Gas monitoring arrangement system, method and device for obtaining gas concentration distribution characteristics
A gas monitoring and gas concentration technology, which is applied to mining equipment, earthwork drilling, mining equipment, etc., can solve the problems of inability to fully capture gas concentration fluctuations in coal mining faces
Active Publication Date: 2022-08-09
TIANDI CHANGZHOU AUTOMATION +1
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[0005] In order to solve the problem that related technologies cannot fully capture gas concentration fluctuations in coal mining face when single-point monitoring of gas concentration is carried out, this application provides a gas monitoring arrangement system, gas concentration distribution feature acquisition method and device for coal mining face
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[0042] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.
[0043] Since the current monitoring method of gas concentration in coal mining face is single-point monitoring, the fluctuation characteristics of gas concentration in the entire working face cannot be obtained from the monitoring data of a single point, and this fluctuation characteristic is closely related to the gas gushing law. At the same time, it is impossible to know the difference of gas conce...
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The present application discloses a gas monitoring and arrangement system, a gas concentration distribution characteristic acquisition method and a device for a coal mining face. The gas monitoring and arrangement system includes brackets arranged side by side on the coal mining face, and m in the brackets Each of the selected supports is provided with n gas sensors, each selected support extends from the gob to the coal seam spalling area in the coal mining face, and the n gas sensors on the same selected support are located along the selected supports. The extension directions of the selected supports are arranged at intervals, and both m and n are greater than or equal to 3. In this application, m selected supports are selected in the coal mining face, and n gas sensors are set on each selected support, thereby forming a three-dimensional gas concentration field, which can know the gas concentration fluctuation of the entire working face, and clearly work The fluctuating characteristics of gas concentration on the surface can be used to identify the abnormal phenomenon of gas gushing in advance, which can provide an important basis for gas accident management.
Description
technical field [0001] The invention belongs to the field of coal mine safety, and in particular relates to a gas monitoring and arrangement system in a coal mining face, a method and a device for obtaining gas concentration distribution characteristics. Background technique [0002] Coal mine gas disaster is the most common and serious disaster in underground coal mines. The number of deaths caused by gas accidents in coal mines in my country accounts for about 30% of the total number of deaths in various coal mine accidents. Among the major coal mine accidents, gas accidents account for 70%. [0003] Gas concentration monitoring is an important basis for gas disaster management. At present, the monitoring of gas concentration adopts single-point monitoring method. According to relevant regulations, one gas is installed in the coal mining face and its upper corner, return air lane, air inlet road near the working face, and air inlet road near the air outlet. Sensor, when ...
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IPC IPC(8): E21F17/18
CPCE21F17/18Y02A50/20
Inventor 屈世甲卜滕滕武福生贺耀宜王小松蒋泽邢震何敏钱会发王健赵立厂
Owner TIANDI CHANGZHOU AUTOMATION