Automatic screen cleaning method for sand screening equipment

Abstract

The invention discloses an automatic screen cleaning method for sand screening equipment. By reversing a sand screening frame at an angle, the mesh surface of an upward steel-wire screen is reverselybuckled downward, sand grains stuck in meshes are separated through vibration after the sand screening frame is reversed, and the separated sand grains fall into a corresponding chamber, so that the cleaning efficiency is improved. Compression bellows between a pressure plate and a supporting plate is pressurized and can provide compressed air, and the compressed air is blown through a hose to thesurface of the steel-wire screen through an air-jet pipe to further clean the sand grains on the steel-wire screen, so that screen cleaning of the meshes of the steel-wire screen is more efficient. When the sand cleaning frame rotates, a driving gear rotates accordingly, the driving gear drives a transmission gear to rotate synchronously, and a sliding rod pushes the air-jet pipe to blow along the surface of the steel-wire screen by using the relative movement of the transmission gear and the sliding rod to expand the blowing range, so that the screen cleaning efficiency is improved.

Description

technical field [0001] The invention relates to screening equipment, in particular to an automatic net cleaning method for sand screening equipment. Background technique [0002] With the development of the economy and the rapid development of science and technology, people's living standards are gradually improving, and the construction of the country is also proceeding rapidly. In real life, a large number of houses, roads and bridges are being built. These projects are collectively referred to as For civil engineering, sand and gravel are used in the construction process of civil engineering, but sometimes the size of the sand and gravel required is different, so a screening device is required to screen the sand and gravel. Most of the sand and gravel used in the construction site are sieve Sand device, but the sand screening efficiency of the current sand screening device is low. When the screen mesh is working under high load, the mesh of the screen mesh is easy to bloc...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy and the rapid development of science and technology, people's living standards are gradually improving, and the construction of the country is also proceeding rapidly. In real life, a large number of houses, roads and bridges are being built. These projects are collectively referred to as For civil engineering, sand and gravel are used in the construction process of civil engineering, but sometimes the size of the sand and gravel required is different, so a screening device is required to screen the sand and gravel. Most of the sand and gravel used in the construction site are Sand device, but the current sand screening device has low sand screening efficiency. When the screen mesh is working under high load, the mesh of the screen mesh is easy to block, resulting in a decrease in screening efficiency.

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