CN206152567U - Tail gas is retrieved and processing apparatus - Google Patents
Tail gas is retrieved and processing apparatus Download PDFInfo
- Publication number
- CN206152567U CN206152567U CN201621191277.8U CN201621191277U CN206152567U CN 206152567 U CN206152567 U CN 206152567U CN 201621191277 U CN201621191277 U CN 201621191277U CN 206152567 U CN206152567 U CN 206152567U
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- tail gas
- outlet
- liquid separator
- condenser
- processing meanss
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Abstract
The utility model discloses a tail gas is retrieved and processing apparatus, it includes a pretreatment cauldron, a condenser, the condenser even in the low reaches of pretreatment cauldron export, a gas liquid separator, gas liquid separator even in the low reaches of condenser export, an accumulator, the accumulator even in the low reaches of gas liquid separator's lower part export, a the tower of absorb the remnant air, the tower of absorb the remnant air even in the low reaches of gas liquid separator's upper portion export. The utility model discloses a tail gas is retrieved and processing apparatus gets into at tail gas before the the tower of absorb the remnant air, through the condenser with material condensation separation is retrieved to gas liquid separator treating in with tail gas, not only can realize the recycle of tail gas, in addition greatly reduced the tower of absorb the remnant air's work load effectively improves the rate of recovery and the handling rate of tail gas.
Description
Technical field
The utility model belongs to exhaust gas processing device technical field, and in particular to a kind of tail gas recycle and processing meanss.
Background technology
Exhaust gas processing device is particularly environmental protection equipment critically important in petrochemical industry as industrial production, and its Main Function is
Complete in equipment at the innoxious or low concentrations such as recovery, absorption, decomposition, the conversion of poisonous and harmful tail gas in technical process
Reason so as to can be with qualified discharge or recycling.The several years ago national discharge standard without epoxide, one during project environmental impact assessment
As with reference to other standards, domestic epoxide using producer typically using single absorption tower system, double absorption column system and
Absorption tower and activated carbon filter the system for combining and carry out vent gas treatment, also have a small amount of producer to use recycling equipment, such as produce
The recycle device of raw glycol water, the recycle device for producing ethanol ammonia spirit, both retracting devices are returned
Yield is not high, and generates other materials rather than epoxide itself, it is impossible to is directly recycled to main process device and uses.And
Processing system or recycling equipment are either simply absorbed, the recovery utilization rate of epoxide is not high, at tail gas
Reason rate is typically also less than 90%, still can bring certain impact to environment.Especially medical disinfecting industry, epoxide
Concentration of emission is very high, commonly reaches 1000PPm, even more high, and the epoxide rate of recovery is not high during vent gas treatment,
Substantial amounts of material waste is not only caused, and the high-concentration waste liquid after vent gas treatment is also required to further process and could discharge
To sewage treatment plant.As country is more and more stricter for the discharge standard of epoxide, traditional exhaust gas processing device is
Discharge standard is not far reached, therefore is badly in need of the high exhaust gas processing device of a kind of epoxide rate of recovery and handling rate as an alternative
Scheme.
Utility model content
Therefore, the utility model for exhaust gas processing device in prior art the epoxide rate of recovery and handling rate not
High technical problem, it is therefore intended that the high tail gas recycle of a kind of epoxide rate of recovery and handling rate and processing meanss are provided.
Tail gas recycle of the present utility model and processing meanss include：
One pre-treatment kettle, for collecting and temporarily storing tail gas；
One condenser, the condenser is connected in the downstream of pre-treatment kettle outlet, for making tail gas in thing to be recycled
Matter is condensed into liquid；
One vapour liquid separator, the vapour liquid separator is connected in the downstream of the condensator outlet, for separating tail gas in
Liquid；
One accumulator tank, the accumulator tank is connected in the downstream of the lower part outlet of the vapour liquid separator, isolates for collecting
Liquid；
One tail gas absorber, the tail gas absorber is connected in the downstream of the upper outlet of the vapour liquid separator, for most
Tail gas is processed eventually.
In a preferred embodiment of the present utility model, it also includes being located between the pre-treatment kettle and the condenser
One cooler and a clarifier, the outlet of the import of the cooler and the pre-treatment kettle, the import of the clarifier
With the outlet of the cooler.The cooler is used to be pre-adjusted the temperature of tail gas, can select dividing wall type cooler, folder
The various coolers such as shell type cooler, coil pipe type cooler.The clarifier is used to process solid in tail gas, liquid and dust
Deng impurity, and remove other lower boiling materials of part, the gauze element with porous, membrane type filter core and other porous mistakes
Filter structure.
