CN108079744A - A kind of organic solvent recovery device and drying tunnel drying system - Google Patents
A kind of organic solvent recovery device and drying tunnel drying system Download PDFInfo
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- CN108079744A CN108079744A CN201711380900.3A CN201711380900A CN108079744A CN 108079744 A CN108079744 A CN 108079744A CN 201711380900 A CN201711380900 A CN 201711380900A CN 108079744 A CN108079744 A CN 108079744A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of organic solvent recovery device and drying tunnel drying units,It includes the first gas-gas heat exchanger,First aerial cooler,Second gas-gas heat exchanger,Second aerial cooler,The Waste gas outlet of the hot air intake connection exhaust emission device of first gas-gas heat exchanger,The cold air outlet of first gas-gas heat exchanger connects the import of the first aerial cooler,The hot air intake of the second gas-gas heat exchanger of outlet of first aerial cooler,The cold air outlet of second gas-gas heat exchanger connects the import of the second aerial cooler,The outlet molecular sieve Adsorption Concentration runner of second aerial cooler,The outlet of second aerial cooler also connects the cold air import of the second gas-gas heat exchanger,The heat outlet of second gas-gas heat exchanger connects the cold air import of the first gas-gas heat exchanger,The air inlet of the heat outlet connection exhaust emission device of first gas-gas heat exchanger.The organic solvent recovery device can reduce the energy expenditure in organic solvent removal process, reduce the cost of organic solvent recycling.
Description
Technical field
The present invention relates to solvent recovery technical fields, are dried in particular to a kind of organic solvent recovery device and drying tunnel
The high boiling organic solvent retracting device that is generated in dry systems, especially lithium ion battery, Kapton production process and
Drying tunnel drying system.
Background technology
The high boiling solvent that chemicals production field uses will much evaporate solvent by drying.Such as polyamides
Imines film production process, the gap that mouth is cast by casting machine are cast, the dimethyl acetamide that hot-air seasoning process evaporates
(DMAC)；It is common technological operation, such as lithium that for another example the mode that a kind of material use is coated with, which is coated on another base material,
Exactly slurry is made with cohering pole, conductive agent and organic solvent in cell positive material by the manufacturing process of ion battery anode pole piece
It afterwards coated on aluminum foil, then dries, drying course generates N-Methyl pyrrolidone (NMP).
And the high boiling solvent drying course as DMAC and NMP is usually required for specific humiture, and dried
Solvent strength will maintain lower value in journey hot wind, otherwise there is risk of explosion, thus drying course is required for larger air draft.Row
The hot wind gone out has taken away heat and has added energy consumption, while the organic solvent that hot wind is taken out of causes serious environmental pollution and money again
Source wastes, and therefore, the organic solvent generated in drying course is recycled, imperative.
The patent of invention of Patent No. 201410332899.7, which discloses a kind of heat pump, combines with molecular sieve adsorption runner and follows
Ring organic solvent recovery device makes gas temperature rise reach energy conservation while recycling organic solvent using heat pump
Purpose, while realize the zero-emission saved under coating energy conditions.This kind of technique, although while recycling organic solvent,
A large amount of air exhaust waste heats have been recycled, but have used the two-stage heat pump of high temperature heat pump and hot pump in low temp, refrigeration energy consumption is larger.
Therefore, while how ensureing organic solvent recycling, the energy expenditure in organic solvent removal process is reduced, is become
The technical issues of those skilled in the art's urgent need to resolve.
The content of the invention
In consideration of it, the present invention proposes a kind of organic solvent recovery device and drying tunnel drying system, ensureing organic solvent
While recycling, most drying tunnel air draft heats can be also recycled, so as to reduce the energy expenditure in organic solvent removal process,
Reduce the cost of organic solvent recycling.
