Device and method for predicting gas outburst in drilling process of coal seam drilling machine

By installing a collection device on the drill pipe of the coal seam drill rig, data on the drilling hole outflow amount and the drilling pipe torque amount are collected in real time, and combined with the signal acquisition host for processing, the problem of difficult to predict geological abnormal areas and gas outbursts in the prior art is solved, and high-accuracy prediction and real-time early warning are achieved.

CN119914349APending Publication Date: 2025-05-02NORTH CHINA INSTITUTE OF SCIENCE & TECHNOLOGY (NATIONAL SAFETY TRAINING CENTER OF COAL MINES)
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Patent Information

Application Number
CN202411857454.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-05-02

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Abstract

The invention belongs to the field of regional gas outburst risk prediction, and relates to a gas outburst prediction device in the drilling process of a coal seam drilling machine, which comprises a drill rod, a gas-solid-water separation device, a weighing sensor, a flow sensor and a drilling machine, the drilling machine is further provided with a torque sensor for measuring the torque of the drill rod. The hole sealing material is further provided with a communicating pipe, the first end of the communicating pipe is arranged in the drill hole, the second end of the communicating pipe is connected with the input end of the gas-solid-water separation device, the output end of the gas-solid-water separation device is connected with the weighing sensor, and the flow sensor is arranged on the gas-solid-water separation device. The flow sensor is used for measuring the volume of gas flowing out through the communicating pipe. According to the device, the outburst danger of a coal body is judged by factually collecting the drilling hole gushing amount and the drilling rod torque amount, and the gas outburst condition in a coal seam is detected in real time. The invention further provides a corresponding prediction method.
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