CN106316791A - Alcohol preparing device and method based on the double crude distillation column and double rectification column - Google Patents
Alcohol preparing device and method based on the double crude distillation column and double rectification column Download PDFInfo
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- CN106316791A CN106316791A CN201610709292.5A CN201610709292A CN106316791A CN 106316791 A CN106316791 A CN 106316791A CN 201610709292 A CN201610709292 A CN 201610709292A CN 106316791 A CN106316791 A CN 106316791A
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- tower
- wine
- rectifying column
- dregs
- foreshot
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The alcohol preparing device and method based on the double crude distillation column and double rectification column comprises prefractionator I (2) connected with the input port of complete fermented mash, prefractionator II (1) set to be respectively connected with the input port of complete fermented mash and output port of prefractionator I (2), rectification column II (4) set to be connected with the output port of prefractionator II (1), foreshot recovery column (8) set to be connected with the output port of rectification column (4), dilution column (6) set to be respectively connected with the output port of prefractionator I (2) and the output port of foreshot recovery column (8), rectification column I (3) set to be respectively connected with the output port of prefractionator I (2) and the output port of dilution column (6), and methanol separation column (7) set to be connected with the output port of rectification column I (3). It realizes alcohol-air separation of complete fermented mash through prefractionator II (1), prefractionator I (2), rectification column I (3) and rectification column II (4), and achieves alcohol purification through dilution column (6), methanol separation column (7) and foreshot recovery column (8), thus reducing energy consumption.
Description
One, technical field
The present invention relates to a kind of alcohol for apparatus and method, a kind of ethanol preparation facilitiess based on double thick and double essence towers
And method.
Two, background technology
The main uses of ethanol has: solvent organic synthesis；The crystallization of various compounds；Detergent；Extractant, edible ethanol are permissible
Concocted white spirit, spray paint as binding agent, nitro, varnish, cosmetics, ink, paint stripper, etc. solvent and pesticide, medicine, rubber
The manufacture raw material of glue, plastics, staple fibre, detergent etc., can also do antifreezing agent, fuel, disinfectant etc., therefore ethanol is one
Plant important raw material, in the existing device for producing ethanol, be the most all that top grade Alcohol Production is many with five tower triple effects distillations
Process unit is main, and this process unit is 2.4 tons of steam, also has double thick tower seven tower energy-saving distilling process device to produce simultaneously
Top grade ethanol and ordinary alcohol, the yield of top grade ethanol and ordinary alcohol is respectively 50%, and when producing top grade ethanol, consumption vapour 1.8 tons, raw
Consumption vapour 1.2 tons when producing ordinary alcohol, double thick tower seven tower of observable index that five tower triple effect distillation process units produce top grade ethanol is energy-conservation
Distillation process unit produces top grade ethanol many consumption steam more than 30%, but energy consumption is higher.
Based on existing technical problem, technical characteristic and technique effect, make the application technical scheme of the present invention.
Three, summary of the invention
The object of the present invention is a kind of ethanol preparation facilities based on double thick and double essence towers,
The object of the present invention is a kind of alcohol Preparation Method based on double thick and double essence towers.
In order to overcome above-mentioned technical disadvantages, it is an object of the invention to provide a kind of alcohol based on double thick and double essence towers standby
Apparatus and method, therefore reduce energy consumption.
For reaching above-mentioned purpose, the present invention adopts the technical scheme that: include and the input port of maturing fermentation mash
The wine with dregs tower I of connection, be set to wine with dregs tower II that port with the input port of maturing fermentation mash and wine with dregs tower I output respectively connects,
The rectifying column II being set to connect with the output port of wine with dregs tower II, the foreshot being set to connect with the output port of rectifying column II return
The dilution tower that receive tower, is set to connect with port and the output port of foreshot's recovery tower of wine with dregs tower I output respectively, it is set to distinguish
With wine with dregs tower I output port and dilution tower output port connect rectifying column I, be set to rectifying column I output port company
Logical eparating methanol tower.
Owing to devising wine with dregs tower II, wine with dregs tower I, rectifying column I, rectifying column II, dilution tower, eparating methanol tower and foreshot's recovery tower,
By wine with dregs tower II, wine with dregs tower I, rectifying column I and rectifying column II, maturing fermentation mash is carried out fume to separate, by dilution tower, piptonychia
Alcohol tower and foreshot's recovery tower carry out purification processes to fume, not in use by single wine with dregs tower and single rectifying column, therefore reduce energy consumption.
The present invention devises, and produces the mode of ethanol wine with dregs tower II, wine with dregs tower I, rectifying column I, essence according to double thick and double essence towers
Evaporate tower II, dilution tower, eparating methanol tower and foreshot's recovery tower to be interconnected.
The present invention devises, and also includes
Rectifying column I auxiliary condenser I, rectifying column I auxiliary condenser II, rectifying column I auxiliary condenser III, light wine preheater, essence
Evaporate tower I auxiliary reflux tank, rectifying column I auxiliary reflux pump, rectifying column I reflux pump, rectifying column I return tank, rectifying column I feed pump,
Wine with dregs tower II distiller grains pump, essence tower waste water pump, wine with dregs tower II reboiler I, flow separator II, wine with dregs tower II reboiler II, wine with dregs tower II
Feed pump, wine with dregs tower II feed preheater,
Rectifying column II auxiliary condenser I, rectifying column II auxiliary condenser II, rectifying column II auxiliary condenser III, rectifying column II time
Stream tank, rectifying column II reflux pump, rectifying column II finished product cooler,
Mash wine vapour preheater, thick wine pump, crude wine preheater, wine with dregs tower I distiller grains pump, two grades of preheaters of mash, mash three grades preheating
Device, wine with dregs tower I reboiler I, flow separator I, wine with dregs tower I reboiler II,
Impurity tower, impurity tower auxiliary condenser I, impurity tower auxiliary condenser II, impurity tower auxiliary condenser III, impurity tower reflux
Tank, impurity tower reflux pump, impurity tower feed preheater, miscellaneous wine pump, miscellaneous wine tank,
Dilution tower auxiliary condensation, dilution tower return tank, dilution tower reflux pump, dilution tower reboiler I, dilution tower reboiler II,
Eparating methanol tower auxiliary condenser I, eparating methanol tower auxiliary condenser II, eparating methanol tower auxiliary condenser III, eparating methanol tower are auxiliary
Help condenser IV, eparating methanol tower return tank, eparating methanol tower reflux pump, quality liquor sperm pump, high-quality finished product cooler, eparating methanol tower again
Boiling device,
Foreshot's recovery tower auxiliary condenser I, foreshot's recovery tower auxiliary condenser II, foreshot's recovery tower auxiliary condenser III, foreshot
Recovery tower reboiler, foreshot's recovery tower discharging pump, foreshot's recovery tower reflux pump, foreshot's recovery tower return tank, foreshot's recovery tower enter
Material pump, foreshot's recovery tower head tank, foreshot's recovery tower feed preheater,
Degassing stages condenser,
Full gear section condenser I, full gear section condenser II, full gear section condenser III, full gear section condenser IV, full gear section return tank,
Full gear section reflux pump,
Vacuum buffer tank, vacuum pump, sealing water cooler, vacuum water pot,
Alcohols,fusel cooler, Alcohols,fusel separator,
Lye pump, alkali liquid tank,
Permanganic acid potassium pump, potassium permanganate tank,
The input port of maturing fermentation mash is set to pass sequentially through mash wine vapour preheater, crude wine preheater, mash two grades in advance
Three grades of preheaters of hot device and mash connect with the input port of the top degassing stages of wine with dregs tower I, the output of the top degassing stages of wine with dregs tower I
Port is set to connect with the input port of flow separator I, and the input port of flow separator I is respectively set to and wine with dregs tower I
Input port connection connect with by the input port of wine with dregs tower II feed pump with wine with dregs tower II feed preheater, the bottom of wine with dregs tower I
