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Rib spalling real-time prediction method

A real-time prediction and coal wall technology, which is applied in measuring devices, earth square drilling, and electromagnetic wave detection, etc., to achieve the effects of identifying large depths, improving the operating rate and recovery rate, and preventing partial side accidents

Active Publication Date: 2018-09-21
四川坤宇沃达智能科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] Based on the principle of multi-information fusion technology such as ultra-high frequency electromagnetic waves and laser scanning, this application realizes real-time prediction of coal wall slabs, solves the problem of real-time prediction of coal wall slabs in the mining process, and facilitates measures to prevent partial slabs The occurrence of accidents has increased the start-up rate and recovery rate, thereby improving safety production efficiency

Method used

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  • Rib spalling real-time prediction method

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Experimental program
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Effect test

Embodiment 1

[0054] Example 1, such as Figure 1-3 , also includes a pressure sensor 7 arranged on the upper surface of the side protection board 3; the pressure sensor 7 transmits the positive pressure information of the receiving side coal wall 1 to the data processing master station 5; the electromagnetic wave sending device 4 is arranged on the side protection board 3 On the upper surface or on the frame of the hydraulic support 2; the signal collector 6, the three-dimensional scanner 8 and the data processing master station 5 are arranged on the hydraulic support 2; a swing motor is also arranged on the hydraulic support 2, and the output of the swing motor A rotating telescopic manipulator 10 is connected to the shaft, and a brush for cleaning the upper surface of the side guard 3 is arranged on the rotating telescopic manipulator 10; The water nozzle 9; the three-dimensional scanner 8 is a three-dimensional laser scanner, and the three-dimensional scanner 8 is provided with a protec...

Embodiment 2

[0060] Embodiment 2: as Figure 4-8 , also includes a pressure sensor 7 arranged on the upper surface of the roof 12 and attached to the lower surface of the side coal wall 1; thereby reducing real-time prediction costs, the number of pressure sensors 7 can be designed according to different coal seam layouts and experience. Realize preliminary rough prediction.

[0061] A lifting screw 13 is arranged on the base of each hydraulic support 2 in the underground working face, and a walking track 14 is arranged on the nut seat of the lifting screw 13, and the walking track 14 is sequentially connected to form a conveying track, and a walking trolley is arranged on the conveying track 15; the signal collector 6 and the three-dimensional scanner 8 are arranged on the walking trolley 15 respectively, and the electric screw rod 16 is vertically arranged on the walking trolley 15, and the electromagnetic wave sending and receiving device 4 is arranged on the screw nut seat of the elect...

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Abstract

The present invention relates to a rib spalling real-time prediction method. A data processing main station, an electromagnetic wave receiving and transmitting device, a signal collector and a three-dimensional scanner are provided. The data processing main station is electrically connected with the three-dimensional scanner and the signal collector; the electromagnetic wave receiving and transmitting device is electrically connected with the signal collector; the three-dimensional scanner is configured to perform surface crack scanning and identification of the rib spalling and transmit the surface crack scanning and identification information to the data processing main station, and the data processing main station obtains the surface crack scanning and identification. The rib spalling real-time prediction method is reasonable in design, compact in structure and convenient to use.

Description

technical field [0001] The invention relates to a real-time prediction method of coal wall slab side. Background technique [0002] In coal mine production, the longwall working face, especially the fully mechanized mining face with a large mining height and soft coal seam, often has coal wall fragmentation, which seriously affects the production efficiency and safety of the coal mine, and affects the main production face of the coal mine. Equipment start-up rate and recovery rate. [0003] In "Causes and Prevention Methods of Coal Wall Fragments in Working Faces", Coal Technology, Volume 28, Issue 3, March 2009. "Extremely Soft and Thick Coal Seam Coal Wall Fracture and Prevention Mechanism" Journal of Coal Science, August 2007, Volume 32, Issue 8 only introduces preventive treatment methods, and cannot realize real-time prediction, and the geological environment of coal mines is constantly changing and difficult to predict. When a safety accident occurs instantaneously, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01V3/12G01B11/00E21F17/18
CPCE21F17/18G01B11/00G01S13/88G01V3/12
Inventor 不公告发明人
Owner 四川坤宇沃达智能科技有限公司
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