CN111170387B - Drawer type split water organic solvent evaporation device - Google Patents

Drawer type split water organic solvent evaporation device Download PDF

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CN111170387B
CN111170387B CN201811344532.1A CN201811344532A CN111170387B CN 111170387 B CN111170387 B CN 111170387B CN 201811344532 A CN201811344532 A CN 201811344532A CN 111170387 B CN111170387 B CN 111170387B
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gas
liquid
hot gas
cavity
organic solvent
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CN111170387A (en
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周志彩
贾丽丽
郑繁慧
王萍
刘君
宋禹
梁艳平
徐阳
王明立
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SHANGHAI JINGFENG PHARMACEUTICAL CO Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
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  • Organic Chemistry (AREA)

Abstract

The invention provides a drawer type split water organic solvent evaporation device which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises at least one slot and a hot gas injection assembly capable of being inserted into the slot, and the outer wall of the hot gas injection assembly comprises a hydrophobic micropore material. The device increases the contact area of the organic solvent in water and hot gas, and realizes the rapid evaporation of the organic solvent in water. The contact area of the device is increased, so that the volume of the equipment is reduced under the condition of the same evaporation capacity; meanwhile, under the condition of using inert gas, the safety problem caused by evaporation is reduced. The device adopts split type double-cavity structure, through forcing liquid behind the gas-liquid mixing chamber, just can get into the design in gaseous volatile chamber, has avoided the inhomogeneous problem of partial liquid gas-liquid mixture that probably exists in the integral type structure.

Description

Drawer type split water organic solvent evaporation device
Technical Field
The invention belongs to the field of chemical devices, relates to an organic solvent evaporation device, particularly relates to an evaporation device for an organic solvent in water, and particularly relates to a drawer type split evaporation device for the organic solvent in water.
Background
At present, most methods for removing organic solvents in water are rectification, pervaporation or rotary evaporation and the like, and although the methods are simple to operate, the methods are limited in heating area, so that the heat transfer speed is limited, and the separation efficiency is relatively low. The energy consumption of rectification is high, and the equipment volume is large; pervaporation requires a high membrane and is limited by the content of organic solvents in water; rotary evaporation is often limited to small scale laboratory experiments and is not suitable for large scale production.
CN 204619399U discloses a solvent evaporation plant of food contact material test extract product, the device includes water bath, cylindricality section of thick bamboo support, evaporating dish, set up a plurality of heating pot groove in the water bath, cylindricality section of thick bamboo support is fixed in the heating pot inslot, and places the evaporating dish in the upper end that cylindricality section of thick bamboo held in the palm, holds in the palm at the cylindricality section of thick bamboo and leans on setting up a plurality of water through-hole on the section of thick bamboo wall surface of tip down, the lid is connected to the ware mouth department of evaporating dish. The device adopts the normal hexane solvent in the indirect heating evaporation ware of steam, has replaced the mode of the solvent in the direct heating evaporation ware in the past, has avoided the contact pollution of evaporation ware direct heating, and causes the detection error when gravimetric method calculates, has improved the accuracy of testing result. However, the device cannot be scaled up for use and is limited to evaporation of only a single organic solvent.
