CN209270867U - A kind of nmp solvent recovery system - Google Patents
A kind of nmp solvent recovery system Download PDFInfo
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- CN209270867U CN209270867U CN201821973140.7U CN201821973140U CN209270867U CN 209270867 U CN209270867 U CN 209270867U CN 201821973140 U CN201821973140 U CN 201821973140U CN 209270867 U CN209270867 U CN 209270867U
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- heating kettle
- nmp solvent
- pipeline
- coil pipe
- fixedly connected
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Abstract
A kind of nmp solvent recovery system, including heating kettle, the periphery of heating kettle is equipped with heater strip and insulating, the top of heating kettle is equipped with liquid injection port, gas outlet, valve is fixedly mounted in the outside of liquid injection port, gas outlet is fixedly connected with the upper port of coil pipe by pipeline, the lower port of coil pipe is fixedly connected with the upper port of liquid collecting tank by pipeline, gas vent is equipped at the top of liquid collecting tank, gas vent is fixedly connected with the air inlet of drawdown pump by pipeline, tapping valve is fixedly mounted in the lower port of liquid collecting tank, motor is fixedly mounted in the bottom side of heating kettle, the centre that the upper end of machine shaft passes through heating kettle bottom wall is fixedly connected with vertical pivot, the shaft of motor is fixedly connected with heating kettle by sealing bearing.The utility model structure is simple, is evaporated under reduced pressure by reducing the air pressure inside heating kettle to nmp solvent, reduces the boiling point of nmp solvent, so that nmp solvent is distilled vaporization at low temperature safer.
Description
Technical field
The utility model belongs to solvent recovery unit field, specifically a kind of nmp solvent recovery system.
Background technique
Existing nmp solvent recyclable device general structure is complicated, and recovery efficiency is low, and nmp solvent boiling point is higher, needs pair
Nmp solvent is heated at high temperature, and the solute inside nmp solvent is easy to happen chemical reaction, increases the difficulty of nmp solvent recycling, and deposits
After risk, nmp solvent heating distillation, and the solute dissolved forms solid and is attached to heating kettle inner wall, after influencing nmp solvent
Continuous distillation, is unable to satisfy actual demand, still devise a kind of novel nmp solvent recovery system.
Utility model content
The utility model provides a kind of nmp solvent recovery system, to solve defect in the prior art.
The utility model is achieved by the following technical programs:
The periphery of a kind of nmp solvent recovery system, including heating kettle, heating kettle is equipped with heater strip and insulating, adds
The top of hot kettle is equipped with liquid injection port, gas outlet, and valve is fixedly mounted in the outside of liquid injection port, and gas outlet is fixedly connected with disk by pipeline
The upper port of pipe, the lower port of coil pipe are fixedly connected with the upper port of liquid collecting tank by pipeline, gas vent, row are equipped at the top of liquid collecting tank
Stomata is fixedly connected with the air inlet of drawdown pump by pipeline, and tapping valve, the bottom side of heating kettle is fixedly mounted in the lower port of liquid collecting tank
Motor is fixedly mounted, the centre that the upper end of machine shaft passes through heating kettle bottom wall is fixedly connected with vertical pivot, the shaft and heating of motor
Kettle is fixedly connected by sealing bearing, and several stirring rods, the fixed peace in the lower end of vertical pivot periphery is uniformly fixedly mounted in the periphery of vertical pivot
Symmetrical L-type floating rule is filled, the spacing between the outside and heating kettle of L-type floating rule is 0.5mm~1mm, heating kettle
Bottom side opens up slag-drip opening, and the bottom side screw thread of slag-drip opening installs sealing cover.
A kind of nmp solvent recovery system as described above, the middle part of the coil pipe are fixedly mounted water tank, and coil pipe is from water tank
It inside passes through, coolant liquid is filled in water tank.
Circulating pump is fixedly mounted in a kind of nmp solvent recovery system as described above, the right side of the water tank, and circulating pump is logical
It crosses pipeline to be connected to water tank, circulating pump can be such that the coolant liquid inside water tank recycles up and down.
A kind of nmp solvent recovery system as described above, the drawdown pump are vacuum oil pump.
