With the continuous progress of the industrialization model, the early high pollution and high energy consumption economic model has been unable to meet the requirements of industrial development and residents’ quality of life. Enterprise manufacturers have established their own environmental protection and energy-saving production lines with briquetting machines as the core plus coarse crushers, fine crushers, screening machines, conveyors and other equipment.

This production line can compress many industrial wastes, dust, etc. into pellets, and prompt enterprises to reprocess and reuse them. While effectively reducing the company’s production costs, it also plays a role in environmental protection. Briquetting machine is widely used in metallurgy, coal thermal power plants and other industries.

Briquetting machine industry application

Super High-Pressure Briquetting Machine

1. Metallurgical industry

The metallurgical industry can be described as an industry in which a briquetting machine is in great demand. The re-smelting of many waste materials requires the help of a briquetting machine. For example: sludge, scale, dust ash, iron powder, raw ore powder, manganese ore powder, silicon-manganese alloy powder waste.

2. Coal industry

The coal industry is also a hard-hit area for waste accumulation. A briquetting machine is required for the pelletizing and briquetting of various types of coal powder, coke powder, peat, etc.

3. Thermal power plant

Thermal power plants will produce desulfurized gypsum in their daily work, and desulfurized gypsum is an important material for cement production. Solid-heat power plants can use a briquetting machine to make the desulfurized gypsum into balls and then use it for cement production.

4. Refractory material industry; building material industry lime factory, ceramic factory; chemical fertilizer industry

List these industries together. Very simple, because they all need the help of the briquetting machine, because these industries require a lot of lump coal in the daily production process. The direct purchase of shaped lump coal directly affects the production cost due to the excessive demand. The emergence of briquetting machines can enable these industries to directly purchase low-cost coal powder, and use briquetting machines to replace briquette coal, which can significantly save costs over time.

5. Other industries

Of course, the energy-saving and environmentally friendly artifact of the briquetting machine is definitely more than the above. In the daily production, all industries that need to be smelted in the furnace and all need to make powdered materials into balls are good places for the briquetting machine to show its talents.

Briquetting machine classification

Briquette machines

1. Dust ash briquetting machine

The main function of the dust ash briquetting machine is that, in the production process of iron and steel enterprises, a large amount of dust ash, iron scale and other wastes will be produced. The problem of declining performance index, the work of pressing dusty dust and other powdery materials into balls.

2. Coke powder briquetting machine

Coke powder briquetting machine is a kind of ball making equipment capable of forcing various dry and wet powder materials into the roller pressing area through a pre-pressing device to form a higher bulk density. It is suitable for industrial gas making, boiler type, cold pressing type focus, The forming operation of ignition briquette, civil briquette and other materials.

3. Briquette briquetting machine

Briquette briquetting machine belongs to medium and high pressure forming equipment. The molding process of the whole machine is divided into cold compression molding and hot compression molding. In addition, a binder can be added to the material that does not have spheroidizing properties in the process of cold-pressing and forming into balls.

4. Mineral powder briquetting machine

The ore powder briquetting machine is a pair of roller forming equipment, which uses the method of roller forming to suppress materials. It is a key equipment in the complete set of pelletizing technology.

5. Lignite briquetting machine

Because of its low calorific value, high water content, easy weathering and crushing, and easy spontaneous combustion, lignite has caused many difficulties in its combustion or liquefaction as a raw material, dry distillation gasification, and transportation and storage. Lignite briquetting machine tenderizes lignite into pellets with a certain particle size and density, which belongs to the category of high-pressure briquetting machine.

6. Iron powder briquetting machine

The iron powder briquetting machine can directly press the iron powder into balls, and then directly send it into the blast furnace for smelting. A large amount of energy consumed in the heating process of traditional blast furnace smelting and a large amount of pollution to the environment are avoided.

7. Steel slag briquetting machine

Steel slag briquetting machine also belongs to the category of high-pressure briquetting machine. Its high pressure can press high hardness steel slag, steel shavings, iron filings, control volumetric weight, waste recycling, improve use effect and create benefits.

8. Quicklime briquetting machine

Quicklime, also known as calcium oxide, is a common desiccant that uses chemical absorption to remove water vapor. It is also used in the dehydration of steel, pesticides, medicine, desiccants, leather, and alcohol. Quicklime briquetting machine is a kind of high-pressure molding equipment that directly crushes raw materials and produces them on the machine without adding water.

9. Coal powder briquetting machine

Pulverized coal briquetting machine is mainly used for high pressure briquetting machine for pressing various powder materials such as coal powder, coal surface, coke powder, coking coal, coke powder, coke and metallurgical powder cold pressed pellets.

Classification of supporting equipment for briquetting machine

briquette making machine

1. Crusher

There are two types of crushers that are usually matched with briquetting machines, which are ordinary coarse crushers and fine crushers improved with reference to coarse crushers. As its name implies, its role is to crush large pieces of material to meet the requirements of the next operation. In the beneficiation plant, it plays the role of separating the useful minerals into monomers.

2. Screening machine

The process of dividing broken materials into different particle levels through one or several layers of sieve surface is called sieving. The screening machine is to use the relative movement of the bulk material and the screen surface to make some particles pass through the screen hole, and divide the sand, gravel, crushed stone and other materials into different levels of vibration screening mechanical equipment according to the particle size.

3. Conveyor

A piece of equipment as its name implies, conveyors are very common in modern industrial production, any industrial production is inseparable from the conveying process. The prototype is an ancient high-drum car and a water-carrying dump truck, which can be said to have a long history.

