CN209155509U - A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower - Google Patents
A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower Download PDFInfo
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- CN209155509U CN209155509U CN201821796135.3U CN201821796135U CN209155509U CN 209155509 U CN209155509 U CN 209155509U CN 201821796135 U CN201821796135 U CN 201821796135U CN 209155509 U CN209155509 U CN 209155509U
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Abstract
The utility model is a kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower, the outer tower body and interior tower body being overlapped including central axes, the outer tower body is concordant with the interior tower body top horizontal, and it is fixedly connected by sealing transverse slat, the side wall of the outer tower body is provided with gas approach, exhaust pass is connected at the top of the interior tower body, the spiral flue gas guide plate of the sliding board-type of downward spiral is fixedly installed between the outer tower body and interior tower body, the gas approach is connect with the top of the spiral flue gas guide plate, and guidance flue gas is moved downward in tower body inside spin.The utility model guides flue gas screw by the spiral guide plate between inside and outside tower body to extend flue gas circulation path and improve reaction effect to extend gas-liquid contact time, increasing gas liquid interfacial area, reduce doctor solution consumption, realizes the efficient process of flue gas.
Description
Technical field
The utility model relates to a kind of wet process of FGD dedusting technologies, more particularly to a kind of novel double-channel formula ammonia process
Fuel gas desulfurization gas wash tower.
Background technique
The one kind of the ammonia process of desulfurization as high efficiency wet desulfurizing process, China promote and apply accounted for surely a seat it
Ground.Ammonia process is absorption method, and the extensive ammonia source in China can be made full use of to produce sulfur fertilizer, makes up lacking for a large amount of imported sulphurs in China
Mouthful, the pollution of sulfur dioxide not only being administered, but also meet long-term a large amount of Fertilizer demand, the country has carried out constantly research and development and has promoted,
And novel ammonia desulfurizing process is released successively.But ammonia flue gas desulfurization technique, in actual moving process, reaction efficiency is not high,
So that existing desulfurizer often realizes desulfurization by the way that ammonia is excessively added, easily there is ammonium sulfate and show with what exiting flue gas was escaped
As, the escape of ammonium sulfate not only causes secondary pollution to environment, but also affects the economic benefit of desulfurizer, meanwhile, cigarette
Pipe exports to form " blue smoke " or " tobacco " aerosol, has seriously affected the environmental image of manufacturing enterprise.In addition the demisting in tower is set
Standby usually used demister, short with the smoke contacts time, the pressure loss is larger, and defogging effect is bad, therefore, as environmental protection is wanted
The continuous improvement asked, existing desulfurizer are no longer satisfied tightened up production requirement.
CN201610415501.5 discloses a kind of water ammonia type flue gas desulfurizing dust collecting process, is desulfurizing agent in desulfurizing tower using water
Interior scrubbing CO_2, sulfur trioxide and dust carry out neutralization reaction, neutralizer and oxygen as neutralizer using ammonia or air carry out
Oxidation reaction obtains byproduct of ammonium sulfate.The technical solution includes: gas-gas heat exchanger, desulfurizing tower, injector, the neutralization of tubular type first
Reactor, the second neutralization reactor of tubular type, ammonia liquid/gas separator, tubular type oxidation reactor, oxidizing solution separator, chimney, equipment
Between connecting pipeline and pans, air transporting arrangement, liquid transporting apparatus, control and display instrument instrument and various attachmentes, should
Technical solution processing step is more, and program is complicated, and at high cost, application prospect is limited.CN201810736461.3 discloses a kind of vertical
Formula Dual-channel type ash-laden gas washs controlling device, including liquid collecting bucket, flue gas conduction pipe, flue gas washing pipe, demister, flue gas
Purification tank body, inside spin guide vane, flue gas ash removal cloth bag, filter core and gas gathering mask, gas cleaning tank body bottom end are welded with
Liquid collecting bucket is welded with flue gas conduction pipe on gas cleaning tank wall, forms external spiral exhaust gases passes in flue gas conduction pipe,
Flue gas conduction pipe bottom end offers gas inlet, and gas inlet is connected to ash-laden gas delivery pipe.The technical solution passes through outer spiral shell
Rotation exhaust gases passes and inside spin exhaust gases passes extend flow of flue gas path, improve the distance of its washing and filtration, purification, however
Not strong to the processing capacity of flue gas, there is also certain rooms for improvement.
In conclusion the prior art still lacks a kind of efficient, reasonable Dual-channel type ammonia type flue gas desulfurizing dust-extraction unit.
Utility model content
The utility model aim is on the basis of existing technology, to provide a kind of Dual-channel type ammonia type flue gas desulfurizing dedusting
Tower guides flue gas screw to extend flue gas circulation path to extend gas-liquid contact by the spiral guide plate between inside and outside tower body
Time increases gas liquid interfacial area to improve reaction effect, reduce doctor solution consumption, realizes the efficient process of flue gas.This is practical
Novel technical solution is as described below.
