CN207445927U - A kind of Wet FGD - Google Patents
A kind of Wet FGD Download PDFInfo
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- CN207445927U CN207445927U CN201721477393.0U CN201721477393U CN207445927U CN 207445927 U CN207445927 U CN 207445927U CN 201721477393 U CN201721477393 U CN 201721477393U CN 207445927 U CN207445927 U CN 207445927U
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- desulfurizing tower
- doctor solution
- nozzle
- smoke exhaust
- exhaust pipe
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Abstract
The utility model discloses a kind of Wet FGDs, including smoke exhaust pipe, desulfurizing tower, partition plate group, demister, desulfurization nozzle for liquid, air inlet, flooding nozzle, doctor solution circulating pump, flushing sink, the smoke exhaust pipe is provided with above the desulfurizing tower, flow-stopping plate is provided in the smoke exhaust pipe, having heaters is set above the flow-stopping plate, the desulfurizing tower lower end is provided with feeding door, and the feeding door one side is provided with the air inlet.Advantageous effect is：The utility model uses dual desulfurization method, can more efficient desulfurization, while add the flooding nozzle of demister, demister is enable to clean at any time, ensure the work efficiency of demister, the utilization of partition plate group and circulating pump can be recycled desulfurizing agent, production cost is saved, reduce pollution, the temperature of exiting flue gas can be improved, place the hydrogenesis in flue gas, corrosion is reduced, while can be prevented inside the hydrogenesis condensed in smoke exhaust pipe reflux damage desulfurizing tower.
Description
Technical field
The utility model is related to sulfurization process facilities technical field, more particularly to a kind of Wet FGD.
Background technology
Sulfur dioxide is one of Air Pollutant Discharge, and gas pollutant carries out complicated air in sulfur dioxide and air
Chemical reaction forms sulfate, nitrate second particle, is converted into solid pollutant by gas pollutant, directly results in PM2.5
Rise.
For the Energy Mix of China based on coal, consumption figure accounts for 70% or so of primary energy aggregate consumption, this office
Face will not change within considerable time 21 century.Thermal power plant generates electricity using coal as main fuel, and coal directly burning is released
A large amount of SO2 are released, cause air environmental pollution, and being incremented by with installed capacity, the discharge capacity of SO2 is also being continuously increased.Add
Strong environmental protection work is the important guarantee of China's the Implement of sustainable development strategy.So increase the control dynamics of thermal power plant SO2
Just seem very urgent and necessary.There are three the controlling soil moists of SO2：Desulfurization before burning, desulfurization, that is, cigarette after desulfurization, burning in burning
Desulfurization (FGD), wet process of FGD are considered as most ripe, the control most effective approach of SO2.
Wet desulphurization, feature are that desulphurization system is located at after the end of flue, deduster, and the reaction temperature of sweetening process is low
In dew point, could be discharged so the flue gas after desulfurization needs to reheat.Due to being gas liquid reaction, desulphurization reaction speed is fast, effect
Rate is high, sulfur-removing additives utilization rate is high, when such as making desulfurizing agent with lime, as Ca/S=1, you can reach 90% desulfurization degree,
It is suitble to the flue gas desulfurization of large size coal fired power plant.But the Limestone-gypsum Wet Flue Gas Desulfurization Process used at present is most popular one
Kind method, but still containing a small amount of sulfuric acid mist in flue gas after desulfurization, inorganic salts particle enters and environment is polluted in air, and
And certain droplet condensation is had in smoke exhaust pipe, the structure of desulfurizing tower corrosion the inside is flowed back to, reduces service life of equipment.
The content of the invention
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of Wet FGD.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of Wet FGD, including smoke exhaust pipe, desulfurizing tower, partition plate group, demister, desulfurization nozzle for liquid, air inlet
Mouth, flooding nozzle, rinse sink at doctor solution circulating pump, are provided with the smoke exhaust pipe above the desulfurizing tower, in the smoke exhaust pipe
Flow-stopping plate is provided with, having heaters is set above the flow-stopping plate, the desulfurizing tower lower end is provided with feeding door, the feeding door
One side is provided with the air inlet, and doctor solution collecting tank is provided with below the air inlet, is provided with above the air inlet de-
Sulphur liquid collects main pipe, and the doctor solution collects main pipe one end and is provided with the partition plate group, and doctor solution is provided in the partition plate group
Slot, the desulfurization liquid bath lower section are provided with the flushing sink, are provided with stent below the flushing sink, the stent is set
On desulfurizing tower, lime slurry nozzle is provided with below the partition plate group, the desulfurization nozzle for liquid is provided with above the partition plate group,
The demister is provided with above the desulfurization nozzle for liquid, the flooding nozzle, the flushing are provided with above the demister
Nozzle one side is provided with solenoid electric valve, and the partition plate group other end is provided with flushing water main pipe, under the flushing water main pipe
Side is provided with lime white collecting tank, and lime white circulating pump, the lime white circulating pump are provided with beside the lime white collecting tank
Side is provided with the doctor solution circulating pump.
