CN212119585U - Organic solution's purification system - Google Patents
Organic solution's purification system Download PDFInfo
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- CN212119585U CN212119585U CN202020287690.4U CN202020287690U CN212119585U CN 212119585 U CN212119585 U CN 212119585U CN 202020287690 U CN202020287690 U CN 202020287690U CN 212119585 U CN212119585 U CN 212119585U
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Abstract
The utility model provides a purification system of organic solution, which comprises an organic nanofiltration unit and a gasification evaporation unit; the organic nanofiltration unit comprises an organic nanofiltration membrane component, and the gasification evaporation unit comprises a heating device and a gasification evaporation membrane component which are connected in sequence. The utility model organically integrates the organic nanofiltration technology and the gasification evaporation membrane technology, and effectively removes macromolecular particles and water in the organic solution; the organic nanofiltration membrane technology is adopted to remove macromolecular particles and metal ions in the organic solution, and then the water in the organic solution is further removed by the gasification evaporation membrane technology.
Description
Technical Field
The utility model belongs to the technical field of the separation and purification, a organic solution's purification system is related to, especially relate to an organic solution purification system based on membrane separation technique.
Background
In the production of electronic products, large amounts of highly pure organic solutions are used. For example, PGMEA is used as a photoresist stripping liquid in the production of flat panel displays, and NMP is used as an adhesive in the production of lithium batteries. These solvents, after use, contain macromolecular particulate matter impurities and moisture impurities. At present, the purification is carried out by adopting a rectification mode for reuse. The rectification process has the defects of high operation temperature, phase change, high energy consumption, high safety risk and the like. The utility model discloses a membrane separation's technique effectively gets rid of macromolecule granule and moisture in the organic solution. The membrane separation technology has no phase change, normal temperature operation, low energy consumption, high safety factor and convenient modularization integration and amplification.
CN110449031A discloses a device for separating organic liquid impurities, which comprises a raw material storage tank, a buffer tank, a feed pump and membrane separation equipment which are connected in sequence through pipelines; wherein, the raw material storage tank is used for storing organic liquid to be separated; the buffer tank is used for directly forming the organic liquid to be separated into feed liquid or adding organic solution to dilute the organic liquid to be separated into the feed liquid; the feeding pump is used for adjusting the temperature and pressure of feeding liquid according to the size and flow of the organic nanofiltration membrane in the membrane separation equipment to form membrane feeding liquid; the membrane separation equipment is provided with an organic nanofiltration membrane for separating and purifying the membrane feeding liquid and forming trapped fluid and penetrating fluid.
CN202387237U discloses a purification regeneration useless organic solution device, including flowmeter, microfiltration, pre-heater, film evaporator, conduction oil heater, waste material jar, cooler, net organic solution jar, vacuum system, vacuum buffer tank. The pipeline is arranged at the front end of the flowmeter, and the flange is connected with the pipeline in front of the lower part of the precision filter; a flange is arranged right in front of the heat conducting oil heater and connected with the upper front of the preheater, and the rear end of the flange is connected with the right in front of the thin film evaporator; the rear upper part of the cooler is connected with the upper rear part of the preheater; the lower rear part of the heat conducting oil heater is connected with the rear lower part of the thin film evaporator; the front upper part of the film evaporator is connected with the front lower part of the heat conducting oil heater; the lower rear part of the cooler is connected with the upper front part of the clean organic solution tank; the cooling water inlet pipe is connected with the upper front part of the cooler, and the lower rear part of the cooler is connected with the cooling water outlet pipe; the right lower part of the thin film evaporator is connected with the upper front part of the waste material tank, and the upper rear part of the waste material tank is connected with the lower rear part of the thin film evaporator; the vacuum system is connected with the upper and the rear parts of the clean organic solution tank and the waste material tank.
