CN213853124U - Clean recovery system of solvent - Google Patents
Clean recovery system of solvent Download PDFInfo
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- CN213853124U CN213853124U CN202022786475.1U CN202022786475U CN213853124U CN 213853124 U CN213853124 U CN 213853124U CN 202022786475 U CN202022786475 U CN 202022786475U CN 213853124 U CN213853124 U CN 213853124U
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Abstract
The utility model discloses a clean recovery system of solvent relates to fine chemistry industry technical field. The system comprises a concentration kettle, a preposed condensation recovery system, a vacuum unit, a postposed condensation system and a liquid ring vacuum pump; and the solvent steam in the concentration kettle is condensed and recovered by a preposed condensation recovery system under the vacuum action provided by the vacuum unit, and the residual solvent steam is recovered by a vacuum condensation recovery system arranged at the front end under the vacuum action provided by the liquid ring vacuum pump along with an exhaust port of the vacuum unit. The utility model utilizes the micro-vacuum pressure generated by the special-shaped cavity of the liquid ring pump to take away the residual solvent vapor in the vacuum pump unit for condensation, thereby not only fully condensing the solvent vapor, but also protecting the vacuum pump unit from being corroded by the solvent vapor, and also preventing the working medium water of the vacuum pump unit from being damaged by the solvent, thereby effectively ensuring the vacuum degree of the vacuum pump; on the other hand, solvent residue and volatilization can be effectively avoided, and the requirement of clean production is met.
Description
Technical Field
The utility model relates to a fine chemistry industry technical field, in particular to clean recovery system of solvent.
Background
In the field of chemical pharmacy, reaction solvents can be recycled due to cost control, and common concentration and distillation devices can meet basic requirements, but most of the reaction solvents are high in corrosivity to vacuum equipment, the recovery rate of the solvents is not ideal, and the manufacturing cost is too high. In addition, when the traditional recovery device adopts a single vacuum device, the vacuum device can remain and volatilize a large amount of solvent to cause environmental pollution, and the requirement of clean production is not met.
Therefore, there is a need to provide a new solvent cleaning and recycling system to overcome the above-mentioned deficiencies in the prior art, and have good practical and popularization values.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clean recovery system of solvent to solid-liquid separation and liquid phase concentration inefficiency, solvent are to the problem that the output is low after the active material is concentrated in the corruption of vacuum apparatus and the liquid phase among the solution prior art.
In order to achieve the purpose, the utility model provides a solvent cleaning and recycling system, which comprises a concentration kettle, a condensation recycling device and a vacuum device; wherein:
the condensation recovery device comprises a front condenser, a front recovery tank, a liquid ring pump condenser and a liquid ring recovery tank; the vacuum device comprises a vacuum unit and a liquid ring vacuum pump; the steam outlet of the concentration kettle is communicated with the upper part of the front condenser, the lower part of the front condenser is communicated with one side of the upper part of the front recovery tank, the opposite side of the upper part of the front recovery tank is communicated with the vacuum unit, the vacuum unit is communicated with the upper part of the liquid ring pump condenser, the lower part of the liquid ring pump condenser is communicated with one side of the upper part of the liquid ring recovery tank, and the opposite side of the upper part of the liquid ring recovery tank is communicated with the liquid ring vacuum pump.
According to one embodiment of the invention, the communication pipe between the pre-condenser and the pre-recovery tank extends inwards to the middle part of the pre-recovery tank.
According to one embodiment of the invention, the pre-condenser comprises a primary and a secondary condensing device; the primary condensing device comprises a primary condenser and a primary recovery tank, and the secondary condensing device comprises a secondary condenser and a secondary recovery tank; the steam outlet of the concentration kettle is communicated with the upper part of the first-stage condenser, the lower part of the first-stage condenser is communicated with one side of the upper part of the first-stage recovery tank, the opposite side of the upper part of the first-stage recovery tank is communicated with the upper part of the second-stage condenser, the lower part of the second-stage condenser is communicated with one side of the upper part of the second-stage recovery tank, and the opposite side of the upper part of the second-stage recovery tank is communicated with the vacuum unit.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a little vacuum pressure that clean recovery system of solvent utilized the special-shaped cavity of liquid ring pump to produce takes away the condensation with remaining solvent vapor in the vacuum pump unit, both can make solvent vapor obtain abundant condensation, has also protected the vacuum unit simultaneously and has not received the corruption of solvent vapor, also makes the working medium water of vacuum pump unit not receive the destruction of solvent, effectively ensures the vacuum of vacuum pump then.