Port is set to be connected with the input port of wine with dregs tower I by wine with dregs tower I distiller grains pump, and the thick wine of the enriching section of wine with dregs tower I goes out port respectively
It is set to be connected and by thick wine pump and the heat of crude wine preheater with the input port of light wine preheater by rectifying column I feed pump
Switching port connects with the input port of dilution tower, and the alcohol steam output port at the top of rectifying column II is set to and wine with dregs tower I
Reboiler I connects with wine with dregs tower I reboiler II,
The output port of wine with dregs tower II feed preheater is set to connect with the input port on the top of wine with dregs tower II, the bottom of wine with dregs tower II
Output port is set to connect with wine with dregs tower II feed preheater with essence tower waste water pump, and the output port of wine with dregs tower II is set to and rectification
The input port connection of tower II, the output port on the top of wine with dregs tower II is set to by flow separator II, wine with dregs tower II reboiler
II connects with the heat exchange port of wine with dregs tower I with wine with dregs tower II feed pump, and the heat exchange port of wine with dregs tower II is set to and rectifying column II
Alcohol steam output port connects,
The output port of the distillation and concentration section of rectifying column II is respectively set to auxiliary with rectifying column II auxiliary condenser I, rectifying column II
Condenser II is helped to connect with rectifying column II auxiliary condenser III, rectifying column II auxiliary condenser I, rectifying column II auxiliary condenser II
It is set to the output port of rectifying column II auxiliary condenser III connect with foreshot's recovery tower head tank, the upper side of rectifying column II
Line output terminal mouth is set to connect with rectifying column II finished product cooler, and the bottom output port of rectifying column II is set to pass through rectification
Tower II return tank connects with the input port of foreshot's recovery tower with rectifying column II reflux pump, and the heat exchange port of rectifying column II is arranged
Connect for the alcohol steam output port with rectifying column II,
The output port of foreshot's recovery tower head tank is set to by foreshot's recovery tower feed pump and foreshot's recovery tower feeding preheating
The input port connection of device, the auxiliary cold port of foreshot's recovery tower is set to foreshot's output port, and the middle and upper part of foreshot's recovery tower is defeated
Go out port to be set to by foreshot's recovery tower discharging pump and foreshot's recovery tower auxiliary condenser I, foreshot's recovery tower auxiliary condenser
II, foreshot's recovery tower auxiliary condenser III connects, foreshot's recovery tower auxiliary condenser I, foreshot's recovery tower auxiliary condenser II, wine
The output port of head recovery tower auxiliary condenser III is set to finished product ordinary alcohol output port, the middle part output of foreshot's recovery tower
Port is set to connect with the input port of Alcohols,fusel separator, and the bottom output port of foreshot's recovery tower is set to pass through foreshot
Recovery tower reflux pump connects with the input port of foreshot's recovery tower with foreshot's recovery tower return tank, the wine at the top of foreshot's recovery tower
Essence steam output end mouth is set to connect with dilution tower reboiler II, and dilution tower reboiler II is set to and the heat exchange of dilution tower
Port connects, and the heat exchange port of foreshot's recovery tower connects with external thermal source,
The thick wine input port that the input port of dilution tower is set to wine with dregs tower I connects, and the bottom output port of dilution tower is arranged
For connecting with the input port of light wine preheater, the output port of light wine preheater is set to by rectifying column I feed pump and essence
Evaporating the input port connection of tower I, the top output port of dilution tower is set to by dilution tower return tank and dilution tower reflux pump
Connecting with the input port of dilution tower, dilution tower auxiliary condensation is set to connect with dilution tower return tank, the top of foreshot's recovery tower
The alcohol steam output port in portion is set to connect with dilution tower reboiler II, and dilution tower reboiler II is set to and dilution tower
Heat exchange port connects,
The output port of light wine preheater is set to be connected with the input port of rectifying column I by rectifying column I feed pump, rectifying column
The middle and lower part side line output port of I is set to connect with Alcohols,fusel separator, and the middle part output port of rectifying column I is set to pass through
Rectifying column I auxiliary reflux tank, rectifying column I auxiliary reflux pump, rectifying column I reflux pump and rectifying column I return tank are defeated with rectifying column I
Inbound port connects, and rectifying column I auxiliary condenser I, rectifying column I auxiliary condenser II and rectifying column I auxiliary condenser III set respectively
Be set to connect with rectifying column I auxiliary reflux tank and rectifying column I return tank, the top side line output terminal mouth of rectifying column I be set to
The input port connection of eparating methanol tower, the bottom port of rectifying column I be set to successively with the heat exchange of input port of dilution tower
Port connects with the thinned water port of dilution tower, and the bottom port of rectifying column I is set to wine with dregs tower I reboiler I, wine with dregs tower I again
Boiling device II, wine with dregs tower II reboiler I connect with wine with dregs tower II reboiler II,
The middle part output port of eparating methanol tower is set to by eparating methanol tower return tank and eparating methanol tower reflux pump and eparating methanol tower
Input port connection, eparating methanol tower auxiliary condenser I, eparating methanol tower auxiliary condenser II, eparating methanol tower auxiliary condenser III
Being respectively set to eparating methanol tower auxiliary condenser IV connect with eparating methanol tower return tank, the bottom output port of eparating methanol tower sets
Being set to be connected with high-quality finished product cooler by quality liquor sperm pump, the fume output port of dilution tower is set to eparating methanol tower again
Boiling device connection, the heat exchange port that eparating methanol tower reboiler is set to eparating methanol tower connects,
Foreshot's input port is set to the connection of impurity tower feed preheater input port, and impurity tower feed preheater input port sets
Being set to connect with the input port of impurity tower, the middle part input port of impurity tower is set to by impurity tower reflux pump and impurity tower
Return tank connects with the input port of impurity tower, impurity tower auxiliary condenser I, impurity tower auxiliary condenser II and impurity tower auxiliary
Condenser III is set to connect with impurity tower return tank, and the cold output port in tower end of impurity tower is set to by miscellaneous wine pump and miscellaneous wine
Tank connects, and the top output port mouth of impurity tower is set to connect with the input port of dilution tower, and the fume tail gas of rectifying column II is defeated
Go out the heat exchange port that port is set to impurity tower to connect,
The output port of the degassing stages of wine with dregs tower I is set to the input by full gear section reflux pump and full gear section return tank and wine with dregs tower I
Port connects, degassing stages condenser, full gear section condenser I, full gear section condenser II, full gear section condenser III and the condensation of full gear section
Device IV is set to connect with full gear section return tank,
Wine with dregs tower II, wine with dregs tower I, rectifying column I, rectifying column II, impurity tower, dilution tower, eparating methanol tower and the exhaust end of foreshot's recovery tower
Mouth is set to the input port with vacuum buffer tank and connects, and the output port of vacuum buffer tank is set to by vacuum pump and sealing
Water cooler connects with vacuum water pot,
The input port of Alcohols,fusel separator is set to connect with Alcohols,fusel cooler, and alkali liquid tank is set to by lye pump and essence
Evaporating tower II connection, potassium permanganate tank is set to be connected with rectifying column II by permanganic acid potassium pump.
The present invention devises, and wine with dregs tower II, rectifying column II, impurity tower and dilution tower are set to gerotor type tower body, and wine with dregs tower I is with de-
Methanol column is set to negative-pressure type tower body, rectifying column I and foreshot's recovery tower and is set to positive-pressure type tower body.
The present invention devises, and wine with dregs tower II is set to have the tower body of 25 laminates, wine with dregs tower I is set to have ten laminates
Tower body, rectifying column I are set to have the tower body of 88 laminates, rectifying column II is set to have the tower body of 90 laminates, impurity
Tower is set to have the tower body of 60 laminates, dilution tower is set to have the tower body of 50 laminates, eparating methanol tower is set to have
The tower body of 70 laminates and foreshot's recovery tower are set to the tower body with 70 laminates.
