CN106316793A - Alcohol preparing device and method based on the double rectification column and six-column and four-effect distillation - Google Patents
Alcohol preparing device and method based on the double rectification column and six-column and four-effect distillation Download PDFInfo
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- CN106316793A CN106316793A CN201610709263.9A CN201610709263A CN106316793A CN 106316793 A CN106316793 A CN 106316793A CN 201610709263 A CN201610709263 A CN 201610709263A CN 106316793 A CN106316793 A CN 106316793A
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- pressure essence
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The alcohol preparing device and method based on the double rectification column and six-column and four-effect distillation comprises prefractionator (1) containing crude alcohol after degassing and methanol elimination, dilution column (2) set to be connected with prefractionator (1) and acquire diluted alcohol, low-pressure rectification column (3) set to be connected with dilution column (2) and generate pure and diluted alcohol, high-pressure rectification column (4) set to be connected with the diluted alcohol output port of low-pressure rectification column (3) and generate pure alcohol, methanol separation column (5) set to be connected with the pure alcohol port of low-pressure rectification column (3) and pure alcohol port of high-pressure rectification column (4) and generate end product alcohol. The heat source heating end of high-pressure rectification column (4) is set to be connected with external heat source body. Besides, the heat source heating ends of prefractionator (1), dilution column (2), low-pressure rectification column (3) and methanol separation column (5) and pure alcohol heat exchanger of high-pressure rectification column (4) are set to be interconnected. Five-column and three-effect distillation device or double crude distillation column seven-column energy saving distillation device are no longer used, thus reducing the energy consumption.
Description
One, technical field
The present invention relates to a kind of alcohol based on double essence tower six tower quadruple effects distillations for apparatus and method, especially a kind of adaptation is used
In fruit tree based on double essence tower six tower quadruple effects distillation alcohols for apparatus 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 essence tower six tower quadruple effect distillations,
The object of the present invention is a kind of alcohol Preparation Method based on double essence tower six tower quadruple effect distillations.
In order to overcome above-mentioned technical disadvantages, it is an object of the invention to provide a kind of wine based on double essence tower six tower quadruple effect distillations
Essence preparation apparatus and method, therefore reduce energy consumption.
For reaching above-mentioned purpose, the present invention adopts the technical scheme that: a kind of wine based on double essence tower six tower quadruple effect distillations
Essence preparation facilities, includes and is obtained the wine with dregs tower of crude alcohol by degassing with row's aldehyde, be set to connect with wine with dregs tower and obtain light wine
The dilution tower of essence, it is set to connect with dilution tower and produce the low pressure essence tower of absolute alcohol and faints, is set to and low pressure is smart
The port connection of the output faints of tower and produce the high pressure essence tower of absolute alcohol, be set to the end of absolute alcohol with low pressure essence tower
Mouth connects with the port of the absolute alcohol of high pressure essence tower and produces the eparating methanol tower of finished product ethanol, the thermal source fire end of high pressure essence tower
Portion is set to connect with external heat source body and the thermal source heating end of wine with dregs tower, thermal source heating end, the low pressure essence tower of dilution tower
Thermal source heating end, eparating methanol tower thermal source heating end, high pressure essence tower absolute alcohol heat exchanger between be set to phase
Intercommunicated.
Owing to devising wine with dregs tower, dilution tower, low pressure essence tower, high pressure essence tower and eparating methanol tower, fermenting-ripening mash passes through wine with dregs
The process of tower, obtains isolated alcohol blend body, by dilution tower, low pressure essence tower and high pressure essence tower to alcohol blend body
Carry out purification processes, get rid of methanol by eparating methanol tower, not in use by five tower triple effect distillation process units or double thick tower seven tower joint
Process unit can be distilled, therefore reduce energy consumption.
The present invention devises, according to double essence tower six tower quadruple effects distillation the mode producing ethanol wine with dregs tower, dilution tower, low pressure
Essence tower, high pressure essence tower and eparating methanol tower are coupled to each other.
