Sand screening device with constant-weight feeding function for large-scale buildings

Abstract

The invention discloses a sand screening device with a constant-weight feeding function for large-scale buildings. The sand screening device comprises a material distributing vehicle, a rail support,screening boxes and a material collection box, wherein two parallel material distributing vehicle rails are arranged on the rail support; the material distributing vehicle for distributing materials is arranged on the material distributing vehicle rails; a plurality of screening boxes arranged in the length directions of the material distributing vehicle rails are arranged directly below the railsupport; a discharging hopper is fixed on the top of the each screening box; a speed reducing motor is fixed on one side of the each screening box; and a rotary shaft arranged at the output end of theeach speed reducing motor extends into the corresponding screening box. The sand screening device disclosed by the invention has the following beneficial effects that because a space of a storage grid is definite, raw sand which is fallen off from an epitaxial plate every time is definite when the speed reducing motors keep rotating at constant speed, so that the the raw sand fallen into a firstscreen mesh is fixed and constant feeding is realized; a screening effect cannot be affected by sudden change of a raw sand amount; and moreover, the sand screening device wholly consists of the plurality of screening boxes, and the single handling capacity is large.

Description

technical field [0001] The invention relates to a sand screening device, in particular to a large-scale construction sand screening device with the function of constant material feeding. Background technique [0002] During construction, the transported sand often needs to be sieved with a sieve. When the construction workers sieve the sand, they usually stand the sieve obliquely on the ground and use a shovel to scoop up the sand and spread it on the screen. This method It will seriously consume the physical strength of construction workers, and it will cause sore arms after long-term operation, and this method is very inefficient. [0003] At present, manual sand screening in construction has the disadvantages of low sand screening efficiency, time-consuming and labor-intensive sand screening. Therefore, it is urgent to develop a high-efficiency sand screening device for construction that has high sand screening efficiency, saves time, and saves manpower. Contents of the...

AI Technical Summary

Problems solved by technology

[0002] During construction, the transported sand often needs to be sieved with a sieve. When the construction workers sieve the sand, they usually stand the sieve obliquely on the ground and use a shovel to scoop up the sand and spread it on the screen. This method It will seriously consume the physical strength of construction workers, and it will cause sore arms after long-term operation, and this method is very inefficient

[0003] At present, manual sand screening in construction has the disadvantages of low sand screening efficiency, time-consuming sand screening, and a lot of energy. Therefore, it is urgent to develop a high-efficiency sand screening device for construction that has high sand screening efficiency, saves time, and saves manpower.

Images