Dust-suppression agent and use method thereof

A technology of dust suppressant and initiator, applied in the field of environmental pollution control, can solve problems such as high cost, inability to achieve dust and splash resistance, energy waste, etc., to improve viscosity and water absorption, prevent bulk splash, prevent The effect of flying dust

Inactive Publication Date: 2010-09-08
北京嘉孚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing solution is to cover the bulk material with tarpaulin or sprinkle water, but neither can effectively solve the problem
Covering with tarpaulin reduces operating efficiency, makes recycling difficult and high in cost
Sprinkl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The dust suppressant in the present embodiment is prepared by the following method:

[0021] A. Material preparation: Measure 3 parts of starch, 35 parts of water, 15 parts of acrylic acid, 30 parts of 30% sodium hydroxide, 4 parts of 1% aqueous solution of sodium sulfite, 4 parts of 2% aqueous solution of potassium persulfate, 1% 1 part of aqueous solution of N,N-methylenebisacrylamide for use;

[0022] B. Preparation: first mix acrylic acid and 30% sodium hydroxide to prepare sodium acrylate solution for later use, add starch and water into the reaction kettle at room temperature, stir and mix evenly, heat to 80°C, gelatinize at constant temperature for 1 hour, stop heating, After the temperature in the reactor was lowered to 45°C, the temperature was kept constant, and the air in the reactor was replaced by nitrogen gas, and the prepared sodium acrylate solution, 1% sodium sulfite aqueous solution, 2% potassium persulfate aqueous solution, 1% N,N-sulfite The aqueous...

Embodiment 2

[0024] The dust suppressant in the present embodiment is prepared by the following method:

[0025] A, material preparation: Measure 4 parts of starch, 37 parts of water, 18 parts of acrylic acid, 37 parts of 30% sodium hydroxide, 6 parts of 30% hydrogen peroxide aqueous solution, 3 parts of 3% sodium persulfate aqueous solution and 2 parts of 1% N,N-methylenebisacrylamide aqueous solution for use;

[0026] B. Preparation: first mix acrylic acid and 30% sodium hydroxide to prepare sodium acrylate solution for later use, add starch and water into the reaction kettle at room temperature, stir and mix evenly, heat to 80°C, gelatinize at constant temperature for 1 hour, stop heating, After the temperature in the reactor was lowered to 45°C, the temperature was constant, and the air in the reactor was replaced by nitrogen gas, and the prepared sodium acrylate solution, 2% ammonium persulfate aqueous solution, 3% sodium persulfate aqueous solution and epoxychloroethylene Add them t...

Embodiment 3

[0028] The dust suppressant in the present embodiment is prepared by the following method:

[0029] A, material preparation: Measure 5 parts of starch, 40 parts of water, 20 parts of acrylic acid, 40 parts of 30% sodium hydroxide, 12 parts of 4% sodium sulfite aqueous solution, and 1 part of glycerol in parts by weight;

[0030] B. Preparation: first mix acrylic acid and 30% sodium hydroxide to prepare sodium acrylate solution for later use, add starch and water into the reaction kettle at room temperature, stir and mix evenly, heat to 80°C, gelatinize at constant temperature for 1 hour, stop heating, Keep the temperature in the reactor down to 45°C and then keep the temperature constant, and replace the air in the reactor with nitrogen gas, add the prepared sodium acrylate solution, 4% sodium sulfite aqueous solution, and glycerol into the reactor in sequence, and continue to feed nitrogen gas , After reacting at constant temperature for 3 hours under slow stirring, filter ou...

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PUM

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Abstract

The invention relates to a dust-suppression agent, which is prepared by the following methods: A. material preparation: respectively weighing 3 to 5 parts of starch, 35 to 40 parts of water, 15 to 20 parts of crylic acid, 30 to 40 percent of 30 percent sodium hydroxide, 8 to 12 parts of initiating agent and 1 to 5 parts of cross-linking agent by weight parts for standby; and B. preparation: firstly, mixing the crylic acid and 30 percent sodium hydroxide to be prepared into sodium acrylate solution for standby, adding the starch and the water into a reaction kettle to be stirred and uniformly mixed at the room temperature, heating the materials to 75 to 80 DEG C, then, carrying out pasting for 1 hour at the constant temperature, stopping heating for reducing the temperature in the reaction kettle to 45 to 50 DEG C, then, maintaining the constant temperature, introducing nitrogen gas for replacing air in the reaction kettle, sequentially adding the prepared sodium acrylate solution, the initiating agent and the cross-linking agent into the reaction kettle, continuously introducing the nitrogen gas, carrying out reaction for 3 hours under slow stirring at the constant temperature, filtering out water, drying the materials in a baking oven between 70 and 80 DEG C, and obtaining a powdery dust-suppression agent after the pulverization. The dust-suppression agent is used for bulk coal pile surface layer dust prevention treatment, and can effectively suppress the flying of the bulk coal pile surface layer dust.

Description

technical field [0001] The invention relates to the technical field of environmental pollution control, in particular to a dust suppressant for preventing dust on the surface of loose coal piles during coal mine transportation and a use method thereof. Background technique [0002] As we all know, bulk materials such as coal are easy to blow up with the wind when they are stacked or transported in the open air. Flying dust not only pollutes the air and endangers human health, but also causes material loss and causes economic losses to enterprises. Dust may also cause safety accidents. In the open-air coal storage plants of some thermal power plants, due to the flying coal dust, the deposited dust in heating pipes, cables, etc. can spontaneously ignite and cause fire hazards. The flying or splashing of bulk materials in railway transportation is likely to cause equipment failures, potential safety hazards, and serious traffic accidents to railway locomotives, equipment alon...

Claims

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Application Information

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IPC IPC(8): C09K3/22B01J20/26
Inventor 李琢王农李博
Owner 北京嘉孚科技有限公司
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