4. Hoist

The functions of the hoist and the conveyor are slightly similar, they all play a role in transportation, but the hoist is a large equipment that is transported by changing the potential energy.

5. Mixer

Very common equipment, mainly used for mixing cement, sand, and various types of dry powder mortar. It is also part of the briquetting machine production line.

6. Dryer

The dryer is generally divided into civil and industrial. The general industrial dryer is also called a dryer. It is a device that uses heat energy to reduce the moisture of the material and dry the material.

The above is the introduction about briquetting machine. The briquetting machine production line mainly plays a role in energy saving and environmental protection, and conforms to the cyclic development route. I believe that it will definitely become the core force in industrial production in the future. To customize the briquetting machine, you need to first find a professional design institute to design, according to the size of the project to determine the type of equipment and specifications required, as well as the plant, hydropower, civil engineering, etc., and make a preliminary budget. Once you have a budget, you can choose the appropriate model and configuration based on these conditions.

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Horizontal power mixer is composed of frame, cylinder, main shaft, mixing tools, fin plate, composite wear-resistant liner, transmission device and control system. Inspection holes are provided on both sides to facilitate the operator to inspect and maintain the mixing tool.

The main mixing objects of the horizontal powerful mixer: the mixing of various solid materials and powders, and the high-precision mixing of these materials after adding the binder. It has the remarkable points of stable operation, sturdiness and durability, high mixing precision, stable mixing fruit, continuous operation and no impact on the environment around the mixing equipment.

Advantages of horizontal powerful mixer

horizontal strong continuous crusher

1. Continuous feeding and discharging, efficient mixing

The horizontal powerful mixer adopts a single-axis multi-cavity design, the teeth are arranged in different geometric shapes, and the materials are placed in the front and rear movable curtains of the mixer body to realize the cross between the materials. mixing. This horizontal powerful mixer is particularly suitable for mixing powders and powders, as well as powders and a small amount of liquid (binder), or large specific gravity materials.

2. Stable operation of horizontal powerful mixer

The horizontal powerful mixer has a horizontal structure. When the mixed material enters the mixer through a belt, a rubber gasket is installed in the mixing barrel to prevent adhesion. The mixing tool is made of high wear-resistant steel and welding wear-resistant electrode, and the horizontal strong mixer has a long service life. Reasonable design, stable work and convenient maintenance.

3. Strong sealing, little impact on the environment

The horizontal powerful mixer is a horizontal closed cylinder structure, the inlet and outlet are easy to connect with the dust removal device, and the mixing area has a small environment.

Working principle of horizontal powerful mixer

The horizontal powerful mixer is composed of a frame, a cylinder, a mixing tool, etc., a transmission system and a control system. Among them, the transmission system is composed of a hydraulic coupling, a triangle belt, a torque sensor, an explosion-proof motor, and a hydraulic motor.

During the work, the mixing tool arranged in the middle of the equipment and 13 or 26 mixing rake teeth in different directions on the mixing tool will enter the material of the mixing equipment according to the form of convection, and the material will be strongly sprinkled, sheared, spattered, Exchange, etc., so that the materials are fully mixed in the barrel of the mixer and moved to the discharge end of the mixing device. In this way of mixing, the materials to be mixed are not easy to agglomerate or agglomerate in the mixing equipment.

In the process of mechanical mixing of materials, there are the following five ways:

(1) Shear mixing forms shear surfaces with each other in the materials, so that the mixing of materials takes place.

(2) Convective mixing of many agglomerated material particles moves from one place of the mixer to another for relative flow.

(3) The particles of the diffusion mixed mixture move in a single particle as a unit, similar to the molecular diffusion process in gas and liquid. It is an irregular movement, especially when the particulate material (dust) is in vibration or fluidized state, the diffusion effect is extremely obvious.

(4) Impact mixing causes the particles of a single material to disperse under the impact of the material and the wall shell.

(5) The particles of the crushed mixture are deformed and crushed.

Five mixing methods exist simultaneously in each mixing process, but the main three are the first.

Taking the batch mixer as an example, the mixing process can be divided into three stages. First, the particles penetrate and slide from one part of the material to another part in a mass, and convective mixing occurs. Secondly, the particles of different ingredients are gradually dispersed across the newly formed interface for diffusion mixing. Finally, under the effect of self-weight and centrifugal force, particles with similar shapes, sizes and densities will accumulate in different parts of the mixer, called particle aggregation.

The first two effects are helpful for mixing, while the latter is a separation effect that prevents the particles from being evenly distributed. These three phases occur simultaneously in the mixer, but in different mixing time, the degree of effect is different.

The ball press is an important molding equipment for many materials. As one of the core components of the ball press, the quality of the roller skin of the ball press seriously affects the production efficiency and quality of the ball press. It also affects the pressure of the ball press. Service life, frequent replacement of roller skins will certainly cause disassembly and wear of the ball press. Since the roller skin is so important, it is necessary to ensure its overall quality during processing and production. The staff of the roller skin manufacturer has organized the production process of the roller skin of the ball press for your reference.

There are two methods for manufacturing the roller skin of the ball press machine, one is through casting and the other is forging.

Briquetting machine spare parts

1. Roller skin of casting and pressing ball machine

The roll skin processed by casting is the common 65 manganese spring steel roll skin. The main production method is to smelt steel, cast it in the roll skin mold, and remove it for cooling after cooling to make the surface size, inner diameter and ball and socket size meet the requirements , And then heat treatment to make the hardness of the roller skin meet the requirements.

