CN108793291A - Stripper waste liquid three-stage distillation recovery system - Google Patents
Stripper waste liquid three-stage distillation recovery system Download PDFInfo
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- CN108793291A CN108793291A CN201810532621.2A CN201810532621A CN108793291A CN 108793291 A CN108793291 A CN 108793291A CN 201810532621 A CN201810532621 A CN 201810532621A CN 108793291 A CN108793291 A CN 108793291A
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- waste liquid
- recovery system
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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
- 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
- C02F1/048—Purification of waste water by evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
- B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/12—Molecular distillation
-
- 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
- C02F1/043—Details
-
- 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
- C02F1/08—Thin film evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses stripper waste liquid three-stage distillation recovery system, including head tank, level-one evaporator, secondary evaporimeter and three-level evaporator, level-one evaporator uses thin film evaporator, and secondary evaporimeter and three-level evaporator are all made of short-distance distiller；The stripper waste liquid stored in head tank enters level-one evaporator by feeding pipe, enters secondary evaporimeter by level-one pipeline after pans I is temporary by top discharge, heavies liquid through the light-component gas of level-one evaporator evaporation；Enter after the light component condensation of secondary evaporimeter evaporation after pans IV is kept in and three-level evaporator is entered by two level pipeline；Enter after the light component condensation of three-level evaporator evaporation after pans VI is kept in and products pot storage is entered by marker pipe.Three-stage distillation recovery system provided by the invention can regenerate the organic solvent in stripper waste liquid, be conducive to repeated recycling utilize, economize on resources, and device has installation space small, and equipment cost is relatively low, and operation repair is easy.
Description
Technical field
The present invention relates to electronics fields, and in particular to a kind of stripper waste liquid three-stage distillation recovery system.
Background technology
Domestic electronic manufacture industry development was rapid in recent years, and the usage amount of the electronic chemical products such as stripper also greatly increases.
Usually in the industrial manufacturing process such as liquid crystal display panel, semiconductor integrated circuit, need to be applied with stripper (Stripper)
The photoresist on microcircuit protection zone as mask is overlayed on to remove.Usually used stripper, which is mainly organic amine and polarity, to be had
The mixture of solvent, and also contain on a small quantity using moisture as the light component of representative.Above-mentioned organic amine includes monoethanolamine
(MEA), dimethylacetylamide (DMAC), N-METHYLFORMAMIDE (NMF) or N methyldiethanol amine (MDEA) etc.；Polarity is organic molten
Agent includes diethylene glycol dimethyl ether (DGME), diethylene glycol monobutyl ether (DGBE) or dimethyl sulfoxide (DMSO) (DMSO) etc..It is answered in stripper
A large amount of stripper waste liquids are generated with process, in the waste liquid other than containing a small amount of macromolecule resin (or PR glue) and water, big portion
It is the organic component for having recycle value to divide.Usually cleaning photoresist needs a large amount of solvent, and these solvent prices are never
Cheaply, from the viewpoint of recycling, these solvents of circular regeneration can not only reduce the harm to environment, moreover it is possible to reduce enterprise
Production cost.
Invention content
The technical problem to be solved by the present invention is to：Usually cleaning photoresist needs a large amount of organic solvent, and these
Costly, if by the direct sewage treatment of stripper waste liquid after cleaning photoresist, there are larger resource waves for solvent price
Take, the present invention provides the stripper waste liquid three-stage distillation recovery systems to solve the above problems.
The present invention is achieved through the following technical solutions：
Stripper waste liquid three-stage distillation recovery system, including pass through the sequentially connected head tank of pipeline, level-one evaporator, two
Grade evaporator and three-level evaporator, the level-one evaporator use thin film evaporator, and secondary evaporimeter and three-level evaporator are adopted
Use short-distance distiller；
The stripper waste liquid stored in head tank enters level-one evaporator by feeding pipe, through the evaporation of level-one evaporator
Light-component gas is discharged by top, heavies liquid enters secondary evaporimeter after pans I is temporary by level-one pipeline；Through two
Enter after the light component condensation of grade evaporator evaporation after pans IV is kept in and three-level evaporator is entered by two level pipeline；Through three-level
Enter after the light component condensation of evaporator evaporation after pans VI is kept in and products pot storage is entered by marker pipe.
Preferably, the level-one pipeline is equipped with moisture detector, through the qualified liquid of moisture detector detection through level-one
Pipeline, which enters in secondary evaporimeter, to be handled, and is detected underproof liquid and is back in head tank through level-one return line and stores.
