Construction sand and gravel safe screening device

Abstract

The invention discloses a construction sand and gravel safe screening device, and belongs to the field of construction materials. A feeding pipe is arranged at the top end of a processing box; the bottom end of the feeding pipe is connected with a first communicating pipe and a second communicating pipe at the same time; the joint of the top ends of the first communicating pipe and the second communicating pipe is movably connected with the bottom end of a partition plate; the bottom end of the second communicating pipe is connected with an inlet end of a crashing box; a first sieve plate anda second sieve plate are obliquely arranged inside the processing box; a spraying tray is arranged inside the processing box and arranged at an outlet end of a water spraying pipe; the water sprayingpipe communicates with a water tank; a guide plate is obliquely arranged at the bottom end of the processing box; the lowest end of the guide plate is connected with one end of a water outlet pipe; the other end of the water outlet pipe communicates with a settling basin; the side wall of the water tank is connected with an outlet end of a water return pipe; and an inlet end of the water return pipe is arranged in the settling basin. According to the construction sand and gravel safe screening device, sand and gravel with different particle sizes can be separated conveniently, and then can beused as different construction materials advantageously, the working effect and working efficiency are improved, the cycling utilization of water is guaranteed, the utilization rate of water resourcesis improved, and the device is convenient to use.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a safety screening device for building sand and gravel. Background technique [0002] Because of its good hardness and stable chemical properties, sand and gravel are often used as high-quality building materials and concrete raw materials and are widely used in housing, roads, highways, railways, engineering and other fields. With the requirements of infrastructure construction technology and the development of high technology, there are higher requirements for the quantity and quality of sand and gravel. Sand and gravel are loose materials, but their particles are generally hard and chemically stable in the surface environment. For sandstone, its weathering resistance is generally strong, especially the silicified quartz sandstone, whose hardness exceeds that of granite. Sand and gravel are the basic materials in national economic construction, mainly used in foundation engi...

AI Technical Summary

Problems solved by technology

[0003] The existing sand and gravel are generally of different sizes, and sand and gravel of different particles can be used as different building materials. The existing construction sand and gravel are generally mixed together when transported, which affects the use of subsequent buildings.

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