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Flue gas dehumidification process

A flue gas and process technology, applied in the directions of dispersed particle separation, chemical instruments and methods, combined devices, etc., can solve problems such as poor dehumidification effect of flue gas, solve the problem of smoke plume, improve economy and reliability, reduce water the wasteful effect of

Inactive Publication Date: 2020-11-24
TONGZHENG ENVIRONMENT PROTECTION GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flue gas dehumidification process in order to solve the problem in the technical field of poor flue gas dehumidification effect at present

Method used

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  • Flue gas dehumidification process
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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, and therefore cannot be constru...

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Abstract

The invention discloses a flue gas dehumidification process. The flue gas dehumidification process comprises the following steps of S1, primary dust and mist removal, wherein flue gas to be dehumidified after spray desulfurization is firstly dedusted by a multi-cyclone dedusting and demisting device; S2, cooling is performed to separate out saturated water, wherein after primary dedusting and demisting, the flue gas is cooled by a flue gas cooling and dehumidifying device, and the saturated water is separated out from the cooled flue gas; S3, secondary dust and mist removal, wherein the cooledflue gas is subjected to secondary dust and mist removal through multi-cyclone; and S4, the flue gas is reheated for flue gas electric dedusting. The process has the characteristic of no leakage; a cooling side and a heating side are completely separated; cooling of raw flue gas, cooling and dehumidification of wet flue gas and re-heating of the wet flue gas by the whole system are all subsystems; no flue gas and fly ash are leaked among the subsystems; the removal efficiency of SO2 and fly ash is not influenced in the process; and the design of the process can well adapt to various flue gasconditions, and has good economical efficiency and reliability.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, in particular to a flue gas dehumidification process. Background technique [0002] Smoke is a mixture of gas and smoke and is the main cause of air pollution in residential areas. The composition of the flue gas is very complex. The gas includes water vapor, SO2, N2, O2, CO, CO2, hydrocarbons, and nitrogen oxides. The smoke includes fuel ash, coal particles, oil droplets, and high-temperature cracking products. Therefore, the pollution of flue gas to the environment is the compound pollution of various poisons. The harmfulness of smoke to the human body is related to the size of the particles. The most harmful to the human body is the floating dust with a diameter of less than 10 microns, especially the most harmful dust of 1-2.5 microns; [0003] For urban heating enterprises, reducing white smoke emissions is a phenomenon-based indicator of whether environmental protection can mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00
CPCB01D50/00
Inventor 黄日昌宋露露段平均欧春峰李洋
Owner TONGZHENG ENVIRONMENT PROTECTION GRP CO LTD
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