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  • What are the crushing methods of feed mills?EGg帝国网站管理系统

    As the name implies, the feed mill should be smashed, crushed, and processed into finished products to feed livestock and livestock. For example, the feed mill can corn, sorghum, wheat, beans, corn stover, peanut meal, sweet potato, peanuts. All kinds of miscellaneous grains such as dried skin and dried weeds, as well as coarsely crushed cakes, are crushed and then made into feed pellets for sale to feed manufacturers or farmers.
    First, the method of crushing the feed mill:
    1. Squeeze
    The material is crushed by the slowly increasing pressure between the two working members.
    Application: brittle material; if the material is tough and plastic, it can be extruded to obtain sheet products, cereals, etc.
    2, impact
     The material is crushed by the external impact force that is instantaneously received.
    Application: Most materials are available.
    3, broken
    Material is accepted between two working members
    It is broken by bending stress.
    Application: hard or brittle block or strip
    Material, such as bean cake.
     4, grinding
    Material in two relative sliding rough
    The working surface is ground into fine particles by friction, shearing, and the like.
    Application: small pieces or tough materials
    Physical principle of crushing method of feed mill
    Second, the mechanical properties of the material
    The mechanical properties of the material have a great relationship with the pulverization method to be selected. According to the relationship between strain and stress of materials and the difference of ultimate stress, the mechanical properties include the following five types:
    a. Strength - The strength of a material is its resistance to external forces. Usually, the force per unit area when the material is destroyed, that is, Pa, is expressed by the way of breaking the force, and can be classified into compressive strength, tensile strength, torsional strength, bending strength, shear strength, and the like.
    b. Hardness—Hardness is the ability of a material to resist the scoring or pressing of other materials into its surface. It can also be understood as the energy required to produce local deformation on a solid surface.
    c. Brittleness—brittleness is a property opposite to plasticity. From the aspect of deformation, when the brittle material is damaged by force, only minimal elastic deformation occurs before fracture, and plastic deformation does not occur, so its ultimate strength generally does not exceed Elastic limit.
    d. Resilience—The toughness of a material is the ability to absorb energy during plastic deformation under the influence of external forces. The greater the absorbed energy, the better the toughness and vice versa.
    e. Easy to grind (broken) - the strength and hardness alone are not sufficient to fully and accurately indicate the difficulty of material comminution, because the pulverization process is determined by the physical properties of the material, as well as the particle size, particle shape, and pulverization method. And many other factors. The so-called friability is the power consumption ratio required to pulverize a material from a certain particle size to a specified particle size under certain pulverization conditions.

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