CN214714444U - Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether - Google Patents
Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether Download PDFInfo
- Publication number
- CN214714444U CN214714444U CN202023321838.0U CN202023321838U CN214714444U CN 214714444 U CN214714444 U CN 214714444U CN 202023321838 U CN202023321838 U CN 202023321838U CN 214714444 U CN214714444 U CN 214714444U
- Authority
- CN
- China
- Prior art keywords
- drying
- stirring kettle
- liquid
- pipeline
- dryer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The application discloses a drying and dehydrating system in fatty alcohol-polyoxyethylene ether production, which comprises a dehydrating dryer, a drying and stirring kettle, a raw material feeding pump and a vacuum system, wherein a stirring device is arranged on the drying and stirring kettle, and the top of the drying and stirring kettle is connected with a raw material feeding pipe; a liquid outlet at the bottom of the drying stirring kettle is connected with a liquid inlet at the upper part of the dehydration dryer through a raw material feeding pump by a pipeline, and a liquid outlet at the bottom of the dehydration dryer is connected with a liquid inlet at the top of the drying stirring kettle through a pipeline to form a drying circulation pipeline system; and the top gas outlet of the dehydration dryer and the top gas outlet of the drying stirring kettle are connected to a vacuum system through pipelines. When the device system of this application moves, the raw materials liquid circulation flow between dry stirred tank and dehydration ware, is favorable to the evaporation of moisture in the raw materials liquid to escape, can effectively improve the dehydration efficiency of fatty alcohol and liquid catalyst raw materials liquid.
Description
Technical Field
The application relates to a drying and dewatering system in fatty alcohol-polyoxyethylene ether production.
Background
Fatty alcohol-polyoxyethylene ether is an important nonionic surfactant and has excellent wetting, emulsifying and dirt-removing capabilities, fatty alcohol-polyoxyethylene ether (AEO) and peregal series products thereof are widely applied to different fields of washing, printing, spinning, rubber and the like, wherein polyethylene glycol monomethyl ether, allyl alcohol ethoxylate and the like are main raw materials for preparing polycarboxylic acid cement water reducing agents.
At present, fatty alcohol-polyoxyethylene ether is mainly prepared by taking fatty alcohol as an initiator and performing direct addition reaction with ethylene oxide under the action of different types of catalysts (an acid catalyst, an alkaline-earth catalyst, a composite alkaline catalyst and the like). However, in the production of fatty alcohol-polyvinyl ether, fatty alcohol and liquid catalyst raw materials need to be dehydrated in vacuum first and then enter the next procedure to react with ethylene oxide, so that the impurity content of polyethylene glycol generated by side reaction is reduced, and the yield of target products is improved.
Disclosure of Invention
Aiming at the technical problems in the prior art, the application aims to provide a drying and dewatering system in fatty alcohol-polyoxyethylene ether production.
A dry dewatering system in fatty alcohol polyvinyl ether production, its characterized in that is equipped with the agitating unit that is used for carrying out the stirring to its inside liquid including dehydration dryer, dry stirred tank, raw materials charge-in pump and vacuum system on the dry stirred tank, dry stirred tank top is connected with the raw materials inlet pipe to let in the raw materials liquid of treating drying in the dry stirred tank. A liquid outlet at the bottom of the drying stirring kettle is connected with a liquid inlet at the upper part of the dehydration dryer through a raw material feeding pump by a pipeline, and a liquid outlet at the bottom of the dehydration dryer is connected with a liquid inlet at the top of the drying stirring kettle through a pipeline to form a drying circulation pipeline system; and the top gas outlet of the dehydration dryer and the top gas outlet of the drying stirring kettle are connected to a vacuum system through pipelines, and the dehydration dryer and the drying stirring kettle are dried and dehydrated in a negative pressure state under the operation action of the vacuum system.
The drying and dewatering system in the production of the fatty alcohol-polyoxyethylene ether is characterized in that heat exchange interlayers are arranged on the outer side of the dewatering dryer and the outer side of the drying and stirring kettle, and a heat medium inlet and a heat medium outlet are arranged on each heat exchange interlayer so as to introduce a heat medium into the heat exchange interlayer for heating; wherein, the inside heating coil that still is equipped with of dry stirred tank, the entrance point and the exit end of heating coil all wear out from dry stirred tank lateral wall, can let in heat medium fluid in the heating coil to further heat the liquid in the dry stirred tank.