CN109432874A discloses a purification and recovery device for organic solution, which comprises a separation unit and a dehydration unit; the separation unit comprises a stock solution storage device, a filter, a low-boiling-point solvent separator, a high-boiling-point substance and residue separator and an ion exchange device which are connected in sequence; the dehydration unit comprises a dehydration membrane device and a deep dehydration device which are connected in sequence.
However, a single organic solution purification method cannot purify an organic solvent with complex components and high water content, so that a new purification system is urgently needed to be designed to deal with the organic solution with complex components and high water content.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a purification system of organic solution, which organically integrates the organic nanofiltration technology and the gasification evaporation membrane technology, and effectively removes macromolecular particles and water in the organic solution; the organic nanofiltration membrane technology is adopted to remove macromolecular particles and metal ions in the organic solution, and then the water in the organic solution is further removed by the gasification evaporation membrane technology.
To achieve the purpose, the utility model adopts the following technical proposal:
in one embodiment, the present invention provides a purification system for organic solution, the purification system comprising an organic nanofiltration unit and a gasification evaporation unit.
The organic nanofiltration unit comprises an organic nanofiltration membrane component, and the gasification evaporation unit comprises a heating device and a gasification evaporation membrane component which are connected in sequence.
The utility model organically integrates the organic nanofiltration technology and the gasification evaporation membrane technology, and effectively removes macromolecular particles and water in the organic solution; the organic nanofiltration membrane technology is adopted to remove macromolecular particles and metal ions in the organic solution, and then the water in the organic solution is further removed by the gasification evaporation membrane technology.
As an optimal technical scheme of the utility model, organic nanofiltration unit along the feed flow direction including the raw materials storage tank that connects gradually and organic nanofiltration membrane subassembly.
And a flow control valve, a raw material liquid conveying device and a filtering device are sequentially arranged on a connecting pipeline between the raw material storage tank and the organic nanofiltration membrane component.
Preferably, the outlet of the raw material liquid conveying device is divided into two paths, one path is connected with the raw material storage tank through a feeding return pipeline, and the other path is connected with the filtering device.
And a safety valve is arranged on the feeding return pipeline.
As an optimal technical scheme, the liquid export that holds back of organic nanofiltration membrane module connect the raw materials storage tank through holding back liquid return line, the liquid that holds back that obtains is filtered through organic nanofiltration membrane module flows back to raw materials storage tank loop filter.
The trapped liquid return pipeline is provided with a needle valve, a heat exchange device and a flowmeter in sequence along the flow direction of the trapped liquid.
As an optimized technical scheme of the utility model, the filtrate export of organic nanofiltration membrane component divide into two the tunnel, one way is through drainage tube coupling gasification evaporation unit, another way is through filtrate return line connection raw materials storage tank.
And flow valves which are independently controlled are arranged on the liquid discharge pipeline and the filtrate return pipeline.
As an optimized technical scheme, the organic nanofiltration unit and the gasification evaporation unit are provided with a buffer device therebetween, and the filtered liquid filtered out after the organic nanofiltration unit is treated enters the gasification evaporation unit through the buffer device.
As a preferable technical proposal of the utility model, the gasification evaporation unit comprises a heating device, a gasification evaporation membrane component and a condensing device which are connected in sequence along the feeding flow direction; and the process front end of the heating device is connected with the buffer device along the feeding direction.
As an optimal technical scheme, the connecting pipeline between buffer and the heating device along the feeding flow direction has set gradually feeding liquid conveyor and preheating device.
As an optimal technical scheme, preheating device inside include feed liquid passageway and preheat the medium passageway, the residual liquid exit linkage of gasification evaporation membrane subassembly preheat the medium passageway entry, gasification evaporation membrane subassembly filter the back exhaust residual liquid and get into preheating the medium passageway, with the feed liquid heat transfer that flows in feed liquid passageway.
As an optimized technical proposal of the utility model, the gasification evaporation unit also comprises a cooling device connected with the outlet of the preheating medium channel, and the residual seepage liquid after heat exchange with the feeding liquid is discharged from the preheating device and enters the cooling device.
