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Foam dedusting agent for mine

A dust-removing agent and foam technology, which is applied in the fields of dust prevention, mining equipment, fire prevention, etc., can solve the problems of late start of chemical dust suppressants, no in-depth research and field application, etc., and achieve simple processing, preparation and construction methods, and dust reduction. Long-lasting, wide-ranging effects

Inactive Publication Date: 2009-03-18
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research and start of chemical dust suppressants in our country is relatively late, and has not yet been deeply studied and well applied on site.

Method used

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  • Foam dedusting agent for mine
  • Foam dedusting agent for mine
  • Foam dedusting agent for mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 12kg of sodium dodecylbenzenesulfonate, 5kg of sodium succinic acid diester sulfonate, 5kg of coconut oil diethanolamide, 0.2kg of carboxymethyl starch, 0.4kg of formaldehyde, and 1kg of urea into 76.4kg of water. Stir fully for 20-30 minutes to make 100kg foam dust remover. In the dust remover, the content of sodium dodecylbenzene sulfonate is 12%, sodium succinate diester sulfonate is 5%, coconut oil diethanolamide is 5%, carboxymethyl starch is 0.2%, and formaldehyde is 0.4% %, urea is 1%, and water is 76.4%. In order to reduce the stirring time, it can be stirred into a high-concentration solution, and then diluted with water to the required ratio. After the raw material components are completely dissolved, the foam dust remover is prepared. The prepared foam dedusting agent can be loaded into the foaming device for foaming operation. The dust removal rate of the foam dust remover with this formula reaches 95.67% for the whole dust and 85.64% for the respira...

Embodiment 2

[0021] Take 18kg of sodium dodecylbenzenesulfonate, 3kg of sodium succinic acid diester sulfonate, 4kg of coconut oil diethanolamide, 0.3kg of carboxymethyl starch, 0.2kg of formaldehyde, and 1.5kg of urea into 73kg of water. Stir fully for 20-30 minutes to make 100kg foam dust remover. In the dust remover, the content of sodium dodecylbenzene sulfonate is 18%, sodium succinate diester sulfonate is 3%, coconut oil diethanolamide is 4%, carboxymethyl starch is 0.3%, formaldehyde is 0.2 %, urea is 1.5%, and water is 73%. Others are the same as embodiment 1. The dust removal rate of the foam dust remover with this formula reaches 95.81% for the whole dust and 85.79% for the respirable dust.

Embodiment 3

[0023] Get 16kg of ammonium dodecylbenzenesulfonate, 4kg of sodium succinic acid diester sulfonate, 5kg of coconut oil diethanolamide, 0.3kg of carboxymethyl starch, 0.3kg of formaldehyde, and 1.6kg of urea into 72.8kg of water. Stir fully under the pressure for 20-30 minutes to make 100kg foam dust remover. In the dust remover, the content of ammonium dodecylbenzene sulfonate is 16%, sodium succinate diester sulfonate is 4%, coconut oil diethanolamide is 5%, carboxymethyl starch is 0.3%, and formaldehyde is 0.3% %, urea is 1.6%, and water is 72.8%. Others are the same as embodiment 1. The dust removal rate of the foam dust remover with this formula reaches 95.21% for the whole dust and 85.08% for the respirable dust.

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Abstract

The invention relates to a froth dedusting agent used in mine, belonging to the field of coal mining, and is suitable for coal mine underground mining dedusting, metallurgical mines mining dedusting and digging tunnel dedusting. The forth dedusting agent comprises 10 to 20 percent of dodecyl benzene sulfonate, 2 to 5 percent of succinic acid diester sulfonate, 4 to 8 percent of CDEA, 1 to 2 percent of addition agent and water. The mine dedusting agent has the advantages of high frothing percentage, long dedusting time, simple technical process and operation, no corrosion action or toxicity and side effect of the independent components and the solution and good dedusting effect, the dust laying rate to all dust can reach above 95 percent, and the dust laying rate to respirable dust can reach above 85 percent. The dedusting agent can improve the operating environment of underground working face effectively and has good effect on reducing dust hazard and realizing safe production.

Description

Technical field: [0001] The invention belongs to the field of coal mining, and relates to a foam dedusting agent for underground coal mines, which can produce highly stable foam and has high dust removal efficiency, and can be used for dust control in coal mining, metal mining and tunnel excavation. Background technique [0002] Coal mine production is a key industry of productive dust hazards. At present, my country's coal mining is dominated by underground mining. Due to the narrow space for underground coal mining, variable working locations, and poor ventilation, a large amount of dust is generated during underground coal mining, excavation, reloading, and transportation. Without dust prevention measures, the dust concentration in the fully mechanized mining face can be high. Up to 2500~3000mg / m 3 , some coal mines are even as high as 8000-10000mg / m 3 above. Excessive concentration of underground dust can cause pneumoconiosis, which seriously threatens the personal s...

Claims

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Application Information

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IPC IPC(8): B01F17/02E21F5/06C09K23/02
Inventor 张英华黄志安高玉坤刘雪琴刘金
Owner UNIV OF SCI & TECH BEIJING
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