CN105953239A - Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater - Google Patents
Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater Download PDFInfo
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- CN105953239A CN105953239A CN201610322526.0A CN201610322526A CN105953239A CN 105953239 A CN105953239 A CN 105953239A CN 201610322526 A CN201610322526 A CN 201610322526A CN 105953239 A CN105953239 A CN 105953239A
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- Prior art keywords
- incinerator
- chilling
- vaporizer
- connects
- tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/101—Waste liquor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
Abstract
The invention provides a stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater. The stripping, evaporating, reducing, burning and quenching device comprises a wastewater neutralizating and concentrating system, a burning system, a fume quenching system and a fume dedusting system. The stripping, evaporating, reducing, burning and quenching method comprises the steps that wastewater containing acrylic acid is fed into a stripping tower to strip out organic light components and then is fed into evaporators to be concentrated, the concentrated wastewater is fed into a burner to be subjected to innocent treatment, and generated fume is washed by a Venturi dust collector and then discharged to the atmosphere. Stripping, concentrating, and finally, removal of organic components of wastewater are realized to guarantee that the discharge of three wastes can meet the requirements of the national environmental protection standards, so that energy waste caused by the reason that lots of fuels are consumed by adoption of a direct burning method is effectively avoided, and therefore, the stripping, evaporating, reducing, burning and quenching method for acrylic acid wastewater is an extremely economical treatment method.
Description
Technical field
The invention belongs to Minimisation of Industrial Wastewater, innoxious process for treating, specially acroleic acid device produce
During produce acrylic acid and acrylate organic wastewater stripping evaporation minimizing burn quenching side
Method and device.
Background technology
Acrylic acid industry production process produces substantial amounts of organic wastewater, and the water content in waste water is the highest,
The current domestic direct burning method of main employing carries out high temperature incineration to waste water, is decomposed by the Organic substance in waste water.
This kind processes technique need to consume substantial amounts of fuel, and the energy causes greatly waste, be one extremely without
The processing method of Ji.
Summary of the invention
Quenching apparatus is burned in the stripping evaporation minimizing that it is an object of the invention to provide a kind of acrylic acid wastewater
And method, it, by stripping after Waste water concentrating decrement with evaporation mode, is sent into and can ensure that acrylic acid produces
Useless Organic substance in water exhaustive oxidation decomposes, and can reclaim heat from flue gas simultaneously.
Realize the technical scheme of the object of the invention: the stripping evaporation minimizing of a kind of acrylic acid wastewater is burned anxious
Device for cooling, this device includes in waste water and concentration systems, CIU, flue gas chilling system, flue gas remove
Dirt system；
Described waste water includes the waste water neutralizing tank collecting acrylic ester wastewater with concentration systems, in waste water
Wastewater outlet with tank connects the entrance of composite waste feed pump, and composite waste charging delivery side of pump connects 1#
Stripper centre entrance；The upper gas outlet of 1# stripper connects entering of the incinerator of described CIU
Mouthful, the bottom wastewater outlet of 1# stripper connects 1# and strips delivery pump entrance, 1# stripping conveying delivery side of pump
Connecting 1# evaporator inlet, the outlet of 1# vaporizer connects 2# evaporator inlet, 1# vaporizer and 2# and steams
Send out device and constitute dual-effect concentrator；The upper steam outlet of 2# vaporizer connects condenser, and condenser connects
Condensate drum；The lower part outlet of condensate drum connects the entrance of evaporator condensation liquid pump, evaporator condensation liquid
Delivery side of pump connects the entrance of 2# stripper；The bottom wastewater outlet of 2# stripper connects the conveying of 2# stripper
The entrance of pump, 2# stripper conveying delivery side of pump connects the venturi scrubber of described flue gas dust collecting system；
The bottom wastewater outlet of 2# vaporizer connects the entrance of waste water supercharging pump, and waste water supercharging delivery side of pump connects institute
State the incinerator entrance of CIU；
Described CIU includes incinerator, is provided with natural gas and heavy constituent burner at incinerator top,
Natural gas and heavy constituent burner inlet connect combustion fan；Incinerator bottom connects described flue gas chilling system
The chilling tank of system；
Described flue gas chilling system includes that chilling tank, the outlet of chilling tank connect water sealed tank entrance, water sealed tank
Outlet connect chilling tank saline solution delivery pump；
Described flue gas dust collecting system includes venturi scrubber, the outlet connector literary composition mound of venturi scrubber
In cleaning mixture pump intake, Venturi scrubbing liquid pump outlet connect chilling tank entrance be chilling tank moisturizing, industry
It is chilling tank moisturizing that water also connects chilling tank entrance；The exhanst gas outlet of venturi scrubber connects chimney；
Heavy component tank connects heavy component feed pump entrance, and the outlet of heavy component feed pump connects incinerator top
Natural gas and heavy constituent burner.