The present invention devises, also include recovery tower,
Mash one-level preheater, two grades of preheaters of mash, row's aldehyde section condenser I, row's aldehyde section condenser II, row's aldehyde section condenser
III, row aldehyde section return tank, row aldehyde section reflux pump, distiller grains pump, wine with dregs tower condenser,
Dilution tower auxiliary condenser, dilution tower return tank, dilution tower reflux pump, two grades of preheaters of thick wine, thick wine pump, thick wine one-level
Preheater,
Low pressure essence tower feed preheater, low pressure essence tower reflux pump, low pressure essence tower return tank, low pressure essence tower feed pump,
High pressure essence tower feed preheater, high pressure essence tower reflux pump, high pressure essence tower return tank, high pressure essence tower feed pump,
Eparating methanol tower return tank, eparating methanol tower reflux pump, eparating methanol tower auxiliary condenser,
Recovery tower auxiliary condenser, recovery tower feed preheater, recovery tower feed pump, recovery tower return tank, recovery tower reflux pump,
Miscellaneous wine tank, reboiler, flash tank, hot-water cylinder,
Wine with dregs tower is arranged according to the row's of being disposed with aldehyde section from top to bottom and degassing stages and fermenting-ripening mash input port
Connect with the top port of the degassing stages of wine with dregs tower for passing sequentially through two grades of preheaters of mash one-level preheater and mash, taking off of wine with dregs tower
The top port of gas section is set to connect with the thermal source input port of mash one-level preheater, and the top port of row's aldehyde section is set to
With row aldehyde section condenser I input port, row aldehyde section condenser II input port, row aldehyde section condenser III input port divide
Not Lian Tong and mash one-level preheater thermal source output port and row aldehyde section condenser I output port, row aldehyde section condenser
Output port, the output port of row's aldehyde section condenser III of II are respectively set to connect with the input port arranging aldehyde section return tank,
The output port of row's aldehyde section return tank is set to be connected by the top port of row's aldehyde section reflux pump with row's aldehyde section, the bottom of wine with dregs tower
Port be set to by distiller grains pump with the thermal source input port of mash one-level preheater and with the heat of mash one-level preheater
Source output terminal mouth is set to connect with anaerobic treatment port, and mash one-level preheater is set to by wine with dregs tower condenser self-loopa also
And the top port of dilution tower is set to the thermal source switching port of the reboiler with wine with dregs tower and connects, the thermal source of the reboiler of wine with dregs tower adds
The reboiler of bottom terminal ends and two wine with dregs towers that hot junction portion is arranged on wine with dregs tower is set to carry out self-loopa, vacuum by circulating pump
Pump is set to connect with the top port of row's aldehyde section and arrange the bottom port of aldehyde section and is set to by thick wine pump and thick wine one-level
The input port connection of preheater,
The output port of thick wine one-level preheater is set to connect with the input port of thick two grades of preheaters of wine and thick wine two grades
The output port of preheater is set to connect with the pars intermedia port of dilution tower, and the thermal source switching port of the reboiler of wine with dregs tower is arranged
It is set to by dilution tower backflow for connect with the input port of dilution tower return tank and diluting the output port of tower return tank
Pump connects with the input port of miscellaneous wine tank, and dilution tower return tank is set to by dilution tower reflux pump and dilution tower auxiliary condenser
Carrying out self-loopa, the bottom port of dilution tower is set to the input by low pressure essence tower feed pump Yu low pressure essence tower feed preheater
Port connects,
The output port of low pressure essence tower feed preheater is set to connect with the bottom port of low pressure essence tower and low pressure essence tower
Top port is respectively set to connect with the thermal source switching port of the reboiler diluting tower, the reboiler of eparating methanol tower, dilutes tower
The thermal source heating end of reboiler be arranged on the bottom terminal ends of de-dilution tower and dilute the reboiler of tower and be set to by following
Ring pump carries out self-loopa,
The thermal source heating end of the reboiler of eparating methanol tower is arranged on the bottom terminal ends of eparating methanol tower and boiling again of eparating methanol tower
Device is set to carry out self-loopa by circulating pump, and the thermal source switching port of the reboiler of eparating methanol tower is set to return with low pressure essence tower
The input port connection of stream tank, the output port of low pressure essence tower return tank is set to by low pressure essence tower reflux pump and low pressure essence tower