CN 201988195U discloses a bottom heating type solvent evaporation device for solvent type pressure sensitive adhesive, which mainly comprises an evaporation kettle, a condensing device, a solvent recovery tank, a heating device and a stirrer, wherein the inner cavity of the evaporation kettle is sealed, the top of the evaporation kettle is communicated with the condensing device through a pipeline, and a cooling liquid outlet of the condensing device is communicated with the solvent recovery tank through a pipeline; the heating device is arranged at the bottom of the evaporation kettle, and the stirrer is arranged in the evaporation kettle; and an air supply device is arranged at the upper part of the evaporation kettle. The device completely removes and recovers the solvents (toluene and ethyl acetate) after the pressure-sensitive adhesive polymerization in a closed environment, and the recovery rate is up to more than 99.9 percent, thereby reducing the overall cost of the adhesive and avoiding environmental pollution. However, the device is limited to the separation of organic-organic systems and is not suitable for the separation of water-organic systems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a drawer type water organic solvent evaporation device, which increases the contact area of an organic solvent in water and hot gas and realizes the rapid evaporation of the organic solvent in water. The contact area of the device is increased, so that the volume of the equipment is reduced under the condition of the same evaporation capacity; meanwhile, under the condition of using inert gas, the safety problem caused by evaporation is reduced. The device adopts split type double-cavity structure, through forcing liquid behind the gas-liquid mixing chamber, just can get into the design in gaseous volatile chamber, has avoided the inhomogeneous problem of partial liquid gas-liquid mixture that probably exists in the integral type structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a drawer type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises at least one slot and a hot gas injection assembly capable of being inserted into the slot, the outer wall of the hot gas injection assembly comprises a hydrophobic micropore material, the hot gas injection assembly is provided with at least one hot gas inlet, the corresponding part of the slot and the outer wall of the hydrophobic micropore material of the hot gas injection assembly is a hollow or hydrophobic micropore material, the bottom end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid outlet, the bottom end of the side wall of the gas volatilization cavity is provided with at least one second liquid inlet, and the top end of the side wall of the gas volatilization cavity is provided with at least one second liquid outlet, the gas volatilization cavity is arranged above the second liquid outlet and is provided with at least one hot gas outlet, and the gas-liquid mixing cavity and the gas volatilization cavity are connected with the first liquid outlet and the second liquid inlet.
In a preferred embodiment of the present invention, the insertion groove partially or entirely penetrates the gas-liquid mixing chamber.
As a preferable technical scheme of the invention, a partition plate is arranged in the gas-liquid mixing cavity.
As a preferred technical scheme of the invention, the hot gas injection assembly comprises a base.
Preferably, the hot gas inlet is provided in the base.
Preferably, the base and the socket contact portion are provided with a sealing assembly.
Preferably, the sealing assembly is a sealing ring.
As the preferred technical scheme of the invention, the hydrophobic microporous material comprises a microporous filter membrane and/or microporous ceramic, preferably a microporous filter membrane;
preferably, the microfiltration membrane comprises a tetrafluoroethylene microfiltration membrane and/or a polyvinylidene fluoride microfiltration membrane.
In a preferred embodiment of the present invention, the microporous filter membrane includes any one of a flat plate, a composite flat plate, a tubular membrane, and a spiral tubular membrane.
As a preferred embodiment of the present invention, the first liquid outlet is located higher than the first liquid inlet;
preferably, the second liquid outlet is located at a higher level than the second liquid inlet.
In a preferred embodiment of the present invention, the hot gas outlet is provided with a vacuum device and a solvent cooling and recovering device.
As a preferable technical scheme of the invention, the evaporation devices of the organic solvent in water can be connected in series or in parallel.
In a preferred embodiment of the present invention, the hot gas comprises any one or a combination of at least two of heated nitrogen, helium, argon, or neon.
Compared with the prior art, the invention at least has the following beneficial effects:
(1) one of the purposes of the invention is to provide an evaporation device for organic solvent in water, which increases the contact area of the organic solvent in water and hot gas, improves the separation rate of the water and the organic solvent, and realizes the rapid evaporation of the organic solvent in water;
(2) one of the purposes of the invention is to provide a drawer type split water organic solvent evaporation device, which increases the heat transfer area of hot gas and liquid, so that the equipment volume is smaller under the condition of the same evaporation capacity;
(3) the invention aims to provide a drawer type split water organic solvent evaporation device, which can use inert gas as a heat transfer medium to reduce the safety problem caused by evaporation;
(4) one of the purposes of the invention is to provide a drawer type split water organic solvent evaporation device, which adopts a drawer type design, can change the contact area by disassembling and assembling a hot gas injection assembly, can select different hot gas injection assemblies according to the properties of the treated water and the organic solvent, and is convenient for replacing hydrophobic micropore materials in the hot gas injection assemblies;
(5) one of the purposes of the invention is to provide a drawer type split water organic solvent evaporation device, which adopts a split type double-cavity structure, and avoids the problem of uneven gas-liquid mixing of partial liquid possibly existing in an integrated structure by the design that liquid can enter a gas volatilization cavity only after being forced to pass through a gas-liquid mixing cavity.
