Sand-stone material screening device with anti-blocking meshes for water conservancy project and automatic screening system

Abstract

The invention relates to a sand-gravel material screening device with anti-blocking meshes for a water conservancy project and an automatic screening system, and belongs to the technical field of screening. The sand-stone material screening device comprises a screening assembly, the screening assembly comprises a limiting frame and a first mesh screen, a mounting groove is formed in the limiting frame, and the first mesh screen is mounted in the limiting frame through the mounting groove; and a plurality of screening holes are evenly distributed in the first mesh screen, the screening holes are each in a circular shape, the first mesh screen and the limiting frame are arranged in an inclined mode, and a telescopic plate is installed at the bottom end of the limiting frame. According to the sand-stone material screening device, the including angle of the mesh screen in the mesh screen screening process is arranged, the retention rate of sand and stones on the mesh screen after the mesh screen screens the sand and stones can be effectively reduced, and the anti-blocking performance of the mesh screen is improved; and a sliding assembly is arranged and comprises a sliding plate and a limiting block, the limiting block can push the sand and stones in the feeding process, and therefore the sand and stone distribution uniformity in the sand and stone feeding process is improved, and the screening efficiency of the sand and stone in the screening process is improved.

Description

technical field [0001] The invention relates to the technical field of screening, in particular to a sand and gravel screening device and an automatic screening system for water conservancy projects with anti-blocking meshes. Background technique [0002] Water conservancy engineering is a profession related to the national economy and the people's livelihood. With the development of the national economy, a large amount of capital investment has made the construction of water conservancy projects continue to advance; Stone materials often need to be sieved during use. [0003] Sieving is the process of dividing mixed materials with different particle sizes into several different particle size levels through single-layer or multi-layer sieves. After crushing, minerals are often mixed with materials with different particle sizes, and some materials are even Contains moisture, clay or other impurities, and must be sieved to meet the requirements of the production process and o...

AI Technical Summary

Problems solved by technology

The above-mentioned sand and gravel screening device for concrete processing can drive the circular mesh screen to rotate. On the one hand, it can speed up the efficiency of sand and gravel screening, separate the stone and sand, provide assistance for the next step of cement preparation, and can also provide sand and stone utilization. rate, reducing waste, and on the other hand, it can reduce the large stones staying on the filter screen. However, during the sand screening process, because the sand is mixed with clay, after the sand screening is completed, the net A large amount of mixture remains on the outer surface of the sieve, which causes the screen to be easily blocked, which is not conducive to the popularization and use of the screening device in sand and gravel screening. Therefore, a sand and gravel screening device with anti-blocking mesh for water conservancy projects is proposed. and automatic screening system

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