CN106268127B - V2O5Reduction kiln restores exhaust gas recovery system and recovery process - Google Patents
V2O5Reduction kiln restores exhaust gas recovery system and recovery process Download PDFInfo
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- CN106268127B CN106268127B CN201610664835.6A CN201610664835A CN106268127B CN 106268127 B CN106268127 B CN 106268127B CN 201610664835 A CN201610664835 A CN 201610664835A CN 106268127 B CN106268127 B CN 106268127B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G31/00—Compounds of vanadium
- C01G31/02—Oxides
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- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses one kind can safe retrieving restore tail gas, recycling reduction tail gas in V2O3The V of dust2O5Reduction kiln restores exhaust gas recovery system and recovery process.The V2O5Reduction kiln restores exhaust gas recovery system, including Venturi tube, water removal dedirt device, sedimentation basin and exhaust pipe；The exhaust pipe is communicated to Venturi tube；The first valve, online oxygen analyzer, desorption tube, quick action emergency valve are provided on the exhaust pipe；Diffusion valve is provided on desorption tube；Described desorption tube one end is provided with igniting altar lamp, the diffusion valve and quick action emergency valve and controls opening and closing by online oxygen analyzer；The Venturi tube, water removal dedirt device, sedimentation basin are sequentially communicated.The recovery process, including step：1) detection reduction tail gas oxygen content；2) opening and closing of diffusion valve and quick action emergency valve is controlled according to testing result.The waste that the energy and resource can be reduced using the exhaust gas recovery system and recovery process, reduces the pollution of environment；Improve the safety of tail gas recycle.
Description
Technical field
The present invention relates to metallurgical tail gas recycling, especially a kind of V2O5Reduction kiln restores exhaust gas recovery system and one kind
V2O5Reduction kiln restores solvent recovery technology from vent gas.
Background technology
It is well known：Work as V2O5When reduction kiln is external-heating rotary kiln, combustion chamber internal combustion burns the high-temperature flue gas of producer gas generation
Indirectly heat carried out to the material in revolving drum, material be heated to after certain temperature with the coke-stove gas that is passed through in revolving drum into
Row reaction, produces qualified V2O3Product.The tail gas come out from revolving drum contains the fuel gas of certain composition, is directed to big
Ignition in gas then carries out high altitude discharge.Pass through V known to sample examination2O5Reduction kiln reduction tail gas, which still contains, largely may be used
Ingredient is fired, wherein CO accounts for 7.8%, CnHm and accounts for 1.67%, H2Account for 35%, CH417.63% is accounted for, the calorific value of tail gas can reach 2566-
3180Kcal/Nm3, it is ignited high altitude discharge after burning, causes the waste of the energy.V simultaneously2O5Reduction kiln reduction tail gas is taken out of
A large amount of dust, reach since reduction exhaust temperature is excessively high 900 DEG C or so and reduction kiln kiln inner pressure itself will less than 200Pa,
The dust that reduction tail gas is taken out of could not be cleaned always recycling, not only cause environmental pollution, also create V2O3Waste.
Invention content
Technical problem to be solved by the invention is to provide one kind can safe retrieving restore tail gas, recycling be reduced tail
The V of gas entrainment2O3The V of dust2O5Reduction kiln restores exhaust gas recovery system.
The technical solution adopted by the present invention to solve the technical problems is：V2O5Reduction kiln restores exhaust gas recovery system, including
The exhaust pipe of Venturi tube, water removal dedirt device, sedimentation basin and the offgas outlet having mounted on reduction kiln；
The exhaust pipe is communicated to Venturi tube；Direction on the exhaust pipe from from reduction kiln to Venturi tube is successively
It is provided with online oxygen analyzer, desorption tube, quick action emergency valve；The first valve is additionally provided on the exhaust pipe；It is described to put
Diffusion valve is provided in separate tube；Described desorption tube one end is connected to exhaust pipe, and the other end is provided with igniting altar lamp, described
Diffusion valve and quick action emergency valve are controlled by online oxygen analyzer to be opened and closed；
The Venturi tube has liquid inlet, gas access and liquid outlet；The liquid outlet of the Venturi tube with remove
The entry to mixed solution connection that water dedirt utensil has, the gas vent that the water removal dedirt utensil has are provided with wind turbine；The water removal
The liquid outlet that dedirt utensil has is connected to sedimentation basin；The sedimentation basin has discharge outlet and sewage draining exit.
