Coal Caving Control System for Short Wall Top Coal Caving Face in Steeply Inclined Extra Thick Coal Seam
A technology of extra-thick coal seam and control system, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve problems such as difficult application, inapplicability to steeply inclined ultra-thick coal seam mining, and inability to accurately control support, so as to reduce switch problems, reduce manual intervention, and reduce the effect of complex processes
Active Publication Date: 2018-02-09
CHNA ENERGY INVESTMENT CORP LTD +1
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Problems solved by technology
[0006] 1) It can only rely on the chronological sequence of the support action record for output, and cannot accurately control the current attitude of the support; or it can only rely on the support attitude coupling device to collect the attitude information of the support for a long time for sample analysis, and then perform statistical analysis and control. In practical applications Difficult to apply
[0007] 2) The existing technology adopts the longwall coal mining face, which cannot be applied to the mining of steeply inclined and extremely thick coal seams
[0008] 3) It cannot be applied to the control of the opening and closing of the coal discharge mechanism of the top coal caving face, and the action sequence operation has no practical use for coal discharge
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[0023] The present invention will be described in detail below in conjunction with examples. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.
[0024] figure 1 It is a preferred embodiment of the coal-drawing control system of the short-wall top-coal caving face of the steeply inclined extra-thick coal seam of the present invention. Such as figure 1 As shown, the coal caving control system provided by the present invention for the short-wall top coal caving face in steeply inclined ultra-thick coal seams includes a hydraulic support 100 , a posture monitoring device, a main control computer 300 , a support control device 400 and a gangue identification device 5...
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The invention discloses a coal caving control system for a short-wall top-coal caving face in a steeply inclined ultra-thick coal seam. The coal discharge control system includes: a hydraulic support, the hydraulic support includes a support base, a hydraulic cylinder, a drive beam, a tail beam and a plugboard; the tail of the hydraulic cylinder is fixed on the support base, and the hydraulic cylinder is provided with a retractable ejector rod to drive The beam is fixed at the movable end of the mandrel; the first end of the tail beam is connected to the driving beam, and the insert plate is installed at the second end of the tail beam; the attitude monitoring device is used to detect the real-time attitude of the hydraulic support; output control according to the real-time attitude The main control computer of the signal; the support control device that controls the hydraulic cylinder according to the control signal, and the signal input end of the main control computer and the signal output end of the attitude monitoring device are connected through the support control device. The coal discharge control system of the invention can be applied to the coal discharge control of the short-wall top-coal caving working face in steeply inclined ultra-thick coal seams.
Description
technical field [0001] The invention relates to a coal caving control system suitable for a short-wall top-coal caving face in a steeply inclined extra-thick coal seam. Background technique [0002] At present, most coal mine caving faces use hydraulic support electro-hydraulic control system to realize the operation, and the control technology of support has also been developed. In actual production, manual operation of hydraulic supports is generally used to control coal discharge based on experience. However, this production method relying on manual single-action operation requires many people at the working face, low efficiency, and the contradiction between coal quality control and recovery rate is more prominent. During the coal caving process, the opening and closing of the top coal caving mechanism needs to be observed by human eyes, which cannot meet the requirements of intelligent control. Therefore, how to improve the automatic control precision of the top-coal c...
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IPC IPC(8): E21D23/12
Inventor 田华罗洪波漆涛张戈何亿炎薛天山韦文术牛剑峰刘清魏文艳林恩强李重重毕东柱崔耀
Owner CHNA ENERGY INVESTMENT CORP LTD