Two-stage sand screening device for building construction

Abstract

The invention relates to a two-stage sand screening device for building construction. The two-stage sand screening device comprises a base plate, a first stand column and a second stand column are vertically welded and fixedly installed on the base plate, a rotary screening barrel is connected to a rotating shaft, the rotating shaft penetrates the rotary screening barrel, and spiral blades are arranged on the surface of the rotating shaft and are located inside the rotary screening barrel; a plurality of separating through holes are formed in the barrel wall of the rotary screening barrel, a feeding pipe is arranged at the position, close to a connecting ring, of the barrel wall of the rotary screening barrel, and a discharging pipe is arranged at the position, close to a second bearing block, of the barrel wall of the rotary screening barrel; a limiting sliding sleeve is fixedly installed on the right side wall of the first stand column, a ratchet wheel is rotationally arranged on the right side wall of the first stand column, and a cam is connected with the right side wall of a limiting baffle in an abutting-against manner; and a collecting groove is fixedly installed on the base plate and is located under a screening net. The two-stage sand screening device is reasonable in design and ingenious in structure, sand is screened through the separating through holes in the rotary screening barrel and the screening net on a screening plate, and the two-stage screening manner enables the screening process to be better in effect, and the obtained sand is finer and more smooth.

Description

technical field [0001] The invention relates to the technical field of municipal building construction machinery, in particular to a secondary sand screening device for building 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 ...

AI Technical Summary

Problems solved by technology

[0003] In the construction process of municipal buildings, sand is used as an ingredient for concrete pouring mortar. The sand contains more impurities, and the particle size of the sand is different. According to different construction technology requirements, sand with uniform particle size is selected, so the sand is in the It cannot be used directly when bought back, and sand needs to be sieved. In municipal construction sites, ordinary sieves are often used to process sand. This kind of sieve does not work well. The strength is high, and at the same time, it needs to undergo multiple sand screening treatments to meet the requirements. The efficiency and effect of screening are not ideal, which affects the construction quality and progress of the project.

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