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Low-temperature rapid sealing material for high gas coal mine and preparation method thereof

A technology for gas and coal mines, which is applied in the field of low-temperature fast sealing materials for high-gas coal mines and their preparation, can solve the problems of failure to effectively control the reaction temperature of the foaming process, hidden dangers of mine safety, and smoke from the foam, so as to avoid the accumulation of reaction heat. , good airtightness, the effect of reducing emissions

Inactive Publication Date: 2019-07-12
山东润义金新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above technical solutions can effectively control the reaction temperature during the foaming process. When used in the sealing of high-gas mines, the reaction heat will continue to accumulate with the increase in the amount of spraying materials used, and the foam will be generated under the condition of poor ventilation and heat dissipation. Smoking, spontaneous combustion, and even gas explosions have brought hidden dangers to mine safety

Method used

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  • Low-temperature rapid sealing material for high gas coal mine and preparation method thereof
  • Low-temperature rapid sealing material for high gas coal mine and preparation method thereof
  • Low-temperature rapid sealing material for high gas coal mine and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A component is composed as follows, in parts by mass:

[0030]

[0031]

[0032] Group B is PM-200.

[0033] Add polyether polyol EP-330N, polyether polyol MN-3050, and triethanolamine into the mixing tank and stir evenly, then add catalyst Polycat5, catalyst Polycat41, catalyst Dabco T-12, water, foam stabilizer AK- 8872, co-solvent OP-10, co-solvent TX-10, flame retardant TCPP, continue stirring at room temperature to obtain component A;

[0034] Mix and stir components A and B at a volume ratio of 1:1 to obtain a low-temperature rapid sealing material for high-gas coal mines.

Embodiment 2

[0036] A component is composed as follows, in parts by mass:

[0037]

[0038] Group B is PM-200.

[0039] Add polyether polyol EP-330N, polyether polyol MN-3050, and triethanolamine into the mixing tank and stir evenly, then add catalyst Polycat5, catalyst Polycat41, catalyst Dabco T-12, water, foam stabilizer AK- 8872, co-solvent OP-10, co-solvent TX-10, flame retardant TCPP, continue stirring at room temperature to obtain component A;

[0040] Mix and stir components A and B at a volume ratio of 1:1.2 to obtain a low-temperature rapid sealing material for high-gas coal mines.

Embodiment 3

[0042] A component is composed as follows, in parts by mass:

[0043]

[0044] Group B is PM-200.

[0045] Add polyether polyol EP-330N, polyether polyol MN-3050, and triethanolamine into the mixing tank and stir evenly, then add catalyst Polycat 5, catalyst Polycat 41, catalyst Dabco T-12, water, and foam stabilizer in sequence AK-8872, co-solvent OP-10, flame retardant TCPP, flame retardant DMMP, continue stirring at room temperature to obtain component A;

[0046] Mix and stir components A and B at a volume ratio of 1:1.5 to obtain a low-temperature rapid sealing material for high-gas coal mines.

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Abstract

The invention relates to the technical field of polyurethane spraying materials, specifically to a low-temperature rapid sealing material for high gas coal mine and a preparation method thereof. The sealing material comprises an ingredient A and an ingredient B. The ingredient A comprises the following raw materials (by weight): 30-60 parts of polyether polyol A, 10-50 parts of polyether polyol B,5-20 parts of an alcohol amine compound, 0.5-8 parts of a catalyst, 70-120 parts of water, 1-3 parts of a foam stabilizer, 10-20 parts of a cosolvent and 10-30 parts of a fire retardant. The ingredient B is isocyanate. The mixed volume ratio of the ingredient A to the ingredient B is 1:1-5. The low-temperature rapid sealing material for high gas coal mine can be used in large quantity in a high-gas environment of the mine without heat accumulation and has low reaction temperature. Excellent performance of the polyurethane foam material is guaranteed, and potential safety hazard of the polyurethane foam material is also eliminated during its using process. The invention also provides a preparation method of the low-temperature rapid sealing material.

Description

technical field [0001] The invention relates to the technical field of polyurethane spraying materials, in particular to a low-temperature rapid sealing material for high-gas coal mines and a preparation method thereof. Background technique [0002] The relative gas emission in the coal mine is greater than 10m 3 / t or the absolute gas emission of the mine is greater than 40m 3 / min, for high-gas mines; for low-gas mines, the relative gas emission is greater than 10m 3 Individual areas of / t are high-gas areas, which should be managed as high-gas mines. The main sources of gas emission are the mining face, tunneling face and goaf. On the whole, when the coal mine is in normal production and the roadway is excavated, the amount of gas emission in the mine increases, and the output of the mine affects the gas emission. The main factor of quantity. Because a large number of goafs will be left after coal mining, the existence of goafs is likely to cause a large amount of gas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/18C08G18/66C08G18/48C08G18/32C08G101/00
CPCC08G18/3281C08G18/4804C08G18/6688C09D5/18C09D175/08C08G2110/0083C08K5/521C08K5/5333
Inventor 张白秦起俊尚伟张朋
Owner 山东润义金新材料科技股份有限公司
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