In said structure, after flue gas enters from the air inlet, it can move up, the lime slurry nozzle can spray stone
Sulfur dioxide in mortar and flue gas is reacted, and generates gypsum, and the lime white fallen can flow to the lime white and receive
Collect tank, continued with by the lime white circulating pump, flue gas continues up afterwards, and the desulfurization nozzle for liquid sprays doctor solution into one
Walk the flue gas in purifying smoke, the partition plate group can collect doctor solution spray, in doctor solution collection main pipe into
Entering the doctor solution collecting tank, continued with afterwards by the doctor solution circulating pump, the flushing water main pipe can discharge flushing water,
The partition plate group is rinsed, flushing water can be flowed through from the flushing sink, and afterwards into the doctor solution collecting tank, flue gas passes through institute
Demister is stated by the acid mist in flue gas of going out, the flooding nozzle can spray flushing water, rinse the demister, enable demister
It uses always, last flue gas is discharged from the smoke exhaust pipe, and the heater in the smoke exhaust pipe can heat flue gas, make droplet
Evaporation no longer condenses, and the flow-stopping plate can prevent the acid solution of condensation from flowing backwards inside the corrosion desulfurizing tower.
In order to further improve a kind of use function of Wet FGD, the smoke exhaust pipe leads to the desulfurizing tower
It crosses and is welded to connect, the desulfurizing tower is made with the smoke exhaust pipe of stainless steel material, and the smoke exhaust pipe passes through with the flow-stopping plate
It is welded to connect, the smoke exhaust pipe is connected by screw with the heater.
In order to further improve a kind of use function of Wet FGD, the desulfurizing tower and the flushing jellyfish
Pipe is connected through a screw thread, and the doctor solution is collected main pipe and is connected through a screw thread with the desulfurizing tower, and the air inlet takes off with described
By being welded to connect, the feeding door is connected sulphur tower with the desulfurizing tower by axis pin.
In order to further improve a kind of use function of Wet FGD, the desulfurizing tower is received with the lime white
Collection tank is connected by conduit, and the doctor solution collecting tank is collected main pipe with the doctor solution and is connected through a screw thread, the lime white
Collecting tank is connected with the lime white circulating pump by conduit, and the doctor solution collecting tank is with the doctor solution circulating pump by leading
Pipe connects.
In order to further improve a kind of use function of Wet FGD, the solenoid electric valve and the flushing
Jellyfish pipe is connected by conduit, and the solenoid electric valve is connected with the flooding nozzle by conduit, the flooding nozzle and institute
It states desulfurizing tower and passes through clamp connection.
In order to further improve a kind of use function of Wet FGD, the demister leads to the desulfurizing tower
Screw connection is crossed, the desulfurization nozzle for liquid passes through clamp connection, the desulfurization nozzle for liquid and the doctor solution with the desulfurizing tower
Circulating pump is connected by conduit.
In order to further improve a kind of use function of Wet FGD, the stent passes through with the partition plate group
Screw connects, and the partition plate group is connected by screw with the desulfurizing tower, and the stent is connected by screw with the desulfurizing tower,
The desulfurization liquid bath is connected by screw with the desulfurizing tower, and the flushing sink is connected by screw with the desulfurizing tower, institute
It states lime slurry nozzle to be connected by conduit with the lime white circulating pump, the lime slurry nozzle passes through clip with the desulfurizing tower
Connection.
The beneficial effects of the utility model are：The utility model uses dual desulfurization method, can more efficiently take off
Sulphur, while the flooding nozzle of demister is added, demister is enable to clean at any time, ensures the work efficiency of demister, partition plate
The utilization of group and circulating pump can be recycled desulfurizing agent, save production cost, reduce pollution, Neng Gouti
The high temperature of exiting flue gas, places the hydrogenesis in flue gas, reduces corrosion, while can prevent the water condensed in smoke exhaust pipe
Inside segregation junction reflux damage desulfurizing tower.
