Modified phenolic resin injecting paste material for coal and rock mass reinforcing and preparation method

A technology of phenolic resin and grouting materials, applied in the field of chemical materials, can solve problems such as the inability to move objects, affect the reinforcement effect, and poor fluidity, and achieve low viscosity, strong permeability, and strong operability Effect

Inactive Publication Date: 2013-10-02
HUAIBEI WANYUAN IND TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the underground temperature in Taiyuan area is 6-15 0 C, while the underground temperature in the Huaihe River Basin is at 25 0 C-30 0 C; Each mine has different temperature due to different depths. The same material, because of different temperatures, has different curing time, which affects its own permeability. Poor permeability will affect the effect of reinforcement. In addition, polyurethane The viscosity of A and B two-component materials is generally 300mpa. s/25 0 A

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A component preparation

[0026] Put 60 parts of accurately measured formaldehyde, 30 parts of phenol, and 3 parts of barium hydroxide into the reaction kettle, and heat it to 40 0 C stop temperature, automatic temperature rise to 80 0 C heat preservation, sampling and testing every half hour, when the emulsification point is between 15-25ml, add 1.0 parts of oxalic acid to neutralize, add 6 parts of urea when the pH is between 7 and 8, and then dehydrate, sampling and testing every half an hour, When the viscosity is 60-100 mpa. s / 25 0 C, after the sampling test is qualified, discharge the material and seal the package.

[0027] B component preparation

[0028] Put accurately measured 40 parts of phenolsulfonic acid, 40 parts of phosphoric acid, and 20 parts of p-toluenesulfonic acid into the mixing tank, stir for 30 minutes, take samples for inspection, and discharge the materials after passing the test and store them in a sealed manner.

[0029] The detection pr...

Embodiment 2

[0040] A component preparation

[0041] Put 63 parts of accurately measured formaldehyde, 27 parts of phenol, and 6 parts of barium hydroxide into the kettle, and heat it to 40 0 C, stop heating, automatically heat up to 80 0 Keep warm at C, and take samples for testing every 30 minutes. When the emulsification point reaches 15-25ml, add 1.2 parts of oxalic acid to neutralize, add 2.8 parts of urea when the pH value is between 7-8, and then dehydrate. Take samples for inspection every 30 minutes. When the viscosity is 60-100 mpa. s / 25 0 At C, after the sampling test is qualified, the material is discharged and sealed for storage.

[0042] B component preparation

[0043] Put accurately measured 50 parts of phenolsulfonic acid, 30 parts of phosphoric acid, and 20 parts of p-toluenesulfonic acid into the mixing tank, stir for 30 minutes, take samples for testing, and seal them for preservation after passing the test.

[0044] The detection product indicators are as follows:...

Embodiment 3

[0054] A component preparation

[0055] Put 68 parts of accurately measured formaldehyde, 22 parts of phenol, and 5 parts of barium hydroxide into the reactor, and heat it to 40 0 C stops heating and automatically heats up to 80 0 Keep warm at C, and take samples for testing every 30 minutes. When the emulsification point reaches 15-25ml, add 1.4 parts of oxalic acid to neutralize, add 3.6 parts of urea when the pH value is between 7-8, and then dehydrate. Take samples for inspection every 30 minutes. When the viscosity is 60-100 mpa. s, seal the package after sampling and testing.

[0056] B component preparation

[0057] Put 60 parts of phenolsulfonic acid accurately measured, 20 parts of phosphoric acid, and 20 parts of p-toluenesulfonic acid into the mixing tank, stir for 30 minutes, take samples for testing, and seal and store after passing the test.

[0058] The detection product indicators are as follows:

[0059] Viscosity 25 0 C A component 98 mpa. s B componen...

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PUM

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Abstract

The invention discloses a modified phenolic resin injecting paste material for coal and rock mass reinforcing and a preparation method and aims to solve the problem that a reinforcing effect is not ideal by adopting a traditional material. The preparation method is characterized by comprising the following steps of preparing a component A from phenol, formaldehyde, barium hydroxide, urea and oxalic acid, preparing a component B from phenolsulfonic acid, phosphoric acid and para-toluenesulfonic acid, and then, mixing the component A and the component B in weight ratio of (1-4):1. The material disclosed by the invention is low in viscosity and extremely excellenent in liquidity, can permeate into very thin cracks, and is adjustable on site in curing time. The heat value of the material disclosed by the invention is lower than similar materials in markets for at least 250 DEG C, and is good in fire resistance. The raw materials are completely domesticated, and are autonomous in property right, and any technical barriers do not exist. The material disclosed by the invention is strong in operability, small in viscosity and strong in permeability and is simple to operate.

Description

technical field [0001] The invention relates to a chemical material, in particular to a modified phenolic resin grouting material for coal and rock mass reinforcement. Background technique [0002] In the process of coal mine production, due to geological changes, coal rock formations are fractured and broken, and landslides and subsidences caused by pressure during the mining process have greatly affected the production efficiency of enterprises and the life safety of miners. [0003] In the last century, the reinforcement materials used in underground coal mines mainly used cement slurry injection as the advanced reinforcement and support of coal and rock mass, but the cement slurry reinforcement and solidification time is too long, and it takes about a week to fully solidify, which greatly reduces production efficiency and has been cancelled. . [0004] At the beginning of this century, my country introduced polyurethane materials from abroad for advanced reinforcement a...

Claims

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Application Information

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IPC IPC(8): C08L61/34C08G14/08
Inventor 赵军冯万良张子光刘谦
Owner HUAIBEI WANYUAN IND TRADE
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