Jaw Crusher - Crusher Great Invention Of The Industry
Jaw crusher is crushing equipment there earlier
, because of its simple structure, robust, easy maintenance and repair and construction costs, less production and, therefore, until now still widely in metallurgical, chemical, building materials, electricity, transportation and other industries sector, for crushing strength in the range of 147 ~ 245MPa crude ores and rocks, in, fine. In recent years, in order to meet the metallurgical, mining, construction and other industries with high crushing strength, high hardness of low carbon ferrochrome needs, specifically developed strong jaw crusher.
Jaw Crusher is generally divided into a compound pendulum jaw crusher and jaw crusher simply put two, mainly for coarse, medium broken. In recent years, appeared for the crushing of the Jaw Crusher and crushing high strength, high hardness, low carbon ferrochrome crusher. As we all know, Jaw Crusher jaw plate main problem is low life.
1) design and choice of material
At design time, dynamic E and E of the broken board should be set teeth on the tooth peak valley. Thus, when breaking materials in addition to compression, there are bending and breaking of materials easier. To enhance the life of broken plates, small and medium sized crusher broken down into a board design symmetrical shape, a U-turn immediately after the Department of wear use; large
jaw crusher broken symmetry board designed a few pieces of each other in order to wear after exchange use the broken board. Broken plates can be selected white cast iron material. Large white cast iron hardness, good wear resistance, the source is easy and cheap; drawback is brittle, easily broken, short life. In order to improve the life of broken boards, materials with more than 12% manganese steel manganese better common is ZGMn13. Manganese steel toughness, although the hardness is not high (about 210 HB), but because of a cold hardening characteristics, under pressure and will continue to be reinforced, so they work wear has been strengthened constantly, until the wear and tear to not Use only scrapped. Manganese steel casting broken board after going through the tough water treatment, water treatment operations generally tough and quenching the same, that is broken is cast out of manganese steel plate heated to 1 000 ~ 1 100 in the water after the rapid cooling. Ren treated water can be uniform microstructure, the microstructure and to fixed to avoid the use of the natural deterioration of the phase change not needed. Manganese disadvantage is more expensive, but life, cost, general considerations, ZGMn13 than the white cast iron long life, low cost.
2) assembly
Assembly, the broken plate must be securely attached to E-board, should be pad level between the two, broken plates and the jaw between the use of soft metal (such as lead, zinc, etc.) for gaskets and bolts tightened. Crusher work, broken plate should not be loosening, or easily broken or worn broken plate, reducing the life of broken plates. Therefore, the assembly must be installed, broken plates, thus extending the life of broken plates.
Use process improvement to enhance the life of broken plate in the production process, broken plates and materials directly, broken very great, especially when broken material hardness greater, leading to installation of bolts broken plate vibration, nut loose, so broken plate wear and greatly increase the noise, severe broken off or broken plate to equipment downtime, affecting the normal production. In such cases, only the boot before tightening bolts, nuts is not completely solve the problem, according to the actual situation on site specific analysis of specific problems, try to take practical solution to the problem. For example, you can use spring anti-vibration device to resolve broken loose at work in the loose board, thus prolonging the life of broken boards and improve efficiency. Specific approach is to use spring anti-loose bolts and self-made compact device, which from the inside spring cover, spring, spring cover is composed of outside, to wear the device in the bolt tightening nut, nut because spring is compressed to a certain degree, have a very strong vibration effect produced by the tremendous force of the bolt broken loose by the spring tension automatically power up, so loose bolts Bu Zhiyu, thus extending the life of broken plates, to increase productivity. In short, the process can be used to target specific solutions to specific problems, to prevent the broken plate loosening, wear increased, broken and so on, thereby extending the life of broken plates, reduce costs and enhance efficiency.
3) empirical results
E-broken broken board to enhance life from material selection, assembly, use the process to improve the aspects that can enhance a good life E-broken broken plate,
jaw crusher to improve production efficiency, reduce production costs.
by: sunshine20520
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