Impact Crusher is based on single-stage crusher evolved, in the era of innovation, the requirements for materials to promote the birth of the crusher, and this can not but admire the research crusher people's wisdom. Let's talk about the performance and use of the impact crusher.
When the material enters the action zone of the hammer, it is firstly crushed by the first impact of the hammer, and at the same time, the kinetic energy is obtained, and the counterattack is rushed at a high speed. After the cone crusher material collides with the counterattack plate and is broken again, it is bounced back to the action area of ​​the hammer and is again impacted by the hammer. This is repeated until it is broken into the desired particle size and discharged out of the machine.
The impact crusher utilizes the high-speed impact of the plate hammer and the rebound action of the counter-attack plate, so that the material is subjected to repeated impacts to break the machine. The hammer is fixed on the rotor rotating at a high speed, and the magnetic separator and the counter-attack plates are arranged at different angles along the crushing chamber.
Compared with the hammer crusher , the impact crusher has a larger crushing ratio and can more fully utilize the high-speed impact energy of the entire rotor. However, since the plate hammer easy to wear, it is also limited in application crushing of hard materials, usually used in pieces, crushing or finely divided quartz, dolomite, limestone, coal, calcium carbide ,, iron sulfide ore, gypsum and chemical raw Brittle materials below medium hardness.
First of all, let's first understand what is the production capacity of the crusher. Bucket hoist The capacity of the crusher refers to the amount of crushed material per unit time. The unit is generally used: ton / hour. The amount of crushed ore in the unit time directly determines the output of the final beneficiation process. Therefore, improving the production capacity of the crusher is the top priority of the mineral processing industry. First of all, we should have a general understanding of the factors affecting the production capacity of the crusher in order to be targeted.
Generally speaking, there are many factors that affect the production capacity of the crusher. Generally speaking, there are six factors. I will describe the six factors and propose corresponding solutions.
1. The hardness of the material. The harder the material is, the more difficult it is to break, and the more severe the wear on the equipment. The speed of breaking is slow, of course, the crushing ability is small. This requires us to be moderate in the choice of materials.
2. The humidity of the material, that is, when the moisture contained in the material is large, the material is easy to adhere in the crusher, and is also easily blocked during the feeding process, resulting in a reduction in the crushing capacity. To solve this problem, firstly, the material temperature should be strictly controlled when the material is selected. If the temperature of the selected material is too large, the sunshine or air drying method can be used to reduce the percentage of moisture in the material.
3. The fineness of the material after crushing, the fineness requirement is high, that is, the finer the material required to be broken, the smaller the crushing ability. In this respect, depending on the specific requirements of the concentrator, if there is no special requirement, the fineness of the material is generally set to medium and fine.
4. The composition of the material, the more fine powder contained in the material before crushing, the more the crushing is affected. The belt conveyor is easy to adhere to affect the transportation. Therefore, materials with a high content of fine powder should be sieved once in advance. The fine powder should be filtered out of the material as much as possible to avoid affecting the normal operation of the crusher.
5. The viscosity of the material. That is, the greater the viscosity of the material, the easier it is to adhere. The material with high viscosity will adhere to the inner wall of the crushing chamber in the crusher. If it cannot be cleaned in time, it will seriously affect the working efficiency of the crusher and seriously affect the normal operation of the crusher. Therefore, when selecting materials, it must be noted that the viscosity of the material should not be too large.
6. The better the wear resistance of the crushed parts (hammer head, jaw plate) of the crushing equipment, the greater the crushing ability. If it is not worn, it will affect the crushing capacity. In this regard, it is necessary to regularly repair the broken parts of the crusher. If it is damaged or damaged, it should be replaced in time to avoid affecting the normal operation of the crusher.
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