Unburned block brick raw material for crushing or grinding must, according to the crushing or grinding treatment, and ultimately a different product granularity, crushing and grinding operations can be divided into the following categories:

    Broken into:

    Crushing: After processing the material size greater than 100mm;

    In pieces: the particle size of the material after processing 30-100mm;

    Crushing: particle size after treatment of 3-30mm.

    Grinding is divided into:

    Kibble: particle size of 0.1-0.3mm after treatment;

    Finely ground: particle size of 0.1mm or less after treatment;

    Ultrafine grinding: post-processing particle size of less than 5-10μm.

    Unburned block brick in the production process, the general requirements for lime crushing and fine grinding. After the maximum block grain diameter and broken pieces of material grinding mill material before the largest block grain diameter ratio, called crushing ratio.

The maximum diameter of material, usually by 95% of the material, said sieve size. In general, the average crusher crushing ratio of about 3-30, and grinding machinery crushing ratio of about 300-1000 or 1000 or more. Fragility factor commonly used materials (or grindability factor), which is used to indicate the degree of difficulty of comminution. Frangible means to achieve the same coefficient of reduction ratio, the material is consumed by comminution comminution energy and the same number of standard materials of specific energy consumption. Friability coefficient is smaller, more easily broken material.

According to the characteristics of strength and internal structure of the material, can be requested such as extrusion, split off, cutting, grinding and crushing other ways broken.

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