Chemical agglomeration liquid, preparation method and applications thereof, and device

A technology of chemical agglomeration and liquid storage, which is applied in the field of chemical agglomeration liquid, which can solve the problems of low removal efficiency and achieve the effects of simple ingredients, improved agglomeration effect, and improved stability

Pending Publication Date: 2020-02-04
CHINA HUADIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem of PM in coal-fired power plants in the prior art 2.5 Defects with low removal efficiency, so as to provide chemical agglomeration liquid, device, preparation method and application

Method used

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  • Chemical agglomeration liquid, preparation method and applications thereof, and device
  • Chemical agglomeration liquid, preparation method and applications thereof, and device
  • Chemical agglomeration liquid, preparation method and applications thereof, and device

Examples

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Embodiment 1

[0053] Such as figure 1 As shown, the present invention provides a device for removing fine particles, including a first liquid storage unit 1, a first mixing unit 2, a second liquid storage unit 3, an atomization unit 4, a second mixing unit 5, and dust removal Unit 6; the dust removal unit 6 can be a wet electrostatic precipitator; the second mixing unit 5 can be an electrostatic mixer.

[0054] The first liquid storage unit 1, the first mixing unit 2 and the second liquid storage unit 3 are sequentially connected, so that the solvent from the first liquid storage unit 1 enters the first mixing unit 2 and mixes with the chemical raw materials therein to form a chemical After the agglomeration liquid enters the second liquid storage unit 3;

[0055] The second liquid storage unit 3, the atomization unit 4, and the dust removal unit 6 are sequentially connected, so that the chemical agglomeration liquid from the second liquid storage unit 3 is atomized by the atomization unit 4, an...

Embodiment 2

[0070] This embodiment provides a chemical agglomeration liquid, which is prepared by the following method: 0.08g glycerol, 0.05g cellulose, 0.02g sesame gum and 99.85g water are sequentially added to the mixing unit, and then slowly added to the mass concentration Adjust the pH value to 6.5 with 1 wt% phosphoric acid aqueous solution to prepare a chemical agglomeration liquid.

[0071] This embodiment also provides an application of the above chemical agglomeration liquid in the removal of fine particles: the chemical agglomeration liquid is sent to the atomization unit by a metering pump, and is atomized into a particle with an average particle size of about 30 μm under the action of pressurized air The mist is sprayed into the flue, the spraying amount is 2.5g / m 3 ; After mixing with the flue gas, it enters the wet electrostatic precipitator, and then is captured and removed.

Embodiment 3

[0073] This embodiment provides a chemical agglomeration solution, which is prepared by the following method: 0.08g glycerol, 0.05g cellulose, 0.02g sesame gum, 0.005g calcium chloride and 99.85g water are added to the above-mentioned mass in sequence In the mixing unit, a phosphoric acid aqueous solution with a mass concentration of 1 wt% is slowly added to adjust the pH to 6.5 to prepare a chemical agglomeration liquid.

[0074] This embodiment also provides an application of the above chemical agglomeration liquid in the removal of fine particles: the chemical agglomeration liquid is sent to the atomization unit by a metering pump, and is atomized into a particle with an average particle size of about 30 μm under the action of pressurized air The mist is sprayed into the flue, the spraying amount is 2.5g / m 3 ; After mixing with the flue gas, it enters the wet electrostatic precipitator, and then is captured and removed.

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Abstract

The invention provides a chemical agglomeration liquid, a preparation method and applications thereof, and a device. According to the invention, the charged groups in the flocculating agent in the chemical agglomeration liquid enable fine particles to be in an unstable state, the fine particles are concentrated by utilizing the polymerization property of the flocculating agent, the agglomeration of the fine particles is facilitated by matching the flocculating agent and the adhesive, and the stability of the agglomerate can be effectively improved; by combining the surfactant, the flocculatingagent, the adhesive and the pH regulator, and the mass ratio of all the components is adjusted, so that the agglomeration effect of the prepared chemical agglomeration liquid on fine particles can beimproved so as to overcome the defect of low removal efficiency of the fine particles; by arranging the second mixing unit, the mixing of the chemical agglomeration agent and the flue gas is promoted, and the contact between the chemical agglomeration agent and the fine particles is facilitated so as to make the chemical agglomeration agent be linked to the fine particles, achieve the agglomeration growth of the fine particles, easily capture and remove the fine particles by the conventional dust removing device and improve the fine particle removal efficiency.

Description

Technical field [0001] The invention relates to the field of air pollutant treatment, in particular to chemical agglomeration liquids, devices, preparation methods and applications. Background technique [0002] In recent years, the deterioration of the atmospheric environment and the frequent occurrence of haze weather are mainly caused by the emission of fine particles. It not only has an impact on the ecological environment, but also seriously threatens human health. Fine particulate matter also known as PM 2.5 , Refers to the particles in the air with an aerodynamic equivalent diameter less than or equal to 2.5μm. Compared with the particles with a larger particle size, it has the characteristics of small particle size, strong activity, and easy to carry heavy metals, microorganisms and other harmful substances. The residence time in the atmosphere is long and the transportation distance is long, so it has a greater impact on human health and atmospheric environmental quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/06B01D50/00B01D51/02B01F13/10
CPCB01D47/06B01D50/00B01D51/02B01F33/80B01F33/82
Inventor 胡小夫沈明忠汪洋沈建永苏军划王争荣张锡乾耿宣李伟王桦
Owner CHINA HUADIAN ENG
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