A kind of nmp solvent recovery system as described above, the pipeline between the gas vent and drawdown pump access drying
Filter, device for drying and filtering can absorb NMP steam.
A kind of nmp solvent recovery system as described above, the pipeline between the gas outlet and coil pipe access check valve,
Check valve only allows the gas in gas outlet to enter in coil pipe.
The utility model has the advantages that: the utility model structure is simple, molten to NMP by the air pressure inside reduction heating kettle
Agent is evaporated under reduced pressure, and the boiling point of nmp solvent is reduced, make nmp solvent distill at low temperature vaporization it is safer, pass through stirring rod
Quick heating convenient for nmp solvent is stirred to nmp solvent, it can be molten by the NMP for being attached to heating kettle inner wall by floating rule
Agent is precipitated solute and wipes off, is convenient for heating kettle inner wall cleaning, can satisfy actual demand, is suitble to promote.When using the utility model,
First by nmp solvent by valve, in liquid injection port injection heating kettle, and close valve, then respectively to drawdown pump, motor plus
The heater strip of hot kettle is powered, and heater strip heats nmp solvent through the side wall of heating kettle, and motor drives stirring rod, L by vertical pivot
The rotation of type floating rule, stirring rod stir nmp solvent, nmp solvent are enable uniformly to receive the heat of heating kettle side wall, nmp solvent quilt
Quickly heating, while drawdown pump is extracted out the air inside reaction kettle by liquid collecting tank, coil pipe, gas outlet and corresponding pipeline,
Make to form negative pressure inside reaction kettle, to reduce the boiling point of nmp solvent, be vaporized convenient for nmp solvent, the nmp solvent shape after vaporization
Entered in coil pipe at high-temperature gas and under the draft of drawdown pump effect by gas outlet and corresponding pipeline, to complete NMP
The separation of solvent and its internal solute, NMP high-temperature gas are cooled into NMP liquid in coil pipe and flow into liquid collecting tank；With NMP
Solvent constantly vaporizes, and the solute in nmp solvent is constantly precipitated, and is not easy to be attached to heating kettle under the action of the rotation of L-type floating rule
Inner wall, and concentrate on the bottom of heating kettle, the solute in nmp solvent can be taken out of slag-drip opening by opening sealing cover
Out, convenient for the cleaning of heating kettle inner wall.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
A kind of nmp solvent recovery system, as shown, include heating kettle 1, the periphery of heating kettle 1 be equipped with heater strip with every
Hot insulating layer, the top of heating kettle 1 are equipped with liquid injection port 2, gas outlet 3, and valve 7, gas outlet 3 is fixedly mounted in the outside of liquid injection port 2
The upper port of coil pipe 4 is fixedly connected with by pipeline, the lower port of coil pipe 4 is fixedly connected with the upper port of liquid collecting tank 5 by pipeline, collection
Gas vent 6 is equipped at the top of flow container 5, gas vent 6 is fixedly connected with the air inlet of drawdown pump 8 by pipeline, and the lower port of liquid collecting tank 5 is solid
Dingan County fills tapping valve 9, and motor 10 is fixedly mounted in the bottom side of heating kettle 1, and the upper end of 10 shaft of motor passes through in 1 bottom wall of heating kettle
Between be fixedly connected with vertical pivot 11, the shaft of motor 10 is fixedly connected with heating kettle 1 by sealing bearing, and the periphery of vertical pivot 11 is uniformly solid
Dingan County fills several stirring rods 12, and the lower end of 12 periphery of vertical pivot is fixedly mounted symmetrical L-type floating rule 13, L-type floating rule 13 it is outer