The present invention devises, a kind of alcohol Preparation Methods based on double thick and double essence towers, its step:
One, from fermentation workshop section maturing fermentation wine with dregs through crude wine preheater, two grades of preheaters 2 of mash and three grades of preheaters of mash
Entering the top degassing stages of wine with dregs tower I after preheating, the mash after degassing enters feeding-distribution device, mash is divided into two parts, a part
Entering wine with dregs tower II after being pumped up the preheating of wine with dregs tower II distiller grains heat exchanger, another part flows into wine with dregs tower I, will by distillation in wine with dregs tower I
Thick wine in mash separates with grain liquid, and grain liquid is discharged at tower bottom, and crude alcohol steam enters enriching section, is condensed at end by distillation
Device exclusive segment impurity, extracts thick wine to thick wine tank, enters rectifying column I and dilute after the preheated device of crude alcohol in enriching section middle and lower part
Releasing tower, the duty of wine with dregs tower I is negative pressure, and the mode of heating of wine with dregs tower I is that the alcohol steam at rectifying column II top passes through reboiler
Heat supply, the working method of reboiler is hydrocone type, and heating carrier is rectifying column II waste water,
Two, the part mash after wine with dregs tower I takes off vapour enters the top of wine with dregs tower II after being pumped up distiller grains preheating, through distillation by karusen
Alcoholic constituent separate with distiller grains, distiller grains are discharged outside tower, and alcoholic constituent rises and enters rectifying column II, in rectification with the form of gas phase
Tower II carries out distillation and concentration, at auxiliary condenser to extract foreshot's form despumation, at the upper side line drawing finished product of tower
Ordinary alcohol, to be extracted into the faints concentration bottom the size control tower of product alcohol amount, light wine at the bottom of tower is pumped up returning into foreshot
Receive tower, the alcohol steam at rectifying column II top, by reboiler to wine with dregs tower I heat supply, the thermal source of wine with dregs tower II and rectifying column II from
The alcohol steam of rectifying column I, the duty of wine with dregs tower II and rectifying column II is normal pressure, and the working method of reboiler is hydrocone type,
Heating carrier is the waste water of rectifying column I,
Three, the charging of foreshot's recovery tower comes from the light wine of the light wine bottom rectifying column II and Alcohols,fusel separator, through distillation
The auxiliary cold extraction foreshot of tower, extract finished product ordinary alcohol in the middle and upper part of tower, extract Alcohols,fusel at the middle part of tower and enter fusel
Oil eliminator, the light wine after separation enters back into foreshot's recovery tower through pump, and the alcohol steam at foreshot's recovery tower top is by dilution tower
Reboiler uses primary steam as the thermal source of dilution tower, the heat supply of foreshot's recovery tower to dilution tower heat supply, and duty is just
Pressure,
Four, dilution tower utilizes the impurity such as the acetaldehyde characteristic that rectification coefficient increases under ethanol low concentration, makes impurity at the top of tower
Concentrating and assemble, remove in the way of extracting foreshot and emptying, the charging of dilution tower is the thick wine from wine with dregs tower I, is existed by washing
The bottom of tower obtains the light wine that comparison is pure, enters rectifying column I after being pumped up the heating of rectifying column I waste water preheater, dilution tower
Thermal source be foreshot's recovery tower top alcohol steam by dilution tower reboiler give dilution tower heat supply, duty is normal pressure,
Five, rectifying column I duty is malleation, and rectifying column I charging is the light wine from dilution tower bottom, through distillation in tower
Bottom side take-off Alcohols,fusel, in auxiliary condenser despumation in the way of extracting foreshot and emptying, takes at top of tower side line
Go out semi-finished product ethanol enter eparating methanol tower, remove methanol further, waste water the bottom of tower discharge, preheating water scrubber light wine after one
Part is as the thinned water of dilution tower, and a part goes the carrier of wine with dregs tower reboiler to produce Secondary-steam heating wine with dregs tower, remainder
It is allocated as discharging for waste water,
Six, eparating methanol tower utilizes the methanol characteristic that its rectification coefficient increases when alcohol concentration height, at the evaporator overhead condenser end of tower
The cold form to extract foreshot removes methanol, extracts top grade ethanol in the bottom of tower.The mode of heating of tower is to utilize dilution tower
Fume is heated by reboiler, and the duty of dilution tower is negative pressure,
Seven, the foreshot of each tower is focused on by impurity tower, and head impurty concentrates concentration further, contains at tower end cold extraction impurity
Measure higher industrial alcohol, obtain the preferable ethanol of quality in tower reactor, be pumped up dilution tower such as and purify further, improve top grade wine
The yield of essence, the heating of impurity tower is that the fume tail gas utilizing rectifying column II heats, and duty is normal pressure.
In the technical program, the wine with dregs tower II of ethanol, wine with dregs tower I, rectifying column I, rectifying column II, dilute produced by double thick and double essence towers
Releasing tower, eparating methanol tower and foreshot's recovery tower is important technical characteristic, in ethanol preparation facilitiess based on double thick and double essence towers and side
In the technical field of method, having novelty, creativeness and practicality, the term in the technical program is all to use this technology
Patent documentation in field explains and understands.
Four, accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the schematic diagram of the present invention:
Fig. 2 is that the annexation of the wine with dregs tower II 1 of the present invention, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4 and degassing stages condenser 9 is shown
It is intended to:
Fig. 3 is the impurity tower 5 of the present invention, dilution tower 6, eparating methanol tower 7 and the annexation schematic diagram of foreshot's recovery tower 8.
Five, detailed description of the invention
According to guidelines for examination, to used in the present invention such as " having ", " comprising " and " including " term should be understood to not
Allot other element one or more or the existence of a combination thereof or interpolation.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
If additionally, the most non-structure of technical characteristic involved in invention described below difference embodiment
Become conflict just can be combined with each other.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 is one embodiment of the present of invention, illustrates the present embodiment in conjunction with accompanying drawing, a kind of based on double thick and double essence towers
Ethanol preparation facilities, include
Rectifying column I 3, rectifying column I auxiliary condenser I 31, rectifying column I auxiliary condenser II 32, rectifying column I auxiliary condenser III
33, light wine preheater 34, rectifying column I auxiliary reflux tank 35, rectifying column I auxiliary reflux pump 36, rectifying column I reflux pump 37, rectification
Tower I return tank 38, rectifying column I feed pump 39,
Wine with dregs tower II 1, wine with dregs tower II distiller grains pump 11, essence tower waste water pump 12, wine with dregs tower II reboiler I 13, flow separator II 14, wine with dregs tower II
Reboiler II 15, wine with dregs tower II feed pump 16, wine with dregs tower II feed preheater 17,
Rectifying column II 4, rectifying column II auxiliary condenser I 41, rectifying column II auxiliary condenser II 42, rectifying column II auxiliary condenser
III 43, rectifying column II return tank 44, rectifying column II reflux pump 45, rectifying column II finished product cooler 46,
Wine with dregs tower I 2, mash wine vapour preheater 21, thick wine pump 22, crude wine preheater 23, wine with dregs tower I distiller grains pump 24, mash two grades preheating
Device 25, three grades of preheaters 26 of mash, wine with dregs tower I reboiler I 27, flow separator I 28, wine with dregs tower I reboiler II 29,
Impurity tower 5, impurity tower auxiliary condenser I 51, impurity tower auxiliary condenser II 52, impurity tower auxiliary condenser III 53, miscellaneous
Matter tower return tank 54, impurity tower reflux pump 55, impurity tower feed preheater 56, miscellaneous wine pump 57, miscellaneous wine tank 58,
Dilution tower 6, dilution tower auxiliary condensation 61, dilution tower return tank 62, dilution tower reflux pump 63, dilution tower reboiler I 64, dilute
Release tower reboiler II 65,
Eparating methanol tower 7, eparating methanol tower auxiliary condenser I 71, eparating methanol tower auxiliary condenser II 72, eparating methanol tower auxiliary condenser
III 73, eparating methanol tower auxiliary condenser IV 74, eparating methanol tower return tank 75, eparating methanol tower reflux pump 76, quality liquor sperm pump 77, excellent
Matter finished product cooler 78, eparating methanol tower reboiler 79,
Foreshot's recovery tower 8, foreshot's recovery tower auxiliary condenser I 81, foreshot's recovery tower auxiliary condenser II 82, foreshot's recovery tower are auxiliary
Condenser III 83, foreshot's recovery tower reboiler 84, foreshot's recovery tower discharging pump 85, foreshot's recovery tower reflux pump 86, foreshot is helped to return
Receive tower return tank 87, foreshot's recovery tower feed pump 88, foreshot's recovery tower head tank 89, foreshot's recovery tower feed preheater 810,
