CN204768247U - Defogging wet -type desulfurizing tower system - Google Patents

Defogging wet -type desulfurizing tower system Download PDF

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Publication number
CN204768247U
CN204768247U CN201520509294.0U CN201520509294U CN204768247U CN 204768247 U CN204768247 U CN 204768247U CN 201520509294 U CN201520509294 U CN 201520509294U CN 204768247 U CN204768247 U CN 204768247U
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China
Prior art keywords
desulfurizing tower
demist
demister
wet type
flue gas
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Expired - Fee Related
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CN201520509294.0U
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Chinese (zh)
Inventor
曾永健
徐芙蓉
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Zhejiang Rongzhi Energy Technology Co ltd
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Individual
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Abstract

The utility model discloses a defogging wet -type desulfurizing tower system. Because the crude limitation of each side such as wet -type static defroster principle, structure, economic nature lead to its in -process using the various problem unavoidably to appear, and then influence desulfurization system's normal operating. The utility model discloses a characterized in that, the reaction absorption region be flue gas inlet, first layer vortex stick, first layer spray set, second floor vortex stick and second floor spray set in proper order along flue gas flow direction, the high efficiency remove the fog -zone and be whirlwind defroster, mechanical type defroster and exhanst gas outlet in proper order along flue gas flow direction. The utility model discloses a set up vortex stick layer, whirlwind defroster and mechanical type defroster, the droplet of different particle diameters can effectively reduce defogging system pressure loss simultaneously in the high -efficient desorption flue gas of ability, has the advantage that investment and running cost are low.

