Ring roll mill apparatus

Abstract

The invention relates to a ring roller milling device, comprising a mill ring, a roller, a roller shaft, a roller arm, a mill shell, an oil cylinder and a reductor connected together. One end of the roller is fixedly connected with the roller arm which is connected with a fulcrum shaft, and the other end is connected with the roller arranged in the mill ring. The mill ring is a ring provided with a bottom; a curved groove is arranged on the inner wall circling the ring, and the groove structure matches the roller; during no-load operation, the central line of the roller is vertical with the bottom surface of the mill ring, and the roller is tangent with the curved groove of the inner wall of the mill ring; the distance of shaft centers is equal to the maximum diameter of the roller. The invention has the advantages of high compactness of the burden bed and low material fluidity; burden-bed milling of powder material can be realized and the milling efficiency is relatively high.

Description

technical field [0001] The invention belongs to the technical field of grinding of inorganic non-metallic materials, and in particular relates to a ring roller mill device for grinding fly ash. Background technique [0002] Roller mill is the material bed grinding equipment widely used in the cement grinding system at present. It is characterized by low energy consumption of grinding, which is about 60% of ball milling, but it is not suitable for processing powdery materials, because the flow of powdery materials Good performance, it is difficult to form a proper material bed. [0003] In existing roller mills, please refer to figure 1 , the principle of ordinary roller mill is similar to the agricultural roller, the difference is that the position of the roller is fixed and the disc rotates, and the roller pressure is increased by means of an oil cylinder; the surface of the disc is generally horizontal, and the material is fed to the center of the disc; in order to make t...

AI Technical Summary

Problems solved by technology

This kind of roller mill will not cause the centrifugal movement of the material, and the running speed can be faster, but it is still only suitable for bulk materials; the powder materials will be dispersed immediately when they encounter the bottom-up airflow in the mill, and it is difficult to direct them into a certain place. location, making it difficult to crush

[0005] The purpose of the present invention is to make up for the inability of existing roller mills to process powdery materials, and provide an energy-saving grinding equipment suitable for further grinding of powdery materials, especially focusing on reducing the grinding energy consumption of fly ash and promoting Comprehensive Utilization of Fly Ash

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