Learning Skill of Crushing Theory is Necessary for Crushers
The crushing and grinding theory evolves with the progress of industrial level. The crushing and grinding process is closely related to production in each and every industrial sector, such as metallurgy, non-metallic mining, building materials, coal, environment protection field, chemistry, food, cosmetics, papermaking, microelectronics, optics, biology, medicine, and ceramics and so on. Due to the rapid development of modern S&T and economy, solid theoretical foundation is laid and superior research environment is provided. In recent years, researchers have conducted study on crushing and grinding equipment from different perspectives. Fruitful achievements have been attained by various researches on the impacting, squeezing, grinding, and exploding role in crushing equipment.
The basis opinion of the lamination crushing theory is that during every moving cycle of the materials, the adjacent particles will change their relative position, which will result the constant changing of the mutual acting force and vector. In this way, it will realize the purpose that the load of the crushed materials changes their direction. At the same time, it will offer mandatory autogenous grinding, as a result of which, the hardest particles with the least defects in structure will crush the particles with weak key between the adjecent grain. In the particles with the same hardness, the particles coincide at the shear froce and dislocation sliding force will be crushed.
Lamination crushing is that the crushing of rock particles realize not only in particle and the lining plate, but in particles and particles. Its characteristic is that the effective crushing zone in the cone crusher in the crushing chamber will form multi-particle layers with high density, so that it will put all the sufficient crushing force on the materials in order to make full use of the lamination crushing and secondary crushing to gain high crushing ratio. At this time, even for th discharging mouth with big gaps, it can still produce fine products. In addition, those needl and flaky rocks with low hardness will be first crushed, thus producing products with high screening rate and good granularity. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like cement plant, Henan Hongxing is always doing the best in products and service.china dryers:http://www.crusher-machine.com/24.html
As a new theory of selective crushing, the workers should consider the structural defect and nonuniformity inside the rock materials. Disaggregating all phase with the least newly-born surfaces is the essence of selective crushing. On the basis of this, the mining machinery company manufacturing crushing and grinding equipment such as hammer crusher should research the selective crushing methods and research and develop new crushing technology and equipment that are able to process different materials.
To sum up, the principlea used for properly organizing the crushing are as follows:
1. Massive materials will sustain the volume pressure formed by the part load in different idrections in the thick layers.
2. In order to produce stress on the crystal and the edge of the crystal, the massive materials should repeatedly bear the composite load or crushing force including cutting, bending and twisting.
3. The load should be the pulse that has maximum peak.
4. As for the strength limit and fatigue limit in the defect area, the crushing force should be strictly restricted to a degree.
5. During the aperture time loading crushing cycle, the materials can move relatively and rearrange their mutual position in order to timely separate the particles that conform to the product requirement from the materials layers, and at the same time, to control the density of the materials layers.
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