Dry sand grading and screening device

Abstract

The invention relates to the technical field of screening device, and particularly relates to a dry sand grading and screening device. The dry sand grading and screening device comprises a screening box, and further comprises a controller, a screening mechanism and a discharging mechanism, wherein the screening mechanism comprises a first push plate, a pushing assembly and a filtering assembly; the discharging mechanism comprises a second push plate and a sliding assembly; and the pushing assembly, the filtering assembly and the sliding assembly are all electrically connected with the controller. According to the dry sand grading and screening device, an existing screening mode in the horizontal direction is changed into a screening mode in the vertical direction, meanwhile, filtering holes of different sizes are utilized in the screening process, dry sand is screened layer by layer, the screening speed of the dry sand grading and screening device is higher than that in the prior art,the screening steps are simpler, the screening efficiency of the dry sand is obviously improved, then the yield is increased, and the enterprise income is increased; and meanwhile, the dry sand can bescreened into large, medium and small particles and collected separately, the screening effect is improved, and meanwhile workers can take the dry sand conveniently.

Description

technical field [0001] The invention relates to the technical field of screening equipment, in particular to dry sand classification and screening equipment. Background technique [0002] Sand can usually be used as a raw material for construction or environmental protection materials, but sand as a raw material needs to be screened for its particle size to ensure that different specifications of construction or environmental protection materials can be produced, and play different degrees of environmental protection or construction and protection. [0003] The existing dry sand screening equipment mainly adopts the horizontal classification and screening method. After the dry sand enters the screening machine, it passes through a layer of screen mesh in the horizontal direction, thereby screening out dry sand with different particle sizes. This kind of screening method, because the screening direction is horizontal, the screening process is complicated, the screening steps ...

AI Technical Summary

Problems solved by technology

[0003] The existing dry sand screening equipment mainly adopts the horizontal classification and screening method. After the dry sand enters the screening machine, it passes through a layer of screen mesh in the horizontal direction, thereby screening out dry sand with different particle sizes. This kind of screening method, because the screening direction is horizontal, the screening process is complicated, the screening steps are cumbersome, the screening time is long, and the speed is slow. At the same time, due to the lack of sealing structure during the screening process, dry sand is easy to spill The outside of the screening machine is not only easy to waste resources, but also not conducive to the environmental maintenance of the screening space, and the screening effect of the existing dry sand screening machine needs to be improved

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