Drawings
Fig. 1 is a schematic structural diagram of a drawer-type split water-in-water organic solvent evaporation device provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a drawer-type split water organic solvent evaporation device provided in embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a drawer-type split water-in-water organic solvent evaporation device provided in embodiment 3 of the present invention;
fig. 4 is a schematic structural diagram of a drawer-type split water-in-water organic solvent evaporation device provided in embodiment 4 of the present invention;
in the figure: 1-gas-liquid mixing cavity, 11-first liquid inlet, 12-first liquid outlet, 2-gas volatilization cavity, 21-second liquid inlet, 22-second liquid outlet, 3-hot gas inlet, 4-hot gas outlet, 5-slot, 6-hot gas injection assembly, 61-base, 62-hydrophobic microporous material outer wall and 7-partition plate.
The present invention is described in further detail below. The following examples are merely illustrative of the present invention and do not represent or limit the scope of the claims, which are defined by the claims.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The invention provides a drawer-type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises at least one slot and a hot gas injection assembly capable of being inserted into the slot, the outer wall of the hot gas injection assembly comprises a hydrophobic micropore material, the hot gas injection assembly is provided with at least one hot gas inlet, the corresponding part of the slot and the outer wall of the hydrophobic micropore material of the hot gas injection assembly is hollow or the hydrophobic micropore material, the bottom end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid outlet, the bottom end of the side wall of the gas volatilization cavity is provided with at least one second liquid inlet, and the top end of the side wall of the gas volatilization cavity is provided with at least one second liquid outlet, the gas volatilization cavity is arranged above the second liquid outlet and is provided with at least one hot gas outlet, and the gas-liquid mixing cavity and the gas volatilization cavity are connected with the first liquid outlet and the second liquid inlet.
The conventional solvent evaporation apparatus in water has a heat source contacting only the periphery of water, so that it is required to control the flow rate of water in a low range and a long heat transfer time is required to ensure that the organic solvent in water can be sufficiently heated and evaporated. According to the invention, a drawer type split design is adopted, hot gas enters water through the hydrophobic microporous material on the hot gas injection assembly in the slot, the water cannot enter the pores of the hydrophobic microporous material due to the hydrophobicity and the extremely small pore diameter, the hot gas can enter the water through the micropores, micro bubbles are formed in the liquid, the heat transfer area between a heat source and the water is increased, the water can be uniformly and rapidly heated, the evaporation rate of an organic solvent in the water is increased, the gasified organic solvent can be taken out of a water phase when the hot gas is removed from the water, the evaporation efficiency of the organic solvent is further accelerated, and secondary dissolution of the organic solvent is also avoided.
In the invention, the gas-liquid mixing cavity and the gas volatilization cavity are connected through the first liquid outlet and the second liquid inlet, namely, the liquid outlet of the gas-liquid mixing cavity is connected with the liquid inlet of the gas volatilization cavity, the gas-liquid mixing cavity and the gas volatilization cavity are generally connected by adopting a pipeline, the pipeline can be a metal pipeline, a rubber pipeline or a plastic pipeline, and the length of the pipeline can be properly adjusted according to actual needs, and no specific limitation is made herein.
In the present invention, the slots may be distributed on the gas-liquid mixing chamber in any manner, such as parallel distribution, vertical distribution, diagonal distribution, star distribution, or dot distribution, and the like, and may also be irregularly distributed, so that the distribution manner of the slots is not particularly limited in the present invention.
