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Coal dust depressor and preparation method thereof

A dust suppressant and coal technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of difficult preparation, poor effect of film resistance to rain erosion, etc., and achieve environmental protection, easy operation and low production cost Effect

Inactive Publication Date: 2010-06-23
NORTHWEST RES INST CO LTD OF C R E C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problems in the prior art are that its preparation is relatively difficult, and the film formed on the coal surface by the existing coal dust inhibitor has a poor anti-rainfall erosion effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 180 milliliters of tap water in the reaction kettle, add 60 grams of sodium lignosulfonate (Zhangye Yangming Paper-making Company) under stirring, after treating that dissolving completely, add 1.2 milliliters of hydrogen peroxide (30%, Tianjin Guangfu Fine Chemical Research Institute), and 36 milliliters of acrylic acid (Tianjin Guangfu Fine Chemical Research Institute), react at room temperature for half an hour, heat the system to 50-55 degrees, and after constant temperature reaction for 1 hour, add 15 grams of calcium chloride (Tianjin Guangfu Fine Chemical Research Institute) Institute), 1.5 grams of sodium tetraborate (Sinopharm Group Chemical Reagent Co., Ltd.) and 9 milliliters of sodium methyl silicate (Hubei Lantian Chemical Products Co., Ltd.), after continuing to react for one hour, the finished product can be obtained.

Embodiment 2

[0025] Add 150 milliliters of tap water in the reactor, add 75 grams of sodium lignosulfonate (Zhangye Yangming Paper-making Company) under stirring, after dissolving completely, add 1.5 milliliters of hydrogen peroxide (30%, Tianjin Guangfu Fine Chemical Research Institute) and 45 milliliters of acrylic acid (Tianjin Guangfu Fine Chemical Research Institute), after half an hour of reaction at room temperature, the system was heated up to 50-55 degrees, and after constant temperature reaction for 1 hour, 15 grams of calcium chloride (Tianjin Guangfu Fine Chemical Research Institute) was added. ), 1.5 grams of sodium tetraborate (Sinopharm Group Chemical Reagent Co., Ltd.) and 9 milliliters of sodium methyl silicate (Hubei Lantian Chemical Products Co., Ltd.), after continuing to react for one hour, the finished product can be obtained.

Embodiment 3

[0027] Add 130 milliliters of tap water in the reactor, add 90 grams of sodium lignosulfonate (Zhangye Yangming Paper-making Company) under stirring, after dissolving completely, add 1.8 milliliters of hydrogen peroxide (30%, Tianjin Guangfu Fine Chemical Research Institute) and 54 milliliters of acrylic acid (Tianjin Guangfu Fine Chemical Research Institute), after half an hour of reaction at room temperature, the system was heated to 50-55 degrees, and after constant temperature reaction for 1 hour, 15 grams of calcium chloride (Tianjin Guangfu Fine Chemical Research Institute) was added. ), 1.5 grams of sodium tetraborate (Sinopharm Group Chemical Reagent Co., Ltd.) and 9 milliliters of sodium methyl silicate (Hubei Lantian Chemical Products Co., Ltd.), after continuing to react for one hour, the finished product can be obtained.

[0028] The waterproof coal dust suppressant prepared in Example 1-3 is sprayed on the surface of coal at normal temperature, and a solid layer wi...

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PUM

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Abstract

The invention discloses a coal dust depressor and a preparation method thereof. The coal dust depressor of the invention is composed of 20-30% of sodium lignin sulfonate, 12-18% of crylic acid, 0.4-0.6% of hydrogen peroxide, 5% of calcium chloride, 0.5% of sodium tetraborate, 3% of methyl sodium silicate and 43-59% of water. The coal dust depressor of the invention has simple operation and simple and convenient production and preparation method, does not need special equipment for preparation and production, does not has toxicity, does not have corrosivity to equipment, has lower production cost, is convenient to operate and apply and conforms to environment protection requirements, and dust depression effect, especially water prevention effect is superior to that of the prior art.

Description

technical field [0001] The invention relates to a coal dust suppressant and a preparation method thereof. Background technique [0002] During the transportation and stacking of coal, wind erosion and / or water erosion will cause loss and environmental pollution. Coal transportation, especially railway transportation, is generally carried by gondola cars. During the transportation process, the dust generated by the bumps of the road, coupled with the wind force, will make the dust more violent. In addition, the speed of the transport vehicles will form more The strong wind acts on the surface of the coal being transported, causing the coal dust and particles on the surface to be blown off. On the one hand, this leads to the loss of coal, which directly causes the waste of valuable coal resources. On the other hand, it also causes coal dust pollution along the transportation line, and at the same time affects the growth of crops on both sides of the transportation line; secon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22C08L51/00C08K3/24C08K5/5419C08K3/38
Inventor 蒋富强杨柳熊治文杨印海薛春晓李凯崇唐瑜
Owner NORTHWEST RES INST CO LTD OF C R E C
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