Multifunctional liquid foam used for underground coal mine and using method thereof

A multi-functional, liquid technology, used in mining equipment, earth-moving drilling, safety devices, etc., can solve the problems of difficult liquid retention, short stabilization time, easy to flow away, etc. The effect of preventing the deterioration of the solution

Inactive Publication Date: 2014-06-25
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main means of removing hydrogen sulfide and other acid gases in mines are to establish an independent ventilation system to dilute or pump hydrogen sulfide, and to infuse or spray hydrogen sulfide absorption solution. The first method is not ideal for goafs with high hydrogen sulfide content. The second way is that the injection distance of the liquid absorbent is short, and the spraying is greatly affected by the spatial layout. The liquid is not easy to stay in the gaps of the goaf, and it is easy to flow away. The stabilization time is short and the loss is large.
[0003] The use of inhibitors to prevent spontaneous combustion of coal is an effective technology being used at home and abroad. The traditional method of using inhibitors is generally to inject or directly spray the inhibitor soluti

Method used

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  • Multifunctional liquid foam used for underground coal mine and using method thereof

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Example Embodiment

[0027] Example 1

[0028] Multifunctional liquid foam used for underground coal mine operations. Its components are calculated by mass percentage and consist of whisker inhibitor, quaternary ammonium salt cationic surfactant, nonionic surfactant, auxiliary agent and water. The inhibitor is aluminum borate whisker, which accounts for 0.5% of the total mass of the liquid foam, and the quaternary ammonium salt cationic surfactant is dodecyltrimethylammonium chloride, which accounts for 5% of the total mass of the liquid foam. Non-ionic surface active The agent is a polyoxyethylene alkanolamide with 3 to 4 moles of ethylene oxide, which accounts for 5% of the total mass of the liquid foam, and the auxiliary agent is a foam stabilizer and a solubilizer, which accounts for 5% of the total mass of the liquid foam. The foam stabilizer is modified polyanionic cellulose, which accounts for 50% of the weight of the auxiliary agent, the solubilizer is Tween-20, and the balance is water.

Example Embodiment

[0029] Example 2

[0030] Multifunctional liquid foam used for underground coal mine operations. Its components are calculated by mass percentage and consist of whisker inhibitor, quaternary ammonium salt cationic surfactant, nonionic surfactant, auxiliary agent and water. The inhibitor is magnesium borate whisker, which accounts for 5% of the total mass of liquid foam, and the quaternary ammonium salt cationic surfactant is dodecyl dimethyl benzyl ammonium chloride, which accounts for 0.5% of the total mass of liquid foam, non-ionic The surfactant is fatty alcohol ether ammonium sulfate, which accounts for 15% of the total mass of liquid foam, and the auxiliary agent is foam stabilizer and solubilizer, which accounts for 10% of the total mass of liquid foam. The foam stabilizer is sodium carboxymethyl cellulose, which accounts for 80% of the weight of the auxiliary agent, the solubilizer is pentaerythritol, and the balance is water.

Example Embodiment

[0031] Example 3

[0032] Multifunctional liquid foam used for underground coal mine operations. Its components are calculated by mass percentage and consist of whisker inhibitor, quaternary ammonium salt cationic surfactant, nonionic surfactant, auxiliary agent and water. The inhibitor is basic magnesium sulfate whisker, which accounts for 10% of the total mass of liquid foam, and the quaternary ammonium salt cationic surfactant is stearyl dimethyl hydroxyethyl ammonium nitrate, which accounts for 30% of the total mass of liquid foam. The non-ionic surfactant is ammonium laureth sulfate, which accounts for 0.5% of the total mass of liquid foam. The auxiliary agent is foam stabilizer and solubilizer, which accounts for 3% of the total mass of liquid foam. Among them, the foam stabilizer is coconut oil II. Ethanolamide accounts for 50% of the weight of the additives, the solubilizer is polyoxyethylene polypropylene block polyether, and the balance is water.

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Abstract

The invention belongs to the technical field of coal mine safety, and patricianly relates to multifunctional liquid foam used for an underground coal mine and a using method of the multifunctional liquid foam. The multifunctional liquid foam used for the underground coal mine comprises, by mass, 0.5-10% of crystal whisker stopping agents, 0.5-30% of quaternary ammonium salt cationic surface active agents, 0.5-30% of non-ionic surface active agents and 0-10% of additives, the balance of water. The multifunctional liquid foam preparation method and using method are simple, bring convenience for use and manual operation, and are strong in applicability because of being suitable for mines rich in acid gases like sulfuretted hydrogen and sulfur dioxide, tunnels with large coal spontaneous combustion tendency, mine working faces and the like and particularly suitable for mine goaves.

Description

Technical field [0001] The invention belongs to the technical field of coal mine safety, and specifically relates to a multifunctional liquid foam used in coal mines and a method of use thereof. Background technique [0002] Underground coal mines often contain acid gases such as hydrogen sulfide or sulfur dioxide. They have a strong irritating smell, are very toxic to the human body, and are flammable and explosive, and will corrode the underground machinery and equipment. Therefore, removing the underground acid gas can improve the working environment of workers. , It is of great significance to increase the safety of mine operation. At present, the main methods for removing acid gases such as hydrogen sulfide in mines include establishing an independent ventilation system to dilute or drain hydrogen sulfide, instilling or spraying hydrogen sulfide absorption solution. The first method is not ideal for goafs with high hydrogen sulfide content. The second method has a short inj...

Claims

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Application Information

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IPC IPC(8): E21F5/04E21F5/06
Inventor 杨绍斌杨森董伟王继仁
Owner LIAONING TECHNICAL UNIVERSITY
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