Multi-level sand screening device for municipal administration construction

Abstract

The invention discloses a multi-level sand screening device for municipal administration construction. The multi-level sand screening device comprises a box. A collecting basket is fixedly arranged atthe bottom of the inner side of the box. Reset springs are connected between the right end of an upper sieve plate and the inner side wall of the box and between a lower sieve plate and the inner side wall of the box. Sliding rods vertically penetrate extension plates in a sliding manner. Wheels are rotationally arranged at the top ends of the sliding rods. A rotation shaft is provided with a screening barrel. A plurality of comb teeth are arranged on the surface of the rotation shaft at equal intervals. The surface of the screening barrel is of a net-shaped structure. A first driven shaft isprovided with a first fan-shaped gear matched with a first outer gear ring, and a second driven shaft is provided with a second fan-shaped gear matched with a second outer gear ring. The multi-levelsand screening device is reasonable in design, sand sequentially passes through the screening barrel, the upper sieve plate and the lower sieve plate, finally, three-level screening of sand is achieved, and accordingly three kinds of sand different in particle size can be obtained. The comb teeth comb the sand in the screening barrel through rotation of the rotation shaft, the sand loose degree isimproved, the screening effect is improved, and the sand screening efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of municipal construction machinery, in particular to a multistage sand screening device for municipal construction. Background technique [0002] Municipal engineering refers to the construction of municipal facilities. In my country, municipal facilities refer to various buildings, structures, equipment, etc. that are set up within the planning and construction scope of urban areas, towns (townships), and provide residents with paid or unpaid public products and services based on government responsibilities and obligations. 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 ...

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. Due to the requirements of municipal construction technical specifications, different construction procedures require sand with different particle sizes, so it is necessary to screen the sand. The existing sand sieve Most of the separation methods use manual screening. The sand screening process requires a lot of labor and high labor intensity. At the same time, the screening effect of the sieve is poor and the efficiency is low, which cannot meet the actual construction requirements.

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