River sand classified screening device for building construction

Abstract

The invention discloses a river sand classification and screening device for building construction, which comprises a sand box, a feeding box, a screening box, a supporting sliding sleeve, a first gear, a second gear, a primary sieve plate, a secondary sieve plate, a No. The connecting rod and the No. 2 connecting rod, the inside of the sandbox is equipped with a crushing device, and the inner cavity of the feeding box is equipped with a screw feeding device. A drop pipe is connected, and the upper inner cavity of the screening box and the right inner cavity of the feeding box are connected through the second dropping tube. The inside of the screening box is respectively horizontally slidingly provided with a first-level sieve plate and a second-level sieve plate. The transmission connection between the first gear and the first-stage sieve plate is through the No. 1 connecting rod, and the transmission connection between the second gear and the second-stage sieve plate through the No. 2 connecting rod. device. The invention has the advantages of simple structure, convenient use, long service life, good screening effect on river sand, saving manpower and material resources, and improving work efficiency.

Description

technical field [0001] The invention relates to a screening device, in particular to a river sand classification and screening device for building construction. Background technique [0002] River sand is a non-metallic ore with complex components, smooth surface and high impurity content, which is produced by natural stones in the natural state, repeatedly collided and rubbed by the force of water for a long time. The grains of river sand are smooth, relatively clean, and come from a wide range of sources; river sand has no taste, while sea sand has a salty taste. [0003] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into real objects at designated locations. It includes basic engineering construction, main structure construction, roofing engineering construction, dec...

AI Technical Summary

Problems solved by technology

[0004] At present, the rough and fine separation of river sand on the construction site is sorted manually. The workers use shovels to scoop up the sand and throw it into the sorting net, which has the disadvantages of low efficiency and high labor intensity.

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