2. The utility model provides a clean recovery system of solvent can effectively avoid in the vacuum unit solvent to remain and volatilize, has satisfied cleaner production's requirement.
3. The utility model discloses structural design is simple, easy operation, and two people can accomplish whole concentrated operation and the task is retrieved to hou mian condensation, saves the cost of labor.
4. The utility model discloses a clean recovery system of solvent is safe convenient, no material loss, and solvent recovery efficiency is high, has fine in-service use and spreading value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a cleaning and recycling system for solvent according to the present invention.
In the figure, 1 is a concentration kettle, 2 is a first-stage condenser, 3 is a second-stage condenser, 4 is a liquid ring pump condenser, 5 is a first-stage recovery tank, 6 is a second-stage recovery tank, 7 is a liquid ring pump recovery tank, 8 is a vacuum pump unit, and 9 is a liquid ring pump.
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.
It is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or components must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
As shown in fig. 1, the present invention provides a clean recovery system for solvent.
Kettle cover one side of concentrated cauldron 1 is equipped with valve control's charge-in pipeline, the opposite side is equipped with solvent evaporation pipeline, evaporation pipeline intercommunication one-level condenser 2's upper portion, the upper portion one side of one-level condenser 2's lower part intercommunication one-level recovery tank 5, the opposite side intercommunication second grade condenser 3's upper portion in one-level recovery tank 5 upper portion, the upper portion one side of second grade recovery tank 6 of second grade condenser 3's lower part intercommunication, the opposite side intercommunication vacuum unit 8 in the upper portion of second grade recovery tank 5, and continue the upper portion of intercommunication liquid ring pump condenser 4, the upper portion one side of liquid ring pump recovery tank 7 is communicated to the lower part of liquid ring pump condenser 4, the opposite side intercommunication liquid ring pump 9 in the upper portion of liquid ring pump recovery tank 7.
Further, in order to avoid the liquid solvent from being entrained in the vacuum as much as possible, the communication pipelines of the first-stage condenser 2, the second-stage condenser 3, the first-stage recovery tank 5 and the second-stage recovery tank 6 extend inwards to the middle part (not shown in the figure) of the corresponding recovery tank.
In addition, a thermometer and a vacuum gauge (both shown in the figure) are also arranged on the concentration kettle 1, so that the temperature and the pressure can be conveniently controlled, and the solvent can be conveniently and better recovered.
The utility model discloses in concentrated cauldron can select the most commonly used glass-lined reation kettle that presss from both sides the cover of taking the heating in modern chemical pharmacy field, and have recovery solvent reflux unit, have self-cleaning function behind the concentrated solvent. And the bottom is provided with a seabed valve, so that the concentrated material can be conveniently collected.
The utility model discloses in recovery jar generally adopt the polypropylene material, for the convenience of collecting the solvent, establish the trompil that communicates condenser and vacuum pipe at the top of recovery jar.
The condenser in the utility model is a common condenser or a heat exchanger, and the top and the bottom are provided with internally communicated heat exchange channels; the side edges are provided with cooling medium circulation channels (cooling medium circulation pipelines are not shown in the figure) which are internally communicated, and the cooling medium circulation channels are not communicated with the heat exchange channels.
The vacuum unit 8 of the present invention is a common vacuum pump, such as a roots reciprocating unit.
The utility model discloses in can be equipped with the valve that realizes that the pipeline seals or open on the pipeline of each part intercommunication, for the interpolation and the setting that the field is commonly used.
The utility model discloses in liquid ring pump 9 be single-stage water ring pump, its liquid seal medium is water, its main function is absorbed the residual solvent in later stage pipeline and the vacuum pump and carries out the condensation in condensing recovery unit, provides the most terminal vacuum power for whole solvent recovery system, makes the abundant condensation of solvent and retrieve then. Because of vacuum pump and liquid ring pump's working medium all is water, the solvent of retrieving should not interact with water, and the solubility in water should be difficult for dissolving, and the condensation can only be taken away in continuation vacuum by the liquid ring pump to a small amount of solvent of being taken out in the vacuum pump, has protected vacuum pump unit not to receive the corruption of solvent vapour on the one hand, and on the other hand can furthest's recovery solvent, practices thrift the cost.