Further, the V2O5Reduction kiln restores exhaust gas recovery system, further includes circulatory pool, circulating pump；The precipitation
The discharge outlet that pond has is connected to circulatory pool, and the circulatory pool is connected to by circulating pump with the liquid inlet that Venturi tube has, institute
It states circulatory pool bottom and is provided with cycle sewage draining exit.
Further, it is additionally provided with the second valve on the exhaust pipe；The quick action emergency valve is located at the first valve
And second between valve.
Further, it is provided with chimney on the igniting altar lamp.
The present invention also provides a kind of V2O5Reduction kiln restores solvent recovery technology from vent gas, using V as described in claim 12O5
Reduction kiln restores exhaust gas recovery system, further comprising the steps of：
1) oxygen content in the reduction tail gas of the offgas outlet discharge of reduction kiln is detected by online oxygen analyzer；
2) according to the opening and closing of the output control diffusion valve and quick action emergency valve of the detection of online oxygen analyzer；
When detecting oxygen content >=1% in reduction tail gas so that diffusion valve is opened, and quick action emergency valve is closed；Also Primordial Qi
Body is diffused by desorption tube, and the igniting altar lamp above desorption tube is lighted；
When detecting oxygen content ＜ 1% in reduction tail gas so that diffusion valve is closed, and quick action emergency valve is opened；It will reduction
Tail gas is passed into Venturi tube；Tail gas is washed by cleaning solution in Venturi tube, then will be inhaled by water removal dedirt device
Cleaning solution after ending gas is detached, and isolated gas is taken away by wind turbine, and isolated solution is sent into sedimentation basin
Precipitation recycling is carried out to the V2O3 in solution.
The beneficial effects of the invention are as follows：V of the present invention2O5Reduction kiln restores exhaust gas recovery system due in reduction kiln
Offgas outlet online oxygen analyzer is set, monitoring reduction tail gas by online oxygen analyzer confirms whether tail gas can return safely
It receives, and controls the switch of diffusion valve and quick action emergency valve to complete the recycling of reduction kiln exhaust gas and diffuse the switching of state；Therefore
V of the present invention2O5Reduction kiln restores exhaust gas recovery system, can not only recycle the V for being reduced tail gas entrainment2O3Dust, to
The waste of the energy and resource is reduced, V is reduced2O3Pollution of the dust to environment, while also ensuring safely recycling reduction tail gas,
Improve the safety of tail gas recycle.V of the present invention2O5Reduction kiln restores solvent recovery technology from vent gas due to using above-mentioned V2O5Also
Former kiln restores exhaust gas recovery system, therefore can realize that the safe retrieving of reduction tail gas utilizes, while can be in reduction tail gas
V2O3Dust is recycled, and pollution of the tail gas to environment is reduced.
