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Moisture absorbing and water retaining type mining foam generator and preparation method thereof

A foam generating and water-retaining technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of poor wettability and short half-life of foam generating agents, so as to enhance the ability of moisture absorption and water retention, maintain water content, enhance mutual attraction effect

Inactive Publication Date: 2018-11-23
SHANDONG UNIV OF SCI & TECH
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned foam dust reduction technology, the present invention provides a moisture-absorbing and water-retaining foam generating agent for mines and its preparation method to solve the problems of poor wetting performance and short half-life of ordinary foam generating agents, and has strong moisture-absorbing and water-retaining properties. performance, can effectively reduce the dust concentration on the working face

Method used

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  • Moisture absorbing and water retaining type mining foam generator and preparation method thereof

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preparation example Construction

[0075] The invention provides a moisture-absorbing and water-retaining foam generating agent for mines and a preparation method thereof, wherein, according to mass percentage, it comprises the following components: 0.1%-0.2% fatty alcohol polyoxyethylene ether, 0.05%-0.1% secondary Sodium alkylsulfonate, 0.2%~0.4% octadecyltrimethylammonium chloride, 0.02%~0.03% fatty acid diethanolamide, 0.03%~0.05% amine oxide, 0.2%~0.3% lauryl alcohol Potassium ether phosphate, 0.1%~0.2% dioctyl sodium dibutyrate sulfonate, 0.1%~0.2% sodium chloride, 0.05%~0.1% sodium carboxymethyl starch, 0.01%~0.04% Sorbitan monooleate polyoxyethylene ether, the balance is water. The expansion ratio of the foam generating agent is increased to 120-230 times, and the half-life of the foam is increased to 55 minutes without external interference. Due to its high wettability, the foam is measured by a contact angle tester The contact angle of the generating agent to dust is reduced to below 2.5°, which can ...

Embodiment 1

[0085] 1g of fatty alcohol polyoxyethylene ether, 0.6g of sodium secondary alkylsulfonate, 3g of octadecyltrimethylammonium chloride, 0.2g of fatty acid diethanolamide, 0.4g of amine oxide, 2g of lauryl alcohol Potassium ether phosphate, 2 g of dioctyl sodium dibutyrate sulfonate, 1 g of sodium chloride, 0.5 g of sodium carboxymethyl starch, 0.3 g of sorbitan monooleate polyoxyethylene ether were added to 989.0 g of water, make it fully mixed, completely dissolved, and finally configured into 1000kg of foam generating agent solution. In the foam generating agent, the proportion of fatty alcohol polyoxyethylene ether is 0.1%, the proportion of sodium secondary alkylsulfonate is 0.06%, and the proportion of octadecyltrimethylammonium chloride is 0.3%. The proportion of fatty acid diethanolamide is 0.02%, the proportion of amine oxide is 0.04%, the proportion of potassium lauryl ether phosphate is 0.2%, the proportion of dioctyl sulfonate dibutyrate is 0.2%, and the proportion of...

Embodiment 2

[0087] 2g of fatty alcohol polyoxyethylene ether, 0.5g of sodium secondary alkylsulfonate, 4g of octadecyltrimethylammonium chloride, 0.3g of fatty acid diethanolamide, 0.3g of amine oxide, 3g of lauryl Potassium alcohol ether phosphate, 1g of dioctyl sodium dibutyrate sulfonate, 2g of sodium chloride, 1g of sodium carboxymethyl starch, 0.4g of sorbitan monooleate polyoxyethylene ether added to 985.5g In the water, make it fully mixed, completely dissolved, and finally configured into a 1000kg foam generating agent solution. In the foam generating agent, the proportion of fatty alcohol polyoxyethylene ether is 0.2%, the proportion of sodium secondary alkylsulfonate is 0.05%, and the proportion of octadecyltrimethylammonium chloride is 0.4%. The proportion of fatty acid diethanolamide is 0.03%, the proportion of amine oxide is 0.03%, the proportion of potassium lauryl ether phosphate is 0.3%, the proportion of dioctyl sodium sulfonate dibutyrate is 0.1%, and the proportion of c...

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Abstract

The invention discloses a moisture absorbing and water retaining type mining foam generator and a preparation method thereof. The mining foam generator is prepared from the following components by mass percent: 0.1-0.2% of fatty alcohol polyoxyethylene ether, 0.05-0.1% of sodium secondary alkyl sulfonate, 0.2-0.4% of octadecyl trimethyl ammonium chloride, 0.02-0.03% of fatty acid diethanolamide, 0.03-0.05% of amine oxide, 0.2-0.3% of potassium lauryl ether phosphate, 0.1-0.2% of dioctyl sodium sulfosuccinate, 0.1-0.2% of sodium chloride, 0.05-0.1% of sodium carboxymethyl starch, 0.01-0.04% ofsorbitan monooleate polyoxyethylene ether and the balance of water. The potassium lauryl ether phosphate, the dioctyl sodium sulfosuccinate, the sodium chloride and the sodium carboxymethyl starch which can improve foam wetting property are added into the mining foam generator, so that the dust catching ability of foams is effectively improved. The foam generator has higher wettability and solubility; the foams generated by the foam generator are not easily broken, thus better covering and removing dust; the foam generator is high in interception efficiency especially for respirable dust, is high in moisture absorbing and water retaining capacities, and prevents secondary flying dust, thus creating a good working environment and being free from toxic and side effects on a human body.

Description

technical field [0001] The invention relates to the field of underground mine mining, in particular to a moisture-absorbing and water-retaining mine foam generating agent and a preparation method thereof. Background technique [0002] With the improvement of mine mechanization, mine dust has become the primary cause of occupational diseases. Dust is an inherent product of coal crushing, and the excavation process is also a dust-producing process. It is mainly the dust generated by the cutting and friction of coal rocks by the shearer picks, accounting for more than 82% of the working flour dust. In addition, the dust deposited during the ventilation of the working face or the operation process is raised again to form secondary dust, which directly threatens the safe production of the mine and the physical and mental health of the miners. In my country, the allowable concentration of dust in coal mine work is stipulated as follows: when the content of free silica in rock ore...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 于海明谢瑶程卫民王宇王怀远
Owner SHANDONG UNIV OF SCI & TECH
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