High-performance organic mine reinforcing material

A technology for reinforcing materials and organic minerals, applied in mining equipment, tunnels, earthwork drilling and mining, etc., can solve problems such as potential safety hazards and general strength, and achieve the effects of strong applicability, fast on-site construction, and high flame retardancy

Inactive Publication Date: 2021-03-16
山西潞安晋安矿业工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional polyurethane reinforcement materials are flammable materials, and their strength is average, and there are still certain safety hazards in underground use.

Method used

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  • High-performance organic mine reinforcing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-performance organic mineral reinforcement material, containing two components A and B, component A is composed of 200 parts by weight of isocyanate, 20 parts of polyether polyol MV500, 20 parts of polyether polyol GY420, 10 parts of poly Ether polyol DL-204, 10 parts of graphene oxide grafted polyaniline, 5 parts of polycarboxylate superplasticizer, 3 parts of N,N bis(2-hydroxyethyl)aminomethylphosphonic acid diethyl ester and 3 parts of N-dimethylcyclohexylamine.

[0024] Component B includes 80 parts of polyisocyanate, 20 parts of short basalt fiber, and 5 parts of vinyl acetate; the length of the short basalt fiber is 0.5-2mm.

[0025] Component A and component B are injected into the cracks of loose and broken coal and rock mass through a special pneumatic grouting pump and mixing gun according to the volume ratio of 1:1.1, and are quickly cemented with the coal and rock mass to form a continuous, complete, high-quality The strength of the consolidated body,...

Embodiment 2

[0027] A high-performance organic mineral reinforcement material, containing A and B two components, A component is composed of 300 parts by weight of isocyanate, 20 parts of polyether polyol MV500, 20 parts of polyether polyol GY420, 10 parts of poly Ether polyol DL-204, 20 parts of graphene oxide grafted polyaniline, 8 parts of polycarboxylate superplasticizer, 5 parts of N,N bis(2-hydroxyethyl)aminomethylphosphonic acid diethyl ester and 3 parts halophosphate FR-780.

[0028] Component B includes 100 parts of polyisocyanate, 15 parts of short basalt fiber, and 5 parts of ethylene; the length of short basalt fiber is 0.5-2mm.

[0029] Component A and component B are injected into the cracks of loose and broken coal and rock mass through a special pneumatic grouting pump and mixing gun according to the volume ratio of 1:0.9, and are quickly cemented with the coal and rock mass to form a continuous, complete, high-quality The strength of the consolidated body, thus playing a ...

Embodiment 3

[0031] A high-performance organic mineral reinforcement material, containing two components A and B, component A is composed of 350 parts by weight of isocyanate, 10 parts of polyether polyol GY420, 15 parts of polyether polyol DL-204, 15 parts Polyether polyol JH303, 10 parts of graphene oxide grafted polyaniline, 8 parts of polycarboxylate superplasticizer, 5 parts of N,N bis(2-hydroxyethyl)aminomethylphosphonic acid diethyl ester and 3 parts halophosphate FR-780.

[0032] Component B includes 50 parts of polyisocyanate, 20 parts of short basalt fiber, and 10 parts of vinyl laurate; the length of the short basalt fiber is 0.5-2mm.

[0033] Component A and component B are injected into the cracks of loose and broken coal and rock mass through a special pneumatic grouting pump and mixing gun at a volume ratio of 1:1, and are quickly cemented with the coal and rock mass to form a continuous, complete, high-strength Consolidation body, so as to play a reinforcing role.

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Abstract

The invention discloses a high-performance organic mine reinforcing material, and relates to the technical field of chemical grouting reinforcement of coal and rock masses. A component A is prepared from the following components in parts by weight: 100-400 parts of isocyanate, 40-50 parts of polyether polyol, 10-20 parts of graphene oxide grafted polyaniline, 5-8 parts of a dispersing agent, 3-5 parts of a flame retardant and 3-5 parts of a catalyst; a component B comprises the following components in parts by weight: 50-100 parts of polyisocyanate, 10-20 parts of basalt short fibers and 5-10parts of a toughening agent; wherein the volume ratio of the component A to the component B is 1: 0.9-1.1, and the mine reinforcing material is prepared. The reinforcing material disclosed by the invention has the characteristics of high compression strength, tensile strength and shear strength, low viscosity, strong permeability, low reaction temperature and high flame retardancy, and is suitablefor safety reinforcement of coal seams under mines.

Description

technical field [0001] The invention relates to the technical field of coal and rock mass chemical grouting reinforcement, in particular to a high-performance organic mining reinforcement material. Background technique [0002] Chemical grouting reinforcement materials have been used in the daily production of coal mines as a conventional technology. Chemical grouting reinforcement technology can change the loose structure of surrounding rock in time, improve the overall strength of rock mass, thereby increasing the construction speed and ensuring the normal succession of the working face. It is worth applying in coal mines when abnormal conditions such as faults pass. In addition, in other links of coal production, such as: the side of the coal face, roof fall and other similar situations, this technology can also be used for treatment. Therefore, chemical slurry injection reinforcement technology is a practical support technology to ensure mine production safety. Due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L87/00C08K5/5353C08K5/521C08K7/10C08K5/12E21D9/00
CPCC08L75/08E21D9/002C08L2201/02C08L2205/03C08L2205/035C08L87/005C08K7/10C08K5/5353C08K5/521C08K5/12
Inventor 王留着白广平冯洁杨锐
Owner 山西潞安晋安矿业工程有限责任公司
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