CN201586397U - Glycerol polishing agent distillation column kettle - Google Patents
Glycerol polishing agent distillation column kettle Download PDFInfo
- Publication number
- CN201586397U CN201586397U CN2009202171199U CN200920217119U CN201586397U CN 201586397 U CN201586397 U CN 201586397U CN 2009202171199 U CN2009202171199 U CN 2009202171199U CN 200920217119 U CN200920217119 U CN 200920217119U CN 201586397 U CN201586397 U CN 201586397U
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- CN
- China
- Prior art keywords
- tower still
- glycerine
- column kettle
- steam
- pin
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- 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.)
- Expired - Fee Related
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a glycerol polishing agent distillation column kettle which comprises a column kettle body, a glycerol steam outlet machined on the top part of the column kettle, a slag outlet machined at the bottom of the column kettle and a feed pipe arranged on the side wall of the column kettle; the utility model is characterized in that: a plurality of vertical heating tubes are evenly distributed on the lower part of the column kettle and are connected with a steam pipeline; the feed pipe extends from the middle part of the column kettle to the lower part of the column kettle. The utility model has the advantages that: steam heating tubes are adopted and the heating temperature of the heating tubes is fixed at 200 DEG C, the fluctuation is small, the coking and curing of the glycerol polishing agent are avoided during the distillation process, and the heat transfer efficiency and the service life of the equipment are improved.
Description
Technical field
The utility model relates to the black pin destilling tower still of a kind of glycerine, and main body is the tower still, has the glycerin vapor outlet at this tower still top, and the bottom has slag notch, and the sidewall of described tower still is provided with feed pipe.
Background technology
When the industry stearic acid is produced, make the fixed oil hydrolysis get croude fatty acids, again through the distillation stearic acid that gets product by high pressure-temperature.Can obtain negative product glycerine water solution simultaneously, after its processing, again through concentrating and distill and to produce pure glycerin, the black pin of the continuous discharging of palpus glycerine in still-process, usually the black pin of the glycerine that emits can adopt the method for distillation to distill extraction glycerine once more, and resource is utilized fully.And the black pin distillation of traditional glycerine forces heat exchange to be carried out outside the tower still, heat medium in the heat exchanger is a conduction oil, under vacuum condition, the black pin of glycerine is heated up by conduction oil and the black pin heat exchange of glycerine, make in the black pin of glycerine the glycerine vaporization and from the top sucking-off of tower still, thereby obtain glycerine.The shortcoming of this destilling tower still is: the conduction oil temperature is higher, and the temperature instability, easily produces coking, curing in still-process, causes the obstruction of tower still and heat-exchanger pipeline, and etching apparatus reduces output.Glycerine at high temperature easily decomposes other organic impurities such as producing aldehydes simultaneously, reduces the purity of gathering glycerine.
The utility model content
The technical problems to be solved in the utility model provides the black pin destilling tower still of a kind of glycerine, can prevent that glycerine from deceiving pin coking, curing, improve distillation efficiency, and can suppress the generation of polymerization glycerine in the still-process, improve the yield and the purity of glycerine, prolonged the service life of destilling tower still simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of glycerine is deceived pin destilling tower still, main body is the tower still, have the glycerin vapor outlet at this tower still top, the bottom has slag notch, the sidewall of described tower still is provided with feed pipe, and its innovative point is: described tower still bottom is evenly distributed with the heating tube of some vertical direction, and described heating tube is connected with jet chimney; Described feed pipe stretches into and extends to the bottom of tower still from tower still middle part.
Further, described heating tube bottom is provided with the water storage bag, and the outlet pipe of described water storage bag connects and composes closed circuit by heat exchanger and jet chimney.
Further, the bottom of described tower still is connected with the throttled steam pipeline.
Further, the sidewall of described tower still is connected with the pipeline that purges steam.
Advantage of the present utility model is: adopt steam-heating pipe, its heating-up temperature is constant in 200 ℃, and it is little to fluctuate, and has avoided the coking curing of the black pin of glycerine in the still-process.The end of the charging aperture of tower still is positioned at below the black pin liquid level of glycerine of tower still during use, unexpected expanded by heating when avoiding the black pin of glycerine of normal temperature to enter the tower still, and splash causes curing to tower still inwall.Heating tube bottom is provided with the water storage bag, and the outlet pipe of water storage bag connects and composes closed circuit by heat exchanger and jet chimney, and vapours stores in heating tube until being cooled to water always like this, has reduced unnecessary thermal losses, has improved the steam utilization rate.The throttled steam pipeline can reduce the boiling point of the black pin of glycerine, makes glycerine be difficult for taking place polymerization and decomposition reaction, improves the rate that makes of glycerine.Purge steam and to reduce the viscosity of the black pin of glycerine, be convenient to the discharging of final residuum.
Description of drawings
Accompanying drawing is the structural representation of the black pin destilling tower still of the utility model glycerine.
