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Eco-friendly high-coagulability dust suppressant

A friendly, dust suppressant technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of high evaporation rate, poor dust suppression effect on the working face, low moisture retention, etc., to achieve good wettability, Lower surface tension and good compatibility

Active Publication Date: 2019-07-05
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned dust suppressants still have obvious defects: after the dust suppressant is sprayed on the coal dust, the evaporation rate is very high, and the moisture retention type is low, resulting in poor dust suppression effect on the working face

Method used

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  • Eco-friendly high-coagulability dust suppressant
  • Eco-friendly high-coagulability dust suppressant
  • Eco-friendly high-coagulability dust suppressant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh respectively according to the following quality standards: 3 kg of sodium di-sec-octyl maleate sulfonate, 2.5 kg of lauryl ether phosphate, 0.3 kg of sodium dodecylbenzene sulfonate, sodium alginate grafted epichlorohydrin 5kg, coconut oil fatty acid diethanolamide 1kg, cocamidopropyl betaine 5kg, sodium lauryl sulfonate 1kg, Tween 60 3kg, lauryl glucoside 10kg, Span 80 5kg, calcium chloride 7kg . Add the above formula raw materials into 957.2kg of clear water, and prepare 1000kg of eco-friendly high coagulation dust suppressant after fully mixing. The dust suppressant has excellent coagulation acceleration performance and good water retention performance.

[0031] Among them, in this formula, the percentages of various raw materials are: 0.30% sodium dioctyl maleate sulfonate, 0.25% lauryl ether phosphate, 0.03% sodium dodecylbenzenesulfonate, Sodium alginate grafted epichlorohydrin 0.50%, coconut oil fatty acid diethanolamide 0.1%, cocamidopropyl betaine 0.50%...

Embodiment 2

[0034] Weigh respectively according to the following quality standards: 2.5 kg of sodium di-sec-octyl maleate sulfonate, 3 kg of lauryl ether phosphate, 0.5 kg of sodium dodecylbenzene sulfonate, sodium alginate grafted epichlorohydrin 6kg, coconut oil fatty acid diethanolamide 1.5kg, cocamidopropyl betaine 3.5kg, sodium lauryl sulfonate 2kg, Tween 60 2kg, lauryl glucoside 15kg, Span 80 4kg, chloride Calcium 8kg. Add the above formula raw materials into 952kg of clear water, and prepare 1000kg of eco-friendly high coagulation dust suppressant after fully mixing. The dust suppressant has excellent coagulation acceleration performance and good water retention performance.

[0035] Among them, in this formula, the percentages of various raw materials are: 0.25% sodium di-sec-octyl maleate sulfonate, 0.30% lauryl ether phosphate, 0.05% sodium dodecylbenzenesulfonate, Sodium alginate grafted epichlorohydrin 0.6%, coconut oil fatty acid diethanolamide 0.15%, cocamidopropyl betaine...

Embodiment 3

[0038] Weigh respectively according to the following quality standards: 2.8 kg of sodium di-sec-octyl maleate sulfonate, 2.6 kg of lauryl ether phosphate, 0.4 kg of sodium dodecylbenzene sulfonate, sodium alginate grafted epoxy chloride Propane 5.5kg, Coconut Oil Fatty Acid Diethanolamide 1.4kg, Cocamidopropyl Betaine 4kg, Sodium Lauryl Sulfonate 1.5kg, Tween 60 2.5kg, Lauryl Glucoside 13kg, Span 80 4.5 kg, calcium chloride 7.5kg. Add the above formula raw materials into 954.3kg of clear water, and prepare 1000kg of eco-friendly high coagulation dust suppressant after fully mixing. The dust suppressant has excellent coagulation acceleration performance and good water retention performance.

[0039]Among them, in this formula, the percentages of various raw materials are: 0.28% sodium di-sec-octyl maleate sulfonate, 0.26% lauryl ether phosphate, 0.04% sodium dodecylbenzenesulfonate, Sodium alginate grafted epichlorohydrin 0.55%, coconut oil fatty acid diethanolamide 0.14%, co...

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Abstract

The invention discloses an eco-friendly high-coagulability dust suppressant. The eco-friendly high-coagulability dust suppressant comprises 0.2-0.35% of dis-sec-octyl maleate sodium sulfonate, 0.1-0.3wt% of lauryl ether phosphate, 0.01-0.08% of sodium dodecylbenzenesulfonate, 0.4-0.68% of sodium alginate grafted epichlorohydrin, 0.08-0.2% of coconut oil fatty acid diethanolamide, 0.3-0.5% of cocamidopropyl betaine, 0.05-0.2% of sodium dodecyl sulfate, 0.1-0.32% of Tween 60, 0.4-2% of dodecyl glucoside, 0.3-0.6% of Span 80, 0.6-0.8% of calcium chloride, and the balance of water. Spray drops wet dust particles and adhere to the surfaces of the dusts in the use process of the dust suppressant, so the dusts rapidly fall to prevent dust reentrainment.

Description

technical field [0001] The invention relates to the technical field of wet dust control and dust suppression agents for working faces in underground coal mines, in particular to a highly condensable dust suppression agent. Background technique [0002] With the acceleration of mechanized production efficiency in coal mines, a large amount of dust will be generated in the process of coal mining, crushing, screening, transportation, storage and coal rock crushing. According to measurements, especially in the widespread use of modern advanced fully mechanized mining technology, the amount of coal mining has increased significantly, but at the same time the coal dust produced will also increase rapidly, resulting in an increase in the concentration of underground coal dust, and the coal dust in fully mechanized mining and tunneling faces The concentration has reached 1400mg / m 3 Above, some coal mine dust concentration is even higher. In the process of coal transportation and m...

Claims

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Application Information

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IPC IPC(8): C09K3/22C08L5/04C08L5/02C08J3/24
CPCC09K3/22C08J3/246C08J2305/04C08J2405/04C08J2305/02C08J2405/02
Inventor 聂文闫嘉祎张海涵修子豪鲍秋王鸿坤晋虎周文杰
Owner SHANDONG UNIV OF SCI & TECH