On the one hand, a kind of organic solvent recovery device proposed by the present invention returns for the organic solvent of exhaust emission device
It receives, including the first gas-gas heat exchanger, the first aerial cooler, the second gas-gas heat exchanger, the second aerial cooler, first gas
The Waste gas outlet of the hot air intake connection exhaust emission device of gas heat exchanger, the cold air outlet of first gas-gas heat exchanger connect
Lead to the import of first aerial cooler, the heat of the second gas-gas heat exchanger described in the outlet of first aerial cooler
Gas import, the cold air outlet of second gas-gas heat exchanger connect the import of second aerial cooler, second air
The outlet molecular sieve Adsorption Concentration runner of cooler, the outlet of second aerial cooler also connect the second gas gas
The cold air import of heat exchanger, the heat outlet of second gas-gas heat exchanger connect the cold air of first gas-gas heat exchanger into
Mouthful, the heat outlet of first gas-gas heat exchanger connects the air inlet of the exhaust emission device.
Above-mentioned organic solvent recovery device, it is preferable that the molecular sieve Adsorption Concentration runner includes molecular sieve runner, row
Wind wind turbine, regenerative heater and regeneration wind turbine, the molecular sieve runner include treatment region, cooling zone, renewing zone, and described second is empty
The outlet of Gas Cooler connects the import of the treatment region, cooling zone of the molecular sieve runner simultaneously, and the outlet of the treatment region connects
Lead to the import of the exhaust fan, the import of regenerative heater described in the outlet of the cooling zone, the regenerative heater
Outlet described in renewing zone import, the import of wind turbine is regenerated described in the outlet of the renewing zone.
Above-mentioned organic solvent recovery device, it is preferable that the first air cooling described in the outlet of the regeneration wind turbine
The import of device.
Above-mentioned organic solvent recovery device, it is preferable that further include processing wind turbine, the processing wind turbine is arranged on described the
Between the air inlet of the heat outlet of one gas-gas heat exchanger and the exhaust emission device.
Above-mentioned organic solvent recovery device, it is preferable that first aerial cooler and the second aerial cooler is follow
Ring water aerial cooler, the circulating water temperature of second aerial cooler are less than the circulating water temperature of first aerial cooler
Degree.
On the other hand, the invention also provides a kind of drying tunnel drying system, including drying tunnel and organic solvent recovery device, together
When, the organic solvent recovery device includes the first gas-gas heat exchanger, the first aerial cooler, the second gas-gas heat exchanger, second
Aerial cooler, the Waste gas outlet of the hot air intake connection drying tunnel of first gas-gas heat exchanger, first gas-gas heat exchange
The cold air outlet of device connects the import of first aerial cooler, second described in the outlet of first aerial cooler
The hot air intake of gas-gas heat exchanger, the cold air outlet of second gas-gas heat exchanger connect second aerial cooler into
Mouthful, the outlet molecular sieve Adsorption Concentration runner of second aerial cooler, the outlet of second aerial cooler is also
The cold air import of second gas-gas heat exchanger is connected, the heat outlet of second gas-gas heat exchanger connects the first gas gas
The cold air import of heat exchanger, the heat outlet of first gas-gas heat exchanger connect the air inlet of the drying tunnel.
Above-mentioned drying tunnel drying system, it is preferable that the molecular sieve Adsorption Concentration runner includes molecular sieve runner, air draft wind
Machine, regenerative heater and regeneration wind turbine, the molecular sieve runner include treatment region, cooling zone, renewing zone, and second air is cold
But the outlet of device connects the import of the treatment region, cooling zone of the molecular sieve runner, the outlet institute of the treatment region simultaneously
The import of exhaust fan is stated, the import of regenerative heater described in the outlet of the cooling zone, the regenerative heater goes out
Mouth connects the import of the renewing zone, and the import of wind turbine is regenerated described in the outlet of the renewing zone.
Above-mentioned drying tunnel drying system, it is preferable that the first aerial cooler described in the outlet of the regeneration wind turbine
Import.
Above-mentioned drying tunnel drying system, it is preferable that further include processing wind turbine, the processing wind turbine is arranged on first gas
Between the air inlet of the heat outlet of gas heat exchanger and the exhaust emission device.