Degassing stages condenser 9,
Full gear section condenser I 91, full gear section condenser II 92, full gear section condenser III 93, full gear section condenser IV 94, full gear section
Return tank 95, full gear section reflux pump 96,
Vacuum buffer tank 101, vacuum pump 102, seal water cooler 103, vacuum water pot 104,
Alcohols,fusel cooler 201, Alcohols,fusel separator 202,
Lye pump 301, alkali liquid tank 302,
Permanganic acid potassium pump 401, potassium permanganate tank 402,
The input port of maturing fermentation mash is set to pass sequentially through mash wine vapour preheater 21, crude wine preheater 23, mash two
Level three grades of preheaters 26 of preheater 25 and mash connect with the input port of the top degassing stages of wine with dregs tower I 2, and the top of wine with dregs tower I 2 takes off
The output port of gas section is set to connect with the input port of flow separator I 28, and the input port of flow separator I 28 is respectively
It is set to connect with the input port of wine with dregs tower I 2 and by the input of wine with dregs tower II feed pump 16 with wine with dregs tower II feed preheater 17
Mouth connection, the bottom port of wine with dregs tower I 2 is set to be connected with the input port of wine with dregs tower I 2 by wine with dregs tower I distiller grains pump 24, wine with dregs tower I 2
The thick wine of enriching section go out port be respectively set to be connected with the input port of light wine preheater 34 by rectifying column I feed pump 39 and
Connected with the input port of dilution tower 6 with the heat exchange port of crude wine preheater 23 by thick wine pump 22, the top of rectifying column II 4
Alcohol steam output port be set to connect with wine with dregs tower I reboiler I 27 and wine with dregs tower I reboiler II 29,
The output port of wine with dregs tower II feed preheater 17 is set to connect with the input port on the top of wine with dregs tower II 1, wine with dregs tower II 1
Bottom output port is set to connect with wine with dregs tower II feed preheater 17 with essence tower waste water pump 12, and the output port of wine with dregs tower II 1 sets
Being set to connect with the input port of rectifying column II 4, the output port on the top of wine with dregs tower II 1 is set to by flow separator II
14, wine with dregs tower II reboiler II 15 connects with the heat exchange port of wine with dregs tower I 2 with wine with dregs tower II feed pump 16, the heat exchange end of wine with dregs tower II 1
Mouth is set to the alcohol steam output port with rectifying column II 4 and connects,
The output port of the distillation and concentration section of rectifying column II 4 is respectively set to and rectifying column II auxiliary condenser I 41, rectifying column II
Auxiliary condenser II 42 connects with rectifying column II auxiliary condenser III 43, and rectifying column II auxiliary condenser I 41, rectifying column II assist
Condenser II 42 is set to connect with foreshot's recovery tower head tank 89 with the output port of rectifying column II auxiliary condenser III 43, essence
The upper side line output terminal mouth evaporating tower II 4 is set to connect with rectifying column II finished product cooler 46, the bottom output of rectifying column II 4
Port is set to be connected with the input port of foreshot's recovery tower 8 with rectifying column II reflux pump 45 by rectifying column II return tank 44,
The alcohol steam output port that the heat exchange port of rectifying column II 4 is set to rectifying column II 4 connects,
The output port of foreshot's recovery tower head tank 89 is set to be fed by foreshot's recovery tower feed pump 88 and foreshot's recovery tower
The input port connection of preheater 810, the auxiliary cold port of foreshot's recovery tower 8 is set to foreshot's output port, foreshot's recovery tower 8
Middle and upper part output port is set to be reclaimed with foreshot's recovery tower auxiliary condenser I 81, foreshot by foreshot's recovery tower discharging pump 85
Tower auxiliary condenser II 82, foreshot's recovery tower auxiliary condenser III 83 connect, and foreshot's recovery tower auxiliary condenser I 81, foreshot return
Receive tower auxiliary condenser II 82, the output port of foreshot's recovery tower auxiliary condenser III 83 is set to finished product ordinary alcohol outfan
Mouthful, the middle part output port of foreshot's recovery tower 8 is set to connect with the input port of Alcohols,fusel separator 202, foreshot's recovery tower 8
Bottom output port be set to by foreshot's recovery tower reflux pump 86 and foreshot's recovery tower return tank 87 and foreshot's recovery tower 8
Input port connects, and the alcohol steam output port at the top of foreshot's recovery tower 8 is set to connect with dilution tower reboiler II 65,
Dilution tower reboiler II 65 is set to connect with the heat exchange port of dilution tower 6, and the heat exchange port of foreshot's recovery tower 8 is with external
Thermal source connects,
The thick wine input port that the input port of dilution tower 6 is set to wine with dregs tower I 2 connects, and the bottom output port of dilution tower 6 sets
Being set to connect with the input port of light wine preheater 34, the output port of light wine preheater 34 is set to be fed by rectifying column I
Pump 39 connects with the input port of rectifying column I 3, and the top output port of dilution tower 6 is set to by dilution tower return tank 62 He
Dilution tower reflux pump 63 connects with the input port of dilution tower 6, and dilution tower auxiliary condensation 61 is set to and dilution tower return tank 62
Connection, the alcohol steam output port at the top of foreshot's recovery tower 8 is set to connect with dilution tower reboiler II 65, and dilution tower is again
Boiling device II 65 is set to connect with the heat exchange port of dilution tower 6,
The output port of light wine preheater 34 is set to be connected with the input port of rectifying column I 3 by rectifying column I feed pump 39,
The middle and lower part side line output port of rectifying column I 3 is set to connect with Alcohols,fusel separator 202, the middle part outfan of rectifying column I 3
Mouth is set to by rectifying column I auxiliary reflux tank 35, rectifying column I auxiliary reflux pump 36, rectifying column I reflux pump 37 and rectifying column I
Return tank 38 connects with the input port of rectifying column I 3, rectifying column I auxiliary condenser I 31, rectifying column I auxiliary condenser II 32 and
Rectifying column I auxiliary condenser III 33 is respectively set to connect with rectifying column I auxiliary reflux tank 35 and rectifying column I return tank 38, essence
The top side line output terminal mouth evaporating tower I 3 is set to connect with the input port of eparating methanol tower 7, and the bottom port of rectifying column I 3 sets
It is set to connect with the heat exchange port of input port and the thinned water port of dilution tower 6 of dilution tower 6 successively, rectifying column I 3
Bottom port is set to and wine with dregs tower I reboiler I 27, wine with dregs tower I reboiler II 29, wine with dregs tower II reboiler I 13 and wine with dregs tower II reboiler
II 15 connections,
The middle part output port of eparating methanol tower 7 is set to by eparating methanol tower return tank 75 and eparating methanol tower reflux pump 76 and piptonychia
The input port connection of alcohol tower 7, eparating methanol tower auxiliary condenser I 71, eparating methanol tower auxiliary condenser II 72, eparating methanol tower assist
Condenser III 73 is respectively set to eparating methanol tower auxiliary condenser IV 74 connect with eparating methanol tower return tank 75, eparating methanol tower 7
Bottom output port be set to be connected with high-quality finished product cooler 78 by quality liquor sperm pump 77, dilution tower 6 fume output
Port is set to connect with eparating methanol tower reboiler 79, and eparating methanol tower reboiler 79 is set to the heat exchange end with eparating methanol tower 7
Mouth connection,
Foreshot's input port is set to the connection of impurity tower feed preheater 56 input port, impurity tower feed preheater 56 input
Mouth is set to connect with the input port of impurity tower 5, and the middle part input port of impurity tower 5 is set to by impurity tower reflux pump 55
Connect with the input port of impurity tower 5 with impurity tower return tank 54, impurity tower auxiliary condenser I 51, impurity tower auxiliary condenser
II 52 are set to connect with impurity tower return tank 54 with impurity tower auxiliary condenser III 53, the cold output port in tower end of impurity tower 5
Being set to be connected with miscellaneous wine tank 58 by miscellaneous wine pump 57, the top output port mouth of impurity tower 5 is set to and the input of dilution tower 6
Mouth connection, the heat exchange port that the fume tail gas output port of rectifying column II 4 is set to impurity tower 5 connects,
The output port of the degassing stages of wine with dregs tower I 2 is set to by full gear section reflux pump 96 and full gear section return tank 95 and wine with dregs tower I 2
Input port connection, degassing stages condenser 9, full gear section condenser I 91, full gear section condenser II 92, full gear section condenser III
93 are set to connect with full gear section return tank 95 with full gear section condenser IV 94,
Wine with dregs tower II 1, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4, impurity tower 5, dilution tower 6, eparating methanol tower 7 and foreshot's recovery tower 8
Exhaust port be set to connect with the input port of vacuum buffer tank 101, the output port of vacuum buffer tank 101 is set to lead to
Cross vacuum pump 102 and connect with vacuum water pot 104 with sealing water cooler 103,
The input port of Alcohols,fusel separator 202 is set to connect with Alcohols,fusel cooler 201, and alkali liquid tank 302 is set to pass through
Lye pump 301 connects with rectifying column II 4, and potassium permanganate tank 402 is set to be connected with rectifying column II 4 by permanganic acid potassium pump 401.
