CN208097796U - A kind of wet desulphurization spray column removes fog collector - Google Patents
A kind of wet desulphurization spray column removes fog collector Download PDFInfo
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- CN208097796U CN208097796U CN201820428216.1U CN201820428216U CN208097796U CN 208097796 U CN208097796 U CN 208097796U CN 201820428216 U CN201820428216 U CN 201820428216U CN 208097796 U CN208097796 U CN 208097796U
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- rotary table
- fog collector
- round estrade
- closing rotary
- diversion
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Abstract
Fog collector is removed the utility model discloses a kind of wet desulphurization spray column, the diversion cofferdam for closing rotary table and lower layer for emptying heart round estrade, middle layer including upper layer, the maximum gauge for emptying heart round estrade is equal with the internal diameter of tower body, and top and bottom are open, diversion cofferdam is funnel structure, and the lower end for closing rotary table extends to inside funnel structure；Water from demister to flow down, it is collected in the inner wall for emptying heart round estrade, and it is guided to the outer wall of closing rotary table, under the guide functions of the outer wall of closing rotary table, it flow to the inside of diversion cofferdam, and flow in the mixer for liquid for being located at and removing in the high alkali liquid spraying layer below fog collector by the outlet of the lower end of diversion cofferdam, it is sprayed after being diluted to high alkali liquid.
Description
Technical field
The utility model removes fog collector more particularly to a kind of wet desulphurization spray column.
Background technique
Wet desulphurization is that spray column is common gas-liquid reaction apparatus, and sodium hydroxide lye is pumped to tower top by recirculated water
Spraying layer mix with except fog after, form the droplet whereabouts of dispersion, at the same flue gas adverse current and on, gas-liquid comes into full contact with, right
Flue gas is washed, and the sulfur dioxide in flue gas is washed removal.
Existing wet desulphurization is usually that lye spraying layer is arranged in desulfurizing tower, the lye of spray and flue gas reverse flow
Dynamic, lye is reacted with the sulfur dioxide in flue gas, removes sulfur dioxide.Since a large amount of liquid can be carried during flow of flue gas
Drop, if the direct outlet of flue gas after wet desulphurization, can affect to ambient enviroment.So can be de- in wet process
Demister is arranged in the outlet port of sulphur tower, due to not only containing moisture in the mist that carries in flue gas, also dissolved with sulfuric acid, sulfate,
Sulfur dioxide etc., corrosivity with higher cause to seriously affect to the service life of demister.The acid that demister demisting obtains
Property water droplet generally directly instill desulfurizing tower in, can only fall into tower bottom could effectively in the partially acidic water acid carry out effectively in
With, but be difficult to utilize the partial moisture.
Utility model content
Inventor attempts to clean demister in the top of wet desulphurization spray column setting water distribution spraying layer, to improve
The service life of demister, but after water is mixed with acidity except fog after cleaning, when falling directly into the tower bottom of spray column, equally deposit
The problem of the part shipwreck is to be used effectively, water consume is caused to increase.So inventor attempts to receive in the part water
Collection, is diluted for the lye to the higher concentration for being passed through spray column, obtains the lye of suitable concentration, rationally to utilize the portion
Divide water.
For the above technical problems, the purpose of the utility model is to provide a kind of demistings of wet desulphurization spray column
Water collector.This has except the ejected wash water that fog collector can clean the acid water and demister that demisting obtains
Effect is collected, and is effectively diluted to the lye for the higher concentration being passed through.
In order to solve problem above, the technical solution of the utility model is：
A kind of wet desulphurization spray column removes fog collector, the closed circular for emptying heart round estrade, middle layer including upper layer
The diversion cofferdam of platform and lower layer, the maximum gauge for emptying heart round estrade is equal with the internal diameter of tower body, and top and bottom are open,
Diversion cofferdam is funnel structure, and the lower end for closing rotary table extends to inside funnel structure；
Water from demister is collected, and be guided to the outer wall of closing rotary table to flowing down in the inner wall for emptying heart round estrade,
Under the guide functions of the outer wall of closing rotary table, it is flow to the inside of diversion cofferdam, and flow to by the outlet of the lower end of diversion cofferdam
In except the mixer for liquid in the high alkali liquid spraying layer below fog collector, sprayed after being diluted to high alkali liquid.
Preferably, the top diameter of the closing rotary table is less than the base diameter for emptying heart round estrade.Empty heart round estrade
The water flow got off of inner wall water conservancy diversion can fall directly on the outer wall of closing round estrade, be more advantageous to the water conservancy diversion to water.
