Briquetting Machine

Structure and composition

Briquetting machine is a kind of pelletizing machine which can feed various kinds of dry and wet powder through the preliminary pessure device compulsorily into the roll press area and make into high bulk density ball.It is mainly applied in the coal,mining,metallurgy,fire-resistant materials,construction materials and other light metal industries.Our briquetting machines have been widely applied in China and abroad.

Since the first large high-pressure briquetting machine GY750-300 was finished trial-manufacture in 1989,we have formed three series,more than twenty models after mant tears of research,tests and improvements.The structure,performance,quality and service life of products have reached a world- advanced level.

We are also a manufacturing base in China that could provide you with various kinds and latest models of briquetting machines.

Briquetting machine Category

Briquetting machine features

(1)Chinese first high-pressure briquetting machine (GY750-300)was successfully manufactured in 1989.
(2)Fully product range with roller diameter of 520-1200mm could be provided.
(3)High line specific pressure of 11T/CM is forced to design on pre-pressing.
(4)The material has a good extrusion effect with high pelletizing ratio and high density briquettes.
(5)Super wear-resistant roller surface is made by special bearing steel.This kind of roller surface has a good using effect and long working life.
(6)Adopting dual-output shaft reducer structure to improve the accuracy of the double rollers.
(7)Completely-sealed gearbox is used with low noise and without oil leakage.
(8)Fully using ball groove alignment structure of high-pressure briquetting machine for more convenient adjustment.
(9)Adopting hard-tooth-surface gears to greatly improve using performance and life.
(10)Adjustable-speed motor is used for preforming press.All wear parts are overlaid with wear-resistant alloy to improve service life.
(11)The stand-alone hydraulic station can adjust pressure and have the special function of overpressure protection.
(12)Finished briquettes forming lab is ready for customers to provide professional testing with specific datas.

Briquetting Machine spare parts

mainframe

Roller assembly

Ball press spare parts

Roller assembly is the core part of briquetting machine. Particles are fed by squeezing them between two rollers rotating in opposite directions and then form final briquettes. It is composed of items such as main shaft, roller shell, bearing, bearing support and seals. Adopting high quality bearing steel, integral rollers are finished by multiply processes such as machining, UT, milling, hot treatment. After hot treatment, its surface hardness could be up to standard. All rollers are high wear-resisting and replaced easily. The main shaft is made of forging 40Cr, which is processed by multiple processes and processes such as drilling, turning, heat treatment and milling.

Roller shell and main shaft are assembled by an interference assembly, and then assembled into a roller assembly with corresponding seals such as bearings and bearing supports.

Our roller assembly has a high reputation in China and abroad because of its high quality and low price. It can be processed according to the drawings.

Main features:

(1)Adopts spherical roller bearing with high carrying capacity;

(2)Equipping with withdrawal sleeve for bearing by the method of hydraulic to make it easy for maintenence;

(3)Using dual-sealing with maze and oil seal for bearing to guarantee safe and reliable;

(4)Using roller core as a transition between roller shell and main shaft.This two interference fit makes the operation more stably.

Roller shell

roller shell

The roller shell is made of high quality bearing steel and is processed by multiple processes such as turning, flaw detection, milling and heat treatment. The surface hardness can reach above HRC58.

Main features:

(1)Applying high quality forging bearing alloy steel (GCr15SiMn).We have strict quality control on macrostructure and microstructure after spheroidizing annealing;

(2)We will entrust LYC to make a whole quencing after machining the roller shells.The surface hardness could be up to HRC58-62 after quencing;

(3)Multiple falw detections would be made on the process of workblank,rough and finish machining to guarantee the high quality;

(4)In conclusion,our roller shell has many advantages such as high hardness,good abrasion performance,long working life and stable operation.

Internal ring gear

Internal ring gear

Internal ring gear and external gear shaft sleeve are adopted high quality alloy steel and processed by turning, milling, drilling, hobbing,grinding,hot treatment and so on.

Coupler

Coupler

Coupler features:

(1)Applying drum gear coupling to ensure the stability of high torque transmission.

(2)Equipping with extended spindle to guarantee the roller angular;

(3)Equipping with the radial alighment of ball slots to make the adjustment more safe and easier.

Pre-presser

pre-presser

Pre-presser features:

(1)It is electromegnetic or variable frequency speed regulating motor.

(2)It has been applied combined structure for wear parts,easy to remove and replace.

(3)In order to improve the working life,the parts that easy to wear out are all welded with abrasion-resistant alloy.

(4)It has been applied transmission support with thrust bearing under the shaft mounted turbine worm reducer,which make the operation more reliable.

(5)The feeding nozzle equiped with advanced structure with favourable sealing.

Rack

rack

Rack features:

(1)The rack is a combined frame composed of 8 beams throughout by pin rolls.Top beam is connected by two cross beams,which make the rack more simple and safe

(2)This kind of structure could be repaired easily.The top beam could be removed when pulling off the pin rolls.

Reducer

reducer

Adopting the structure of dual-output shaft reducer,which use hard surface gear by fully-sealed drive.Compulsory lubrication would be applied through lubrication station.

BRIQUETTING MACHINE WORKING PRINCIPLE

working principle

The materials are pressed into the pre-press device of the ball press with certain volume evenly when working, and the stable material position shall be kept in the pre-press device. The pre-pressing spring in the device will force the materials into the inter-space between the double rollers, then the materials shall be pre-pressed and transited to the arch groove of the pair- rollers. The roller pits with the same shape are distributed evenly on the roller surface. The 2 pair-rollers shall rotate at constant speed reversely through engagement drive. The rollers will suck the materials at the entry into the groove and forcibly compress them. With the continuous rotation of the pair- roller, the ball shall be taken off by the elastic force and gravity. The roller rotates to compress and form the materials periodically with the continuous operation of the motor to realize the batch production.

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