CN208512213U - Handle the environmental protecting device of propylene oxide exhaust gas - Google Patents
Handle the environmental protecting device of propylene oxide exhaust gas Download PDFInfo
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- CN208512213U CN208512213U CN201820976470.5U CN201820976470U CN208512213U CN 208512213 U CN208512213 U CN 208512213U CN 201820976470 U CN201820976470 U CN 201820976470U CN 208512213 U CN208512213 U CN 208512213U
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- saponification
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Abstract
The utility model relates to a kind of emission-control equipments, more particularly to a kind of environmental protecting device for handling propylene oxide exhaust gas, including saponification rectifying exhaust gas generator and reactor off-gas generator, saponification rectifying exhaust gas generator connects boiler after being sequentially connected saponification rectifying off-gas buffer tank and saponification rectifying exhaust gas fan by pipeline, reactor off-gas generator is by connecting caustic wash tower after pipeline successively reactor off-gas surge tank and reactor off-gas blower, the gas feed of the gas vent connection water scrubber of caustic wash tower, the gas vent of water scrubber connects activated carbon adsorber, the gas vent of activated carbon adsorber connects boiler, the condensate outlet of reactor off-gas surge tank passes through piping connection dichloropropane storage tank.The structure design of the utility model is reasonable, easy to use, is able to extend the replacement cycle of active carbon, reduces the production quantity of waste active carbon, and exhaust-gas treatment cost is saved in the secondary pollution and security risk for avoiding burning from generating.
Description
Technical field
The utility model relates to a kind of emission-control equipments, and in particular to a kind of environmental protection dress of processing propylene oxide exhaust gas
It sets.
Background technique
Currently, administering organic exhaust gas technology both at home and abroad mainly has three kinds of deep cooling, burning and absorption, wherein absorption method is main
Adsorbent material is used as using granular active carbon (GAC), absorption method, can be dense using adsorbing when carrying out VOCs treatment
The process flow of contracting-desorption and regeneration-solvent separation and recovery, and combustion method progress VOCs treatment can be using kiln, furnace etc.
Directly burning and the torch burning of equipment using the direct burning of the equipment such as kiln, furnace can use general combustion furnace or combustion
Firing, or exhaust gas is imported as fuel gas by boiler by certain waste gas treatment equipment and is burnt.But Deep Cooling Method presence is set
The problems such as standby huge, energy consumption is high, investment is big and effect is poor；Combustion method cannot not only recycle organic solvent, it is also possible to bring secondary
Pollution and security risk；Absorption method is more commonly used method, but can recycle having in exhaust gas simultaneously in purification exhaust gas
Solvent.
Organic exhaust gas in chloropharin legal system propylene oxide production process is broadly divided into two parts, and a part is containing more highly concentrated
The reactor off-gas containing chlorine such as the dichloropropane of degree, free chlorine, hydrogen chloride and chloropropyl alcohol, a part is containing micro dichloropropane
Saponification rectifying exhaust gas.And the organic exhaust gas generated in chloropharin legal system propylene oxide production process does not recycle organic solvent
Value, handles the exhaust gas according to absorption method, then can generate the waste active carbon for largely belonging to hazardous waste；According to directly burning
Method handles the exhaust gas, and understands the chlorine because of high level in reactor off-gas and can generate secondary pollution and security risk.
To sum up, either using absorption method or directly useless in combustion method processing chloropharin legal system propylene oxide production process
Gas all can bring larger impact to environment.
Utility model content
According to the above-mentioned deficiencies in the prior art, problem to be solved in the utility model is: providing a kind of structure design conjunction
Reason, it is easy to use, it is able to extend the replacement cycle of active carbon, reduces the production quantity of waste active carbon, avoids burning from generating secondary
Pollution and security risk save the environmental protecting device of the processing propylene oxide exhaust gas of exhaust-gas treatment cost.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The environmental protecting device of the processing propylene oxide exhaust gas, including saponification rectifying exhaust gas generator and reactor off-gas occur
Device, saponification rectifying exhaust gas generator connect after being sequentially connected saponification rectifying off-gas buffer tank and saponification rectifying exhaust gas fan by pipeline
Boiler is connect, reactor off-gas generator is by connecting caustic wash tower, alkali after pipeline successively reactor off-gas surge tank and reactor off-gas blower
The gas feed of the gas vent connection water scrubber of tower is washed, the gas vent of water scrubber connects activated carbon adsorber, and active carbon is inhaled
The gas vent of attached tower connects boiler, and the condensate outlet of reactor off-gas surge tank passes through piping connection dichloropropane storage tank.
