Protruding set of guarding against contrary wind for gas

Abstract

The invention discloses a gas outburst anti-headwind device, comprising: a hanging seat, a door frame, a high-pressure air pipe, a pneumatic solenoid valve, a signal processor, a rotating shaft, an anti-outburst door panel, a movable hook, a cylinder, a gas sensor, and a wind pressure sensor. The movable hook is connected to the hanging seat through a small rotating shaft. The door frame is fixed on the roadway wall and the roadway roof. The gas sensor and wind pressure sensor are hung on the roadway roof. The cylinder and pneumatic solenoid valve are fixed on the roadway roof. Connected and controlled by a pneumatic solenoid valve, the anti-bulge door panel is connected to the upper part of the door frame through the rotating shaft, the left end of the anti-bulge door panel is supported by a movable hook, and the piston end of the cylinder is connected with the movable hook, which can prevent the outburst gas from spreading to other areas. To prevent headwind of the ventilation system and the expansion of accidents, it has the characteristics of simple structure, safety and practicality, and obvious effect.

Description

Technical field: [0001] The invention relates to a gas outburst anti-headwind device used in underground coal mines. Background technique: [0002] Gas outburst is one of the main disaster factors in coal mines. It is caused by the sudden release of gas power inside the coal seam, causing coal and gas to gushe out quickly and cause accidents. Large-scale gas outbursts mostly occur in excavation working faces with outstanding dangers. After the occurrence, it is very easy to cause headwinds in the entire mining area to cause gas explosions, and the gushing coal will block and damage the roadways, which greatly threatens the safety of underground miners. According to the analysis of outburst accidents, more than 95% of them occurred in induced outbursts during coal roadway excavation and blasting. At present, when workers carry out coal roadway excavation and blasting operations, they all dodge to a safe area before carrying out the blasting operation process. Workers cannot ...

AI Technical Summary

Problems solved by technology

At present, when workers carry out coal roadway excavation and blasting operations, they all dodge to a safe area before carrying out the blasting operation process. Workers cannot actively and effectively prevent the hazards of coal and gas outburst accidents. Once a gas outburst accident occurs, it is very easy to cause ventilation. System headwinds and even gas explosions, expanding the scope of damage to other areas

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