In the present embodiment, wine with dregs tower II 1, rectifying column II 4, impurity tower 5 and dilution tower 6 are set to gerotor type tower body, wine with dregs tower I
2 and eparating methanol tower 7 be set to negative-pressure type tower body, rectifying column I 3 and foreshot's recovery tower 8 and be set to positive-pressure type tower body.
In the present embodiment, wine with dregs tower II 1 is set to have the tower body of 25 laminates, wine with dregs tower I 2 is set to have ten laminates
Tower body, rectifying column I 3 be set to that there is the tower body of 88 laminates, rectifying column II 4 be set to have 90 laminates tower body,
Impurity tower 5 is set to have the tower body of 60 laminates, tower 6 is set to have the tower body of 50 laminates, eparating methanol tower 7 is arranged in dilution
Tower body and foreshot's recovery tower 8 for having 70 laminates is set to the tower body with 70 laminates.
By the setting of the number of plies to tower body, optimize the program that alcohol is standby, improve the quality of ethanol and produce effect
Rate.
Below in conjunction with embodiment, further describing the present invention, following example are intended to illustrate rather than this
The further restriction of invention.
A kind of alcohol Preparation Method based on double thick and double essence towers, its step:
One, from fermentation workshop section maturing fermentation wine with dregs through crude wine preheater 23, two grades of preheaters 2 of mash and mash three grades preheating
Entering the top degassing stages of wine with dregs tower I 2 after device 26 preheating, the mash after degassing enters feeding-distribution device, mash is divided into two parts, and one
Part enters wine with dregs tower II 1 after being pumped up the preheating of wine with dregs tower II 1 distiller grains heat exchanger, and another part flows into wine with dregs tower I 2, logical in wine with dregs tower I 2
Crossing distillation to be separated with grain liquid by the thick wine in mash, grain liquid is discharged at tower bottom, and crude alcohol steam enters enriching section, by distillation
At end condenser exclusive segment impurity, at the enriching section middle and lower part thick wine of extraction to thick wine tank, after the preheated device of crude alcohol, enter essence
Evaporating tower I 3 and dilution tower 6, the duty of wine with dregs tower I 2 is negative pressure, and the mode of heating of wine with dregs tower I 2 is the ethanol at rectifying column II 4 top
Steam passes through reboiler heat supply, and the working method of reboiler is hydrocone type, and heating carrier is rectifying column II 4 waste water,
Two, the part mash after wine with dregs tower I 2 takes off vapour enters the top of wine with dregs tower II 1 after being pumped up distiller grains preheating, through distillation by karusen
In alcoholic constituent separate with distiller grains, distiller grains are discharged outside tower, and alcoholic constituent rises and enters rectifying column II 4 with the form of gas phase,
Rectifying column II 4 carries out distillation and concentration, at auxiliary condenser to extract foreshot's form despumation, at the upper side line drawing of tower
Finished product ordinary alcohol, to be extracted into the faints concentration bottom the size control tower of product alcohol amount, at the bottom of tower, light wine is pumped up into wine
Head recovery tower 8, the alcohol steam at rectifying column II 4 top, by reboiler to wine with dregs tower I 2 heat supply, wine with dregs tower II 1 and rectifying column II 4
Thermal source is from the alcohol steam of rectifying column I 3, and the duty of wine with dregs tower II 1 and rectifying column II 4 is normal pressure, the work side of reboiler
Formula is hydrocone type, and heating carrier is the waste water of rectifying column I 3,
Three, the charging of foreshot's recovery tower 8 comes from the light wine of the light wine bottom rectifying column II 4 and Alcohols,fusel separator, through steaming
Evaporate the auxiliary cold extraction foreshot at tower, extract finished product ordinary alcohol in the middle and upper part of tower, extract Alcohols,fusel at the middle part of tower and enter miscellaneous
Alcohol oil eliminator, the light wine after separation enters back into foreshot's recovery tower 8 through pump, and the alcohol steam at foreshot's recovery tower 8 top is by dilute
Releasing tower 6 reboiler to dilution tower 6 heat supply as the thermal source of dilution tower 6, the heat supply of foreshot's recovery tower 8 uses primary steam, work
State is malleation,
Four, dilution tower 6 utilizes the impurity such as the acetaldehyde characteristic that rectification coefficient increases under ethanol low concentration, makes impurity at the top of tower
Concentrating and assemble, remove in the way of extracting foreshot and emptying, the charging of dilution tower 6 is the thick wine from wine with dregs tower I 2, by washing
Obtain, in the bottom of tower, the light wine that comparison is pure, after being pumped up the heating of rectifying column I 3 waste water preheater, enter rectifying column I 3, dilution
The thermal source of tower 6 be foreshot's recovery tower 8 top alcohol steam by dilution tower 6 reboiler give dilution tower 6 heat supply, duty is
Normal pressure,
Five, rectifying column I 3 duty is malleation, and rectifying column I 3 charging is from the light wine bottom dilution tower 6, through distillation at tower
Middle and lower part side take-off Alcohols,fusel, in auxiliary condenser despumation in the way of extracting foreshot and emptying, in top of tower side
Line takes out semi-finished product ethanol and enters eparating methanol tower 7, removes methanol further, and waste water is discharged in the bottom of tower, and preheating water scrubber is light
A part is as the thinned water of dilution tower 6 after drinking, and a part goes the carrier of wine with dregs tower reboiler to produce Secondary-steam heating wine with dregs tower,
Remainder is discharged as waste water,
Six, eparating methanol tower 7 utilizes the methanol characteristic that its rectification coefficient increases when alcohol concentration height, at the evaporator overhead condenser end of tower
The cold form to extract foreshot removes methanol, extracts top grade ethanol in the bottom of tower.The mode of heating of tower is to utilize dilution tower 6
Fume is heated by reboiler, and the duty of dilution tower 6 is negative pressure,
Seven, the foreshot of each tower is focused on by impurity tower 5, and head impurty concentrates concentration further, at tower end cold extraction impurity
The higher industrial alcohol of content, obtains the preferable ethanol of quality in tower reactor, is pumped up dilution tower 6 such as and purifies further, improves excellent
The yield of level ethanol, the heating of impurity tower 5 is that the fume tail gas utilizing rectifying column II 4 heats, and duty is normal pressure.
