Vibration excitation device for microseismic monitoring in coal mine
A technology for microseismic monitoring and coal mines, applied in mining equipment, mining equipment, earthwork drilling, etc., can solve the problems of poor adaptability and low safety, and achieve the effects of strong adaptability, high safety and safe operation.
Active Publication Date: 2015-08-19
CCTEG CHINA COAL RES INST
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Problems solved by technology
[0005] In order to solve the problems of low safety and poor adaptability of vibration excitation devices in existing microseismic monitoring, the present invention provides a vibration excitation device for microseismic monitoring in coal mines
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 Shown is a preferred embodiment of the vibration excitation device used for microseismic monitoring in coal mines of the present invention.
[0021] The vibration excitation device for microseismic monitoring in coal mines includes an explosion-proof vibration excitation control box 1, a vibration motor 2, an explosion-proof power supply 3 and a vibration motor base 4; the explosion-proof vibration excitation control box 1 is used to control the vibration motor 2 vibration time and vibration frequency, wherein the control vibration time is realized by controlling the start vibration time and the end vibration time of the vibration motor 2; the explosion-proof power supply 3 provides for the explosion-proof vibra...
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A vibration excitation device for underground coal mine micro-seismic monitoring comprises an explosion-proof vibration excitation control cabinet (1), a vibration motor (2), an explosion-proof power source (3) and a vibration motor base (4). The explosion-proof vibration excitation control cabinet (1) is used for controlling the vibration time and the vibration frequency of the vibration motor (2), the explosion-proof power source (3) provides power for the explosion-proof vibration excitation control cabinet (1) and the vibration motor (2), the vibration motor (2) is used for generating vibration and fixed on the vibration motor base (4) which is in a right triangle shape, the two right-angle edges of the right triangle are in contact with a coal wall (5) and a bottom plate (6) respectively, and the vibration motor base (4) is fixedly connected with the bottom plate (6) through a vibration reducing mechanism (401). The vibration excitation device is high in safety and strong in adaptability.
Description
technical field [0001] The invention relates to a vibration excitation device, in particular to a vibration excitation device used for underground microseismic monitoring in coal mines. Background technique [0002] Rock burst is one of the major disasters in coal mines, which seriously threatens the safety of coal mine production. According to the mechanism theory of rock burst, the occurrence of rock burst is the result of the joint action of the characteristics of coal and rock mass and the influence of human mining. Therefore, for mines with rock burst disasters, rock burst is accompanied by mine production. potential safety hazards. In order to predict and prevent the occurrence of rock burst, it is necessary to continuously monitor the impact of coal mine mining. At present, microseismic monitoring is widely used, and the microseismic system is used to monitor the microseismic waves formed by coal and rock mass under the influence of mining. Frequency and magnitude, ...
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IPC IPC(8): E21F17/18
Inventor 张辉欧阳振华邓志刚王永仁孔令海
Owner CCTEG CHINA COAL RES INST