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Mine gas drainage pipe and preparation method thereof

A technology for draining and discharging pipes and gas, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc. The performance is not very good, easy to corrode and other problems, to achieve the effect of reducing the decline of the mechanical properties of the product, good physical and mechanical properties, and good thermal shock electrical properties

Inactive Publication Date: 2019-08-30
六枝特区华兴管业制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to their own defects: easy to corrode, rust, scale, leak, blockage, low strength, easy aging, flammable, weak anti-static, etc., metal pipes and FRP plastic pipes cannot meet the environmental requirements of coal mines.
[0004] The applicant's own patent, Chinese Patent Publication No. CN102506239A, disclosed a mining gas drainage pipe on June 20, 2012. Due to the escape of solvent styrene during the curing process, it is easy to pollute the environment and workers. Health impact; the curing agent and accelerator ethylenediamine used are highly toxic, and the heat resistance, chemical resistance, impact resistance, bending resistance, thermal shock resistance and electrical properties are not very good; the amount of flame retardant aluminum hydroxide is relatively high High, the addition of solid powder causes problems such as the decline of the mechanical properties of the product and the cracking of the product surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for manufacturing a mine gas drainage pipe, comprising the following steps:

[0023] (1) Preparation of flame retardant and antistatic materials for inner and outer wall layers: weigh 100kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with a mass ratio of 5:1, first add methyl ethyl ketone peroxide and naphthene Mix 5kg of a mixture of cobalt acid with a mass ratio of 1:1, mix well, then add 100kg of a mixture of magnesium hydroxide and red phosphorus with a mass ratio of 10:1, mix well, then add 3kg of conductive cell black and mix well, and finally add 7.5kg of hexa Mix the diamine well to get the inner pipe wall material;

[0024] (2) Apply the inner pipe wall material on the mold pipe of the pipe making machine, with a thickness of 1-2mm;

[0025] (3) Preparation of unsaturated polyester resin adhesive: weigh 100kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with a mass ratio of 5...

Embodiment 2

[0029] A method for manufacturing a mine gas drainage pipe, comprising the following steps:

[0030] (1) Preparation of flame retardant and antistatic materials for inner and outer wall layers: weigh 100 kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with a mass ratio of 5:1, first add benzoyl peroxide and The mass ratio of cobalt isooctanoate is 6.5kg of the mixture of 1:1, mix well, then add 90kg of the mixture of magnesium hydroxide and red phosphorus mass ratio of 10:1, mix well, then add 4kg of acetylene black superconducting furnace carbon black Mix well, and finally add 5kg diethylaminopropylamine and mix well to obtain the inner tube wall material;

[0031] (2) Apply the inner pipe wall material on the mold pipe of the pipe making machine, with a thickness of 1-2mm;

[0032] (3) Preparation of unsaturated polyester resin adhesive: weigh 100 kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with...

Embodiment 3

[0036] A method for manufacturing a mine gas drainage pipe, comprising the following steps:

[0037] (1) Preparation of flame retardant and antistatic materials for inner and outer wall layers: weigh 100 kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with a mass ratio of 5:1, first add cyclohexanone peroxide and Naphthene cobaltic acid mass ratio is 1:1 mixture 8kg, mix well, then add magnesium hydroxide and red phosphorus mass ratio is 10:1 mixture 80kg, mix well, then add 5kg special conduction furnace method carbon black and mix well, Finally, add 2kg of diethylenetriamine and mix well to obtain the inner tube wall material;

[0038] (2) Apply the inner pipe wall material on the mold pipe of the pipe making machine, with a thickness of 1-2mm;

[0039] (3) Preparation of unsaturated polyester resin adhesive: weigh 100kg of a mixture of o-phthalic unsaturated polyester resin and bisphenol A epoxy resin with a mass ratio of 5:1, mix well...

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PUM

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Abstract

The invention discloses a mine gas drainage pipe and a preparation method thereof. The mine gas drainage pipe is prepared from the following raw materials in parts by weight: 100 parts of unsaturatedpolyester resin, 5 to 8 parts of an amine accelerator, 3 to 5 parts of a curing agent, 70 to 90 parts of fire retardant A and 3 to 5 parts of an antistatic agent, wherein the unsaturated polyester resin is a mixture of orthophthalic unsaturated polyester resin and bisphenol A epoxy resin in a mass ratio of 5:1; the fire retardant A is a mixture of magnesium hydroxide and red phosphorus in a mass ratio of 10:1. The mine gas drainage pipe of the invention satisfies the requirements of underground gas drainage safety of coal mine, has high corrosion resistance and strength, is not prone to aging,and has good fire retardancy and high antistatic property.

Description

technical field [0001] The invention relates to the field of special fiber materials, in particular to a gas drainage pipe for mines and a method for making the gas drainage pipe for mines. Background technique [0002] Metal pipes and fiberglass plastic pipes have been used for many years in coal mine underground gas drainage and municipal engineering water supply and drainage. Due to their own defects: easy to corrode, rust, scale, leak, blockage, low strength, easy aging, flammable, weak anti-static, etc., metal pipes and FRP plastic pipes cannot meet the environmental requirements of coal mines. [0003] my country is a large coal producing country in the world, and gas has always been the main factor of coal mine safety. It is urgent to increase the research and development of polyester fiber composite pipes for mine gas drainage suitable for coal mine environmental conditions to meet the safety needs of coal mine production. [0004] The applicant's own patent, Chin...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L63/00C08K3/22C08K3/02C08K3/04F16L9/12
CPCC08K2003/023C08K2003/2224C08K2201/017C08L67/06C08L2201/02C08L2203/18F16L9/121C08L63/00C08K3/22C08K3/02C08K3/04
Inventor 赵强王丽赵红霞
Owner 六枝特区华兴管业制品有限公司