In the present invention, the hot gas injection assembly should have the same shape as the socket, the hot gas injection assembly may have a cylindrical shape, an elliptic cylindrical shape, a polygonal cylindrical shape, or the like, and the cross section of the hot gas injection assembly may have any one of a circle, an elliptic shape, or a polygonal shape (a triangle, a rectangle, a pentagon, a hexagon, or the like), or a combined pattern of at least two patterns. Because the hot gas injection assembly comprises the base, the base can be in an independent shape, for example, the base is rectangular, other parts of the hot gas injection assembly connected with the base can be cylindrical, the inlet of the slot is rectangular at the moment, and the part of the slot entering the gas-liquid mixing cavity is cylindrical. In order to avoid hot gas leakage, a sealing component is arranged on a contact part of the base of the hot gas injection component and the insertion groove, the sealing component can be a sealing ring, and sealant can be coated at the inlet of the insertion groove.
In the invention, the gas-liquid mixing cavity can be internally provided with a clapboard which divides the gas-liquid mixing cavity into a plurality of semi-closed cavities, each semi-closed cavity can be provided with at least one hot gas injection assembly, and the existence of the clapboard can force the flowing direction of liquid, ensure the contact uniformity of the liquid and gas and prevent the phenomenon of non-uniform volatilization.
In the invention, the hot gas injection assembly is provided with at least one hot gas inlet, and a plurality of hot gas inlets can be simultaneously arranged in order to increase the speed of the hot gas entering the device; because the hot gas body can rise spontaneously, flow to the eminence from the low promptly, consequently set up at least one hot gas outlet in device cavity top region, in order to guarantee that gasification organic solvent and hot-air can be quick disengaging device, avoid gasification organic solvent secondary to dissolve, can set up a plurality of hot gas outlets simultaneously.
In the invention, each gas outlet can be provided with a vacuum device and a solvent cooling and recovering device, the vacuum device can enable hot gas and gasified organic solvent to be separated from the device cavity rapidly, and the cooling and recovering device can enable the gasified organic solvent to be liquefied rapidly, so that the recovery of the organic solvent is facilitated, the vapor pressure of the organic solvent at the hot gas outlet can be reduced, and the evaporation of the organic solvent is facilitated.
In the invention, the device adopts a drawer type design, the contact area can be changed by dismounting the hot gas injection assembly, the contact area can be changed by replacing the hot gas injection assembly containing hydrophobic micropore materials with an insertion assembly with the same shape, and the outer wall of the insertion assembly is made of metal or plastic materials.
To better illustrate the invention and to facilitate the understanding of the technical solutions thereof, typical but non-limiting examples of the invention are as follows:
example 1
The embodiment provides a drawer-type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises 4 slots and 4 hot gas injection components capable of being inserted into the slots, the outer wall of each hot gas injection component is respectively and independently provided with a tetrafluoroethylene microporous filter membrane except for a base and the outer wall opposite to the base, each hot gas injection component is respectively and independently provided with a hot gas inlet on the base, the corresponding part of the outer wall of the hydrophobic microporous material of the hot gas injection component in each slot is hollow, the bottom end of the side wall of the gas-liquid mixing cavity is provided with a first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with a first liquid outlet, the bottom end of the side wall of the gas volatilization cavity is provided with a second liquid inlet, and the top end of the side wall of the gas volatilization cavity is provided with a second liquid outlet, the gas volatilization cavity is arranged above the second liquid outlet, and the gas-liquid mixing cavity and the gas volatilization cavity are connected through the first liquid outlet and the second liquid inlet. The device cavity is internally provided with 3 clapboards which divide the device cavity into 4 semi-closed chambers. The concrete structure is shown in figure 1.
