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Superfine smoke dust settling agent for coal burning boilers

A technology for coal-fired boilers and dust suppressants, applied in the field of environmental protection, can solve problems such as difficulty in meeting smoke and dust emission requirements, and achieve the effects of reduced ultra-fine particle emission, wide range of raw materials, and simple implementation process

Inactive Publication Date: 2014-10-08
COAL IND JINAN DESIGN & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The implementation of this standard has caused many related companies to renovate their flue gas dust removal systems. Although many companies use electric-bag combined dust removal technology, the dust emission can only reach 30-50mg / m 3 In between, it is also difficult to meet the latest national smoke and dust emission requirements, and the public relations of new technologies are imminent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 1 kg of polyacrylamide, dissolve it in 200 kg of water, put it into a water bath at 60°C, heat and stir until the solution is colorless and transparent, add 0.5 kg of sodium dodecylsulfonate, 0.5 kg ammonium phosphate, and continue to stir to obtain the product.

Embodiment 2

[0021] Weigh 2 kg of acrylamide, dissolve it in 220 kg of water, put it into a water bath at a temperature of 50°C, heat and stir until the solution is colorless and transparent, add 1 kg of alkylphenol polyoxyethylene ether, 1 kg of Sodium nitrite, the product can be obtained by continuing to stir.

Embodiment 3

[0023] Weigh 1.5kg of N,N-methylenebisacrylamide, dissolve it in 250kg of water, put it into a water bath at a temperature of 55°C, heat and stir, and when the solution is colorless and transparent, add 0.8kg of dodecane Hydroxypropyl sulfobetaine, 0.8 kg of salicylate, continue to stir to obtain the product.

[0024] The dust-reducing agent is added into the desulfurization slurry pool and sprayed into the desulfurization tower with the slurry. The wetting agent in the slurry and the fine dust of the flue gas are fully caught. First, the oil film on the surface of the dust is opened to release the air contained in it. The dust increases in weight when wet, and at the same time, the chemical agglomerating agent makes the ultrafine particles in the flue gas gather into large particles, and the dust falls with the slurry water film to achieve the purpose of further dust removal.

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PUM

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Abstract

The invention belongs to the technical field of environmental protection, and particularly discloses a superfine smoke dust settling agent for coal burning boilers. The superfine smoke dust settling agent for coal burning boilers is prepared by mixing a wetting agent, a chemical aggregation agent and an accelerator with water according to certain parts by weight. All the components are water-soluble substances; and the settling agent can be implemented by using the original desulfurizing tower spray device, has the advantages of wide raw material sources, no toxicity, no smell, no harmful gas generation and simple implementation technique, and can lower the superfine particle emission by more than 30%.

Description

(1) Technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an ultrafine soot and dust suppressant for coal-fired boilers. (2) Background technology [0002] Today, with the rapid development of industry, air pollution is quite serious. The primary pollutants that affect the air quality of cities in my country are inhalable particulate matter. (PM2.5) is more harmful and seriously affects human health. When the air is filled with ultrafine particles (PM2.5 particles), smog will form; 90% of my country's soot comes from coal-fired boiler emissions, although Enterprises using boilers have added flue gas dust removal devices at the tail of the boilers, and the dust removal efficiency of the equipment is as high as 99%, but the ability to capture ultrafine particles (PM2.5) is low, and a large number of ultrafine particles still enter the atmosphere. cause air pollution. [0003] Ultrafine particles, that i...

Claims

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Application Information

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IPC IPC(8): C09K3/22
Inventor 杨怀玉曲堂杰陈公卫
Owner COAL IND JINAN DESIGN & RES
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