Underground coal mine fire zone air inlet and return way automatic opening/closing air damper

Abstract

The invention provides an underground coal mine fire zone air inlet and return way automatic opening / closing air damper which includes a masonry wall, a gas detection component and a moving window anddoor. The outer periphery of the moving window and door is provided with a fireproof expansion sealing strip, a mounting cavity is arranged on the position, located on one side of the masonry wall, of the moving window and door, a braking device is installed in the mounting cavity, the braking device includes a solenoid valve, an oil pump, an AC contactor, a sensor data monitoring feedback controller, an oil pipe, a hydraulic mandril, a fixed bracket and a power supply, the piston end of the hydraulic mandril is connected to the moving window and door, the hydraulic mandril is fixedly connected to the masonry wall through the fixed bracket, and the input end of the sensor data monitoring feedback controller is connected to the gas detection component through a collection cable. By means of the underground coal mine fire zone air inlet and return way automatic opening / closing air damper, the gas content in the roadway can be monitored in real time, the moving window and door is controlled to complete a roadway closing task by itself when a disaster occurs, quick building of underground coal mine disaster assistance closed wall is achieved, the air damper has great significance in disaster management, the health and safety index of workers is improved, and disaster economic losses are reduced.

Description

technical field [0001] The invention belongs to the technical field of disaster prevention and disaster emergency rescue in underground coal mines, and in particular relates to an automatic opening and closing damper of an air inlet and return airway in an underground fire area of ​​a coal mine. Background technique [0002] Coal mine fire is one of the important disasters that affect the safety of coal mine production. Once a fire occurs underground in a coal mine, when the fire cannot be extinguished by direct fire extinguishing methods, the fire area needs to be closed. At present, the most widely used method for sealing the fire zone is to build a closed wall for the air inlet and outlet side roadways of the fire zone and reserve a ventilation opening for each, and then seal the ventilation openings at the same time. This method mainly seals the air vent by the worker, and it is impossible to seal the two air vents simultaneously. When the worker seals the air vent, his ...

AI Technical Summary

Problems solved by technology

This method is mainly for the workers to seal the vents. It is impossible to seal the two vents at the same time. When the workers seal the vents, their lives may be in danger, and a lot of manpower, material and financial resources will be wasted.

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