CN205868002U - Flue gas desulfurization reaction tower - Google Patents
Flue gas desulfurization reaction tower Download PDFInfo
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- CN205868002U CN205868002U CN201620819460.1U CN201620819460U CN205868002U CN 205868002 U CN205868002 U CN 205868002U CN 201620819460 U CN201620819460 U CN 201620819460U CN 205868002 U CN205868002 U CN 205868002U
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Abstract
The utility model discloses a flue gas desulfurization reaction tower, be equipped with regeneration conversion zone, flue gas desulfurization reaction section, defroster and purified gas outlet in the reaction tower, flue gas desulfurization reaction period number in the top of regeneration conversion zone, the gas access is located the flue gas desulfurization reaction section. Flue gas desulfurization reaction section thick liquid pond and regeneration conversion zone bubble generator's liquid inlet is connected, the regenerated air exit linkage of bubble generator gas access and the conversion zone of regenerating, regeneration conversion zone thick liquid pond is carried to the nozzle of flue gas desulfurization reaction section through the pump machine and is added the flue gas desulfurization reaction liquid that has the catalyst. The utility model discloses can accomplish processes such as H2S absorption, oxidation, catalyst regeneration in the reaction tower of integral type, structural design is novel, and the pipeline layout is simple, practices thrift the cost. The utility model discloses the reaction tower is short to H2S's absorption reaction time, and the liquid -gas ratio is low, and reaction efficiency is high, and waste gas that reaction tower itself produced is at the internal recycling, during the part enters the purge gas after through regeneration gas contact thick liquid, not to external world's directness discharged waste gas, greening and environmental protection.
Description
Technical field
This utility model relates to gas purification technique field, is specially one removing H2The desulfurization reaction tower of S.
Background technology
Present Domestic coal gas desulfurization mostly uses wet method, i.e. with alkaline solution absorption hydrogen sulfide, generates sulfur hydrogen salt, simultaneously
Selecting suitable oxidation catalyst, the sulfur hydrogen salt oxidation after absorbing hydrogen sulfide in solution generates elemental sulfur, so that desulfurization
Solution is regenerated, and obtains side-product sulfur.The multistage packed tower of the many employings of desulfurization absorption plant, and supporting arrange regenerator or
Regeneration tank.In order to simplify device, reduce floor space, Publication No. CN101434871B, CN104650993A,
The combination tower of the integral structure of the patent disclosure such as CN104226084A various ways, but, owing to the efficiency of single tower is low,
Tower height reaches 30～40m, and in order to meet lower discharge standard, operation up to standard, even needs to use multiple single column to connect.
Utility model content
Technical purpose of the present utility model is to improve equipment, it is provided that a kind of novel desulfurization reaction tower, makes single column devulcanization
The problems such as hydrogen efficiency is low, equipment is huge are improved.
In order to realize above-mentioned technical purpose, the technical scheme that this utility model provides is:
A kind of desulfurization reaction tower, bottom-up is provided with reaction zone, demister and purified gas outlet, it is characterised in that:
Described reaction zone includes regeneration reaction section and desulphurization reaction section, and desulphurization reaction section is positioned at the top of regeneration reaction section,
Reaction tower gas access is arranged on desulphurization reaction section；
The bottom of described desulphurization reaction section is provided with the first base plate, and desulphurization reaction section passes through the first base plate and regeneration reaction section phase
Every, it being provided with the nozzle spraying reactant liquor in described desulphurization reaction section, the first base plate and reaction tower tower wall constitute the first slurry pool；
Described regeneration reaction section is provided with the second slurry pool, bubble generator, sulfur separating tank, catalyst storage and activation device
And air circulation system, described sulfur separating tank is arranged in the second slurry pool, along the liquid higher than the second slurry pool on its notch
Face；The outlet of described bubble generator is arranged on below the liquid level of the second slurry pool；Described air circulation system includes that air is certainly
Sucker and the regeneration air outlet being arranged on more than the second slurry pool liquid level, described regeneration air outlet expellant gas passes through wind
Machine respectively enters bubble generator gas access and desulphurization reaction section through Exhaust branch pipeline, and described air is arranged on from sucker again
On the tower wall of raw conversion zone or the porch of described blower fan；
In said structure, described first slurry pool is provided with the first serum outlet, and described first serum outlet occurs with bubble
The liquid inlet of device connects；Described second slurry pool is provided with the second serum outlet, and described second serum outlet passes through infusion pipeline
It is connected with the nozzle of desulphurization reaction section.