Description of the drawings
Fig. 1 is V in the embodiment of the present invention2O5Reduction kiln restores the structural schematic diagram of exhaust gas recovery system；
It is indicated in figure：1- coke-stove gas delivery pipes, 11- restore branch pipe, and 12- heats branch pipe, 13- fuel manifolds, 2- reduction
Kiln, 3- exhaust pipes, the first valves of 31-, the second valves of 32-, 4- quick action emergency valves, 5- Venturi tubes, 6- remove water dedirt device,
61- entry to mixed solution, 62- liquid outlets, 63- gas vents, 7- sedimentation basins, 71- sewage draining exits, 8- circulatory pools, 81- recycle blowdown
Mouthful, 9- wind turbines, 10- circulating pumps.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, V of the present invention2O5Reduction kiln restores exhaust gas recovery system, including Venturi tube 5, water removal dedirt
The exhaust pipe 3 of device 6, sedimentation basin 7 and the offgas outlet 21 having mounted on reduction kiln 2；
The exhaust pipe 3 is communicated to Venturi tube 5, on the exhaust pipe 3, from reduction kiln 2 to the side of Venturi tube 5
To being disposed with online oxygen analyzer 22, desorption tube 24, quick action emergency valve 4；It is additionally provided with first on the exhaust pipe 3
Valve 31；Diffusion valve 23 is provided on the desorption tube 24；
24 one end of the desorption tube is connected to exhaust pipe 3, and the other end is provided with igniting altar lamp 14, the diffusion valve
23 and quick action emergency valve 4 by have online oxygen analyzer 22 control opening and closing；
The Venturi tube 5 has liquid inlet, gas access and liquid outlet；The liquid outlet of the Venturi tube 5 with
The entry to mixed solution 61 that water removal dedirt device 6 has is connected to, and the gas vent 63 that the water removal dedirt device 6 has is provided with wind turbine 9；
The liquid outlet 62 that the water removal dedirt device 6 has is connected to sedimentation basin 7；The sedimentation basin 7 has discharge outlet and sewage draining exit
71。
In the process of work：
As shown in Figure 1, coke-stove gas is transported in reduction kiln 2 by coke-stove gas delivery pipe, coke-stove gas is in reduction kiln 2
V2O5It is restored, then generates reduction tail gas.
Tail gas is restored to be discharged from the exhaust pipe 3 of the offgas outlet 21 of reduction kiln 2.Since the exhaust pipe 3 connects
Lead to Venturi tube 5；On the exhaust pipe 3 online oxygen analyzer is disposed with from reduction kiln 2 to the direction of Venturi tube 5
22, desorption tube 24, quick action emergency valve 4；The first valve 31 is additionally provided on the exhaust pipe 3；It is set on the desorption tube 24
It is equipped with diffusion valve 23；The diffusion valve 23 and quick action emergency valve 4 are controlled by online oxygen analyzer 22 simultaneously is opened and closed；Therefore,
Reduction tail gas is first detected the oxygen content in reduction tail gas by online oxygen analyzer 22.
It (restores tail gas to be not easy to light, general oxygen content is less than 1% also when detecting that reduction tail gas oxygen content is relatively low
Protocercal tail gas is not easy to be ignited), online oxygen analyzer 22 controls diffusion valve 23 and closes at this time, and quick action emergency valve 4 is opened；Reducing gas
It is transported in Venturi tube 5 by exhaust pipe 3, the washing for being passed through reduction tail gas by the liquid inlet on Venturi tube 5 at this time is molten
Liquid restores the V in tail gas2O3And dust will be mixed into washing solution, while the temperature for restoring tail gas is lowered.Then
The mixture of gas and washing solution is transported to by the liquid outlet of Venturi tube 5 in water removal dedirt device 6；In water removal dedirt device 6
It is interior to detach the gas being discharged out of Venturi tube 5 with the mixture of liquid, while final dusting is carried out to tail gas；It detaches
To the wind turbine 9 that is arranged by the gas vent 63 of water removal dedirt device 6 of tail gas be sucked out；Isolated liquid is by water removal dedirt device 6
Liquid outlet 62 be transported in sedimentation basin 7 and precipitated.It is removed water in sedimentation basin 7 in the isolated liquid of dedirt device 6
V2O3And other dusts carry out natural sedimentation, the solution after precipitation is discharged by the discharge outlet of top sedimentation basin 7, is precipitated
V2O3And the mud of other dusts is discharged by sewage draining exit 71, the V that further sewage draining exit 71 can be discharged2O3It is recycled
It utilizes.
