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Anhydrous calcium chloride flue gas condensation reheating whiten-eliminating system

A technology of anhydrous calcium chloride and flue gas condensation, applied in gas treatment, heat exchanger type, lighting and heating equipment, etc., can solve problems such as visual pollution, lack of flue gas reheating process, and affect corporate image, etc., to achieve The effect of low energy consumption

Pending Publication Date: 2019-08-02
浙江菲达环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the chemical industry, the flue gas produced by the anhydrous calcium chloride boiling prilling tower absorbs a large amount of water vapor due to the concentrated calcium chloride solution sprayed through the flue, and produces a large amount of white smoke when discharged, causing visual pollution. Affect corporate image
In recent years, the pollutant discharge requirements of the chemical industry have become more and more stringent, but there is a certain degree of lag in its whitening technology and requirements
[0005] At present, for the white smoke discharged from the anhydrous calcium chloride boiling prilling tower, the common white removal process equipment is the spray tower, and the condensation range of the flue gas is very limited, and because of the lack of flue gas reheating process, the white removal effect is general

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  • Anhydrous calcium chloride flue gas condensation reheating whiten-eliminating system

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Effect test

Embodiment 1

[0020] refer to figure 1 An anhydrous calcium chloride flue gas condensation reheating and whitening system of the present invention includes a boiling granulation tower 1, a GGH heat exchanger 2, a flue spray system 3, an induced draft fan 4, a spray cooling tower 5, and a mechanical Ventilation cooling tower 6, cooling water pump 7 and chimney 8, described spray cooling tower 5 is connected with mechanical ventilation cooling tower 6, cooling water pump 7 to form a cold cycle; The flue spray system 3, the induced draft fan 4, and the spray cooling tower 5 are arranged in sequence along the flue gas treatment direction. The inlet of the flue spray system 3 is connected with the GGH heat exchanger 2, and the outlet of the spray cooling tower 5 It is connected with the GGH heat exchanger 2, the outlet of the boiling prilling tower 1 is connected with the GGH heat exchanger 2, the inlet of the chimney 8 is connected with the GGH heat exchanger 2, and the flue gas passes through ...

Embodiment 2

[0023] refer to figure 1 , this embodiment is on the basis of embodiment 1, replaces the mechanical ventilation cooling tower 6 with the heat pump system or the floor heating system, to further recover the low-temperature waste heat of the circulating spray water in the spray cooling tower 5, which not only reduces the energy consumption of the system , but also to ensure the heating demand of the plant.

[0024] Working process of the present invention:

[0025] The working principle of an anhydrous calcium chloride flue gas condensation reheating and whitening system of the present invention is as follows: Taking an anhydrous calcium chloride unit of an electrochemical plant as an example, the temperature of the original flue gas discharged from the boiling granulation tower is about 150°C, first introduce the GGH heat exchanger 2 to exchange heat with the condensed net flue gas, once cool down to 100-120°C, then introduce the flue spray system 3 to exchange heat with calci...

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Abstract

The invention provides an anhydrous calcium chloride flue gas condensation reheating whiten-eliminating system which comprises a boiling granulating tower, a GGH heat exchanger, a flue spraying system, an induced draft fan, a spray cooling tower, a mechanical draft cooling tower, a cooling water pump and a chimney, wherein the spray cooling tower is connected with the mechanical draft cooling tower and the cooling water pump to form a cold cycle; an inlet of the flue spraying system is connected with the GGH heat exchanger; an outlet of the spray cooling tower is connected with the GGH heat exchanger; an outlet of the boiling granulating tower is connected with the GGH heat exchanger; an inlet of the chimney is connected with the GGH heat exchanger; flue gas is cooled after sequentially passing through the boiling granulating tower, the GGH heat exchanger, the flue spraying system, the induced draft fan and the spray cooling tower, then is heated up by the GGH heat exchanger and finally is discharged from the chimney. In the process of cooling and warming the flue gas, the heat of the original flue gas is effectively utilized to heat the net flue gas, and the net flue gas is also utilized to cool the original flue gas, so that the energy consumption is minimized, and the treated flue gas is discharged from the chimney without white smoke.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of small-scale whitening of flue gas, in particular to an anhydrous calcium chloride flue gas condensation reheat whitening system. [0003] 【Background technique】 [0004] In the chemical industry, the flue gas produced by the anhydrous calcium chloride boiling prilling tower absorbs a large amount of water vapor due to the concentrated calcium chloride solution sprayed through the flue, and produces a large amount of white smoke when discharged, causing visual pollution. affect the corporate image. In recent years, the pollutant discharge requirements of the chemical industry have become more and more stringent, but there is a certain degree of lag in its whitening technology and requirements. [0005] At present, for the white smoke discharged from the anhydrous calcium chloride boiling prilling tower, the common white removal process equipment is the spray tower, and the condensation range of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/26F28C3/08F28F21/06
CPCB01D53/265F28C3/08F28F21/062B01D2258/0283B01D2257/80
Inventor 王淦杨杰陈铁炯冯国华杜依倩孟泽杰
Owner 浙江菲达环保科技股份有限公司
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