Along the feed flow direction, the condensing unit is also connected with a penetrating fluid buffer tank and a vacuumizing device in sequence.
Adopt the utility model provides a purification system purifies organic solution, the purification method include:
(1) sequentially conveying the organic solution with the temperature of 20-40 ℃ stored in the raw material storage tank into an organic nanofiltration membrane component through a raw material liquid conveying device and a filtering device at the flow rate of 120-140L/h for nanofiltration operation, and removing macromolecular particulate matters and metal ions in the organic solution to obtain a filtrate and a trapped liquid; wherein, the filtrate enters a gasification evaporation unit through a buffer device, and the trapped fluid is cooled by a heat exchange device and then flows back to a raw material storage tank for circular filtration;
(2) the filtrate stored in the buffer device is used as a feed liquid of a rear-end gasification evaporation unit, the water content in the feed is 20-50 wt%, the feed liquid is conveyed into a preheating device through a feed liquid conveying device, and the feed liquid exchanges heat with the residual liquid discharged by the gasification evaporation membrane assembly in the preheating device and is heated to 85-95 ℃;
(3) feeding the heat-exchanged feed liquid into a heating device, heating at a heating rate of 30-60 ℃/h to 120-130 ℃, feeding into a gasification evaporation membrane assembly, vacuumizing the system by a vacuumizing device, and performing pervaporation on the feed liquid in the gasification evaporation membrane assembly under a vacuum degree of 2-10 kPa to obtain a residual liquid and a penetrating liquid;
(4) and (3) refluxing the residual liquid to a preheating device to exchange heat with the feed liquid in a circulating manner, cooling the residual liquid after heat exchange by a cooling device to obtain a high-purity solvent, carrying out heat exchange and condensation on the penetrating liquid and cooling water at 6-10 ℃ in a condensing device to obtain condensed water, and collecting and storing the condensed water by a penetrating liquid buffer tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model organically integrates the organic nanofiltration technology and the gasification evaporation membrane technology, and effectively removes macromolecular particles and water in the organic solution; the organic nanofiltration membrane technology is adopted to remove macromolecular particles and metal ions in the organic solution, and then the water in the organic solution is further removed by the gasification evaporation membrane technology.
Drawings
Fig. 1 is a schematic structural diagram of an organic nanofiltration unit provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a gasification evaporation unit according to an embodiment of the present invention;
wherein, 1-a raw material storage tank; 2-a flow control valve; 3-raw material liquid conveying device; 4-a filtration device; 5-an organic nanofiltration membrane module; 6-needle valve; 7-a heat exchange device; 8-a flow meter; 9-safety valve; 10-a first flow valve; 11-a second flow valve; 12-a buffer device; 13-a feed liquid conveying device; 14-a cooling device; 15-a preheating device; 16-a heating device; 17-a gasification evaporation membrane module; 18-a condensing unit; 19-permeate buffer tank; and 20-vacuumizing device.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In one embodiment, the present invention provides a purification system for organic solution, the purification system comprising an organic nanofiltration unit and a gasification evaporation unit. The organic nanofiltration unit is shown in fig. 1 and comprises an organic nanofiltration membrane component 5, and the gasification evaporation unit is shown in fig. 2 and comprises a heating device 16 and a gasification evaporation membrane component 17 which are connected in sequence.
Specifically, the organic nanofiltration unit comprises a raw material storage tank 1 and an organic nanofiltration membrane component 5 which are sequentially connected in the feed flow direction, and a flow control valve 2, a raw material liquid conveying device 3 and a filtering device 4 are sequentially arranged on a connecting pipeline between the raw material storage tank 1 and the organic nanofiltration membrane component 5, as shown in fig. 1. The outlet of the raw material liquid conveying device 3 is divided into two paths, one path is connected with the raw material storage tank 1 through a feeding return pipeline, the other path is connected with the filtering device 4, and the feeding return pipeline is provided with a safety valve 9. The trapped liquid outlet of the organic nanofiltration membrane component 5 is connected with the raw material storage tank 1 through a trapped liquid return pipeline, and the trapped liquid obtained by filtering through the organic nanofiltration membrane component 5 flows back to the raw material storage tank 1 for circular filtration. The trapped liquid return pipeline is sequentially provided with a needle valve 6, a heat exchange device 7 and a flowmeter 8 along the flow direction of the trapped liquid. The filtrate outlet of the organic nanofiltration membrane component 5 is divided into two paths, one path is connected with the gasification and evaporation unit at the rear end through a liquid discharge pipeline, and the other path is connected with the raw material storage tank 1 through a filtrate return pipeline. The filtrate return line is provided with a first flow valve 10, and the drain line is provided with a second flow valve 11.
