Sand screening and classifying equipment for buildings

Abstract

The invention discloses sand screening and classifying equipment for buildings. The sand screening and classifying equipment comprises a base, a supporting frame is installed at the left side of the base, a first motor is installed on the upper portion of the front face of the supporting frame, and a transmission rod is installed at the power output end of the first motor; and the other end of the transmission rod penetrates through the side edge of the supporting frame and is rotationally installed on the inner side wall of the supporting frame, two sets of winding wheels are symmetrically installed on the surface of the transmission rod, limiting rods are slidably installed on the front face and the back face of the supporting frame correspondingly, and hanging plates are installed at the opposite ends of the two sets of limiting rods correspondingly. According to the and screening and classifying equipment, the first motor drives the transmission rod to rotate, so that the transmission rod drives a feeding hopper to ascend, when the feeding hopper reaches a specified height, a second motor drives the feeding hopper to turn over, then to-be-screened sand in the feeding hopper is guided into a screen on the top layer, and the screening efficiency is guaranteed through circulating feeding; and in the process, the sand only needs to be manually poured into the feeding hopper, so that the labor intensity is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of sand screening equipment, in particular to a construction sand screening and classification equipment. Background technique [0002] Sand is generally divided into natural sand and artificial sand. Rock particles formed by natural conditions (mainly rock weathering) with a particle size of less than 5 mm are called natural sand. Artificial sand is made by crushing rocks. Because of its high cost and many flakes and powders, it is generally not used. According to its different sources, natural sand can be divided into river sand, sea sand and mountain sand. The surface of mountain sand is rough, the particles are angular, the sand content is high, the content of organic impurities is also high, and the quality is poor. The surface of sea sand and river sand is smooth, but the salt content of sea sand is high, which has a certain impact on concrete and mortar. River sand is relatively clean and widely use...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the efficiency of screening, commonly used sand screening and classification equipment requires continuous feeding of manpower, which is labor-intensive. Sands with different fineness modulus are easy to mix and difficult to collect centrally, thus reducing the efficiency of screening. , the practicability is not high, so there is a need for a sand screening equipment that can reduce labor intensity, greatly improve screening efficiency and facilitate centralized collection

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