On the basis of such scheme, improve further or preferably technical scheme also include:
Described regeneration reaction section is provided with sewage draining exit in the bottom of slurry pool, is arranged over precipitation dish, institute at sulfur separating tank
Stating sewage draining exit and be connected with precipitation dish by being provided with the pipeline of dredge pump, the underflow of described precipitation dish enters sulfur separating tank, and overflow is entered
Enter the second slurry pool.
Described desulphurization reaction section constitutes the gas flow of bending by hydraulic barrier, is disposed with spray in described gas flow
Mouth.
The outlet of described bubble generator is arranged between sulfur separating tank outer wall and reaction tower tower wall, the bottom land of sulfur separating tank
Plate raises inclination to sulfur separating tank away from the side that bubble generator exports, and the position of corresponding groove base plate lowest part is provided with and reacts
The sulfur slurry discharge ports of connection outside tower.
As preferably, the cross section of described sulfur separating tank may be configured as trapezoidal, the trapezoidal two waist place cell walls of its cross section with
It is disposed with the outlet of ejector between reaction tower tower wall, and the lower edge of place, trapezoidal bottom cell wall is higher than place, upper base cell wall
Lower edge, make the trough floor of sulfur separating tank raise inclination to the side of place, described bottom cell wall.And place, described upper base
Cell wall can be made up of reaction tower tower wall.Described sulfur separating tank is at its cross section trapezoidal bottom place cell wall and two waist place grooves
The top of wall is provided with froth breaking dividing plate, and described froth breaking dividing plate is sloped downwardly near the one of groove center, and described froth breaking dividing plate can use
Porous plate or netted braided material.
Described first serum outlet is connected with bubble generator liquid inlet by U-shaped liquid sealing pipe, and effect is to prevent from taking off
Reaction of Salmon-Saxl section gas leak.
The top of described sulfur separating tank is provided with the overfall of sulfur foam, and described overfall is with the overflow tank outside reaction tower even
Connect.
It is provided with gas-liquid separation device in described regeneration air outlet conduit.
Beneficial effect:
1) this utility model reaction tower uses FGD by spraying mist, H2The S absorption response time is short, and liquid-gas ratio is low, therefore its reaction
The height of tower and diameter are smaller than conventional art；
2) catalyst regeneration gas recycles, and improves air utilization ratio;
3) catalyst storage and activation device are built in reaction tower, and the waste gas that activation of catalyst produces follows at device interior
Ring, and enter in coal gas by regeneration gas, the most outwardly discharge activation waste gas；
4) this utility model reaction tower can complete H in the reaction tower of integral type2S absorbs, oxidation, and catalyst regeneration waited
Journey, novel in structural design, pipeline is arranged simple, investment reduction cost and operating cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the perspective view of an embodiment；
Fig. 3 is the main TV structure signal of Fig. 2 embodiment；
Fig. 4 is the side-looking structural representation of Fig. 2 embodiment.
Detailed description of the invention
In order to be further elucidated with the technical solution of the utility model and technique effect, below in conjunction with the accompanying drawings and specific embodiment
This utility model is described further.
A kind of desulfurization reaction tower as shown in Figures 1 to 4, is provided with the reaction tower of cylinder, and described reaction tower is provided with gas
The ingredients such as entrance 23, reaction zone, demister 1 and purified gas outlet 24.
Described reaction zone includes regeneration reaction section 15 and desulphurization reaction section 22, and desulphurization reaction section 22 is positioned at regeneration reaction section 15
Top, described gas access 23 is positioned at desulphurization reaction section 22.
