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Detailed explanation of compound crusher

Compound crusher is abbreviated as compound crusher. It is also called vertical crusher and vertical impact crusher because of its vertical shaft-type up and down placement structure design. It is one of the general equipment in sand making production line and crushing production line. The composite crusher technology combines the technical advantages of similar crushers at home and abroad, and aims to save energy. The main technical parameters are designed and optimized to become a new type of fine crushing and coarse grinding products.

The compound crusher is widely used in the crushing of various ore, cement, gypsum, limestone, dolomite, quartz stone, coal gangue, refractory materials, bauxite clinker, emery, glass raw materials and other high-hard and special hard materials. It is widely used in the crushing of machine-made sand and various metallurgical slags. Compared with other types of crushers, it has higher profitability. It is currently the best model to replace cone crushers, counter-roll crushers and ball mills in the world.

Compound crusher picture

Compound crusher

Performance characteristics

a. The hammer and rotor of the compound crushing are rigidly connected. The inertia of the whole rotor is used to impact the material, which can obtain greater speed and kinetic energy, making it easier to crush and lower energy consumption.

b. The structure of the crushing cavity is large, so that the material has a certain movement space in it. The material is impacted and can be fully crushed after repeated blows.

c. High crushing efficiency, low energy consumption, and high qualified rate of sand formation.

d. The crushing ratio is large, which can reach about 15-20, which is beneficial to reduce the number of crushing sections, simplify the process flow, save investment and reduce production costs.

e. The structure is simple, easy to produce, and easy to operate and maintain.

f. The composite crusher adopts a new type of rotor design structure, which effectively enhances the working performance of the crusher.

g. New hammer head structure design, abandoning the traditional integral structure design, adopting combined structure design, only need to replace the severely worn parts, greatly improving the service life of the hammer head, effectively reducing the production cost and the replacement frequency of equipment wearing parts.

h. The counterattack plate of the material adopts a ribbed structure, because the sharp corners of the ribbed parts have high casting quality and hardness after heat treatment, and have strong wear resistance. With the gradual increase of the wear resistance surface, the wear size gradually slows down, and the counterattack The plate material is made of wear-resistant alloy steel, which is conducive to the extension of the life of the impact plate. The installation method of the impact plate is to push in the hinge from the side, and then tighten it by the fastening nut.

Introduction to the structural design parameters of important parts


1. According to practical experience, the allowable speed loss after the hammer hits the material varies with the size of the crusher. Generally, the allowable speed loss is 40-60%.

2. The hammers are arranged with six hammers at 60° intervals between the two partitions. The arrangement of the hammers in this way effectively utilizes the "space strike" ability of the hammers in the crushing cavity space, which can significantly improve the crushing efficiency and reduce Energy consumption.

3. The hammer head made of high chromium cast iron has a wear resistance several times higher than that of the high manganese steel hammer head.

4. The combined hammerhead design is used instead of the overall design. When a single hammerhead is severely worn, it is not necessary to replace all of it. You only need to replace the worn one, which can greatly reduce production costs and extend the life of the hammer.

Oil injection pipe

Lubricating oil is used for sliding bearings, and oil injection pipe must be used. The oil injection pipe can be a steel pipe with threads at both ends, one end is fixed on the machine cover, and one end is fixed on the machine base with a nut.

Sealing device

This machine adopts a felt ring type seal, using the rectangular cross-section felt ring embedded in the trapezoidal groove to press against the shaft to obtain the sealing effect of preventing the leakage of lubricating oil and the intrusion of foreign impurities and dust into the bearing chamber.

Guide plate inclination angle

In order to require a certain vertical falling speed for the feed, the inclination angle of the inlet guide plate should not be less than β=60°.

Protective door

In the process of material crushing, it is inevitable that a large piece of material that is difficult to crush will fall between the counterattack plate and the rotor, which will easily cause material blockage. In order to facilitate the clear blocking of materials and ensure the normal operation of the machine, a protective door is opened.

working principle

The movement state of the ground material in the compound crusher is divided into two parts, one is rotating in the cylinder, and the other is the state of throwing down after being brought to a certain height, that is, the state of throwing down. The main form of crushing in the former is grinding, and the main form of crushing in the latter is impact. The materials in the cavity are fully broken with the comprehensive action of grinding and impact.

The material enters the crushing cavity from the feed inlet, and is impacted, sheared, cleaved, and broken by the hammer, so that the particle size of the material is reduced. Self-impact crushing further reduces and balances the particle size of the material, so as to achieve the purpose of fine and uniform crushing of the material.

Compound crusher video

Price analysis

The price of the compound crusher is not expensive, mainly based on the model required by the user. The equipment has a wide range of applications, the equipment price is relatively affordable, and the cost is low. The market price ranges from tens of thousands to hundreds of thousands. The specific price Please click "contact" to get in touch with us.

Compound crusher manufacturer

As a large-scale composite crusher manufacturer, Zhongyuan Mine produces a composite crusher with reasonable structure design. The parts and accessories are made of high-quality materials and are built through various reasonable processing procedures. The quality of the equipment is relatively hard, with a large crushing ratio and energy consumption. Small size, stable operation, simple structure, convenient operation and maintenance, long service life, low equipment cost, etc., which can help users create higher economic benefits. It is very suitable for the processing and production of large, medium and small stones. Zhongyuan has perfect pre-sales After-sales and after-sales service can ensure the smooth production of users. Users are welcome to come and buy.

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