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White dust suppressant and preparation method and application thereof

A dust suppressant, white technology, applied in the field of white dust suppressant and its preparation, can solve the problems of poor film-forming effect, poor hardness and toughness, inconvenient management of coal yards, etc., achieve low cost, simple construction, The effect of facilitating material stacking management

Active Publication Date: 2015-07-22
广州普凯热伏微能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the bonding layer is mixed with coal, the hardness and toughness are poor, and the film-forming effect is poor
[0008] (2) The film-forming adhesive layer is transparent and colorless, and there is no difference in visual observation before and after the implementation of the coal pile, which is not convenient for the management of the coal yard

Method used

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  • White dust suppressant and preparation method and application thereof
  • White dust suppressant and preparation method and application thereof
  • White dust suppressant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Under the protection of dry nitrogen, 100 parts by weight of polyether diol with a molecular weight of 1000, 100 parts by weight of polyether diol with a molecular weight of 2000, and 10 parts by weight of epoxy resin E-40 were mixed, and stirred at 2m / s Heating at high speed, then adding 15 parts by weight of toluene diisocyanate and 10 parts by weight of N-methyldiethanolamine, raising the temperature to 82°C, and keeping the temperature for 3 hours; then adding 90 parts by weight of propylene glycol methyl ether acetate, 3 parts by weight of organic solvent three Ethylamine, react at 65°C for 1h, finally add 50 parts by weight of polyethylene glycol, react at 60°C for 0.5h, cool down to below 40°C, and discharge to obtain a prepolymer;

[0038] Add 90 parts by weight of titanium dioxide, 30 parts by weight of calcium carbonate, 5 parts by weight of acid group-containing copolymer Disperbyk-110, 10 parts by weight of sodium tripolyphosphate, 2 parts by weight of organi...

Embodiment 2

[0042] Under the protection of dry nitrogen, 50 parts by weight of polyether diols with a molecular weight of 1000, 150 parts by weight of polyether diols with a molecular weight of 2000, and 15 parts by weight of epoxy resin E-20 were mixed, and stirred at 3m / s Heating at a high speed, then adding 10 parts by weight of toluene diisocyanate and 5 parts by weight of N-methyldiethanolamine, heating up to 80 ° C, and keeping the temperature for 3 hours; then adding 150 parts by weight of alcohol ester twelve, 2 parts by weight of organic solvent ethylene glycol Amine, react at 60°C for 1.5h, finally add 25 parts by weight of polyethylene glycol, react at 55°C for 1h, cool down to below 40°C, and discharge to obtain a prepolymer;

[0043] Add 50 parts by weight of titanium dioxide, 80 parts by weight of clay, 9 parts by weight of acid group-containing copolymer Disperbyk-110, 10 parts by weight of sodium metasilicate, 3 parts by weight of organic solvent ethylenediamine and 480 par...

Embodiment 3

[0047]Under the protection of dry nitrogen, 50 parts by weight of polyether diols with a molecular weight of 1000, 50 parts by weight of polyether diols with a molecular weight of 2000, and 50 parts by weight of epoxy resin E-40 were mixed. Heat up at a stirring speed, then add 15 parts by weight of toluene diisocyanate and 10 parts by weight of N-methyldiethanolamine, heat up to 85°C, and keep warm for 0.5h; then add 20 parts by weight of propylene glycol methyl ether acetate, 3 parts by weight of organic Solvent triethylamine, react at 60°C for 1h, finally add 80 parts by weight of polyethylene glycol, react at 60°C for 1h, cool down to below 40°C, and discharge to obtain a prepolymer;

[0048] Add 150 parts by weight of titanium dioxide, 25 parts by weight of diatomaceous earth, 10 parts by weight of acid group-containing copolymer Disperbyk-110, 15 parts by weight of sodium metasilicate, 5 parts by weight of organic solvent triethylamine and 230 parts by weight in the prepo...

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Abstract

The invention belongs to the technical field of prevention and controlling of unorganized emission of dust in storing and transporting processes of coal, and discloses a white dust suppressant and a preparation method and application thereof. The white dust suppressant is prepared by the following raw materials in parts by weight: 50-200 parts of polyether diol with molecular weight of 1000, 50-200 parts of polyether diol with molecular weight of 2000, 10-50 parts of epoxy resin E-40 or E-20, 25-100 parts of polyethylene glycol, 50-200 parts of titanium oxide, 25-100 parts of calcium carbonate or argil or diatomite, 5-10 parts of copolymer containing acid group, 2-20 parts of sodium tripolyphosphate or sodium metasilicate, 20-200 parts of propylene glycol methyl ether acetate or 2,2,4-trimethyl-1,3-amyl glycol monoisobutyrate, 5-30 parts of toluene diisocynate, 5-15 parts of N-methyldiethanolamine, 5-15 parts of organic solvent, and 200-500 parts of deionized water.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of fugitive dust emission during coal storage and transportation, and in particular relates to a white dust suppressant and its preparation method and application. technical background [0002] Coal-fired power generation is still the main way of power production in my country, and with the strong promotion of energy conservation and consumption reduction, the single unit and total installed capacity of each power plant continue to expand, and the total coal consumption and coal storage increase accordingly. During storage, the coal will be scattered by the wind and washed away by the rain, which not only causes waste, but also pollutes the surrounding air and water environment. Statistics show that the loss of coal-fired open-air storage in power plants due to wind and rain is about 1.5%. [0003] The traditional methods of controlling dust pollution in coal yards include sprinkle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22C08G18/66C08G18/48C08G18/58C08G18/32C08G18/12
Inventor 贺光辉郭德华
Owner 广州普凯热伏微能源科技有限公司
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