Chemical grouting material for coal-rock mass water shutoff and reinforcement and preparation method thereof

A chemical grouting material and technology for coal and rock mass, applied in chemical instruments and methods, drilling composition and other directions, can solve the problems of unreinforced coal and rock mass, low strength, and inability to completely block water, etc., and achieve the price of raw materials. Inexpensive and easy to obtain, meet environmental protection requirements, excellent pumpability

Inactive Publication Date: 2015-04-08
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although materials such as sand, cement slurry, and water glass slurry are cheap, their water blocking effect is poor, and they do not have the effect of strengthening coal and rock mass, so they cannot completely block water
Chemical grouting materials are mainly polyurethane material

Method used

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  • Chemical grouting material for coal-rock mass water shutoff and reinforcement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare 100 kg of A component material, weigh liquid sodium silicate (modulus 2.8, Baume degree 45, Yongqing County Julide Chemical Co., Ltd.) 70 kg, ethylene glycol (Sinopec Qilu Petrochemical Company) 29.5 kg, Catalyst (brand BDMAEE, Jiangdu Dajiang Chemical Industry Co., Ltd., Jiangsu Province) 0.5kg. Add the weighed ethylene glycol and catalyst into the reaction kettle and stir, stir and mix evenly at room temperature, then add liquid sodium silicate, stir evenly to obtain the qualified product of component A, discharge the material from the reaction kettle and put it into a barrel before putting it into the warehouse .

[0037] Prepare 100 kg of component B material, weigh polyphenyl polymethylene polyisocyanate (brand PM200, Yantai Wanhua Polyurethane Co., Ltd.) 70kg, viscosity reducer (brand DOP, Qingzhou Jianbang Chemical Co., Ltd.) 30kg respectively . Put the weighed polyphenyl polymethylene polyisocyanate and viscosity reducer into the reaction kettle and st...

Embodiment 2

[0041] Prepare 100 kg of A component material, respectively weigh liquid sodium silicate (modulus 2.8, Baume degree 45, Yongqing County Julide Chemical Co., Ltd.) 79.8kg, ethylene glycol (Sinopec Qilu Petrochemical Company) 20kg, Catalyst (brand Jeffcat ZR-70, American Huntsman Company) 0.2kg. Add the weighed ethylene glycol and catalyst into the reaction kettle and stir, stir and mix evenly at room temperature, then add liquid sodium silicate, stir evenly to obtain the qualified product of component A, discharge the material from the reaction kettle and put it into a barrel before putting it into the warehouse .

[0042] Prepare 100 kg of component B material, weigh polyphenyl polymethylene polyisocyanate (brand PM200, Yantai Wanhua Polyurethane Co., Ltd.) 80kg, viscosity reducer (brand DOP, Qingzhou Jianbang Chemical Co., Ltd.) 20kg respectively . Put the weighed polyphenyl polymethylene polyisocyanate and viscosity reducer into the reaction kettle and stir, stir and mix e...

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PUM

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Abstract

The invention belongs to the field of chemical synthesis, and particularly relates to a novel chemical grouting material for coal-rock mass water shutoff and reinforcement and a preparation method thereof. The chemical grouting material provided by the invention is prepared by mixing a component A and a component B at a volume ratio of 1:1, wherein the component A is prepared by proportionally mixing liquid sodium silicate, small-molecular alcohol and a catalyst; and the component B is prepared by proportionally mixing polyphenyl polymethylene polyisocyanate and a viscosity reducer. The chemical grouting material provided by the invention has the characteristics of low raw material cost, good permeability, fast curing, high adhesive force with a coal bed and high solidification strength; and particularly, the material does not foam in water, the water shutoff and reinforcement effects can be perfectly realized, the related raw materials are green and pollution-free, and the material does not contain volatile solvents or generate any poisonous gas and completely meets the requirements in use and environmental protection of coal mine water shutoff and reinforcement materials.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a chemical grouting material for water blocking and strengthening of coal and rock mass and a preparation method thereof. Background technique [0002] my country is a large coal-producing country. Affected by geological conditions, with the rapid expansion of coal mine mining scale and the continuous increase of mining depth, the water pressure suffered during mining is increasing. The problem of mine water discharge has become a prominent problem that plagues coal mine safety production. . [0003] Commonly used coal and rock mass water blocking reinforcement materials include inert materials (such as sand, sawdust, slag, etc.), cement slurry, water glass slurry and chemical grouting materials. Although materials such as sand, cement slurry, and water glass slurry are cheap, their water blocking effect is poor, and they do not have the effect of strengthening coal ...

Claims

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Application Information

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IPC IPC(8): C09K8/508C04B28/26C04B24/28C08G18/76C08G18/32
CPCC09K8/5086C04B28/26C04B2111/00724C08G18/3206C08G18/7664
Inventor 唐国涛张丽郝德开边宪磊王超
Owner SHANDONG INOV NEW MATERIALS CO LTD
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