The specific embodiment
As shown in drawings, comprise tower still 1, glycerin vapor outlet 2, slag notch 3, feed pipe 4, heating tube 5, jet chimney 6, water storage bag 7, heat exchanger 9, throttled steam pipeline 10, pipeline 11 purges steam.
Above-mentioned tower still 1 top has the glycerin vapor outlet 2 that is connected with vacuum interface, and the bottom has slag notch 3, and sidewall is provided with feed pipe 4, is provided with some heating tubes 5 that are connected with jet chimney 6 in the cavity.The black pin raw material of glycerine can enter the inner chamber of tower still 1 from feed pipe 4, described heating tube 5 vertically is evenly distributed on the bottom of tower still 1, superheated steam enters in the heating tube 5 by jet chimney 6, heat with the black pin of glycerine around the heating tube 5, make the glycerine in the black pin of glycerine at high temperature vaporize in the top of tower still 1, and the outlet 2 of the glycerin vapor by the top is by the vacuum sucking-off, and the glycerine of vaporization collects through being condensed into liquid state.Because maintaining about 200 ℃ of the temperature stabilization of steam prevents coking, the curing of the black pin of glycerine, avoids it attached on tower still 1 and the heating tube 5, the service life of having improved heat transfer efficiency and equipment.The temperature of steam is higher than the boiling point of glycerine, and is lower than the polymeric reaction temperature of glycerine, has reduced the generation of the black pin polymerization glycerine in still-process of glycerine, has improved the yield of glycerine and the quality of product.
Described heating tube 5 bottoms are provided with water storage bag 7, and the outlet pipe 8 of described water storage bag 7 connects and composes closed circuit by heat exchanger 9 and jet chimney 6.After the steam in the heating tube 5 is cooled to condensed water, flow into water storage bag 7, the condensed water in the water storage bag 7 is heated into steam and enters in the heating tube 5 by jet chimney 6 by in outlet pipe 8 inflow heat exchangers 9 in heat exchanger 9.Steam was stored in the heating tube 5 before being condensed into water always, did not give off atmosphere, had made full use of the heat energy of steam, had improved the service efficiency of steam.
The feed pipe 4 of above-mentioned tower still 1 stretches into and extends to the bottom of tower still 1 from tower still 1 middle part.When having avoided the black pin of glycerine of normal temperature to enter tower still 1, expanded by heating, splash causes curing to the top of tower still, influences the service life of equipment.
The bottom of tower still 1 is connected with throttled steam pipeline 10, is used to reduce the boiling point of the black pin of glycerine, makes that the glycerine in the black pin of glycerine is difficult for glycerol polymerization and decomposition reaction take place, and further improves the rate that makes of glycerine.Its principle is: the total pressure P in the tower still 1 equals the summation of glycerin vapor pressure P1 and water vapour pressure P2.In tower still 1, feed steam by throttled steam pipeline 10, and tower still 1 total pressure remains unchanged, thereby reduced the pressure of glycerin vapor, reach the purpose that reduces glycerine boiling point in the black pin of glycerine.
The sidewall of tower still 1 also is connected with the pipeline 11 that purges steam, and feeds steam by the pipeline 11 that purges steam in the black pin of glycerine of tower still 1 bottom, can reduce the viscosity of the black pin of glycerine, is convenient to the discharging of final residuum.
Claims (4)
1. a glycerine is deceived pin destilling tower still, main body is the tower still, have the glycerin vapor outlet at this tower still top, the bottom has slag notch, the sidewall of described tower still is provided with feed pipe, it is characterized in that: described tower still bottom is evenly distributed with the heating tube of some vertical direction, and described heating tube is connected with jet chimney; Described feed pipe stretches into and extends to the bottom of tower still from tower still middle part.
2. a kind of glycerine according to claim 1 is deceived pin destilling tower still, it is characterized in that: described heating tube bottom is provided with the water storage bag, and the outlet pipe of described water storage bag connects and composes closed circuit by heat exchanger and jet chimney.
3. a kind of glycerine according to claim 1 is deceived pin destilling tower still, and it is characterized in that: the bottom of described tower still is connected with the throttled steam pipeline.
4. a kind of glycerine according to claim 1 is deceived pin destilling tower still, and it is characterized in that: the sidewall of described tower still is connected with the pipeline that purges steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202171199U CN201586397U (en) | 2009-09-23 | 2009-09-23 | Glycerol polishing agent distillation column kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202171199U CN201586397U (en) | 2009-09-23 | 2009-09-23 | Glycerol polishing agent distillation column kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586397U true CN201586397U (en) | 2010-09-22 |
Family
ID=42746164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202171199U Expired - Fee Related CN201586397U (en) | 2009-09-23 | 2009-09-23 | Glycerol polishing agent distillation column kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201586397U (en) |
-
2009
- 2009-09-23 CN CN2009202171199U patent/CN201586397U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20140923 |
|
| EXPY | Termination of patent right or utility model |