The bottom of described desulphurization reaction section 22 is provided with the first base plate 25 being made up of anti-deposition butterfly-type plate, desulphurization reaction section 23
It is isolated with regeneration reaction section 22 by the first base plate 25, the top of desulphurization reaction section 23 folding by some openings alternatively up and down
Stream baffle plate constitutes bending gas flow up and down reciprocatingly, is disposed with atomizer 2 in described gas flow, the first base plate 23 with
Reaction tower tower wall constitutes the first slurry pool of savings spray liquid.
Described regeneration reaction section 22 be provided with the second slurry pool 14, bubble generator 7, sulfur separating tank 16, catalyst storage and
Activation device, air circulation system, precipitation dish (not shown) and sewage draining exit 10.
Described sulfur separating tank 16 is arranged in the second slurry pool 14, along the liquid level higher than the second slurry pool 14 on its notch,
The outlet of described bubble generator 7 is then arranged on below the liquid level of the second slurry pool 14.Described air circulation system includes arranging
Regeneration air outlet 20 and air more than the second slurry pool 14 liquid level are arranged from sucker from sucker (not shown), described air
On the tower wall of reaction tower, described regeneration air exports 20 expellant gas and respectively enters bubble by blower fan 8 through branch line
Generator gas access 4 and desulphurization reaction section 22.
The storage of described catalyst and activation device are provided with the interchangeable catalyst storage tank of two or more 19, and equipment is transported
During row, activate the storage tank of catalyst and thrown in catalyst in slurry pool, meanwhile, to the heating of another storage tank or blast
Activated gas, makes the activation of catalyst in tank.The outlet of described catalyst storage tank 19 is by the conveying pipe being provided with dosing pump 17
Road is connected with the second slurry pool 14.
Described precipitation dish is arranged on the top of regeneration reaction section 15, discharges for precipitate and separate the second slurry pool sewage draining exit 2
Particulate matter, sewage draining exit 2 is arranged on the bottom of the second slurry pool 14, by dredge pump 11 to precipitation dish conveying precipitation serosity,
In described precipitation dish, the underflow containing particulate matter enters sulfur separating tank 16, and overflow then enters in the second slurry pool 14.It is positioned at regeneration anti-
The second base plate bottom the section of answering 22 is anti-deposition base plate, and described sewage draining exit 14 is arranged on the minimum point at the second base plate center.
Described first slurry pool is provided with the first serum outlet 3, and described first serum outlet 3 is by U-shaped liquid sealing pipe and bubble
The liquid inlet 6 of generator connects；Described second slurry pool 14 is provided with the second serum outlet 12, described second serum outlet 12
The atomizer 2 of infusion pipeline with desulphurization reaction section 22 by being provided with circulating pump 13 is connected, and adds to desulphurization reaction section 22 conveying
There is the desulphurization reaction liquid of catalyst.
In the present embodiment, as described in Figure 2, the cross section of described sulfur separating tank 16 is trapezoidal, on it place, base cell wall by
Reaction tower tower wall is constituted, and its bottom and two waist place cell walls are made up of three pieces of rectangle risers.Trapezoidal two waist place cell walls are with anti-
All being disposed with the outlet of ejector between Ying Tata wall, the lower edge of place, bottom cell wall is higher than under the cell wall of place, upper base
Edge, makes the trough floor of sulfur separating tank gradually raise inclination to the side of place, described bottom cell wall.Corresponding groove base plate lowest part
Position be provided with and the sulfur slurry discharge ports 9 connected outside reaction tower.Described sulfur separating tank 16 is in its cross section trapezoidal bottom institute
It is provided with on the top of cell wall and two waist place cell walls to the downward-sloping froth breaking dividing plate 20 of groove inner chamber.
It is provided with gas-liquid separation device 21(demister) in the pipeline of described regeneration air outlet 21.Described sulfur separating tank 20
Top is provided with the overfall of sulfur foam, and described overfall is connected with the overflow tank outside reaction tower.