The environmental protecting device of propylene oxide exhaust gas is handled before exhaust-gas treatment, can be classified for the type of exhaust gas, needle
Various types of exhaust gas is respectively processed, is not only able to extend the replacement cycle of active carbon, reduces the production quantity of waste active carbon, also
It can be avoided secondary pollution and security risk that burning generates, save exhaust-gas treatment cost, it is reasonable in design, it is easy to use,
With stronger practicability.
Further preferred, activated carbon adsorber is arranged two, and the gas feed of two activated carbon adsorbers passes through
The gas vent of the gas vent of piping connection water scrubber, two activated carbon adsorbers is all connected with boiler, improves organic exhaust gas
Treatment effeciency.
Further preferably lye spray tube is arranged in caustic wash tower top, and the import of lye spray tube connects lye delivery pipe,
Lye spray head is set on lye spray tube, and for the outlet at bottom of caustic wash tower by piping connection lime white tank, structure is simple, design
Rationally, convenient for the processing of organic exhaust gas.
Further preferably water sprayer tube is arranged in water scrubber top, and the import of water sprayer tube connects water delivery pipe, water spray
Water spray head is set on pipe, and the outlet at bottom of water scrubber connects effluent pit, and structure is simple, and design is reasonable, convenient for organic exhaust gas
Processing.
Further preferred, saponification rectifying exhaust gas generator includes gas-liquid separator, rectifying column cooler and saponification cooling
Any one or the combination of several of them of device；Reactor off-gas generator is chloropropyl alcohol reactor.
Further preferred, saponification rectifying off-gas buffer tank and saponification rectifying exhaust gas fan are at least arranged one, and are saponified
Rectifying off-gas buffer tank is equal with the saponification quantity of rectifying exhaust gas fan, can set according to production needs.
Beneficial effect possessed by the utility model is:
The environmental protecting device of processing propylene oxide exhaust gas described in the utility model is reasonable in design, easy to use, can
It is respectively processed according to the type of exhaust gas, is not only able to extend the replacement cycle of active carbon, reduces the production quantity of waste active carbon,
Exhaust-gas treatment cost is saved in the secondary pollution and security risk that burning can also be avoided to generate, and has stronger practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1, saponification rectifying exhaust gas generator；2, it is saponified rectifying off-gas buffer tank；3, it is saponified rectifying exhaust gas fan；4,
Boiler；5, activated carbon adsorber；6, water scrubber；7, effluent pit；8, caustic wash tower；9, reactor off-gas blower；10, reactor off-gas buffers
Tank；11, dichloropropane storage tank；12, reactor off-gas generator；13, lye delivery pipe；14, lye spray tube；15, lye sprays
Head；16, water sprayer tube；17, water sprayer tube；18, water spray head；19, lime white tank.
Specific embodiment
The embodiments of the present invention are described further with reference to the accompanying drawing:
As shown in Figure 1, the environmental protecting device of processing propylene oxide exhaust gas described in the utility model, including saponification rectifying exhaust gas
Generator 1 and reactor off-gas generator 12, saponification rectifying exhaust gas generator 1 are sequentially connected saponification rectifying exhaust gas by pipeline and delay
Boiler 4 is connected after rushing tank 2 and saponification rectifying exhaust gas fan 3, successively reactor off-gas buffers reactor off-gas generator 12 by pipeline
Caustic wash tower 8, the gas feed of the gas vent connection water scrubber 6 of caustic wash tower 8, washing are connected after tank 10 and reactor off-gas blower 9
The gas vent of tower 6 connects activated carbon adsorber 5, and the gas vent of activated carbon adsorber 5 connects boiler 4, the active carbon
Adsorption tower 5 is arranged two, and the gas feed of two activated carbon adsorbers 5 passes through the gas vent of piping connection water scrubber 6,
The gas vent of two activated carbon adsorbers 5 is all connected with boiler 4, and the condensate outlet of reactor off-gas surge tank 10 is connected by pipeline
Connect dichloropropane storage tank 11.
