CN209663018U - A kind of sintering machine of steel mill flue gas desulfurization device - Google Patents
A kind of sintering machine of steel mill flue gas desulfurization device Download PDFInfo
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- CN209663018U CN209663018U CN201920372075.0U CN201920372075U CN209663018U CN 209663018 U CN209663018 U CN 209663018U CN 201920372075 U CN201920372075 U CN 201920372075U CN 209663018 U CN209663018 U CN 209663018U
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- desulfurizing tower
- flue gas
- tower
- sintering machine
- steel mill
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a kind of sintering machine of steel mill flue gas desulfurization devices, are related to flue gas desulfurization technique field.Including desulfurization spray system and smoke heat exchanging system；The desulfurization spray system includes the first desulfurizing tower, demister and the second desulfurizing tower connected through pipeline, is provided with the first spray system on first desulfurizing tower and the second desulfurizing tower, is provided with mesh mist eliminator at the top of second desulfurizing tower；The smoke heat exchanging system includes flue, the flue gas heat-exchange unit of cold-air duct and installation therebetween, and the outlet end of the flue is connected to the top of the first desulfurizing tower, and the outlet end of cold-air duct is connected to the top of the second desulfurizing tower.The utility model reduces the ammonia aerosols carried secretly in flue gas and dense saline solution, to reduce the particulate matter in flue gas.
Description
Technical field
The utility model relates to flue gas desulfurization technique field more particularly to a kind of sintering machine of steel mill flue gas desulfurization devices.
Background technique
The former ammonia process of desulfurization of flue gas desulfurization technique design, using crystallization processes outside Double-Tower Structure and tower；Concentration tower it is main
Function is cooling, and desulfurization is miscellaneous function, carries out thick desulfurization to flue gas；And desulfurizing tower major function is desulfurization and defrosting function.
Common ammonia desulfurizing process liquid-vapour ratio is about are as follows: and 6~10, the liquid-gas ratio of former sulfur removal technology design is about are as follows: and 3.7, belong to lower liquid
Gas ratio；Flue gas demisting after desulfurization carries out demisting using two layers of flat defogger.
Former desulfurizer is the sulfur removal technology ammonia process of desulfurization of early stage, as environmental standard requirement is higher and higher, exists and is arranged
Put the exceeded defect of the particle concentration of flue gas.Contain a large amount of water droplet in desulfurization fume, contains soluble-salt (sulfuric acid in water droplet
Ammonium etc.), cause flue gas particles exceeded, existing desulfurization fume particle content is 80~100mg/m3, remote height allow mark arrange
Value 40mg/m3。
Utility model content
The purpose of this utility model is to provide a kind of sintering machine of steel mill flue gas desulfurization device, carried secretly in reduction flue gas
Ammonia aerosols and dense saline solution, to reduce the particulate matter in flue gas.
To achieve the above object, the utility model provides the following technical solutions:
A kind of sintering machine of steel mill flue gas desulfurization device, which is characterized in that including desulfurization spray system and smoke heat exchanging system；
The desulfurization spray system includes the first desulfurizing tower, demister and the second desulfurizing tower connected through pipeline, first desulfurization
It is provided with the first spray system on tower and the second desulfurizing tower, is provided with mesh mist eliminator at the top of second desulfurizing tower；It is described
Smoke heat exchanging system includes flue, the flue gas heat-exchange unit of cold-air duct and installation therebetween, the flue
Outlet end be connected to the top of the first desulfurizing tower, the outlet end of cold-air duct is connected to the top of the second desulfurizing tower.
Further, first spray system includes the first spray tube, first circulation pump and several first jets；It is described
The first end of first spray tube is connected to the bottom of tower body, and second end at the top of tower body by protruding into tower body, first jet installation
In the second end of the first spray tube；The tower body is the tower body of the first desulfurizing tower or the second desulfurizing tower.
It further, further include cooling system, the cooling system includes cooling tower, cooling pipe, heat exchanger and cooling
Circulating pump；The both ends of cooling pipe are connected to the top and bottom of cooling tower, and coolant circulation pump is mounted on cooling pipe,
Heat exchanger is mounted between cooling pipe and the first spray tube of the second desulfurizing tower.
Further, be provided with the second spray system on the demister, including the second spray tube, second circulation pump and
Several second nozzles；The first end of second spray tube is connected to the bottom of the first desulfurizing tower or the second desulfurizing tower, second end
It protrudes into inside demister, second nozzle is mounted on the second end of the second spray tube.
Further, the first end of the demister towards the second spray tube is obliquely installed.
It further, further include doctor solution supply case, the doctor solution supply case is connected to the second spray tube through pipeline.
Further, the arrival end of the cold-air duct is provided with heating blower.
Further, line with rubber is provided in the downstream fume gas pipeline of the flue gas heat-exchange unit.
