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Backpressure monitoring system and method of hydraulic support

A technology of hydraulic support and monitoring system, which is applied to mine roof support, earth-moving drilling, mining equipment, etc., can solve the problems of inability to grasp the distribution of force, shorten the life of support, safety accidents, etc., and achieve convenient control of hydraulic support action, The results are intuitive and easy to understand, and the effect of improving the degree of transparency

Active Publication Date: 2020-09-22
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the force monitoring of the existing hydraulic support is mainly for the monitoring of the column oil cylinder, balance oil cylinder and other components, which can only realize the pressure monitoring of the column oil cylinder, balance oil cylinder, etc., and the force of the reaction is only the structural point where the oil cylinder is located. The passive stress situation cannot reflect the force on the contact surface between the entire support and the surrounding rock, and it is impossible to grasp its force distribution. When the support is subjected to a dangerous state such as partial load, the state of the support cannot be adjusted in time, which may Reduce the life of the stent or even cause a safety accident

Method used

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  • Backpressure monitoring system and method of hydraulic support
  • Backpressure monitoring system and method of hydraulic support

Examples

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Effect test

Embodiment 1

[0058] Such as figure 1 , figure 2 and image 3 As shown, a working face adopts four-column low-position top-coal caving support. In the hydraulic support design stage, the top beam 1, cover beam 2, and tail beam 3 are designed with uniformly arranged depressions. After the hydraulic support is manufactured, pressure sensors 4 are installed in the depressions. On the hydraulic support, a data acquisition device 5 in the top beam area of ​​the hydraulic support, a data acquisition device 6 in the shield beam area, and a data acquisition device 7 in the tail beam area are installed, and the above three area data acquisition devices are connected to the back pressure data acquisition and analysis device of the hydraulic support 11. Adjacent hydraulic support back pressure data acquisition and analysis devices are connected to each other, and the data is transmitted to the hydraulic support back pressure monitoring host computer 8 in the monitoring center. The hydraulic support ...

Embodiment 2

[0060] Such as figure 1 , figure 2 and image 3 As shown, a working face adopts a four-column fully mechanized mining hydraulic support. This type of hydraulic support has no tail beam 3. In the design stage of the hydraulic support, the top beam 1 and the cover beam 2 are designed with uniformly arranged depressions. After the hydraulic support is manufactured, the pressure sensor 4 is installed. The hydraulic support is equipped with a hydraulic support top beam area data acquisition device 5 and a shield beam area data acquisition device 6. The above two area data acquisition devices are connected to the hydraulic support back pressure data acquisition and analysis device 11, and the adjacent hydraulic support back pressure data acquisition The analysis devices 11 are connected to each other and transmit the data to the hydraulic support back pressure monitoring host computer 8 in the monitoring center. The hydraulic support back pressure monitoring host computer 8 is equ...

Embodiment 3

[0062] Such as figure 1 , figure 2 and Figure 4 As shown, a working face adopts a four-column low-level top-coal caving support. This type of support is equipped with a hydraulic support electro-hydraulic controller 10. In the hydraulic support design stage, the top beam 1, cover beam 2, and tail beam 3 are designed with uniformly arranged depressions. After the manufacture is completed, the pressure sensor 4 is installed in the recessed part, and the data acquisition device 5 in the top beam area of ​​the hydraulic support, the data acquisition device 6 in the shield beam area, and the data acquisition device 7 in the tail beam area are installed on the hydraulic support. Connected to the hydraulic support back pressure data acquisition and analysis device 11, the hydraulic support back pressure data acquisition and analysis devices are connected to each other, and the data is transmitted to the hydraulic support back pressure monitoring host computer 8 of the monitoring c...

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Abstract

The invention discloses a backpressure monitoring system and method of a hydraulic support. The system comprises multiple pressure sensors, a hydraulic support backpressure data collection and analysis device and a hydraulic support backpressure monitoring upper computer. The multiple pressure sensors are distributed on the upper surface, used for being in contact with surrounding rock, of the hydraulic support and are used for monitoring backpressure data on the hydraulic support in real time. The hydraulic support backpressure data collection and analysis device collects the backpressure data monitored by the pressure sensors and sends the backpressure data to the hydraulic support backpressure monitoring upper computer. The hydraulic support backpressure monitoring upper computer receives the backpressure data and analyzes and processes the backpressure data according to the mathematic interpolation algorithm, and a monitoring result is obtained. By means of the backpressure monitoring system and method, backpressure monitoring and data graphical interface displaying of the whole upper surface, in contact with surrounding rock, of the hydraulic support can be achieved, the result is visual and easy to understand, the hydraulic support can be controlled conveniently by workers to act, and a top plate is supported better.

Description

technical field [0001] The present application relates to the technical field of hydraulic supports, in particular to a hydraulic support back pressure monitoring system and method. Background technique [0002] The existing underground coal mining coal mining face adopts hydraulic support to maintain the safety of the working space. The hydraulic support fills the column with high-pressure liquid, and then drives the support top beam, cover beam and other actions to maintain a certain contact pressure with the surrounding rock. The effective contact between multiple hydraulic supports and the surrounding rock can realize the normal pulling and moving of a single support and the normal moving of the scraper conveyor, thus ensuring the normal mining process of the coal mining face. [0003] At present, the force monitoring of the existing hydraulic support is mainly for the monitoring of the column oil cylinder, balance oil cylinder and other components, which can only realiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/12E21D23/00
CPCE21D23/12E21D23/0004
Inventor 张学亮武建军杨清翔刘清高亮亮尉瑞王峰吴少伟姚钰鹏刘建林韩秀琪董伟卫佩军郭忠兵
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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