Quenching apparatus is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above, and it is described
1# vaporizer and 2# vaporizer constitute dual-effect concentrator, wherein add hot fluid and heated fluid uses inverse
Stream mode.
Quenching apparatus is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above, and it is described
In condenser, uncooled gas utilizes vacuum pump to extract out and enters aerator air inlet bypass with combustion air entrance
Incinerator burns.
Quick cooling method, the method are burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater of the present invention
Comprise the steps:
A acrylic ester wastewater that () process units is discharged collects in waste water neutralizing tank, is neutralized decomposition；
Waste water after decomposition strips by delivering to 1# stripper, and stripping Light ends organic facies and steam are by tower top
Exiting into incinerator to burn, the waste water after removal Light ends is sequentially sent to 1# vaporizer and 2# vaporizer enters
Row evaporation and concentration, the waste water through concentrating enters incinerator and burns；
B () enters condenser through circulating water, the condensed fluid of formation from 2# vaporizer steam out
It is stored in condensate drum；With evaporator condensation liquid pump, condensed fluid is delivered to 2# stripper distill again；
Exited into incinerator through the light component organic facies of stripping and steam by tower top in 2# stripper to burn；Remove light
Waste water after component delivers to venturi scrubber as moisturizing through 2# stripper delivery pump；
C combustion air is added by () natural gas and heavy constituent burner arrangement at incinerator top, combustion fan
Force feed is combustion-supporting in entering incinerator；The stripping Light ends organic facies of 1# stripper and steam are exited into by tower top
Incinerator burns, and in 2# vaporizer, the waste water entrance incinerator through concentrating burns；After burning in incinerator
High-temperature flue gas enter the chilling tank of incinerator bottom and carry out the nothing of heat and mass, high-temperature flue gas and molten state
The cooling of machine salt and dissolving, flue-gas temperature is cooled in less than 100 DEG C, and the inorganic salt of molten state is dissolved in chilling
In tank water；
D saturated flue gas that () is discharged from chilling tank sends into venturi scrubber, dedusting in venturi scrubber
Waste water through Venturi scrubbing liquid pump and industry water, chilling tank is carried out moisturizing, the waste water in chilling tank
After inorganic salt concentration reaches 5～15%, exported by chilling tank saline solution delivery pump；Venturi scrubber warp
Flue gas after dedusting passes through chimney high altitude discharge.
Quick cooling method, its step (a) are burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above
The acrylic ester wastewater discharged by process units collects in waste water neutralizing tank, and this waste water is through steam-coil-heater
Occur to neutralize decomposition reaction to 80～95 DEG C with the caustic soda added and generate sodium salt and alcohol, the waste water after decomposition
It is sent to 1# stripper hypomere packing section through composite waste feed pump strip；Acrylic ester wastewater is entered
Enter in the middle part of 1# stripper, through stripping light component organic facies and steam, tower top exit into incinerator and burn；
Additionally one acrylic acid wastewater enters 1# stripper top, through stripping light component organic facies and steam, by tower
Top exits into incinerator and burns.
Quick cooling method, its step (a) are burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above
At the bottom of described 1# stripper tower, waste water 1# stripping delivery pump is sent to 1# vaporizer, the liquid phase after evaporation
Entering 2# vaporizer, 1# vaporizer and 2# vaporizer constitute dual-effect concentrator, wherein add hot fluid and quilt
Add hot fluid and use reflux type.The evaporating pressure controlling 1# vaporizer is
The evaporating pressure of 0.0263MPaA～0.0316MPa, 2# vaporizer is 0.0118MPaA～0.0171MPaA.
Quick cooling method is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above, and it is from battery limit (BL)
External waste gas TVG enters incinerator and burns；Heavy component A and B external from battery limit (BL) is stored in restructuring
In part tank, burn in being sent into incinerator by heavy component feed pump supercharging.
