External-circulating ball roller way-type mill

Abstract

The invention discloses an external-circulating ball roller way-type mill. A central axis frame is mounted at the bottom of a base of a main machine; a milling ring is mounted at the upper part of the base; a hood cylinder is mounted on the end surface of the base; the lower part of a main shaft of the main machine is mounted inside the central axis frame; a milling roller device is arranged on the upper part of the main shaft of the main machine; the milling roller device comprises a roller dialing frame, and ball rollers which are uniformly distributed in the circumferential direction; the milling surface of the milling ring is a 1 / 4 circular surface; the roller dialing frame is coaxially and fixedly connected with the main shaft of the main machine; roller dialing blocks are uniformly mounted on the roller dialing frame in the circumferential direction; the roller dialing blocks clamp the back sides of the ball rollers; clamping surfaces of the roller dialing blocks are inwardly-concave spherical surfaces matched with the ball rollers; a discharge opening of the milling main machine is formed in the bottom of the base; scraping plates are arranged at the bottom of the base and are uniformly mounted on a scraping frame in the circumferential direction; the discharge opening is communicated with an external grading system through a pipeline. The external-circulating ball roller way-type mill adopts the ball rollers and the milling roller device, so that the external-circulating ball roller way-type mill is single in structure, low in cost, easy to repair and short in replacement and maintenance; a throwing operation of a shovel as well as the heavy milling roller device are avoided, so that the loss of total power is greatly reduced.

Description

(1) Technical field: [0001] The invention relates to powder processing equipment, in particular to an outer circulation ball roller mill. (two) background technology: [0002] Grinding machine is the most widely used equipment in mineral powder industry. [0003] The general structure of a main engine of a mill is as follows: the base of the main engine is equipped with a hollow central shaft frame, a coaxial grinding ring and a cover cylinder. The upper end of the main shaft outside the frame is equipped with a fixed roller frame (or called plum blossom frame), and the grinding roller assemblies distributed in the circumference are set on the fixed roller frame; during the revolution process of the grinding roller assembly, the grinding roller assembly is driven by centrifugal force. Each grinding roller keeps rolling contact with the grinding ring, and the mutual rolling between the grinding roller and the grinding ring crushes the mineral material. Under the negative pre...

AI Technical Summary

Problems solved by technology

[0006] For this reason, the present invention proposes an outer circulation ball roller mill with a new grinding concept, which mainly solves the problem of low processing efficiency of traditional mills

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