CN109351168A - A kind of flue gas desulfurization device - Google Patents
A kind of flue gas desulfurization device Download PDFInfo
- Publication number
- CN109351168A CN109351168A CN201811597067.2A CN201811597067A CN109351168A CN 109351168 A CN109351168 A CN 109351168A CN 201811597067 A CN201811597067 A CN 201811597067A CN 109351168 A CN109351168 A CN 109351168A
- Authority
- CN
- China
- Prior art keywords
- dual
- flow tray
- alkali
- tower body
- outlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000003546 flue gas Substances 0.000 title claims abstract description 19
- 239000003513 alkali Substances 0.000 claims abstract description 56
- 238000005406 washing Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000002912 waste gas Substances 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 238000005325 percolation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 9
- 239000007921 spray Substances 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The present invention provides a kind of flue gas desulfurization device, more particularly to desulfurizer field, including tower body, tower body lower end and upper end are respectively equipped with exhaust gas inlet and waste gas outlet, are successively arranged demister shower washing device, demister, first jet distributor, the first dual-flow tray and the second dual-flow tray inside tower body from top to bottom；First jet distributor includes alkali inlet tube road, and alkali inlet tube road runs through tower body side wall, and alkali outlet pipe road is equipped with inside the alkali inlet tube road in tower, and alkali outlet pipe road both ends are enclosed type；The middle part in alkali outlet pipe road connects with alkali inlet tube road；If the side wall in alkali outlet pipe road is equipped with and does alkali mouth；First dual-flow tray is that one piece of circular slab is formed equipped with several through-holes, and the first dual-flow tray and the second dual-flow tray structure are identical.Not only desulfurization effect is good by the present invention, but also high-efficient.
Description
Technical field
The invention belongs to desulfurizer fields, and in particular to a kind of flue gas desulfurization device.
Background technique
Traditional wet desulfurizing process, it is using empty tower spraying process in tower body, i.e., by high-pressure hydraulic pump that lye is defeated
It is sent in tower body, contacts drop with the sulfur dioxide in flue gas by spray and achieve the purpose that desulfurization, tower top flue gas discharging one
As demister, to guarantee desulfurization effect, guaranteeing coming into full contact with for lye and sulfur dioxide gas, it is necessary to the covering journey of lye
Very high, no spray dead zone is spent, just high to the requirement of nozzle in this way, if nozzle is once damage, desulfurization effect drop declines to a great extent, and ties up
Repair inconvenience；
And existing desulfurizer can not accomplish big flow liquid phase, pressure is super due to nozzle depended on pressure control flow
Crossing a certain amount of range drop will be atomized, and go out device with flue gas, significantly waste lye；For small fume treatment
Big flow must be used, guarantees that the pressure of nozzle, such energy consumption are high；Due to using spray-absorption, drop is in tower under gravity
The drop residence time is extremely short short, and desulfuration efficiency is low；Except tower top mist device is simple, easily block.
In view of the above deficiencies, a kind of flue gas desulfurization device is now needed, not only desulfurization effect is good, but also high-efficient.
Summary of the invention
The object of the present invention is to provide a kind of flue gas desulfurization devices, and desulfurization effect is good, and high-efficient.
The present invention provides the following technical solutions:
A kind of flue gas desulfurization device, including tower body, the tower body lower end and upper end is respectively equipped with exhaust gas inlet and exhaust gas goes out
Mouthful, it is successively arranged demister shower washing device, demister, first jet distributor, first from top to bottom inside the tower body
Dual-flow tray and the second dual-flow tray；
The first jet distributor includes alkali inlet tube road, and the alkali inlet tube road runs through the tower body side wall, is located at described
Alkali outlet pipe road is equipped with inside alkali inlet tube road in tower, alkali outlet pipe road both ends are enclosed type；The middle part in the alkali outlet pipe road with
The alkali inlet tube road connects；If the side wall in the alkali outlet pipe road is equipped with and does alkali mouth；Alkali mouth uses solid-cone (type) nozzle out；
First dual-flow tray is that one piece of circular slab is equipped with several through-holes composition, first dual-flow tray and described
Second dual-flow tray structure is identical.
