Gravel separating and drying device

Abstract

The invention belongs to the field of building engineering, and particularly discloses a gravel separating and drying device. A rack is connected with a rotary screen, a rotary motor which is used fordriving the rotary screen to rotate is further fixed on the rack, a bottom plate is further fixed on the rack, and the rotary screen is rotatably connected with the bottom plate; the inner wall of the rotary screen is fixedly connected with an inner gear ring, the lower portion of the bottom plate is rotatably connected with rotating rolls, the rotating rolls penetrate through the bottom plate, and a gear which is engaged with the inner gear ring is arranged on the outer wall of each rotating roll in a sleeving manner; a plurality of projections are arranged on the outer wall of each rotatingroll, the end, which is away from the bottom plate, of each rotating roll is connected with a telescopic cover, an electric heating wire is wound on each telescopic cover, an air inlet hole is formedin each telescopic cover, and a one-way valve is arranged in each air inlet hole; and an air inlet groove which communicates with the corresponding telescopic cover is further formed in the end surface, which is away from the bottom plate, of each rotating roll, an air outlet hole which communicates with the corresponding air inlet groove is further formed in the outer wall of each rotating roll,and an air outlet one-way valve is arranged in each air outlet hole. By the scheme, gravels are dried while being separated, two processes are combined, the time is saved, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the field of construction engineering and specifically discloses a sand and gravel separation and drying device. Background technique [0002] On the construction site, it is often necessary to use a large amount of sand and gravel. The raw materials of sand and gravel are generally obtained from rivers and other places. , generally use a sieve to separate the mixed sand and stones, and then use them separately. Because the sand and gravel raw materials contain a lot of water, and the sand is easy to agglomerate and adhere to the screen when it encounters water, so the agglomerated sand is not easy to be sieved out during the separation process with the sieve, resulting in incomplete separation. On the one hand, it causes The waste of sand, on the one hand, the sand is mixed in the stone, which affects the subsequent utilization of the stone. And the screen cannot work for a long time, and it is necessary to constantly clean ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sand separation and drying device t

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