Above-mentioned drying tunnel drying system, it is preferable that first aerial cooler and the second aerial cooler are recirculated water
Aerial cooler, the circulating water temperature of second aerial cooler are less than the circulating water temperature of first aerial cooler.
A kind of organic solvent recovery device and drying tunnel drying unit proposed by the present invention, wherein organic solvent recovery device bag
Include the first gas-gas heat exchanger, the first aerial cooler, the second gas-gas heat exchanger, the second aerial cooler, the first gas-gas heat exchanger
Hot air intake connection exhaust emission device (such as drying tunnel) Waste gas outlet, the cold air outlet connection the of the first gas-gas heat exchanger
The import of one aerial cooler, the hot air intake of the second gas-gas heat exchanger of outlet of the first aerial cooler, the second gas gas
The cold air outlet of heat exchanger connects the import of the second aerial cooler, and the outlet molecular sieve absorption of the second aerial cooler is dense
Contracting runner, the outlet of the second aerial cooler also connect the cold air import of the second gas-gas heat exchanger, the heat of the second gas-gas heat exchanger
The cold air import of the first gas-gas heat exchanger of gas outlet, the heat outlet connection exhaust emission device of the first gas-gas heat exchanger
The air inlet of (such as drying tunnel).The organic solvent recovery device and drying tunnel drying unit, the first gas-gas heat exchanger are mainly used for high temperature
Waste heat recovery (is used to be to heat into the gas of exhaust emission device or drying tunnel), and the first aerial cooler cools down for further
Exhaust gas, while recovery section organic solvent, the second gas-gas heat exchanger are used to recycle the cold of circulation return air, recycle the process of cold
In, exhaust gas temperature is further reduced, and condense recovery section organic solvent, the purpose of the second aerial cooler be make exhaust gas into
One step cools down, and organic solvent further condenses recycling.By the device, the Cryogenic air after the second aerial cooler, by
Low in solvent strength, more than 70% can send exhaust emission device back to for cycle operation, and partial gas is adsorbed by molecular sieve
It is emptied after concentration runner processing meet the requirement of environmental protection, the purpose for emptying a small amount of air is maintain exhaust emission device or drying tunnel negative
Pressure.The purpose that more than 70% gas sends exhaust emission device or drying tunnel back to is that the air after being recycled due to condensation is dry air,
The dehumidifying cost of fresh air can be reduced by sending back to.Since gas temperature is relatively low after the second aerial cooler, pass through before sending back to
It is recycled after entering back into the heating of the first gas-gas heat exchanger after second gas-gas heat exchanger recycling cold into exhaust emission device.Cause
This, which can recycle most drying tunnel air draft heats, so as to reduce while organic solvent recycling is ensured
Energy expenditure in solvent removal process reduces the cost of organic solvent recycling.
Description of the drawings
Fig. 1 is a kind of principle schematic for organic solvent recovery device that the specific embodiment of the invention proposes；
Fig. 2 is a kind of principle schematic for drying tunnel drying unit that the specific embodiment of the invention proposes
In figure：10 first gas-gas heat exchangers；20 first aerial coolers；30 second gas-gas heat exchangers；40 second air are cold
But device；50 molecular sieve Adsorption Concentration runners；51 molecular sieve runners；511 treatment regions；512 cooling zones；513 renewing zones；52 air draft wind
Machine；53 regenerative heaters；54 regeneration wind turbines；60 processing wind turbines
Specific embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application
Feature in example and embodiment can be mutually combined.
It should be noted that " first " that occurs in the present invention, " second " are only used for distinguishing different structure and component, no elder generation
Point afterwards, the less restriction as structure or component in itself.