A dry dewatering system in fatty alcohol polyvinyl ether production, its characterized in that dry stirred tank top is equipped with the blow-down pipe and sets up the atmospheric valve on the blow-down pipe, be equipped with the flowing back branch pipe on the pipeline between the raw materials charge-in pump export and the upper portion inlet of dehydration ware to set up the flowing back valve on the flowing back branch pipe, so that through the raw materials liquid product of flowing back branch pipe after outwards discharging the drying.
The drying and dewatering system in the production of the fatty alcohol-polyoxyethylene ether is characterized in that a wire mesh demister and a material spray nozzle are sequentially arranged in the dewatering dryer from top to bottom, an inlet of the material spray nozzle is connected with an upper liquid inlet of the dewatering dryer through a pipeline, and an upper liquid inlet of the dewatering dryer is connected with an outlet of a raw material feeding pump through a pipeline; the inner walls of the left side and the right side of the dehydration dryer are respectively and fixedly provided with a plurality of left inclined plates and a plurality of right inclined plates, and the left inclined plates and the right inclined plates are inclined downwards and are arranged in a staggered manner; wherein, all left swash plates and all right swash plates are all located the below of material shower nozzle at the interval.
The drying and dewatering system in the production of the fatty alcohol-polyoxyethylene ether is characterized in that the vacuum system comprises an organic matter separation tank, a steam jet pump, a vacuum condenser and a vacuum pump system; the top air outlet of the dehydration dryer and the top air outlet of the drying stirring kettle are both connected with the middle inlet of the organic matter separation tank through pipelines, and a filler demister is arranged inside the upper end of the organic matter separation tank so as to carry out secondary defoaming on steam entering the organic matter separation tank; the top air outlet of the organic matter separating tank is connected with the air inlet of the steam jet pump through a pipeline, and the air outlet of the steam jet pump is connected with the vacuum pump system through a vacuum condenser through a pipeline.
The drying and dewatering system in the production of the fatty alcohol-polyoxyethylene ether is characterized in that a drain valve is arranged at the bottom of an organic matter separation tank, an outlet of the drain valve is connected with a collection tank through a pipeline, and liquid organic matters in the organic matter separation tank can be collected in the collection tank; and a heating interlayer is arranged on the outer side of the organic matter separation tank, and a heat medium inlet and a heat medium outlet are arranged on the heating interlayer.
Compared with the prior art, the beneficial effect that this application was got is:
the device system of this application moves, the feed solution is circulating flow between dry stirred tank and dehydration ware, can effectively improve the dehydration efficiency of fatty alcohol and liquid catalyst feed solution, feed solution is by material shower nozzle blowout back downward homodisperse, the structure that left swash plate and right swash plate downward sloping and crisscross setting each other can effectively prolong the area that feed solution spreads in dehydration ware and the time of downward flow, be favorable to the evaporation escape of moisture in the feed solution greatly.
Drawings
FIG. 1 is a schematic diagram of a drying and dewatering system for fatty alcohol-polyoxyethylene ether production according to the present application;
FIG. 2 is a schematic diagram of the construction of the dehydration dryer of the present application;
in the figure: 1-a drying stirring kettle, 2-a dehydration dryer, 21-a wire mesh demister, 22-a material spray head, 23-a left inclined plate, 24-a right inclined plate, 3-a raw material feeding pump, 4-an organic matter separation tank, 5-a steam jet pump, 6-a vacuum condenser, 7-a vacuum pump system and 8-a collection tank.
Detailed Description
The present invention is further illustrated by the following examples, which should not be construed as limiting the scope of the invention.