Compared with prior art, the utility model has the beneficial effects that on the one hand the utility model passes through flue gas heat-exchange unit
Flue-gas temperature is reduced, air themperature is increased, on the other hand the circulation desulfurization liquid on the second desulfurizing tower is carried out by cooling system
The saturated water in flue gas is greatly reduced to improve ammonia in flue gas aerosol efficiency in the second desulfurizing tower in cooling, after washing desulphurization
The ammonia aerosols and soluble-salt for reducing entrained in flue gas, to reduce the particulate matter in flue gas.In addition, by the cigarette after desulfurization
Gas is mixed with the air after heating, improves the temperature of desulfurization fume, eliminates white cigarette.
Detailed description of the invention
Fig. 1 is the overall structure diagram of an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the demister of an embodiment of the present invention.
Fig. 3 is the overall structure diagram of another embodiment of the utility model.
In figure: the first desulfurizing tower of 1-；The first spray tube of 11-；12- first jet；13- first circulation pump；The second desulfurization of 2-
Tower；The first spray tube of 21-；22- first circulation pump；23- first jet；24- mesh mist eliminator；25- rinses (operating) water nozzle；3- flue gas
Pipeline；31- line with rubber；4- cold-air duct；41- heating blower；5- flue gas heat-exchange unit；6- demister；The second spray tube of 61-；
62- second circulation pump；63- second nozzle；The vertical demister of 64-；7- cooling tower；71- cooling pipe；72- coolant circulation pump；8-
Heat exchanger；9- doctor solution supply case；91- circulating pump.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of sintering machine of steel mill flue gas desulfurization device, including desulfurization spray system and
Smoke heat exchanging system.The desulfurization spray system includes the first desulfurizing tower 1, demister 6 and the second desulfurization connected through pipeline
The bottom loaded of tower 2, the first desulfurizing tower 1 and the second desulfurizing tower 2 has a doctor solution, on first desulfurizing tower 1 and the second desulfurizing tower 2
All it is provided with the first spray system.The top of second desulfurizing tower 2 is provided with mesh mist eliminator 24, and 1 to 5 is micro- in removing flue gas
Meter or more small water droplet and particulate matter, and the two sides up and down of mesh mist eliminator 24 be respectively arranged with rinse (operating) water nozzle 25, be used for
Flue gas is rinsed.
Specifically, first spray system includes the first spray tube 11,13 and of first circulation pump on the first desulfurizing tower 1
Several first jets 12；The first end of first spray tube 11 is connected to the bottom of 1 tower body of the first desulfurizing tower, and second end is by
It is protruded into tower body at the top of one desulfurizing tower, 1 tower body, first jet 12 is mounted on the second end of the first spray tube 11.Second desulfurizing tower
On 2, first spray system includes the first spray tube 21, first circulation pump 22 and several first jets 23；First spray
The first end of shower pipe 21 is connected to the bottom of 2 tower body of the second desulfurizing tower, and second end is by protruding into tower at the top of 2 tower body of the second desulfurizing tower
In vivo, first jet 23 is mounted on the second end of the first spray tube 21.The first spray system effect on two desulfurizing towers is identical,
All it is the top that will be corresponded to the doctor solution inside tower body and be extracted into desulfurizing tower, is sprayed by nozzle, realizes the desulfurization to inside smoke.Separately
Although not identifying in outer figure, the flushing (operating) water nozzle 25 of the second desulfurizing tower 2 is again connected on the first spray tube 21, realizes flushing water
Supply.
The smoke heat exchanging system includes flue 3, the flue gas heat-exchange unit of cold-air duct 4 and installation therebetween
5, the outlet end of the flue 3 is connected to the top of the first desulfurizing tower 1, and the outlet end of cold-air duct 4 is connected to second
The top of desulfurizing tower 2.Preferably, the arrival end of the cold-air duct is provided with heating blower 41.The first heated wind of cold air
After the tentatively heating of machine 41, heat exchange is carried out through the flue gas in flue gas heat-exchange unit 5 and flue 3, air realizes reheating, together
When flue 3 in flue gas realize cooling.The flue gas after air and desulfurization at the top of the second desulfurizing tower 2, after heating
Mixing, improves the temperature of desulfurization fume, eliminates the white cigarette phenomenon in exit.Non- desulfurization fume corrosion pipeline in order to prevent,
Line with rubber 31 is provided in the downstream fume gas pipeline of the flue gas heat-exchange unit 5.
It in this present embodiment, further include cooling system, the cooling system includes cooling tower 7, cooling pipe 71, heat exchanger
8 and coolant circulation pump 72；The both ends of cooling pipe 71 are connected to the top and bottom of cooling tower 7, and coolant circulation pump 72 is pacified
On cooling pipe 71, heat exchanger 8 is mounted between cooling pipe 71 and the first spray tube 21 of the second desulfurizing tower 2.Pass through
The cooling to doctor solution is realized in heat exchange of the heat exchanger 8 to coolant liquid in doctor solution in the first spray tube 21 and cooling pipe 71.From
And ammonia aerosols efficiency in desulfurization fume is improved, the saturated water in flue gas is greatly reduced.Through actually detected, temperature is every to reduce by 10
DEG C, saturated water amount decline about 70% in flue gas.
