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Intelligent liquid supply method and system for fully-mechanized coal mining face

A technology of fully mechanized mining face and liquid supply, applied in mining equipment, mining equipment, earthwork drilling, etc., can solve the problems of complex and inability to supply liquid and liquid supply system on demand, and achieve the effect of avoiding time delay

Active Publication Date: 2018-09-11
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide an intelligent liquid supply method and system for a fully mechanized mining face to solve the technical problems in the prior art that liquid cannot be supplied on demand and the liquid supply system is complicated

Method used

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  • Intelligent liquid supply method and system for fully-mechanized coal mining face
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  • Intelligent liquid supply method and system for fully-mechanized coal mining face

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Effect test

Embodiment 1

[0050] This embodiment provides an intelligent liquid supply method for a fully mechanized mining face, which is used in the control system of a liquid supply pump station, such as figure 1 shown, including the following steps:

[0051] S101: information acquisition step: acquire the support action information of the fully mechanized mining face, the action information includes the estimated action and estimated action time of the support; this information can be obtained through the support electro-hydraulic control unit, because the support electro-hydraulic control unit is used for Unified control of the working status of all supports on the fully mechanized mining face, so it can predict the next action of each support, that is, it can obtain accurate estimated action and estimated action time of supports, among which the predicted The estimated action time is the estimated start time of the action.

[0052] S102: On-demand control step: Obtain the liquid supply demand ac...

Embodiment 2

[0055] The intelligent liquid supply method for the fully mechanized mining face provided in this embodiment is used in the control system of the liquid supply pump station, such as figure 2 shown, including the following steps:

[0056] S201: Information acquisition step: Acquiring support action information of the fully mechanized mining face, the action information including estimated action and estimated action time of the support; the information can be obtained through the electro-hydraulic control unit of the support.

[0057] S202: Determine the working mode of the support according to the estimated action of the support; if the working mode of the support is follow-up mode, output a first start signal to start at least one variable frequency pump in the liquid supply pump station; and execute step S203; Otherwise, execute step S208. The following mode means that the support moves forward following the speed of the shearer. After it is determined that the working mo...

Embodiment 3

[0069] The intelligent liquid supply method for the fully mechanized mining face provided in this embodiment is used in the control system of the liquid supply pump station, such as image 3 shown, including the following steps:

[0070] S301: information acquisition step: acquiring action information of supports in fully mechanized mining face, said action information including estimated action and estimated action time of supports; this information can be obtained through electro-hydraulic control unit of supports.

[0071] S302: Determine the working mode of the support according to the estimated action of the support; if the working mode of the support is follow-up mode, output a first start signal to start at least one variable frequency pump in the liquid supply pump station; and execute step S303; Otherwise, execute step S312.

[0072] S303: Obtain the pre-stored support follow-up parameters, obtain the liquid supply demand according to the follow-up parameters, and th...

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Abstract

The invention provides an intelligent liquid supply method and system for a fully-mechanized coal mining face. The method includes the steps of acquiring the estimated action and estimated action timeof a support of the fully-mechanized coal mining face; obtaining a liquid supply demand according to the estimated action of the support, and obtaining a flow demand and / or a pressure demand according to the liquid supply demand in combination with the current moment and the estimated action time; outputting a control signal corresponding to the flow demand and / or the pressure demand before the estimated action time. Emulsified liquid can be provided for the support according to the amount of emulsified liquid needed by the action which the support is about to execute, so that demand-based liquid supply is realized; besides, as the liquid supply action is responded to before the estimated action time, the needed emulsified liquid can be provided for the support in time, and time delay isavoided.

Description

technical field [0001] The invention relates to the technical field of hydraulic control of a fully mechanized mining face, in particular to an intelligent liquid supply method and system for a fully mechanized mining face. Background technique [0002] At present, the liquid supply system used in the fully mechanized mining face includes multiple emulsion pumps, multiple spray pumps, and multiple liquid tanks, which are used for the safe support and movement of the hydraulic support of the fully mechanized mining face, and the spraying and dust reduction of the coal mining machine. and equipment cooling. At present, the maximum liquid supply flow rate of a single emulsion pump is 630L / min, and the maximum flow rate of a single spray pump is 1000L / min. Through a centralized distributed or centralized control system, single pump operation and multi-pump linkage control are realized; through frequency converter and Electromagnetic unloading valve, as well as pressure feedback...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/08E21D23/26
CPCE21D23/26E21F17/08
Inventor 韦文术李然王伟向虎田成金刘昊叶健付仙良何正刚贾琛王大龙吴梦雨周如林王统诚张晶晶
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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