CN202157030U - Rectification device for reclaiming alcohol - Google Patents
Rectification device for reclaiming alcohol Download PDFInfo
- Publication number
- CN202157030U CN202157030U CN201120278561XU CN201120278561U CN202157030U CN 202157030 U CN202157030 U CN 202157030U CN 201120278561X U CN201120278561X U CN 201120278561XU CN 201120278561 U CN201120278561 U CN 201120278561U CN 202157030 U CN202157030 U CN 202157030U
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- tower
- liquor
- alcohol
- rectification
- heater
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Abstract
The utility model discloses a rectification device for reclaiming alcohol. The rectification device comprises a rectification tower, a tower kettle heater, a condenser, a buffer tank and a reflux pump, and further comprises a wine dilution tank, a liquor feed pump and an external circulating pre-heater, wherein the tower kettle heater is arranged at the bottom of the rectification tower; the condenser is used for condensing distillate at the top of the rectification tower; the buffer tank is connected with the condenser; the reflux pump is used for pumping part of liquor in the buffer tank back to the top of the rectification tower, purified alcohol is stored in the wine dilution tank; the liquor outlet of the wine dilution tank is connected with the liquor inlet of the external circulating pre-heater through the liquor feed pump and a pipeline; and the liquor outlet of the external circulating pre-heater is connected with a rectification tower liquor inlet in the middle of the rectification tower. The device is used for rectifying alcohol, and has the advantages that the production running cost can be reduced; the energy consumption is reduced; the reclaiming concentration of alcohol can reach 95 percent; and the residue of alcohol in residual liquor is smaller than 0.5 percent. Therefore, the environment-friendly requirements are met.
Description
Technical field
The utility model relates to a kind of rectifier unit, particularly relates to a kind of recovery ethanol and uses rectifier unit.
Background technology
In traditional pharmacy procedure, often the high concentration ethanol of needs more than 93% will produce a large amount of Different concentrations of alcohol dilute solutions like this as extraction solvent after use.For energy-conservation, consumption reduction with recycle, usually alcohol dilute solution is carried out rectification and purification, so that recycling.Two kinds of rectification and purification methods are arranged at present, i.e. batch fractionating and continuous rectification in pharmacy corporation.
The production process of continuous rectification is: during operation, liquid stock adds in the rectifying tower continuously.Take out partially liq as bottom product (being called the still raffinate) from reboiler continuously; Partially liq is vaporized, and produces rising steam, successively through each layer column plate or filler.Overhead vapours gets into condensing surface by all condensations, sends partial condensation liquid back to cat head as withdrawing fluid with pump (or relying on the power effect for support), and rest part is as overhead product (being called distillate) extraction.
Usually, that layer column plate that liquid stock is added is called feed plate.Tower section more than feed plate, the difficult volatiles in the rising vapour phase transmits in liquid phase, and the content of volatile components increases gradually, has finally reached the refining of rising vapour phase, thereby has been called rectifying section.Tower section (comprising feed plate) below the feed plate has been accomplished the proposition of volatile components in the dropping liq, thereby improves the yield of cat head volatile components, obtains high-load difficult volatiles-bottom product simultaneously, thereby is referred to as stripping section.This mode is applicable to continuous production in enormous quantities, and shortcoming is that running expense is higher.
The production process of batch fractionating and continuous rectification difference are: liquid stock once adds in the rectifying still, thereby batch fractionating tower has only rectifying section and do not have stripping section.In rectifying, the still liquid of rectifying still is formed constantly variation, and under rising quantity of steam at the bottom of the tower and trim the top of column liquid measure constant condition, the composition of distillate also reduces gradually.After the still liquid of rectifying still reached the regulation composition, distillation operation promptly was stopped.The shortcoming of this mode is to be only applicable to small serial production, and not only energy consumption is high, and production efficiency is lower.
In addition, for reclaiming the alcoholic acid distillation operation in the present production, the residual liquid discharge concentration of above-mentioned two kinds of methods has all surpassed emission standard, so raffinate can not directly discharge, and needs discharging again after WWT is up to standard, thereby has increased production cost.
Summary of the invention
The technical problem that the utility model will solve provides a kind of production efficiency height, running expense is low and the rectifying tower of raffinate allow compliance with emission standards.
