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Device for tracking and early warning outburst danger of mine coal and gas in real time

A technology of gas outburst and real-time tracking, which is applied in the direction of gas discharge, mining equipment, mining equipment, etc., can solve the problem that it is difficult to represent the characteristics of coal and rock, and achieve the effect of improving the accuracy of prediction

Active Publication Date: 2010-06-02
西安西科测控设备有限责任公司
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  • Description
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Problems solved by technology

It can be as little as one working class, or as many as a few days to make a prediction. Obviously, the results of previous predictions are difficult to represent the characteristics of coal and rock during later excavation operations in terms of time and space.

Method used

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  • Device for tracking and early warning outburst danger of mine coal and gas in real time
  • Device for tracking and early warning outburst danger of mine coal and gas in real time
  • Device for tracking and early warning outburst danger of mine coal and gas in real time

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Embodiment Construction

[0052] Below in conjunction with accompanying drawing, take the driving face as an example, describe an embodiment of the present invention

[0053] This embodiment consists of a data acquisition system, data transmission, real-time data tracking and analysis center, and comprehensive early warning. The data acquisition system is composed of an ultra-low frequency mine pressure dynamic sensor and a gas emission monitoring unit.

[0054] figure 1 It is the overall structure of the ultra-low frequency mine pressure dynamic sensor—mainly composed of microseismic signal data transmission rod (1), ultralow frequency microseismic signal sensing element (2), 4-channel microseismic signal acquisition and analysis host (3), gas sensor (4) constitute. Figure 1 # ,2 # 、3 # 、4 # --------For 4 microseismic signal sensing heads. One end of the microseismic signal conducting rod (1) is inserted into the coal seam, and the other end is installed with a low-frequency microseismic signal...

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Abstract

The invention relates to a device for tracking and early warning outburst danger of mine coal and gas in real time, consisting of a data acquisition system, tracking analytic center for data transmission and real-time data and integrated early warning and comprises the following components: a microseismic signal transmission rod, an ultralow frequency microseismic signal sensing element, a microseismic signal acquisition main computer and a three-stage integrated early-warning analysis and specialist diagnosing device. By an ultralow frequency mine-pressure dynamic sensor and a gas sensor, real-time tracking acquisition of an outburst risk signal of the coal and the gas can be realized for the first time; and the three-stage integrated early-warning analysis and specialist diagnosing device is established. The technology solves the problem that the outburst crustal stress of the coal and the gas cannot be monitored in real time and can improve the predicating accuracy of the outburst danger of the coal and the gas by over 90 percent.

Description

technical field [0001] The invention relates to a monitoring device, in particular to a device for warning the danger of coal and gas outburst in a mine. Background technique [0002] Coal and gas outburst is an extremely complex gas dynamic phenomenon in coal mines, and it is one of the serious natural disasters in underground mines. Under the interference of man-made mining activities, the original stress balance state in the coal seam is destroyed, the physical and mechanical properties of coal (coal body strength) change from strong to weak, while the ground stress (including self-weight stress, structural stress, support stress) and gas pressure Relatively enhanced; under the action of in-situ stress, the original structure of the coal seam is destroyed, cracks are produced, and a large number of free surfaces are formed, which leads to rapid and large-scale desorption of the adsorbed gas rich in the coal seam, and turns into free gas, forming a huge gas expansion press...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21F7/00
Inventor 苏燹
Owner 西安西科测控设备有限责任公司
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