Lye spray tube 14 is arranged in 8 top of caustic wash tower, and the import of lye spray tube 14 connects lye delivery pipe 13,
Lye spray head 15 is set on lye spray tube 14, and the outlet at bottom of caustic wash tower 8 passes through piping connection lime white tank 19.
Water sprayer tube 17 is arranged in 6 top of water scrubber, and the import of water sprayer tube 17 connects water delivery pipe 16, water spray
Water spray head 18 is set on pipe 17, and the outlet at bottom of water scrubber 6 connects effluent pit 7.
Embodiment:
As shown in Figure 1, saponification rectifying off-gas buffer tank 2 and the respectively setting 3 of saponification rectifying exhaust gas fan 3, are divided into saponification essence
Evaporate off-gas buffer tank I, saponification rectifying off-gas buffer tank II and saponification rectifying off-gas buffer tank III, and saponification rectifying exhaust gas fan
I, rectifying exhaust gas fan II and saponification rectifying exhaust gas fan III are saponified.
Two gas-liquid separators and a rectifying column cooler are saponified rectifying off-gas buffer tank I by piping connection
With saponification rectifying exhaust gas fan I, two saponification coolers and an expansion can be saponified cooler and be given up by piping connection saponification rectifying
Gas surge tank II and saponification rectifying exhaust gas fan II, four rectifying column coolers are saponified rectifying off-gas buffer tank by piping connection
III gives up with saponification rectifying exhaust gas fan III, the saponification rectifying exhaust gas fan I, saponification rectifying exhaust gas fan II and saponification rectifying
Gas blower III connects boiler 4.The chloropropyl alcohol reactor passes through pipeline successively reactor off-gas surge tank 10 and reactor off-gas wind
Caustic wash tower 8, the gas feed of the gas vent connection water scrubber 6 of caustic wash tower 8, the gas vent connection of water scrubber 6 are connected after machine 9
The gas vent of activated carbon adsorber 5, activated carbon adsorber 5 connects boiler 4, and the condensate outlet of chloropropyl alcohol reactor passes through pipe
Road connects dichloropropane storage tank 11.
The working principle and use process of the utility model:
When production, water, propylene, chlorine generate chloropropyl alcohol solution through chlorohydrin action in chloropropyl alcohol reactor, raw simultaneously
It is the reactor off-gas of the chlorinated organics such as chlorine, hydrogen chloride, dichloropropane and chloropropyl alcohol at major pollutants, the reactor off-gas is first
By reactor off-gas surge tank 10, part dichloropropane is condensed out in off-gas buffer tank 10, remaining exhaust gas is gone to instead
Answer exhaust gas fan 9, by reactor off-gas blower 9 be pressurized after using caustic wash tower 8 carry out alkali cleaning, then using water scrubber 6 into
Row washing, is adsorbed finally by activated carbon adsorber 5, is delivered to after removing chlorinated organics contained in reactor off-gas
Boiler 4 is burned.
Milk of lime and chloropropyl alcohol solution generate propylene oxide, saponification column production when vacuumizing through saponification in saponification column
Saponification column vacuum exhaust gas is given birth to, major pollutants are the volatile organic matters such as propylene oxide in saponification column vacuum exhaust gas；In epoxy third
In alkane subtractive process, the top of the distillation column generates rectifying tower vacuum exhaust gas, gas-liquid separator generates vacuum tail gas, and rectifying tower vacuum is useless
The major pollutants of gas and vacuum tail gas are the volatile organic matters such as propylene oxide, the volatile organic matters such as propylene oxide and saponification
Tower vacuum exhaust gas forms saponification rectifying exhaust gas after merging, saponification rectifying exhaust gas goes to saponification after being saponified rectifying off-gas buffer tank 2
Rectifying exhaust gas fan 3 is pressurized, and boiler 4 is delivered to after pressurization and is burned.