It is further preferred that extending to the inside for emptying heart round estrade at the top of the closing rotary table.
Preferably, the angle of the bus for emptying heart round estrade and vertical direction is 10-60 °, preferably 20-45 °.
Preferably, the bus of the closing rotary table and the angle of vertical direction are 30-80 °, preferably 45-60 °.
Preferably, the surrounding at the top of the diversion cofferdam is provided with vertical baffle.The water flowed down can be effectively prevent to splash out.
Preferably, the bus of the funnel structure of the diversion cofferdam and the angle of vertical direction are 30-80 °, preferably 45-
60°。
Preferably, the lower end outlet of the diversion cofferdam is provided with diversion pipe.Diversion pipe is used to spray with the high alkali liquid of lower section
Drenching layer connection.
The beneficial effects of the utility model are：
The fog of demister removing and the inner wall for emptying heart round estrade to the ejected wash water edge of demister flow downward, and in
The weakly acidic water in the part is led under the guide functions three times of the diversion cofferdam of the secondary water conservancy diversion and lower layer of the closing rotary table of layer
It flow in the groove body at the middle part of slot type mixer for liquid, this part water enters the inside of slot type mixer for liquid by groove body, with lye jet pipe
The lye of penetrating mixes, and on the one hand removes acidic materials, and moisture is on the other hand supplemented into lye, can save lye spray
The water consumption of leaching.Lye in slot type mixer for liquid, into lye tank (vat), and passes through liquid distributor by the groove body overflow of its top two sides
Lye is evenly distributed on the cross section of tower body, desulfurization is carried out to flue gas.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the structural schematic diagram of the wet desulfuration tower of the utility model；
Fig. 2 is the structural schematic diagram of demisting water collecting groove；
Fig. 3 is the structural schematic diagram of tank type liquid distributor；
Fig. 4 is the structural schematic diagram of liquid distributor.
Wherein, 1, exhanst gas outlet, 2, moisturizing spraying layer, 3, demister, 4, remove fog collector, 5, tank type liquid distribution
Device, 6, packing layer, 7, drive nozzle, 8, first flowmeter, 9, concentrated base slot, 10, second flowmeter, 11, reactive tank, 12, flue,
13, pH meter, 14, emptying heart round estrade, 15, closing rotary table, 16, diversion cofferdam, 17, slot type mixer for liquid, 18, lye jet pipe, 19,
Communicating pipe, 20, main distributed pipeline, 21, branch distributed pipeline, 22, lye tank (vat).
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As shown in Figure 1, a kind of wet desulphurization spray column, including tower body, demister, moisturizing spraying layer, except fog collector,
Tank type liquid distributor and concentrated base slot 9, wherein gas inlet is arranged in the lower end of tower body, and gas inlet is connect with flue 12, upper end
Exhanst gas outlet 1 is set；Moisturizing spraying layer 2 is set to the top of tower body, connect with clear water source；Demister 3 is set to moisturizing spray
The lower section of layer 2.
As shown in Fig. 2, except fog collector 4 include upper layer empty heart round estrade 14, middle layer closing rotary table 15 and under
The diversion cofferdam 16 of layer empties heart round estrade 14 and is set to the lower end of demister 3, and empty the maximum gauge of heart round estrade 14 with
The internal diameter of tower body is equal；The upper end of closing rotary table 15, which extends to, to be emptied in heart round estrade 14, and diversion cofferdam 16 is funnel structure, envelope
The lower end for closing rotary table 15 extends to inside funnel structure；Except fog is collected along 14 inner wall of heart round estrade is emptied, along intermediate closed circular
The outer wall water conservancy diversion of platform 15 is flowed into tank type liquid distributor by diversion cofferdam 16.The top diameter for closing rotary table 15 is less than to fall
The base diameter of open circles stage body 14.The water flow that the inner wall water conservancy diversion of emptying heart round estrade 14 gets off can fall directly into closing round estrade
On 15 outer wall, it is more advantageous to the water conservancy diversion to water.
As a kind of specific embodiment, the top for closing rotary table 15 extends to the inside for emptying heart round estrade 14.
The bus and the angle of vertical direction for emptying heart round estrade 14 are 10-60 °, preferably 20-45 °, e.g., can for 20 °,
30 °, 40 ° and 45 ° etc..