A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower, including outer tower body and interior tower body that central axes are overlapped, institute
It is concordant with the interior tower body top horizontal to state outer tower body, and be fixedly connected by sealing transverse slat, the top sidewall of the outer tower body
It is provided with gas approach, exhaust pass is connected at the top of the interior tower body, is fixedly installed between the outer tower body and interior tower body
There is the spiral flue gas guide plate of downward spiral, the gas approach is connect with the top of the spiral flue gas guide plate, and guidance flue gas exists
Tower body inside spin moves downward, the top sealing of the outer tower body, the bottom opening of the interior tower body, the bottom of the interior tower body
On the bottom of the outer tower body, the inner wall of the outer tower body is equipped with several nozzles, and the nozzle is set to described
The outlet of centered position between two layers of spiral flue gas guide plate, a part of nozzle and dosing pump of several nozzles passes through
Pipeline connection, the entrance of the dosing pump connect with desulfurizing agent storage tank, remaining nozzles of several nozzles and circulating pump
Outlet connection, the entrance of the circulating pump are connect with the bottom of the outer tower body.
Flue gas enters outer tower body from gas approach, the flue spiral shell that the space between spiral flue gas guide plate and tower body is formed
Rotation moves downward, and extends the residence time of flue gas, successively has multiple nozzles persistently to spray desulfurizing agent to it during this period.
Flue gas and the desulfurizing agent spilt reach outer tower body bottom, and desulfurizing agent is accumulated in tower bottom, and pass through circulating pump circulated sprinkling again, cigarette
Gas, which is then returned from interior tower body lower end, enters interior tower body.
As preferred embodiment, the inner wall of the interior tower body is provided with several demisting plates tilted down, described to remove
Mist plate interlocks up and down, horizontal cross is arranged.The demisting plate tilted down in flue gas and interior tower containing aerosol collides, and is formed rapid
Stream, and it is trapped in aerosol on demisting plate, the drop of accumulation drops back into outer tower tower bottom along downward demisting plate with spray to be recycled
Leaching, flue gas detour under the demisting plate effect for the installation that is staggered up and down extend the residence time and increase flue gas to exit movement
The probability collided with demisting plate and interior tower body inner wall is to improve the removal efficiency of aerosol.Therefore, interior tower body increases demisting plate, increases
Add turbulent flow efficiently to remove steam and aerosol in flue gas in a manner of colliding, degassing sol can be assisted, reduces pressure drop, it can be high
The phenomenon that imitating removal sulfur dioxide in flue gas and aerosol etc., and saving doctor solution consumption and can be reduced the escaping of ammonia.
Preferably, the length of the demisting plate is the 3/4-4/5 of the interior tower body diameter, and the demisting plate is projected in tower bottom
Length be the interior tower body diameter 1/4-1/2.By in this way, the flue gas is in interior tower body, there is no directly rise
Vertical channel, it will fold rise, with demisting plate multiple impacts.By it was verified that better flue gas can be brought to touch in this way
Efficiency is hit, steam and aerosol in flue gas can be efficiently removed.
Preferably, can have several demisting holes on demisting plate, the percent opening of the demisting plate is 60-85%.Demisting hole
Size, distribution, density can determine according to practical different operating condition.
Preferably, the front and back both sides of the gas approach and the outer tower body and the interior tower body is tangent connects, lower end
Connect with the starting point of the spiral flue gas guide plate.It looks down at the top of gas wash tower, the gas approach connects with the outer tower body
Touching is front on one side, and what the gas approach was contacted with the interior tower body is on one side back.Flue gas can be reduced in this way in cigarette
Friction between road, so that having corrosive flue gas not cause excessive shock to tower body.
Preferably, the injection direction of the nozzle, towards center, spray angles are greater than 120 °.It is described with described
It is symmetrically and evenly distributed centered on the central axes of outer tower body, every layer of no less than 6 nozzle.
Preferably, the diameter ratio of the interior tower body and the outer tower body is 1:2-3, the interior tower body and the outer tower
The ratio between height of body is 1:1.3-1.8.Outer tower body can provide more than diameter ratio between interior tower body to spiral flue gas guide plate
Space, so that the better processing effect of flue gas.Outer tower body is higher than interior tower body, can outer tower body bottom deposit it is a certain amount of de-
Sulphur agent.
