Improved ore discharging device of grid type ball mill

Abstract

The invention relates to the technical field of grid type ball mills and particularly relates to an improved ore discharging device of a grid type ball mill. The improved ore discharging device comprises a grid plate and a central lining plate, wherein the grid plate is pressed on an end cover of the ball mill; the end cover is provided with a hollow journal; a horn-shaped guiding column is arranged at the middle position of the central lining plate; a groove is formed in the end surface, close to the grid plate of the journal; a connecting rod is vertically arranged on the central lining plate and is connected with a ring-shaped fixed piece which is embedded into the groove; balls are arranged between the inner and outer surfaces of the ring-shaped fixed piece and the groove; the central lining plate and the grid plate are fixed by bolts. The improved ore discharging device has the advantages that the structure is simple and the use is convenient; when the grid plate rotates, the central lining plate is driven to rotate together, and generates rolling friction with the end surface of the journal by the balls in the rotating process, so that the friction force between the central lining plate and the grid plate is greatly reduced, the wear rate is low, the life cycle is long, the maintenance workload and the maintenance cost are reduced and the effective use rate and the production efficiency of the ball mill are improved.

Description

technical field [0001] The invention relates to the technical field of grid-type ball mills, in particular to an improved ore discharge device for grid-type ball mills. Background technique [0002] Grid type ball mill is used to grind various ores and other materials, and is widely used in various sectors of the national economy such as mineral processing, construction and chemical industry. The central disk of the discharge end of this type of ball mill is buckled on the end cover with a grid plate, and the grid plate is fixed on the discharge end cover with lag screws. There is a large friction between the grid plate and the central disk. After a period of time, both the grating plate and the center disc will wear to a certain extent, causing the gap between the two to gradually increase until the center disc falls off, causing equipment failure and shutdown for maintenance, which not only wastes materials but also affects production. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

The central disk of the discharge end of this type of ball mill is buckled on the end cover with a grid plate, and the grid plate is fixed on the discharge end cover with lag screws. There is a large friction between the grid plate and the central disk. After a period of time, both the grating plate and the center disc will wear to a certain extent, causing the gap between the two to gradually increase until the center disc falls off, causing equipment failure and shutdown for maintenance, which not only wastes materials but also affects production

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