The roll skin made of 65 manganese spring steel due to the characteristics of the material itself will cause hardening during turning, so it is necessary to complete the feed once during turning, otherwise the heat generated between the tool and the roll skin during turning It will cause a hardened layer. Once the cutter contacts, it is easy to cause the cutter head to crack and damage the surface of the roller skin; after turning the casting type roller skin, pay attention to the heat treatment, use oil quenching during quenching, and use warm water during tempering Quick cooling to avoid the second type of temper brittleness.

roller assembly

2. Roller skin of forging and pressing ball machine

There are two main types of forged roller skins, one is 9 chromium 2 molybdenum alloy steel and the other is bearing steel. The main difference between the production of this type of roller skins and the casting roller skins is that the casting roller skins are directly cast by casting molds, which cannot be welded due to the material characteristics, while the forged roller skins can be processed by welding. The part of the roller skin is welded as a whole, and then heat treatment process.

The forged processing roller skin is stronger than the casting roller skin, and the wear resistance is also higher than the casting roller skin. It has a wider application range, lower machining requirements, multiple feeds, and the ball socket can be engraved and worn according to actual needs. The post-repairability is better; the bearing steel in the forged roller skin is a material with better use characteristics than 9Cr2Mo, hardness and wear resistance on the market today, and it is very suitable for the compression molding of many hard materials.

roller shell

It can be seen from the above that in the production of the roller skin of the ball press, turning and heat treatment are two processes that have a great influence on the quality of the roller skin. For the casting roller skin, it is very difficult to turn the roller skin with a large diameter. At the same time, it also needs to achieve one-shot shaping, which is a test of the technical level of the lathe, and it must ensure the use of media and temperature control during heat treatment. Therefore, the roller skins of this type of ball pressing machine on the market are used on smaller ball pressing machines, and The hardness is not high enough, and the suppression of mineral powder materials cannot be used.

The ball presses produced by Luoyang Zhongyuan Mining Machine Manufacture Co., Ltd. all use bearing steel forged roller skins, which are suitable for welding in the same way as 9 chromium 2 molybdenum, easy to repair, and the machining process can be fed multiple times, and the machining accuracy It can be guaranteed, but it is more wear-resistant than 9 chromium 2 molybdenum roller skins and has a longer service life, which can reduce the amount of roller skin replacement.

In industries such as metallurgy, mining and refractory, in order to mix and humidify loose materials, various mixing devices are often used. Among them, the double-shaft mixer is favored by various industries because of its high degree of automation and continuous mixing. These advantages are inseparable from the structure of the dual-shaft mixer. Let’s take a look at the structure of the dual-shaft mixer.

1. Transmission device

The motor is decelerated by V-belt drive and planetary reducer, from high speed to low speed, and the power is transmitted to the mixing spindle through the spline shaft and spline shaft sleeve; at the same time, the synchronous drive shaft is connected between the two reducers to ensure the two mixing spindles Synchronize. The advantages of this system are: smooth transmission, large transmission torque, and high cost performance.

double-shaft mixer

2. Shaft end seal

The shaft end seal is composed of a bearing seat, a bearing, and a lubricating oil path to support and position the agitating shaft. At the same time, the high-pressure lubricating oil path lubricates, dissipates, and seals the support base and the agitating shaft head to form a sealed oil chamber To ensure that the mud does not erode the bearing seat and the mixing shaft.

3. Centralized lubrication device

The lubrication device of the mixer is one of the core components of the mixer, and its action directly affects the working efficiency and service life of the mixer. The lubrication system is composed of electric lubrication pumps and oil pipes. The grease is pressurized by an electric pump and reaches the four shaft ends of the mixer. The pressure grease forms a high-pressure protective layer on the shaft end to prevent mud from invading the shaft end, thereby protecting the shaft end of the bearing and the stirring shaft.

Automatic lubrication points: 4 (shaft end seal);

Manual lubrication points: 10 (4 spindle bearings, 2 discharge door bearings, 4 shaft end seals);

Lubrication system: A centralized lubrication system is used. There are four pumps to seal the four shaft ends.

4. Cylinder block and liner group

The mixing cylinder is a w-shaped double barrel bent from a wide and thick steel plate. It has a strong yield force under the support of a specially designed and manufactured frame. The supporting part can also make the cylinder rigid enough to ensure a double bedroom. The parallelism of the axis and the concentricity of the single axis. Each side is equipped with a maintenance platform, which can be retracted and supported according to needs, which is convenient for operation and maintenance. In order to prevent the abrasion of the mixing cylinder, a high-hardness high-chromium wear-resistant lining plate is installed inside and on the side of the mixing cylinder. The lining plate is fixed on the cylinder block with bolts. Liner blades: high chromium wear-resistant cast iron. Lifespan is up to 70,000 cans.

5. Stirring device

The mixing device is composed of a main shaft, a mixing arm, a blade, a scraper, etc. The two mutually parallel main shafts of the mixing device are each equipped with 7 mixing arms, and the two adjacent main mixing arms on the same main shaft are distributed at 60 °. The relative angle relationship is fixed, and this fixed relationship is guaranteed by the coupling between the two reducers (in view of this, do not easily disassemble the coupling). Each agitator arm is designed according to hydrodynamics to make it stronger and reduce the resistance during agitation, as well as reduce the amount of wear.

6. Discharge door

It is composed of the main body of discharge door, cylinder and proximity switch. During automatic operation, three states of fully open, fully closed, and half open are generally set. During operation, high-pressure gas is passed to the cylinder, and the cylinder drives the swing lever to rotate the door body around the bearing seat to achieve the purpose of opening and closing the door.