The bus and the angle of vertical direction for closing rotary table 14 are 30-80 °, preferably 45-60 °, e.g., can for 45 °, 50 °,
55 ° and 60 ° etc..
The surrounding at the top of diversion cofferdam 16 is provided with vertical baffle, and the water flowed down can be effectively prevent to splash out.Diversion cofferdam
The bus of 16 funnel structure and the angle of vertical direction are 30-80 °, preferably 45-60 °, e.g., can for 45 °, 50 °, 55 ° and
60 ° etc..The lower end outlet of diversion cofferdam 16 is provided with diversion pipe.Diversion pipe with the slot type mixer for liquid 17 of lower section for connecting.
As shown in Figure 3 and Figure 4, the tank type liquid distributor includes slot type mixer for liquid 17, lye jet pipe 18, lye tank (vat) 22
And liquid distributor, the bottom and side wall closing of slot type mixer for liquid 17, top is provided with several from one end to the other end and sets side by side
The groove body set, groove body bottom are got through, and the bottom of the diversion cofferdam 16 is located at the top of 17 top center position of slot type mixer for liquid；
Lye jet pipe 18 is set to inside slot type mixer for liquid 17, and is connected to by pump with the concentrated base slot 9；Lye tank (vat) 22 is set to slot type
The lower section of mixer for liquid 17, for receiving the liquid of 17 overflow of slot type mixer for liquid；Liquid distributor is connected to the bottom of lye tank (vat) 22, by alkali
Liquid is evenly distributed on the cross section of tower body.
Demister can carry out demisting to the flue gas after desulfurization, sprayed water, can will be removed to demister by moisturizing spraying layer
Day with fog is cleaned, and the concentration of demister surface acid and salt is reduced, and is mitigated the corrosion to demister, is effectively increased demister
Service life.
The fog of demister removing and the inner wall for emptying heart round estrade to the ejected wash water edge of demister flow downward, and in
The weakly acidic water in the part is led under the guide functions three times of the diversion cofferdam of the secondary water conservancy diversion and lower layer of the closing rotary table of layer
It flow in the groove body at the middle part of slot type mixer for liquid, this part water enters the inside of slot type mixer for liquid by groove body, with lye jet pipe
The lye of penetrating mixes, and on the one hand removes acidic materials, and moisture is on the other hand supplemented into lye, can save lye spray
The water consumption of leaching.Lye in slot type mixer for liquid, into lye tank (vat), and passes through liquid distributor by the groove body overflow of its top two sides
Lye is evenly distributed on the cross section of tower body, desulfurization is carried out to flue gas.
The demister is ripple packing demister.PH meter is provided in the liquid distributor.Liquid distributor is detected by pH meter
In the alkalinity of lye can increase the flow of lye in lye jet pipe if pH is less than normal, if pH is bigger than normal, can suitably subtract
The flow of the lye of small lye jet pipe uses less lye under the premise of reaching preferable desulfuration efficiency.
Several through-holes are provided on lye jet pipe.The aperture of through-hole is required less herein, through-hole aperture can be larger,
It such as can achieve 2-5mm, even more greatly, the resistance of generation is smaller, since the location of lye jet pipe is higher, when the resistance of generation
When power is smaller, the lift demand (relative to drive nozzle is used) to pump can be effectively reduced, spray the conveying of high-concentration alkali liquor
Leaching is easier to realize.
As shown in figure 4, the liquid distributor includes communicating pipe 19, main distributed pipeline 20 and several branch distributed pipelines 21, connect
The upper end of siphunculus 19 is connected to the lye tank (vat) 22, and lower end is connected to the main distributed pipeline 20, several branch distributed pipelines 21
It is perpendicularly fixed at the lower section of main distributed pipeline 20, and is connected to main distributed pipeline 20, the lower end of each distributed pipeline 21
It is provided with several spray apertures.Main distributed pipeline 20 is located at the middle part of main distributed pipeline 20 with the link position of communicating pipe 19,
The link position of branch distributed pipeline 21 and main distributed pipeline 20 is located at the middle part of branch distributed pipeline 21.The steady of liquid distributor can be improved
It is qualitative.
