CN105833668A - Flue gas desulfurization tower - Google Patents
Flue gas desulfurization tower Download PDFInfo
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- CN105833668A CN105833668A CN201510021012.7A CN201510021012A CN105833668A CN 105833668 A CN105833668 A CN 105833668A CN 201510021012 A CN201510021012 A CN 201510021012A CN 105833668 A CN105833668 A CN 105833668A
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- flue gas
- desulfurizing tower
- fume desulfurizing
- tower
- sintered material
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Abstract
The invention provides a flue gas desulfurization tower. Specifically, the flue gas desulfurization tower comprises a tower body, the lower part of the tower body is provided with a flue gas inlet, the top of the tower body is provided with a flue gas outlet, the tower body is provided with at least one spray layer and at least one sieve plate from top to bottom in order, and the spray layer and the sieve plate are arranged between the flue gas inlet and the flue gas outlet, wherein the spray layer is internally provided with spray elements communicated with an absorbent pipeline, and the spray elements include atomizing nozzles formed by an inorganic porous sintered material. Through the technical scheme, the flue gas desulfurization tower provided by the invention can achieve very good atomization effect under a low pressure, thereby improving the SO2 absorption efficiency, and achieving the effect of reducing the operation energy consumption of the flue gas desulfurization tower.
Description
Technical field
The present invention relates to field of chemical engineering, in particular it relates to a kind of fume desulfurizing tower.
Background technology
Flue gas refers to the mixture of gas and flue dust.Boiler, industrial furnace, thermal power plant, coke oven, water
The operation of the chemical industry equipments such as mud factory, blast furnace, open hearth, converter, electric furnace and catalytic cracking (FCC) device
Substantial amounts of flue gas will be produced.The air pollutants such as a large amount of sulfur and nitrogen oxides contained in flue gas
Bring series of environmental problems.Reducing the discharge containing air pollutants such as sulfur and nitrogen oxides is
The task of top priority of protection environment.Such as standard GB/T 13271-91 " boiler Air Pollutant Emission mark
Accurate ", GB9078-1996 " industrial furnace atmosphere pollutants emission standards ", GB13223-1996 " thermoelectricity
Factory's atmosphere pollutants emission standards ", GB16171-1996 " coke oven atmosphere pollutants emission standards " and
GB4915-1996 " Airborne Pollutants from Cement Plant discharge standard " defines the discharge of pollutant in flue gas
Standard.Therefore, it is necessary to after flue gas is carried out desulphurization and denitration and dust removal process, just can discharge.
In the flue gas desulfurization technique of commercial Application, wet desulphurization is the most the most frequently used and more ripe side
One of method.Conventional FCC regenerated flue gas absorption process have EXXON company WGS wet scrubbing,
The THIOPAQ biotechnology of Uop Inc., the EDV wet scrubbing technology etc. of Belco company.Wherein
The EDV Wet Flue Gas Desulfurization Technology of Belco company has become industrial gas purification and SO2The master reclaimed
Want one of method.Starting commercial Application from 1994, EDV Wet Flue Gas Desulfurization Technology just demonstrates excellent
Different operability and reliability.So far, supporting more than 90 set catalytic cracking units EDV facility,
Maximum of which production capacity is 5Mt/a.
But, in Wet Flue Gas Desulfurization Technology, the SO of fume desulfurizing tower2Absorption efficiency is poor, in order to reach
To desired SO2Assimilation effect, needs SO2Absorbing liquid repeatedly circulating reflux pumps into higher pressure
In desulfurizing tower, thereby produce higher energy consumption.
Summary of the invention
It is an object of the invention to provide a kind of fume desulfurizing tower, the SO of this fume desulfurizing tower2Absorption efficiency is relatively
Height, under relatively low recycle ratio and relatively low pump-in pressure, this fume desulfurizing tower can obtain satisfactory
SO2Assimilation effect, thus reduces the operation energy consumption of fume desulfurizing tower.
It was found by the inventors of the present invention that by will fume desulfurizing tower use by inorganic porous sintered material shape
The atomizer become sprays, it is possible to obtains the best atomizing effect at lower pressures, enters
And improve SO2Absorption efficiency, resulting in the present invention.
To achieve these goals, the invention provides a kind of fume desulfurizing tower, wherein, described flue gas takes off
Sulfur tower includes that tower body, the bottom of described tower body have smoke inlet, and the top of described tower body has flue gas and goes out
Mouthful, it is disposed with at least one spraying layer and at least one sieve tray in described tower body from top to bottom, and
Described spraying layer and described sieve tray are arranged between described smoke inlet and described exhanst gas outlet, wherein,
Described spraying layer is provided with the spray element with absorbent pipeline connection, described spray element include by
The atomizer that inorganic porous sintered material is formed.