7. Upper cover and water distribution pipe device

Two access doors are installed on the upper cover for use during inspection. A safety switch is installed at the maintenance door. When the maintenance door is opened, the mixer stops working. So as to ensure that the maintenance personnel can maintain the safety inside the cylinder. An observation window is opened on a maintenance door for the staff to observe while the mixer is working. The water pipe is arranged reasonably so that the water can be evenly distributed in the cylinder. More importantly, its conical spiral nozzle can effectively prevent clogging.

The above is the structural knowledge about the twin shaft mixer. It can be seen that this equipment is very excellent and efficient from design to production, which can meet the mixing needs of various related industries.

The briquetting machine has an irreplaceable role in major mining and industrial production. Its main function is to press and process powdered materials into larger pellets, thereby making the materials more convenient for subsequent use, more convenient transportation, and also Can reduce the transportation loss of materials.

On the briquetting machine, the component of compacting the powdered material is the briquetting machine roller skin. There are many ball sockets of the same size, same shape and regular arrangement on the roller skin. The processing of machine roller ball socket is also a very important work in the design and production process of briquetting machine.

Design Principles of Roller Ball Spherical Socket of Briquetting Machine

The design of the roller ball socket of the briquetting machine is to be prepared before the production of the briquetting machine. The three elements of the roller skin material, ball socket size and ball socket shape should be mainly considered.

1. The material of the roller skin directly affects the service life and processing difficulty of the ball socket. There are three commonly used materials for the roller skin of the briquetting machine. The processing methods are divided into forged roller skin and casting roller skin. Not high enough, so the material pressed by the ball press should be fully considered in the design, and the roller skin with appropriate hardness should be selected.

2. The size design of the ball socket can not be too small or too large, mainly refers to the depth of the ball socket, too small will cause the pressure of the ball press to reach, it is not easy to demold, and the carving of the small ball socket is difficult. The effect of the ball is not ideal; if the size of the ball socket is too large, the strength of the ball will not meet the requirements, thereby reducing the pass rate of the product.

3. The shape of the ball socket is various, but the characteristics of the material should also be fully considered in the design. For example, the dry powder briquetting machine should choose a flat square ball socket. With the corresponding smaller size of the socket, the ball formation rate can be fully improved.

Roller ball socket processing of briquetting machine

Briquette machines

1. Ball socket processing flow

The first thing to do in the processing of the roller ball socket of the briquetting machine is to determine the material of the roller skin, and then cast or forge according to different materials:

(1) The ball and socket of the casting roller skin should have a certain size and shape during casting, and then the roller skin is clamped on the lathe, and the tool is fed with a tool for lathe machining, and the surface size of the roller skin and the ball socket are The dimensions are processed simultaneously.

(2) For the ball and socket processing of forged roller skins, it is necessary to weld the roller skins of each section as a whole, and then perform surface dimension processing on the lathe. After the surface processing of the roller skins is completed, the ball and socket are carved on the milling machine.

briquette making machine

2. Matters needing attention in ball and socket processing

(1) When processing the ball-and-socket of casting-type roller skins, the casting-type roller-skin will harden during turning, so if it is processed again, it will collapse the cutter head and damage the surface of the roller skin; When the heat treatment is completed, oil quenching should be used, and quick cooling and tempering with warm water.

(2) For ball-socket processing of forged roller skins, pay attention to the use of multiple feeds when engraving on the milling machine. Although the depth of the ball-socket is not large, it is also necessary to avoid directly plunging the milling cutter into the roller skin, otherwise it will easily collapse A bad knife head pierces the surface of the roller skin and affects subsequent engraving work.

The processing conditions of the roller ball socket of the briquetting machine should fully consider the application conditions of the ball pressing machine, especially for materials of different hardness, the roller skins of different hardness and wear resistance should be used, so several factors in the design should be considered.

The briquetting machines produced by Luoyang Zhongyuan Mining Machinery Manufacturing Co., Ltd. all use bearing steel forged roller skins. The ball socket is easy to process and has a long service life. It is also very convenient to repair later. If you have any questions, you can leave a message on our website or call customer service phone for detailed consultation.

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The briquetting machine is in a state of continuous operation for a long time, coupled with poor maintenance and other internal and external factors, causing many parts to fail prematurely. The service life of the briquetting machine mainly depends on the quality of its wearing parts, especially the pressure roller. A good pair of pressure rollers will greatly improve the service life of the ball press, but even the best rollers will be scrapped. Time limit and standard, then what should be the standard for scrapping the wearing parts of briquetting machine?

1. The distortion of the gear ring rim should not be greater than 7.5mm.

2. The wear of the pinion surface should not be greater than 30% of the tooth thickness. The wear of the large tooth surface should be greater than 25% of the tooth thickness. It can be used on the reverse side, and it should be scrapped when it is ground to 1/2.

high-pressure briquetting machine

3. Grooves, marks on the outer surface of the hollow shaft or local wear on the inner circular surface will cause the hollow shaft to deform and crack, and should be replaced.

The above situations are common to us. If the briquetting machine is damaged, it can be used normally. Not only should it be carefully maintained, but also used in principle. Usually the machinery is broken, we will ask a repairer to repair it. In fact, we can also repair some things ourselves, and then we can use it.

In our daily use of dry powder ball presses, there are usually some undesirable phenomena. Sometimes users do not have experience in this area and have paid enough attention to this, but the arbitrary development of some phenomena will cause very serious consequences.

More common phenomena:

1. The appearance of the hollow shaft is caused by grooves, marks or partial wear on the inner circular surface to cause deformation of the hollow shaft and cracks and other conditions should be replaced.

