Grinding barrel of large continuous planetary ball mill

Abstract

The present invention relates to pulverizing apparatus, and is especially grinding barrel of one continuously producing planetary ball mill with great flow rate. The planetary ball mill has one cylindrical grinding barrel and features the ratio between the effective inner diameter of the grinding barrel and its effective length being 1 to 0.8-1.5. The properly controlled ratio can avoid the overheat of the ground material to ensure high grinding quality. The present invention has low material consumption and low power consumption, and is suitable for continuous great flow production.

Description

technical field [0001] The invention relates to a grinding equipment, in particular to the planetary ball mill technology for large-flow continuous production. Background technique [0002] Ball mill is a large-scale powder processing industrial equipment, widely used in building materials, electric power, metallurgy, mining, chemical industry and other fields. The total amount of powder processed by it is more than 2 billion tons in China, including 800 million tons of cement, 960 million tons of pulverized coal, 80 million tons of blast furnace slag, and 200-300 million tons of others, which play a relatively large role in the national economy. . However, due to the low working efficiency of the ball mill (the effective power of crushing only accounts for less than 10% of the total power of the mill), and the high wear and tear on the hard alloy steel, the average energy consumption per ton of powder is 30-50 kwh 60 to 100 billion degrees, the average wear of steel balls...

AI Technical Summary

Problems solved by technology

However, due to the low working efficiency of the ball mill (its crushing effective work only accounts for less than 10% of the total power of the mill), and the high wear and tear on the hard alloy steel, the average energy consumption per ton of powder is 30-50 kwh 60 to 100 billion degrees, the average wear of steel balls, forgings and mill liners is 0.5kg / t, and the annual consumption of alloy steel is about 1 million tons. Therefore, how to improve the crushing efficiency of ball mills and reduce the wear of alloy steel is not only in line with industrial policies. It not only saves energy and materials, but also obtains considerable economic and social benefits.

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