Dry-wet spiral screening machine

Abstract

The invention discloses a dry-wet spiral screening machine which comprises a tank body provided with supporting feet fixed to the bottom. A first screening disc, a second screening disc and a third screening disc are sequentially fixed to the inner wall of the tank body from top to bottom, each of the first screening disc, the second screening disc and the third screening disc comprises a cylinderbody connected to the inner wall of the tank body, film is bonded to the circumferential inner wall of the middle of the cylinder, a first air spring is bonded to the bottom of the film, the bottom of the first air spring is bonded with the inner wall of the bottom of the cylinder body, and a spiral partition plate is fixed to the top of the film. Dry-wet materials fall into the central positionof the spiral partition plate through layer-by-layer screening of the first screening disc, the second screening disc and the third screening disc and then perform motion along a track of the spiral partition plate, a motion trail of the dry-wet material is increased, and dry-wet material separation is more thorough. Compared with a tradition vibration motor, the air spring has small vibration noise, the damage to the film and a film discharging plate is low, and the service life of the film and the film discharging plate can be prolonged.

Description

technical field [0001] The invention relates to the technical field of screening machines, in particular to a dry-wet screw screening machine. Background technique [0002] Spiral screen is mainly used in coal mining enterprises, coal preparation plants and power plants for screening and grading dry and wet coal. It can not only show high efficiency in screening dry materials, but more importantly, it can screen wet sticky materials, especially Fine-grained wet sticky materials will not block the sieve holes, and the screen penetration rate is high. It is currently a novel equipment in my country to solve the problem of wet sticky coal that cannot be classified smoothly. The traditional spiral screen has a short screening path, which easily leads to incomplete screening of dry and wet materials and poor screening efficiency. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a dry-wet scr...

AI Technical Summary

Problems solved by technology

[0002] Spiral screen is mainly used in coal mining enterprises, coal preparation plants and power plants for screening and grading dry and wet coal. It can not only show high efficiency in screening dry materials, but more importantly, it can screen wet sticky materials, especially When the fine-grained wet sticky material does not block the sieve hole, the sieve penetration rate is high. It is currently a novel equipment in my country to solve the problem of wet sticky coal that cannot be classified smoothly.

The traditional spiral screen has a short screening path, which easily leads to incomplete screening of dry and wet materials, and poor screening efficiency

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