Grain mill

Abstract

The invention provides a grain mill, which comprises a grinding mechanism (2), wherein the grinding mechanism (2) comprises a fixed mill (26) and a rotary mill (25); the fixed mill (26) and the rotary mill (25) are provided with a grinding tooth set consisting of grinding teeth respectively; each grinding tooth comprises a first toothed side face, a second toothed side face and a toothed top surface between the first and second toothed side faces; and the toothed top surface of the grinding tooth of the fixed mill is matched with the toothed top surface of the grinding tooth of the rotary mill. The grain mill effectively changes the line contact between the grinding teeth of the prior art into the surface contact so as to greatly improve the grinding effect, and particularly, the grain mill of the invention can not only be suitable for the fragile material but also have the capacity of grinding the deformable plastic material.

Description

technical field [0001] The invention relates to material grinding and processing equipment, and more specifically relates to a multifunctional mill capable of grinding not only brittle materials but also plastic materials. Background technique [0002] Mills are widely used in the grinding and processing of materials (such as ores, waste plastic materials, etc.) in the fields of building materials, metallurgy, chemicals, mining, food, waste recycling, etc. [0003] In existing mills, there is generally a line contact between the fixed mill and the rotary mill. Specifically, the grinding teeth of the existing pulverizer are composed of two side tooth surfaces. During grinding, the material is cut through the intersection line formed by the intersection of the two side tooth surfaces; and, in the existing pulverizer, All grinding teeth extend in the same direction on both fixed and rotary grinding. Therefore, for plastic materials (such as plastics, etc.), since they are eas...

AI Technical Summary

Problems solved by technology

Therefore, for plastic materials (such as plastics, etc.), since they are easily deformed when processed, it is difficult to cut them into pieces by the cutting method of the above-mentioned line contact.

Therefore, the above-mentioned wire cutting method makes the existing mills only able to process brittle materials, such as ore, slag, coal, beans, etc., but not easy to process easily deformable plastic materials

[0004] In addition, the existing mills cannot realize the sieving of the processed materials according to the particle size, and cannot automatically send the semi-coarse materials that need to be reprocessed back to the grinding mechanism of the mill for reprocessing

That is to say, the existing mills cannot realize the automatic screening and recycling processing of the processed materials.

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