Quick cooling method, its incinerator are burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater as above
Internal temperature is 950～1050 DEG C, and under the conditions of malleation peroxide, Organic substance fully carries out oxidation Decomposition；
High-temperature flue gas enters the chilling tank of incinerator bottom and carries out the inorganic of heat and mass, high-temperature flue gas and molten state
Salt cools down in a short period of time and dissolves；High-temperature flue gas becomes saturated flue gas, and flue-gas temperature cools down
To 90～95 DEG C.
Effect of the invention is that:
The present invention relates in a kind of acrylic acid production process produce containing acrylic acid, acetic acid, butyl acrylate,
The organic wastewater New Method for Processing such as benzene, the method will contain acrylic acid waste water and send into stripper, be stripped off
Concentrate in sending into steamer after organic Light ends.Waste water after concentration carries out innoxious in being admitted to incinerator
Processing, the flue gas of generation enters air after venturi scrubber washs.The present invention realizes the vapour to waste water
Carry, concentrate and the removing of final organic components is to ensure that three waste discharge disclosure satisfy that wanting of national environmental standard
Ask, efficiently solve the direct burning method of employing and consume a large amount of fuel, the energy waste caused, be a kind of pole
The processing method of its economy.
Acrylic acid organic wastewater of the present invention through stripping and evaporation and concentration after, the wastewater flow rate of actual burning disposal
For the 40% of raw wastewater amount, the fuel quantity consumed is minimizing 60% compared with direct burning method, more economical
Property and practicality.The present invention, to environmental improvement, makees especially in acrylic acid industry organic exhaust gas liquid waste processing
Having gone out major contribution, system operates steadily, easy and simple to handle, safety, solves the China of restriction always propylene
The difficult problem of environmental protection of acid industry development, it is achieved " innoxious " of environment protection treating.
Accompanying drawing explanation
Fig. 1 is that the stripping evaporation minimizing burning quenching apparatus of a kind of acrylic acid wastewater of the present invention shows
It is intended to.
In figure: 1. acrylic ester wastewater；2. waste water surge tank；3. mixed waste liquor feed pump；4. acrylic acid waste
Water；5.1# stripper；6.1# strips delivery pump；7.1# vaporizer；8.2# vaporizer；9. condenser；10.
Water on recirculated water；11. vadose waters；12. condensate drums；13. evaporator condensation liquid pumps；14. vacuum
Pump；15. waste water supercharging pumps；16.2# stripper；17.2# stripping delivery pump；18. heavy component A；19. weights
Component B；20. heavy component tanks；21. heavy component feed pumps；22. waste gas；23. industry waters；24 is natural
Gas；25. air；26. combustion fans；27. burners；28. incinerators；29. chilling tanks；30. water
Sealed cans；31. chilling tank saline solution delivery pumps；32.5% sodium carbonate liquor；33. venturi scrubbers；34. literary compositions
Washing pump in mound；35. chimneys.
Detailed description of the invention
Stripping to a kind of acrylic acid wastewater of the present invention evaporates minimizing burning suddenly below in conjunction with the accompanying drawings
Device for cooling and method are further described.
Embodiment 1
As it is shown in figure 1, chilling is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater of the present invention
Device, it includes in waste water and concentration systems, CIU, flue gas chilling system, flue gas dust collecting system.
Described waste water includes the waste water neutralizing tank 2 collecting acrylic ester wastewater, waste water with concentration systems
The wastewater outlet of neutralizing tank 2 connects the entrance of composite waste feed pump 3, going out of composite waste feed pump 3
Mouth connects 1# stripper 5 centre entrance.
The upper gas outlet of 1# stripper 5 connects the entrance of the incinerator 28 of described CIU, 1#
The bottom wastewater outlet of stripper 5 connects 1# and strips delivery pump 6 entrance, the outlet of 1# stripping delivery pump 6
Connecting 1# vaporizer 7 entrance, the outlet of 1# vaporizer 7 connects 2# vaporizer 8 entrance, 1# vaporizer 7
Dual-effect concentrator is constituted with 2# vaporizer 8；Wherein add hot fluid and heated fluid uses reflux type.
