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Catalytic cracking regeneration flue gas dry type desulfurization and denitrification dust removal system

A technology for regenerating flue gas, desulfurization and denitrification, applied in the field of desulfurization and denitrification integration, can solve the problems of difficult wastewater treatment, environmental impact, large amount of dust, etc., and achieve the effects of easy disassembly and replacement, improved efficiency, and energy saving

Inactive Publication Date: 2021-08-06
张海球
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dry desulfurization, denitrification and dust removal system for catalytic cracking regenerated flue gas, to solve the problem that the current processing methods for catalytic cracking regenerated flue gas proposed in the above background technology are wet processing and dry processing. After treating the sulfur and nitrate in the flue gas, the waste water produced is difficult to treat and has the phenomenon of polluting the environment, and the dry treatment will also bring a lot of dust, which also affects the environment

Method used

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  • Catalytic cracking regeneration flue gas dry type desulfurization and denitrification dust removal system
  • Catalytic cracking regeneration flue gas dry type desulfurization and denitrification dust removal system
  • Catalytic cracking regeneration flue gas dry type desulfurization and denitrification dust removal system

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Effect test

Embodiment 1

[0046] see Figure 1-Figure 9 , the present invention provides a technical solution:

[0047] Such as Figure 1-Figure 9 As shown, a catalytic cracking regenerated flue gas dry desulfurization, denitrification and dust removal system includes:

[0048]Dust removal base mechanism 1, desulfurization mechanism 2 and denitrification mechanism 3.

[0049] In order to facilitate the removal of sulfur, nitrate and dust in the flue gas, the middle part of the outer wall of one side of the dust filter box 11 is fixedly connected with a first induced draft fan 17, and the air intake end of the first induced draft fan 17 is equipped with a suction pipe 18 One end of the suction pipe 18 runs through the bottom of the dust filter box 11 and communicates with the inner cavity of the dust filter box 11. The outlet end of the first induced draft fan 17 is equipped with an air outlet pipe 19, and one end of the air outlet pipe 19 runs through the dust filter. The upper part of the box body ...

Embodiment 2

[0052] see Figure 1-Figure 9 The difference between Embodiment 2 and Embodiment 1 is that a dredging mechanism 4 is installed in the middle of the inner cavity of the dust filter box 11, and the dredging mechanism 4 includes a support plate 41, and the support plate 41 is installed in the middle of the inner cavity of the dust filter box 11. The sidewalls on both sides of the support plate 41 are fixedly connected to both sides of the inner wall of the dust filter box 11, and the top side of the support plate 41 is fixedly connected with a third induced draft fan 42, and the outlet end of the third induced draft fan 42 is equipped with a tee joint 43, The two branch ends of the three-way joint 43 are respectively equipped with a lower connecting pipe 44 and an upper connecting pipe 45, and one end of the lower connecting pipe 44 runs through the support plate 41;

[0053] Wherein, a first trunk pipe 46 is horizontally arranged below the support plate 41, and both ends of the ...

Embodiment 3

[0059] see Figure 1-Figure 9 The difference between Embodiment 3 and Embodiment 1 and Embodiment 2 is that in order to further filter and absorb the dust in the flue gas, an exhaust port is installed on the upper part of the side wall of the dust filter box 11 away from the air inlet 14 15. An air port filter 16 is installed in the exhaust port 15. When the flue gas flows out, the dust can be filtered through the air port filter 16 again.

[0060] In order to ensure that the operator can replace the air port filter 16 at a later stage, the air port filter 16 is detachably connected to the exhaust port 15, which is convenient for the operator to disassemble and replace the air port filter 16.

[0061] In order to facilitate the outward transportation of the flue gas, the dust filter box 11 is fixedly connected with a second induced draft fan 110 on the top side of the exhaust port 15, and the intake end of the second induced draft fan 110 is connected with an air intake pipe 1...

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Abstract

The invention discloses a catalytic cracking regeneration flue gas dry type desulfurization and denitrification dust removal system, and relates to the technical field of desulfurization and denitrification integration, the system comprises a dust removal base body mechanism, the dust removal base body mechanism comprises a dust filtration box body, the middle part of the outer wall of one side of the dust filtration box body is fixedly connected with a first induced draft fan, and the lower part of the inner cavity of the dust filtration box body is provided with a desulfurization mechanism; a denitration mechanism is mounted at the upper part of the inner cavity of the dust removal base body mechanism. According to the technical scheme, the dust removal base body mechanism, the desulfurization mechanism and the denitration mechanism are matched for use, so that sulfur, nitrate and dust in flue gas can be effectively filtered, and the purpose of environmental protection is achieved; a desulfurization filter plate and a denitration filter plate also have the effect of being convenient to disassemble and replace after the service life is reached; under the dredging action of a dredging mechanism, dredging of the desulfurization mechanism and the denitration mechanism can be realized only through a third induced draft fan, so that the energy consumption is effectively reduced, and the efficiency is improved; and when the flue gas flows out, dust can be filtered again through a gas port filter screen.

Description

technical field [0001] The invention relates to the technical field of desulfurization and denitrification integration, in particular to a dry-type desulfurization, denitrification and dust removal system for catalytic cracking regenerated flue gas. Background technique [0002] With the increasingly strict control of industrial waste gas pollutant discharge indicators by the state and local governments, the treatment of high-salt wastewater pollutants in my country's petroleum and petrochemical industries and metal smelting industries has become more and more prominent. Chemical plants, smelters and other production processes will Produces high-temperature flue gas containing pollutants such as sulfur dioxide, nitrogen oxides, dust (PM10, PM2.5), mercury, hydrogen sulfide, carbon black, and hydrogen chloride. [0003] The catalytic cracking unit is the core device for converting heavy oil into light oil in the oil refining industry, but the regenerated flue gas generated by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/12B01D46/00B01D53/04
CPCB01D46/12B01D46/0036B01D53/0407B01D2258/0283B01D2257/302B01D2257/40B01D46/72B01D46/88
Inventor 张海球
Owner 张海球
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