Example (b): compare fig. 1 and 2
The utility model provides a dry dewatering system in fatty alcohol polyvinyl ether production, includes dehydration dryer 2, dry stirred tank 1, raw materials charge pump 3 and vacuum system, is equipped with the agitating unit that is used for carrying out the stirring to its inside liquid on dry stirred tank 1, and 1 top of dry stirred tank is connected with the raw materials inlet pipe to let in the raw materials liquid of treating drying in to dry stirred tank 1. A liquid outlet at the bottom of the drying and stirring kettle 1 is connected with a liquid inlet at the upper part of the dehydration dryer 2 through a raw material feeding pump 3 by a pipeline, and a liquid outlet at the bottom of the dehydration dryer 2 is connected with a liquid inlet at the top of the drying and stirring kettle 1 by a pipeline to form a drying and circulating pipeline system; the top gas outlet of the dehydration dryer 2 and the top gas outlet of the drying stirring kettle 1 are connected to a vacuum system through pipelines, and under the operation action of the vacuum system, the dehydration dryer 2 and the drying stirring kettle 1 are dried and dehydrated in a negative pressure state.
In the application, heat exchange interlayers are arranged on the outer side of the dehydration dryer 2 and the outer side of the drying stirring kettle 1, and a heat medium inlet and a heat medium outlet are arranged on each heat exchange interlayer so as to introduce a heat medium into the heat exchange interlayer for heating; wherein, 1 inside heating coil that still is equipped with of dry stirred tank, the entrance point and the exit end of heating coil all wear out from 1 lateral wall of dry stirred tank, can let in heat medium fluid in the heating coil to further heat the liquid in the dry stirred tank 1.
In the comparison figure 1, the top of the drying and stirring kettle 1 is provided with an emptying pipe and an emptying valve, a liquid drainage branch pipe is arranged on a pipeline between the outlet of the raw material feeding pump 3 and the upper liquid inlet of the dehydration dryer 2, and a liquid drainage valve is arranged on the liquid drainage branch pipe so as to discharge the dried raw material liquid product outwards through the liquid drainage branch pipe. Therefore, in the drying cycle dehydration process, a part of dehydrated raw material liquid is discharged outwards and sent to the next procedure to react with ethylene oxide to prepare the fatty alcohol-polyoxyethylene ether.
In the comparison of fig. 2, a wire mesh demister 21 and a material nozzle 22 are sequentially arranged in the dehydration dryer 2 from top to bottom, an inlet of the material nozzle 22 is connected with an upper liquid inlet of the dehydration dryer 2 through a pipeline, and the upper liquid inlet of the dehydration dryer 2 is connected with an outlet of the raw material feeding pump 3 through a pipeline; the inner walls of the left side and the right side of the dehydration dryer 2 are respectively and fixedly provided with a plurality of left sloping plates 23 and a plurality of right sloping plates 24, and the left sloping plates 23 and the right sloping plates 24 are both inclined downwards and are arranged in a staggered way; wherein, all the left sloping plates 23 and all the right sloping plates 24 are arranged below the material spray head 22 at intervals. It can be seen that a space interval is provided between the right end of the left inclined plate 23 and the right inner wall of the dehydration dryer 2, and a space interval is provided between the left end of the right inclined plate 24 and the left inner wall of the dehydration dryer 2.
Further, in the device system of the present application, the vacuum system comprises an organic matter separation tank 4, a steam jet pump 5, a vacuum condenser 6 and a vacuum pump system 7; the top gas outlet of the dehydration dryer 2 and the top gas outlet of the drying stirring kettle 1 are connected with the middle inlet of the organic matter separation tank 4 through pipelines, the top gas outlet of the organic matter separation tank 4 is connected with the gas inlet of the steam jet pump 5 through a pipeline, and the gas outlet of the steam jet pump 5 is connected with the vacuum pump system 7 through a vacuum condenser 6 and a pipeline.
In the device system operation process of this application, the steam of drawing out from dehydration dryer 2 and dry stirred tank 1 may carry a small amount of liquid material, consequently sets up the filler demister inside the upper end of organic matter knockout drum 4 to carry out the secondary and remove the foam to the steam that gets into organic matter knockout drum 4 inside.
In the apparatus system of the present application, the vacuum state in the dehydration dryer 2 and the drying agitation tank 1 is maintained by the cooperative operation of the steam jet pump 5 and the vacuum pump system 7. During the vacuum drying, a small amount of organic substances may be evaporated with the moisture and released, and the organic substances are more easily condensed than the moisture, so that some organic substances may be slowly deposited in the organic substance separation tank 4. The gas discharged from the steam jet pump 5 is condensed and dewatered by a vacuum condenser 6, and then pumped out by a vacuum pump system 7.