On the one hand, a kind of organic solvent recovery device proposed by the present invention returns for the organic solvent of exhaust emission device
It receives, such as the NMP recycling that lithium ion battery production process coating machine generates, what Kapton production process casting machine generated
DMAC is recycled, cold including the first gas-gas heat exchanger 10, the first aerial cooler 20, the second gas-gas heat exchanger 30, the second air
But device 40, the Waste gas outlet of the hot air intake connection exhaust emission device of the first gas-gas heat exchanger 10, the first gas-gas heat exchanger
10 cold air outlet connects the import of the first aerial cooler 20, the second gas-gas heat exchange of outlet of the first aerial cooler 20
The hot air intake of device 30, the cold air outlet of the second gas-gas heat exchanger 30 connect the import of the second aerial cooler 40, the second air
The outlet molecular sieve Adsorption Concentration runner 50 of cooler 40, the outlet of the second aerial cooler 40 also connect the second gas gas and change
The cold air import of hot device 30, the heat outlet of the second gas-gas heat exchanger 30 connect the cold air import of the first gas-gas heat exchanger 10, the
The air inlet of the heat outlet connection exhaust emission device of one gas-gas heat exchanger 10.
In the program, the first gas-gas heat exchanger 10 is mainly used for high-temperature residual heat recycling and (is used to be into exhaust emission device
Gas heating), the first aerial cooler 20 is for further cooling down exhaust gas, while recovery section organic solvent, the second gas gas
Heat exchanger 30 is used to recycle the cold of circulation return air, and during recycling cold, exhaust gas temperature is further reduced, and is condensed back to
Receiving portions organic solvent, the purpose of the second aerial cooler 40 is that exhaust gas is made further to cool down, and organic solvent is further condensed back to
It receives.By the device, the Cryogenic air after the second aerial cooler 40, since solvent strength is low, more than 70% can send
It returns exhaust emission device and is used for cycle operation, after partial gas handles meet the requirement of environmental protection by molecular sieve Adsorption Concentration runner 50
Emptying, the purpose for emptying a small amount of air are to maintain the negative pressure of exhaust emission device.More than 70% gas sends exhaust emission device back to
Purpose be due to condensation recycle after air be dry air, send the dehumidifying cost that can reduce fresh air back to.Due to passing through
Gas temperature is relatively low after second aerial cooler 40, and first is entered back into after recycling cold by the second gas-gas heat exchanger 30 before sending back to
Gas-gas heat exchanger 10 recycles after heating into exhaust emission device.Therefore, which can ensure organic solvent
While recycling, most drying tunnel air draft heats are recycled, so as to reduce the energy expenditure in organic solvent removal process, are reduced
The cost of organic solvent recycling.
Above-mentioned organic solvent recovery device, specifically, molecular sieve Adsorption Concentration runner 50 include molecular sieve runner 51, row
Wind wind turbine 52, regenerative heater 53 and regeneration wind turbine 54, molecular sieve runner 51 include treatment region 511, cooling zone 512, renewing zone
513, the outlet of the second aerial cooler 40 connects the import of the treatment region 511, cooling zone 512 of molecular sieve runner 51, place simultaneously
Manage the import of the outlet exhaust fan 52 in area 511, the import of the outlet regenerative heater 53 of cooling zone 512, regeneration
The import of the outlet renewing zone 513 of heater 53, the import of the outlet regeneration wind turbine 54 of renewing zone 513.It is meanwhile excellent
Selection of land regenerates the import of the first aerial cooler of outlet 20 of wind turbine 54.With this solution, at molecular sieve runner 51
The gas of reason is divided into two parts, and a part of gas (about more than 60%) becomes pure air by air draft after treatment region 511
Reason wind turbine 52 directly empties, and another part gas (being less than about 40%) heats behind cooling zone 512 by regenerative heater 53
After regenerating solvent by renewing zone 513 after to regeneration temperature, before sending the first aerial cooler 20 back to by regeneration wind turbine 54, make point
The solvent that son sieve runner 51 regenerates obtains condensation recycling.
Above-mentioned organic solvent recovery device returns to the air capacity of exhaust emission device for ease of control, it is preferable that also wrap
Processing wind turbine 60 is included, processing wind turbine 60 is arranged on the heat outlet of the first gas-gas heat exchanger 10 and the air inlet of exhaust emission device
Between.
