1. Material status
This is mainly about the humidity and temperature of the ultrafine grinder. Unlike wet crushing, when dry crushing, if the moisture content of material exceeds 3%, the disposal of crusher will drop sharply, especially dry ball mill. When dry crushing is used for wetting materials, it is advisable to stop dryness beforehand and keep moisture below 1%.
2. Material properties
Material properties Material properties include grindability and density. The crushability of materials has a great influence on disposal ability. Usually, it is based on the practical results of disposing similar materials to decide which kind of crusher to choose, but the common method is to use the crushing results obtained from experiments to scale up the calculation; or to investigate the work index of raw materials, find out the power consumption of crusher to dispose of each ton of materials, and then decide the specifications of the crusher required.
3. Particle size of materials
Different from the crusher, the feed size has a great influence on the crushing capacity of the crusher, which is one of the main factors affecting the disposal ability of the crusher. Therefore, in the crushing stage, the feed size should be as fine as possible. Because the energy consumption in the crushing and crushing stages is different, the energy consumption in the crushing stage is much less. It is important to apply the criterion of "more crushing and less grinding" in crushing operation, so in the crushing stage with less energy consumption, fine products should be crushed as far as possible to reduce energy consumption in crushing operation.
4. Shredding Method
The crushing methods are wet and dry. The wet crusher is limited to rotary crusher and tower crusher which use steel balls or other media. There are many kinds of dry crusher. Which type of wet or dry crushing is adopted is mostly controlled by the operation before and after the crushing operation, besides, it is related to the number of crushing segments and the choice of crushing process.
5. Grinding Ability
Crushing ability is the key factor of choosing crusher. Even if products with the same granularity can be obtained, they need to be crushed according to the required crushing ability, and then the types, specifications and crushing methods of the crusher should be selected appropriately.
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