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Coal mine underground rubber hose for drawing out methane and preparation method thereof

A rubber hose, coal mine technology, used in hoses, gas discharge, mining equipment, etc., can solve the problems of high volume resistivity, accidents, and difficulty in exporting static charges.

Active Publication Date: 2010-06-09
CHANGZHI ZETAI RUBBER & PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low flame retardancy and high volume resistivity of the commonly used rubber hoses at present, the electrostatic charge generated when transporting liquids, powdery solids, and gases is difficult to be exported, and accidents often occur due to sparks caused by static electricity. In the event of a fire accident, it is also difficult to achieve the purpose of flame retardancy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The main material nitrile rubber was purchased from Gansu Lanhua Company, neoprene 121 was purchased from Chongqing Changshou Chemical Co., Ltd., and acetylene carbon black was purchased from Jiaozuo Hexing Chemical Industry Co., Ltd.

[0044] Take 180Kg of natural rubber, 120Kg of neoprene rubber, 150Kg of nitrile rubber, 150Kg of acetylene carbon black, 45Kg of carbon black N375, 45Kg of phthalic acid, 54Kg of dibutyl phthalate, 54Kg of antimony trioxide, and decabromopropyl ether 21kg, aluminum hydroxide 150Kg, paraffin 24Kg.

[0045] 1) Baking rubber: Baking temperature is 50-60°C for natural rubber, 50-60°C for nitrile rubber, 40-50°C for neoprene, and the drying time is 24 hours.

[0046] 2) Cut the rubber: take the raw rubber out of the drying room, wash off the surface glue, sand and impurities with a brush, and cut it into small pieces of 5-10Kg.

[0047] 3) Glue breaking: 16-inch rubber mixing machine, the roller temperature is controlled at about 45-55°C, th...

Embodiment 2

[0057] Take 180Kg of natural rubber, 90Kg of neoprene rubber, 120Kg of nitrile rubber, 120Kg of acetylene carbon black, 45Kg of carbon black N375, 60Kg of phthalic acid, 30Kg of dibutyl phthalate, 45Kg of antimony trioxide, and decabromopropyl ether 15kg, aluminum hydroxide 120Kg, paraffin 45Kg.

[0058] The preparation method is the same as in Example 1.

Embodiment 3

[0060] Take 165Kg of natural rubber, 135Kg of neoprene, 105Kg of nitrile rubber, 150Kg of conductive furnace black, 24Kg of carbon black N375, 30Kg of phthalic acid, 60Kg of dibutyl phthalate, 60Kg of antimony trioxide, and decabromopropyl ether 21kg, aluminum hydroxide 150Kg, paraffin 24Kg.

[0061] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention relates to a coal mine underground rubber hose for drawing out methane, which is prepared by taking natural gum, neoprene and butadiene-acrylonitrile rubber used together as a rubber layer material of the rubber hose, taking acetylene carbon black, conductive channel black, conductive furnace black and extra conductive furnace black as antistatic agents, taking the mixture of carbon black N375, phthalic acid and dibutyl phthalate as a softening agent, taking the mixture of antimony trioxide, decabromo propyl ether, aluminum hydroxide and paraffin as a fire retarding agent, and adopting a process for manufacturing a conventional rubber hose. The coal mine underground rubber hose has antistatic and flame-retardant effects, and through the verifications of the National Coal Mine Support Equipment Quality Supervision and Inspection Center and the National Coal Mine Dustproof Ventilation Safety Product Quality Supervision and Inspection Center, the coal mine underground rubber hose meets the requirements on the safety performance inspection specification standards of HG / T2490-93 and MJ / 191-80 coal mine underground rubber hoses for drawing out the methane in the industry.

Description

technical field [0001] The invention relates to an industrial product for coal mines, in particular to a rubber hose for underground gas drainage in coal mines. The rubber hose for underground gas drainage in coal mines of the present invention is mainly used for short-distance connection of underground gas drainage in coal mines. The invention also relates to a preparation method of the rubber hose. Background technique [0002] In recent years, the safety problems of underground coal mine operations have become increasingly severe, and various coal groups, metallurgical and chemical industries have put forward higher requirements for the quality and safety performance of industrial supplies in related processes during operations. [0003] Gas drainage rubber hoses for underground coal mines are mainly used in coal mines, underground mines and other industries to transport gas with a certain pressure and temperature. Due to the low flame retardancy and high volume resisti...

Claims

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Application Information

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IPC IPC(8): F16L11/12E21F7/00C08L7/00C08L11/00C08L9/02C08K13/02
Inventor 宋泽平
Owner CHANGZHI ZETAI RUBBER & PLASTIC PRODS
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