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Pressure detecting method for preventing clogging of filling pipeline

A technology for filling pipelines and detection methods, which is applied to filling materials, earth cube drilling, mining equipment, etc., to achieve the effects of preventing the expansion of faults, saving maintenance costs, and shortening maintenance time

Active Publication Date: 2013-07-24
FENY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the filling pipeline is blocked, if there is no timely and effective detection method, it will definitely cause a very serious accident

Method used

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  • Pressure detecting method for preventing clogging of filling pipeline
  • Pressure detecting method for preventing clogging of filling pipeline
  • Pressure detecting method for preventing clogging of filling pipeline

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Select three pressure measurement points on the main pipeline of the filling pipeline and set up pressure sensors with flat ceramic contact surfaces ( figure 1 ), wherein: the first pressure measurement point A is set at the front of the roadway filling pipe to monitor whether the filling pipe, standpipe and two elbows on the ground are blocked. (Note: In actual application, the probability of pipe blockage of elbows is much higher than that of straight pipes) and compare the pressure difference with the other two points.

[0024] The second pressure measurement point B is set in the middle of the roadway filling pipe to monitor whether the filling pipe is blocked, and compare the pressure difference with the other two points.

[0025] The third pressure measurement point C is set on the filling pipe at the inflection point of the working face a...

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Abstract

The invention relates to a pressure detecting method for preventing the clogging of a filling pipeline, which is characterized in that pressure sensors are arranged on at least three pressure detecting points on the main pipe of the filling pipeline, wherein the first pressure detecting point is arranged at the front part of a laneway filling pipe, the second pressure detecting point is arranged in the middle of the laneway filling pipe, the third pressure detecting point is arranged on the filling pipe at the inflection point of a working face and a gate, the pressure sensors are used for transmitting real-time pressure values of the pressure detecting points into a PLC (programmable logic controller), whether pipeline clogging occurs or not is judged and measures needing to be taken when pipeline clogging occurs are judged through a control program preset in the PLC. With the adoption of the pressure detecting method, whether the filling pipeline is clogged or not and the filling pipeline is clogged at which position can be accurately judged and the clogging condition is processed in time according to the pressure difference change of the pressure detecting points and the rapid pressure change of each single pressure detecting point.

Description

technical field [0001] The invention relates to a method for detecting blocked pipes in mining and filling projects, in particular to a pressure detection method for preventing filling pipelines from being blocked. Background technique [0002] Underground filling has become an indispensable part of coal mining in today's society. The existing underground filling system is relatively advanced pipeline filling technology. The most difficult problem in pipeline filling technology is to detect and deal with pipeline blockage in time. When the filling pipeline is blocked, if there is no timely and effective detection method, it will cause very serious accidents. Therefore, with the continuous improvement of downhole filling technology, how to use the pressure measurement of the filling pipeline to monitor the operation status of the filling pipeline in real time, so as to find the fault point in time, has become a top priority for the development of the downhole filling system ...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21F15/00
Inventor 蔡颖
Owner FENY
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