Sand screening device for constructional engineering

Abstract

The invention discloses a sand screening device for constructional engineering. The sand screening device for the constructional engineering comprises a bottom plate, a screen net, a sand screening box, a second motor, a second threaded rod, a second sleeve, a connection rod, a third motor, a crankshaft, a linking rod, a rotating shaft, a fourth motor, a third gear, a fourth gear, a spring, a stirring rod, a shredding ball, a conical material dividing plate, a magnet and an iron sheet. The sand screening device for constructional engineering is provided with a first motor, a first gear, firstsleeves and first threaded rods, the whole device is fixed, and equipment damage and a safety accident caused by toppling and falling of the device are avoided; the second motor, a second sleeve, a second threaded rod and the connection rod are arranged, the sand screening box is made to incline, discharging is facilitated, sand which cakes because of moisture is smashed, and it is avoided that the screening efficiency is affected; meanwhile, falling sand is uniformly thrown to the periphery through the conical material dividing plate, sufficient and uniform screening is performed, and it is avoided that the sand is accumulated at one position of the screen net and the screening speed is decreased; and the magnet, the iron sheet and a spring are arranged, the screen net is made to shake violently, and the screening efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering equipment, in particular to a sand screening device for construction engineering. Background technique [0002] Sand is an essential basic raw material in the field of construction. There are many impurities in the sand, such as gravel, garbage, etc., and the sand in the sand is also divided into different grades for different purposes. The required sand particle size grade different. Therefore, it is necessary to sieve the sand before using it. [0003] At present, there are many sand screening machines in the market, which are basically the same. Because sometimes the sand mixed with soil is easy to agglomerate in rainy days, the effect of sand screening on general sand screening machines is not good, and the water contained in the yellow sand when it is fished out from the bottom of the river is relatively high. Many, if it hits the rainy season again, the sieve mesh of the g...

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Problems solved by technology

[0003] At present, there are many sand screening machines in the market, which are basically the same. Because sometimes the sand mixed with soil is easy to agglomerate in rainy days, the effect of sand screening on general sand screening machines is not good, and the water contained in the yellow sand when it is fished out from the bottom of the river is relatively high. Many, if it hits the rainy season again, the sieve mesh of the general sand sieving machine is easy to block, and only three or five shovels can be used to sieve out a shovel of fine sand. The efficiency of sand sieving is low, and the quantity cannot meet the use needs

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