Preferential, second nozzle distributor, third dual-flow tray and the 4th are successively arranged below second dual-flow tray
Dual-flow tray；The second nozzle distributor is identical as first jet structure of distributor；The third dual-flow tray and described
Four dual-flow trays are identical as the first dual-flow tray structure.
Preferential, the through-hole lower end of first dual-flow tray is equipped with mouth, and the mouth out is in loophole shape, the mouth out
Upper end is connected to the through-hole of first dual-flow tray.
Preferential, the both ends in the alkali outlet pipe road, the inner wall positioned at the tower body is equipped with several engaging lugs, the connection
Ear connects with the both ends in the alkali outlet pipe road.
It is preferential, first dual-flow tray, the second dual-flow tray, third dual-flow tray and the 4th dual-flow tray it is outer
It encloses, circular row has several engaging lugs, the engaging lug and first dual-flow tray, described second on the inner wall of the tower body
The side edge of dual-flow tray, the third dual-flow tray and the 4th dual-flow tray；First dual-flow tray, second are worn
Bracket, the both ends of the bracket and the tower body are respectively equipped on the downside of stream sieve plate, third dual-flow tray and the 4th dual-flow tray
Inner wall connect.
Preferential, it is additionally provided with several windows on the lateral wall of the tower body, is equipped with glass in the window.
Beneficial effects of the present invention:
Nozzle distributor of the invention is big flow solid-cone (type) nozzle, guarantees that drop is not atomized, greatlys save lye；Alkali
Liquid, since dual-flow tray is very smooth, also has 3-20 millimeters of liquid by that will be distributed again after dual-flow tray in operation
Position height, this ensures that the liquid phase that each hole of dual-flow tray flows down is consistent, also ensures that the uniformity of spray；Using equal
There is a stop on every layer of column plate again after the dual-flow tray of even cloth hole, drop is made to pool liquid level, what drop declined again
It except speed is 0, therefore is greatly increased than old technique compared to time of contact, when almost no one layer of increase is not increased by one times of stop
Between, gas-liquid contact is just more abundant after the residence time increases, and assimilation effect greatly increases；From demister after flushing type demister
Silk screen is not easy to plug.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is Local map of the present invention；
Fig. 3 is the first dual-flow tray top view.
In the figure, it is marked as 1, demister shower washing device；2, first jet distributor；3, the first dual-flow tray；4,
Two dual-flow trays；5, third dual-flow tray；6, the 4th dual-flow tray；7, second nozzle distributor；8, demister；9, window.