Further, it also includes a pressure regulating pump, and the outlet of the import of the pressure regulating pump and the clarifier is described
The inlet communication of the outlet of pressure regulating pump and the condenser.The adjustable tail gas pressure of the pressure regulating pump, adjusts exhaust flow, makes tail
Material to be recycled in gas can be condensed fully, reduce condensing temperature, it is ensured that condensation efficiency.
Further, it also includes a filter, and the import of the filter goes out with the bottom of the vapour liquid separator
Mouthful connection, the inlet communication of the outlet of the filter and the accumulator tank.The filter filters fall the liquid isolated
In solid.
Again further, the upper outlet of the vapour liquid separator also with the pressure regulating pump inlet communication.With this tail gas
The pressure regulating pump can be flowed back to and be fed again into being condensed and separating treatment in the condenser and the vapour liquid separator, be filled
Divide and separate and recover the material to be recycled in tail gas, effectively improve the rate of recovery.
In a preferred embodiment of the present utility model, the accumulator tank top seal and gas vent is provided with the tail gas
The inlet communication on absorption tower, to avoid the material after liquefying from evaporateing into again in air；The recovery trench bottom is also connected with one can
Send the liquid of collection the pipeline of main process device back to, the liquid of collection is condensed product, will not produce or introduce and be new
Material, impurity content is less, can directly send back to used in main process device.
The condenser is the heat exchanger of pipe heat exchanger, plate type heat exchanger or other high heat exchange efficiencies.
Positive effect of the present utility model is：Tail gas recycle of the present utility model and processing meanss, enter in tail gas
Before entering the tail gas absorber, the material condensation to be recycled in tail gas is divided by the condenser and the vapour liquid separator
From, not only realize the recycling of tail gas, and the live load of the tail gas absorber is substantially reduced, the rate of recovery is reachable
80%～90%, total handling rate is up to more than 95%, even more than 98%.Ring by taking medical disinfecting industry as an example, in tail gas
Oxidative ethane content is very high, using tail gas recycle of the present utility model and processing meanss, by condensation oxirane itself is reclaimed, miscellaneous
Matter content is less, can be returned directly to be circulated utilization in item body process unit, can not only solve medical disinfecting enterprise
A difficult problem for vent gas treatment and wastewater treatment, while the use of this inflammable and explosive harmful influence of substantial amounts of oxirane can also be reduced,
With larger economic and social benefit.
Description of the drawings
Fig. 1 is the schematic diagram of tail gas recycle of the present utility model and processing meanss.
Specific embodiment
Tail gas recycle of the present utility model and processing meanss are made furtherly below with reference to specific embodiments and the drawings
It is bright.
Fig. 1 show the tail gas recycle and processing meanss of a preferred embodiment of the present utility model, and it includes pre-treatment kettle
1st, cooler 2, clarifier 3, pressure regulating pump 4, condenser 5, vapour liquid separator 6, filter 7, accumulator tank 8 and tail gas absorber 9.Compared with
Good, wherein cooler 2 is coil pipe type cooler, and clarifier 3 has membrane type filter core, and condenser 5 is pipe heat exchanger.
Pre-treatment kettle 1 is used to collecting and temporarily storing tail gas；The import of cooler 2 and the outlet of pre-treatment kettle 1；Only
Change the import of device 3 and the outlet of cooler 2；The import of pressure regulating pump 4 and the outlet of clarifier 3；Condenser 5 enters
Mouthful with the outlet of pressure regulating pump 4；The import of vapour liquid separator 6 and the outlet of condenser 5；The import of filter 7 and vapour
The lower part outlet connection of liquid/gas separator 6；The import of accumulator tank 8 and the outlet of filter 7, the import of tail gas absorber 9 and vapour
The upper outlet connection of liquid/gas separator 6；The upper outlet of vapour liquid separator 6 also with the inlet communication of pressure regulating pump 4；Accumulator tank 8 is close
The portion of sealing up be provided with gas vent and with the inlet communication of tail gas absorber 9, bottom is connected by pipeline with main process device.