A liquid discharging valve is arranged at the bottom of the organic matter separating tank 4, an outlet of the liquid discharging valve is connected with a collecting tank 8 through a pipeline, and liquid organic matters in the organic matter separating tank 4 can be collected in the collecting tank 8; the outer side of the organic matter separation tank 4 is provided with a heating interlayer, and the heating interlayer is provided with a heat medium inlet and a heat medium outlet so as to introduce a heat medium into the heating interlayer to heat the organic matter separation tank 4.
In the device system of the application, the purpose of the heating interlayer arranged outside the organic matter separation tank 4 is as follows: in winter, some organic matters deposited in the organic matter separation tank 4 may be frozen due to low external temperature to block pipelines and equipment, which may have a great adverse effect on the operation process of the equipment. Therefore, the heating interlayer is arranged on the outer side of the organic matter separation tank 4, when the device system is started, the organic matter separation tank 4 is heated, the frozen organic matter is liquefied, and then the liquefied organic matter is collected in the collection tank 8.
And the device system of the application stops heating the organic matter separation tank 4 when in normal operation, so as to prevent the negative influence on the vacuumizing process.
The statements in this specification merely set forth a list of implementations of the inventive concept and the scope of the present invention should not be construed as limited to the particular forms set forth in the examples.
Claims (6)
1. A drying and dewatering system in fatty alcohol-polyoxyethylene ether production is characterized by comprising a dewatering dryer (2), a drying stirring kettle (1), a raw material feeding pump (3) and a vacuum system, wherein a stirring device for stirring liquid in the drying stirring kettle (1) is arranged on the drying stirring kettle, and the top of the drying stirring kettle (1) is connected with a raw material feeding pipe so as to introduce the raw material liquid to be dried into the drying stirring kettle (1);
a liquid outlet at the bottom of the drying and stirring kettle (1) is connected with a liquid inlet at the upper part of the dehydration dryer (2) through a raw material feeding pump (3) by a pipeline, and a liquid outlet at the bottom of the dehydration dryer (2) is connected with a liquid inlet at the top of the drying and stirring kettle (1) by a pipeline to form a drying and circulating pipeline system; the top gas outlet of the dehydration dryer (2) and the top gas outlet of the drying stirring kettle (1) are connected to a vacuum system through pipelines, and the dehydration dryer (2) and the drying stirring kettle (1) are dried and dehydrated under the negative pressure state under the operation action of the vacuum system.
2. The drying and dewatering system in fatty alcohol-polyoxyethylene ether production according to claim 1, characterized in that heat exchange interlayers are provided on both the outside of the dewatering dryer (2) and the outside of the drying and stirring kettle (1), and a heat medium inlet and a heat medium outlet are provided on the heat exchange interlayers, so that a heat medium is introduced into the heat exchange interlayers for heating; wherein, dry stirred tank (1) inside still is equipped with heating coil, and drying stirred tank (1) lateral wall is all worn out from to the entrance point and the exit end of heating coil, can let in heat medium fluid in the heating coil to further heat the liquid in dry stirred tank (1).
3. The drying and dewatering system for fatty alcohol-polyoxyethylene ether production, as claimed in claim 1, wherein the top of the drying and stirring tank (1) is provided with a vent pipe and a vent valve, a drain branch pipe is provided on the pipeline between the outlet of the raw material feed pump (3) and the upper liquid inlet of the dewatering dryer (2), and a drain valve is provided on the drain branch pipe to discharge the dried raw material liquid product through the drain branch pipe.
4. The drying and dewatering system in the production of fatty alcohol-polyoxyethylene ether according to claim 1, characterized in that a wire mesh demister (21) and a material spray nozzle (22) are sequentially arranged in the dewatering dryer (2) from top to bottom, an inlet of the material spray nozzle (22) is connected with an upper liquid inlet of the dewatering dryer (2) through a pipeline, and an upper liquid inlet of the dewatering dryer (2) is connected with an outlet of the raw material feed pump (3) through a pipeline; the inner walls of the left side and the right side of the dehydration dryer (2) are respectively and fixedly provided with a plurality of left inclined plates (23) and a plurality of right inclined plates (24), and the left inclined plates (23) and the right inclined plates (24) are inclined downwards and are arranged in a staggered manner; wherein, all the left sloping plates (23) and all the right sloping plates (24) are arranged below the material spray head (22) at intervals.
