compound crusher

Compound Crusher

Compound crusher introduction

The compound crusher is a composite crusher that integrates multiple crushing methods. It combines the advantages of counter-breaking, hammer breaking and ring hammer breaking. It adds a purlin screen at the material exit and realizes it on a crusher. The three-stage crushing, the crushing chamber is tall, and has the advantages of high efficiency, energy saving, simple maintenance, less wearing parts, long service life, and low labor intensity of workers. The crusher is especially suitable for fine crushing of fine coal and electrolyte crushing in tamping coking plant. It is widely used in cement, electric power, mining and other industries, especially suitable for limestone, slag, building materials waste, coal gangue, coal and other medium hardness. Medium and super fine work.

Compound crusher principle

The compound crusher has a high cavity, the side is fed, and the equipment is broken in three stages.

The first and second stages of crushing: This section is broken by the principle of a counter-crusher. The machine is driven by a motor through a hydraulic coupling to rotate the rotor at high speed. A hammer head is hung on the rotor disc, and the material is separated by the centrifugal force and impacts the material at a high speed to crush the material for the first time.

The hammered material splashes at a high speed on the counterattack plate, and collides with the counterattack plate to obtain secondary crushing. This is repeated. Therefore, for one hit of the material, three crushing can be obtained, which improves the crushing efficiency and reduces the energy consumption. This section of the crush fully reflects the advantages of low energy consumption and large crushing ratio of the impact crusher, but because of the random crushing, the crushing granularity of this section is not uniform.

The third stage of crushing: the crushing principle of this section adopts the principle of hammer crusher. After the material falls onto the crushing plate, it is further crushed by the shearing, pressing and grinding of the hammer head and the particle size of the segment is uniform.

Since the material has been broken in the previous stage, it is equivalent to greatly reducing the stroke of shearing, squeezing and grinding, thereby achieving energy saving and greatly reducing the wear of the hammer.

The broken terminal is closely connected to the sifting screen, and the discharge granularity is strictly controlled, thereby greatly improving the yield of the finished product.

Advantages and features of compound crusher

Final products have high finesse. discharging size ≤3mm is up to 90%-92%;

The machine masterly carries out three grade crushing with many advantages of impact crusher, hammer crusher, ring hammer crusher;

Hinges for upper and bottom machine body, open the upper cover by hydraulic controlling, convenience to maintain and inspect;

Large crushing ratio,long service life of wear parts (6-8months), high efficiency, energy-saving, cost-reducing greatly.

Order notes

1. The compound crusher is supplied as right-installed generally. Please specify in the contract if it needs to be installed at left.

2. Material characteristics, feeding size,discharging size,required capacity and moisture content should be presented in the contract.

3.Standard configuration does not contain the electrical control. If needed, please specify in the contract.

Applicable material

It is mainly used for medium and small crushed cement raw materials and clinker. It is used for the crushing of other medium hard ores such as construction sand, iron ore, sandstone, gypsum, coal gangue and lump coal.

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Related spare parts: jaw head

The movable jaw assembly is the main part of jaw crusher. It is mainly assembled by pulleys, flywheels, movable jaw, movable jaw plate, and bearings. The jaw plate is made of high-manganese steel. According to different crushing materials, some other chemical elements are added on the basis of high-manganese steel, which greatly improves the service life of the jaw plate.

Compound Crusher

Parameters of compound crusher

Model
Rotor dia.
mm
Rotor width mm
Feeding size
mm
Discharging size mm
Capacity t/h
Motor power
kw
Weight
t
Model
Rotor dia.
mm
Rotor width mm

CHB0808

800

800

≤80

≤3

10–30

45/55

7.5

CHB0808

800

800

CHB1010

1000

1000

≤80

≤3

30–55

55/90

9.8

CHB1010

1000

1000

CHB1014

1000

1400

≤80

≤3

55—75

90/132

12.1

CHB1014

1000

1400

CHB1016

1000

1600

≤80

≤3

75–90

160/200

13.1

CHB1016

1000

1600

CHB1312

1300

1200

≤80

≤3

90—140

185/250

18.3

CHB1312

1300

1200

CHB1316

1300

1600

≤80

≤3

140–180

250/315

24.1

CHB1316

1300

1600

CHB1615

1600

1500

≤80

≤3

180–260

450/630

31.6

CHB1615

1600

1500

CHB1616

1600

1600

≤80

≤3

200–280

560/630

32.7

CHB1616

1600

1600

CHB1618

1600

1800

≤80

≤3

220–320

710/800

34.6

CHB1618

1600

1800

Common problems of compound crusher

The reason

1. The reliability and sensitivity of the air pressure automatic switch. The start and stop of the compound crusher are usually directly driven by the air pressure automatic switch (air pressure relay) to directly drive the AC contactor to automatically control the motor. Most of the pneumatic automatic switches adopt a mechanical structure, which uses springs to compress and release energy to operate the contacts. Perhaps it is due to the congenital deficiency of the automatic air pressure switch or the influence of different reasons such as improper adjustment and machine vibration.

2. The mechanical operation of the compound crusher, the electrical control is relatively simple (especially the low-power type), generally a single unit works independently, in the non-professional operation situation, the failure to deal with the occurrence of failure is not timely, relatively speaking, the failure is repeated The expansion rate has increased.

Solution

First, choose the correct type of rotor bearing. Double-row radial spherical roller bearings have the advantages of strong load-bearing capacity and good self-aligning performance, so this type of bearing is often used as a rotor bearing when selecting. In addition, the calculated life of the bearing should be 5000~10000h.

Second, it is necessary to improve the bearing force of the composite crusher. The impact load acting on the bearing depends on the impulse acting on the rotor and the support flexibility of the bearing seat. Increasing the support flexibility of the bearing seat will reduce the impact load on the bearing. For this reason, we can add a rubber plate of appropriate thickness between the bearing seat and the support frame to improve the support flexibility of the bearing seat. Due to the addition of the rubber plate, the support flexibility is increased, which absorbs a part of the vibration energy, improves the force condition of the bearing, and achieves the purpose of extending the service life.

Operation precautions

1. If the equipment has an emergency failure during operation, it can be stopped first. Do not drive forcibly until the fault is eliminated.

2. If electrical equipment fails, the electrical personnel should be exempted from responsibility.

3. When you need to enter the internal inspection of the machine, you must first pull out the power switch and hang up a sign for maintenance. Before the inspection, the materials in the upper part of the machine should be cleaned to prevent falling and hurting people. Before the test is completed, the upper cover must be covered and the bolts must be tightened.

4. All safety devices must be complete and firm. When the contact signal and communication equipment fail, the crusher cannot be started