2. The distortion of the gear ring rim should not be greater than 7.5mm.

Mineral powder ball machine

3. The wear of the pinion surface should not be greater than 30% of the tooth thickness. The wear of the large tooth surface should be greater than 25% of the tooth thickness. It can be used on the reverse side, and it should be scrapped when it is ground to 1/2.

4. The wear of the bearing bush is greater than 1/3 of its thickness.

The above is the standard standard of the wear and scrap parts of the briquetting machine in use. If there are any of the above problems, the briquetting machine parts should be replaced in real time. Abandoned briquetting machine accessories, at the same time, they must be regularly adjusted to make the briquetting machine longer life.

The high-pressure counter-roller briquetting machine is a device for pressing powdery materials into balls. The following materials can be briquetted, pelletized or pelletized, such as aluminum shavings, activated carbon, alumina, bauxite, caustic soda, charcoal, clay, coke shavings, coal, cryolite, fertilizers, plastics, limestone, pigments, Urea, potash, etc.

Its purpose is to reduce dust, control volumetric weight, return to use, and improve transportation characteristics. It is mainly used to suppress powder materials that are difficult to form. It is characterized by large forming pressure, adjustable host rotation speed, and a spiral feeding device. Mainly used for: coal powder molding; dry powder molding; desulfurized gypsum molding; coke powder molding; iron filings and various metal ore powder molding, etc.

Briquetting machine spare parts

The roller skin of the briquetting machine is in direct contact with the material and is subjected to the pressure from the roller to polymerize the powder. Therefore, if you work continuously for a long time, wear is inevitable. Improper application or long-term application requires the replacement of new roller skins. In particular, if you take too hard debris mixed in the material and the machine is not equipped with hydraulic protection device, it is easy to damage the roller skin. Therefore, the maintenance work of the roller skin is done, which greatly improves and helps the durability of the lime powder briquetting machine.

Before the operator takes the post, check whether there is any looseness of the pressure roller. If the pressure roller deviates, it does not correspond and it is easy to wear the roller skin. If the pressure roller deviates and becomes loose, the staff must take a shutdown, reinstall it, and then start the operation. After the work is completed, the roller ball of the lime powder briquetting machine must be cleaned to ensure the cleanness of the pressure roller.

One is that the roller skin material is very influential. Therefore, users should make important reference when choosing lime powder briquetting machine. If the quality and material of the roller skin are not up to standard, there is no good foundation. Even if the protective measures of the briquetting machine are in place, the occurrence of wear cannot be avoided. Therefore, the quality of the roller skin is an important premise and guarantee.

roller shell

Lime powder materials are guaranteed not to be doped with any debris: such as stones, nails, hard metals. If economic conditions permit, a drum screen can be used, which can be used for boring screening first, or at the feed inlet. Install metal detection installation to separate non-pressed ball materials early. The selected lime powder can be entered into the lime powder briquetting machine by an automatic feeder. In the case of too much material, the pressure roller may also be damaged.

In the production line of the roller briquetting machine, the ball socket of the briquetting machine will occasionally have a left and right misalignment. This situation is very rare. It is recommended that the user should do daily maintenance of the equipment. If this happens, the briquetting machine The manufacturer recommends to adjust according to the following methods:

First find out the adjustment disk provided at the end of the passive gear, loosen the surrounding screws, and use a manual wrench to tighten the screw top wire until the adjustment disk is in a loose state;

Then adjust to the best state according to the misalignment of the two ball sockets. When this phenomenon occurs, first check whether the bearing is damaged. If there is, replace the bearing, if not, loosen it. You need to adjust the top cover of the bearing housing of the pressure roller;

According to the amount of displacement, add or subtract gaskets at both ends of the bearing top cover;

Finally tighten the cover bolt.

In modern industrial production, in order to save raw materials, various equipments in various industries emerge in endlessly. As an important equipment for processing and pressing and reusing, the ball press machine will inevitably have various wear and aging in use. Important work components in the ball press machine Roller skins are often replaced after being worn.

The roller skin is a cylindrical member with a ball socket dug in the outer layer wrapped around the roller core of the ball press. Usually, the pressing of the material depends on the hydraulic drive roller, which is formed by the ball socket of the roller skin, as a very easy to wear ball pressing mechanism. Frequent replacement is unacceptable to the operator, but the roller skin of the ball press after wear cannot meet the production requirements, and it ca n’t be replaced without replacement. It is very important to maintain the roller skin during use. The specific ball press What is the maintenance method of the roller skin?

1. The roller skin of the ball press machine must be installed correctly

There are four installation methods for the roller skin of the ball press. Different briquetting machines use different methods, but the installation standards are the same. First, the installation of the roller skin cannot be misplaced. If the roller skin is already misplaced during installation, then Not to mention the production, the shape of the ball and socket on the roller skin must be aligned, otherwise problems such as no ball, loose ball, and unrealistic spherical shape of the briquetting machine will occur; at the same time, because of the misalignment between the roller skin and the ball and socket The edges of the dimples wear on each other, and the roller skins will need to be replaced after a long period of time.

Briquette machines

2. The briquetting machine should be protected before working

The commonly used steel for the roller skin of the casting briquetting machine is 65 manganese alloy, the commonly used steel for the roller skin of the forging ball briquetting machine is 92 chromium molybdenum. Casting roller skins are relatively wear-resistant, but they have a low cost. Some operators are not bad. It is not a problem to replace roller skins frequently. However, for operators using forged roller skins, the more durable the roller skin is, It is better not to replace, but the maintenance method of the roller skin of the briquetting machine is not allowed.