For this reason, the technical scheme of the utility model is following:
A kind of recovery ethanol is used rectifier unit; Comprise rectifying tower, be arranged in tower kettle heater at the bottom of this rectifying tower, overhead product is carried out condenser condensing, connects the surge tank of condensing surface and is used for the partially liq of surge tank is pumped to the reflux pump of rectifying tower cat head; Also comprise rare wine jar, liquid-feeding pump and outer circulation preheater; Store the ethanol of being purified in said rare wine jar; The liquid outlet of rare wine jar is through the fluid inlet of liquid-feeding pump and pipe connection to outer circulation preheater, the liquid outlet of said outer circulation preheater through pipe connection to the rectifying tower fluid inlet that is positioned in the middle part of the said rectifying tower.
Use this device that ethanol is carried out rectifying, can reduce the production run cost, cut down the consumption of energy, alcoholic acid reclaims concentration can reach 95%, and the ethanol in the raffinate is residual less than 0.5%, satisfies environmental requirement.
Description of drawings
Fig. 1 is the structural representation of the recovery ethanol of the utility model with rectifier unit.
Embodiment
Below in conjunction with accompanying drawing the recovery ethanol of the utility model structure with rectifier unit is elaborated.
As shown in Figure 1; This rectifier unit comprises rectifying tower 1, is arranged in the tower kettle heater 2 of this rectifier bottoms, overhead product is carried out condenser condensing 3, connects the surge tank 4 of condensing surface 3 and is used for the partially liq of surge tank 4 is pumped to the reflux pump 5 of rectifying tower cat head; Also comprise rare wine jar 6, liquid-feeding pump 7 and outer circulation preheater 8; Store the ethanol of being purified in rare wine jar 6; The liquid outlet of rare wine jar 6 is connected to the fluid inlet of outer circulation preheater 8 through liquid-feeding pump 7 and pipeline (among the figure sign), the liquid outlet of outer circulation preheater 8 through pipe connection to the rectifying tower fluid inlet that is positioned at the rectifying tower middle part.
This rectifier unit can batch production, also can 24 hours continuous production.In use; Control the liquid outlet quantity of rare wine jar well; Diluted Alcohol is heated to about 70 ℃ at the outer circulation preheater and refluxes through condensing surface behind the process tower still heating evaporation in the back entering rectifying tower again, and through reflux pump control reflux ratio, overhead product begins extraction after reaching concentration; Production is sent into pure wine storage tank stores behind surge tank, accomplish whole rectifying process.
Claims (1)
1. a recovery ethanol is used rectifier unit; Comprise rectifying tower, be arranged in tower kettle heater at the bottom of this rectifying tower, overhead product is carried out condenser condensing, connects the surge tank of condensing surface and is used for the partially liq of surge tank is pumped to the reflux pump of rectifying tower cat head; It is characterized in that: also comprise rare wine jar, liquid-feeding pump and outer circulation preheater; Store the ethanol of being purified in said rare wine jar; The liquid outlet of rare wine jar is through the fluid inlet of liquid-feeding pump and pipe connection to outer circulation preheater, the liquid outlet of said outer circulation preheater through pipe connection to the rectifying tower fluid inlet that is positioned in the middle part of the said rectifying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120278561XU CN202157030U (en) | 2011-08-02 | 2011-08-02 | Rectification device for reclaiming alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120278561XU CN202157030U (en) | 2011-08-02 | 2011-08-02 | Rectification device for reclaiming alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157030U true CN202157030U (en) | 2012-03-07 |
Family
ID=45764672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120278561XU Expired - Fee Related CN202157030U (en) | 2011-08-02 | 2011-08-02 | Rectification device for reclaiming alcohol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497986A (en) * | 2016-12-29 | 2017-03-15 | 吉林化工学院 | A kind of method that vacuum fermentation couples production alcohol fuel with rectification |
-
2011
- 2011-08-02 CN CN201120278561XU patent/CN202157030U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497986A (en) * | 2016-12-29 | 2017-03-15 | 吉林化工学院 | A kind of method that vacuum fermentation couples production alcohol fuel with rectification |
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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: 20120307 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |