Concrete dried aggregate continuous multilevel sorting and grading device

Abstract

The invention discloses a concrete dried aggregate continuous multilevel sorting and grading device comprising a storage chamber, a first helical blade, a second helical blade, a driving device, a sorting barrel, material receiving cover plates, an air blower, a material receiving box, a fixed box and an inclined screen barrel. Concrete dried aggregate is stirred in the storage chamber, thereby passing a falling opening easily, and the condition that the concrete dried aggregate blocks the falling opening is avoided. The concrete dried aggregate enters the sorting barrel, due to the action of a variable air volume valve, the air injection quantities and air injection intensities of nozzles from top to bottom are different, thus after the concrete dried aggregate is subjected to multiple times of air injection action of the nozzles, the concrete dried aggregate of different particle weights is collected into the different material receiving cover plates to be graded and sorted, particles of higher weight enter the inclined screen barrel, particle material entering the inclined screen barrel rolls left and right in a reciprocating mode without stop, and thus the screening effect is obvious.

Description

technical field [0001] The invention relates to the technical field of concrete production, in particular to a continuous multi-stage sorting and grading device for dry aggregate of concrete. Background technique [0002] In the field of concrete production, the country vigorously advocates high-quality, high-quality, low-cost concrete production technology, so as to achieve the purpose of saving energy and reducing consumption. Moreover, the state also vigorously encourages environmental protection and energy-saving production, and strives to improve production efficiency, reduce production costs, reduce industrial noise, reduce dust pollution, and improve smog weather. [0003] At present, most industries in the industrial field still use traditional vibrating screens to classify and sort dry materials. Especially in the production of commercial concrete configuration, most of them use vibrating screens to classify aggregates such as sand, stone and mineral additives. Si...

AI Technical Summary

Problems solved by technology

However, the particle size of the aggregate obtained after the classification of the existing winnowing and grading device still has the following problems: one is not concentrated enough, and there are fewer aggregates in the same particle size range in the aggregates of all levels obtained after winnowing

Second, the aggregate after winnowing still contains a certain amount of stone powder and soil. When mixing concrete, the stone powder and soil will absorb the admixture, which will increase the amount of admixture and increase the cost.

Images