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 PDF

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Publication number
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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tower body
flue gas
interior
gas
spiral
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胡静龄
刘勇
杨颖欣
钟璐
胡小吐
薛学良
杨森林
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Guangdong Jiade Environmental Protection Technology Co Ltd
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Guangdong Jiade Environmental Protection Technology Co Ltd
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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

A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower
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。
CN201821796135.3U 2018-11-01 2018-11-01 A kind of novel double-channel formula ammonia type flue gas desulfurizing gas wash tower Active CN209155509U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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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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Granted publication date: 20190726

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Pledgor: GUANGDONG JIADE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.

Registration number: Y2020440000100

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Denomination of utility model: A new dual channel ammonia flue gas desulfurization and dust removal tower

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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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