Example 2
The embodiment provides a drawer-type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises 6 slots and 6 hot gas injection components capable of being inserted into the slots, the outer wall of each hot gas injection component is respectively and independently provided with a tetrafluoroethylene microporous filter membrane except for a base and the outer wall opposite to the base, each hot gas injection component is respectively and independently provided with a hot gas inlet on the base, the corresponding part of the outer wall of the hydrophobic microporous material of the hot gas injection component in each slot is hollow, the bottom end of the side wall of the gas-liquid mixing cavity is provided with a first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with a first liquid outlet, the bottom end of the side wall of the gas volatilization cavity is provided with a second liquid inlet, and the top end of the side wall of the gas volatilization cavity is provided with a second liquid outlet, the gas volatilization cavity is arranged above the second liquid outlet, and the gas-liquid mixing cavity and the gas volatilization cavity are connected through the first liquid outlet and the second liquid inlet. The device cavity is internally provided with 2 clapboards which divide the device cavity into 3 semi-closed chambers. The specific structure is shown in fig. 2.
Example 3
The embodiment provides a drawer-type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises 5 slots and 5 hot gas injection components capable of being inserted into the slots, the outer wall of each hot gas injection component is respectively and independently provided with a polyvinylidene fluoride microporous filter membrane except a base and the outer wall opposite to the base, the hot gas injection components are respectively and independently provided with a hot gas inlet on the base, the corresponding part of the outer wall of the hydrophobic microporous material of the hot gas injection components in the slots is the polyvinylidene fluoride microporous filter membrane, the bottom end of the side wall of the gas-liquid mixing cavity is provided with a first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with a first liquid outlet, and the bottom end of the side wall of the gas volatilization cavity is provided with a second liquid inlet, the lateral wall top in the gaseous chamber that volatilizees is provided with a second liquid outlet, the gaseous chamber that volatilizees is in second liquid outlet top is provided with a hot gas outlet, gas-liquid mixture chamber and gaseous chamber that volatilizees pass through first liquid outlet and second liquid entry links to each other. The device cavity is internally provided with 2 clapboards which divide the device cavity into 3 semi-closed chambers. The specific structure is shown in fig. 3.
Example 4
The embodiment provides a drawer-type split water organic solvent evaporation device, which comprises a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises 4 slots and 4 hot gas injection components capable of being inserted into the slots, the outer wall of each hot gas injection component is respectively and independently provided with a polyvinylidene fluoride microporous filter membrane except a base and the outer wall opposite to the base, the hot gas injection components are respectively and independently provided with a hot gas inlet on the base, the corresponding part of the outer wall of the hydrophobic microporous material of the hot gas injection components in the slots is the polyvinylidene fluoride microporous filter membrane, the bottom end of the side wall of the gas-liquid mixing cavity is provided with a first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with a first liquid outlet, and the bottom end of the side wall of the gas volatilization cavity is provided with a second liquid inlet, the lateral wall top in the gaseous chamber that volatilizees is provided with a second liquid outlet, the gaseous chamber that volatilizees is in second liquid outlet top is provided with a hot gas outlet, gas-liquid mixture chamber and gaseous chamber that volatilizees pass through first liquid outlet and second liquid entry links to each other. The device cavity is internally provided with 1 clapboard which divides the device cavity into 2 semi-closed chambers. The specific structure is shown in fig. 4.
Comparative example
Comparative example the apparatus provided was the same as that of example 1 except that the tetrafluoroethylene microporous filtration membrane on the outer wall of the hot gas injection module in the apparatus provided in example 1 was replaced with the aluminum alloy outer wall.
Using the apparatuses provided in examples 1 to 4 and comparative example 1, respectively, ethanol (ethanol concentration 20 wt%) in water was separated at a liquid flow rate of 100mL/s, and nitrogen was used as a hot gas at a temperature of 90 ℃ and a hot gas flow rate of 50 mL/s. The residual amount of ethanol in the liquid obtained at the liquid outlet of each apparatus was measured, and the test results are shown in table 1.