When detecting that reduction tail gas oxygen content is higher (it is easy to light that is, oxygen content is higher in reduction tail gas, it is general to contain
Oxygen amount is more than that 1% reduction tail gas is easily ignited), online oxygen analyzer 22 controls diffusion valve 23 and opens at this time, quick action emergency valve 4
It closes；Reducing gas is discharged by desorption tube 24, since 24 top of desorption tube is provided with igniting altar lamp 14, pass through igniting
Altar lamp 14 ignite desorption tube 24 discharge tail gas.Reduction tail gas is no longer transported to Venturi tube by exhaust pipe road 3 at this time
In 5, to ensure to restore safely absorbing for tail gas.
In conclusion V of the present invention2O5Reduction kiln restores exhaust gas recovery system due to the offgas outlet in reduction kiln 2
The 21 online oxygen analyzers 22 of setting, by online oxygen analyzer 22 monitor reduction tail gas confirm tail gas whether can safe retrieving,
And the switch of diffusion valve 23 and quick action emergency valve 4 is controlled to complete the recycling of reduction kiln exhaust gas and diffuse the switching of state；Therefore
V of the present invention2O5Reduction kiln restores exhaust gas recovery system, can not only recycle the V for being reduced tail gas entrainment2O3Dust, to
The waste of the energy and resource is reduced, V is reduced2O3Pollution of the dust to environment, while also ensuring safely recycling reduction tail gas,
Improve the safety of tail gas recycle.
In order to realize that recycling for reduction washing tail gas solution, the washing solution of the reduction tail gas generally use water.
Further, the V2O5Reduction kiln restores exhaust gas recovery system, further includes circulatory pool 8, circulating pump 10；The sedimentation basin 7 has
Some discharge outlet are connected to circulatory pool 8, and the circulatory pool 8 is connected to by circulating pump 10 with the liquid inlet that Venturi tube 5 has, institute
It states 8 bottom of circulatory pool and is provided with cycle sewage draining exit 81.
By the way that circulatory pool 8 to be connected to the discharge outlet of sedimentation basin 7, so that absorbing V in reduction tail gas2O3Washing it is molten
Liquid Precipitation V in sedimentation basin 72O3It is stored in again in circulatory pool 8 afterwards.Then text is again fed to by circulating pump 10
In family name's pipe 5, to realize recycling for washing tail gas solution, vent gas treatment cost is reduced, saves washing tail gas solution.
For the ease of the maintenance of quick action emergency valve 4, further, the second valve is additionally provided on the exhaust pipe 3
32；The quick action emergency valve 4 is between the first valve 31 and the second valve 32.It is needing to overhaul quick action emergency valve 4
When close the first valve 31 and the second valve 32, you can quick action emergency valve 4 is overhauled.It can not only avoid promptly cutting at this time
Disconnected valve 4 is connected to reduction kiln 2, is also avoided that quick action emergency valve 4 is connected to Venturi tube 5.
For the ease of by desorption tube 24 diffuse reduction exhaust combustion after flue gas discharge, further, the igniting
Chimney 25 is provided on altar lamp 14.
The present invention also provides a kind of V2O5Reduction kiln restores solvent recovery technology from vent gas, using above-mentioned V2O5Reduction kiln also protocercal tail
Gas recovery system, it is further comprising the steps of：
1) oxygen content in the reduction tail gas that the offgas outlet 21 of reduction kiln 2 is discharged by online oxygen analyzer 22 carries out
Detection；
2) opening and closing of the output control diffusion valve 24 and quick action emergency valve 4 detected according to online oxygen analyzer 22；
When detecting oxygen content >=1% in reduction tail gas so that diffusion valve 23 is opened, and quick action emergency valve 4 is closed；Reduction
Gas is diffused by desorption tube 24, and the igniting altar lamp 14 of 24 top of desorption tube is lighted；
When detecting oxygen content ＜ 1% in reduction tail gas so that diffusion valve 23 is closed, and quick action emergency valve 4 is opened；It will be also
Protocercal tail gas is passed into Venturi tube 5；Tail gas is washed by cleaning solution in Venturi tube 5, then by water removal dedirt device 6
Cleaning solution after absorption tail gas is detached, isolated gas is taken away by wind turbine 9, and isolated solution is sent into heavy
Shallow lake pond 7 is to the V in solution2O3Carry out precipitation recycling.