The upper steam outlet of 2# vaporizer connects condenser 9, and condenser 9 connects condensate drum 12；Cold
The lower part outlet of lime set tank 12 connects the entrance of evaporator condensation liquid pump 13, evaporator condensation liquid pump 13
Outlet connects the entrance of 2# stripper 16；It is defeated that the bottom wastewater outlet of 2# stripper 16 connects 2# stripper
Sending the entrance of pump 17, the outlet of 2# stripper delivery pump 17 connects the venturi of described flue gas dust collecting system
Cleaner unit 33；In described condenser 9, uncooled gas utilizes vacuum pump 14 to extract out and enters aerator
Air inlet bypass enters incinerator with combustion air and burns.
The bottom wastewater outlet of 2# vaporizer connects the entrance of waste water supercharging pump 15, waste water supercharging pump 15
Outlet connects incinerator 28 entrance of described CIU.
Described CIU includes incinerator 28, is provided with natural gas 24 and restructuring at incinerator 28 top
Divided combustion device 27, natural gas and heavy constituent burner 27 entrance connect combustion fan 26；Incinerator 28 times
Portion connects the chilling tank 29 of described flue gas chilling system.
Described flue gas chilling system includes that chilling tank 29, chilling tank 29 outlet connect water sealed tank 30 entrance,
The outlet of water sealed tank 30 connects chilling tank saline solution delivery pump 31.
Described flue gas dust collecting system includes venturi scrubber 33, and the outlet of venturi scrubber 33 connects
Part Venturi scrubbing liquid pump 34 entrance, Venturi scrubbing liquid pump 34 outlet connects chilling tank 29 entrance and is
Chilling tank moisturizing, it is chilling tank moisturizing that industry water 23 also connects chilling tank 29 entrance；Venturi scrubber
The exhanst gas outlet of 33 connects chimney 35.
Heavy component tank 20 connects heavy component feed pump 21 entrance, and heavy component feed pump 21 outlet connects burns
The natural gas at stove 28 top and heavy constituent burner 27.
Embodiment 2
As it is shown in figure 1, chilling is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater of the present invention
Method, it comprises the steps:
A acrylic ester wastewater 1 that () process units is discharged collects in waste water neutralizing tank 2, is neutralized point
Solve；Waste water after decomposition strips by delivering to 1# stripper 5, stripping Light ends organic facies and steam
Exited into incinerator 28 by tower top to burn, remove the waste water after Light ends and be sequentially sent to 1# vaporizer 7
Being evaporated concentrating with 2# vaporizer 8, the waste water through concentrating enters incinerator 28 and burns；
B () enters condenser 9 through circulating water from 2# vaporizer 8 steam out, formation cold
Lime set is stored in condensate drum 12；With evaporator condensation liquid pump 13, condensed fluid is delivered to 2# stripper
16 distill again；Exit into by tower top through the light component organic facies of stripping and steam in 2# stripper 16
Incinerator 28 burns；Remove the waste water after light component to deliver to venturi through 2# stripper delivery pump 17 and remove
Dirt device 33 is as moisturizing；
C () natural gas and heavy constituent burner 27 are arranged in incinerator top, combustion fan 26 is by combustion-supporting
Air 25 pressurization is combustion-supporting in sending into incinerator；The stripping Light ends organic facies of 1# stripper 5 and steam are by tower
Top exits into incinerator 28 and burns, and in 2# vaporizer 8, the waste water entrance incinerator 28 through concentrating burns
Burn；High-temperature flue gas after burning in incinerator 28 enters the chilling tank 29 of incinerator bottom and carries out heat transfer biography
The inorganic salt cooling of matter, high-temperature flue gas and molten state and dissolving, flue-gas temperature is cooled in less than 100 DEG C,
The inorganic salt of molten state is dissolved in chilling tank 29 water；
D saturated flue gas that () is discharged from chilling tank 29 sends into venturi scrubber 33, venturi scrubber
In 33, the waste water of dedusting carries out moisturizing through Venturi scrubbing liquid pump 34 and industry water 23 to chilling tank 29,
Waste water in chilling tank 29 is after inorganic salt concentration reaches 5～15%, by chilling tank saline solution delivery pump
31 outputs；Flue gas after venturi scrubber 33 removing dust passes through chimney high altitude discharge.
