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Coal-fired ultrafine grain chemical agglomeration promotor

An ultra-fine particle, chemical agglomeration technology, applied in the fields of energy and environment, can solve the problems of insignificant promotion of ultra-fine particle agglomeration, poor wettability, inability to effectively adjust the specific resistance of particles, etc., to achieve easy operation, environmental friendliness, The effect of price economy

Active Publication Date: 2012-07-04
武汉天空蓝环保科技有限公司
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Problems solved by technology

Application No. 200410013001.6 of the Chinese patent document "Agglomeration Promotion Method and Device for Coal-burning Ultrafine Particles" discloses an agglomeration accelerator, which is a xanthan gum solution with a mass percent concentration of 0.1-1% and a mass percent concentration of The mixture formed after the 0.5-5% phosphoric acid solution is fully mixed according to the mass ratio of 1:1 can promote the agglomeration of ultrafine particles into large particles within a certain range, but the agglomeration accelerator is not suitable for ultrafine particles with poor wettability. The agglomeration promotion effect is not obvious, and the specific resistance of particles cannot be effectively adjusted

Method used

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  • Coal-fired ultrafine grain chemical agglomeration promotor
  • Coal-fired ultrafine grain chemical agglomeration promotor

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preparation example Construction

[0014] The preparation method of the agglomeration accelerator of the present invention is: add tap water in the mixer (when two polymer compounds of reducing gum and sodium carboxymethyl cellulose are selected as components, the tap water should be warmed up to 40-60°C to promote its dissolution) , while stirring, add the water-soluble polymer compound. After the polymer compound is completely dissolved, add the surfactant, pH regulator, and inorganic salt additive and stir until completely dissolved and mixed evenly.

[0015] The agglomeration accelerator can be stored independently according to the components before use, or it can be stored in a high-concentration solution in proportion (diluted with tap water in proportion when used), but the time should not exceed one week.

[0016] Such as figure 1 As shown, the agglomeration accelerator of the present invention is used in the following manner to carry out chemical agglomeration technical transformation of the electrosta...

example (1

[0020] Triton X 100 0.001%

[0021] Xanthan Gum 0.0001%

[0022] Phosphoric acid 0.1%

[0023] Ammonium Phosphate 0.001%

[0024] Water 99.8979%

example (2

[0026] Sodium dodecylbenzenesulfonate 0.05%

[0027] Reductive gum 0.005%

[0028] Phosphoric acid 0.005%

[0029] Sodium polyphosphate 0.01%

[0030] Tap water 99.93%

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Abstract

The invention discloses a coal-fired ultrafine grain chemical agglomeration promotor which comprises the components based on mass percent: 0.001-0.2% of surface active agent, 0.0001-0.01% of water-soluble high molecular compound, 0.001-0.05% of inorganic salt additive and the rest of water. The invention can effectively promote ultrafine grains to agglomerate, improve the removal efficiency of a static precipitator for the ultrafine grains and high specific resistance flying ash, and reduce the soot emission and the charges for disposing pollutant of enterprises. The agglomeration promotor has the components with wide source, economical price, environmental protection, simple synthetic process, easy operation and no environmental pollution.

Description

technical field [0001] The invention belongs to the field of energy and environment, and specifically relates to an agglomeration accelerator used in the chemical agglomeration technical transformation of the existing coal-fired power plant electrostatic precipitator, which is used to promote the agglomeration of coal-fired ultrafine particles and improve the electrostatic precipitator's performance on coal-fired ultrafine particles. particle capture efficiency. Background technique [0002] Particulate matter is currently the primary pollutant in my country's urban air environment, 90% of my country's soot comes from coal burning, of which ultrafine particulate matter (PM 2.5 ) pollution problem is more serious. Although the dust removal efficiency of existing dust removal devices can reach more than 99%, the capture rate of these dust collectors for ultrafine particles is low, and there are still a large number of ultrafine particles entering the atmosphere, which can rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D51/02B03C3/013
Inventor 张军营李海龙赵永椿张凯杨艳郑楚光
Owner 武汉天空蓝环保科技有限公司
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