Preferably, the recovery system further includes several additive tanks, and the additive tank is by supplementing pipeline and production
Product tank is connected to；Additive tank, which is used to be supplemented by products pot, lacks corresponding solvent, so that the solvent composition of products pot output products reaches
To specified proportioning.
Preferably, the additive tank is connected to secondary evaporimeter and three-level evaporator respectively by supplementing pipeline；Addition
Agent tank is used to, according to the solvent strength testing result to corresponding position, phase is supplemented into secondary evaporimeter and/or three-level evaporator
The solvent answered.
Preferably, the feeding pipe, level-one pipeline and diode road are respectively equipped with feed preheater, short distance preheater
I and short distance preheater II；The stripper waste liquid enters level-one evaporator after feed preheater preheats；The processing of level-one evaporator
Light component condensate liquid afterwards enters secondary evaporimeter after the I preheatings of short distance preheater；Treated that light component is cold for secondary evaporimeter
Lime set enters three-level evaporator after the II preheatings of short distance preheater.
Preferably, the level-one evaporator, secondary evaporimeter and three-level evaporator are corresponding respectively passes through primary heater, two
Grade heater and three-level heater are heated, and primary heater, secondary heater and three-level heater are to add with conduction oil
Thermal medium；The conduction oil is by primary cycle pipeline successively in primary heater, the heating system of level-one evaporator and charging
Circulation between preheater；Conduction oil is by secondary cycle pipeline successively in the heating system of secondary heater, secondary evaporimeter
Circulation between system and short distance preheater I；Conduction oil is by three-level circulation line successively in three-level heater, three-level evaporator
Heating system and short distance preheater II between circulation.
Preferably, the light-component gas through the evaporation of level-one evaporator is discharged into film condensation device by top, through thin
The liquid of film condensers condensation enters pans II and keeps in, later can be by pump discharge system.
Preferably, the secondary evaporimeter and/or three-level evaporator have pans III and centre by piping connection respectively
Tank V enters pans III storage through the unevaporated heavy constituent of secondary evaporimeter, through the unevaporated heavy constituent of three-level evaporator into
Enter pans V storages；The liquid stored in the pans III, which is discharged into residue barrelling or enters two level by return line, to be steamed
Continue distillation processing in hair device；The liquid stored in pans V, which is discharged into residue barrelling or enters three-level by return line, to be steamed
Continue distillation processing in hair device.
Preferably, the operating condition of the three-stage distillation recovery system is：
Level-one evaporator：Operating pressure, 5000pa；Operation temperature, the chuck heat conduction oil temperature 70~80 of level-one evaporator
DEG C, preferably 76 DEG C；
Secondary evaporimeter：Operating pressure, 760pa；Operation temperature, the chuck heat conduction oil temperature of secondary evaporimeter：110~
120 DEG C, preferably 110 DEG C；
Three-level evaporator：Operating pressure, 700pa；Operation temperature, the chuck heat conduction oil temperature of three-level evaporator：100~
110 DEG C, preferably 109 DEG C.
Preferably, the three-stage distillation recovery system is used to handle the stripper of water content < 10%.
The present invention has the advantage that and advantageous effect：
Three-stage distillation recovery system provided by the invention can be used for the recycling of the stripper of water content relatively low (< 10%), special
Not Shi Yongyu small treating capacity stripper recycling, device have installation space it is small, equipment cost is relatively low, operation repair letter
Just；
Three-stage distillation recovery system provided by the invention is mainly by level-one evaporator, secondary evaporimeter, three-level evaporator group
At：Level-one evaporator mainly reduces the water content in stripper, two level using thin film evaporator (or referred to as luwa evaporator)
Evaporator is mainly the solvent distilled out in raw material using short-distance distiller (or referred to as molecular still)；Three-level evaporator is adopted
It is that the solvent that will be distilled out distills again with short-distance distiller (or referred to as molecular still), so that product is reached electron level and want
It asks；
The present invention uses short-distance distiller, and after the completion of material is dehydrated through thin film evaporator, short-path distillation is delivered by pump
In device, material is evenly distributed in by distributing disc on inner tube wall after entering short-distance distiller, then by high-speed rotation scraping block by liquid
Body spreads to a thin layer of liquid film, and forms turbulent flow, so not only so that material shorter residence time in distiller, Er Qiechuan
Hot coefficient also improves！It is heated in heating zone when heated area when liquid material flows down along inner tube wall, it is more volatile in liquid
Group branch be evaporated out, the steam for being evaporated out, reach short-distance distiller built in condenser when, be condensed into liquid simultaneously
It is flowed downwardly into corresponding steaming thing storage tank by gravity；Those materials not being evaporated continue to flow down along wall, are finally collected
Into corresponding steaming excess storage tank.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is three-stage distillation recovery system process flow chart of the present invention.