By technique scheme, the present invention can obtain the best atomization effect at lower pressures
Really, and then improve SO2Absorption efficiency, achieves the effect of the operation energy consumption reducing fume desulfurizing tower.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with
Detailed description below is used for explaining the present invention together, but is not intended that limitation of the present invention.?
In accompanying drawing:
Fig. 1 be the present invention a kind of preferred implementation in the structural representation of fume desulfurizing tower used.
Fig. 2 is the schematic cross-section of the membrane tube atomizer used by a kind of preferred implementation of the present invention.
Fig. 3 is the cross section signal of the membrane tube atomizer used by another preferred implementation of the present invention
Figure.
Description of reference numerals
1 tower body tower
10 smoke inlet 11 exhanst gas outlets
2 spraying layers
20 spray elements
22 key-course 23 supporting layers
24 transition zone 25 pipelines
3 sieve trays
4 demisters
5 cleaner units
6 absorb liquid pool
7 circulating pumps
8 first filters
9 second filters
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that
Detailed description of the invention described herein is merely to illustrate and explains the present invention, is not limited to the present invention.
With reference to Fig. 1, Fig. 2 and Fig. 3, the invention provides a kind of fume desulfurizing tower, wherein, described flue gas takes off
Sulfur tower includes that tower body 1, the bottom of described tower body 1 have smoke inlet 10, the top tool of described tower body 1
There is exhanst gas outlet 11, in described tower body 1, be disposed with at least one spraying layer 2 and at least from top to bottom
One sieve tray 3, and described spraying layer 2 and described sieve tray 3 be arranged on described smoke inlet 10 and institute
State between exhanst gas outlet 11, wherein, described spraying layer 2 is provided with and absorbent pipeline connection
Spray element 20, described spray element 20 includes the atomizer formed by inorganic porous sintered material.
Wherein, the fume desulfurizing tower of the present invention may be used for the process of various sulfur-containing smoke gas, described sulfur-bearing cigarette
Gas include but not limited to by boiler, industrial furnace, thermal power plant, coke oven, cement plant, blast furnace, open hearth,
The sulfur-containing smoke gas that the chemical industry equipments such as converter, electric furnace and catalytic cracking (FCC) device produce.Described sulfur-bearing
In flue gas, by volume, the content of sulfur dioxide can be 500-3000ppm.
Wherein, sulfur-containing smoke gas can be imported in described tower body 1 by described smoke inlet 10, described flue gas
Flue gas after desulfurization can be processed by outlet 11 is derived from described tower body 1, and described flue gas can be in institute
Stating in tower body 1 and flow from bottom to up, described spraying layer 2 can spray the oxysulfide absorbed in flue gas
Absorbent, described sieve tray 3 can slow down the flow velocity of described absorbent and described flue gas so that described
Absorbent can be fully contacted described flue gas.Under the driving of the pressure being applied on described absorbent, institute
State in absorbent partly or entirely can be on the atomizer that formed by inorganic porous sintered material
Micropore ejection and be atomized.
Wherein, described inorganic porous sintered material can be the various nothings for filtration that can be commercially available
Machine porous sintered material；Preferably, the average pore size of described inorganic porous sintered material is 1nm-50 μm,
Porosity is 10-70%.
Wherein, it is further preferred that the average pore size of described inorganic porous sintered material is 50nm-2 μm.
Under this preferable case, the fume desulfurizing tower of the present invention can obtain better at lower pressures
Atomizing effect.
Wherein, the not particularly requirement of the material of described inorganic porous sintered material, the most described inorganic many
Hole sintered material includes at least in porous metals sintered material, porous ceramic film material and porous silicon carbide
Kind.Porous ceramic film material can include silicon oxide ceramics film, alumina ceramic membrane, zirconia ceramics film and
At least one in titanium oxide ceramics film, in order to reduce the absorbent corrosion to ceramic membrane, it is preferable that institute
State porous ceramic film material and include in alumina ceramic membrane, zirconia ceramics film and titanium oxide ceramics film at least
A kind of.
Wherein, described inorganic porous sintered material can be monolayer, it is also possible to be multilamellar, the most described nothing
Machine porous sintered material can include porous matrix 21 and key-course 22, the average hole of described key-course 22
Footpath is more than the average pore size of described porous matrix 21.
Wherein, the not particularly requirement of the specification of described porous matrix 21, as long as described pottery can be supported
Porcelain film, such as, the average pore size of described porous matrix 21 can be 100nm-10 μm, and thickness can
Thinking 0.5-10mm, porosity can be 40-60%.