Description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of Wet FGD described in the utility model；
Fig. 2 is a kind of front view of Wet FGD described in the utility model；
Fig. 3 is a kind of partition plate group structure chart of Wet FGD described in the utility model.
The reference numerals are as follows：
1st, smoke exhaust pipe；2nd, flow-stopping plate；3rd, heater；4th, desulfurizing tower；5th, solenoid electric valve；6th, flooding nozzle；7th, demister；
8th, flushing water main pipe；9th, desulfurization nozzle for liquid；10th, doctor solution collects main pipe；11st, partition plate group；12nd, lime slurry nozzle；13rd, air inlet
Mouthful；14th, feeding door；15th, lime white circulating pump；16th, doctor solution circulating pump；17th, lime white collecting tank；18th, doctor solution collecting tank；
19th, desulfurization liquid bath；20th, sink is rinsed；21st, stent.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, a kind of Wet FGD, including smoke exhaust pipe 1, desulfurizing tower 4, partition plate group 11, demisting
Device 7, desulfurization nozzle for liquid 9, air inlet 13, flooding nozzle 6, doctor solution circulating pump 16, flushing sink 20,4 top of desulfurizing tower are set
There is smoke exhaust pipe 1, desulfurizing tower 4 is used for desulfurization, and smoke exhaust pipe 1 is provided with flow-stopping plate 2, flow-stopping plate 2 for discharging flue gas in smoke exhaust pipe 1
Prevent acid solution from flowing backwards, 2 top of flow-stopping plate sets having heaters 3, and heater 3 makes flue gas drying, and 4 lower end of desulfurizing tower is provided with feeding
Door 14, feeding door 14 is for taking out gypsum, and 14 one side of feeding door is provided with air inlet 13, and air inlet 13 is used to be passed through flue gas, into
13 lower section of gas port is provided with doctor solution collecting tank 18, and doctor solution collecting tank 18 is for collecting doctor solution to recycle, air inlet
13 top of mouth is provided with doctor solution and collects main pipe 10, and doctor solution collects main pipe 10 and is used to collect the doctor solution in partition plate group 11, de-
Sulphur liquid collects 10 one end of main pipe and is provided with partition plate group 11, and partition plate group 11 is provided with desulfurization for collecting doctor solution in partition plate group 11
Liquid bath 19, desulfurization liquid bath 19 are used for transmission doctor solution, and 19 lower section of desulfurization liquid bath, which is provided with, rinses sink 20, rinses sink 20 and is used for
Flushing water is transmitted, 20 lower section of sink is rinsed and is provided with stent 21, stent 21 is used to support partition plate group 11, and stent 21 is arranged on desulfurization
On tower 4,11 lower section of partition plate group is provided with lime slurry nozzle 12, and lime slurry nozzle 12 is used to spray lime white, 11 top of partition plate group
Desulfurization nozzle for liquid 9 is provided with, for desulfurization nozzle for liquid 9 for spraying doctor solution, 9 top of desulfurization nozzle for liquid is provided with demister 7, demisting
Device 7 is used for away the acid mist in flue gas, and 7 top of demister is provided with flooding nozzle 6, and flooding nozzle 6 rushes for spraying flushing water
Day with fog 7 is removed, 6 one side of flooding nozzle is provided with solenoid electric valve 5, and solenoid electric valve 5 is used to control the break-make of wash tub pipe, every
11 other end of plate group is provided with flushing water main pipe 8, and flushing water main pipe 8 is used for transmission flushing water, and 8 lower section of flushing water main pipe is set
There is lime white collecting tank 17, lime white collecting tank 17 is for collecting storage lime white to recycle, lime white collecting tank 17
Side is provided with lime white circulating pump 15, and for aspirating lime white, 15 side of lime white circulating pump is set lime white circulating pump 15
There is doctor solution circulating pump 16, doctor solution circulating pump 16 is used to aspirate circulation fluid.