Label and corresponding parts title in attached drawing：1- head tanks, 2- level-one evaporators, 3- secondary evaporimeters, 4- tri-
Grade evaporator, 5- pans I, 6- pans IV, 7- products pot, 8- moisture detectors, 9- additive tanks, 10- feed preheaters,
11- short distance preheater I, 12- short distance preheater II, 13- primary heaters, 14- secondary heaters, 15- three-level heaters, 16-
Pans VI, 17- film condensation device, 18- pans II, 19- pans III, 20- pans V, 21- solvent slop bucket, 22- are former
Charging basket.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of stripper waste liquid three-stage distillation recovery systems, including successively by pipeline
Head tank 1, level-one evaporator 2, secondary evaporimeter 3 and the three-level evaporator 4 of connection, the level-one evaporator 2 are steamed using film
Device is sent out, secondary evaporimeter 3 and three-level evaporator 4 are all made of short-distance distiller；
The stripper waste liquid stored in head tank 1 enters level-one evaporator 2 by feeding pipe, is steamed through level-one evaporator 2
The light-component gas of hair is discharged by top, heavies liquid enters secondary evaporimeter after pans I5 is temporary by level-one pipeline
3；Enter after the light component condensation evaporated through secondary evaporimeter 3 after pans IV6 is kept in and three-level evaporation is entered by two level pipeline
Device 4；Enter after the light component condensation evaporated through three-level evaporator 4 after pans VI16 is kept in and products pot is entered by marker pipe
7 storages.
Embodiment 2
It is further improved on the basis of embodiment 1, the level-one pipeline is equipped with moisture detector 8, through water content detection
Instrument 8, which detects qualified liquid and enters in secondary evaporimeter 3 through level-one pipeline, to be handled, and detects underproof liquid through level-one return duct
Road is back in head tank 1 and stores.
Embodiment 3
It is further improved on the basis of embodiment 2, recovery system further includes several additive tanks 9, the additive
Tank 9 is connected to by supplementing pipeline with products pot 7；Additive tank 9, which is used to be supplemented by products pot 7, lacks corresponding solvent, so that product
The solvent composition of 7 output products of tank reaches specified proportioning.Additive tank 9 by supplement pipeline respectively with secondary evaporimeter 3 and three
Grade evaporator 4 is connected to；Additive tank 9 is used for according to the solvent strength testing result of corresponding position, to secondary evaporimeter 3 and/
Or corresponding solvent is supplemented in three-level evaporator 4.
Embodiment 4
It is further improved on the basis of embodiment 3, the feeding pipe, level-one pipeline and diode road are respectively equipped with
Feed preheater 10, short distance preheater I11 and short distance preheater II12；The stripper waste liquid is after the preheating of feed preheater 10
Into level-one evaporator 2；Treated the light component condensate liquid of level-one evaporator 2 enters two level after the I11 preheatings of short distance preheater
Evaporator 3；Treated the light component condensate liquid of secondary evaporimeter 3 enters three-level evaporator 4 after the II12 preheatings of short distance preheater.
Level-one evaporator 2, secondary evaporimeter 3 and three-level evaporator 4 are corresponding respectively to pass through primary heater 13, secondary heater 14 and three
Grade heater 15 is heated, and primary heater 13, secondary heater 14 and three-level heater 15 are that heating is situated between with conduction oil
Matter；The conduction oil is pre- in primary heater 13, the heating system of level-one evaporator 2 and charging successively by primary cycle pipeline
Circulation between hot device 10；Conduction oil is by secondary cycle pipeline successively in the heating of secondary heater 14, secondary evaporimeter 3
Circulation between system and short distance preheater I11；Conduction oil is by three-level circulation line successively in three-level heater 15, three-level
Circulation between the heating system and short distance preheater II12 of evaporator 4.