Desulfurization process:
In desulphurization reaction section 22, pending gas enters desulphurization reaction section 22 from gas access 23, with atomizer 2
The reactant liquor containing catalyst of ejection is fully contacted absorption H2S, H2While S is rapidly absorbed into liquid phase, in the effect of catalyst
Under, HS-Being oxidized to elemental sulfur, fall into the first slurry pool, purified gas flows to gas after droplet removed by demister 1 and goes out
Mouth 24.
In first slurry pool desulphurization reaction section 22 produce desulphurization reaction slurry liquid by gravity flow or booster pump enter
The bubble generator liquid inlet 6 of regeneration reaction section 15, after mixing with the regeneration air entered in bubble generator gas access 7
Enter the second slurry pool 14 of regeneration reaction section 15.Due to the effect of bubble generator 7, regeneration air is dispersed into tiny gas
Steep the serosity discharged with the first slurry pool to mix, form bubble stream.Catalyst in serosity and the O in air2Regenerate after contact,
Elemental sulfur crystallization in serosity forms larger particles and is flotated by microbubble, forms sulfur foam.Bottom the second slurry pool
The swabbing action of outlet, circulating pump 13 and dredge pump 11 etc., the bubble stream on top flows downward, and micro-bubble therein is declining
During constantly connect bridge be agglomerated into air pocket with the solid such as sulfur, after bubble reaches certain size, buoyancy accounts for leading, bubble band
Sulfur to float, rise to opposite side along sulfur separating tank 16 bottom bevel, when the height of sulfur foam exceedes the upper edge of sulfur separating tank 16
It is internal that Shi Yiliu enters sulfur separating tank 16, this increased periods bubble time of contact with desulphurization reaction liquid, promotes catalyst
Regeneration and oxidation analysis sulfur.In sulfur separating tank 16, the foam that elemental sulfur is formed is after froth breaking dividing plate, and elemental sulfur gradually settles
To sulfur separating tank 16, sulphur content makes sulfur-bearing serosity concentrate further from the inclined-plane base arrangement of trench bottom and is collected to minimum point,
Drain into the dehydration equipment such as hydrocyclone, filter tower from sulfur slurry discharge ports 9, ultimately generate side-product sulfur.Work as accumulation
After sulfur foam in sulfur separating tank 16 exceedes sulfur separating tank overfall, the foam that overflow goes out is expelled to the outer overflow tank of tower, passes through
Also the outer dehydration equipment of tower is drained into after froth breaking.
Sulfur separating tank 16 top is provided with some activation of catalyst holding vessels 19, and catalyst uses single or multiple inhomogeneity
When type catalyst needs activation, multiple activation holding vessels can meet different activation requirement, can alternately activate and use, activation
After catalyst be added in the second slurry pool 4 by dosing pump.
In regeneration reaction section 15, unreacted regeneration air enters bubble generator after blower fan 8 pressurizes, and recycles.By
In the swabbing action of blower fan 8, microbubble reaction regeneration section top becomes negative pressure state, can from sucker by the air being located on tower wall
Supplement air to system, can control to absorb air capacity by the regulation valve of blower fan 8 air inlet.Blower fan 8 back segment is provided with Exhaust branch
Pipeline, can enter in the first slurry pool of desulphurization reaction section 22 by partial regeneration gas, after contacting with reactant liquor in slurry pool with
Gas device for transferring.And the part (volume) of desulphurization reaction section 22 is entered from the regeneration air of described regeneration air outlet 20 discharge
Generally enter the 5%～20% of bubble generator part (volume).
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also
Having various changes and modifications, this utility model claims scope by appending claims, description and equivalent thereof
Define.