After the roller skin is installed correctly, if you want to reduce the wear of the roller skin, you must take certain protective measures before the equipment works. A magnet must be installed on the feeding belt conveyor to prevent hard metal objects from entering the roller skin and causing the roller skin to tie Injury, the staff should pick out the stones in the process of material transportation, and ensure that the particle size of the material is less than 3 mm, so that while ensuring the service life of the roller skin, it can also ensure that the material molding will not cause problems; Before that, the staff had to check the rollers of the ball press machine to see if there were any looseness or deviation. If this phenomenon continues, it is easy to break the rollers, and the loss is not only the roller skin.

metal briquette machine

3. The work of the ball press machine must ensure the safety of the production equipment

The hydraulic protection device is one of the cores of the briquetting machine. While providing the required production pressure for the rollers, it can also be overloaded by the hydraulic cylinder piston rod when the feed between the roller skins or the metal block is too much. The hydraulic pump stops and the pressure changes cause the accumulator to buffer, and the overflow valve opens to return oil to displace the piston rod, thereby increasing the gap between the two roller skins. This series of actions allows hard objects to pass through the rollers to ensure the roller skins. No more serious damage.

If you want the hydraulic protection device to play its due role, you must carry out normal maintenance work. In work, the pressure supply of the hydraulic device must be reasonable, the stroke must not be excessive, and at the same time, the oil temperature of the hydraulic oil must not be too high or low. In the usual time, the hydraulic oil should be filtered regularly. If there are impurities in the oil, it is easy to damage the seal , Causing movement failure, and even the master cylinder will have scratches.

Briquetting Machine Structure

4. Clean up in time after work

A clean production environment allows employees to ensure a positive working attitude during their work. Hygiene cleaning is required after daily work. In addition to floor cleaning, cleaning the equipment is also one of the maintenance methods of the roller skin of the briquetting machine. There is too much dust It is easy to form dust accumulation in the active parts of the equipment and the exposed bearings. If it is not cleaned for a long time, it will affect the safety and normal production, and it will also cause damage to the equipment. Some materials pressed by the ball press are corrosive, and employees are When the equipment is cleaned, the remaining materials on the roller skin and the ball socket should be cleaned up to prevent the roller skin from being corroded for a long time, which will cause damage to the roller skin.

In the daily production of the enterprise, the maintenance method of the roller skin of the briquetting machine must be correct in order to ensure that the vulnerable part of the ball press is not so vulnerable, and increase the benefit of the enterprise in disguise. It is the equipment maintenance metho

The hammer crusher is composed of a box body, a rotor, a hammer head, a backing liner, and a caster bar. Several rows of hanging hammer bodies are installed on the main shaft of the crusher, and pin shafts are penetrated through the pin holes on the circumference of the crusher. The hammer shaft is used to hinge the hammer between each row of hanging hammer bodies. The working surface can be replaced after the hammer is worn. There are two trapped pin holes on the top. The distance from the pin hole to the axis of rotation is different. It is used to adjust the space between the hammer and the grate.

In order to prevent platinum movement of the hammer body and the hammer, the compression hammer disk and the lock nut are used at both ends of the hammer body to be unchanged, and the two ends are supported on the rolling bearing, and the bearing screws are not changed on the casing. The main shaft and the motor are directly connected by an elastic coupling. In order to make the rotor operate smoothly, one end of the main shaft is equipped with a flywheel.

The arc-shaped discharge screen is installed under the rotor, and the two ends of the grate are installed on the beam. The grate outside the staff is pressed with a pressure plate. The direction of the grate is perpendicular to the direction of rotor movement. The grate space protrudes from the middle of the grate Partially formed, in order to facilitate the discharge of processing raw materials, the grate slits gradually increase downward, and at this time they are also skewed in the direction of rotor rotation.

Hammer crusher structure

ring hammer crusher

1. Chassis

The shell of the hammer crusher is composed of the lower machinery, the back upper cover, the left side wall and the right side wall, and the parts are connected together by screws, the top is built with a feeding port, and the inner wall of the shell is all lined with high manganese steel Inlay is convenient for replacement after the lining is worn. The lower machine is welded with carbon structural steel plate. In order to place the bearings on both sides to support the rotor, the bearing support is welded with high manganese steel. The bottom of the chassis can be directly used with anchor screws. The concrete remains unchanged. The rear upper cover, left side wall and right side wall of the casing are also welded with carbon structural steel plates.

There is no protective measures between the casing and the shaft. The ash leakage phenomenon is very serious. In order to prevent ash leakage, The shaft seal is installed in any part of the casing that contacts the shaft. In order to facilitate maintenance, adjustment and replacement of the caster bar and hammer head, maintenance holes are opened on the lower machine and both side walls.

2. Rotor

The rotor is the main working part of the hammer crusher. The rotor is composed of the main shaft, hammer disc, pin shaft, hammer head, etc., and the pin holes are evenly distributed on the disc. The hammer head is suspended by the pin shaft. In order to prevent the disc and hammer head The axial movement of the shaft is fixed at both ends of the pin shaft with a lock nut, the rotor is supported on two rolling bearings, the bearing is unchanged on the support of the lower machine through screws, and the two positioning pins are not changed at the distance between the bearings.

In order to reduce the peak load of the motor and reduce the wear of the hammer head, the rotor is purposely equipped with a flywheel at the end of the main shaft in order to store the kinetic energy of the rotor in motion. The main parts of the rotor are specifically described below.

