Wet type dust-laying agent composition and use method thereof

A technology of dust suppressant and composition, applied in chemical instruments and methods, dust prevention, earthwork drilling, etc., can solve the problems of inability to completely solve the problem of dust, hidden dangers of accidents, and limited effect.

Active Publication Date: 2010-05-26
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vast majority of coal dust is difficult to be wetted by water. The use of water-based wet dust suppression technology cannot completely solve the dust problem, and its effect is limited.
In the prior art, the dust concentration of many working faces using wet dust suppression exceeds 100mg / m 3 , which exceeds the maximum concentration required by the relevant national standards, which is likely to cause accidents and harm the health of workers

Method used

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  • Wet type dust-laying agent composition and use method thereof
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  • Wet type dust-laying agent composition and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The wet type dust suppressant composition mainly comprises the following components according to weight percentage: 0.05% sodium dodecylsulfonate, 0.05% sodium dodecylbenzenesulfonate, 99.789% water and 0.111% calcium chloride , that is to control the calcium chloride containing 0.01 moles of calcium chloride per dust lifting agent.

[0048] Such as image 3 As shown, the above-mentioned wet type dust suppressant composition can be applied to coal mines through the following steps, which includes the following steps:

[0049] a. Fully mix 0.05% sodium dodecylsulfonate, 0.05% sodium dodecylbenzenesulfonate, 99.789% water and 0.111% calcium chloride according to the weight percentage, and control the mixture per liter Calcium chloride containing 0.01 moles in the water to prepare a wet type dust suppressant, and put the wet type dust suppressant into the water tank 11;

[0050] b. When the working face in the coal mine is working, start the clean water pump 14, and simu...

Embodiment 2

[0059] The wet dust suppressant composition is composed of the following components according to weight percentage: 0.05% sodium dodecylsulfonate, 0.05% sodium dodecylbenzenesulfonate, 99.789% water and 0.111% calcium chloride , that is to control the calcium chloride containing 0.01 moles of calcium chloride per dust lifting agent.

[0060] Such as image 3 As shown, the above-mentioned wet type dust suppressant can be applied to coal mines through the following steps, which includes the following steps:

[0061] a. Fully mix 0.05% sodium dodecylsulfonate, 0.05% sodium dodecylbenzenesulfonate, 99.789% water and 0.111% calcium chloride according to the weight percentage, and control the mixture per liter Calcium chloride containing 0.01 moles in the water to prepare a wet type dust suppressant, and put the wet type dust suppressant into the water tank 11;

[0062] b. When the working face in the coal mine is working, start the clean water pump 14, and simultaneously start th...

Embodiment 3

[0067] The difference between embodiment 3 and embodiment 2 is that the weight percentage of each component is different, and this wet type dust suppressant composition is made up of following components according to weight percentage: 0.06% sodium lauryl sulfonate, 0.06% Sodium dodecylbenzene sulfonate, 99.547% water and 0.333% calcium chloride, and controlled to contain 0.03 moles of calcium chloride per dust elevating agent.

[0068] Such as image 3 As shown, the above-mentioned wet type dust suppressant composition can be applied to the spray dust suppression system of coal mine through the following steps, which includes the following steps:

[0069] d. Fully mix 0.06% sodium dodecylsulfonate, 0.06% sodium dodecylbenzenesulfonate, 99.547% water and 0.333% calcium chloride according to the weight percentage, and control the mixture per liter Containing 0.03 moles of calcium chloride in the water to prepare a wet type dust suppressant, and put the wet type dust suppressan...

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Abstract

The invention discloses a wet type dust-laying agent composition and a use method thereof. According to the percentage by weight, 0.04-0.06% of sodium dodecyl sulfate, 0.04-0.06% of sodium dodecyl benzene sulfonate, 99.547-99.91% of water and 0.111-0.333% of calcium chloride are fully mixed; and the mixed liquid is pressed into a spraying dust-laying system of a working face in the coal mine for spraying. The sodium dodecyl sulfate and the sodium dodecyl benzene sulfonate are the substances with surface activities and the molecules of the two substances are formed by hydrophilic groups and hydrophobic groups. The hydrophobic groups are generally formed by longer carbon chains, have the characteristics close to the characteristics of the molecules on the surface of coal dust and are easierto carry out absorption than water molecules, thereby improving the dust seizing efficiency of water, ensuring the dust-laying rate of the dust-laying agent to exceed 90% and saving the water consumption for dust laying.

Description

technical field [0001] The invention relates to a dust-reducing agent for removing coal dust in coal mines and a using method thereof, in particular to a wet type dust-reducing agent composition and a using method thereof. Background technique [0002] At present, the dust concentration of fully mechanized mining face can reach 2500 mg / m without dust prevention measures in coal mining face in my country. 3 -3000mg / m 3 , while the dust situation of fully mechanized caving work is more serious than that of general fully mechanized mining face. When the coal shearer is cutting coal, moving frame and coal setting in parallel, the instantaneous original total dust concentration of some coal mines is even as high as 8000mg / m 3 -10000mg / m 3 . Even if ventilation and other measures are taken, the condition of most working faces is still quite bad, and the dust concentration in the downwind direction of the shearer can reach a maximum of 10000mg / m 3 The above has seriously exceed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22E21F5/02E21F5/06
Inventor 程卫民周刚聂文杨鹏孙鑫
Owner SHANDONG UNIV OF SCI & TECH
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