Roadway construction equipment and dust removing device thereof

Abstract

The invention discloses roadway construction equipment and a dust removing device thereof. The dust removing device comprises a negative-pressure wind-cone, a dust removing fan, a dust remover, an air curtain mechanism and a positive-pressure wind-cone, wherein the air curtain mechanism is arranged on the roadway construction equipment or the roadway inner wall of roadway construction equipment operation; the air curtain mechanism is used for ejecting air current into a roadway to form a dust-blocking air curtain for isolating the control chamber of the roadway construction equipment from a tunneling work surface; the positive-pressure wind-cone is arranged on the roadway construction equipment or the roadway inner wall; the exhaust end of the positive-pressure wind-cone is arranged between the dust-blocking air curtain and the tunneling work surface; the exhaust end of the positive-pressure wind-cone points to the tunneling work surface; and the air sucking end of the negative-pressure wind-cone is arranged between the dust-blocking air curtain and the tunneling work surface. According to the dust removing device disclosed by the invention, air is supplied to the tunneling work surface through the positive-pressure wind-cone for blowing gas near the tunneling work surface away and lowering the gas concentration on the tunneling work surface, so that safety problems of explosion and the like possibly caused by the accumulation of gas on the tunneling work surface to a certain degree are avoided.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to roadway excavation equipment and a dust removal device thereof. Background technique [0002] The roadheader is a comprehensive coal mining equipment that integrates the functions of cutting, loading, and walking. Since most of the excavation working faces are dry coal seams with very low water content, during the excavation process of the roadheader, there will be generated A large amount of dust, especially the amount of dust generated by rock roadway machine excavation, can be as high as 1000mg / m3 or more, and the operator of the roadheader is generally very close to the dust source, and the dust seriously endangers the physical and mental health of the operator. [0003] Patent No. CN200710015894 discloses "A Closed Dust Removal Method and Device for Road Header". The dust removal device in this patent includes an air curtain dust sealing device, a suction cylinder, a win...

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Problems solved by technology

[0004] In view of this, the present invention proposes a roadway excavation equipment and its dust removal device to reduce the gas concentration at the excavation face and solve safety problems such as explosions that may be caused by gas accumulation

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