High-efficiency mill

Abstract

The high-efficiency mill includes pedestal, feeding bin, pulverizing part and driving part. The pulverizing part has motor driven rotor with central material cavity, communicated impact material cavities and several impact grinding cavities on the rotor body; and cylinder around the rotor set coaxially and rotating in opposite direction to the rotor. The material fed through the feeding bin is emitted by the impact cavities to collide with material inside the cylinder, returned by the cylinder to inside the impact grinding cavities and re-emitted to inside the cylinder, so as to be pulverized through high speed impact, collision and grinding. The present invention has the features of high pulverizing efficiency, less investment in apparatus and low processing cost.

Description

Technical field [0001] The invention belongs to the material crushing and grinding technology, and mainly proposes a high-efficiency fine grinding. Background technique [0002] my country is the largest cement producer in the world. In 2002, the cement production amounted to 700 million tons. The raw meal grinding, cement grinding, and coal grinding of cement plants all use ball mills. There are hundreds of thousands of ball mills used in various industries across the country. . As a mature product, ball mill has the advantages of high equipment operation rate, reliable operation, easy control of product fineness (<200 mesh), and relatively stable output per hour. However, its shortcomings are: the volume of the ball mill is relatively heavy, and a large-capacity motor is required to drive hundreds of tons of cylinders and nearly 100 tons of steel balls to move. The operation efficiency of the mill is very low (about 2%), and the yield is low. , Ball mill products can o...

AI Technical Summary

Problems solved by technology

But its disadvantages are: the volume of the ball mill is relatively heavy, and a large-capacity motor is required to drive hundreds of tons of cylinders and nearly a hundred tons of steel balls to move. The mill operation efficiency is very low (about 2%), and the output is low. , the product of the ball mill can only reach 200 mesh

That is to say, the existing ball mill has the disadvantages of low efficiency, bulkiness, large one-time investment, high energy consumption, high cost and limited product fineness.

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