Embodiment 5
It is further improved on the basis of embodiment 4, the light-component gas evaporated through level-one evaporator 2 is arranged by top
Go out to enter film condensation device 17, the liquid condensed through film condensation device 17 enters pans II18 and keeps in, and can be discharged by pump later
System.Secondary evaporimeter 3 and/or three-level evaporator 4 have pans III19 and pans V20 by piping connection respectively, through two
Grade 3 unevaporated heavy constituent of evaporator enters pans III19 storages, in entering through 4 unevaporated heavy constituent of three-level evaporator
Between tank V20 storage；The liquid stored in the pans III19, which is discharged into residue barrelling or enters two level by return line, to be steamed
Continue distillation processing in hair device 3；The liquid stored in pans V20 is discharged into residue barrelling or enters three-level by return line
Continue distillation processing in evaporator 4.
Embodiment 6
On the basis of embodiment 5, the stripper for handling water content < 10%, the organic solvent in glass metal is
The operating condition of monoethanolamine and dimethyl sulfoxide (DMSO), corresponding three-stage distillation recovery system is：
Level-one evaporator 2：Operating pressure, 5000pa；Operation temperature, 76 DEG C of the chuck heat conduction oil temperature of level-one evaporator 2；
Secondary evaporimeter 3：Operating pressure, 760pa；Operation temperature, the chuck heat conduction oil temperature of secondary evaporimeter 3：110℃；Three-level is steamed
Send out device 4：Operating pressure, 700pa；Operation temperature, the chuck heat conduction oil temperature of three-level evaporator 4：109℃.
One, specific workflow is (with stripper)：
1, system is passed through cooling water, compressed air
It is close to thin film evaporator mechanical seal cooling water water pipe, short-distance distiller and short-distance distiller machinery by lobe pump
Seal cooling water water pipe, film post-condenser cooling water water pipe, refrigerator cooling water water pipe provide cooling water.Water quality requirement is not less than
Industrial circulating cooling water water quality national standard)；8 DEG C to 25 DEG C of water temperature of water inlet；Water-main quantity of circulating water is not less than：15 cubic metres/
Hour.
2, each heater is opened
3, refrigerator is opened
Refrigerator mainly gives cold hydrazine to provide circulation vector, the main function of cold hydrazine be by short-distance distiller inner condenser not
The material of condensation further condenses, to prevent condensable gas from entering vacuum pump set.
4, run vacuum system
The corresponding vacuum pump set of thin film evaporator and the corresponding vacuum pump set of two short-distance distillers are opened successively.
5, charging
(1) to level-one evaporation feed liquor：
The valve on feeding pipe is opened, the motor being arranged on feeding pipe is started, the film for starting level-one evaporator turns
Son.
Raw material is delivered in level-one evaporator by feed preheater by feed pump and is evaporated, and material is in level-one evaporator
It is heated in (evaporator is thin film evaporator), part vaporizes, and steam enters film condensation device and is condensed into liquid, gone out by film
Material pump is delivered to out-of-bounds；The material not being evaporated is delivered to next stage processing by level-one short distance feed pump, is fed in level-one short distance
Moisture detector is installed on pump discharge pipeline, if detecting that material moisture is unqualified, material can be transmitted back to head tank.
Charging rate is 60~70kg/h, and preheater temperature is 60~70 DEG C, and heter temperature is 70~80 DEG C.Detect water
Content is divided to be less than 1%.
(2) it is fed to secondary evaporimeter：
It can be fed to secondary evaporimeter when the level readings in pans I reach 30%, first open level-one feeding pipe
On valve, start level-one feeding pipe on level-one short distance feed pump, start the short distance rotor of secondary evaporimeter.
The material for coming from level-one short distance feed pump enters in secondary evaporimeter, and material is in secondary evaporimeter (evaporation
Device is short-distance distiller) in be heated, part vaporizes, and the material after vaporization is condensed into liquid by the built-in condenser of secondary evaporimeter
Body is delivered to next stage processing by gravity downstream in pans IV by two level short distance feed pump；Light in the material not being vaporized
Photoresist content is very high, by flowing into pans III under gravity, is delivered to out-of-bounds by residue discharging pump, if solvent contains in residue
If amount is also very high, secondary evaporimeter can be returned and evaporated again.
Charging rate is 70~80kg/h, and preheater temperature is 100~110 DEG C, and heter temperature is 110~120 DEG C.Inspection
The concentration for going out etoh solvent amine and dimethyl sulfoxide (DMSO) is respectively：70% ± 5% and 30% ± 5%.