3. Spindle

The main shaft is the main part of the hammer crusher supporting the rotor. The weight and impact force of the rotor and hammer head are borne by it. Therefore, the material of the main shaft needs to have improved toughness and stress performance. The material of the main shaft uses good performance alloys The steel is crushed by ultrasonic flaw detection for quenching and tempering. 2.2 The hammer disc of the hammer disc hammer crusher is used as a suspended hammer head. In the operation of the hammer crusher, the hammer disc cannot prevent the impact and rock Friction, so the hammer plate needs to have its wear resistance. The hammer plate and hammer hole use high-strength steel carburizing heat treatment to improve its wear resistance.

4. Hammerhead

The hammer head is an important working part of the hammer crusher. The performance, shape and material of the hammer head are related to the capacity of the hammer crusher. The size of the kinetic energy of the hammer head is proportional to the weight of the hammer head. The heavier the hammer head is, The greater the kinetic energy, the higher the crushing efficiency. The weight type of the hammer head is complete. The small hammer head is 15 kg, and the large hammer head can reach 298 kg. A variety of hammer head weights can be designed according to customer requirements. The hammer head uses new types of good performance Multi-element high chromium manganese steel composite casting, its use time is several times that of the usual hammer head.

5. Liner and impact plate

The hammer crusher beats the rock at high speed with the hammer head, and the rock has a great speed and kinetic energy in an instant. In order to prevent the wear of the frame, the inner wall of the frame is made of manganese steel as the lining plate, and the impact plate is made of high-strength steel. Strengthen the disposal, the superior wear resistance and impact resistance of the lining plate and the impact plate. Due to the harsh working environment of the hammer crusher, the performance of the hammer crusher is related to its service life. The material of the combined parts.

The advantages of hammer crusher

(1) Working hammer head, using new workmanship casting, with wear resistance and impact resistance.

(2) The required granularity can be adjusted according to customer requirements.

(3) The structure of the hammer crushing machine is sealed, and the problems of dust pollution and mechanical ash leakage in the crushing workshop are dealt with.

(4) The overall design is beautiful in appearance, compact in structure, few wearing parts, easy to repair and so on. It is a rectification and replacement machine.

(5) Compact structure, beautiful appearance, good wear resistance, convenient maintenance and protection.

Operation principle of hammer crusher

The hammer crusher mainly relies on impact energy to complete the crushing of raw materials. When the hammer crusher is working, the motor drives the rotor for high-speed operation, and the raw materials are evenly entered into the crusher cavity. The high-speed rotary hammer impacts and shears The processing material is torn by the torn processing material. At this time, the gravity of the processing material causes the processing material to rush from the high-speed hammer to the baffle and sieve bar in the frame. Continue to obtain the impact and milling of the hammer on the bar until it is crushed to the desired discharge particle size and then discharged out of the machine through the caster bar.

The roller skin of the ball press is a cylindrical shape member with a ball and socket dug on the surface layer of the roller core of the ball press. For ball presses and other equipment, the roller skin is a key component and plays an important role. The life of the roller skin determines the life of the ball press and also determines the shape of the ball press.

Roller skin material

The material of the roller skin of the ball press is divided into 65 manganese, 9 chromium 2 molybdenum, high chromium alloy and so on. When pressing different materials, different ball press roller skins should be selected: 65 manganese material is more popular, belongs to steel castings, and has a lower cost. It is generally used on small-volume ball presses, such as coal powder ball presses. Can crush coal powder, coke powder, charcoal powder and other materials: 9 Cr 2 Mo, high chrome alloy ball press roller is a forged part, mainly used in medium and large-scale coal briquette presses with high output. , Iron powder, magnesia powder, laterite nickel ore, etc.

Selection of ball and socket size for roller compactor

According to the needs of different users, the roller skin of the ball press is mainly divided into different shapes such as goose egg shape, trapezoid, cuboid, stadium type and so on.

The size of the roller ball and socket of the ball pressing machine cannot be too small. If it is too small, the pressure of the whole machine cannot be reached, and it is also a fixed problem when holding the ball, and the small ball and socket are being manufactured It is also quite troublesome, and the production cost is much higher than normal, so the size of the roller skin ball socket cannot be too small; if the size of the roller skin ball socket is too large, it is quite convenient for production For users, it is also very convenient, but it is also a problem to put into use afterwards. In large cases, the hardness will definitely decrease, and the strength may not meet the requirements for use. Therefore, the size is not too large.

The shape and size of the ball sockets of different types of ball presses will vary depending on the materials in order to meet various requirements. For example, for dry powder ball presses, you need to choose flat ball sockets, and the ball sockets are not large and shallow. The main reason is that dry powder ball presses do not allow any stickiness when pressing raw materials. Mixtures, if deep and large ball sockets are used, the ball formation rate is not high. It is even difficult to shape.

For briquette ball presses, large ball sockets should be used as much as possible, and the ball sockets should be set in the shape of balls, so as long as the moisture content of the materials and the amount of binder are controlled, the finished product rate of the pressed balls is as high as 95% , And the ball strength is very good. If it doesn’t work, you can try to press the ball twice to ensure the ball formation rate and strength. Therefore, the style design of the roller skin of the ball press equipment should also refer to and follow other aspects.

According to the current ball press production practice, the size of the current roller skin goose egg-shaped ball socket is generally 10mm-7mm. As for the size of the other shapes of the ball and socket, it needs to be customized according to different requirements. The output of the ball press is also determined based on the size of the ball socket.

Briquetting machine spare parts

The ball press roller skin installation

There are four installation methods, and everyone can compare their ball presses to install the appropriate method.

