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Automatic grouting control method and device

An automatic control device and grouting technology, applied in non-electric variable control, comprehensive factory control, comprehensive factory control and other directions, to achieve the effect of ensuring safety, wide practicability and good effect

Inactive Publication Date: 2015-04-22
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a method and device that is simple in structure, easy to use, and solves the problem of automatic control of water plugging and grouting under complex geological conditions in mines.

Method used

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  • Automatic grouting control method and device

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Embodiment Construction

[0020] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0021] The steps of the grouting automatic control method of the present invention are as follows,

[0022] Step 1, the control of the initial injection stage:

[0023] After the device is started, the microprocessor 10 controls the cement quantitative controller 2 and the additive quantitative controller 3 to put cement and additives into the slurry tank 11 according to the preset input parameters, and then the microprocessor 10 controls the water flow controller 1 to inject the slurry into the slurry tank 11. The pre-set amount of water is injected into the barrel 11, and at the same time, the microprocessor 10 sends instructions to the stirring controller 4, and the stirring controller 4 controls the slurry barrel 11 to stir the internal materials, and the mass flow transmitter 8 is connected to the slurry barrel 11. The density of the slurry is detecte...

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Abstract

The invention relates to automatic grouting control method and device which are particularly applicable to water burst prevention during roof grouting in mines. The automatic grouting control device comprises five controllers including a water feed flow controller, a quantitative cement controller, a quantitative additive controller, a stirring controller and a grouting controller, four transmitters including a grouting pressure transmitter, a grouting flow transmitter, a quality and flow transmitter and a hole pressure transmitter, and a microprocessor. Grout in a certain density is provided through the water feed flow controller, the quantitative cement controller and the quantitative additive controller, the quality and flow transmitter indirectly detects density of the grout and provides information for control, grout quantity and pressure are controlled according to two different stages of grouting including initial grouting and grouting pressing, grouting effect and state switching are judged according to feedback signals of the hole pressure transmitter, and finally, optimized grouting control of different complicated geological conditions is completed.

Description

technical field [0001] The invention relates to an automatic grouting control method and device, in particular to an automatic grouting control method and device suitable for grouting control under complex geological conditions of mines. technical background [0002] Roadway grouting is the key link of water blocking project. The quality of grouting is directly related to the success or failure of water blocking project. Strengthening the technical monitoring of grouting site and ensuring the quality of water blocking grouting can form a A solid retaining wall can fundamentally prevent flooding. The current method of grouting control is the control of fixed parameters, which cannot automatically adjust the grouting liquid density and grouting pressure according to the feedback of grouting, which affects the effect of grouting. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418G05D27/02
CPCY02P90/02
Inventor 童敏明童紫原岳建华
Owner CHINA UNIV OF MINING & TECH
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