Incorporated by reference to Fig. 1 and Fig. 2, it is provided with vertical demister 64 in the demister 6, is additionally provided on demister 6
Second spray system, including the second spray tube 61, second circulation pump 62 and several second nozzles 63；Second spray tube 61
First end is connected to the bottom of the second desulfurizing tower 2, and second end protrudes into inside demister 6, and second nozzle 63 is mounted on the second spray
The second end of shower pipe 61.Second spray system adds to doctor solution in demister 6 from the second desulfurizing tower 2, in order to make desulfurization
Liquid stays back in the second desulfurizing tower 2, and the demister 6 is tilted towards first end 2 direction of i.e. the second desulfurizing tower of the second spray tube
Setting.Referring to figure 3., in another embodiment, the first end of the second spray tube 61 connects the bottom of the first desulfurizing tower 1, accordingly
, demister 6 is obliquely installed towards 1 direction of the first desulfurizing tower.
It further include desulfurization for the supplement to progress doctor solution in 1/ second desulfurizing tower 2 of demister 6 and the first desulfurizing tower
Liquid supply case 9, the doctor solution supply case 9 are connected to the second spray tube 61 through pipeline, are provided with circulating pump 91 on pipeline.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (8)
1. a kind of sintering machine of steel mill flue gas desulfurization device, which is characterized in that including desulfurization spray system and smoke heat exchanging system；Institute
Stating desulfurization spray system includes the first desulfurizing tower, demister and the second desulfurizing tower connected through pipeline, first desulfurizing tower
With the first spray system is provided on the second desulfurizing tower, be provided with mesh mist eliminator at the top of second desulfurizing tower；The cigarette
Gas heat-exchange system includes flue, cold-air duct and installation flue gas heat-exchange unit therebetween, the flue
Outlet end is connected to the top of the first desulfurizing tower, and the outlet end of cold-air duct is connected to the top of the second desulfurizing tower.
2. sintering machine of steel mill flue gas desulfurization device according to claim 1, which is characterized in that the first spray system packet
Include the first spray tube, first circulation pump and several first jets；The first end of first spray tube is connected to the bottom of tower body,
For second end by protruding into tower body at the top of tower body, first jet is mounted on the second end of the first spray tube；The tower body is first
The tower body of desulfurizing tower or the second desulfurizing tower.
3. sintering machine of steel mill flue gas desulfurization device according to claim 2, which is characterized in that it further include cooling system, institute
Stating cooling system includes cooling tower, cooling pipe, heat exchanger and coolant circulation pump；The both ends of cooling pipe are connected to cooling
The top and bottom of tower, coolant circulation pump are mounted on cooling pipe, and heat exchanger is mounted on cooling pipe and the second desulfurizing tower
Between first spray tube.
4. sintering machine of steel mill flue gas desulfurization device according to claim 1, which is characterized in that be arranged on the demister
There are the second spray system, including the second spray tube, second circulation pump and several second nozzles；The first end of second spray tube
It is connected to the bottom of the first desulfurizing tower or the second desulfurizing tower, second end protrudes into inside demister, and second nozzle is mounted on second
The second end of spray tube.
5. sintering machine of steel mill flue gas desulfurization device according to claim 4, which is characterized in that the demister is towards the
The first end of two spray tubes is obliquely installed.
6. sintering machine of steel mill flue gas desulfurization device according to claim 4, which is characterized in that further include doctor solution supply
Case, the doctor solution supply case are connected to the second spray tube through pipeline.
7. sintering machine of steel mill flue gas desulfurization device according to claim 1, which is characterized in that the cold-air duct enters
Mouth end is provided with heating blower.
8. sintering machine of steel mill flue gas desulfurization device according to claim 1, which is characterized in that under the flue gas heat-exchange unit
Line with rubber is provided in trip flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372075.0U CN209663018U (en) | 2019-03-22 | 2019-03-22 | A kind of sintering machine of steel mill flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372075.0U CN209663018U (en) | 2019-03-22 | 2019-03-22 | A kind of sintering machine of steel mill flue gas desulfurization device |
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| Publication Number | Publication Date |
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| CN209663018U true CN209663018U (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920372075.0U Active CN209663018U (en) | 2019-03-22 | 2019-03-22 | A kind of sintering machine of steel mill flue gas desulfurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755755A (en) * | 2021-01-13 | 2021-05-07 | 中国石油天然气集团有限公司 | Device for realizing desulfurization and denitration under all working conditions |
-
2019
- 2019-03-22 CN CN201920372075.0U patent/CN209663018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755755A (en) * | 2021-01-13 | 2021-05-07 | 中国石油天然气集团有限公司 | Device for realizing desulfurization and denitration under all working conditions |
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