(3) to three-level evaporation feed liquor：
Secondary feed tube road can be first opened when the liquid level number of degrees in pans IV reach 30% to three-level evaporation feed liquor
On valve, start the two level short distance feed pump of secondary feed tube road, start the short distance rotor of secondary evaporimeter.
The material for coming from two level short distance feed pump enters in three-level evaporator, and material is in (the evaporation of three-level evaporator
Device is short-distance distiller) in heated, and part vaporizes, and the material after vaporization is condensed by the built-in condenser of three-level evaporator
Liquid is delivered to products pot by gravity downstream to pans VI by product discharge pump.The material not being vaporized from gravity to flow down
Into pans V, it is delivered to out-of-bounds by steaming excess discharging pump.
Charging rate is 80~90kg/h, and preheater temperature is 90~100 DEG C, and heter temperature is 100~110 DEG C.
The solvent composition ethanol amine of the material obtained in final products tank and the quality proportioning of dimethyl sulfoxide (DMSO) are 7:3.
Two, other influences factor：
1, charging rate：Charging rate can be adjusted by changing the frequency of feed pump, if inlet amount is excessive, can led
The thickness of liquid film that liquid is formed in short-distance distiller inner tube wall is caused to increase, to influence distilling effect；But if inlet amount mistake
Small, this may reduce the service life of biofilm block, therefore the charging rate of secondary evaporimeter and three-level evaporator is set as 50
~120kg/h.
2, influence of the prime degassing to short-path distillation：Certain materials may contain a large amount of light component substances and can not coagulate
Property gas, these substances must remove in thin film evaporator；The not degassed or halfway material of degassing is directly entered short distance
Distiller can prevent molecular still from reaching ideal operating pressure.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. stripper waste liquid three-stage distillation recovery system, which is characterized in that including by the sequentially connected head tank of pipeline (1),
Level-one evaporator (2), secondary evaporimeter (3) and three-level evaporator (4), the level-one evaporator (2) use thin film evaporator, two
Grade evaporator (3) and three-level evaporator (4) are all made of short-distance distiller；
The stripper waste liquid stored in head tank (1) enters level-one evaporator (2) by feeding pipe, through level-one evaporator (2)
The light-component gas of evaporation is discharged by top, heavies liquid enters two level by level-one pipeline after pans I (5) is temporary and steams
Send out device (3)；Enter after the light component condensation evaporated through secondary evaporimeter (3) pans IV (6) it is temporary after by two level pipeline into
Enter three-level evaporator (4)；Enter after pans VI (16) is kept in after the light component condensation evaporated through three-level evaporator (4) and passes through row
Expects pipe road enters products pot (7) storage.
2. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that on the level-one pipeline
Equipped with moisture detector (8), enter in secondary evaporimeter (3) through level-one pipeline through the qualified liquid of moisture detector (8) detection
Processing detects underproof liquid and is back to storage in head tank (1) through level-one return line.
3. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that the recovery system is also
Including several additive tanks (9), the additive tank (9) is connected to by supplementing pipeline with products pot (7)；Additive tank (9)
Corresponding solvent is lacked for being supplemented by products pot (7), so that the solvent composition of products pot (7) output products reaches specified proportioning.
4. stripper waste liquid three-stage distillation recovery system according to claim 3, which is characterized in that the additive tank
(9) it is connected to respectively with secondary evaporimeter (3) and three-level evaporator (4) by supplementing pipeline；Additive tank (9) is used for according to right
The solvent strength testing result for answering position, the corresponding solvent of supplement into secondary evaporimeter (3) and/or three-level evaporator (4).
5. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that the feeding pipe,
Level-one pipeline and diode road are respectively equipped with feed preheater (10), short distance preheater I (11) and short distance preheater II (12)；
The stripper waste liquid enters level-one evaporator (2) after feed preheater (10) preheating；Treated for level-one evaporator (2) gently
Component condensate liquid enters secondary evaporimeter (3) after short distance preheater I (11) preheatings；Secondary evaporimeter (3) treated light group
Condensate liquid is divided to enter three-level evaporator (4) after short distance preheater II (12) preheatings.
