Classified dust collecting device of tablets

Abstract

The invention relates to material screening equipment in pulping industry, in particular relating to a classified dust collecting device of grass tablets. The device comprises a spindle and roller brackets, one end of the spindle is connected with a motor via a transmission mechanism, the spindle is encircled by at least two layers of roller brackets along the circumferential direction, the roller brackets at each layer are wrapped with sieve plates, the aperture of the sieve pore of each sieve plate is radially tapered along the roller bracket from inside to outside, the hollow structures at the middle of the sieve plate at the innermost layer and between each two sieve plates serve as material channels, and the tail end of the each material channel is provided with a material outlet. The invention can realize dust collection and classification of tablets at the same time, saves power consumption, improves classification effect, achieves optimal combination of material preparation efficiency and material preparation yield, and is suitable for classified screening of grass tablets in the pulping industry.

Description

technical field [0001] The invention relates to material screening equipment in the pulping industry, in particular to a tablet grading and dedusting device used for grading and screening grass tablets. Background technique [0002] At present, the grass raw material dust collector used in the pulping industry is only equipped with one layer of screen, because it is difficult to accurately grasp the size of the screen hole, and improper setting leads to poor dust removal effect. If the sieve hole is too small, some dust and impurities cannot be removed, which increases the burden of the subsequent weeding process; if the sieve hole is too large, the raw materials will be lost together with the dust, resulting in low utilization rate of raw materials and greatly increasing production costs. In addition, the existing dust collector can only realize the dust removal function, and cannot classify according to the size of the blanks, resulting in different sizes of the blanks obt...

AI Technical Summary

Problems solved by technology

[0002] At present, the grass raw material dust collector used in the pulping industry is only equipped with a layer of screen, because it is difficult to accurately grasp the size of the screen hole, improper setting will lead to poor dust removal effect

If the sieve hole is too small, some dust and impurities cannot be removed, which increases the burden of the subsequent weeding process; if the sieve hole is too large, the raw materials will be lost together with the dust, resulting in low utilization rate of raw materials and greatly increasing production costs

In addition, the existing dust collector can only realize the dust removal function, and cannot be graded according to the size of the blanks, resulting in different sizes of the blanks obtained, and it is impossible to control the pass rate of the material preparation

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