The utility model discloses an operation process and principle as follows:
the mixed solution of the solvent to be recycled is transferred into a concentration kettle 1, primary condensation (comprising a corresponding primary condenser 2 and a corresponding recovery tank 5), secondary condensation (comprising a corresponding secondary condenser 3 and a corresponding recovery tank 6, the same below) and liquid ring pump condensation are all opened, so that each condenser is fully condensed. The concentration kettle 1 is heated, the vacuum pump unit 8 is opened to enable the system to be in a vacuum state, and then the liquid ring pump 9 is opened. As the solvent vapor enters the primary condenser 2, the vapor temperature is generally reduced and a portion of the vapor is condensed to liquid, which then enters the primary recovery tank 5. The container steam which is not condensed in the first-stage condenser 2 enters the second-stage condenser 3 under the action of vacuum, the solvent steam is condensed into liquid basically under the action of the second-stage condenser 3 and then enters the second-stage recovery tank 6, but a very small amount of solvent steam still rapidly enters a vacuum pipeline under the impact of vacuum at the moment and finally enters a vacuum pump inner cavity of the vacuum unit 8, then the residual solvent steam is continuously pumped into the liquid ring pump condenser for final condensation under the vacuum action of the liquid ring pump 9, and finally enters the liquid ring pump recovery tank 7.
The utility model discloses an utilize little vacuum pressure that the dysmorphism cavity of liquid ring pump produced to take away the condensation with remaining and by the solvent vapor that vacuum absorption was come in the vacuum pump unit, both can make solvent vapor obtain abundant condensation, also protected the vacuum unit simultaneously and not receive the corruption of solvent vapor, also make the working medium water of vacuum pump unit not receive the destruction of solvent, effectively ensure the vacuum degree of vacuum pump then.
The utility model discloses structural design is simple, easy operation. Two people can accomplish whole concentration operation and follow condensation and retrieve the task, save the cost of labor. This utility model discloses it is safe convenient, no material loss, solvent recovery efficiency is high, and effectively protects the vacuum pump unit not corroded, has fine in-service use and spreading value.
The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (3)
1. The utility model provides a clean recovery system of solvent, includes concentrated cauldron (1), condensation recovery unit and vacuum apparatus, its characterized in that:
the condensation recovery device comprises a front condenser, a front recovery tank, a liquid ring pump condenser (4) and a liquid ring recovery tank (7);
the vacuum device comprises a vacuum unit (8) and a liquid ring vacuum pump (9);
the steam outlet of the concentration kettle (1) is communicated with the upper part of a front condenser, the lower part of the front condenser is communicated with one side of the upper part of a front recovery tank, the opposite side of the upper part of the front recovery tank is communicated with a vacuum unit (8), the vacuum unit (8) is communicated with the upper part of a liquid ring pump condenser (4), the lower part of the liquid ring pump condenser (4) is communicated with one side of the upper part of a liquid ring recovery tank (7), and the opposite side of the upper part of the liquid ring recovery tank (7) is communicated with a liquid ring vacuum pump (9).
2. The solvent clean-up recovery system of claim 1, wherein the communication conduit of the pre-condenser and the pre-recovery tank extends inward to a middle portion of the pre-recovery tank.
3. The solvent clean-up recovery system of claim 1, wherein the pre-condenser comprises a primary and a secondary condensing unit; the primary condensing device comprises a primary condenser (2) and a primary recovery tank (5), and the secondary condensing device comprises a secondary condenser (3) and a secondary recovery tank (6); the steam outlet of the concentration kettle (1) is communicated with the upper part of the first-stage condenser (2), the lower part of the first-stage condenser (2) is communicated with one side of the upper part of the first-stage recovery tank (5), the opposite side of the upper part of the first-stage recovery tank (5) is communicated with the upper part of the second-stage condenser (3), the lower part of the second-stage condenser (3) is communicated with one side of the upper part of the second-stage recovery tank (6), and the opposite side of the upper part of the second-stage recovery tank (6) is communicated with the vacuum unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022786475.1U CN213853124U (en) | 2020-11-26 | 2020-11-26 | Clean recovery system of solvent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022786475.1U CN213853124U (en) | 2020-11-26 | 2020-11-26 | Clean recovery system of solvent |
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| CN213853124U true CN213853124U (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146653A (en) * | 2021-12-06 | 2022-03-08 | 丽水镇铭新材料科技有限公司 | Waterborne polyurethane production device and use method thereof |
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2020
- 2020-11-26 CN CN202022786475.1U patent/CN213853124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146653A (en) * | 2021-12-06 | 2022-03-08 | 丽水镇铭新材料科技有限公司 | Waterborne polyurethane production device and use method thereof |
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