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Desulfurized flue gas aftertreatment device and method and wet desulphurization system

A post-processing device and wet desulfurization technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problem of low heat and mass transfer efficiency between flue gas and cooling water, cooling efficiency needs to be improved, and large cooling equipment and other problems, to achieve the effect of prolonging the cooling time, reducing the heating range and improving the cooling efficiency

Active Publication Date: 2019-10-15
SINOPEC ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing methods use spraying and indirect heat exchange to reduce the flue gas temperature to reduce the water vapor content in the flue gas, but the heat and mass transfer efficiency of the flue gas and cooling water in these two methods are low, and the cooling process The water consumption is large, the cooling equipment is huge, and the cooling efficiency needs to be improved

Method used

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  • Desulfurized flue gas aftertreatment device and method and wet desulphurization system
  • Desulfurized flue gas aftertreatment device and method and wet desulphurization system
  • Desulfurized flue gas aftertreatment device and method and wet desulphurization system

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Embodiment 1

[0042] see figure 1 and figure 2 As shown, this embodiment provides a desulfurization flue gas post-processing device; figure 1 The first structural schematic diagram of the desulfurization flue gas post-processing device provided in this embodiment; figure 2 It is a schematic diagram of the second structure of the desulfurization flue gas post-processing device provided in this embodiment.

[0043] The post-processing device for desulfurized flue gas provided in this embodiment is used to perform further anti-pollution treatment on the flue gas that has undergone desulfurization treatment, especially to perform further anti-pollution treatment on the flue gas that has undergone wet desulfurization treatment.

[0044] see figure 1 and figure 2 and combine image 3 and Figure 4 As shown, the desulfurization flue gas post-treatment device 1 includes a treatment tower 10, a bubble generating assembly 11 and a heater 12. The bottom of the treatment tower 10 is provided wit...

Embodiment 2

[0065] Embodiment 2 provides a wet desulfurization system. This embodiment includes the desulfurization flue gas post-processing device provided in Embodiment 1. The technical features of the desulfurization flue gas post-processing device disclosed in Embodiment 1 are also applicable to this embodiment. Embodiment 1 The technical features of the disclosed desulfurization flue gas post-processing device will not be described repeatedly.

[0066] image 3 Schematic diagram of the structure of the wet desulfurization system provided in this example.

[0067] combine figure 1 and figure 2 and see image 3 and Figure 4 As shown, the wet desulfurization system 2 provided in this embodiment includes a desulfurization device 20 and a desulfurization flue gas post-treatment device 1 ; the exhaust port 200 of the desulfurization device 20 is connected to the bubble generating assembly 11 of the desulfurization flue gas post-treatment device 1 . That is to say, the desulfurized f...

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Abstract

The invention relates to the technical field of treatment of desulfurized flue gas, in particular to a post-treatment device and method for desulfurized flue gas and a wet desulphurization system. Thedesulfurized flue gas aftertreatment device comprises a treatment column, a bubble generation assembly and a heater, a cooling space for accommodating cooling water is formed in the bottom of the treatment column; the bubble generation assembly is arranged in the cooling space and is used for converting the desulfurized flue gas into microbubbles in the cooling space; the heater is arranged at the outlet of the treatment column. The desulfurized flue gas after-treatment method adopts the desulfurized flue gas after-treatment device. The wet desulphurization system comprises the desulfurized flue gas post-treatment device. According to the post-treatment device and method for the desulfurized flue gas and the wet desulphurization system, the cooling efficiency of the desulfurized flue gascan be improved, and then the purpose of eliminating white smoke is achieved.

Description

technical field [0001] The invention relates to the technical field of desulfurization flue gas treatment, in particular to a desulfurization flue gas post-processing device, method and wet desulfurization system. Background technique [0002] The flue gas produced by the combustion of boilers, incinerators, catalytic cracking units, etc. needs to be desulfurized before being discharged into the air. Desulfurization generally adopts wet desulfurization. After desulfurization, the temperature of the flue gas decreases, and the water vapor in the flue gas is in a supersaturated state. When the flue gas is discharged into the air, a large number of small water droplets will be produced to form white smoke when it is cold, which not only wastes a lot of heat energy and water resources, but also causes strong visual pollution. Moreover, the small liquid droplets condensed by water vapor and the residual NOx and SO in the flue gas 3 The aerosol formed by the combination of submic...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D47/06
CPCB01D47/06B01D53/002B01D2258/0283
Inventor 李国智李玖重孙志钦高晓红高跃成王松江周天宇张婧帆
Owner SINOPEC ENG GRP CO LTD
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