Above-mentioned organic solvent recovery device, it is preferable that the first aerial cooler 20 and the second aerial cooler 40 is follow
Ring water aerial cooler, the circulating water temperature of the second aerial cooler 40 are less than the circulating water temperature of the first aerial cooler 20.
Pass through two stage cycle water cooling, it is possible to reduce the required energy expenditure of recirculated water refrigeration.
The principle of the organic solvent recovery device is：The high-temp waste gas discharged from exhaust emission device first passes through the first gas gas
Heat exchanger 10 imparts heat to the circulation return air for being sent into exhaust emission device, recycles the first aerial cooler 20 cooling exhaust gas,
Partial solvent condensation recycling is had in cooling procedure.Exhaust gas recycles the second gas-gas heat exchanger after the first aerial cooler 20
The cold of 30 recycling circulation return airs, during recycling cold, exhaust gas temperature is further reduced, and it is molten to condense recovery section
Agent.Exhaust gas makes air further cool down, solvent further condenses recycling using the second aerial cooler 40.It is empty by second
Cryogenic air after Gas Cooler 40, since solvent strength is low, more than 70% can send exhaust emission device recycling back to, few
Portion gas empties after handling meet the requirement of environmental protection by molecular sieve Adsorption Concentration runner 50, and the purpose for emptying a small amount of air is to maintain
The negative pressure of exhaust emission device.The purpose that more than 70% gas sends exhaust emission device back to is that the air after being recycled due to condensation is
Dry air sends the dehumidifying cost that can reduce fresh air back to.Since gas temperature is relatively low after the second aerial cooler 40,
It is entered back into after recycling cold by the second gas-gas heat exchanger 30 before sending back to after the first gas-gas heat exchanger 10 heats into exhaust gas discharge
Device recycles.
Gas into the processing of molecular sieve runner 51 is divided into two parts, and a part of gas (about more than 60%) is by processing
Become pure air behind area 511 directly to be emptied by air draft reason wind turbine 52, another part gas (being less than about 40%) is by cooling zone
After regenerating solvent by renewing zone 513 after regenerative heater 53 is heated to regeneration temperature after 512, sent by regeneration wind turbine 54
Before returning the first aerial cooler 20, the solvent that molecular sieve runner 51 regenerates is made to obtain condensation recycling.
On the other hand, as shown in Fig. 2, the invention also provides a kind of drying tunnel drying system, including drying tunnel and organic solvent
Retracting device, meanwhile, organic solvent recovery device includes the first gas-gas heat exchanger 10, the first aerial cooler 20, the second gas gas
Heat exchanger 30, the second aerial cooler 40, the Waste gas outlet of the hot air intake connection drying tunnel of the first gas-gas heat exchanger 10, first
The cold air outlet of gas-gas heat exchanger 10 connects the import of the first aerial cooler 20, the outlet of the first aerial cooler 20 the
The hot air intake of two gas-gas heat exchangers 30, the cold air outlet of the second gas-gas heat exchanger 30 connect the second aerial cooler 40 into
Mouthful, the outlet molecular sieve Adsorption Concentration runner 50 of the second aerial cooler 40, the outlet of the second aerial cooler 40 also connects
The cold air import of logical second gas-gas heat exchanger 30, the heat outlet of the second gas-gas heat exchanger 30 connect the first gas-gas heat exchanger 10
Cold air import, the air inlet of the heat outlet connection drying tunnel of the first gas-gas heat exchanger 10.
