A method for preventing blockage of ball mill grate plate

Abstract

The invention discloses a method for preventing the clogging of the grate plate of a ball mill. By increasing the area of ​​the center circle and the area rate of ventilation passing through the material, the center circle accounts for up to 20%-32% of the total area of ​​the entire grate plate, which can effectively solve the clogging of the ball mill problem, but also change the height of the ball blocking circle and the ventilation material area of ​​the grate plate, the central circle of the present invention is much larger than the traditional central circle area ratio, so even if the grate seam on the grate plate outside the ball blocking circle is completely covered The small ball and small forging are completely blocked, and it can also maintain a ventilation area rate of 9-11%, which is close to or equivalent to that before the technical transformation. The concentration is basically unchanged, thereby ensuring that the output per machine hour remains unchanged, and greatly reducing the energy consumption of the ball mill.

Description

technical field [0001] The invention relates to the technical field of ball mills, in particular to a method for preventing blockage of grate plates of ball mills. Background technique [0002] In the traditional technical means of ball mill application, it is to increase the filling rate of grinding body to meet the demand of increasing production. In traditional conventional technology, in order to increase the productivity of the equipment, the filling rate of steel balls and steel forgings is generally between 27% and 33%; the filling rate of ceramic balls is generally between 32% and 42%. Under such filling rate conditions, the area of ​​the central circle of the compartment plate or the discharge grate generally accounts for 7-9% of the area of ​​the entire grate; The total area ratio is generally between 8 and 13%. Under such a design, the ventilation area ratio of the center circle itself is between 12% and 18%. Although the designed ventilation area ratio of the e...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for preventing the clogging of the grate plate of the ball mill, so as to solve the problem of the clogging of the grate plate in the prior art mentioned above, which can fundamentally prevent the clogging and maintain the output, and avoid sieving balls for a long time to avoid the reduction of production due to clogging However, it is forced to shut down to eliminate clogging of grate seams or grate holes, improve milling efficiency, stabilize production and increase production, and achieve significant energy saving and consumption reduction effects.

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