Ventilation and dust removal system for underground large-section and long-distance heading face

Abstract

The invention discloses a ventilation and dust removal system for an underground large-section and long-distance heading face. A compressed air cylinder (3) is horizontally installed at the top of a tunneling roadway, and a fan (1), an outlet connecting pipe (3), an elbow (4), a vertical connecting pipe (4) and the compressed air cylinder (3) are sequentially connected. Two air drafting cylinders(5) are arranged and are respectively arranged on two side wall faces of the tunneling roadway, the two air drafting cylinders (5) are connected with an air outlet cylinder (7) through a tee-joint pipe (6), and an air outlet of the air outlet cylinder (7) is connected with a wet-type dust removal fan (8) arranged on the leeward side of a middle-section main roadway. The ventilation and dust removal system has the advantages of being simple in operation, reliable in operation, good in practicability and the like, can prevent the problems of low operation efficiency and high energy consumption of a tunneling ventilation system, further dust contamination to underground airflow and other operation place phenomena. In addition, dust-containing airflow purified by the wet-type dust removal fancan enter the underground ventilation system for circular ventilation, and the airflow utilization efficiency of the mine ventilation system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of ventilation and dust removal, and in particular relates to an underground ventilation and dust removal system, in particular to a ventilation and dust removal system for an underground excavation face containing a fan, a pressure air cylinder and an exhaust air duct, and is especially suitable for large-section and long-distance excavation surfaces in mines. Ventilation and dust removal are required. Background technique [0002] The ventilation and dust removal effect of the mine directly affect the safety of the mine and miners, and also directly affect the sustainable development of mining enterprises. At present, most mines in our country have entered deep mining, and it has become very difficult to solve the problem of underground dust pollution. Mine underground tunneling roadway (especially single-headed tunneling roadway) is a typical place where unorganized dust is generated underground. Because...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a ventilation system with simple operation, reliable operation, strong practicability, and low resistance of the ventilation system due to the poor ventilation effect of the existing underground tunneling roadway and the problem of continuous pollution of the underground air flow due to the failure to purify the generated dust. , A ventilation and dust removal system for underground large sections and long-distance excavation surfaces that integrates ventilation and dust removal

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