Embodiment 3
As it is shown in figure 1, chilling is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater of the present invention
Method, it comprises the steps:
A acrylic ester wastewater 1 that () is discharged by process units collects in waste water neutralizing tank 2, this waste water warp
Steam-coil-heater to 90 DEG C and the caustic soda added occur to neutralize decomposition reaction and generate sodium salt and alcohol, decompose
After waste water be sent to 1# stripper 5 hypomere packing section through composite waste feed pump 3 and strip；Third
Olefin(e) acid ester waste water enters in the middle part of 1# stripper 7, through stripping light component organic facies and steam, tower top flows out
Enter incinerator 28 to burn；Additionally one acrylic acid wastewater 4 enters 1# stripper 5 top, through stripping
Light component organic facies and steam, exited into incinerator 28 by tower top and burn.
At the bottom of described 1# stripper 5 tower, waste water 1# stripping delivery pump 6 is sent to 1# vaporizer 7, evaporation
After liquid phase enter 2# vaporizer 8,1# vaporizer 7 and 2# vaporizer 8 constitutes dual-effect concentrator, its
In add hot fluid and heated fluid and use reflux type.The evaporating pressure controlling 1# vaporizer 7 is
0.0263MPaA～0.0316MPaA, the evaporating pressure controlling 2# vaporizer 8 is
0.0118MPaA～0.0171MPaA.
B () enters condenser 9 through circulating water from 2# vaporizer 8 steam out, formation cold
Lime set is stored in condensate drum 12；With evaporator condensation liquid pump 13, condensed fluid is delivered to 2# stripper
16 distill again；Exit into by tower top through the light component organic facies of stripping and steam in 2# stripper 16
Incinerator 28 burns；Remove the waste water after light component to deliver to venturi through 2# stripper delivery pump 17 and remove
Dirt device 33 is as moisturizing；
C () natural gas and heavy constituent burner 27 are arranged in incinerator top, combustion fan 26 is by combustion-supporting
Air 25 pressurization is combustion-supporting in sending into incinerator；The stripping Light ends organic facies of 1# stripper 5 and steam are by tower
Top exits into incinerator 28 and burns, and in 2# vaporizer 8, the waste water entrance incinerator 28 through concentrating burns
Burn；High-temperature flue gas after burning in incinerator 28 enters the chilling tank 29 of incinerator bottom and carries out heat transfer biography
The inorganic salt cooling of matter, high-temperature flue gas and molten state and dissolving, flue-gas temperature is cooled in less than 100 DEG C,
The inorganic salt of molten state is dissolved in chilling tank 29 water；
D saturated flue gas that () is discharged from chilling tank 29 sends into venturi scrubber 33, venturi scrubber
In 33, the waste water of dedusting carries out moisturizing through Venturi scrubbing liquid pump 34 and industry water 23 to chilling tank 29,
Waste water in chilling tank 29 is after inorganic salt concentration reaches 10%, by chilling tank saline solution delivery pump 31
Output；Flue gas after venturi scrubber 33 removing dust passes through chimney high altitude discharge.
The waste gas TVG (waste gas that acrylic acid industry production process produces) external from battery limit (BL) enters and burns
Stove burns；Heavy component A and B18 external from battery limit (BL), 19 (acrylic acid industry production process produces
Hydrocarbon oxygen mixture heavy component) it is stored in heavy component tank 20, sent into by heavy component feed pump 21 supercharging
Burning in incinerator 28.
Temperature within incinerator is 950～1050 DEG C (such as: 950 DEG C), under the conditions of malleation peroxide,
Organic substance fully carries out oxidation Decomposition；The chilling tank 29 of 950 DEG C of high-temperature flue gas entrance incinerator bottoms is carried out
The inorganic salt of heat and mass, high-temperature flue gas and molten state cools down in a short period of time and dissolves；High
Temperature flue gas becomes saturated flue gas, and flue-gas temperature is cooled to 93 DEG C.
Organic components in waste water is stripped separation by stripper plant by the present invention, will be contained by vaporising device
Salt Waste water concentrating decrement, sends into the organic exhaust gas after stripping and the brine waste after concentration and burns chilling dress
Put and process, it is achieved the environment protection standard discharge of waste water and waste gas.Meanwhile, through stripping and evaporation and concentration
After, the wastewater flow rate of actual burning disposal is the 40% of raw wastewater amount, the fuel quantity consumed and directly burning
Method compares minimizing 60%, more economy and practicality.Waste water produces after high temperature incineration in incinerator
Saliferous flue gas realizes the separation and recovery of salt by cooling mode, and the temperature within incinerator is 950～1050 DEG C,
High-temperature flue gas becomes saturated flue gas, and flue-gas temperature is cooled to 90～95 DEG C.For ensureing flue gas qualified discharge,
Flue gas discharges by after venturi scrubber dedusting.