By taking the process of epoxide tail gas recycle as an example, during work, tail gas is entered first from pre-treatment kettle 1, pre-treatment kettle 1
Play a part of to collect and temporarily store tail gas, moment tail gas can be avoided to flow into excessive and affect treatment effeciency.Tail gas then according to
It is secondary to flow through cooler 2 and clarifier 3, lowered the temperature and purified treatment, then adjusted by pressure regulating pump 4 and flow into condenser after pressure
In 5, the epoxide in tail gas liquefies afterwards to the cold；Tail gas is entered after vapour liquid separator 6, the epoxide and tail gas of liquefaction
Separate；Tail gas flows out from the upper outlet of vapour liquid separator 6, can again be back in pressure regulating pump 4 and be fed again into condenser 5
With condensed in vapour liquid separator 6 and separating treatment, the epoxide detached tail gas that fully liquefies flows into tail gas absorber 9
Being processed finally can qualified discharge.The epoxide of liquefaction is carried out from the lower part outlet inflow filter 7 of vapour liquid separator 6
Filter, filter and flowed in accumulator tank 8 after insoluble solids, the top of accumulator tank 8 is provided with gas vent, wherein the gas for volatilizing flows into tail
It is processed in aspiration tower 9, the epoxide impurity content of collection is less, used in being returned directly to main process device.
Above embodiment described tail gas recycle and processing meanss worked in the process of epoxide tail gas recycle
Journey, certainly, tail gas recycle of the present utility model and processing meanss are not limited to the recycling of epoxide tail gas, it is also possible to
In the recycling of the tail gas containing other condensable liquefied materials (including other organic solvents).
Claims (8)
1. a kind of tail gas recycle and processing meanss, it is characterised in that it includes：
One pre-treatment kettle, for collecting and temporarily storing tail gas；
One condenser, the condenser is connected in the downstream of pre-treatment kettle outlet, for making tail gas in material to be recycled it is cold
Congeal into liquid；
One vapour liquid separator, the vapour liquid separator is connected in the downstream of the condensator outlet, for separating tail gas in liquid；
One accumulator tank, the accumulator tank is connected in the downstream of the lower part outlet of the vapour liquid separator, for collecting the liquid isolated
Body；
One tail gas absorber, the tail gas absorber is connected in the downstream of the upper outlet of the vapour liquid separator, for final place
Reason tail gas.
2. tail gas recycle as claimed in claim 1 and processing meanss, it is characterised in that it is also included located at the pre-treatment kettle
A cooler and a clarifier and the condenser between, the import of the cooler connects with the outlet of the pre-treatment kettle
It is logical, the outlet of the import of the clarifier and the cooler.
3. tail gas recycle as claimed in claim 2 and processing meanss, it is characterised in that it also includes a pressure regulating pump, the tune
The outlet of the import of press pump and the clarifier, the inlet communication of the outlet of the pressure regulating pump and the condenser.
4. tail gas recycle as claimed in claim 3 and processing meanss, it is characterised in that it also includes a filter, the mistake
The import of filter is connected with the lower part outlet of the vapour liquid separator, and the outlet of the filter connects with the import of the accumulator tank
It is logical.
5. tail gas recycle as claimed in claim 4 and processing meanss, it is characterised in that the upper outlet of the vapour liquid separator
Also with the pressure regulating pump inlet communication.
6. tail gas recycle as claimed in claim 1 and processing meanss, it is characterised in that the accumulator tank top seal and be provided with
The inlet communication of gas vent and the tail gas absorber, the recovery trench bottom is also connected with one and can send the liquid of collection back to master
The pipeline of body technology device.
7. tail gas recycle as claimed in claim 1 and processing meanss, it is characterised in that the condenser be pipe heat exchanger or
Plate type heat exchanger.
8. tail gas recycle as claimed in claim 2 and processing meanss, it is characterised in that the cooler is dividing wall type cooling
Device, jacket type cooler or coil pipe type cooler；The clarifier is provided with the gauze element of porous or membrane type filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191277.8U CN206152567U (en) | 2016-11-01 | 2016-11-01 | Tail gas is retrieved and processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621191277.8U CN206152567U (en) | 2016-11-01 | 2016-11-01 | Tail gas is retrieved and processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206152567U true CN206152567U (en) | 2017-05-10 |
Family
ID=58657861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621191277.8U Active CN206152567U (en) | 2016-11-01 | 2016-11-01 | Tail gas is retrieved and processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206152567U (en) |
-
2016
- 2016-11-01 CN CN201621191277.8U patent/CN206152567U/en active Active
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