Screening device beneficial for improving efficiency

Abstract

The invention discloses a screening device beneficial for improving efficiency. Conveying belts are arranged inside a screening room; the downstream height of each conveying belt is higher than the downstream height; each feeding opening is formed in the upper top of a machine body and is toward the corresponding conveying belt; each discharging hole is formed in the sidewall of the machine body;each discharging opening is connected with the downstream end of the corresponding conveying belt; when each conveying belt runs, aggregates on the conveying belt are discharged via the discharging opening; each conveying belt adopts a crawler-type conveying belt; each screen is arranged on the corresponding crawler plate and penetrates through the corresponding crawler plate; the quantity of theconveying belts is two or higher; all conveying belts are sequentially arranged from top to bottom; the diameter of screen holes of the conveying belts is sequentially reduced from top to bottom; thequantity of the discharging openings is the same as the quantity of the conveying belts; each conveying belt is matched with one discharging opening; and each partition plate is provided with an openhole. Through the structure, the screening device beneficial for improving the efficiency disclosed by the invention can realize simultaneous discharging of the aggregates which are different in particle size, and effectively improves the screening efficiency.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a screening device which is beneficial to improve efficiency. Background technique [0002] Aggregate is also called "aggregate". Granular material that acts as a skeleton and filling in concrete and mortar. There are two kinds of fine aggregate and coarse aggregate. The diameter of fine aggregate particles is between 0.16 and 5mm. Generally, natural sand is used, such as river sand, sea sand and valley sand. When there is a lack of natural sand, artificial sand ground from hard rocks can also be used; 5mm, commonly used gravel and pebbles, under the same conditions, the strength of crushed stone concrete is higher than that of pebble concrete, but crushed stone is made of crushed rocks, and the cost is higher than that of pebbles. Coarse aggregates commonly used in lightweight aggregate concrete include natural porous rocks such as pumice, and artificial porous aggregates such as ceram...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing aggregates are sieved through a sieve, and only one kind of aggregate can be sieved each time, so that the sieving efficiency is very low, and the purpose is to provide a screening device that is beneficial to improve the efficiency , to solve the above problem

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