Grade lifting device of roller mill used for processing steel slag

Abstract

The invention relates to steel slag processing equipment, in particular to a grade lifting device of a roller mill used for processing steel slag. The grade lifting device comprises a bracket, wherein a motor and an outer tube are arranged on the bracket; the bottom end of the outer tube is provided with a bottom plate which is fixedly connected with the inner wall of the outer tube; the top end of the outer tube is provided with a top plate; the lower part of the outer tube is provided with a feeding hole and a second discharge hole; the upper part of the outer tube is provided with a first discharge hole; the inner part of the outer tube is provided with a sieve tube; a cavity is formed between the outer wall of the sieve tube and the inner wall of the outer tube; the lower end of the sieve tube is fixedly connected with the bottom plate; the lower part of the sieve tube is provided with a feeding tube which communicates with the feeding hole; the top part of the sieve tube is provided with a discharge tube which communicates with the first discharge hole; a rotary shaft coaxial with the sieve tube is arranged in the sieve tube; the lower part of the rotary shaft is rotatably connected with the bottom plate; the upper part of the rotary shaft is rotatably connected with the top plate; the lower end of the rotary shaft is connected with the motor; and the rotary shaft is provided with a spiral blade which is in clearance fit with the sieve tube. The grade lifting device has the beneficial effect of improving the production efficiency.

Description

technical field [0001] The invention relates to steel slag processing equipment, in particular to a roller mill classifying and lifting device for processing steel slag. Background technique [0002] In the grinding process of steel slag, roller mills are generally used for grinding. The existing operation is generally to directly put the steel slag particles formed by primary crushing into the roller mill, and the roller mill needs to grind the steel slag particles several times to make the steel slag reach the required particle diameter. However, when the steel slag particles are circulating, the steel slag particles that have been ground by the roller mill are directly put back into the roller mill, so that the finer particles in the steel slag are repeatedly ground, which hinders the grinding of larger particles by the roller mill , so that the grinding efficiency of the roller mill is low. Contents of the invention [0003] The purpose of the present invention is to...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a roller mill classification lifting device for processing steel slag, to solve the problem that the roller mill in the prior art does not classify the steel slag when grinding the steel slag, so that the smaller steel slag particles are repeatedly processed Grinding, which leads to the problem of low grinding efficiency of the roller mill

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