A buffer device 12 is also arranged between the organic nanofiltration unit and the gasification evaporation unit, and the filtered liquid treated by the organic nanofiltration unit enters the gasification evaporation unit through the buffer device 12.
The gasification and evaporation unit comprises a heating device 16, a gasification and evaporation membrane assembly 17 and a condensing device 18 which are connected in sequence along the feed flow direction as shown in fig. 2. The process front end of the heating device 16 is connected to the buffer device 12 in the feed direction. A feeding liquid conveying device 13 and a preheating device 15 are sequentially arranged on a connecting pipeline between the buffer device 12 and the heating device 16 along the feeding flow direction. The interior of the preheating device 15 comprises a feed liquid channel and a preheating medium channel, a residual liquid outlet of the gasification evaporation membrane assembly 17 is connected with an inlet of the preheating medium channel, and residual liquid discharged after being filtered by the gasification evaporation membrane assembly 17 enters the preheating medium channel to exchange heat with feed liquid flowing into the feed liquid channel. The gasification evaporation unit also comprises a cooling device 14 connected with the outlet of the preheating medium channel, and the residual liquid after heat exchange with the feed liquid is discharged from the preheating device 15 and enters the cooling device 14. The condensing unit 18 is also connected in series with a permeate buffer tank 19 and a vacuum extractor 20 in the feed flow direction.
The process flow of the purification system provided by the above specific embodiment includes the following steps:
(1) organic solution with the temperature of 20-40 ℃ stored in the raw material storage tank 1 is sequentially sent into an organic nanofiltration membrane component 5 through a raw material liquid conveying device 3 and a filtering device 4 at the flow rate of 120-140L/h for nanofiltration operation, macromolecular particulate matters and metal ions in the organic solution are removed, and filtrate and trapped liquid are obtained; wherein, the filtrate enters the gasification evaporation unit through the buffer device 12, and the trapped fluid is cooled by the heat exchange device 7 and then flows back to the raw material storage tank 1 for circular filtration;
(2) the filtrate stored in the buffer device 12 is used as a feed liquid of a rear-end gasification evaporation unit, the water content in the feed is 20-50 wt%, the feed liquid is conveyed into a preheating device 15 through a feed liquid conveying device 13, and the feed liquid exchanges heat with the residual liquid discharged by a gasification evaporation membrane assembly 17 in the preheating device 15 and is heated to 85-95 ℃;
(3) feeding the heat-exchanged feed liquid into a heating device 16, heating the feed liquid to 120-130 ℃ at a heating rate of 30-60 ℃/h, feeding the feed liquid into a gasification evaporation membrane assembly 17, vacuumizing the system by a vacuumizing device 20, and performing pervaporation on the feed liquid in the gasification evaporation membrane assembly 17 under a vacuum degree of 2-10 kPa to obtain a residual liquid and a penetrating liquid;
(4) and the residual seepage liquid flows back to the preheating device 15 to exchange heat with the feed liquid in a circulating way, the residual seepage liquid after heat exchange is cooled by the cooling device 14 to obtain a high-purity solvent, the penetrating liquid exchanges heat with cooling water at 6-10 ℃ in the condensing device 18 to be condensed, and condensed water is collected and stored by the penetrating liquid buffer tank 19.