The beneficial effects of the utility model have:
(1) flue gas screw is guided to extend flue gas circulation path to extend by the spiral guide plate between inside and outside tower body
Gas-liquid contact time increases gas liquid interfacial area to improve reaction effect, reduce doctor solution consumption, realizes the efficient place of flue gas
Reason；
(2) interior tower body increases demisting plate, increases turbulent flow and efficiently removes steam and aerosol in flue gas in a manner of colliding, can
To assist to remove degassing sol, pressure drop is reduced, can efficiently remove sulfur dioxide in flue gas and aerosol etc., and save doctor solution consumption
And the phenomenon that can be reduced the escaping of ammonia；
(3) the front and back both sides of the gas approach and the outer tower body and the interior tower body is tangent connects, lower end with it is described
The starting point of spiral flue gas guide plate connects.Friction of the flue gas between flue can be reduced in this way, so that having corrosive flue gas
It will not cause excessive shock to tower body.
Detailed description of the invention
Fig. 1 device overall structure diagram；
Tower structural scheme of mechanism in Fig. 2；
Fig. 3 demisting plate structural schematic diagram；
The structural schematic diagram of Fig. 4 gas approach.
Appended drawing reference: outer tower body 1, interior tower body 2, gas approach 3, exhaust pass 4, spiral flue gas guide plate 5, sealing transverse slat 6,
Nozzle 7, charge pump 8, circulating pump 9, demisting plate 10, demisting hole 11.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower, as shown in Figure 1, including the outer tower body 1 that central axes are overlapped
With interior tower body 2, the outer tower body 1 is concordant with interior 2 top horizontal of tower body, and is fixedly connected by sealing transverse slat 6, described outer
The side wall of tower body 1 is provided with gas approach 3, and the top of the interior tower body 2 is connected with exhaust pass 4, the outer tower body 1 and Nei Ta
The spiral flue gas guide plate 5 of the sliding board-type of downward spiral, the gas approach 3 and the spiral flue gas are fixedly installed between body 2
The top of guide plate 5 connects, and guidance flue gas is moved downward in tower body inside spin, the top sealing of the outer tower body 1, the interior tower body
The bottom of 2 bottom opening, the interior tower body 2 is located on the bottom of the outer tower body 1, and the inner wall of the outer tower body is equipped with
Several nozzles 7, the nozzle 7 are set to centered position between two layers of the spiral flue gas guide plate 5, and the nozzle 7 is set
It is placed in centered position between two layers of the spiral flue gas guide plate 5, a part of nozzle 7 of several nozzles 7 and dosing
The outlet of pump 8 is connected by pipeline, and the entrance of the dosing pump 8 is connect with desulfurizing agent storage tank (not shown), several described sprays
Remaining nozzle 7 of mouth 7 is connect with the outlet of circulating pump 9, and the entrance of the circulating pump 9 is connect with the bottom of the outer tower body 1.
Flue gas enters outer tower body 1 from gas approach 1, the cigarette that the space between spiral flue gas guide plate 5 and tower body is formed
The movement of road downward spiral, extends the residence time of flue gas, successively has multiple nozzles 7 de- to its lasting spray during this period
Sulphur agent.Flue gas and the desulfurizing agent spilt reach outer 1 bottom of tower body, and desulfurizing agent is accumulated in tower bottom, and are recycled again by circulating pump 9
Spray, flue gas, which is then returned from the lower end Nei Ta, enters interior tower.
As preferred embodiment, as shown in Fig. 2, the inner wall of the interior tower body 2 removing of being provided with that several tilt down
Mist plate 10, the demisting plate interlocks up and down, horizontal cross is arranged, and the length of the demisting plate is the 3/ of interior 2 diameter of tower body
, the demisting plate is in the 1/4-1/2 that the length that tower bottom projects is interior 2 diameter of tower body.Flue gas containing aerosol with it is interior
The demisting plate collision tilted down in tower, forms turbulent flow, and be trapped in aerosol on demisting plate, the drop of accumulation is along downward
Demisting plate drop back into outer tower tower bottom with spray to be recycled, flue gas detour under the demisting plate effect for the installation that is staggered up and down is transported to outlet
It is dynamic, it extends the residence time and increases the probability of flue gas and demisting plate and the collision of interior tower body inner wall to improve the removal of aerosol
Efficiency.Therefore, it is gentle molten to remove steam in flue gas efficiently increasing turbulent flow in a manner of colliding for the form of interior tower body 2 plus baffle
Glue can assist degassing sol, reduce pressure drop, can efficiently remove sulfur dioxide in flue gas and aerosol etc., and save desulfurization
Agent dosage and the phenomenon that can be reduced the escaping of ammonia.
As preferred embodiment, as shown in figure 3, can have several demisting holes 11 on demisting plate 10, the demisting hole
Percent opening is 60-85%.Size, distribution, the density in demisting hole 11 can be determined according to practical different operating condition.