Wherein, the material of described porous matrix 21 can be conventional selection, it is preferable that described porous
Matrix 21 is ceramic porous matrix and/or rustless steel porous matrix.The material of described key-course 22 can also
For conventional selection, the most described key-course 22 can be ceramic membrane.
Wherein, described porous matrix 21 can be uniform one layer, it is preferable that described porous matrix 21
Including supporting layer 23 and the transition zone 24 that is arranged between described supporting layer 23 and described key-course 22,
The bore dia of described supporting layer 23 is more than the bore dia of described transition zone 24.Described transition zone can reduce
The hole plug degree of described key-course, extends the service life of described electrodeless porous sintered material.Wherein,
As in figure 2 it is shown, be attached with transition zone 24 on the outer wall of described supporting layer 23, outside described transition zone 24
Being attached with key-course 22 on wall, described absorbent first passes through described supporting layer 23, then through described transition
Layer 24, is then passed through the ejection atomization of described key-course 22.Can also be as it is shown on figure 3, described supporting layer
It is attached with transition zone 24 on the inwall of 23, the inwall of described transition zone 24 is attached with key-course 22, institute
State absorbent and first pass through described key-course 22, then through described transition zone 24, be then passed through described support
Layer 23 ejection atomization.
Wherein it is preferred to, the bore dia of described supporting layer 23 is 200nm-10 μm, and thickness is 0.5-10mm,
Porosity is 40-60%；The bore dia of described transition zone 24 is 100nm-5 μm, and thickness is 20-50 μm,
Porosity is 40-60%.
Wherein, the not particularly requirement of the quantity of described spraying layer 2 and described sieve tray, can be respectively
One or more, it is preferable that described spraying layer 2 is at least two, described sieve tray 3 is at least two,
And described spraying layer 2 and described sieve tray 3 are alternately disposed in described tower body 1.
Wherein it is preferred to, set the most from top to down between described exhanst gas outlet 11 and described spraying layer 2
It is equipped with cleaner unit 5 and demister 4；Absorption liquid pool 6 it is additionally provided with at the bottom of tower below described smoke inlet 10,
It is connected by the pipeline with absorbing liquid circulating pump 7 between described absorption liquid pool 6 with described spraying layer 2.
Wherein, described cleaner unit 5 can remove the solid dust in described flue gas, described demister 4 energy
Enough remove the mist carried secretly in flue gas.Described cleaner unit 5 can be bag-type dust collector and/or membrane tube filtration
Device.Described demister 4 can be mesh mist eliminator.Described absorption liquid pool 6 can be at described tower body 1
The absorbing liquid that middle collection obtains after contacting with sulfur-containing smoke gas with absorbent.Described absorbing liquid circulating pump 7 can
Absorbing liquid circulation is pumped into again in the pipeline of described spraying layer 2, and the spray in the spraying layer 2 stated described in warp
Drench element 20 ejection atomization.
Wherein, the atomization spray that described spray element 20 can all be formed by inorganic porous sintered material
Mouth, it is also possible to part is the atomizer formed by inorganic porous sintered material, remainder is conventional
Nozzle.
Wherein, in order to alleviate the stopping state of the atomizer formed by inorganic porous sintered material, preferably
Ground, is provided with between described spray element 20 and described absorbent pipeline and prevents dust from entering described spray
First dust filter unit 8 of element 20.
Wherein, in order to alleviate the stopping state of the atomizer formed by inorganic porous sintered material, more excellent
Selection of land, has between described circulating pump 7 and described absorption liquid pool 6 and prevents dust from entering described circulating pump 20
The second dust filter unit 9.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention does not limit
Detail in above-mentioned embodiment, in the technology concept of the present invention, can be to the present invention
Technical scheme carry out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention,
In the case of reconcilable, can be combined by any suitable means, in order to avoid unnecessary
Repeating, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a fume desulfurizing tower, it is characterised in that described fume desulfurizing tower includes tower body (1), institute
The bottom stating tower body (1) has smoke inlet (10), and the top of described tower body (1) has flue gas and goes out
Mouthful (11), are disposed with at least one spraying layer (2) and extremely from top to bottom in described tower body (1)
Lack a sieve tray (3), and described spraying layer (2) and described sieve tray (3) are arranged on described flue gas
Between entrance (10) and described exhanst gas outlet (11), wherein, described spraying layer (2) is arranged
The spray element (20) with absorbent pipeline connection, described spray element (20) is had to include by inorganic many
The atomizer that hole sintered material is formed.
Fume desulfurizing tower the most according to claim 1, wherein, described inorganic porous sintered material
Average pore size be 1nm-50 μm, porosity is 10-70%.
Fume desulfurizing tower the most according to claim 2, wherein, described inorganic porous sintered material
Average pore size be 50nm-2 μm.
