Grading barrel of dry type ball-milling system

Abstract

The invention relates to a dry-type ball-milling system, in particular to a grading barrel of a dry type ball-milling system. The grading barrel of the dry type ball-milling system comprises a hollow barrel, wherein a feeding tube is arranged on the upper part of the barrel; a ball-milled material enters a cavity of the barrel through the feeding tube; an air inlet tube is arranged on the lower part of the barrel; air enters the cavity of the barrel through the air inlet tube; by a negative-pressure device arranged at the top end of the barrel, air of the outside enters the cavity of the barrel from the air inlet tube; the air entering the cavity of the barrel blows the lighter material of the cavity to the top end of the barrel from bottom to top, then the lighter material flows out, and a heavier material flows out from a discharging opening formed in the bottom end of the barrel from top to bottom. By the negative-pressure device, the air of the outside is sucked into the grading barrel, the lighter material in the grading barrel and the heavier material can be graded by the air, and the purpose of improving quality uniformity of a finished product is achieved; and moreover, the finished product with appointed particle size can be collected by adjusting the suction force of the negative-pressure device, and adaptation of the ball-milling system is greatly improved.

Description

technical field [0001] The invention relates to the technical field of a classification cylinder device and intelligent control equipment for material classification, in particular to a classification cylinder of a dry ball mill system. Background technique [0002] Due to their excellent performance, ball mills and pulverizers have won the reputation of researchers and business owners in the field of material ultra-fine and grading. With the sudden emergence of new energy and new material industries, the market demand for the above-mentioned machines is increasing rapidly. Increased, and its performance and quality requirements are becoming increasingly stringent, especially in developed countries such as Europe and the United States have more stringent requirements. Most of the existing ball mills are wet ball mills, which can be directly fed by material pumps; for the existing dry ball mills, the feeding method is either natural feeding by gravity or negative pressure fee...

AI Technical Summary

Problems solved by technology

In this way, the particle size of the product is not uniform because the material after ball milling is not classified.

Moreover, in the closed-circuit powder selection system of the dry-process ball mill that is actually used today, the air flow and the material flow out of the mill show a separate operation, the air flow fails to achieve circular flow, and there are many sources of dust running and leakage, which makes it difficult to achieve comprehensive environmental protection. The powder selection equipment for finished products is complex in structure and difficult to operate; there are many auxiliary equipment used in the system, and the one-time investment is large; the management and maintenance costs and operating costs are high; it is difficult to select all the finished products generated in the mill in time. Really fully solve the "over-grinding phenomenon" of the material in the mill

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