Coal mine underground coal bed waterproof paint

A waterproof coating and coal mine technology, applied in the field of waterproof coatings, can solve the problems of poor antistatic performance, large amount of polymer, poor flame retardancy, etc., to reduce unit water consumption, good impermeability, and sulfate resistance Good corrosion resistance and water resistance

Active Publication Date: 2010-06-09
SHANXI LUAN ENVIRONMENTAL ENERGY DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These waterproof coatings are used for building waterproof coatings, have coating film good elasticity, acid and alkali resistance, anti-aging, have good water resistance, possess thermal insulation again, but there are following deficiencies in being used for coal mine underground waterproofing: 1) resistance Poor flammability, some products are extremely flammable; 2) Poor antistatic performance; 3) Poor water resistance, high water absorption rate, obvious softening after long-term immersion in water, water swelling, and strength decline; 4) Large polymer consumption and high cost
The above shortcomings make general JS coatings unusable in coal mines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 14kg of redispersible latex powder, 35kg of slag cement, 35kg of quartz sand, 6kg of graphite powder, 10kg of fly ash, 4 of vermiculite powder, 6 of expanded perlite powder, 6kg of aluminum hydroxide, and 2kg of magnesium hydroxide. Mix evenly in the machine to get the powder; at the construction site, pour 55kg of mixing water into the mixer, then add 0.009kg of rosin air-entraining agent and 0.07kg of MELFLUX 1641F water reducer to the water and stir evenly, and mix the powder Pour into the agitator and stir at 300r / min for about 10min. After stirring evenly, you can start spraying. Test results: surface dry time, 1h; dry time, 8h; untreated tensile strength, 2.0MPa; untreated elongation at break, 40%; impermeable, 0.3MPa, 30min; flame retardancy and antistatic properties in line with coal Safety standard (MT113-1995), other performance indicators are qualified.

Embodiment 2

[0022] Add 20kg of redispersible latex powder, 40kg of silicate white cement, 40kg of quartz sand, 7kg of graphite powder, 10kg of fly ash, 5kg of vermiculite powder, 5kg of expanded perlite powder, 6kg of aluminum hydroxide, and 3kg of magnesium hydroxide. Mix evenly in the powder mixer to get the powder; at the construction site, pour 52kg of mixing water into the mixer, then add 0.09kg of rosin air-entraining agent and 0.08kg of MELFLUX 1641F water reducer into the water and stir evenly. Then pour the powder into the mixer, and stir at 300r / min for about 10 minutes, and spraying can be carried out after stirring evenly. Test results: surface dry time, 2h; dry time, 8h; untreated tensile strength, 1.9MPa; untreated elongation at break, 43%; impermeable, 0.3MPa, 30min; flame retardancy and antistatic properties in line with coal Safety standard (MT113-1995), other performance indicators are qualified.

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PUM

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Abstract

The invention provides a coal mine underground waterproof paint, which is characterized by comprising the following components in part by weight: 13 to 27 parts of re-dispersible latex powder, 30 to 40 parts of cement, 35 to 40 parts of quartz sand, 5 to 10 parts of graphite powder, 5 to 10 parts of fly ash, 4 to 6 parts of vermiculite powder, 4 to 6 parts of expanded perlite powder, 4 to 6 parts of aluminum hydroxide, 2 to 4 parts of magnesium hydroxide, 0.003 to 0.024 part of air entraining agent, and 0.02 to 0.09 part of water reducing agent. Compared with other waterproof paint, the coal mine underground waterproof paint has the advantages of good waterproofing quality, flame resistance, antistatic property, elasticity, good cohesive property with coal, light weight, environmental protection, nontoxicity, easy construction and the like, and is suitable for coal mine underground waterproofing.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to an underground coal seam waterproof coating in a coal mine. Background technique [0002] During the construction and production of the mine, surface water and groundwater enter the mine through various channels, resulting in damp coal walls and common water leakage, which affects underground production. Spraying waterproof paint on the seepage coal wall can effectively prevent the seepage of water. [0003] Because fires are prone to occur underground in coal mines, the coal wall is uneven and slowly deformed, and the roadway contains gas gas and other environmental conditions require coal mine underground waterproof coatings not only to have excellent waterproof performance, but also to be flame retardant, antistatic, and adhere to wet coal. It has good binding properties, certain deformability, environmental protection and non-toxicity, and is easy for underground construction. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/08C04B111/27
Inventor 程芳琴尚建国杨凤玲薛芳斌
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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