Mosaic type elastic compound sieve plate

Abstract

A mosaic elastic composite screen plate suitable for sieving of various kinds of vibrating screens comprises a framework, a crossbeam of the framework, a stringer of the framework and elastic sifting bars. The framework is a composite elastic framework formed by adhering polyurethane and 20-g steel plate, a plurality of blind holes are respectively provided on the inner side of the composite elastic framework for supporting the elastic sifting bars, through holes for allowing the elastic sifting bars to pass through are provided on the framework corresponding to the other side of the blind holes and on the crossbeam located at the middle section, and the elastic sifting bars are in clearance fit with through holes where the framework and the crossbeam penetrate. Because the screen plate is an elastic body, the elastic collision effect of the elastic sifting bars can be enhanced during the vibration process of the screen plate along with the screen body to accelerate the loosening and cutting of viscous and moist materials. The oscillation energy produced by the collision and the multi-degree-of-freedom position change of the sifting bars can prevent the screen plate from adhering the materials and being jammed in the cleaning process, thus greatly improving the screening efficiency.

Description

technical field [0001] The invention relates to a mosaic type elastic compound sieve plate, which is especially suitable for the sieve plate of the large-scale vibrating screen for raw coal dry deep screening, and also suitable for the sieve plate of other types of vibrating sieves. Background technique [0002] Raw coal dry depth screening is an international technical problem, which has not been well resolved. Several countries with developed coal preparation technology in the world have launched several related equipment, and my country has also introduced some vibrating screen equipment such as string screen, relaxation screen, equal thickness screen, banana screen, etc. These equipment are in the form of sieve plates and All have their own characteristics in structure, and solve some problems under specific conditions. However, the use of these equipment still reflects structural problems. Due to the unreasonable structure of the sieve plate, the screening efficiency is...

AI Technical Summary

Problems solved by technology

However, the use of these equipment still reflects structural problems. Due to the unreasonable structure of the sieve plate, the screening efficiency is not high, the screen is easy to block, and the high failure rate cannot meet the needs of deep screening operations.

In recent years, my country has made some achievements in the research of this technical problem and the development of related equipment, but the developed related equipment can not solve the problem of process effect and screening efficiency well. The setting of structure and geometric parameters can not better meet the needs of raw coal dry depth screening

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