In the program, the first gas-gas heat exchanger 10 is mainly used for high-temperature residual heat recycling and (is used to add for the gas into drying tunnel
Heat), the first aerial cooler 20 is for further cooling exhaust gas, while recovery section organic solvent, the second gas-gas heat exchanger 30
For recycling the cold of circulation return air, during recycling cold, exhaust gas temperature is further reduced, and condensation recovery section has
Solvent, the purpose of the second aerial cooler 40 is that exhaust gas is made further to cool down, and organic solvent further condenses recycling.By this
Device, the Cryogenic air after the second aerial cooler 40, since solvent strength is low, more than 70%, which can send drying tunnel back to, is used for
Cycle operation, partial gas empty after handling meet the requirement of environmental protection by molecular sieve Adsorption Concentration runner 50, empty a small amount of air
Purpose be maintain drying tunnel negative pressure.The purpose that more than 70% gas sends drying tunnel back to is that the air after being recycled due to condensation is drying
Air sends the dehumidifying cost that can reduce fresh air back to.Since gas temperature is relatively low after the second aerial cooler 40, send back to
It enters back into after the heating of the first gas-gas heat exchanger 10 after the preceding recycling cold by the second gas-gas heat exchanger 30 and is recycled into drying tunnel.
Therefore, which can recycle most drying tunnel air draft heats while organic solvent recycling is ensured, so as to
The energy expenditure in organic solvent removal process is reduced, reduces the cost of organic solvent recycling.
Above-mentioned drying tunnel drying system, specifically, molecular sieve Adsorption Concentration runner 50 include molecular sieve runner 51, air draft wind
Machine 52, regenerative heater 53 and regeneration wind turbine 54, molecular sieve runner 51 include treatment region 511, cooling zone 512, renewing zone 513,
The outlet of second aerial cooler 40 connects the import of the treatment region 511, cooling zone 512 of molecular sieve runner 51, treatment region simultaneously
The import of 511 outlet exhaust fan 52, the import of the outlet regenerative heater 53 of cooling zone 512, regeneration heating
The import of the outlet renewing zone 513 of device 53, the import of the outlet regeneration wind turbine 54 of renewing zone 513.Likewise it is preferred that
Ground regenerates the import of the first aerial cooler of outlet 20 of wind turbine 54.With this solution, handled into molecular sieve runner 51
Gas be divided into two parts, a part of gas (about more than 60%) becomes pure air after treatment region 511 and is managed by air draft
Wind turbine 52 directly empties, and another part gas (being less than about 40%) is heated to behind cooling zone 512 by regenerative heater 53
After regenerating solvent by renewing zone 513 after regeneration temperature, before sending the first aerial cooler 20 back to by regeneration wind turbine 54, make molecule
The solvent that sieve runner 51 regenerates obtains condensation recycling.
Above-mentioned drying tunnel drying system returns to the air capacity of drying tunnel for ease of control, it is preferable that further include processing wind turbine
60, processing wind turbine 60 is arranged between the heat outlet of the first gas-gas heat exchanger 10 and the air inlet of drying tunnel.
Above-mentioned drying tunnel drying system, it is preferable that the first aerial cooler 20 and the second aerial cooler 40 are recirculated water
Aerial cooler, the circulating water temperature of the second aerial cooler 40 are less than the circulating water temperature of the first aerial cooler 20.Pass through
Two stage cycle water cooling, it is possible to reduce the required energy expenditure of recirculated water refrigeration.
The organic solvent of the drying tunnel drying system recycles principle：The high-temp waste gas discharged from drying tunnel first passes through the first gas gas
Heat exchanger 10 imparts heat to the circulation return air for being sent into drying tunnel, recycles the first aerial cooler 20 cooling exhaust gas, cooling procedure
In have partial solvent condensation recycling.Exhaust gas recycles the recycling of the second gas-gas heat exchanger 30 to follow after the first aerial cooler 20
The cold of loopback wind, during recycling cold, exhaust gas temperature is further reduced, and condenses recovery section solvent.Exhaust gas is again
By the second aerial cooler 40, air is made further to cool down, solvent further condenses recycling.By the second aerial cooler 40
Cryogenic air afterwards, since solvent strength is low, more than 70% can send drying tunnel recycling back to, and partial gas is inhaled by molecular sieve
Attached concentration runner 50 empties after handling meet the requirement of environmental protection, and the purpose for emptying a small amount of air is to maintain the negative pressure of drying tunnel.70% with
The purpose that upper gas sends drying tunnel back to is that the air after being recycled due to condensation is dry air, sends the dehumidifying that can reduce fresh air back to
Cost.Since gas temperature is relatively low after the second aerial cooler 40, recycled before sending back to by the second gas-gas heat exchanger 30 cold
It is recycled after the heating of the first gas-gas heat exchanger 10 is entered back into after amount into drying tunnel.