Spacing between side and heating kettle 1 is 0.5mm~1mm, and the bottom side of heating kettle 1 opens up slag-drip opening 14, the bottom of slag-drip opening 14
Side screw thread installs sealing cover 15.The utility model structure is simple, is subtracted by reducing the air pressure inside heating kettle to nmp solvent
Pressure distillation, reduce the boiling point of nmp solvent, make nmp solvent distill at low temperature vaporize it is safer, it is molten to NMP by stirring rod
The quick heating that agent is stirred convenient for nmp solvent the nmp solvent for being attached to heating kettle inner wall can be precipitated molten by floating rule
Matter is wiped off, is convenient for heating kettle inner wall cleaning, be can satisfy actual demand, is suitble to promote.When using the utility model, first will
Nmp solvent closes valve 7 by valve 7, in 2 injection heating kettle 1 of liquid injection port, then respectively to drawdown pump 8, motor 10 plus
The heater strip of hot kettle 1 is powered, and heater strip heats nmp solvent through the side wall of heating kettle 1, and motor 10 is stirred by the drive of vertical pivot 11
Bar 12, the rotation of L-type floating rule 13 are mixed, stirring rod 12 stirs nmp solvent, nmp solvent is enable uniformly to receive the heat of 1 side wall of heating kettle
Amount, nmp solvent are rapidly heated, while drawdown pump 8 passes through liquid collecting tank 5, coil pipe 4, gas outlet 3 and corresponding pipeline for reaction kettle
Air extraction inside 1, makes to form negative pressure inside reaction kettle 1, to reduce the boiling point of nmp solvent, vaporizes convenient for nmp solvent,
Nmp solvent after vaporization forms high-temperature gas and is entered under the draft of drawdown pump 8 effect by gas outlet 3 and corresponding pipeline
In coil pipe 4, to complete the separation of nmp solvent and its internal solute, NMP high-temperature gas is cooled into NMP liquid in coil pipe 4
And it flows into liquid collecting tank 5；It is constantly vaporized with nmp solvent, the solute in nmp solvent is constantly precipitated, in the work that L-type floating rule 13 rotates
It is not easy to be attached to the inner wall of heating kettle 1 under, and concentrates on the bottom of heating kettle 1, it can be by NMP by opening sealing cover 15
Solute in solvent takes out out of slag-drip opening 14, convenient for the cleaning of 1 inner wall of heating kettle.
Specifically, coil pipe 4 is from water tank as shown, water tank 16 is fixedly mounted in the middle part of coil pipe 4 described in the present embodiment
It is passed through in 16, fills with coolant liquid in water tank 16.Coil pipe 4 is immersed in coolant liquid, and the heat transfer for absorbing coil pipe 4 is to cooling
Liquid makes coil pipe 4 keep lower temperature, and it is cooling to the liquefaction of NMP steam to be conducive to coil pipe 4.
Specifically, circulating pump 17 is logical as shown, circulating pump 17 is fixedly mounted in the right side of water tank 16 described in the present embodiment
It crosses pipeline to be connected to water tank 16, circulating pump 17 can be such that the coolant liquid inside water tank 16 recycles up and down.Avoid the cold of 4 periphery of coil pipe
But liquid stands continuous heating, influences the cooling effect of coil pipe 4.
Further, as shown, drawdown pump 8 described in the present embodiment is vacuum oil pump.Vacuum oil pump power is big, can
Make to form lower environment under low pressure in heating kettle 1.
Further, as shown, the pipeline between gas vent 6 and drawdown pump 8 described in the present embodiment accesses drying
Filter 18, device for drying and filtering 18 can absorb NMP steam.It avoids NMP steam from entering in drawdown pump 8, is influencing drawdown pump 8 just
Often work.