Claims (9)
1. quenching apparatus is burned in the stripping evaporation minimizing of an acrylic acid wastewater, it is characterised in that: this dress
Put and include in waste water and concentration systems, CIU, flue gas chilling system, flue gas dust collecting system；
Described waste water includes the waste water neutralizing tank (2) collecting acrylic ester wastewater with concentration systems, useless
The wastewater outlet of water neutralizing tank (2) connects the entrance of composite waste feed pump (3), and composite waste feeds
The outlet of pump (3) connects 1# stripper (5) centre entrance；
The upper gas outlet of 1# stripper (5) connects the entrance of the incinerator (28) of described CIU,
The bottom wastewater outlet of 1# stripper (5) connects 1# and strips delivery pump (6) entrance, and 1# strips delivery pump
(6) outlet connects 1# vaporizer (7) entrance, and the outlet of 1# vaporizer (7) connects 2# vaporizer
(8) entrance, 1# vaporizer (7) and 2# vaporizer (8) constitute dual-effect concentrator；
The upper steam outlet of 2# vaporizer connects condenser (9), and condenser (9) connects condensate drum (12)；
The lower part outlet of condensate drum (12) connects the entrance of evaporator condensation liquid pump (13), evaporator condensation
The outlet of liquid pump (13) connects the entrance of 2# stripper (16)；The bottom waste water of 2# stripper (16)
Outlet connects the entrance of 2# stripper delivery pump (17), and the outlet of 2# stripper delivery pump (17) connects
The venturi scrubber (33) of described flue gas dust collecting system；
The bottom wastewater outlet of 2# vaporizer connects the entrance of waste water supercharging pump (15), waste water supercharging pump (15)
Outlet connect described CIU incinerator (28) entrance；
Described CIU includes incinerator (28), is provided with natural gas (24) at incinerator (28) top
Combustion fan (26) is connected with heavy constituent burner (27), natural gas and heavy constituent burner (27) entrance；
Incinerator (28) bottom connects the chilling tank (29) of described flue gas chilling system；
Described flue gas chilling system includes that chilling tank (29), chilling tank (29) outlet connect water sealed tank (30)
Entrance, the outlet of water sealed tank (30) connects chilling tank saline solution delivery pump (31)；
Described flue gas dust collecting system includes venturi scrubber (33), the outlet of venturi scrubber (33)
Connector Venturi scrubbing liquid pump (34) entrance, Venturi scrubbing liquid pump (34) outlet connects chilling tank
(29) entrance is chilling tank moisturizing, and it is chilling tank that industry water (23) also connects chilling tank (29) entrance
Moisturizing；The exhanst gas outlet of venturi scrubber (33) connects chimney (35)；
Heavy component tank (20) connects heavy component feed pump (21) entrance, and heavy component feed pump (21) goes out
The natural gas at mouth connection incinerator (28) top and heavy constituent burner (27).
Chilling dress is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 1
Put, it is characterised in that: described 1# vaporizer (7) and 2# vaporizer (8) constitute dual-effect concentrator,
Wherein add hot fluid and heated fluid uses reflux type.
Chilling dress is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 1
Put, it is characterised in that: in described condenser (9), uncooled gas utilizes vacuum pump (14) to extract out
Enter aerator air inlet bypass and enter incinerator burning with combustion air.