Gas into the processing of molecular sieve runner 51 is divided into two parts, and a part of gas (about more than 60%) is by processing
Become pure air behind area 511 directly to be emptied by air draft reason wind turbine 52, another part gas (being less than about 40%) is by cooling zone
After regenerating solvent by renewing zone 513 after regenerative heater 53 is heated to regeneration temperature after 512, sent by regeneration wind turbine 54
Before returning the first aerial cooler 20, the solvent that molecular sieve runner 51 regenerates is made to obtain condensation recycling.
It these are only the preferred embodiment of the present invention, be not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of organic solvent recovery device recycles for the organic solvent of exhaust emission device, which is characterized in that including first
Gas-gas heat exchanger (10), the first aerial cooler (20), the second gas-gas heat exchanger (30), the second aerial cooler (40), it is described
The Waste gas outlet of the hot air intake connection exhaust emission device of first gas-gas heat exchanger (10), first gas-gas heat exchanger
(10) cold air outlet connects the import of first aerial cooler (20), and the outlet of first aerial cooler (20) connects
Lead to the hot air intake of second gas-gas heat exchanger (30), the cold air outlet connection described the of second gas-gas heat exchanger (30)
The import of two aerial coolers (40), the outlet molecular sieve Adsorption Concentration runner of second aerial cooler (40)
(50), the outlet of second aerial cooler (40) also connects the cold air import of second gas-gas heat exchanger (30), described
The heat outlet of second gas-gas heat exchanger (30) connects the cold air import of first gas-gas heat exchanger (10), the first gas gas
The heat outlet of heat exchanger (10) connects the air inlet of the exhaust emission device.
2. organic solvent recovery device according to claim 1, which is characterized in that the molecular sieve Adsorption Concentration runner
(50) molecular sieve runner (51), exhaust fan (52), regenerative heater (53) and regeneration wind turbine (54) are included, the molecular sieve turns
Taking turns (51) includes treatment region (511), cooling zone (512), renewing zone (513), and the outlet of second aerial cooler (40) is same
The import of the treatment region (511), cooling zone (512) of molecular sieve runner (51) described in Shi Liantong, the outlet of the treatment region (511)
The import of the exhaust fan (52) is connected, the import of regenerative heater (53) described in the outlet of the cooling zone (512),
The import of renewing zone (513) described in the outlet of the regenerative heater (53), the outlet institute of the renewing zone (513)
State the import of regeneration wind turbine (54).
3. organic solvent recovery device according to claim 2, which is characterized in that the outlet of the regeneration wind turbine (54) connects
Lead to the import of first aerial cooler (20).
4. according to claim 1-3 any one of them organic solvent recovery devices, which is characterized in that further include processing wind turbine
(60), the processing wind turbine (60) is arranged on the heat outlet of first gas-gas heat exchanger (10) and the exhaust emission device
Air inlet between.
5. according to claim 1-3 any one of them organic solvent recovery devices, which is characterized in that first air cooling
Device (20) and the second aerial cooler (40) are recirculated water aerial cooler, the circulating water temperature of second aerial cooler (40)
Degree is less than the circulating water temperature of first aerial cooler (20).
A kind of 6. drying tunnel drying system, including drying tunnel and organic solvent recovery device, which is characterized in that the organic solvent recycling
Device includes the first gas-gas heat exchanger (10), the first aerial cooler (20), the second gas-gas heat exchanger (30), the second air cooling
Device (40), the Waste gas outlet of the hot air intake connection drying tunnel of first gas-gas heat exchanger (10), first gas-gas heat exchange
The cold air outlet of device (10) connects the import of first aerial cooler (20), the outlet of first aerial cooler (20)
The hot air intake of second gas-gas heat exchanger (30) is connected, described in the cold air outlet connection of second gas-gas heat exchanger (30)
The import of second aerial cooler (40), the outlet molecular sieve Adsorption Concentration runner of second aerial cooler (40)
(50), the outlet of second aerial cooler (40) also connects the cold air import of second gas-gas heat exchanger (30), described
The heat outlet of second gas-gas heat exchanger (30) connects the cold air import of first gas-gas heat exchanger (10), the first gas gas
The heat outlet of heat exchanger (10) connects the air inlet of the drying tunnel.