Description

A kind of demist wet type desulfurizing Tower System
Technical field
The utility model relates to wet flue gas desulfurizer, specifically a kind of demist wet type desulfurizing Tower System.
Background technology
At present, flue gas desulfurization is SO in the control fire coal boiler fume extensively adopted both at home and abroad 2effective ways, coal-burning power plant's generating set overwhelming majority is all provided with desulfurizer, and wherein wet fuel gas desulfurizing technology accounts for about 90% of whole desulfurizer, and application at most, the most effectively process for flue gas desulfurization by limestone/lime-gypsum wet technique.
Process for flue gas desulfurization by limestone/lime-gypsum wet technique adopts two-layer mechanical type demister to remove the drop in flue gas usually, reduce the water content in smoke evacuation, but this demister is to fine droplets and tiny dust removal weak effect, flue gas resistance is large, demister easily blocks, and affects desulphurization system and normally runs.
In recent years, the patent that employing wet-type electrostatic defroster raising wet flue gas desulfurization removes fog effect is more, but due to the limitation that each side such as its principle, structure, economy are natural, electrostatic precipitator is caused unavoidably to occur various problem in the process used, as low in the poor stability in electrostatic precipitator running, efficiency, inconvenient maintenance etc., and then affect the normal operation of desulphurization system.
Utility model content
For solving the problems referred to above existed in current wet fuel gas desulfurizing technology device, the utility model provides a kind of efficient demist wet type desulfurizing Tower System, it arranges tabulator bars in desulfurizing tower body, between spray equipment and traditional mechanical type demister, cyclone demister is set, to reach the object of wet process of FGD droplet efficient removal, reduce investment and operating cost simultaneously.
The utility model adopts following technical scheme: a kind of demist wet type desulfurizing Tower System, comprises desulfurizing tower body, and described desulfurizing tower body is divided into three regions, is respectively slurry pool, reactive absorption district from bottom to up and efficiently removes fog-zone, it is characterized in that,
Described reactive absorption district is followed successively by gas approach, ground floor tabulator bars, ground floor spray equipment, second layer tabulator bars and second layer spray equipment along flow of flue gas direction;
Described efficient fog-zone of removing is followed successively by cyclone demister, mechanical type demister and exhanst gas outlet along flow of flue gas direction.
The setting of tabulator bars, improves gas-liquid heat-transfer, mass-transfer efficiency in sweetening process on the one hand, is formed with the droplet particles being beneficial to cyclone demister and catching on the other hand.After cyclone demister is set, only needs to arrange one-level tradition mechanical type demister, just can reach the object of wet process of FGD droplet efficient removal, have simultaneously and invest and advantage that operating cost is low.Cyclone demister structure is simple, and flow area is large, and resistance is little, and stability is high, and operation maintenance is convenient.
Further, described mechanical type demister is preferably one-level mechanical type demister.
Further, described ground floor tabulator bars and second layer tabulator bars are spatially arranged vertically mutually, promote the effect of tabulator bars.
Further, described cyclone demister has multiple, arranges symmetrically and evenly along desulfurizing tower body circumference.
Further, described cyclone demister comprises cylindrical shell, is located at the gas outlet at cylindrical shell top, is arranged on the cone of cylinder body bottom, is arranged on the flapper of cone base and is located at the air inlet on cylinder lateral wall.
Further, described the upper and lower of mechanical type demister is provided with rinse water arrangement simultaneously.
Further, described demist wet type desulfurizing Tower System also comprises the serum recycle system be connected with slurry pool.
Further, described demist wet type desulfurizing Tower System also comprises the gypsum be connected with slurry pool and discharges system.
Further, described demist wet type desulfurizing Tower System also comprises the oxidation air system be connected with slurry pool.
Operation principle of the present utility model is: flue gas enters from gas approach in the middle part of desulfurizing tower body, at reactive absorption district flue gas, respectively through ground floor tabulator bars, (circulation area becomes very little, flue gas flow rate improves greatly, the large increase of kinetic energy of flue gas stream) (the cold absorbing liquid of ejection forms at a stalemate section an of gas-liquid in this region and causes strong gas-liquid turbulent flow to contact with ground floor spray equipment, smash drop, substantially increase the specific area of absorbent, improve gas-liquid two-phase mass transfer, heat transfer efficiency), then second layer tabulator bars and second layer spray equipment is entered.Due to gas-liquid turbulent flow, define the mist droplet particle size that cyclone demister is suitable for removing, be conducive to the removal efficiency improving cyclone demister.Flue gas is after second layer spray equipment, enter cyclone demister, high gas velocity is utilized to take after fog dust gas enters cylindrical shell, droplet is captured to barrel wall because getting rid of with the high velocity air rotation larger centrifugal force of generation and inertia force, owing to there being centrifugal action, therefore it can trap the droplet less than traditional mechanical type demister.The flue gas removing most of droplet through cyclone demister enters next stage mechanical type demister, and the exhanst gas outlet then through desulfurizing tower top is discharged.The material that cyclone demister and mechanical type demister catch flows into the slurry pool at the bottom of desulfurizing tower together with desulfurization product, the slurries of the non-complete reaction in slurry pool top are beaten to spray equipment by slurry circulating pump, the gypsum slurries that bottom is formed through peroxidating, crystallization is discharged by gypsum system of discharging, slurry pool sidewall arranges stirring system, blasts air be simultaneously oxidized slurries by oxidation air system.
The beneficial effect that the utility model has is: by tabulator bars and cyclone demister with the use of, only need to arrange one-level tradition mechanical type demister, the droplet of different-grain diameter in energy efficient removal flue gas, simultaneously can effectively reduce demister system crushing, there is investment and the low advantage of operating cost simultaneously; Cyclone demister structure is simple, and flow area is large, and resistance is little, and stability is high, and operation maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the layout schematic diagram of the multiple cyclone demister of the utility model.
Fig. 3 is the structural representation of the utility model cyclone demister.
In figure: 1-desulfurizing tower body; 2-serum recycle system; 3-gypsum discharges system; 4-oxidation air system; 5-stirring system; 6-slurry pool; 7-gas approach; 8-ground floor tabulator bars; 9-ground floor spray equipment; 10-second layer tabulator bars; 11-second layer spray equipment; 12-cyclone demister; 13-mechanical type demister; 14-rinse water arrangement; 15-exhanst gas outlet; 16-air inlet; 17-gas outlet; 18-cylindrical shell; 19-cone; 20-flapper.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the utility model is elaborated.
Demist wet type desulfurizing Tower System as shown in the figure, it discharges system 3 by desulfurizing tower body 1 and serum recycle system 2, gypsum, oxidation air system 4, stirring system 5 form.Desulfurizing tower body 1 can be divided into three regions again, is respectively slurry pool 6, reactive absorption district from bottom to up and efficiently removes fog-zone.
Reactive absorption district is followed successively by gas approach 7, ground floor tabulator bars 8, ground floor spray equipment 9, second layer tabulator bars 10 and second layer spray equipment 11 along flow of flue gas direction.Described ground floor tabulator bars and second layer tabulator bars are spatially arranged vertically mutually, and the interrod spacing of first and second layer of tabulator bars can interior adjustment among a small circle.
Efficient fog-zone of removing is followed successively by cyclone demister 12, mechanical type demister 13, mist eliminator flushing water 14 and exhanst gas outlet 15 along flow of flue gas direction.Gas approach 7 is arranged in the middle part of desulfurizing tower body 1, and exhanst gas outlet 15 is arranged on desulfurizing tower body 1 top.Mechanical type demister 13 only establishes one-level, and the upper and lower of mechanical type demister 13 is respectively equipped with rinse water arrangement 14.
The desulfurizing tower body being positioned at below gas approach is slurry pool 6, and slurry pool 6 and serum recycle system 2, gypsum are discharged system 3, oxidation air system 4 and stirring system 5 and be connected.
Described cyclone demister 12 has multiple, arranges symmetrically and evenly along desulfurizing tower body 1 circumference.Cyclone demister 12 is made up of cylindrical shell 18, the gas outlet 17 being located at cylindrical shell top, the cone 19 being arranged on cylinder body bottom, the flapper 20 being arranged on cone base and the air inlet 16 be located on cylinder lateral wall.
Workflow of the present utility model is as follows: flue gas enters desulfurizing tower from desulfurizing tower gas approach 7, from bottom to top through ground floor tabulator bars 8, ground floor spray equipment 9, second layer tabulator bars 10, second layer spray equipment 11, with from the desulfurizer slurry counter current contacting absorbing spray equipment and spray, the SO in flue gas 2be desulfurized the seizure of agent slurries Deng acidic materials, fall after rise in the slurry pool 6 at the bottom of tower with ejecting liquid.Flue gas after desulfurization enters cyclone demister 12, the major part such as drop, fine dust of the various particle diameters contained in flue gas is removed by cyclone demister, small part drop enters mechanical type demister 13 and removes further, mechanical type demister is upper and lower arranges rinse water arrangement, according to pressure reduction or regularly rinse, the flue gas after demist is discharged by the exhanst gas outlet 15 at desulfurizing tower top.The drop of flushing water and demister trapping together enters slurry pool 6 together with desulfurization product, stirring system 5 is provided with in slurry pool, in slurry pool, unemployed desulfurizer slurry can be sent back to spray equipment continuation use by serum recycle system, desulfurization product is oxidized through oxidation air system 4, and crystallization is discharged system 3 by gypsum and discharged.
As mentioned above, although represented with reference to specific preferred embodiments and have expressed the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.

