CN204193768U - A kind of composite efficient energy-saving ammonia process desulfuration tower - Google Patents

A kind of composite efficient energy-saving ammonia process desulfuration tower Download PDF

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Publication number
CN204193768U
CN204193768U CN201420460240.5U CN201420460240U CN204193768U CN 204193768 U CN204193768 U CN 204193768U CN 201420460240 U CN201420460240 U CN 201420460240U CN 204193768 U CN204193768 U CN 204193768U
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CN
China
Prior art keywords
absorption tower
cell
shower
tower
ammonia
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Expired - Fee Related
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CN201420460240.5U
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Chinese (zh)
Inventor
汪大伟
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ZHUJI JIEQIU ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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ZHUJI JIEQIU ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Priority to CN201420460240.5U priority Critical patent/CN204193768U/en
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Abstract

The utility model discloses a kind of composite efficient energy-saving ammonia process desulfuration tower, comprise pre-absorption tower and multistage absorption tower, described pre-absorption tower is connected by the first demister with multistage absorption tower, described pre-absorption tower bottom is provided with the first cell body, first shower is installed above the first cell body, first cell body is connected with the first shower by the 3rd circulating pump, pre-absorption tower upper end is connected with deduster, deduster has into mouth, described multistage absorption tower is provided with centrifuge, crystallizing evaporator and ammonium sulfate tank, described absorption tower is from bottom to up successively by the second cell body, first absorber portion and the second absorber portion composition.The utility model can make flue gas and ammoniacal liquor react more complete, and the utilization rate of ammonia absorption agent is higher.