7. drying tunnel drying system according to claim 6, which is characterized in that molecular sieve Adsorption Concentration runner (50) bag
Include molecular sieve runner (51), exhaust fan (52), regenerative heater (53) and regeneration wind turbine (54), the molecular sieve runner (51)
Including treatment region (511), cooling zone (512), renewing zone (513), the outlet of second aerial cooler (40) connects simultaneously
The import of the treatment region (511), cooling zone (512) of the molecular sieve runner (51), the outlet institute of the treatment region (511)
State the import of exhaust fan (52), the import of regenerative heater (53) described in the outlet of the cooling zone (512), it is described again
The import of renewing zone (513) described in the outlet of raw heater (53), regeneration described in the outlet of the renewing zone (513)
The import of wind turbine (54).
8. drying tunnel drying system according to claim 7, which is characterized in that the outlet institute of the regeneration wind turbine (54)
State the import of the first aerial cooler (20).
9. according to claim 6-8 any one of them drying tunnel drying systems, which is characterized in that processing wind turbine (60) is further included,
The processing wind turbine (60) be arranged on the heat outlet of first gas-gas heat exchanger (10) and the exhaust emission device into
Between gas port.
10. according to claim 6-8 any one of them drying tunnel drying systems, which is characterized in that first aerial cooler
(20) and the second aerial cooler (40) be recirculated water aerial cooler, the circulating water temperature of second aerial cooler (40)
Less than the circulating water temperature of first aerial cooler (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711380900.3A CN108079744A (en) | 2017-12-20 | 2017-12-20 | A kind of organic solvent recovery device and drying tunnel drying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711380900.3A CN108079744A (en) | 2017-12-20 | 2017-12-20 | A kind of organic solvent recovery device and drying tunnel drying system |
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| Publication Number | Publication Date |
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| CN108079744A true CN108079744A (en) | 2018-05-29 |
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| CN201711380900.3A Pending CN108079744A (en) | 2017-12-20 | 2017-12-20 | A kind of organic solvent recovery device and drying tunnel drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113930602A (en) * | 2021-10-15 | 2022-01-14 | 广州黑马科技有限公司 | Annealing stove waste heat utilization and air purification system |
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| EP0124997B1 (en) * | 1983-04-01 | 1988-10-26 | The BOC Group, Inc. | Method of recovering solvent vapour |
| JP5303143B2 (en) * | 2007-12-04 | 2013-10-02 | 伸和コントロールズ株式会社 | How to prepare clean room exhaust to ultra high purity air |
| CN103668489A (en) * | 2013-12-23 | 2014-03-26 | 马军 | Dry spinning organic solvent recovery and nitrogen recycling technology and device |
| CN107051100A (en) * | 2015-11-24 | 2017-08-18 | 株式会社西部技研 | Drying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0124997B1 (en) * | 1983-04-01 | 1988-10-26 | The BOC Group, Inc. | Method of recovering solvent vapour |
| JP5303143B2 (en) * | 2007-12-04 | 2013-10-02 | 伸和コントロールズ株式会社 | How to prepare clean room exhaust to ultra high purity air |
| CN103668489A (en) * | 2013-12-23 | 2014-03-26 | 马军 | Dry spinning organic solvent recovery and nitrogen recycling technology and device |
| CN107051100A (en) * | 2015-11-24 | 2017-08-18 | 株式会社西部技研 | Drying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113930602A (en) * | 2021-10-15 | 2022-01-14 | 广州黑马科技有限公司 | Annealing stove waste heat utilization and air purification system |
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