4. quick cooling method is burned in the stripping evaporation minimizing of an acrylic acid wastewater, it is characterised in that: the party
Method comprises the steps:
A acrylic ester wastewater (1) that () process units is discharged collects in waste water neutralizing tank (2), carries out
Neutralize and decompose；Waste water after decomposition strips by delivering to 1# stripper (5), and stripping Light ends has
Machine phase and steam are exited into incinerator (28) by tower top and burn, and remove the waste water after Light ends and send successively
Entering 1# vaporizer (7) and 2# vaporizer (8) is evaporated concentrating, the waste water through concentrating enters and burns
Stove (28) burns；
B () enters condenser (9) through circulating water, shape from 2# vaporizer (8) steam out
The condensed fluid become is stored in condensate drum (12)；With evaporator condensation liquid pump (13), condensed fluid is defeated
Deliver to 2# stripper (16) distill again；In 2# stripper (16) through strip light component organic facies and
Steam is exited into incinerator (28) by tower top and burns；Remove the waste water after light component through 2# stripper
Delivery pump (17) delivers to venturi scrubber (33) as moisturizing；
C () natural gas and heavy constituent burner (27) are arranged in incinerator top, combustion fan (26)
By combustion-supporting in combustion air (25) pressurization feeding incinerator；The stripping Light ends of 1# stripper (5) is organic
Exited into incinerator (28) by tower top burn with steam mutually, useless through concentrate in 2# vaporizer (8)
Water enters incinerator (28) and burns；High-temperature flue gas after burning in incinerator (28) enters under incinerator
The chilling tank (29) in portion carries out the inorganic salt cooling of heat and mass, high-temperature flue gas and molten state and dissolves,
Flue-gas temperature is cooled in less than 100 DEG C, and the inorganic salt of molten state is dissolved in chilling tank (29) water；
D saturated flue gas that () is discharged from chilling tank (29) sends into venturi scrubber (33), venturi
The waste water of cleaner unit (33) interior dedusting through Venturi scrubbing liquid pump (34) and industry water (23) to urgency
Cold tank (29) carries out moisturizing, the waste water in chilling tank (29) after inorganic salt concentration reaches 5～15%,
Exported by chilling tank saline solution delivery pump (31)；Flue gas after venturi scrubber (33) removing dust leads to
Cross chimney high altitude discharge.
Chilling side is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 4
Method, it is characterised in that: the acrylic ester wastewater (1) that step (a) is discharged by process units collects in useless
Water neutralizing tank (2), this waste water neutralizes with the caustic soda added through steam-coil-heater to 80～95 DEG C
Decomposition reaction generates sodium salt and alcohol, and the waste water after decomposition is sent to 1# through composite waste feed pump (3)
Stripper (5) hypomere packing section strips；Acrylic ester wastewater enters 1# stripper (7) middle part,
Through stripping light component organic facies and steam, tower top exit into incinerator (28) and burn；Additionally one
Acrylic acid wastewater (4) enters 1# stripper (5) top, through stripping light component organic facies and steam, by
Tower top exits into incinerator (28) and burns.
Chilling side is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 4
Method, it is characterised in that: waste water 1# at the bottom of 1# stripper (5) tower described in step (a) strips delivery pump
(6) being sent to 1# vaporizer (7), the liquid phase after evaporation enters 2# vaporizer (8), 1# vaporizer (7)
Constitute dual-effect concentrator with 2# vaporizer (8), wherein add hot fluid and heated fluid uses adverse current
Mode.
Chilling side is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 6
Method, it is characterised in that: the evaporating pressure controlling 1# vaporizer (7) is 0.0263MPaA～0.0316MPaA,
The evaporating pressure of 2# vaporizer (8) is 0.0118MPaA～0.0171MPaA.
Chilling side is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 4
Method, it is characterised in that: the waste gas TVG external from battery limit (BL) enters incinerator and burns；The weight external from battery limit (BL)
Component A and B (18,19) is stored in heavy component tank (20), is increased by heavy component feed pump (21)
Force feed enters burning in incinerator (28).
Chilling side is burned in the stripping evaporation minimizing of a kind of acrylic acid wastewater the most according to claim 5
Method, it is characterised in that: the temperature within incinerator is 950～1050 DEG C, under the conditions of malleation peroxide, has
Machine thing fully carries out oxidation Decomposition；High-temperature flue gas enters the chilling tank (29) of incinerator bottom and conducts heat
The inorganic salt of mass transfer, high-temperature flue gas and molten state cools down in a short period of time and dissolves；High temperature cigarette
Gas becomes saturated flue gas, and flue-gas temperature is cooled to 90～95 DEG C.
Priority Applications (1)
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| CN201610322526.0A CN105953239A (en) | 2016-05-16 | 2016-05-16 | Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater |
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|---|---|---|---|
| CN201610322526.0A CN105953239A (en) | 2016-05-16 | 2016-05-16 | Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater |
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ID=56912613
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| CN201610322526.0A Pending CN105953239A (en) | 2016-05-16 | 2016-05-16 | Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater |
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Effective date of registration: 20170204 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant before: Beijing Inst. of Aerospace Dynamics |
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Application publication date: 20160921 |