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Carbon monoxide composite inhibition absorbent for coal mine and preparation method thereof

A carbon monoxide and absorbent technology, used in chemical instruments and methods, separation methods, gas treatment and other directions, can solve problems such as endangering the physical and mental health of operators, changing the limit of underground explosive gas, and exceeding the concentration of CO, and achieves inhibition of oxygen-containing functional groups. output, the realization of large-scale industrial production, the effect of reducing coal temperature

Pending Publication Date: 2021-08-17
CCTEG SHENYANG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the CO concentration exceeds the limit in the mining process of low-metamorphic coal, which affects the judgment of the internal cause of the fire, endangers the physical and mental health of the workers, and changes the limit of the underground explosion gas, and provides a composite carbon monoxide inhibitor for coal mines. Absorbent and preparation method thereof, inhibiting and absorbing coal seam oxidation to generate CO

Method used

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  • Carbon monoxide composite inhibition absorbent for coal mine and preparation method thereof
  • Carbon monoxide composite inhibition absorbent for coal mine and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A carbon monoxide composite suppression absorbent for coal mines, consisting of the following components in weight percent: 3.5% CO absorbent, 17.54% CO absorbent solubilizer, 8.7% CO generation inhibitor, 0.14% deoxygenation agent, 0.42% stabilizer and 69.7% water.

[0025] The CO absorbents are all cuprous chloride.

[0026] The CO absorbent solubilizer is a mixture of ammonium chloride, tartaric acid, and citric acid, and the weight ratio of the three is 48:1:1.

[0027] All of the CO production inhibitors are urea.

[0028] The oxygen scavenger is acetone oxime.

[0029] The stabilizer is hydroxypropyl methylcellulose.

[0030] A preparation method of a carbon monoxide composite suppression absorbent for coal mines, comprising the following steps:

[0031] (1) prepare each raw material by above-mentioned proportioning;

[0032] (2) Add an oxygen scavenger in water, and let it stand for 2 hours to react;

[0033] (3) Take half of the water in step (2), add the ...

Embodiment 2

[0041] A composition ratio of a carbon monoxide composite suppression absorbent for coal mines:

[0042] CO absorbent 100kg;

[0043] CO absorbent solubilizer 499.3kg;

[0044] CO generation inhibitor 210kg;

[0045] Oxygen scavenger 4kg;

[0046] Stabilizer 2kg;

[0047] 2000kg of water.

[0048] The CO absorbent is cuprous chloride.

[0049] The CO absorbent solubilizer is ammonium chloride;

[0050] The CO generation inhibitor is a mixture of urea and calcium chloride, wherein urea is 200kg and calcium chloride is 10kg.

[0051] The oxygen scavenger is acetone oxime;

[0052] Described stabilizing agent is hydroxypropyl methylcellulose;

[0053] A preparation method of a carbon monoxide composite suppression absorbent for coal mines, comprising the following steps:

[0054] (1) Prepare 2000kg of water according to the above-mentioned composition ratio, 4kg of oxygen scavenger (acetone oxime), 100kg of CO absorbent (cuprous chloride), 500kg of CO absorbent solubiliz...

Embodiment 3

[0064] A composition ratio of a carbon monoxide composite suppression absorbent for coal mines:

[0065] CO absorbent 50kg;

[0066] CO absorbent solubilizer 250kg;

[0067] CO generation inhibitor 803kg;

[0068] Oxygen scavenger 4kg;

[0069] Stabilizer 1.55kg;

[0070] 2000kg of water.

[0071] The CO absorbent is cuprous chloride.

[0072] The CO absorbent solubilizer is a mixture of ammonium chloride and citric acid;

[0073] The CO formation inhibitor is a mixture of urea, calcium chloride, sodium chloride and magnesium chloride, wherein 600kg of urea, 50kg of calcium chloride, 50kg of sodium chloride and 100kg of magnesium chloride.

[0074] The oxygen scavenger is acetone oxime;

[0075] The stabilizer is hydroxypropyl methylcellulose.

[0076] A preparation method of a carbon monoxide composite suppression absorbent for coal mines, comprising the following steps:

[0077] (1) Prepare 2000kg of water, 4kg of oxygen scavenger (acetone oxime), 50kg of CO absorbe...

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Abstract

The invention discloses a carbon monoxide composite inhibition absorbent for a coal mine. The carbon monoxide composite inhibition absorbent is prepared from the following components in percentage by weight: 0.1%-3.6% of a CO absorbent, 2.6%-22% of a CO absorbent solubilizer, 1%-42% of a CO generation inhibitor, 0.1%-0.5% of a deoxidant, 0.05%-0.5% of a stabilizer and 31.4%-71% of water. The invention further provides a preparation method of the carbon monoxide composite inhibition absorbent for the coal mine. According to the invention, generation of CO gas in areas with broken coal bodies such as a goaf, a roadway and a coal bunker under a coal mine can be inhibited, CO gas generated in the areas can be absorbed, harm of fire in the coal mine to physical and psychological health of underground operating personnel can be reduced, a spontaneous ignition process of a coal seam can be inhibited, and occurrence of the internal fire can be prevented. Meanwhile, the preparation process is simple, the cost is low, the market demand is higher, and large-scale industrial production can be realized.

Description

technical field [0001] The invention belongs to the technical field of coal mine fire prevention and control, and in particular relates to a carbon monoxide composite suppression absorbent for coal mines and a preparation method thereof. Background technique [0002] my country's "Coal Mine Safety Regulations" stipulates that the CO concentration in the underground operation area of ​​coal mines shall not be higher than 24ppm, but when mining low-metamorphic coal seams, due to the low degree of coalification of low-metamorphic coal, the coal has a high tendency to spontaneous combustion and high chemical activity. After the oxygen is added, a certain concentration of CO gas can be generated, so that most of the coal mines mining low-metamorphic coal mining face return air corner CO concentration often exceeds the specified 24ppm, and the maximum may even be as high as several hundred ppm. [0003] The existence of a large amount of CO interferes with the accuracy of the predi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
CPCB01D53/1493B01D2252/10B01D2252/504B01D2252/60B01D2257/502
Inventor 师吉林赵亚明张海洋陈庆丰王坤孙维丽王刚贺明新艾兴王帅王银辉邢真强
Owner CCTEG SHENYANG RES INST
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