In said structure, after flue gas enters from air inlet 13, it can move up, lime slurry nozzle 12 can spray lime white
It is reacted with the sulfur dioxide in flue gas, generates gypsum, the lime white fallen can flow to lime white collecting tank 17, by lime
Slurry circulating pump 15 continues with, and flue gas continues up afterwards, and desulfurization nozzle for liquid 9 sprays the cigarette in the further purifying smoke of doctor solution
Gas, partition plate group 11 can collect the doctor solution sprayed, enter doctor solution collecting tank 18 in doctor solution collects main pipe 10, afterwards
It is desulfurized liquid circulating pump 16 to continue with, flushing water main pipe 8 can discharge flushing water, rinse partition plate group 11, flushing water can be from flushing
Sink 20 flows through, and afterwards into doctor solution collecting tank 18, flue gas is by demister 7 by the acid mist in flue gas of going out, flooding nozzle 6
Flushing water can be sprayed, demister 7 is rinsed, demister 7 is enable to use always, last flue gas is discharged from smoke exhaust pipe 1, smoke exhaust pipe 1
In heater 3 can heat flue gas, make droplet evaporation no longer condense, flow-stopping plate 2 can prevent condensation acid solution flow backwards corrosion desulfurization
Inside tower 4.
In order to further improve a kind of use function of Wet FGD, smoke exhaust pipe 1 passes through welding with desulfurizing tower 4
Connection, desulfurizing tower 4 is made with smoke exhaust pipe 1 of stainless steel material, smoke exhaust pipe 1 with flow-stopping plate 2 by being welded to connect, smoke exhaust pipe 1 and
Heater 3 is connected by screw, and desulfurizing tower 4 is connected through a screw thread with flushing water main pipe 8, and doctor solution collects main pipe 10 and desulfurizing tower
4 are connected through a screw thread, and with desulfurizing tower 4 by being welded to connect, feeding door 14 is connected air inlet 13 with desulfurizing tower 4 by axis pin, take off
Sulphur tower 4 is connected with lime white collecting tank 17 by conduit, and doctor solution collecting tank 18 is collected main pipe 10 with doctor solution and connected by screw thread
It connects, lime white collecting tank 17 is connected with lime white circulating pump 15 by conduit, doctor solution collecting tank 18 and doctor solution circulating pump 16
It is connected by conduit, solenoid electric valve 5 is connected with flushing water main pipe 8 by conduit, and solenoid electric valve 5 passes through with flooding nozzle 6
Conduit connects, and with desulfurizing tower 4 by clamp connection, demister 7 is connected by screw flooding nozzle 6 with desulfurizing tower 4, doctor solution spray
Mouth 9 is with desulfurizing tower 4 by clamp connection, and desulfurization nozzle for liquid 9 is connected with doctor solution circulating pump 16 by conduit, stent 21 and partition plate
Group 11 is connected by screw, and partition plate group 11 is connected by screw with desulfurizing tower 4, and stent 21 is connected by screw with desulfurizing tower 4, is taken off
Sulphur liquid bath 19 is connected by screw with desulfurizing tower 4, rinse sink 20 be connected by screw with desulfurizing tower 4, lime slurry nozzle 12 and
Lime white circulating pump 15 is connected by conduit, and lime slurry nozzle 12 passes through clamp connection with desulfurizing tower 4.
The basic principle, main feature and advantage of the utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope
It is defined by appending claims and equivalents.
Claims (7)
1. a kind of Wet FGD, it is characterised in that：Including smoke exhaust pipe (1), desulfurizing tower (4), partition plate group (11), demisting
Device (7), desulfurization nozzle for liquid (9), air inlet (13), flooding nozzle (6), doctor solution circulating pump (16), flushing sink (20), it is described
The smoke exhaust pipe (1) is provided with above desulfurizing tower (4), flow-stopping plate (2), the flow-stopping plate (2) are provided in the smoke exhaust pipe (1)
Top sets having heaters (3), and desulfurizing tower (4) lower end is provided with feeding door (14), and feeding door (14) one side is set
There is the air inlet (13), doctor solution collecting tank (18), air inlet (13) top are provided with below the air inlet (13)
It is provided with doctor solution and collects main pipe (10), the doctor solution collects main pipe (10) one end and is provided with the partition plate group (11), described
Desulfurization liquid bath (19) is provided in partition plate group (11), the flushing sink (20), institute are provided with below the desulfurization liquid bath (19)
It states to rinse below sink (20) and is provided with stent (21), the stent (21) is arranged on desulfurizing tower (4), the partition plate group (11)
Lower section is provided with lime slurry nozzle (12), and the desulfurization nozzle for liquid (9), the doctor solution are provided with above the partition plate group (11)
The demister (7) is provided with above nozzle (9), the flooding nozzle (6), the punching are provided with above the demister (7)
It washes nozzle (6) one side and is provided with solenoid electric valve (5), partition plate group (11) other end is provided with flushing water main pipe (8), institute
It states and lime white collecting tank (17) is provided with below flushing water main pipe (8), lime is provided with beside the lime white collecting tank (17)
Circulating pump (15) is starched, the doctor solution circulating pump (16) is provided with beside the lime white circulating pump (15).