6. stripper waste liquid three-stage distillation recovery system according to claim 5, which is characterized in that the level-one evaporator
(2), secondary evaporimeter (3) and three-level evaporator (4) are corresponded to respectively through primary heater (13), secondary heater (14) and three
Grade heater (15) is heated, and primary heater (13), secondary heater (14) and three-level heater (15) are with conduction oil
For heat medium；The conduction oil is by primary cycle pipeline successively in the heating of primary heater (13), level-one evaporator (2)
Circulation between system and feed preheater (10)；Conduction oil by secondary cycle pipeline successively secondary heater (14),
Circulation between the heating system and short distance preheater I (11) of secondary evaporimeter (3)；Conduction oil by three-level circulation line according to
The secondary circulation between three-level heater (15), the heating system of three-level evaporator (4) and short distance preheater II (12).
7. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that described to be evaporated through level-one
The light-component gas of device (2) evaporation is discharged into film condensation device (17) by top, the liquid condensed through film condensation device (17)
It is temporary into pans II (18).
8. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that the secondary evaporimeter
(3) and/or three-level evaporator (4) has pans III (19) and pans V (20) by piping connection respectively, through dual evaporation
Device (3) unevaporated heavy constituent enters pans III (19) storages, in entering through the unevaporated heavy constituent of three-level evaporator (4)
Between tank V (20) store；The liquid stored in the pans III (19) is discharged into residue barrelling or enters two by return line
Continue distillation processing in grade evaporator (3)；The liquid stored in pans V (20) is discharged into residue barrelling or passes through return line
It is handled into distillation is continued in three-level evaporator (4).
9. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that the three-stage distillation is returned
The operating condition of receipts system is：
Level-one evaporator (2)：Operating pressure, 5000pa；Operation temperature, the chuck heat conduction oil temperature 70 of level-one evaporator (2)~
80℃；
Secondary evaporimeter (3)：Operating pressure, 760pa；Operation temperature, the chuck heat conduction oil temperature of secondary evaporimeter (3)：110~
120℃；
Three-level evaporator (4)：Operating pressure, 700pa；Operation temperature, the chuck heat conduction oil temperature of three-level evaporator (4)：100~
110℃。
10. stripper waste liquid three-stage distillation recovery system according to claim 1, which is characterized in that the three-stage distillation
Recovery system is used to handle the stripper of water content < 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532621.2A CN108793291A (en) | 2018-05-29 | 2018-05-29 | Stripper waste liquid three-stage distillation recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532621.2A CN108793291A (en) | 2018-05-29 | 2018-05-29 | Stripper waste liquid three-stage distillation recovery system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792984A (en) * | 2020-07-14 | 2020-10-20 | 福建中融科技有限公司 | Stripping liquid recovery device |
| RU2803723C1 (en) * | 2023-03-01 | 2023-09-19 | Общество с ограниченной ответственностью "ИНЕРТА" | Solvent recovery plant |
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| CN102951761A (en) * | 2012-11-14 | 2013-03-06 | 杭州格林达化学有限公司 | Method for recovering waste photoresist stripper |
| CN103387307A (en) * | 2013-08-08 | 2013-11-13 | 王岚 | Method for processing organic waste liquor in electronic manufacturing industry |
| CN203411428U (en) * | 2013-08-08 | 2014-01-29 | 王岚 | Device for recovering organic solvent from organic wastewater in electronic manufacturing industry |
| CN206597337U (en) * | 2017-03-14 | 2017-10-31 | 四川久远化工技术有限公司 | A kind of short-distance distiller |
| CN206715350U (en) * | 2017-03-14 | 2017-12-08 | 四川久远化工技术有限公司 | A kind of rotary film evaporator |
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| CN102951761A (en) * | 2012-11-14 | 2013-03-06 | 杭州格林达化学有限公司 | Method for recovering waste photoresist stripper |
| CN103387307A (en) * | 2013-08-08 | 2013-11-13 | 王岚 | Method for processing organic waste liquor in electronic manufacturing industry |
| CN203411428U (en) * | 2013-08-08 | 2014-01-29 | 王岚 | Device for recovering organic solvent from organic wastewater in electronic manufacturing industry |
| CN206597337U (en) * | 2017-03-14 | 2017-10-31 | 四川久远化工技术有限公司 | A kind of short-distance distiller |
| CN206715350U (en) * | 2017-03-14 | 2017-12-08 | 四川久远化工技术有限公司 | A kind of rotary film evaporator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111792984A (en) * | 2020-07-14 | 2020-10-20 | 福建中融科技有限公司 | Stripping liquid recovery device |
| RU2803723C1 (en) * | 2023-03-01 | 2023-09-19 | Общество с ограниченной ответственностью "ИНЕРТА" | Solvent recovery plant |
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Application publication date: 20181113 |