CN211159101U - Flue gas purification system after catalyst calcination - Google Patents
Flue gas purification system after catalyst calcination Download PDFInfo
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- CN211159101U CN211159101U CN201921662768.XU CN201921662768U CN211159101U CN 211159101 U CN211159101 U CN 211159101U CN 201921662768 U CN201921662768 U CN 201921662768U CN 211159101 U CN211159101 U CN 211159101U
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- flue gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model discloses a flue gas purification system after roasting of a catalyst, which comprises a cyclone separator, wherein a gas outlet at the top end of the cyclone separator is connected with a lower inlet of a washing tower through parallel fans, an upper gas outlet of the washing tower is connected with an inlet of a gas-liquid separator, and an outlet of the gas-liquid separator is connected with an SCR device; and a gas outlet of the SCR device is connected with a vent pipe. The utility model relates to a flue gas purification system passes through multichannel purification process after the catalyst calcination, can effectually get rid of a large amount of dust and poisonous and harmful gas that contain in the catalyst roaster gas, and the effect is comparatively obvious, and process flow is simple, and the practicality is comparatively extensive, has reduced the pollution to the environment simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the chemical industry, concretely relates to flue gas purification system after catalyst calcination.
Background
The catalyst can generate roasting furnace gas in the roasting process, wherein the roasting furnace gas contains a large amount of dust and nitrogen oxides, the pollution of harmful gas and dust to the environment and the atmosphere is very serious, the harmful gas and dust are generally treated by a dust remover or a chemical reaction, the dust removing effect by the dust remover is not obvious, and the emission standard is difficult to achieve; the chemical reaction treatment has complex process, needs to add some reagents, is accompanied by the generation of other substances, and has common effect.
Disclosure of Invention
An object of the utility model is to provide a flue gas purification system behind catalyst calcination to solve the problem among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a flue gas purification system after catalyst calcination, includes cyclone, and the gas outlet connection washing tower's lower part import is gone up in the gas outlet on cyclone top, and the import of vapour and liquid separator is connected to the upper portion gas outlet of washing tower, and the exit linkage SCR device of vapour and liquid separator.
Further, a gas outlet at the top end of the cyclone separator is connected with a lower inlet of the water washing tower through a fan.
Further, the fans 2 are N in parallel, and N is an integer and is greater than or equal to 2.
Further, a gas outlet of the SCR device is connected with a vent pipe.
Furthermore, a first dust outlet is arranged at the bottom of the cyclone separator, and a first valve is arranged at the first dust outlet.
Furthermore, the bottom of the water washing tower is provided with a second dust outlet, and the second dust outlet is provided with a second valve.
Further, the bottom of the gas-liquid separator is provided with a third dust outlet, and the third dust outlet is provided with a third valve.
Compared with the prior art, the utility model has the advantages as follows:
the utility model relates to a flue gas purification system passes through multichannel purification process after the catalyst calcination, can effectually get rid of a large amount of dust and poisonous and harmful gas that contain in the catalyst roaster gas, and the effect is comparatively obvious, and process flow is simple, and the practicality is comparatively extensive, has reduced the pollution to the environment simultaneously.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a flue gas purification system after calcination of a catalyst according to the present invention;
description of the labeling: the device comprises a cyclone separator 1, a fan 2, a water washing tower 3, a gas-liquid separator 4, an SCR device 5, a vent pipe 6, a first dust outlet 11, a first valve 12, a second dust outlet 31, a second valve 32, a third dust outlet 41 and a third valve 42.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
As shown in figure 1, the flue gas purification system after catalyst calcination comprises a cyclone separator 1, wherein a gas outlet at the top end of the cyclone separator 1 is connected with a lower inlet of a water washing tower 3, an upper gas outlet of the water washing tower 3 is connected with an inlet of a gas-liquid separator 4, and a gas outlet of the gas-liquid separator 4 is connected with an SCR device 5.
Further, a gas outlet at the top end of the cyclone separator 1 is connected with a lower inlet of a water washing tower 3 through a fan 2.
