Activation device for adjusting throughput of ball mill

Abstract

The invention discloses an activation device for adjusting throughput of a ball mill. The activation device is composed of a plurality of activation plate units with same structures; each activation plate unit structurally comprises an open pore, a grinding body supporting table and a U-shaped groove, wherein the U-shaped groove is internally provided with two striker plates, the length of the striker plates is greater than that of the open pore, the two ends of each striker plate are supporting by an adjusting device respectively, the adjusting device moves the positions of the striker platesto change the area of the shielded open pore, thereby adjusting the throughput in a cylinder body. The activation device for adjusting the throughput of the ball mill has the advantages that the areaof the open pore is arbitrarily adjusted within the range of 0-100% according to operation requirements, the flow rate and residence time of a material in the cylinder body are effectively controlled, the proportion of a ball material in the cylinder body is improved, the grinding efficiency is improved, the output is increased by about 10%, and the power consumption is reduced by 5% or above; the material is prevented from 'rough processing' and 'over-grinding', and the qualification of the fineness of a finished product is improved by 10%-20%; the adjustment is flexible, the operation is simple, the cost is low, and the wear resistance is good.

Description

Technical field [0001] The patent of the present invention relates to an activation device for a ball mill, in particular to an activation device for adjusting the material throughput of the ball mill. Background technique [0002] Ball mills are the main equipment in the field of grinding. Compared with roller mills and roller presses, ball mills have the characteristics of strong adaptability to materials, simple structure and convenient maintenance. Ball mills are still widely used in the field of grinding. [0003] The working principle of the ball mill: When the barrel of the ball mill rotates, the grinding body in the barrel is raised to a certain height under the combined action of centrifugal force and frictional force. Part of the grinding body leaves the circular orbit and falls in free fall along the parabolic trajectory to generate impact force and crush the material. The rest of the grinding bodies perform a falling motion, and the relative sliding between the grindin...

AI Technical Summary

Problems solved by technology

The opening area of ​​the activation plate unit in the prior art is fixed, which cannot effectively control the residence time of the material in the cylinder, resulting in almost the same residence time of different materials in the cylinder. Although the activation device can play the effect of blocking the material, the The size of the opening of the activation plate unit cannot be effectively adjusted according to the actual operation in the cylinder, and the flow rate of the material in the cylinder cannot be effectively controlled, resulting in the deviation of the ball material ratio in the cylinder from the optimal state, which in turn affects the crushing and grinding efficiency of the material by the grinding body. The power consumption of system grinding increases accordingly

At the same time, because the activation plate unit in the prior art cannot effectively control the residence time of the material in the cylinder, some finished product particles have a residence time that is too long and cannot be discharged from the cylinder in time, resulting in the phenomenon of "over-grinding", and the content of particles smaller than 3 μm in the finished product Increase, the particle content of 3μm~32μm decreases, the strength of finished cement decreases, the water demand increases, and the cement performance deteriorates

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