The utility model is able to extend the replacement cycle of active carbon, reduces the production quantity of waste active carbon, and burning is avoided to generate
Secondary pollution and security risk, save exhaust-gas treatment cost, structure is simple, design rationally, it is easy to use, have stronger reality
The property used.
The utility model is not limited in above-mentioned specific embodiment, and those of ordinary skill in the art are in the utility model
The variations, modifications, additions or substitutions made in essential scope, should also belong to the protection scope of the utility model.
Claims (6)
1. a kind of environmental protecting device for handling propylene oxide exhaust gas, including saponification rectifying exhaust gas generator (1) and reactor off-gas occur
Device (12), it is characterised in that: saponification rectifying exhaust gas generator (1) is sequentially connected saponification rectifying off-gas buffer tank (2) by pipeline
Boiler (4) are connected afterwards with saponification rectifying exhaust gas fan (3), successively reactor off-gas buffers reactor off-gas generator (12) by pipeline
Tank (10) and reactor off-gas blower (9) connect caustic wash tower (8), the gas of gas vent connection water scrubber (6) of caustic wash tower (8) afterwards
The gas vent of import, water scrubber (6) connects activated carbon adsorber (5), and the gas vent of activated carbon adsorber (5) connects boiler
(4), the condensate outlet of reactor off-gas surge tank (10) passes through piping connection dichloropropane storage tank (11).
2. the environmental protecting device of processing propylene oxide exhaust gas according to claim 1, it is characterised in that: the active carbon is inhaled
Attached tower (5) is arranged two, and the gas feed of two activated carbon adsorbers (5) passes through the gas of piping connection water scrubber (6)
Outlet, the gas vent of two activated carbon adsorbers (5) are all connected with boiler (4).
3. the environmental protecting device of processing propylene oxide exhaust gas according to claim 1, it is characterised in that: the caustic wash tower
(8) import of top setting lye spray tube (14), lye spray tube (14) connects lye delivery pipe (13), lye spray tube
(14) lye spray head (15) are set on, the outlet at bottom of caustic wash tower (8) passes through piping connection lime white tank (19).
4. the environmental protecting device of processing propylene oxide exhaust gas according to claim 1, it is characterised in that: the water scrubber
(6) import of top setting water sprayer tube (17), water sprayer tube (17) connects water delivery pipe (16), and water sprayer tube is arranged on (17)
The outlet at bottom of water spray head (18), water scrubber (6) connects effluent pit (7).
5. the environmental protecting device of processing propylene oxide exhaust gas according to claim 1, it is characterised in that: the saponification rectifying
Exhaust gas generator (1) includes gas-liquid separator, rectifying column cooler and any one or the combination of several of them for being saponified cooler；Instead
Answering exhaust gas generator (12) is chloropropyl alcohol reactor.
6. the environmental protecting device of processing propylene oxide exhaust gas according to claim 1, it is characterised in that: the saponification rectifying
Off-gas buffer tank (2) and saponification rectifying exhaust gas fan (3) are at least arranged one, and are saponified rectifying off-gas buffer tank (2) and are saponified
The quantity of rectifying exhaust gas fan (3) is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820976470.5U CN208512213U (en) | 2018-06-22 | 2018-06-22 | Handle the environmental protecting device of propylene oxide exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820976470.5U CN208512213U (en) | 2018-06-22 | 2018-06-22 | Handle the environmental protecting device of propylene oxide exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208512213U true CN208512213U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820976470.5U Active CN208512213U (en) | 2018-06-22 | 2018-06-22 | Handle the environmental protecting device of propylene oxide exhaust gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149360A (en) * | 2021-04-28 | 2021-07-23 | 安徽金轩科技有限公司 | Three-waste treatment unit of galaxolide production process |
-
2018
- 2018-06-22 CN CN201820976470.5U patent/CN208512213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149360A (en) * | 2021-04-28 | 2021-07-23 | 安徽金轩科技有限公司 | Three-waste treatment unit of galaxolide production process |
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