The oxygen content in reduction tail gas is detected by online oxygen analyzer 22 in step 1), so as to judge
Go out to restore whether tail gas is readily ignited, if there are the security risks of recycling.
The output control diffusion valve 24 and quick action emergency valve 4 detected according to online oxygen analyzer 22 in step 2) is opened
It closes；
Specifically, when detecting oxygen content >=1% in reduction tail gas so that diffusion valve 23 is opened, and quick action emergency valve 4 closes
It closes；Reducing gas is diffused by desorption tube 24, and the igniting altar lamp 14 of 24 top of desorption tube is lighted；
When detecting oxygen content ＜ 1% in reduction tail gas so that diffusion valve 23 is closed, and quick action emergency valve 4 is opened；It will be also
Protocercal tail gas is passed into Venturi tube 5；Tail gas is washed by cleaning solution in Venturi tube 5, then by water removal dedirt device 6
Cleaning solution after absorption tail gas is detached, isolated gas is taken away by wind turbine 9, and isolated solution is sent into heavy
Shallow lake pond 7 is to the V in solution2O3Carry out precipitation recycling.
By the opening and closing of output control diffusion valve 24 and quick action emergency valve 4 that online oxygen analyzer 22 detects, to realize
The safe retrieving for restoring tail gas avoids recycling from being easy to light, the reduction tail gas to explode；While realizing tail gas recycle,
It ensure that the safety of tail gas recycle.
In conclusion V of the present invention2O5Reduction kiln restores solvent recovery technology from vent gas due to using above-mentioned V2O5Reduction kiln
Exhaust gas recovery system is restored, in combination with step 1 and step 2, therefore can realize that the safe retrieving of reduction tail gas utilizes, simultaneously
It can be to the V in reduction tail gas2O3Dust is recycled, and pollution of the tail gas to environment is reduced.
Embodiment
Shown in Fig. 1, V2O5Reduction kiln restores exhaust gas recovery system, including Venturi tube 5, water removal dedirt device 6, sedimentation basin 7, follows
The exhaust pipe 3 of cisterna ambiens 8, circulating pump 10 and the offgas outlet 21 having mounted on reduction kiln 2；
The exhaust pipe 3 is communicated to Venturi tube 5, on the exhaust pipe 3, from reduction kiln 2 to the side of Venturi tube 5
To being disposed with online oxygen analyzer 22, desorption tube 24, quick action emergency valve 4；It is additionally provided with first on the exhaust pipe 3
Valve 31；Diffusion valve 23 is provided on the desorption tube 24；
24 top of the desorption tube is provided with igniting altar lamp 14, and chimney 25 is provided on the igniting altar lamp 14；Institute
It states diffusion valve 23 and quick action emergency valve 4 and opening and closing is controlled by online oxygen analyzer 22.
The Venturi tube 5 has liquid inlet, gas access and liquid outlet；The liquid outlet of the Venturi tube 5 with
The entry to mixed solution 61 that water removal dedirt device 6 has is connected to, and the gas vent 63 that the water removal dedirt device 6 has is provided with wind turbine 9；
The liquid outlet 62 that the water removal dedirt device 6 has is connected to sedimentation basin 7；The sedimentation basin 7 has discharge outlet and sewage draining exit
71。
The discharge outlet that the sedimentation basin 7 has is connected to circulatory pool 8, and the circulatory pool 8 passes through circulating pump 10 and Venturi tube 5
The liquid inlet connection having.The second valve 32 is additionally provided on the exhaust pipe 3；The quick action emergency valve 4 is located at the
Between one valve 31 and the second valve 32.