2. a kind of Wet FGD according to claim 1, it is characterised in that：The smoke exhaust pipe (1) with it is described
Desulfurizing tower (4) is by being welded to connect, and the desulfurizing tower (4) is made with the smoke exhaust pipe (1) of stainless steel material, the smoke exhaust pipe
(1) with the flow-stopping plate (2) by being welded to connect, the smoke exhaust pipe (1) is connected by screw with the heater (3).
3. a kind of Wet FGD according to claim 1, it is characterised in that：The desulfurizing tower (4) with it is described
Flushing water main pipe (8) is connected through a screw thread, and the doctor solution is collected main pipe (10) and is connected through a screw thread with the desulfurizing tower (4),
For the air inlet (13) with the desulfurizing tower (4) by being welded to connect, the feeding door (14) passes through pin with the desulfurizing tower (4)
Axis connection.
4. a kind of Wet FGD according to claim 1, it is characterised in that：The desulfurizing tower (4) with it is described
Lime white collecting tank (17) is connected by conduit, and the doctor solution collecting tank (18) is collected main pipe (10) with the doctor solution and passed through
It is threadedly coupled, the lime white collecting tank (17) is connected with the lime white circulating pump (15) by conduit, and the doctor solution is received
Collection tank (18) is connected with the doctor solution circulating pump (16) by conduit.
5. a kind of Wet FGD according to claim 1, it is characterised in that：The solenoid electric valve (5) with
The flushing water main pipe (8) is connected by conduit, and the solenoid electric valve (5) is connected with the flooding nozzle (6) by conduit,
The flooding nozzle (6) passes through clamp connection with the desulfurizing tower (4).
6. a kind of Wet FGD according to claim 1, it is characterised in that：The demister (7) with it is described
Desulfurizing tower (4) is connected by screw, and the desulfurization nozzle for liquid (9) passes through clamp connection, the doctor solution with the desulfurizing tower (4)
Nozzle (9) is connected with the doctor solution circulating pump (16) by conduit.
7. a kind of Wet FGD according to claim 1, it is characterised in that：The stent (21) with it is described every
Plate group (11) is connected by screw, and the partition plate group (11) is connected by screw with the desulfurizing tower (4), the stent (21) with
The desulfurizing tower (4) is connected by screw, and the desulfurization liquid bath (19) is connected by screw with the desulfurizing tower (4), the punching
Wash water slot (20) is connected by screw with the desulfurizing tower (4), the lime slurry nozzle (12) and the lime white circulating pump
(15) connected by conduit, the lime slurry nozzle (12) passes through clamp connection with the desulfurizing tower (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477393.0U CN207445927U (en) | 2017-11-08 | 2017-11-08 | A kind of Wet FGD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477393.0U CN207445927U (en) | 2017-11-08 | 2017-11-08 | A kind of Wet FGD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445927U true CN207445927U (en) | 2018-06-05 |
Family
ID=62254160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477393.0U Active CN207445927U (en) | 2017-11-08 | 2017-11-08 | A kind of Wet FGD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729502A (en) * | 2020-08-25 | 2020-10-02 | 山东蓝驰环境科技股份有限公司 | Wet-type desulfurization dusting tower |
| CN112665402A (en) * | 2020-12-08 | 2021-04-16 | 四川省达州钢铁集团有限责任公司 | Desulfurization white smoke treatment system and treatment method thereof |
-
2017
- 2017-11-08 CN CN201721477393.0U patent/CN207445927U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729502A (en) * | 2020-08-25 | 2020-10-02 | 山东蓝驰环境科技股份有限公司 | Wet-type desulfurization dusting tower |
| CN112665402A (en) * | 2020-12-08 | 2021-04-16 | 四川省达州钢铁集团有限责任公司 | Desulfurization white smoke treatment system and treatment method thereof |
| CN112665402B (en) * | 2020-12-08 | 2023-12-26 | 四川省达州钢铁集团有限责任公司 | Desulfurization white smoke treatment system and treatment method thereof |
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