Three-dimensional stepped composite screen

Abstract

The invention relates to the technical field of screening equipment, and discloses a three-dimensional stepped composite screen. The three-dimensional stepped composite screen comprises a base, a boxbody, a vibration exciter, a first screening component and a second screening component, wherein the box body is movably connected to the base, a feeding opening is formed in one end of the box body,a discharging opening is formed in the other end of the box body, and the feeding opening is higher than the discharging opening; the vibration exciter drives the box body to vibrate relative to the base; the first screening component is obliquely arranged in the box body, and the first screening component comprises a screen plate and a material guide screen strip, wherein the screen plate is connected to the inner wall of the box body, the material guide screen strip is connected to the screen plate, the material guide screen strip is located above the screen plate, and a gap is formed between the material guide screen strip and the screen plate; and the second screening component is obliquely arranged in the box body and is located below the first screening component, and the second screening component is configured to re-screen the material falling from the screen plate. According to the three-dimensional stepped composite screen, at least three kinds of materials with different specifications can be screened, so that the screening efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of screening equipment, in particular to a three-dimensional ladder compound screen. Background technique [0002] At present, in various garbage disposal processes, screening machines are usually used for screening. [0003] The existing domestic garbage disposal screening machine is usually a cylindrical screening machine, which includes a transmission mechanism, a bracket and a screen body. The screen body is a circular tube-shaped sieve with evenly distributed screen holes on the surface. The garbage is input from the high end of the screen body. With the rotation of the sieve body, it gradually moves to the lower end. During this process, the ashes and humus in the garbage are screened out from the sieve holes and collected by the powder collection bucket at the bottom. Low end discharge. The disadvantage of this kind of screening machine is: the sorting rate is low, after sorting, it is still mixed g...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of screening machine is: the sorting rate is low, after sorting, it is still mixed garbage, only the dust for composting is screened out, and a large number of soft objects and lumps in the garbage are still mixed together. Manual separation does not play a sufficient role in sorting

Although the screening effect of the vibrating screen is improved compared with the cylindrical screening machine, it can only screen out two kinds of materials like the cylindrical screening machine. Secondary screening is required, and the screening efficiency is low.

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