Packing layer 6 is provided with below liquid distributor.The denseer lye that liquid distributor sprays forms liquid in packing layer 6
Film can effectively improve the contact area with flue gas, and then improve the desulfuration efficiency to flue gas.Filler in packing layer 6 is wave
Line filler.The lower section of packing layer 6 is provided with sig water spraying layer, and sig water spraying layer is connected to by pump with tower body bottom.It can be with
The complete lye of the unreacted of tower body bottom is sprayed again.Sig water spraying layer is provided with several drive nozzles 7.It is dilute
The setting position of lye spraying layer is lower, and pump can be easy to for sig water to be pumped to the height.It, can when using drive nozzle 7
Sig water to be sufficiently atomized, the contact area of droplet and flue gas is improved, and then improve the desulfuration efficiency to flue gas.
The bottom of tower body is provided with pH meter.It can be used for measuring the pH value of bottom liquid, if aobvious alkalinity, can repeat to make
With if being difficult to reach preferable desulfurization effect again, by partially liq outlet processing.
A kind of wet desulphurization method, includes the following steps：
1) flue gas, which is passed through in wet desulphurization spray column, carries out desulfurization, and the moisturizing spraying layer of wet desulphurization top of tower is to demister
Clear water is sprayed, demister is cleaned；
2) demister removing drop with demister is cleaned after water except fog collector guide functions under
It flow in the slot type mixer for liquid of tank type liquid distributor, is mixed with the lye of the higher concentration from lye jet pipe, reacted；
3) lye after the preliminarily diluted in slot type mixer for liquid passes through the groove body overflow of two sides at the top of slot type mixer for liquid to alkali
In liquid bath, and lye is evenly distributed on the cross section of tower body by liquid distributor, the packing layer of lower section is fallen in, in packing layer shape
At lye film, desulfurization is carried out to flue gas.
4) sig water spraying layer is set below packing layer, the sig water of tower body bottom is subjected to circulated sprinkling.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of wet desulphurization spray column removes fog collector, it is characterised in that：Emptying heart round estrade including upper layer, middle layer
Closing rotary table and lower layer diversion cofferdam, the maximum gauge for emptying heart round estrade is equal with the internal diameter of tower body, and top and bottom
Portion is open, and diversion cofferdam is funnel structure, and the lower end for closing rotary table extends to inside funnel structure；
Water from demister is collected, and be guided to the outer wall of closing rotary table in the inner wall for emptying heart round estrade, is being sealed to flowing down
It closes under the guide functions of the outer wall of rotary table, flow to the inside of diversion cofferdam, and flow to and be located at by the outlet of the lower end of diversion cofferdam
Except in the mixer for liquid in the high alkali liquid spraying layer below fog collector, to being sprayed after high alkali liquid dilution.
2. according to claim 1 remove fog collector, it is characterised in that：The top diameter of the closing rotary table is less than to fall
The base diameter of open circles stage body.
3. according to claim 2 remove fog collector, it is characterised in that：Emptying is extended at the top of the closing rotary table
The inside of heart round estrade.
4. according to claim 1 remove fog collector, it is characterised in that：The bus for emptying heart round estrade and vertical
The angle in direction is 10-60 °.
5. according to claim 4 remove fog collector, it is characterised in that：The bus for emptying heart round estrade and vertical
The angle in direction is 20-45 °.
6. according to claim 1 remove fog collector, it is characterised in that：The bus and vertical direction of the closing rotary table
Angle be 30-80 °.
7. according to claim 6 remove fog collector, it is characterised in that：The bus and vertical direction of the closing rotary table
Angle be 45-60 °.
8. according to claim 1 remove fog collector, it is characterised in that：The surrounding at the top of the diversion cofferdam is arranged
There is vertical baffle.
9. according to claim 1 remove fog collector, it is characterised in that：The bus of the funnel structure of the diversion cofferdam
Angle with vertical direction is 30-80 °.
10. according to claim 1 remove fog collector, it is characterised in that：The lower end of the diversion cofferdam exports setting
There is diversion pipe.
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| CN201820428216.1U CN208097796U (en) | 2018-03-28 | 2018-03-28 | A kind of wet desulphurization spray column removes fog collector |
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| CN201820428216.1U CN208097796U (en) | 2018-03-28 | 2018-03-28 | A kind of wet desulphurization spray column removes fog collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314452A (en) * | 2019-07-01 | 2019-10-11 | 江苏双良低碳产业技术研究院有限公司 | A kind of flue gas takes off white device |
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2018
- 2018-03-28 CN CN201820428216.1U patent/CN208097796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314452A (en) * | 2019-07-01 | 2019-10-11 | 江苏双良低碳产业技术研究院有限公司 | A kind of flue gas takes off white device |
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