Figure BDA0001863417570000101
As can be seen from the results in table 1, the ethanol in the 20% ethanol aqueous solution was separated by using the apparatus provided in examples 1 to 4 of the present invention, and the ethanol content in the separated water was less than 1%, whereas in comparative example 1, the hydrophobic microporous partition plate in the apparatus provided in example 1 was replaced by an aluminum alloy partition plate, and the ethanol content in the separated water was as high as 4.9%.
The applicant declares that the present invention illustrates the detailed structural features of the present invention through the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must be implemented depending on the above detailed structural features. It should be understood by those skilled in the art that any modifications of the present invention, equivalent substitutions of selected components of the present invention, additions of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (16)

1. A drawer-type split water organic solvent evaporation device is characterized by comprising a gas-liquid mixing cavity and a gas volatilization cavity, wherein the gas-liquid mixing cavity comprises at least one slot and a hot gas injection assembly capable of being inserted into the slot, the outer wall of the hot gas injection assembly comprises a hydrophobic micropore material, the hot gas injection assembly is provided with at least one hot gas inlet, the corresponding part of the slot and the outer wall of the hydrophobic micropore material of the hot gas injection assembly is a hollowed or hydrophobic micropore material, the bottom end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid inlet, the top end of the side wall of the gas-liquid mixing cavity is provided with at least one first liquid outlet, the bottom end of the side wall of the gas volatilization cavity is provided with at least one second liquid inlet, and the top end of the side wall of the gas volatilization cavity is provided with at least one second liquid outlet, the gas volatilization cavity is arranged above the second liquid outlet and is provided with at least one hot gas outlet, and the gas-liquid mixing cavity and the gas volatilization cavity are connected with the first liquid outlet and the second liquid inlet.
2. The device of claim 1, wherein the socket extends partially or entirely through the gas-liquid mixing chamber.
3. The apparatus of claim 1, wherein a baffle is disposed inside the gas-liquid mixing chamber.
4. The apparatus of claim 1, wherein the hot gas injection assembly comprises a pedestal.
5. The apparatus of claim 4, wherein the hot gas inlet is disposed at the base.
6. The apparatus of claim 4, wherein the base and the socket contact portion are provided with a sealing assembly.
7. The apparatus of claim 6, wherein the seal assembly is a seal ring.
8. The device of claim 1, wherein the hydrophobic microporous material comprises a microporous filter membrane and/or a microporous ceramic.
9. The device of claim 8, wherein the hydrophobic microporous material is a microporous filter membrane.
10. The device of claim 8, wherein the microfiltration membrane comprises a tetrafluoroethylene microfiltration membrane and/or a polyvinylidene fluoride microfiltration membrane.
11. The device of claim 8, wherein the microfiltration membrane comprises any one of a flat sheet, a composite flat sheet, a tubular shape, or a spiral tubular shape.
12. The device of claim 1, wherein the first liquid outlet is at a higher position than the first liquid inlet.
13. The apparatus of claim 1, wherein the second liquid outlet is at a higher position than the second liquid inlet.
14. The apparatus of claim 1, wherein the hot gas outlet is provided with a vacuum device and a solvent cooling recovery device.
15. The apparatus of claim 1, wherein the organic solvent evaporation apparatus in water is connected in series or in parallel.
16. The apparatus of claim 1 wherein the hot gas comprises any one or a combination of at least two of heated nitrogen, helium, argon or neon.
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CN113616524B (en) * 2021-06-07 2024-05-14 浙江圣兆药物科技股份有限公司 Device and process for preparing reservoir foam liposome
CN114669085B (en) * 2022-01-28 2024-05-31 南京宁源科生物技术有限公司 Organic solvent removing device for medicinal particles

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CN104261502A (en) * 2014-09-26 2015-01-07 马军 Treatment method and device of wastewater containing organic solvent
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