V simultaneously2O5Reduction kiln reduction exhaust gas recovery system further include connecting pipe between each equipment, affiliated facility and
Automatic control system；The automatic control system main function is the working condition for controlling each equipment.
In the process of work：
V2O5After restoring 2 generation of kiln exhaust gas autoreduction kiln, first passes through online oxygen analyzer 22 and carry out Always Online" analysis, when
When restoring kiln exhaust gas oxygen content less than 1%, automatic control system sends out signal：Diffusion valve 23, opening on closing desorption tube 24
Quick action emergency valve 4, reduction tail gas enters by quick action emergency valve 4 in Venturi tube 5, through 5 aditus laryngis spray cooling of Venturi tube, dedusting
Afterwards, into cyclone dust removal dehydrator 6 carry out reduction tail gas moisture content removing and final dusting, through dehydration and final dusting also
Protocercal tail gas send to each user after the pressurization of wind turbine 9 and utilizes.The moisture content that cyclone dust removal dehydrator 6 takes off is with dust through whirlwind
The liquid outlet 62 of dedusting dehydrator 6 enters sedimentation basin 7, carries out natural sedimentation, the lower water nature overflow of upper layer dustiness
To circulatory pool 8, then it is delivered to spray cooling at 5 aditus laryngis of Venturi tube through water circulating pump 10 and uses.It is precipitated in sedimentation basin 7 and circulatory pool 8
V2O3The cycle sewage draining exit 81 of sewage draining exit 71 and circulatory pool 8 of the dust through sedimentation basin 7 recycles.Such as online oxygen analyzer 22
When on-line analysis restores kiln exhaust gas oxygen content more than 1%, automatic control system sends out signal：Quick action emergency valve 4 is closed, opening is put
Diffusion valve 23 in separate tube 24 and the shutdown of wind turbine 9 is controlled, reduction tail gas is put in 24 upper end of desorption tube through the igniting of altar lamp 14
It dissipates, does not enter back into reduction exhaust gas recovery system, to ensure recovery system safety.
Claims (5)
1.V2O5Reduction kiln restores exhaust gas recovery system, it is characterised in that：Including Venturi tube (5), water removal dedirt device (6), sedimentation basin
(7) and mounted on reduction kiln (2) exhaust pipe (3) for the offgas outlet (21) having；
The exhaust pipe (3) is communicated to Venturi tube (5)；On the exhaust pipe (3), from reduction kiln (2) to Venturi tube
(5) direction is disposed with online oxygen analyzer (22), desorption tube (24), quick action emergency valve (4)；The exhaust pipe
(3) the first valve (31) is additionally provided on；It is provided with diffusion valve (23) on the desorption tube (24)；
Described desorption tube (24) one end is connected to exhaust pipe (3), and the other end is provided with igniting altar lamp (14), described to diffuse
Valve (23) and quick action emergency valve (4) are controlled by online oxygen analyzer (22) to be opened and closed；
The Venturi tube (5) has liquid inlet, gas access and liquid outlet；The liquid outlet of the Venturi tube (5) with
Entry to mixed solution (61) connection that water removal dedirt device (6) has, gas vent (63) setting that the water removal dedirt device (6) has
There is wind turbine (9)；The liquid outlet (62) that the water removal dedirt device (6) has is connected to sedimentation basin (7)；Sedimentation basin (7) tool
There are discharge outlet and sewage draining exit (71).
2. V as described in claim 12O5Reduction kiln restores exhaust gas recovery system, it is characterised in that：Further include circulatory pool (8),
Circulating pump (10)；The discharge outlet that the sedimentation basin (7) has is connected to circulatory pool (8), and the circulatory pool (8) passes through circulating pump
(10) liquid inlet having with Venturi tube (5) is connected to, and circulatory pool (8) bottom is provided with cycle sewage draining exit (81).
3. V as described in claim 12O5Reduction kiln restores exhaust gas recovery system, it is characterised in that：The exhaust pipe (3)
On be additionally provided with the second valve (32)；The quick action emergency valve (4) is between the first valve (31) and the second valve (32).