Description

A kind of composite efficient energy-saving ammonia process desulfuration tower
[technical field]
The utility model relates to the technical field of desulfurizing tower, particularly a kind of technical field of composite efficient energy-saving ammonia process desulfuration tower.
[background technology]
Sulfur dioxide affects larger gaseous contaminant in atmosphere pollution, has high risks to human body, environment and the ecosystem.Along with the increasingly stringent of environmental requirement, the problem of S02 discharge more and more receives publicity.Sulfur dioxide mainly stems from the combustion process of the fossil fuel such as coal, oil, and the roasting of ore, the fume emission of smelting process.Wherein various burning boiler particularly power plant boiler smoke evacuation there is the features such as concentration is low, exhaust gas volumn is large, floating dust is many and be difficult to administer.
Wet process of FGD is the main sulfur method that domestic and international thermal power plant adopts always, and for a long time, the desulfurization of calcium method occupies the main status of sulfur removal technology, but this is owned by France in " abandoning " technique, and its desulfurization product gypsum is piled up and easily caused secondary pollution.The ammonia process of desulfurization belongs to recovery process, and the alkalescence of ammonia is better than calcium-based desulfurizing agent, and its reaction absorbing SO2 is solution-air or gas-solid/liquid/gas reactions, and compared to the gas-solid reaction of calcium-based desulfurizing agent, ammonia process of desulfurization speed is faster, and reaction is more complete, and the utilization rate of absorbent is higher.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, a kind of composite efficient energy-saving ammonia process desulfuration tower is proposed, flue gas enters pre-absorption tower after deduster, flow contact with the ammonium sulfate in the first cell body, flue gas is cooled to close to saturated dew-point temperature, ammonium sulfate is concentrated simultaneously, the heat of flue gas is fully utilized, thus avoid a large amount of consumption and the waste of energy, in multistage absorption tower, dilute ammonium sulfate solution counter current contacting in flue gas and the second cell body, ammonium sulfate circulated sprinkling, air is blasted to make ammonium sulfite solution oxidation wherein in ammonium sulfate in the second cell body, ammonia tank provides ammonia to be converted into ammonium sulfate in order to impel ammonium hydrogen sulfate, ensure ejecting liquid SO 2absorbability, the clean flue gas after desulfurization is discharged by exhaust opening after primary heater heats up, and flue gas and ammoniacal liquor can be made to react more completely, and the utilization rate of ammonia absorption agent is higher.
For achieving the above object, the utility model proposes a kind of composite efficient energy-saving ammonia process desulfuration tower, comprise pre-absorption tower and multistage absorption tower, described pre-absorption tower is connected by the first demister with multistage absorption tower, described pre-absorption tower bottom is provided with the first cell body, first shower is installed above the first cell body, first cell body is connected with the first shower by the 3rd circulating pump, pre-absorption tower upper end is connected with deduster, deduster has into mouth, described multistage absorption tower is provided with centrifuge, crystallizing evaporator and ammonium sulfate tank, described absorption tower is from bottom to up successively by the second cell body, first absorber portion and the second absorber portion composition, bottom second cell body, air inlet pipeline is installed, air inlet pipeline is connected with air pump and storage ammonia tank, second shower is installed in the first absorber portion, first water leg is installed below the second shower, first water leg is connected with ammonium sulfate tank, ammonium sulfate tank is connected with the second shower by the first circulating pump, first circulating pump is also connected with crystallizing evaporator, crystallizing evaporator is connected with ammonium sulfate tank, 3rd shower is installed in described second absorber portion, below 3rd shower, the second water leg is installed, second water leg is connected with the second cell body, second cell body is connected with the 3rd shower by the second circulating pump, the bottom on described absorption tower is provided with into mouth, the top on absorption tower is provided with exhaust opening, first cell body is connected by infusion pump with the second cell body.
As preferably, be provided with some corona wires in described deduster, described corona wire is provided with some pyramidal projections, and the center of pyramidal projections is provided with conical socket structure.
As preferably, also comprise gas mixing device, described air inlet pipeline is communicated with one another by longitudinal passages and lateral duct and forms, and air inlet pipeline surface has some ventholes, gas mixing device one end is connected with air inlet pipeline, the gas mixing device other end and air pump with store up ammonia tank and be connected.
As preferably, above described 3rd shower, the second demister is installed, has some S type passages in described second demister, between described exhaust opening and absorption tower, primary heater is installed.
As preferably, described first circulating pump is connected with crystallizing evaporator by secondary heater, and crystallizing evaporator is connected with ammonium sulfate tank by centrifuge, and centrifuge is connected with drying machine.
The beneficial effects of the utility model: in the utility model, flue gas enters pre-absorption tower after deduster, flow contact with the ammonium sulfate in the first cell body, flue gas is cooled to close to saturated dew-point temperature, ammonium sulfate is concentrated simultaneously, the heat of flue gas is fully utilized, thus avoid a large amount of consumption and the waste of energy, in multistage absorption tower, dilute ammonium sulfate solution counter current contacting in flue gas and the second cell body, ammonium sulfate circulated sprinkling, air is blasted to make ammonium sulfite solution oxidation wherein in ammonium sulfate in the second cell body, ammonia tank provides ammonia to be converted into ammonium sulfate in order to impel ammonium hydrogen sulfate, ensure ejecting liquid SO 2absorbability, the clean flue gas after desulfurization is discharged by exhaust opening after primary heater heats up, and flue gas and ammoniacal liquor can be made to react more completely, and the utilization rate of ammonia absorption agent is higher.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the main TV structure figure of a kind of composite efficient energy-saving of the utility model ammonia process desulfuration tower;
Fig. 2 is the main TV structure figure of the utility model deduster;
Fig. 3 is the plan structure figure of the utility model air inlet pipeline.
[detailed description of the invention]
Consult Fig. 1, Fig. 2, Fig. 3, a kind of composite efficient energy-saving ammonia process desulfuration tower of the utility model, comprise pre-absorption tower 1 and multistage absorption tower 4, described pre-absorption tower 1 is connected by the first demister 15 with multistage absorption tower 4, first cell body 11 is installed bottom described pre-absorption tower 1, first shower 12 is installed above first cell body 11, first cell body 11 is connected with the first shower 12 by the 3rd circulating pump 13, pre-absorption tower 1 upper end is connected with deduster 14, deduster 14 has into mouth 141, described multistage absorption tower 4 is provided with centrifuge 5, crystallizing evaporator 6 and ammonium sulfate tank 7, described absorption tower 4 is from bottom to up successively by the second cell body 10, first absorber portion 2 and the second absorber portion 3 form, bottom second cell body 10, air inlet pipeline 101 is installed, air inlet pipeline 101 is connected with air pump 102 and storage ammonia tank 103, second shower 21 is installed in first absorber portion 2, first water leg 22 is installed below second shower 21, first water leg 22 is connected with ammonium sulfate tank 7, ammonium sulfate tank 7 is connected with the second shower 21 by the first circulating pump 81, first circulating pump 81 is also connected with crystallizing evaporator 6, crystallizing evaporator 6 is connected with ammonium sulfate tank 7, in described second absorber portion 3, the 3rd shower 31 is installed, second water leg 32 is installed below the 3rd shower 31, second water leg 32 is connected with the second cell body 10, second cell body 10 is connected with the 3rd shower 31 by the second circulating pump 82, the bottom on described absorption tower 4 is provided with into mouth 41, the top on absorption tower 4 is provided with exhaust opening 42, first cell body 11 is connected by infusion pump 84 with the second cell body 10.
In described deduster 14, some corona wires 142 are installed, described corona wire 142 is provided with some pyramidal projections 143, the center of pyramidal projections 143 is provided with conical socket structure 144, also comprise gas mixing device 104, described air inlet pipeline 101 is communicated with one another by longitudinal passages 105 and lateral duct 106 and forms, air inlet pipeline 101 surface has some ventholes 107, gas mixing device 104 one end is connected with air inlet pipeline 101, gas mixing device 104 other end and air pump 102 with store up ammonia tank 103 and be connected, above described 3rd shower 31, second demister 9 is installed, some S type passages 91 are had in described second demister 9, between described exhaust opening 42 and absorption tower 4, primary heater 43 is installed, described first circulating pump 81 is connected with crystallizing evaporator 6 by secondary heater 61, crystallizing evaporator 6 is connected with ammonium sulfate tank 7 by centrifuge 5, centrifuge 5 is connected with drying machine 51.
Utility model works process:
A kind of composite efficient energy-saving ammonia process desulfuration tower of the utility model in the course of the work, flue gas enters pre-absorption tower 1 after deduster, flow contact with the ammonium sulfate in the first cell body 11, flue gas is cooled to close to saturated dew-point temperature, ammonium sulfate is concentrated simultaneously, the heat of flue gas is fully utilized, thus avoid a large amount of consumption and the waste of energy, in multistage absorption tower 4, dilute ammonium sulfate solution counter current contacting in flue gas and the second cell body 10, ammonium sulfate circulated sprinkling, air is blasted to make ammonium sulfite solution oxidation wherein in ammonium sulfate in the second cell body 10, ammonia tank 103 provides ammonia to be converted into ammonium sulfate in order to impel ammonium hydrogen sulfate, ensure ejecting liquid SO 2absorbability, the clean flue gas after desulfurization is discharged by exhaust opening 42 after primary heater 43 heats up, and flue gas and ammoniacal liquor can be made to react more completely, and the utilization rate of ammonia absorption agent is higher.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.

