Gas monitoring arrangement system and gas concentration distribution characteristic obtaining method and device
A gas monitoring and gas concentration technology, which is applied in mining installations, earth-moving drilling, mining equipment, etc., can solve problems such as the inability to fully capture gas concentration fluctuations in coal mining faces
Active Publication Date: 2021-01-05
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] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0043] Since the current monitoring method of gas concentration in the coal mining face is single-point monitoring, the fluctuation characteristics of the gas concentration of the entire working face cannot be obtained from the monitoring data of a single point, and this fluctuation characteristic is closely related to the law of gas emission. At the same time, it is impossible to know the diffe...
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The invention discloses a gas monitoring arrangement system of a coal face and a gas concentration distribution characteristic obtaining method and device. The gas monitoring arrangement system involves supports arranged on the coal face side by side, wherein n gas sensors are arranged on each of m selected supports in the supports, each selected support extends from a goaf to a coal seam spallingarea in the coal face, the n gas sensors on the same selected support are arranged at intervals in the extending direction of the selected support, and m and n are both larger than or equal to 3. Byselecting the m selected supports in the coal face and arranging the n gas sensors on each selected support, a three-dimensional gas concentration field is formed, the gas concentration fluctuation ofthe whole face can be obtained, the gas concentration fluctuation characteristics of the face are clear, the abnormal gas emission phenomenon is judged in advance, and an important basis can be provided for gas accident treatment.
Description
technical field [0001] The invention belongs to the field of coal mine safety, and in particular relates to a gas monitoring arrangement system for a coal mining face, a method and a device for acquiring 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 accidents in coal mines, and gas accidents account for 70% of the serious accidents in coal mines. [0003] Gas concentration monitoring is an important basis for gas disaster management. At present, the gas concentration monitoring adopts the method of single-point monitoring. According to relevant regulations, a gas detector is installed on the coal mining face and its upper corner, the return air lane, the air inlet lane near the working face, and the air inlet lane near ...
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Login to View More 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