As preferred embodiment, as shown in figure 4, the front and back both sides of the gas approach 3 and the outer tower body 1 and described
Interior tower body 2 is tangent to connect, and lower end connects with the starting point of the spiral flue gas guide plate 5.Flue gas can be reduced in this way between flue
Friction so that have corrosive flue gas will not cause excessive shock to tower body.
Preferably, the injection direction of the nozzle 7 is greater than 120 ° towards center, spray angles.It is described with described
It is symmetrically and evenly distributed centered on the central axes of outer tower body, every layer of no less than 6 nozzle.
Preferably, the diameter ratio of the interior tower body 2 and the outer tower body 1 is 1:2-3, the interior tower body 2 with it is described outer
The ratio between height of tower body 1 is 1:1.3-1.8.Outer tower body 1 can be provided than diameter ratio between interior tower body 2 to spiral flue gas guide plate 5
More spaces, so that the better processing effect of flue gas.Outer tower body 1 is higher than interior tower body 2, can be in the bottom deposit of outer tower body 1
A certain amount of desulfurizing agent.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although
It is used some specific terms in this specification, these terms are merely for convenience of description, not to the utility model structure
At any restrictions.
Claims (7)
1. a kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower, which is characterized in that including central axes be overlapped outer tower body and
Interior tower body, the outer tower body is concordant with the interior tower body top horizontal, and is fixedly connected by sealing transverse slat, the outer tower body
Top sidewall is provided with gas approach, exhaust pass is connected at the top of the interior tower body, between the outer tower body and interior tower body
It is fixedly installed the spiral flue gas guide plate of downward spiral, the gas approach connect with the top of the spiral flue gas guide plate, draws
It leads flue gas to move downward in tower body inside spin, the top sealing of the outer tower body, the bottom opening of the interior tower body, the interior tower
The bottom of body is located on the bottom of the outer tower body, and the inner wall of the outer tower body is equipped with several nozzles, and the nozzle is set
It is placed in centered position between two layers of the spiral flue gas guide plate, a part of nozzles of several nozzles and dosing pump
Outlet is connected by pipeline, and the entrance of the dosing pump connect with desulfurizing agent storage tank, remaining nozzle of several nozzles and
The outlet of circulating pump connects, and the entrance of the circulating pump is connect with the bottom of the outer tower body.
2. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 1, which is characterized in that the interior tower body
Inner wall be provided with several demisting plates tilted down, the demisting plate interlocks up and down, horizontal cross setting.
3. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 2, which is characterized in that the demisting plate
Length be the interior tower body diameter 3/4-4/5, the length that the demisting plate project in tower bottom is the interior tower body diameter
1/4-1/2。
4. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 3, which is characterized in that have on demisting plate
Several demisting holes, the percent opening of the demisting plate are 60-85%.
5. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 2 or 3, which is characterized in that it is described enter
The front and back both sides of mouthful flue and the outer tower body and the interior tower body is tangent connects, the starting point of lower end and the spiral flue gas guide plate
Connect.
6. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 2 or 3, which is characterized in that the spray
The injection direction of mouth is greater than 120 ° towards center, spray angles.
7. novel double-channel formula ammonia type flue gas desulfurizing gas wash tower according to claim 2 or 3, which is characterized in that in described
The diameter ratio of tower body and the outer tower body is 1:2-3, and the ratio between the interior tower body and the height of the outer tower body are 1:1.3-
1.8。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821796135.3U CN209155509U (en) | 2018-11-01 | 2018-11-01 | A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821796135.3U CN209155509U (en) | 2018-11-01 | 2018-11-01 | A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495137A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and method for industrial flue gas catalytic cracking |
| CN112546801A (en) * | 2020-11-04 | 2021-03-26 | 赵红飞 | Flue gas desulfurization, denitrification and whitening equipment |
-
2018
- 2018-11-01 CN CN201821796135.3U patent/CN209155509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495137A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and method for industrial flue gas catalytic cracking |
| CN112546801A (en) * | 2020-11-04 | 2021-03-26 | 赵红飞 | Flue gas desulfurization, denitrification and whitening equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel double-channel type ammonia-process flue gas desulfurization and dust removal tower Effective date of registration: 20200508 Granted publication date: 20190726 Pledgee: Guangzhou Branch of Guangzhou Bank Co.,Ltd. Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020440000100 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210608 Granted publication date: 20190726 Pledgee: Guangzhou Branch of Guangzhou Bank Co.,Ltd. Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020440000100 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new dual channel ammonia flue gas desulfurization and dust removal tower Effective date of registration: 20210721 Granted publication date: 20190726 Pledgee: Guangzhou Branch of Guangzhou Bank Co.,Ltd. Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000248 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220823 Granted publication date: 20190726 Pledgee: Guangzhou Branch of Guangzhou Bank Co.,Ltd. Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2021440000248 |