Specific embodiment
As shown in Figure 1 to Figure 3, a kind of flue gas desulfurization device, including tower body, the tower body lower end and upper end are respectively equipped with useless
Gas import and waste gas outlet, are successively arranged demister shower washing device 1, demister 8 inside the tower body from top to bottom, and first
Nozzle distributor 2, the first dual-flow tray 3 and the second dual-flow tray 4, wherein demister 8 includes setting gradually silk screen foam removal up and down
Device and baffle plate demister；First jet distributor 2 includes alkali inlet tube road, and the alkali inlet tube road runs through the tower body side wall, position
Alkali outlet pipe road is equipped with inside the alkali inlet tube road in the tower, alkali outlet pipe road both ends are enclosed type；In order to ensure going out alkali
Uniformly, alkali outlet pipe road may be alternatively provided as annular, and the middle part in the alkali outlet pipe road connects with the alkali inlet tube road；The alkali outlet pipe road
If side wall be equipped with do alkali mouth, out alkali mouth use solid-cone (type) nozzle；First dual-flow tray 3 is that one piece of circular slab is equipped with
Several through-hole compositions, first dual-flow tray 3 are identical with 4 structure of the second dual-flow tray；Traditional lye nozzle is by pressure
Power controls flow, and big flow liquid phase can not be accomplished, pressure is more than that a certain amount of range drop will be atomized, the present apparatus the
One nozzle distributor 2 goes out alkali mouth using big flow, guarantees that drop is not atomized, greatlys save lye；Big flow is selected to go out alkali mouth
For small fume treatment it is necessary that with small flow, but the initial distribution of alkali mouth would not too uniformly out, but drop is fallen
It will be distributed again after to the first dual-flow tray of lower part 3, since dual-flow tray is very smooth, also have 3-20 millimeters in operation
Liquid level, this ensures that the liquid phase that each hole of dual-flow tray flows down is consistent, also ensures that the uniformity of spray；It is logical
Alkali mouth, the lye out for crossing first jet distributor 2 and second nozzle distributor 7 are tentatively distributed after alkali mouth by going out, liquid
It is uniformly distributed again on every section of the first dual-flow tray 3, following second dual-flow tray 4 is then passed sequentially through, since dual-flow tray is very flat
It is whole, 3-20 millimeters of liquid level is also had in operation, this ensures that the liquid phase that each hole of dual-flow tray flows down is consistent,
Also it ensures that the uniformity of spray, then passes through following sieve plate paragraph by paragraph, eventually fall into tower body, recycled by lye pump, tower top
Flue gas after desulfurization carries out pre-separation by baffle plate demister, and bulky grain drop and impurity are removed, baffle plate demister with
The upper efficient wire mesh demister of setting, the drop of diameter < 5-10um is removed again.
Wherein, second nozzle distributor 7, third dual-flow tray 5 and the 4th are successively arranged below second dual-flow tray 4
Dual-flow tray 6；The second nozzle distributor 7 is identical as 2 structure of first jet distributor；The third dual-flow tray 5 and institute
It states that the 4th dual-flow tray 6 is identical as 3 structure of the first dual-flow tray, the distribution number of lye can be improved with this configuration, it can
Keep lye distribution more uniform；The through-hole lower end of first dual-flow tray 3 is equipped with mouth, and the mouth out is in loophole shape, described
The upper end of mouth is connected to the through-hole of first dual-flow tray 3 out, lye can be made to flow backwards by going out mouth, equal convenient for the distribution of lye
It is even；The both ends in the alkali outlet pipe road are equipped with several engaging lugs, the engaging lug and the alkali out positioned at the inner wall of the tower body
The both ends of pipeline connect, and can fix alkali outlet pipe road by engaging lug, bolt can be used and connect；First dual-flow tray 3,
The periphery of two dual-flow trays 4, third dual-flow tray 5 and the 4th dual-flow tray 6, circular row has several on the inner wall of the tower body
Engaging lug, the engaging lug and first dual-flow tray 3, second dual-flow tray 4, the third dual-flow tray 5 and institute
State the side edge of the 4th dual-flow tray 6；First dual-flow tray 3, the second dual-flow tray 4, third dual-flow tray 5 and the 4th
The downside of dual-flow tray 6 is respectively equipped with bracket, and the both ends of the bracket connect with the inner wall of the tower body；It can be incited somebody to action by engaging lug
Device is fixed, and bolt can be used and connect；The demister is used from flushing type demister, passes through demister shower washing device 1
Rinsing demister 8 can be such that silk screen is not easy to plug, and the identical spray of first jet distributor 2 can also be used in demister shower washing device
