Dust collecting and dust removing system for wind curtain in fully mechanized excavation face

Abstract

The invention belongs to the technical field of coal mines, and discloses a dust collecting and removing system for a wind curtain in a fully mechanized excavation face. The dust collecting and dust removing system for the wind curtain in the fully mechanized excavation face comprises a pressing-in system; the pressing-in system comprises an wind curtain flow jetting device, a pressing-in type ventilator and a pressing-in type wind tube; the pressing-in type ventilator communicates with the wind curtain flow jetting device through the pressing-in type wind tube; the wind curtain flow jetting device comprises a mining tunneling high pressure blower, a first wind curtain wind-pressing wind tube, a second wind curtain wind-pressing wind tube, a flow jetting box and a flow jetting cavity. According to the dust collecting schemes, a wind curtain is installed additionally and reasonably on the basis of a wind supplying and dust removing system in an original fully mechanized excavation face, fully mechanized excavation free face is sealed, by reasonable adjusting the wind speed and wind volume of a flow field, dust is controlled to not diffuse to a roadway and not affect working, accessing and observing of a personnel, after the dust source is sealed by the wind curtain, airflow with the dust is drawn out by a dust removing device, the dust removing and purifying process of the airflow with the dust is finished accordingly, and the purpose of dust controlling is effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of coal mines, and in particular relates to an air curtain dust collection and dedusting system for fully mechanized excavation working faces. Background technique [0002] The dust removal system of the fully mechanized excavation face must be a combination of efficient dust collection and high-efficiency dust removal, and the first thing to solve is the problem of dust collection efficiency, effectively control the dust source in the flow field, prevent diffusion, and then remove dust. Aiming at the advantages and disadvantages of traditional dust control technology in excavation production, experts at home and abroad have conducted research on air curtain dust collection and dust removal technology in order to obtain better dust removal effect. The air curtain is a partition air curtain formed by blowing air out of the slit at a certain wind speed. When the ratio of the long side to the short side of the...

AI Technical Summary

Problems solved by technology

[0006] The existing technology does not reasonably install an air curtain on the original air supply and dust removal system of the fully mechanized excavation face to seal the free surface of the mechanized excavation, and does not reasonably adjust the wind speed and air volume of the flow field to control the dust from spreading to the roadway and not affecting The work, passage and observation of personnel; and the dusty airflow is not drawn out to complete the dust removal and purification of the dusty airflow

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