According to the structural characteristics of the crushing machine, the crushing equipment can be divided into five categories,
Hammer mill: This machine uses high-speed, rotating hammer to break the material. The utility model has the advantages of simple structure, convenient operation, low price and wide adaptability, and almost all the feed can be crushed except for the high moisture feed. For example, cereals with higher starch content, higher oily cakes, and higher fiber shells and straws. At present, domestic and foreign feed mills generally use this type of machine.
Claw mill: It mainly uses impact and shearing action. The impact component is fixed with the equipment and has strong impact action. It is suitable for crushing brittle hard materials.
Disc mill (disk grinding): crushing feed by friction and cutting action. The working surface of the disc mill has a disc shape or a conical shape, and can be fixed by one disc, rotated by one disc, or rotated in opposite directions by two discs. The machine is suitable for pulverizing dry and oil-free feed, and can obtain finer finished products.
Roll mill: Commonly used two grinding rolls with the same diameter on the surface, the shearing and pressing action caused by the opposite or different speed rotation crushes the material, suitable for crushing grain feed, not suitable for crushing oil or containing A material with a moisture content greater than 18%.
Broken cake machine: The large oil cake is broken into small pieces, which are then crushed by a crusher. The breaking machine has two types: hammer type and counter roll type. The hammer type mechanical structure is simple, but the noise is large, and the mechanical structure of the roller type is complicated.
According to the product particle size: the crusher can be divided into coarse crusher, medium crusher, micro crusher and superfine crusher.
In the feed production enterprises, the medium crushed hammer mill is generally used as the main crushing machine.
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