Structure is drenched, even if in addition wire mesh demister blocks a little after the longer operation cycle again, rinse-system can be enabled, make silk screen foam removal
Device " is brought back to life " again；It is additionally provided with several windows on the lateral wall of the tower body, is equipped with glass in the window, is convenient for by window
Observing tower body inner case
Working method of the invention:
As shown in Figure 1 to Figure 3, exhaust gas enters top from tower body lower part and goes out, and passes through first jet distributor 2 and second nozzle
Distributor 7 goes out alkali mouth, and lye is tentatively distributed after alkali mouth by going out, uniformly distributed again on the first dual-flow tray 3 of every section of liquid,
Then following second dual-flow tray 4 is passed sequentially through, since dual-flow tray is very smooth, also has 3-20 millimeters of liquid level in operation
Highly, this ensures that the liquid phase that each hole of dual-flow tray flows down is consistent, and also ensures that the uniformity of spray, then wear paragraph by paragraph
Following sieve plate is crossed, tower body is eventually fallen into, is recycled by lye pump, the flue gas after tower top desulfurization is carried out by baffle plate demister
Pre-separation removes bulky grain drop and impurity, the efficient wire mesh demister of baffle plate demister arrangement above, by diameter < 5-
The drop of 10um removes again, and demister shower washing device 1, which rinses demister 8, so that silk screen is not easy to plug.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of flue gas desulfurization device, including tower body, the tower body lower end and upper end are respectively equipped with exhaust gas inlet and waste gas outlet,
It is characterized by: demister shower washing device, demister, first jet distribution are successively arranged inside the tower body from top to bottom
Device, the first dual-flow tray and the second dual-flow tray；
The first jet distributor includes alkali inlet tube road, and the alkali inlet tube road runs through the tower body side wall, is located in the tower
Alkali inlet tube road inside be equipped with alkali outlet pipe road, alkali outlet pipe road both ends be enclosed type；The middle part in the alkali outlet pipe road with it is described
Alkali inlet tube road connects；If the side wall in the alkali outlet pipe road is equipped with and does alkali mouth；Alkali mouth uses solid-cone (type) nozzle out；
First dual-flow tray is that one piece of circular slab is formed equipped with several through-holes, first dual-flow tray and described second
Dual-flow tray structure is identical.
2. a kind of flue gas desulfurization device according to claim 1, it is characterised in that: below second dual-flow tray successively
Equipped with second nozzle distributor, third dual-flow tray and the 4th dual-flow tray；The second nozzle distributor and first jet point
Cloth device structure is identical；The third dual-flow tray and the 4th dual-flow tray are identical as the first dual-flow tray structure.
3. a kind of flue gas desulfurization device according to claim 1, it is characterised in that: under the through-hole of first dual-flow tray
It holds and is equipped with mouth, the mouth out is in loophole shape, and the upper end of the mouth out is connected to the through-hole of first dual-flow tray.
4. a kind of flue gas desulfurization device according to claim 1, it is characterised in that: the both ends in the alkali outlet pipe road are located at
The inner wall of the tower body is equipped with several engaging lugs, and the engaging lug connects with the both ends in the alkali outlet pipe road.
5. a kind of flue gas desulfurization device according to claim 2, it is characterised in that: first dual-flow tray, second are worn
The periphery of sieve plate, third dual-flow tray and the 4th dual-flow tray is flowed, circular row has several engaging lugs on the inner wall of the tower body,
The engaging lug and first dual-flow tray, second dual-flow tray, the third dual-flow tray and the 4th percolation
The side edge of sieve plate；The downside of first dual-flow tray, the second dual-flow tray, third dual-flow tray and the 4th dual-flow tray
It is respectively equipped with bracket, the both ends of the bracket connect with the inner wall of the tower body.
6. a kind of flue gas desulfurization device according to claim 1, it is characterised in that: be additionally provided on the lateral wall of the tower body
Several windows, the window is interior to be equipped with glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597067.2A CN109351168A (en) | 2018-12-26 | 2018-12-26 | A kind of flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597067.2A CN109351168A (en) | 2018-12-26 | 2018-12-26 | A kind of flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109351168A true CN109351168A (en) | 2019-02-19 |
Family
ID=65329383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597067.2A Pending CN109351168A (en) | 2018-12-26 | 2018-12-26 | A kind of flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109351168A (en) |
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