4. according to the fume desulfurizing tower described in any one in claim 1-3, wherein, described inorganic
Porous sintered material includes in porous metals sintered material, porous ceramic film material and porous silicon carbide at least
A kind of.
Fume desulfurizing tower the most according to claim 4, wherein, described inorganic porous sintered material
Including porous matrix (21) and the key-course (22) that is attached on described porous matrix (21), described
The average pore size of key-course (22) is more than the average pore size of described porous matrix (21).
Fume desulfurizing tower the most according to claim 5, wherein, described porous matrix (21) wraps
Include supporting layer (23) and the transition being arranged between described supporting layer (23) and described key-course (22)
Layer (24), the average pore size of described supporting layer (23) is more than the average pore size of described transition zone (24).
Fume desulfurizing tower the most according to claim 1, wherein, described spraying layer (2) is at least
Two, described sieve tray (3) is at least two, and described spraying layer (2) and described sieve tray (3)
It is alternately disposed in described tower body (1).
Fume desulfurizing tower the most according to claim 1, wherein, described exhanst gas outlet (11) with
Cleaner unit (5) and demister (4) it is provided with the most from top to down between described spraying layer (2)；Described
Absorption liquid pool (6), described absorption liquid pool and described spray it is additionally provided with at the bottom of the tower of smoke inlet (10) lower section
Drench and connected by the pipeline with absorbing liquid circulating pump (7) between layer (2).
Fume desulfurizing tower the most according to claim 1, wherein, described spray element (20) with
The the first dust mistake preventing dust from entering described spray element (20) it is provided with between described absorbent pipeline
Filter (8).
Fume desulfurizing tower the most according to claim 8, wherein, described circulating pump (7) and institute
State to absorb and there is between liquid pool (6) the second dust-filtering preventing dust from entering described circulating pump (20)
Device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021012.7A CN105833668B (en) | 2015-01-15 | 2015-01-15 | A kind of fume desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021012.7A CN105833668B (en) | 2015-01-15 | 2015-01-15 | A kind of fume desulfurizing tower |
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| CN105833668A true CN105833668A (en) | 2016-08-10 |
| CN105833668B CN105833668B (en) | 2018-05-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308770A (en) * | 2017-08-25 | 2017-11-03 | 湖南锐取环保科技有限公司 | Dust arrester |
| CN108619865A (en) * | 2018-06-07 | 2018-10-09 | 安徽万山红环保科技有限公司 | A kind of flue gas desulfurization device |
| CN108686480A (en) * | 2018-06-07 | 2018-10-23 | 苏州赛易特环保科技有限公司 | A kind of desulfurating dust removing device for flue gas |
| CN108939855A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of desulfurizing tower |
| CN108939854A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of desulfurizer |
| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
| CN112827333A (en) * | 2020-12-21 | 2021-05-25 | 国家能源蓬莱发电有限公司 | Atomization absorption synergistic device of wet flue gas desulfurization absorption tower |
| CN115414783A (en) * | 2022-07-19 | 2022-12-02 | 深圳市晟世环保能源股份有限公司 | Gas-liquid atomization spraying mixing device of flue gas denitration equipment and mixing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308770A (en) * | 2017-08-25 | 2017-11-03 | 湖南锐取环保科技有限公司 | Dust arrester |
| CN108619865A (en) * | 2018-06-07 | 2018-10-09 | 安徽万山红环保科技有限公司 | A kind of flue gas desulfurization device |
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| CN108939855A (en) * | 2018-07-31 | 2018-12-07 | 苏州科博思设备工程有限公司 | A kind of desulfurizing tower |
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| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
| CN112827333A (en) * | 2020-12-21 | 2021-05-25 | 国家能源蓬莱发电有限公司 | Atomization absorption synergistic device of wet flue gas desulfurization absorption tower |
| CN112827333B (en) * | 2020-12-21 | 2023-02-03 | 国家能源蓬莱发电有限公司 | Atomization absorption synergistic device of wet flue gas desulfurization absorption tower |
| CN115414783A (en) * | 2022-07-19 | 2022-12-02 | 深圳市晟世环保能源股份有限公司 | Gas-liquid atomization spraying mixing device of flue gas denitration equipment and mixing method thereof |
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|---|---|
| CN105833668B (en) | 2018-05-04 |
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Effective date of registration: 20170527 Address after: 414500 Hunan Province, Yueyang high tech Industrial Park Pingjiang County Innovation Park Kunyu Road No. 3 Applicant after: Hunan China Tianyuan Environmental Engineering Co., Ltd. Address before: 101407 Beijing city Huairou District Yan Xi Zhen Yan Xi Island 50 meters West Applicant before: Beijing Zhongtianyuan Environmental Engineering Co., Ltd. |
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