The technical performance index contrast table of the present embodiment:
The present invention has a lower feature:
1, owing to devising wine with dregs tower II 1, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4, dilution tower 6, eparating methanol tower 7 and foreshot's recovery
Tower 8, is carried out fume separated by wine with dregs tower II 1, wine with dregs tower I 2, II 4 pairs of maturing fermentation mash of rectifying column I 3 and rectifying column, by dilution
Tower 6, eparating methanol tower 7 and foreshot's recovery tower 8 carry out purification processes to fume, not in use by single wine with dregs tower and single rectifying column, therefore drop
Low energy consumption.
2, owing to devising impurity tower 5, improve the utilization rate of ethanol.
3, owing to devising wine with dregs tower II 1, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4, dilution tower 6, eparating methanol tower 7 and foreshot
Recovery tower 8, takes full advantage of thermal coupling technology and makes heat be used repeatedly, and reclaimed waste heat, and system capacity reaches
To reasonably utilizing and distribution, reduce steam and the consumption of cooling water to greatest extent, design that tower is special and high efficiency tower
The application of plate improves distillation rate, uses multiple spot to discharge impurity, stable and reliable product quality.
4, owing to devising wine with dregs tower II 1, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4, impurity tower 5, dilution tower 6, separating methanol
Five column distillations and double thick column distillation have been carried out the combination of science by tower 7 and foreshot's recovery tower 8, and set of device can produce excellent simultaneously
Level ethanol and two kinds of products of ordinary alcohol, heating system have employed a tower air inlet multitower job and reduces steam consumption.
5, owing to devising wine with dregs tower II 1, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4, impurity tower 5, dilution tower 6, separating methanol
Tower 7 and foreshot's recovery tower 8, be different from existing two tower atmospheric units, both can produce top grade, two kinds of products of general level simultaneously, also
Can be with full scale production ordinary alcohol, energy consumption is greatly lowered compared with before transformation.
6, owing to devising the technical characteristic of the present invention, in the effect of the set individually and each other of technical characteristic,
Being shown by test, the property indices of the present invention is at least 1.7 times of existing property indices, is had by assessment
There is good market value.
Also have other with double thick and double smart towers produce the wine with dregs tower II 1 of ethanol, wine with dregs tower I 2, rectifying column I 3, rectifying column II 4,
Other technical characteristic that dilution tower 6, eparating methanol tower 7 connect with foreshot's recovery tower 8 is all one of embodiments of the invention, and with
Each technical characteristic of upper described embodiment can combine arbitrarily, refers to for meeting Patent Law, patent regulation and examination
The requirement in south, is no longer all described the embodiment of all possible combination of each technical characteristic in above-described embodiment.
Above-described embodiment is that alcohol based on double thick and double essence towers provided by the present invention is for the one of apparatus and method
Plant way of realization, according to other deformation of scheme provided by the present invention, increase or reduce composition therein or step, or
The present invention is used for other the technical field close with the present invention, belongs to protection scope of the present invention.
Claims (6)
1. ethanol preparation facilitiess based on double thick and double essence towers, is characterized in that: include and the input of maturing fermentation mash
The wine with dregs tower I (2) of port connection, the port that is set to export with input port and the wine with dregs tower I (2) of maturing fermentation mash respectively connect
Wine with dregs tower II (1), the rectifying column II (4) being set to connect with the output port of wine with dregs tower II (1), be set to and rectifying column II (4)
Output port connection foreshot's recovery tower (8), be set to the port that exports respectively and foreshot's recovery tower (8) with wine with dregs tower I (2)
The dilution tower (6) of output port connection, it is set to the output port company of the port that exports respectively and dilution tower (6) with wine with dregs tower I (2)
Logical rectifying column I (3), it is set to the eparating methanol tower (7) that connects with the output port of rectifying column I (3).
Ethanol preparation facilities based on double thick and double essence towers the most according to claim 1, is characterized in that: according to double thick and double
Essence tower produces the mode of ethanol wine with dregs tower II (1), wine with dregs tower I (2), rectifying column I (3), rectifying column II (4), dilution tower (6), piptonychia
Alcohol tower (7) and foreshot's recovery tower (8) are interconnected.
Ethanol preparation facilities based on double thick and double essence towers the most according to claim 1, is characterized in that: also include
Rectifying column I auxiliary condenser I (31), rectifying column I auxiliary condenser II (32), rectifying column I auxiliary condenser III (33), light
Wine preheater (34), rectifying column I auxiliary reflux tank (35), rectifying column I auxiliary reflux pump (36), rectifying column I reflux pump (37), essence
Evaporate tower I return tank (38), rectifying column I feed pump (39),
Wine with dregs tower II distiller grains pump (11), essence tower waste water pump (12), wine with dregs tower II reboiler I (13), flow separator II (14), wine with dregs tower II
Reboiler II (15), wine with dregs tower II feed pump (16), wine with dregs tower II feed preheater (17),
Rectifying column II auxiliary condenser I (41), rectifying column II auxiliary condenser II (42), rectifying column II auxiliary condenser III
(43), rectifying column II return tank (44), rectifying column II reflux pump (45), rectifying column II finished product cooler (46),
Mash wine vapour preheater (21), thick wine pump (22), crude wine preheater (23), wine with dregs tower I distiller grains pump (24), mash two grades preheating
Device (25), three grades of preheaters (26) of mash, wine with dregs tower I reboiler I (27), flow separator I (28), wine with dregs tower I reboiler II (29),
Impurity tower (5), impurity tower auxiliary condenser I (51), impurity tower auxiliary condenser II (52), impurity tower auxiliary condenser III
(53), impurity tower return tank (54), impurity tower reflux pump (55), impurity tower feed preheater (56), miscellaneous wine pump (57), miscellaneous wine tank
(58),
Dilution tower auxiliary condensation (61), dilution tower return tank (62), dilution tower reflux pump (63), dilution tower reboiler I (64), dilute
Release tower reboiler II (65),
Eparating methanol tower auxiliary condenser I (71), eparating methanol tower auxiliary condenser II (72), eparating methanol tower auxiliary condenser III
(73), eparating methanol tower auxiliary condenser IV (74), eparating methanol tower return tank (75), eparating methanol tower reflux pump (76), high-quality ethanol
Pump (77), high-quality finished product cooler (78), eparating methanol tower reboiler (79),
Foreshot's recovery tower auxiliary condenser I (81), foreshot's recovery tower auxiliary condenser II (82), foreshot's recovery tower auxiliary condenser
III (83), foreshot's recovery tower reboiler (84), foreshot's recovery tower discharging pump (85), foreshot's recovery tower reflux pump (86), foreshot return
Receive tower return tank (87), foreshot's recovery tower feed pump (88), foreshot's recovery tower head tank (89), foreshot's recovery tower feed preheater
(810),
Degassing stages condenser (9),
Full gear section condenser I (91), full gear section condenser II (92), full gear section condenser III (93), full gear section condenser IV
(94), full gear section return tank (95), full gear section reflux pump (96),
Vacuum buffer tank (101), vacuum pump (102), seal water cooler (103), vacuum water pot (104),
Alcohols,fusel cooler (201), Alcohols,fusel separator (202),
Lye pump (301), alkali liquid tank (302),
Permanganic acid potassium pump (401), potassium permanganate tank (402),
The input port of maturing fermentation mash is set to pass sequentially through mash wine vapour preheater (21), crude wine preheater (23), wine with dregs
Three grades of preheaters (26) of two grades of preheaters (25) of liquid and mash connect with the input port of the top degassing stages of wine with dregs tower I (2), wine with dregs tower
The output port of the top degassing stages of I (2) is set to connect with the input port of flow separator I (28), flow separator I
(28) input port is respectively set to connect with the input port of wine with dregs tower I (2) and by wine with dregs tower II feed pump (16) and wine with dregs tower
II feed preheater (17) input port connection, the bottom port of wine with dregs tower I (2) be set to by wine with dregs tower I distiller grains pump (24) with