Further, as shown, the pipeline between gas outlet 3 and coil pipe 4 described in the present embodiment accesses check valve
19, check valve 19 only allows the gas in gas outlet 3 to enter in coil pipe 4.Gas after avoiding drawdown pump 8 from stopping working, in coil pipe 4
Body flows back into heating kettle 1, needs second distillation, causes to waste.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (6)
1. a kind of nmp solvent recovery system, it is characterised in that: including heating kettle (1), the periphery of heating kettle (1) is equipped with heater strip
With insulating, the top of heating kettle (1) is equipped with liquid injection port (2), gas outlet (3), and valve is fixedly mounted in the outside of liquid injection port (2)
Door (7), gas outlet (3) are fixedly connected with the upper port of coil pipe (4) by pipeline, and the lower port of coil pipe (4) connects by the way that pipeline is fixed
The upper port of liquid collecting tank (5) is connect, is equipped with gas vent (6) at the top of liquid collecting tank (5), gas vent (6) is fixedly connected with decompression by pipeline
The air inlet of (8) is pumped, tapping valve (9) are fixedly mounted in the lower port of liquid collecting tank (5), and motor is fixedly mounted in the bottom side of heating kettle (1)
(10), the centre that the upper end of motor (10) shaft passes through heating kettle (1) bottom wall is fixedly connected vertical pivot (11), the shaft of motor (10)
It is fixedly connected with heating kettle (1) by sealing bearing, several stirring rods (12), vertical pivot is uniformly fixedly mounted in the periphery of vertical pivot (11)
(11) symmetrical L-type floating rule (13) is fixedly mounted in the lower end of periphery, between the outside and heating kettle (1) of L-type floating rule (13)
Spacing be 0.5mm~1mm, the bottom side of heating kettle (1) opens up slag-drip opening (14), the bottom side screw thread installation of slag-drip opening (14)
Sealing cover (15).
2. a kind of nmp solvent recovery system according to claim 1, it is characterised in that: the middle part of the coil pipe (4) is solid
Dingan County fills water tank (16), and coil pipe (4) is passed through out of water tank (16), fills with coolant liquid in water tank (16).
3. a kind of nmp solvent recovery system according to claim 2, it is characterised in that: the right side of the water tank (16)
It is fixedly mounted circulating pump (17), circulating pump (17) is connected to by pipeline with water tank (16), and circulating pump (17) can make water tank (16)
Internal coolant liquid recycles up and down.
4. a kind of nmp solvent recovery system according to claim 1, it is characterised in that: the drawdown pump (8) is vacuum
Oil pump.
5. a kind of nmp solvent recovery system according to claim 1, it is characterised in that: the gas vent (6) and decompression
The pipeline pumped between (8) accesses device for drying and filtering (18), and device for drying and filtering (18) can absorb NMP steam.
6. a kind of nmp solvent recovery system according to claim 1, it is characterised in that: the gas outlet (3) and coil pipe
(4) pipeline between accesses check valve (19), and check valve (19) only allows the gas in gas outlet (3) to enter in coil pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973140.7U CN209270867U (en) | 2018-11-28 | 2018-11-28 | A kind of nmp solvent recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973140.7U CN209270867U (en) | 2018-11-28 | 2018-11-28 | A kind of nmp solvent recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209270867U true CN209270867U (en) | 2019-08-20 |
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ID=67608767
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821973140.7U Active CN209270867U (en) | 2018-11-28 | 2018-11-28 | A kind of nmp solvent recovery system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110833700A (en) * | 2019-11-23 | 2020-02-25 | 湖南朝露生物科技有限公司 | Vacuum low-temperature distillation equipment |
| CN110917642A (en) * | 2019-12-16 | 2020-03-27 | 江西辙炜新材料科技有限公司 | Environment-friendly multifunctional solvent recovery processing device |
| CN113058281A (en) * | 2021-03-08 | 2021-07-02 | 山东隆信药业有限公司 | Novel concentrated methanol recovery mechanism for methanol regeneration |
| CN113350874A (en) * | 2021-04-24 | 2021-09-07 | 杭州国泰环保科技股份有限公司 | Mill uses NMP recovery processing apparatus |
-
2018
- 2018-11-28 CN CN201821973140.7U patent/CN209270867U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110833700A (en) * | 2019-11-23 | 2020-02-25 | 湖南朝露生物科技有限公司 | Vacuum low-temperature distillation equipment |
| CN110917642A (en) * | 2019-12-16 | 2020-03-27 | 江西辙炜新材料科技有限公司 | Environment-friendly multifunctional solvent recovery processing device |
| CN113058281A (en) * | 2021-03-08 | 2021-07-02 | 山东隆信药业有限公司 | Novel concentrated methanol recovery mechanism for methanol regeneration |
| CN113350874A (en) * | 2021-04-24 | 2021-09-07 | 杭州国泰环保科技股份有限公司 | Mill uses NMP recovery processing apparatus |
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