Double-aggregate composite polymer, and pouring method and application thereof

A composite, high-polymer technology, used in earth-moving drilling, wellbore lining, tunnel lining, etc., to achieve the effect of enhancing antistatic and flame retardancy, low price and reducing use cost

Active Publication Date: 2019-01-15
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the mechanical problems that often occur in the above coal mine grouting process, the present invention provides a double-aggregate composite high polymer and its grouting method and application

Method used

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  • Double-aggregate composite polymer, and pouring method and application thereof
  • Double-aggregate composite polymer, and pouring method and application thereof
  • Double-aggregate composite polymer, and pouring method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of grouting method of double-aggregate composite high polymer for coal seam reinforcement, such as figure 1 As shown, the steps are as follows:

[0036] (1) Select 7 parts of pebbles with a particle size of 6 mm and 35 parts of stone powder with a particle size of 2 mm to measure the bulk density and apparent density of the pebbles and stone powder.

[0037] (2) Modify the screened coarse aggregate 14 and fine aggregate 15 with a modifier, treat with a modifier, and transport 30 parts of polyoxypropylene polyol in container I1 through a pneumatic lifting pump Go to the mixing chamber I4 and mix and stir 7 parts of modified pebbles for 3 minutes, add 5 parts of barium stearate for dispersion treatment until the outer layer is evenly distributed, then add 3 parts of dimethylthiotoluenediamine in sequence, 3 parts of triphenyl phosphate and 3 parts of stannous octoate were stirred in the mixing chamber I4 for 3 minutes and then sent to the grouting pump 6, and the ...

example 2

[0045] A kind of grouting method of double-aggregate composite high polymer for air plugging in coal seam, such as figure 1 As shown, the steps are as follows:

[0046] (1) Select 35 pieces of crushed stone with a particle size of 7mm and 7 pieces of silicon powder with a particle size of 3mm, and measure the bulk density and apparent density of the crushed stone and silicon powder.

[0047] (2) Modify the screened coarse aggregate 14 and fine aggregate 15 with a modifier respectively. After treating with the modifier, pass 18 parts of polyoxypropylene polyol in container I1 through a pneumatic lifting pump Transport to the mixing chamber I4 and mix with 35 parts of modified gravel for 3 minutes, add 5 parts of barium stearate for dispersion treatment until the outer layer is evenly distributed, then add 3 parts of dimethylthiotoluenediamine in turn , 3 parts of triphenyl phosphate and 3 parts of stannous octoate were stirred in the mixing chamber I4 for 3 minutes and then se...

Embodiment 3

[0055] A kind of grouting method of double-aggregate composite high polymer for coal mine roof filling, such as figure 1 As shown, the steps are as follows:

[0056] (1) Select 40 parts of coarse waste residue with a particle size of 8 mm and 8 parts of fly ash with a particle size of 4 mm to measure the bulk density and apparent density of the coarse waste residue and fly ash.

[0057] (2) The screened coarse aggregate 14 and fine aggregate 15 are respectively modified with a modifier. After the modifier is used, 45 parts of polyoxypropylene polyol in the container I1 are passed through a pneumatic lifting pump Transport to the mixing chamber I4 and mix and stir 40 parts of the modified coarse waste residue for 0.5min, add 5 parts of barium stearate for dispersion treatment until the outer layer is evenly distributed, then add 4 parts of dimethylthiotoluene in sequence Diamine, 4 parts of triphenyl phosphate and 4 parts of stannous octoate were stirred in the mixing chamber ...

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Abstract

The invention provides a double-aggregate composite polymer, and relates to the technical field of coal mine safety materials, wherein the double-aggregate composite polymer includes the following rawmaterials by mass: 20-100 parts of polyether polyol, 20-100 parts of polymerized MDI, 5-10 parts of a dispersant, 5-10 parts of a catalyst, 5-10 parts of a chain extender, 3-10 parts of a flame retardant, 7-40 parts of a coarse aggregate, and 7-40 parts of a fine aggregate. The double-aggregate composite polymer is suitable for coal mine coal seam filling and reinforcing and leaked air blocking;the composite polymer has low manufacturing cost, and the probability of accidents in underground coal mine after the composite polymer is grouted for use can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of coal mine safety materials, in particular to a double-aggregate composite high polymer and a grouting method and application thereof. Background technique [0002] In recent years, the safety material for grouting in coal mines is a new concept of safe polymers. Make a significant contribution to safe production. With the increase of mine mining depth in our country, during the excavation and repair of coal mine roadway, because the surrounding rock of the roadway is extremely easy to break, and the loose and broken range is large, accidents of roof fall and chipping are very easy to occur, which not only causes unsafe construction, but also The section of the roadway is irregular, which affects the safety of the mine. [0003] Chemical grouting reinforcement and filling are effective measures to prevent the above coal mine accidents. Although chemical grouting is effective in breaking coal and rock mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/38C08K9/04C08K3/34C08K11/00C08K7/26E21D11/10
CPCC08G18/4854C08G18/6685C08K3/02C08K3/34C08K7/26C08K9/04C08K11/005C08K2003/023E21D9/002E21D11/10
Inventor 陆伟李金亮秦传睿亓冠圣程卫民王栋贺正龙孔彪
Owner SHANDONG UNIV OF SCI & TECH
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