The input port connection of wine with dregs tower I (2), the thick wine of the enriching section of wine with dregs tower I (2) is gone out port and is respectively set to be fed by rectifying column I
Pump (39) connects with the input port of light wine preheater (34) and by thick wine pump (22) and the heat exchange of crude wine preheater (23)
Port connects with the input port of dilution tower (6), and the alcohol steam output port at the top of rectifying column II (4) is set to and wine with dregs tower
I reboiler I (27) connects with wine with dregs tower I reboiler II (29),
The output port of wine with dregs tower II feed preheater (17) is set to connect with the input port on the top of wine with dregs tower II (1), wine with dregs tower
The bottom output port of II (1) is set to connect with wine with dregs tower II feed preheater (17) with essence tower waste water pump (12), wine with dregs tower II (1)
Output port be set to connect with the input port of rectifying column II (4), the output port on the top of wine with dregs tower II (1) is set to lead to
Cross the heat exchange port of flow separator II (14), wine with dregs tower II reboiler II (15) and wine with dregs tower II feed pump (16) and wine with dregs tower I (2)
Connection, the heat exchange port of wine with dregs tower II (1) is set to connect with the alcohol steam output port of rectifying column II (4),
The output port of the distillation and concentration section of rectifying column II (4) is respectively set to and rectifying column II auxiliary condenser I (41), rectification
Tower II auxiliary condenser II (42) connects with rectifying column II auxiliary condenser III (43), rectifying column II auxiliary condenser I (41), essence
The output port evaporating tower II auxiliary condenser II (42) and rectifying column II auxiliary condenser III (43) is set to and foreshot's recovery tower
Head tank (89) connects, and the upper side line output terminal mouth of rectifying column II (4) is set to rectifying column II finished product cooler (46) even
Logical, the bottom output port of rectifying column II (4) is set to by rectifying column II return tank (44) and rectifying column II reflux pump (45)
Connecting with the input port of foreshot's recovery tower (8), the heat exchange port of rectifying column II (4) is set to and the wine of rectifying column II (4)
Essence steam output end mouth connection,
The output port of foreshot's recovery tower head tank (89) is set to by foreshot's recovery tower feed pump (88) and foreshot's recovery tower
The input port connection of feed preheater (810), the auxiliary cold port of foreshot's recovery tower (8) is set to foreshot's output port, foreshot
The middle and upper part output port of recovery tower (8) is set to by foreshot's recovery tower discharging pump (85) and foreshot's recovery tower auxiliary condenser
I (81), foreshot's recovery tower auxiliary condenser II (82), foreshot's recovery tower auxiliary condenser III (83) connection, foreshot's recovery tower is auxiliary
Help condenser I (81), foreshot's recovery tower auxiliary condenser II (82), the output port of foreshot's recovery tower auxiliary condenser III (83)
Being set to finished product ordinary alcohol output port, the middle part output port of foreshot's recovery tower (8) is set to and Alcohols,fusel separator
(202) input port connection, the bottom output port of foreshot's recovery tower (8) is set to by foreshot's recovery tower reflux pump (86)
Connect with the input port of foreshot's recovery tower return tank (87) with foreshot's recovery tower (8), the ethanol at the top of foreshot's recovery tower (8)
Steam output end mouth is set to connect with dilution tower reboiler II (65), and dilution tower reboiler II (65) is set to and dilution tower
(6) heat exchange port connection, the heat exchange port of foreshot's recovery tower (8) connects with external thermal source,
The thick wine input port that the input port of dilution tower (6) is set to wine with dregs tower I (2) connects, the bottom output of dilution tower (6)
Port is set to connect with the input port of light wine preheater (34), and the output port of light wine preheater (34) is set to by essence
Evaporating tower I feed pump (39) to connect with the input port of rectifying column I (3), the top output port of dilution tower (6) is set to by dilute
Release tower return tank (62) to connect with the input port of dilution tower reflux pump (63) with dilution tower (6), dilution tower auxiliary condensation (61)
Being set to connect with dilution tower return tank (62), the alcohol steam output port at the top of foreshot's recovery tower (8) is set to dilute
Releasing tower reboiler II (65) connection, dilution tower reboiler II (65) is set to connect with the heat exchange port of dilution tower (6),
The output port of light wine preheater (34) is set to the input port by rectifying column I feed pump (39) Yu rectifying column I (3)
Connection, the middle and lower part side line output port of rectifying column I (3) is set to connect with Alcohols,fusel separator (202), rectifying column I (3)
Middle part output port is set to be refluxed by rectifying column I auxiliary reflux tank (35), rectifying column I auxiliary reflux pump (36), rectifying column I
Pump (37) connects with the input port of rectifying column I return tank (38) with rectifying column I (3), rectifying column I auxiliary condenser I (31), essence
Evaporate tower I auxiliary condenser II (32) and rectifying column I auxiliary condenser III (33) is respectively set to and rectifying column I auxiliary reflux tank
(35) connecting with rectifying column I return tank (38), the top side line output terminal mouth of rectifying column I (3) is set to and eparating methanol tower (7)
Input port connects, the bottom port of rectifying column I (3) be set to successively with the heat exchange port of input port of dilution tower (6)
Connecting with the thinned water port of dilution tower (6), the bottom port of rectifying column I (3) is set to and wine with dregs tower I reboiler I (27), wine with dregs
Tower I reboiler II (29), wine with dregs tower II reboiler I (13) connect with wine with dregs tower II reboiler II (15),
The middle part output port of eparating methanol tower (7) is set to by eparating methanol tower return tank (75) and eparating methanol tower reflux pump (76)
Connect with the input port of eparating methanol tower (7), eparating methanol tower auxiliary condenser I (71), eparating methanol tower auxiliary condenser II (72),
Eparating methanol tower auxiliary condenser III (73) and eparating methanol tower auxiliary condenser IV (74) are respectively set to and eparating methanol tower return tank
(75) connection, the bottom output port of eparating methanol tower (7) is set to by quality liquor sperm pump (77) and high-quality finished product cooler
(78) connection, the fume output port of dilution tower (6) is set to connect with eparating methanol tower reboiler (79), eparating methanol tower reboiler
(79) it is set to connect with the heat exchange port of eparating methanol tower (7),
Foreshot's input port is set to the connection of impurity tower feed preheater (56) input port, and impurity tower feed preheater (56) is defeated
Inbound port is set to connect with the input port of impurity tower (5), and the middle part input port of impurity tower (5) is set to by impurity tower
Reflux pump (55) connects with the input port of impurity tower return tank (54) with impurity tower (5), impurity tower auxiliary condenser I (51),
Impurity tower auxiliary condenser II (52) is set to impurity tower auxiliary condenser III (53) connect with impurity tower return tank (54), miscellaneous
The cold output port in tower end of matter tower (5) is set to be connected with miscellaneous wine tank (58) by miscellaneous wine pump (57), and the top of impurity tower (5) is defeated
Going out port to be set to connect with the input port of dilution tower (6), the fume tail gas output port of rectifying column II (4) is set to miscellaneous
The heat exchange port connection of matter tower (5),
The output port of the degassing stages of wine with dregs tower I (2) be set to by full gear section reflux pump (96) and full gear section return tank (95) with
Wine with dregs tower I (2) input port connection, degassing stages condenser (9), full gear section condenser I (91), full gear section condenser II (92),
Full gear section condenser III (93) is set to full gear section condenser IV (94) connect with full gear section return tank (95),
Wine with dregs tower II (1), wine with dregs tower I (2), rectifying column I (3), rectifying column II (4), impurity tower (5), dilution tower (6), eparating methanol tower (7)
It is set to the exhaust port of foreshot's recovery tower (8) connect with the input port of vacuum buffer tank (101), vacuum buffer tank
(101) output port is set to be connected with vacuum water pot (104) with sealing water cooler (103) by vacuum pump (102),
The input port of Alcohols,fusel separator (202) is set to connect with Alcohols,fusel cooler (201), and alkali liquid tank (302) is arranged
For being connected with rectifying column II (4) by lye pump (301), potassium permanganate tank (402) be set to by permanganic acid potassium pump (401) with
Rectifying column II (4) connects.