Further, the fans 2 are N in parallel, and N is an integer and is greater than or equal to 2.
Further, a gas outlet of the SCR device 5 is connected with a vent pipe 6.
Further, a first dust outlet 11 is arranged at the bottom of the cyclone separator 1, and a first valve 12 is arranged at the first dust outlet 11.
Further, the bottom of the water washing tower 3 is provided with a second dust outlet 31, and a second valve 32 is arranged at the second dust outlet 31.
Further, a third dust outlet 41 is arranged at the bottom of the gas-liquid separator 4, and a third valve 42 is arranged at the third dust outlet 41.
The utility model discloses a working process: the gas containing a large amount of dust and toxic and harmful gases enters a purification system of a catalyst roasting furnace, firstly enters a cyclone separator 1, a fan 2 is adjusted at the same time, 60-70% of the dust in the gas is separated, the gas with part of the dust removed enters the lower part of a washing tower 3, the toxic and harmful gases are contacted and absorbed by spraying water on the upper part of the washing tower 3, meanwhile, the dust in the gas is cleaned, the cleaned fine dust is discharged through the lower part of the washing tower, the gas enters a gas-liquid separator 4 from the upper part of the washing tower, the finer dust is discharged from the lower part of the gas-liquid separator 4, the gas enters an SCR (selective catalytic reduction) device 5 through the upper part of the gas-liquid separator 4, and the gas is discharged from an emptying pipe 6 to the air in the high altitude.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (7)
1. The flue gas purification system after catalyst roasting is characterized by comprising a cyclone separator (1), wherein a gas outlet at the top end of the cyclone separator (1) is connected with a lower inlet of a washing tower (3), an upper gas outlet of the washing tower (3) is connected with an inlet of a gas-liquid separator (4), and a gas outlet of the gas-liquid separator (4) is connected with an SCR device (5).
2. The system for purifying flue gas after roasting of catalyst according to claim 1, wherein the gas outlet at the top end of the cyclone separator (1) is connected with the lower inlet of the water washing tower (3) through a fan (2).
3. The system for purifying flue gas after roasting of catalyst according to claim 2, wherein the fans (2) are arranged in two or more parallel ways.
4. The system for purifying flue gas after roasting of catalyst according to claim 1, wherein the gas outlet of the SCR device (5) is connected with a blow-down pipe (6).
5. The system for purifying flue gas after roasting of catalyst according to claim 1, wherein the cyclone separator (1) is provided with a first dust outlet (11) at the bottom, and a first valve (12) is arranged at the first dust outlet (11).
6. The system for purifying flue gas after roasting of catalyst according to claim 1, wherein the bottom of the water washing tower (3) is provided with a second dust outlet (31), and a second valve (32) is arranged at the second dust outlet (31).
7. The system for purifying flue gas after roasting of catalyst according to claim 1, wherein the bottom of the gas-liquid separator (4) is provided with a third dust outlet (41), and a third valve (42) is arranged at the third dust outlet (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662768.XU CN211159101U (en) | 2019-09-30 | 2019-09-30 | Flue gas purification system after catalyst calcination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662768.XU CN211159101U (en) | 2019-09-30 | 2019-09-30 | Flue gas purification system after catalyst calcination |
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| Publication Number | Publication Date |
|---|---|
| CN211159101U true CN211159101U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921662768.XU Active CN211159101U (en) | 2019-09-30 | 2019-09-30 | Flue gas purification system after catalyst calcination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156646A (en) * | 2020-08-27 | 2021-01-01 | 昆明理工大学 | Time-phased gas inlet device for in-situ denitration in calcination process of copper-based oxygen carrier/catalyst precursor by taking nitrate as raw material |
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2019
- 2019-09-30 CN CN201921662768.XU patent/CN211159101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156646A (en) * | 2020-08-27 | 2021-01-01 | 昆明理工大学 | Time-phased gas inlet device for in-situ denitration in calcination process of copper-based oxygen carrier/catalyst precursor by taking nitrate as raw material |
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