Ventilation device for laneway grubbing with roadheader

A technology for roadheaders and equipment, applied in the field of ventilation equipment, can solve the problems of inability to reliably eliminate dust explosions, difficulty, and dust-laden airflow that cannot sufficiently pass through the return air duct to remove dust.
CN1869402AInactive Publication Date: 2006-11-29CFT GMBH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CFT GMBH
Publication Date
2006-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device used for ventilation during roadway excavation (1), wherein the roadheader (3) has a fresh air inlet duct (4) with a secondary discharge device (15) connected in the middle and a dust removal device (8) return air pipe (7). The secondary discharge device (15) is used to form a dust protection wall (20), which is slowly drawn towards the front wall (14) of the working face and is used to divert the dust-laden airflow from the dust area (27) without adverse In the case of turbulence or other influences, it can be reliably introduced into the return air duct (7) or directly into the dust removal device (8) and cleaned there.
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Description

Technical field

[0001] The invention relates to a ventilation device used for tunnel excavation using a roadheader in underground mining and tunnel engineering. It is equipped with a fresh air inlet pipe and a return air pipe integrated with a dust removal device, wherein the end of the fresh air inlet pipe Hang in a distance no more than 5m away from the wall in front of the work. Background technique

[0002] In underground mining and tunnel engineering, in order to ventilate roadways and other working areas, connect these roadways and working areas with fresh air shafts and return air shafts, so that necessary fresh air can pass through the fresh air shafts through the corresponding underground areas Flow to the return air shaft. When digging a new roadway, fresh air must be introduced artificially into the driving roadway from a roadway communicating with the air intake shaft and the return air shaft. For this, use a fresh air inlet duct and a return duct if necessary. The fr...

Claims

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