Ethanol preparation facilities based on double thick and double essence towers the most according to claim 3, is characterized in that: wine with dregs tower II (1), essence
Evaporate tower II (4), impurity tower (5) and dilution tower (6) to be set to gerotor type tower body, wine with dregs tower I (2) and eparating methanol tower (7) and be set to bear
Pressure type tower body, rectifying column I (3) and foreshot's recovery tower (8) are set to positive-pressure type tower body.
Ethanol preparation facilities based on double thick and double essence towers the most according to claim 3, is characterized in that: wine with dregs tower II (1) sets
Be set to have the tower body of 25 laminates, wine with dregs tower I (2) is set to have the tower body of ten laminates, rectifying column I (3) is set to have
The tower body of 88 laminates, rectifying column II (4) are set to have the tower body of 90 laminates, impurity tower (5) is set to have 60
The tower body of laminate, dilution tower (6) is set to have the tower body of 50 laminates, eparating methanol tower (7) is set to have 70 laminates
Tower body and foreshot's recovery tower (8) are set to the tower body with 70 laminates.
6. alcohol Preparation Methods based on double thick and double essence towers, its step:
One, the maturing fermentation wine with dregs from fermentation workshop section is pre-through crude wine preheater (23), two grades of preheaters 2 of mash and mash three grades
Entering the top degassing stages of wine with dregs tower I (2) after hot device (26) preheating, the mash after degassing enters feeding-distribution device, mash is divided into two
Part, a part enters wine with dregs tower II (1) after being pumped up the preheating of wine with dregs tower II (1) distiller grains heat exchanger, and another part flows into wine with dregs tower I (2),
Being separated with grain liquid by thick wine in mash by distillation in wine with dregs tower I (2), grain liquid is discharged at tower bottom, and crude alcohol steam enters
Enriching section, by distillation at end condenser exclusive segment impurity, extracts thick wine to thick wine tank, crude alcohol warp in enriching section middle and lower part
Entering rectifying column I (3) and dilution tower (6) after preheater, the duty of wine with dregs tower I (2) is negative pressure, the mode of heating of wine with dregs tower I (2)
Be the alcohol steam at rectifying column II (4) top by reboiler heat supply, the working method of reboiler is hydrocone type, and heating carrier is
Rectifying column II (4) waste water,
Two, the part mash after the de-vapour of wine with dregs tower I (2) enters the top of wine with dregs tower II (1) after being pumped up distiller grains preheating, will send out through distillation
Alcoholic constituent in ferment wine with dregs separates with distiller grains, and distiller grains are discharged outside tower, and alcoholic constituent rises the form entrance rectifying column II with gas phase
(4), in rectifying column II (4), distillation and concentration is carried out, at auxiliary condenser to extract foreshot's form despumation, on the top of tower
Side line extracts finished product ordinary alcohol, to be extracted into the faints concentration bottom the size control tower of product alcohol amount, light wine warp at the bottom of tower
Being pumped into foreshot's recovery tower (8), the alcohol steam at rectifying column II (4) top, by reboiler to wine with dregs tower I (2) heat supply, wine with dregs tower II
And the thermal source of rectifying column II (4) is from the alcohol steam of rectifying column I (3), wine with dregs tower II (1) and the work shape of rectifying column II (4) (1)
State is normal pressure, and the working method of reboiler is hydrocone type, and heating carrier is the waste water of rectifying column I (3),
Three, the charging of foreshot's recovery tower (8) comes from the light wine of rectifying column II (4) bottom and the light wine of Alcohols,fusel separator,
Through distillation the auxiliary cold extraction foreshot of tower, extract finished product ordinary alcohol in the middle and upper part of tower, extract Alcohols,fusel at the middle part of tower and enter
Entering Alcohols,fusel separator, the light wine after separation enters back into foreshot's recovery tower (8) through pump, and the ethanol at foreshot's recovery tower (8) top steams
Vapour by dilution tower (6) reboiler give dilution tower (6) heat supply as the thermal source of dilution tower (6), foreshot's recovery tower (8) for thermal recovery
With primary steam, duty is malleation,
Four, dilution tower (6) utilizes the impurity such as the acetaldehyde characteristic that rectification coefficient increases under ethanol low concentration, makes impurity on the top of tower
Portion concentrates assembles, and removes in the way of extracting foreshot and emptying, and the charging of dilution tower (6) is the thick wine from wine with dregs tower I (2), logical
Cross washing and obtain, in the bottom of tower, the light wine that comparison is pure, after being pumped up the heating of rectifying column I (3) waste water preheater, enter rectifying column
I (3), the thermal source of dilution tower (6) is that the alcohol steam at foreshot's recovery tower (8) top is by diluting tower (6) reboiler to dilution tower
(6) heat supply, duty is normal pressure,
Five, rectifying column I (3) duty is malleation, and rectifying column I (3) charging is the light wine from dilution tower (6) bottom, through steaming
Evaporate the middle and lower part side take-off Alcohols,fusel at tower, in auxiliary condenser despumation in the way of extracting foreshot and emptying, at tower
Top side line takes out semi-finished product ethanol and enters eparating methanol tower (7), removes methanol further, and waste water is discharged in the bottom of tower, preheating
Water scrubber light wine rear portion is as the thinned water of dilution tower (6), and a part goes the carrier of wine with dregs tower reboiler to produce secondary steaming
Vapour heats wine with dregs tower, and remainder is discharged as waste water,
Six, eparating methanol tower (7) utilizes the methanol characteristic that its rectification coefficient increases when alcohol concentration height, at the evaporator overhead condenser of tower
The cold form to extract foreshot in end removes methanol, extracts top grade ethanol in the bottom of tower,
The mode of heating of tower is that the fume utilizing dilution tower (6) is heated by reboiler, and the duty of dilution tower (6) is negative
Pressure,
Seven, the foreshot of each tower is focused on by impurity tower (5), and head impurty concentrates concentration further, miscellaneous in the cold extraction of tower end
The higher industrial alcohol of matter content, obtains the preferable ethanol of quality in tower reactor, is pumped up dilution tower (6) such as and purifies further, carries
The yield of high top grade ethanol, the heating of impurity tower (5) is that the fume tail gas utilizing rectifying column II (4) heats, duty
For normal pressure.
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| CN107501048A (en) * | 2017-09-07 | 2017-12-22 | 广东中科天元新能源科技有限公司 | Medical alcohol and high-purity Alcohol Production device and its production technology |
| CN108409534A (en) * | 2018-04-27 | 2018-08-17 | 肥城金塔机械有限公司 | The dehydration device and method of alcohol fuel are produced based on continuity |
| CN108421274A (en) * | 2017-10-30 | 2018-08-21 | 肥城金塔酒精化工设备有限公司 | The double thick double smart eight column distillation device and method of low-pressure process for producing top grade alcohol |
| CN108558602A (en) * | 2018-07-03 | 2018-09-21 | 肥城金塔机械科技有限公司 | Double thick double smart four tower quadruple effect energy-saving distillings production alcohol fuel systems and its application method |
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| CN108558602A (en) * | 2018-07-03 | 2018-09-21 | 肥城金塔机械科技有限公司 | Double thick double smart four tower quadruple effect energy-saving distillings production alcohol fuel systems and its application method |
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| CN106316791B (en) | 2019-11-08 |
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