5. The drying and dewatering system in fatty alcohol-polyoxyethylene ether production according to claim 1, wherein the vacuum system comprises an organic matter separation tank (4), a steam jet pump (5), a vacuum condenser (6) and a vacuum pump system (7); the top air outlet of the dehydration dryer (2) and the top air outlet of the drying stirring kettle (1) are both connected with the middle inlet of the organic matter separation tank (4) through pipelines, and a filler demister is arranged inside the upper end of the organic matter separation tank (4) so as to carry out secondary defoaming on steam entering the organic matter separation tank (4); the top air outlet of the organic matter separating tank (4) is connected with the air inlet of the steam jet pump (5) through a pipeline, and the air outlet of the steam jet pump (5) is connected with the vacuum pump system (7) through a vacuum condenser (6) through a pipeline.
6. The drying and dewatering system in fatty alcohol-polyoxyethylene ether production according to claim 5, characterized in that a drain valve is arranged at the bottom of the organic matter separation tank (4), an outlet of the drain valve is connected with a collection tank (8) through a pipeline, and liquid organic matter in the organic matter separation tank (4) can be collected in the collection tank (8); and a heating interlayer is arranged on the outer side of the organic matter separation tank (4), and a heat medium inlet and a heat medium outlet are arranged on the heating interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023321838.0U CN214714444U (en) | 2020-12-31 | 2020-12-31 | Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023321838.0U CN214714444U (en) | 2020-12-31 | 2020-12-31 | Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214714444U true CN214714444U (en) | 2021-11-16 |
Family
ID=78636745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023321838.0U Active CN214714444U (en) | 2020-12-31 | 2020-12-31 | Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214714444U (en) |
-
2020
- 2020-12-31 CN CN202023321838.0U patent/CN214714444U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102328928B (en) | Equipment for producing active carbon | |
| CN201270755Y (en) | Continuous production equipment for water washing and peeling of sesame | |
| CN214714444U (en) | Drying and dewatering system in production of fatty alcohol-polyoxyethylene ether | |
| CN106110685B (en) | The system that a kind of waste heat using drying machine is evaporated concentration | |
| CN115138310A (en) | Preparation device and method of SPGII polypropylene | |
| CN107399898A (en) | A kind of sludge dewatering and the method for degraded | |
| CN104782876A (en) | Cottonseed protein production process method | |
| CN106387369A (en) | Production technology of corn pulp addition fibers | |
| CN211284125U (en) | Multi-effect short-distance heat transfer drying system | |
| CN101289820B (en) | Process and device for abstracting lignose with zero discharge of paper making black liquor | |
| CN115304235A (en) | Sludge dewatering system and application thereof | |
| CN205948390U (en) | System for waste heat that utilizes desiccator carries out evaporative concentration | |
| CN207980778U (en) | A kind of dry exhaust gas cleaner | |
| CN111544910A (en) | Liquid evaporation, concentration and drying integrated treatment method | |
| CN203938621U (en) | A kind of by the refining isobutyric suite of equipment of isobutyric aldehyde | |
| CN216620760U (en) | MTO low pressure lime set heat recycles device | |
| CN207313499U (en) | A kind of device using biomass material rapid polymerization humic acid | |
| CN206380656U (en) | A kind of corn adds the production system of pulp fibres | |
| CN217423805U (en) | Energy-saving emission-reducing niclosamide drying system | |
| CN220818476U (en) | Naphthalene sulfonate processing apparatus | |
| CN109574450A (en) | Sludge dehydrating and drying denitrogenation integrated equipment and technique | |
| CN205084518U (en) | A dry filter equipment for preparing epoxidized soybean oil | |
| CN220194018U (en) | Polyvinyl alcohol and post-treatment device for modified polymer thereof | |
| CN212024821U (en) | Salt recovery system of waste water is pickled to turnip | |
| CN220834159U (en) | Crude fatty acid refining and diverting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |