Forced adjustable discharge device used for autogenous mill

Abstract

The invention discloses a forced adjustable discharge device used for an autogenous mill. The forced adjustable discharge device is arranged on the inner wall of an end cover at the discharge end of a cylinder of the autogenous mill. A discharge hollow shaft is arranged at the center of the end cover, a plurality of forced discharge blades are arranged on the inner wall of the end cover, rotate in the same direction and are distributed in the circumferential direction of the discharge hollow shaft, and the rotating directions of the forced discharge blades are set into a manner that when the cylinder of the autogenous mill rotates to discharge materials, the forced discharge blades discharge the materials to the discharge hollow shaft. The forced discharge blades are provided with adjusting windows, the head ends of the forced discharge blades are close to the outer edge of the end cover, the tail ends of the forced discharge blades are connected with a grid sieve plate, the materials smaller than sieve holes in the grid sieve plate pass through the sieve holes and fall into the discharge hollow shaft through a guide cone which is arranged in the discharge hollow shaft, and spiral blades which are arranged on the inner wall of the discharge hollow shaft discharge the materials out of the autogenous mill. According to the forced adjustable discharge device, by means of the cooperation of the sizes of the adjusting windows in the forced discharge blades and the sizes of the sieve holes in the grid sieve plate, the adjustment of product particle sizes and the optimization of the comminution working condition of the autogenous mill are achieved.

Description

technical field [0001] The invention relates to the field of electrolyte autogenous mills in the electrolytic aluminum industry, in particular to a forced adjustable discharge device for autogenous mills. Background technique [0002] In the production process of electrolytic aluminum, the electrolyte crust produced during the cleaning of the electrolytic tank and the cleaning of the anode needs to be ground and returned to the electrolytic tank for re-use. At present, dry method and air-swept autogenous mill technology are mostly used as crushing equipment with large crushing ratio to realize the purpose of simplifying the crushing process. Due to the structural characteristics and working principle of the dry method and air-swept autogenous mill process, the grinding products are too fine to meet the needs of subsequent processes. Therefore, there is an urgent need for an autogenous mill capable of adjusting the particle size and particle size distribution of the discharg...

AI Technical Summary

Problems solved by technology

Due to the structural characteristics and working principle of the dry method and air-swept autogenous mill process, the grinding products are too fine to meet the needs of subsequent processes.

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