The Application of Various Types of Pulverizer Machine


In the process of surface grinding, small pieces break off from a particle surface, which then gradually forms many fine particles. During grinding, the particle sizes often follow a bimodal distribution

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How the Pulverization Process WorksIn pulverization, the application of an external force to a particle causes it to elastically deform and then wherever the stress limit of the particle is exceeded, cracks occur at points. It is thought that the particle is destroyed by the propagation of cracks, thus completing the process of pulverization.2

In the pulverization process, there are two types of particle destruction, which are “surface grinding” and “volume grinding”.

In the process of surface grinding, small pieces break off from a particle surface, which then gradually forms many fine particles. During grinding, the particle sizes often follow a bimodal distribution. This surface grinding in friction grinding is dominant.3, 4.

Crushing occurs not at the particle surface but in the whole part, in the case of volume grinding. Subsequently, the particle is broken up into several pieces, and this cycle is repeated until the particle gradually turns into fine particles. In compression pulverization and impact pulverization, volume grinding is dominant. 3, 4

The use of various types of pulverizer machine for powder:

  1. Large-scale pulverizer (equipment with higher output under the premise of the same crushing fineness) are mainly applicable to the crushing and processing of mineral products in industries such as metallurgy, building materials, chemical industry, mining, expressway construction, water conservancy and hydropower, refractory materials, and iron and steel industries.
  2. Small-sized pulverizer (equipment with lower yield under the same sizing fineness) are mainly used for crushing materials in food, chemical, pharmaceutical, greening, sanitation, and other industries.
  3. The coarse crusher is mainly used for crushing and pretreating operations in various industries. The main function of the crusher is to process larger diameter materials (5-10 cm) into smaller diameter granular materials (5-10 mm in diameter).
  4. The crusher is mainly used for medium and fine crushing operations in various industries. Its role is to process granular materials into medium-fine powders that require a diameter for subsequent processing or as a finished product.
  5. The ultrafine crusher is mainly used in ultrafine crushing operations in most industries. It crushes the materials after crushing to achieve the required material diameter, and is mainly used for the processing of raw materials for high-end products.

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