Grade feeding device of roller mill used for processing steel slag

Abstract

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

Description

technical field [0001] The invention relates to processing equipment for steel slag, in particular to a roller mill graded feeding 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 before the steel slag reaches 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 object of the present invention is to prov...

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Problems solved by technology

[0003] The object of the present invention is to provide a roller mill classification feeding 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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