Claims (9)
1. a desulfurization reaction tower, bottom-up is provided with reaction zone, demister and purified gas outlet, it is characterised in that:
Described reaction zone includes regeneration reaction section and desulphurization reaction section, and desulphurization reaction section is positioned at the top of regeneration reaction section, reaction
Tower gas access is arranged on desulphurization reaction section；
The bottom of described desulphurization reaction section is provided with the first base plate, and desulphurization reaction section is separated by with regeneration reaction section by the first base plate,
First base plate and reaction tower tower wall constitute the first slurry pool, are provided with the nozzle spraying reactant liquor in desulphurization reaction section；
Described regeneration reaction section be provided with the second slurry pool, bubble generator, sulfur separating tank, catalyst storage and activation device and
Air circulation system, described sulfur separating tank is arranged in the second slurry pool, along the liquid level higher than the second slurry pool on its notch；Institute
The outlet stating bubble generator is arranged on below the liquid level of the second slurry pool；Described air circulation system include air from sucker and
Being arranged on the regeneration air outlet of more than the second slurry pool liquid level, described regeneration air outlet expellant gas passes through blower fan through row
Edema caused by disorder of QI bye-pass respectively enters bubble generator gas access and desulphurization reaction section, and described air is arranged on regenerative response from sucker
On the tower wall of section or the porch of described blower fan；
In said structure, described first slurry pool is provided with the first serum outlet, described first serum outlet and bubble generator
Liquid inlet connects；Described second slurry pool is provided with the second serum outlet, and described second serum outlet is by infusion pipeline and takes off
The nozzle of reaction of Salmon-Saxl section connects.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that described regeneration reaction section is at the end of slurry pool
Portion is provided with sewage draining exit, is arranged over precipitation dish at sulfur separating tank, and described sewage draining exit is by being provided with pipeline and the precipitation of dredge pump
Dish connects, and the underflow of described precipitation dish enters sulfur separating tank, and overflow enters the second slurry pool.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that described desulphurization reaction section passes through hydraulic barrier
Constitute the gas flow of bending, in described gas flow, be disposed with nozzle.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that the outlet of described bubble generator is arranged on
Between sulfur separating tank outer wall and reaction tower tower wall, the trough floor of sulfur separating tank export away from bubble generator to sulfur separating tank one
Inclination is raised in side, and the position of corresponding groove base plate lowest part is provided with and the sulfur slurry discharge ports connected outside reaction tower.
A kind of desulfurization reaction tower the most according to claim 4, it is characterised in that the cross section of described sulfur separating tank is ladder
Shape, is all disposed with the outlet of ejector, and trapezoidal bottom between the trapezoidal two waist place cell walls of its cross section and reaction tower tower wall
The lower edge of place cell wall, higher than the lower edge of place, upper base cell wall, makes the trough floor of sulfur separating tank to the one of place, bottom cell wall
Inclination is raised in side.
A kind of desulfurization reaction tower the most according to claim 5, it is characterised in that described sulfur separating tank is trapezoidal at its cross section
The top of place, bottom cell wall and two waist place cell walls is provided with froth breaking dividing plate, and described froth breaking dividing plate is near the one of groove lumen centers
It is sloped downwardly.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that described first serum outlet passes through U-shaped liquid
Tube sealing is connected with bubble generator liquid inlet.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that the top of described sulfur separating tank is provided with sulfur bubble
The overfall of foam, described overfall is connected with the overflow tank outside reaction tower.
A kind of desulfurization reaction tower the most according to claim 1, it is characterised in that be provided with in described regeneration air outlet conduit
Gas-liquid separation device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620819460.1U CN205868002U (en) | 2016-08-01 | 2016-08-01 | Flue gas desulfurization reaction tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620819460.1U CN205868002U (en) | 2016-08-01 | 2016-08-01 | Flue gas desulfurization reaction tower |
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| CN205868002U true CN205868002U (en) | 2017-01-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000094A (en) * | 2016-08-01 | 2016-10-12 | 江苏揽山环境科技股份有限公司 | Desulfurization reaction tower and desulfurization process |
| WO2024001062A1 (en) * | 2022-07-01 | 2024-01-04 | 中国石油天然气集团有限公司 | Carbon dioxide capture method and apparatus |
-
2016
- 2016-08-01 CN CN201620819460.1U patent/CN205868002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000094A (en) * | 2016-08-01 | 2016-10-12 | 江苏揽山环境科技股份有限公司 | Desulfurization reaction tower and desulfurization process |
| WO2024001062A1 (en) * | 2022-07-01 | 2024-01-04 | 中国石油天然气集团有限公司 | Carbon dioxide capture method and apparatus |
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