Claims (5)

1. a composite efficient energy-saving ammonia process desulfuration tower, it is characterized in that: comprise pre-absorption tower (1) and multistage absorption tower (4), described pre-absorption tower (1) is connected by the first demister (15) with multistage absorption tower (4), described pre-absorption tower (1) bottom is provided with the first cell body (11), first cell body (11) top is provided with the first shower (12), first cell body (11) is connected with the first shower (12) by the 3rd circulating pump (13), pre-absorption tower (1) upper end is connected with deduster (14), deduster (14) has into mouth (141), described multistage absorption tower (4) is provided with centrifuge (5), crystallizing evaporator (6) and ammonium sulfate tank (7), described absorption tower (4) is from bottom to up successively by the second cell body (10), first absorber portion (2) and the second absorber portion (3) composition, second cell body (10) bottom is provided with air inlet pipeline (101), air inlet pipeline (101) is connected with air pump (102) and storage ammonia tank (103), second shower (21) is installed in the first absorber portion (2), second shower (21) below is provided with the first water leg (22), first water leg (22) is connected with ammonium sulfate tank (7), ammonium sulfate tank (7) is connected with the second shower (21) by the first circulating pump (81), first circulating pump (81) is also connected with crystallizing evaporator (6), crystallizing evaporator (6) is connected with ammonium sulfate tank (7), 3rd shower (31) is installed in described second absorber portion (3), 3rd shower (31) below is provided with the second water leg (32), second water leg (32) is connected with the second cell body (10), second cell body (10) is connected with the 3rd shower (31) by the second circulating pump (82), the bottom on described absorption tower (4) is provided with into mouth (41), the top on absorption tower (4) is provided with exhaust opening (42), first cell body (11) is connected by infusion pump (84) with the second cell body (10).
2. a kind of composite efficient energy-saving ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: some corona wires (142) are installed in described deduster (14), described corona wire (142) is provided with some pyramidal projections (143), and the center of pyramidal projections (143) is provided with conical socket structure (144).
3. a kind of composite efficient energy-saving ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: also comprise gas mixing device (104), described air inlet pipeline (101) is communicated with one another by longitudinal passages (105) and lateral duct (106) and forms, air inlet pipeline (101) surface has some ventholes (107), gas mixing device (104 one end are connected with air inlet pipeline (101), gas mixing device (104) other end and air pump (102) with store up ammonia tank (103) and be connected.
4. a kind of composite efficient energy-saving ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: described 3rd shower (31) top is provided with the second demister (9), have some S type passages (91) in described second demister (9), primary heater (43) is installed between described exhaust opening (42) and absorption tower (4).
5. a kind of composite efficient energy-saving ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: described first circulating pump (81) is connected with crystallizing evaporator (6) by secondary heater (61), crystallizing evaporator (6) is connected with ammonium sulfate tank (7) by centrifuge (5), centrifuge (5) is connected with drying machine (51).
CN201420460240.5U 2014-08-14 2014-08-14 A kind of composite efficient energy-saving ammonia process desulfuration tower Expired - Fee Related CN204193768U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420460240.5U CN204193768U (en) 2014-08-14 2014-08-14 A kind of composite efficient energy-saving ammonia process desulfuration tower

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190228A (en) * 2014-08-14 2014-12-10 诸暨洁球环保科技有限公司 Composite, efficient and energy-saving ammonia process desulfurization tower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190228A (en) * 2014-08-14 2014-12-10 诸暨洁球环保科技有限公司 Composite, efficient and energy-saving ammonia process desulfurization tower
CN104190228B (en) * 2014-08-14 2016-04-13 诸暨洁球环保科技有限公司 A kind of composite efficient energy-saving ammonia process desulfuration tower

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Granted publication date: 20150311

Termination date: 20150814