Claims (10)

1. a demist wet type desulfurizing Tower System, comprise desulfurizing tower body (1), described desulfurizing tower body (1) is divided into three regions, is respectively slurry pool (6), reactive absorption district from bottom to up and efficiently removes fog-zone, it is characterized in that
Described reactive absorption district is followed successively by gas approach (7), ground floor tabulator bars (8), ground floor spray equipment (9), second layer tabulator bars (10) and second layer spray equipment (11) along flow of flue gas direction;
Described efficient fog-zone of removing is followed successively by cyclone demister (12), mechanical type demister (13) and exhanst gas outlet (15) along flow of flue gas direction.
2. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, described mechanical type demister (13) is one-level mechanical type demister.
3. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, described ground floor tabulator bars (8) and second layer tabulator bars (10) are spatially arranged vertically mutually.
4. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, described cyclone demister (12) has multiple, arranges symmetrically and evenly along desulfurizing tower body (1) circumference.
5. demist wet type desulfurizing Tower System according to claim 1, it is characterized in that, described cyclone demister (12) comprises cylindrical shell (18), is located at the gas outlet (17) at cylindrical shell top, is arranged on the cone (19) of cylinder body bottom, is arranged on the flapper (20) of cone base and is located at the air inlet (16) on cylinder lateral wall.
6. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, the upper and lower of described mechanical type demister (13) is provided with rinse water arrangement (14) simultaneously.
7. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, it also comprises the serum recycle system (2) be connected with slurry pool (6).
8. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, it also comprises the gypsum be connected with slurry pool (6) and discharges system (3).
9. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, it also comprises the oxidation air system (4) be connected with slurry pool (6).
10. demist wet type desulfurizing Tower System according to claim 1, is characterized in that, it also comprises the stirring system (5) be connected with slurry pool (6).
CN201520509294.0U 2015-07-14 2015-07-14 Defogging wet -type desulfurizing tower system Expired - Fee Related CN204768247U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109966879A (en) * 2017-12-28 2019-07-05 上海华畅环保设备发展有限公司 The method and apparatus of sulphur tail gas after incineration sodium method deep desulfuration control alkali
CN110102161A (en) * 2019-06-13 2019-08-09 石家庄宇清环保科技有限公司 A kind of energy-efficient minimum discharge desulfurizer
CN112275093A (en) * 2019-07-23 2021-01-29 牛双印 Novel water washing tower

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109966879A (en) * 2017-12-28 2019-07-05 上海华畅环保设备发展有限公司 The method and apparatus of sulphur tail gas after incineration sodium method deep desulfuration control alkali
CN110102161A (en) * 2019-06-13 2019-08-09 石家庄宇清环保科技有限公司 A kind of energy-efficient minimum discharge desulfurizer
CN112275093A (en) * 2019-07-23 2021-01-29 牛双印 Novel water washing tower

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: ZHEJIANG RONGZHI ENERGY TECHNOLOGY Co.,Ltd.

Assignor: Xu Furong|Zeng Yongjian

Contract record no.: 2016330000007

Denomination of utility model: Defogging wet -type desulfurizing tower system

Granted publication date: 20151118

License type: Exclusive License

Record date: 20160225

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160622

Address after: Hangzhou city center 310030 Zhejiang province Xihu District three Dun Zhen Xi port development west 3 building 301 room

Patentee after: ZHEJIANG RONGZHI ENERGY TECHNOLOGY Co.,Ltd.

Address before: 1501, room 310007, C District, European and American Center, 18 staff Road, Hangzhou, Zhejiang, Xihu District

Patentee before: Zeng Yongjian

Patentee before: Xu Furong

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118