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Hydraulic support safety valve working state monitoring method

A working state, hydraulic support column technology, applied in the direction of mine roof support, support/support, earthwork drilling, etc., can solve the problem of time-consuming and laborious, unable to reflect the opening pressure and opening time of safety valve, safety valve monitoring and other problems

Active Publication Date: 2020-11-10
CCTEG COAL MINING RES INST +1
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Problems solved by technology

[0005] In view of this, this application provides a monitoring method for the working state of the hydraulic support safety valve. The main purpose is to solve the problem that the existing hydraulic support safety valve needs to use a special monitoring system on the ground to monitor the opening pressure. The actual opening pressure and opening time of the safety valve in the state, but there is no effective technical means to monitor the working state of the safety valve in the underground.

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  • Hydraulic support safety valve working state monitoring method
  • Hydraulic support safety valve working state monitoring method
  • Hydraulic support safety valve working state monitoring method

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Embodiment Construction

[0018] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0019] Aiming at the problem that there is no effective technical means in the underground to realize the monitoring of the opening state of the safety valve. This embodiment provides a monitoring method for the working state of the hydraulic support safety valve, which can monitor the pressure change data of the hydraulic support column in the coal mine, and determine the pressure of the hydraulic support column safety valve in the...

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Abstract

The invention discloses a hydraulic support safety valve working state monitoring method, and relates to the technical field of coal mine safety mining. The method comprises the steps of obtaining thepressure change data of a hydraulic support stand column through the real-time monitoring of the pressure state of a coal mine working face hydraulic support stand column; and determining the workingstate of a coal mine working face hydraulic support stand column safety valve according to the pressure change data of the hydraulic support stand column and the working characteristics of the hydraulic support stand column safety valve. According to the technical scheme, the pressure of a coal mine working face hydraulic support is monitored in real time, the working resistance change conditionof the hydraulic support can be comprehensively obtained, and the opening pressure and duration of the coal mine working face hydraulic support safety valve are obtained according to the working stateof the safety valve; and therefore, the purposes of evaluating the working performance of the hydraulic support, roof weighting state and whether the safety valve is damaged or not are achieved.

Description

technical field [0001] The application relates to the technical field of coal mine safety mining, in particular to a method for monitoring the working state of a hydraulic support safety valve. Background technique [0002] The hydraulic support is the equipment supporting the roof and floor of the coal mining face in coal mine production. It is used to isolate the working face from the goaf and plays an important role in ensuring the safety of equipment and personnel in the mining face. The safety of the hydraulic support column The valve is the core component to protect the hydraulic support beyond the rated working resistance to achieve overload protection. Its main parameters include opening pressure and opening time. [0003] The design rated support strength (working resistance) of the hydraulic support is determined by the cylinder diameter of the support column, the number of columns, and the opening pressure of the safety valve. In field use, the opening pressure o...

Claims

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Application Information

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IPC IPC(8): E21D23/16E21D15/46E21F17/18
CPCE21D23/16E21D15/465E21F17/18
Inventor 徐刚卢振龙刘前进任艳芳
Owner CCTEG COAL MINING RES INST
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