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Permeable water plugging modified phenolic resin injecting paste material for underground coal mine and preparation method

A technology of phenolic resin and grouting materials, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as not fundamentally solving water leakage, unable to withstand long-term water pressure, and unsatisfactory water blocking effect, etc. Achieve the effect of simple construction, high pressure and fast curing time

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

Guidance and drainage cannot fundamentally solve the water leakage situation, and the existing grouting method is mainly to use polyurethane to drill holes in the leakage area and use the characteristics of rapid solidification of polyurethane to seal the coal and rock cracks to achieve water effect
[0004] However, during the polymerization process of polyurethane materials, the reaction to water is too strong, mainly manifested in the rapid foaming and hollowing when encountering water, which cannot withstand long-term water pressure, and the water blocking effect is not ideal, especially in China at 10m per hour. 3 In the case of low water flow, most of the methods of guiding and pumping are used to ensure safe production in the well

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A component preparation

[0025] Put 30 parts of phenol, 60 parts of formaldehyde, and 4 parts of barium hydroxide into the reaction kettle, heated to 40 0 C stops heating and automatically heats up to 70 0 C heat preservation, sampling and testing every 30 minutes, when the emulsification point reaches 25-35ml, add 1 part of oxalic acid for neutralization, when the pH reaches 7-8, add 5 parts of urea for dehydration, sample and test every 30 minutes, when the viscosity is 40 —80 mpa. s (25 0 C), re-sampling and testing, qualified discharge sealed packaging;

[0026] B component preparation

[0027] Put 40 parts of phenolsulfonic acid, 40 parts of phosphoric acid, and 20 parts of p-toluenesulfonic acid into the mixing tank for stirring. After 30 minutes, take a sample for inspection. After passing the test, discharge and seal the package.

[0028] The detection product indicators are as follows:

[0029] Viscosity 25 0 C A component 60 mpa. s B component 25 mpa....

Embodiment 2

[0039] A component preparation

[0040] Put 65 parts of standard metered formaldehyde, 25 parts of phenol, and 5 parts of barium hydroxide into the reaction kettle, and heat to the material temperature of 40 0 C, stop heating, automatically heat up to 65 0 Keep warm at C, and take samples for testing every 30 minutes. When the emulsification point reaches 35-40ml, add 1.2 parts of oxalic acid to neutralize. When the pH value reaches 7-8, add 3.8 parts of urea to dehydrate. Take samples every 30 minutes. When the viscosity is 40-80 mpa. s (25 0 C), take a sample for inspection, and release the material and seal it for packaging after passing the test;

[0041] B component preparation

[0042] Put 60 parts of phenolsulfonic acid, 20 parts of phosphoric acid, and 20 parts of p-toluenesulfonic acid into the mixing tank for stirring, and take samples for testing after 30 minutes. After passing the test, discharge and seal the package.

[0043] The detection product indicators ...

Embodiment 3

[0053] A component preparation

[0054] Put 64 parts of standard metered formaldehyde, 22 parts of phenol, and 6 parts of barium hydroxide into the reaction kettle, and heat it to a material temperature of 40 0 C, stop heating, automatically heat up to 65 0 Keep warm at C, and take samples for testing every 30 minutes. When the emulsification point reaches 35-40ml, add 1.5 parts of oxalic acid for neutralization, when the pH value reaches 7-8, add 6.5 parts of urea for dehydration, and take samples for inspection every 30 minutes. When the viscosity is 40-80 mpa. s (25 0 C), then take a sample for testing, and seal the package after passing the test;

[0055] B component preparation

[0056]Put 80 parts of standard metered phenolsulfonic acid, 10 parts of phosphoric acid, and 10 parts of p-toluenesulfonic acid into a stirring tank for stirring, take a sample for inspection after 30 minutes, and release the material for sealed packaging after passing the test.

[0057] The...

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Abstract

The invention discloses a permeable water plugging modified phenolic resin injecting paste material for an underground coal mine and a preparation method and aims to solve the problem that a water plugging 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, oxalic acid and urea, 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 1:1. The material disclosed by the invention is low in viscosity and high in liquidity and is capable of completely plugging ultra-thin cracks, is high in curing time which is adjustable on site within a range of 5-60 seconds; a polymer cannot be pulverized, is stable when meeting water and is capable of permanently plugging the cracks. The material reaches a fire-retardant level and is environmentally friendly; production raw materials are completely domesticated and are pollution-free; the construction is simple; the operation is simple and easy to implement; the environment cannot be polluted during a production process, and the health of workers is not influenced.

Description

technical field [0001] The invention relates to a seepage and water blocking material for underground coal mines, in particular to a modified phenolic resin grouting material. Background technique [0002] In the process of coal mining, due to geological changes, the coal rock formations are fractured and broken, and rich formation water flows into the roadway through the broken cracks, which not only brings inconvenience to safe production, but also increases with the long-term erosion of the water flow. Large, it may also cause roof fall, collapse, etc., which will affect the lives of miners. [0003] Coal mines mainly adopt the methods of guiding, pumping and injecting chemical slurry to control the underground water. Guidance and drainage cannot fundamentally solve the water leakage situation, and the existing grouting method is mainly to use polyurethane to drill holes in the leakage area and use the characteristics of rapid solidification of polyurethane to seal the c...

Claims

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Application Information

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IPC IPC(8): C09K8/44C08G14/08
Inventor 赵军冯万良张子光刘谦
Owner HUAIBEI WANYUAN IND TRADE
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