4. V as described in claim 12O5Reduction kiln restores exhaust gas recovery system, it is characterised in that：The igniting altar lamp
(14) chimney (25) is provided on.
5.V2O5Reduction kiln restores solvent recovery technology from vent gas, which is characterized in that uses V as described in claim 12O5Reduction kiln restores
Exhaust gas recovery system, it is further comprising the steps of：
1) by online oxygen analyzer (22) to the oxygen content in the reduction tail gas of the offgas outlets (21) of reduction kiln (2) discharge into
Row detection；
2) according to the opening and closing of the output control diffusion valve (23) and quick action emergency valve (4) of online oxygen analyzer (22) detection；
When detecting oxygen content >=1% in reduction tail gas so that diffusion valve (23) is opened, and quick action emergency valve (4) is closed；Reduction
Gas is diffused by desorption tube (24), and the igniting altar lamp (14) above desorption tube (24) is lighted；
When detecting oxygen content ＜ 1% in reduction tail gas so that diffusion valve (23) is closed, and quick action emergency valve (4) is opened；It will be also
Protocercal tail gas is passed into Venturi tube (5)；Tail gas is washed by cleaning solution in Venturi tube (5), it is then de- by water removal
Dirt device (6) detaches the cleaning solution after absorbing tail gas, and isolated gas is taken away by wind turbine (9), isolated
Solution is sent into sedimentation basin (7) to the V in solution2O3Carry out precipitation recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664835.6A CN106268127B (en) | 2016-08-12 | 2016-08-12 | V2O5Reduction kiln restores exhaust gas recovery system and recovery process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664835.6A CN106268127B (en) | 2016-08-12 | 2016-08-12 | V2O5Reduction kiln restores exhaust gas recovery system and recovery process |
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| CN106268127B true CN106268127B (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610664835.6A Active CN106268127B (en) | 2016-08-12 | 2016-08-12 | V2O5Reduction kiln restores exhaust gas recovery system and recovery process |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099243A2 (en) * | 2017-11-03 | 2018-06-07 | Heraeus Precious Metal Technology (China) Co., Ltd. | Nox abatement method for precious metal refinery and recycling processes |
| CN111333111A (en) * | 2020-04-23 | 2020-06-26 | 攀钢集团钒钛资源股份有限公司 | Vanadium trioxide preparation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549861A (en) * | 2009-04-24 | 2009-10-07 | 瓮福（集团）有限责任公司 | A diammonium phosphate exhaust washing method |
| CN102580437A (en) * | 2012-02-21 | 2012-07-18 | 中冶华天工程技术有限公司 | Converter primary flue gas dual-tower purification method and converter primary flue gas purification tower |
| CN105727727A (en) * | 2016-02-25 | 2016-07-06 | 攀枝花学院 | Treating method for vanadium slag roasting tail gas |
| CN205392144U (en) * | 2016-02-25 | 2016-07-27 | 攀枝花学院 | Vanadium slag calcination vent gas treatment system in |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000288351A (en) * | 1999-04-08 | 2000-10-17 | Daido Steel Co Ltd | Apparatus for treating waste gas from electric furnace |
-
2016
- 2016-08-12 CN CN201610664835.6A patent/CN106268127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549861A (en) * | 2009-04-24 | 2009-10-07 | 瓮福（集团）有限责任公司 | A diammonium phosphate exhaust washing method |
| CN102580437A (en) * | 2012-02-21 | 2012-07-18 | 中冶华天工程技术有限公司 | Converter primary flue gas dual-tower purification method and converter primary flue gas purification tower |
| CN105727727A (en) * | 2016-02-25 | 2016-07-06 | 攀枝花学院 | Treating method for vanadium slag roasting tail gas |
| CN205392144U (en) * | 2016-02-25 | 2016-07-27 | 攀枝花学院 | Vanadium slag calcination vent gas treatment system in |
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| CN106268127A (en) | 2017-01-04 |
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