Claims (10)
1. The purification system of the organic solution is characterized by comprising an organic nanofiltration unit and a gasification evaporation unit;
the organic nanofiltration unit comprises an organic nanofiltration membrane component, and the gasification evaporation unit comprises a heating device and a gasification evaporation membrane component which are connected in sequence.
2. The purification system of claim 1, wherein the organic nanofiltration unit comprises a feed storage tank and an organic nanofiltration membrane module connected in series along a feed flow direction;
and a flow control valve, a raw material liquid conveying device and a filtering device are sequentially arranged on a connecting pipeline between the raw material storage tank and the organic nanofiltration membrane component.
3. The purification system of claim 2, wherein the outlet of the feed liquid delivery device is divided into two paths, one path is connected to the feed storage tank through the feed return line, and the other path is connected to the filtering device;
and a safety valve is arranged on the feeding return pipeline.
4. The purification system of claim 3, wherein a retentate outlet of the organic nanofiltration membrane module is connected with the raw material storage tank through a retentate return line, and a retentate obtained by filtering through the organic nanofiltration membrane module flows back to the raw material storage tank for circular filtration;
the trapped liquid return pipeline is provided with a needle valve, a heat exchange device and a flowmeter in sequence along the flow direction of the trapped liquid.
5. The purification system of claim 4, wherein the filtrate outlet of the organic nanofiltration membrane module is divided into two paths, one path is connected with the gasification evaporation unit through a liquid discharge pipeline, and the other path is connected with the raw material storage tank through a filtrate return pipeline;
and flow valves which are independently controlled are arranged on the liquid discharge pipeline and the filtrate return pipeline.
6. The purification system of claim 5, wherein a buffer device is further disposed between the organic nanofiltration unit and the gasification evaporation unit, and the filtered liquid treated by the organic nanofiltration unit enters the gasification evaporation unit through the buffer device.
7. The purification system of claim 6, wherein the vaporization evaporation unit comprises a heating device, a vaporization evaporation membrane module and a condensing device connected in series along a feed flow direction; and the process front end of the heating device is connected with the buffer device along the feeding direction.
8. The purifying system of claim 7, wherein the connecting pipeline between the buffer device and the heating device is provided with a feeding liquid conveying device and a preheating device in sequence along the feeding flow direction.
9. The purification system of claim 8, wherein the preheating device comprises a feed liquid channel and a preheating medium channel, the retentate outlet of the gasification evaporation membrane module is connected to the inlet of the preheating medium channel, and the retentate discharged from the gasification evaporation membrane module after filtration enters the preheating medium channel to exchange heat with the feed liquid flowing into the feed liquid channel.
10. The purification system of claim 9, wherein the vaporization evaporation unit further comprises a cooling device connected to the outlet of the preheating medium channel, and the retentate after heat exchange with the feed liquid is discharged from the preheating device into the cooling device;
along the feed flow direction, the condensing unit is also connected with a penetrating fluid buffer tank and a vacuumizing device in sequence.
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| CN202020287690.4U CN212119585U (en) | 2020-03-10 | 2020-03-10 | Organic solution's purification system |
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| CN202020287690.4U CN212119585U (en) | 2020-03-10 | 2020-03-10 | Organic solution's purification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620385A (en) * | 2021-09-06 | 2021-11-09 | 苏州晶洲装备科技有限公司 | Organic waste liquid treatment device |
| WO2024000828A1 (en) * | 2022-06-30 | 2024-01-04 | 福建天甫电子材料有限公司 | Automatic batching system for production of photoresist stripping liquid, and batching method therefor |
-
2020
- 2020-03-10 CN CN202020287690.4U patent/CN212119585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620385A (en) * | 2021-09-06 | 2021-11-09 | 苏州晶洲装备科技有限公司 | Organic waste liquid treatment device |
| WO2024000828A1 (en) * | 2022-06-30 | 2024-01-04 | 福建天甫电子材料有限公司 | Automatic batching system for production of photoresist stripping liquid, and batching method therefor |
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