1. Bolt fastening method, that is, the roller sleeve and the hub are designed with bolt holes and tightened with refined high-strength bolts. This method is convenient for the field disassembly of the roller sleeve. Machine applications.

2. The cone sleeve assembly method, that is, the roll sleeve or the hub is designed with a taper, and it is tightened by the middle cone sleeve. This form is conducive to the disassembly of the roller sleeve and is used in the low and medium pressure ball press.

3. The tight fit hot-loading method, that is, the roller sleeve with ball socket is heated and installed on the wheel hub. This assembly form has high processing accuracy and strict processing temperature control. It must be useful when replacing, and it is generally used in high-pressure ball presses. Powerful ball press.

4. Key connection assembly method: The shaft and the sleeve have key grooves. The shaft and the sleeve are connected by keys. Because the shaft has key grooves and threads, the diameter of the main shaft of the ball press equipment is slightly larger than the shaft diameter of the keyless assembly. .

The ball press roller skin disassembly

1. The power must be turned off, and the main switch can be turned on.

2. After the power is cut off, put a warning “under repair” in a conspicuous position.

3. First perform pressure relief treatment on the lubricating pump, pull the switch for the supply belt of the mine belt, clean up the pumice on the belt head, remove and remove the four major parts, such as the cutout cover, the large pot, the cover plate, and the fixed cone dust cover. . The crane needs to be commanded by people during the lifting process, and strictly observe the lifting operation regulations.

4. If the old lining board cannot be removed, you can use gas welding to cut and clean the inner surface of the rack.

How to prevent roller skin damage during ball forming

The pressure roller is the core component of the ore powder ball press. It directly contacts the material and uses strong pressure to press the raw material into a ball. If the ball press material contains high hardness impurities such as metals, the roller skin will be damaged. Ball press machine manufacturers suggest to install iron remover to solve this problem, it can remove all kinds of impurities contained in raw materials to ensure that the ball press molding process will not adversely affect the pressure roller.

The common problem of the roller skin installation

Tooth roller

1. Misalignment of the roller skin of the ball press

If there is a “dislocation” in the circumferential direction, we can have an adjustment disk at the passive gear, and use the adjustment disk to make the following adjustments: first loosen the circumferential bolt, then use a manual wrench to tighten the top wire, and then press the direction of the displacement and how much To determine the direction of the top wire and the number of buckles, tighten the circumferential bolt on the adjustment disk, and then insert the test board to test the misalignment and adjust.

If there is an axial misalignment, we can first loosen the cover of the bearing seat that needs to be adjusted, and then add or subtract gaskets on the bearing cover according to the amount of displacement, and then tighten the gland bolts.

2.There is abnormal noise after installation

There is a strange noise behind the roller skin and it is intermittent. In fact, this problem is very simple, mainly caused by irrational assembly.

The link between the main shaft of the ball press and the reducer is a coupling. Most of the swash plate couplings are used. During the assembly process, it is necessary to ensure that the three parts of the swash plate, the output shaft of the reducer, and the main shaft of the ball press are the same. On the center line, the deviation should not exceed 3mm, because many customers do not have spreaders on the site, and the machinery and equipment are heavy, so the ideal result was not achieved during the assembly process.

It is found that such problems are not resolved in time. Light will cause damage to the coupling, and heavy ones will break the reducer casing. Therefore, it must be resolved in time to avoid serious consequences. Abnormal sound will also occur when the reducer is short of oil. It is necessary to check the oil level of the reducer in time to avoid dry grinding.

Major advantages of mosaic roller skin

1. Easy to replace

When the roller skin wears to a certain extent, it needs to be replaced, and it can be replaced in only four hours. After the overall roller skin wear, it needs to be returned to the factory for repair. The period will take 14 days. Longer time, the neck of the owner of the card, there is no way to worry. The manufacturer’s repair method is to cut off the roller skin by gas cutting and remove the two bearing seats and bearings. It is easy to hurt the shaft during the disassembly process. At this time, the shaft must be ground with holes. It’s gone.

2. Long life

Because under the premise of the same material, the service life of the inlaid roller skin is 1.5 times that of the whole set. After the heat treatment of the inlaid roller skin is no longer used to heat the assembly with a fire source, but bolts and keys are used to firmly attach the wheel segment, and the entire roller skin needs to be heated to 180-220 degrees Celsius before it can be opened. Sleeve on the shaft, the hardness will be reduced by 8-10HRC during this process, the hardness will be shortened and the life will be shortened.

3. Low cost

Manufacturers who use the overall roll skin must reserve two sets of spare parts, otherwise the turnover will not open, and the inlaid roll skin can be replaced flexibly, whichever can not be used, which can be exchanged.

Ball cleaning machine roller cleaning method

1. After each pressing production of the ball press, the roll skin must be cleaned in real time to ensure that there is no residue in the ball socket of the roll skin. This can avoid the problem of difficult to clean up the material residue after a long time . Moreover, it can also ensure that the subsequent production will not be deformed or derolled due to the residue.

2. If the rollers cannot be demolded or the pellets are produced irregularly, then a series of adjustments to the roller skins are needed, because long-term production runs may cause the roller skins to be misaligned or offset. After the adjustment, observe whether the ball is regular. If it is still irregular, check other parts.

3. The maintenance work of the ball press roller skin should be cleaned and maintained every time and every day according to regulations. No matter what equipment, timely cleaning and maintenance are the prerequisites to ensure the normal operation of the equipment without failure. Only the maintenance of the guaranteed equipment can guarantee the life and operating quality of the equipment, and further progress to ensure the production of product failure.