Sand screening device for municipal engineering

Abstract

The invention discloses a sand screening device for municipal engineering. The sand screening device comprises an operation box. A support frame is fixedly arranged at the top of the operation box. Arotating wheel is rotationally arranged on the support frame. A first limiting wheel and a second limiting wheel are rotationally and symmetrically arranged on the support frame. A positioning columnis eccentrically and fixedly arranged on the front surfaces of a first pull rope and the rotating wheel. The other end of a second pull rope is fixedly connected with the first pull rope. A screeninggroove is formed in the operation box. The first pull rope downwardly penetrates the screening groove and bypasses a fixed pulley I, and the end, far away from a lantern ring, of the first pull rope is fixed to the lower bottom surface of the screening groove. According to the sand screening device for municipal engineering, the first pull rope moves up and down through the rotation of the rotating wheel, so that the screening groove is driven to vibrate up and down under the elastic acting force of a return spring, the shaking of sand in the screening groove is promoted, and the screening speed of the sand is greatly increased; and a sliding plate slides in a left-right reciprocating manner, the sand is discharged from a feeding hopper in an intermittent manner, the sand is prevented fromfalling into the screening groove too intensively, and the screening of the sand is more fully and completely carried out.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a sand screening device for municipal engineering. Background technique [0002] Municipal engineering refers to the construction of municipal facilities. In my country, municipal facilities refer to various buildings that are set up within the planning and construction scope of urban areas and towns (townships) and provide residents with paid or free public products and services based on government responsibilities and obligations. , structures, equipment, etc. The construction of various public infrastructure supporting urban life belongs to the category of municipal engineering, such as common urban roads, bridges, subways, and various pipelines closely related to life: rainwater, sewage, water supply, reclaimed water, electricity, telecommunications, Heat, gas, etc., as well as the construction of squares, gardens, etc., all belong to the category of municipal ...

AI Technical Summary

Problems solved by technology

[0003] In the process of municipal engineering construction, sand is one of the most commonly used building materials. In actual use, due to the technical requirements of municipal construction, it is necessary to screen the sand to obtain finer sand with smaller particle size. The current municipal construction sand screening device has a poor screening effect on sand. Most of the screening process requires manual feeding, which requires a large amount of labor and low efficiency, which is not conducive to the current municipal construction needs.

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