The connection of top port, the bottom port of low pressure essence tower is set to by high pressure essence tower feed pump and high pressure essence tower feed preheater
Input port connection, the pars intermedia port that the top port of low pressure essence tower is set to eparating methanol tower connects,
The output port of high pressure essence tower feed preheater is set to connect with the bottom port of high pressure essence tower and high pressure essence tower
Top port is set to connect with the thermal source switching port of the reboiler of low pressure essence tower, the thermal source heating of the reboiler of low pressure essence tower
The reboiler of bottom terminal ends and low pressure essence tower that end is arranged on low pressure essence tower is set to carry out self-loopa by circulating pump, low
The thermal source switching port of the reboiler of pressure essence tower is set to connect with the input port of high pressure essence tower return tank, and high pressure essence tower refluxes
The output port of tank is set to be connected with the pars intermedia port of eparating methanol tower by high pressure essence tower reflux pump, the bottom of high pressure essence tower
Port is set to connect with the input port of miscellaneous wine tank and the pars intermedia port of high pressure essence tower is set to and the centre of dilution tower
Portion's port connection, the pars intermedia port that the top port of high pressure essence tower is set to eparating methanol tower connects,
The top port of eparating methanol tower is set to the input port with finished pot and connects and the top port setting of eparating methanol tower
Connecting for the thermal source switching port with the reboiler of wine with dregs tower, the thermal source heating end of the reboiler of wine with dregs tower is arranged on the bottom of wine with dregs tower
The reboiler of end and two wine with dregs towers is set to carry out self-loopa by circulating pump, the thermal source switching port of the reboiler of wine with dregs tower
It is set to connect with the input port of eparating methanol tower return tank and the output port of eparating methanol tower return tank is set to by de-
Methanol column reflux pump connects with the top port of eparating methanol tower, and eparating methanol tower return tank is set to by eparating methanol tower auxiliary condensation
Device carries out the output port of self-loopa and eparating methanol tower auxiliary condenser and is set to connect with the input port of foreshot's tank,
The output port of miscellaneous wine tank is set to be connected also by the input port of recovery tower feed pump with recovery tower feed preheater
And the bottom port that the output port of recovery tower feed preheater is set to recovery tower connects, the top port of recovery tower is arranged
For connecting with the thermal source switching port of the reboiler of dilution tower, the thermal source heating end of the reboiler of dilution tower is arranged on dilution tower
Bottom terminal ends, the thermal source switching port of reboiler of dilution tower be set to connect with the input port of recovery tower return tank and
The output port of recovery tower return tank is set to be connected with the top port of recovery tower by recovery tower reflux pump, and recovery tower refluxes
Tank is set to carry out self-loopa by recovery tower auxiliary condenser, and the bottom port of recovery tower is set to by heat exchanger and wine with dregs
Tower vapour liquid separator connects, and the output port receiving tower auxiliary condenser is set to connect with aldehyde wine tank input port, reclaims
The top port of tower is set to connect with the bottom port of dilution tower, and the pars intermedia port of recovery tower is set to separate with Alcohols,fusel
Device input port connects,
The thermal source switching port of low pressure essence tower feed preheater is set to connect with hot-water cylinder and hot-water cylinder is respectively set to lead to
Overheated water pump and the thermal source heating end of thick two grades of preheaters of wine, the thermal source heating end of thick wine one-level preheater and recovery tower
Thermal source heating end connection, the thermal source switching port of recovery tower feed preheater is set to connect with flash tank and flash tank
Output port is set to connect with waste water pump, and the thermal source heating end of recovery tower is set to connect with external heat source body.
The present invention devises, and wine with dregs tower is set to negative pressure tower body, and low pressure essence tower, high pressure essence tower, eparating methanol tower and recovery tower set
It is set to malleation tower body.
The present invention devises, and the bottom port of high pressure essence tower is arranged on the 16th laminate portion, with the input port of miscellaneous wine tank
The bottom port of the high pressure essence tower of connection is arranged on the top port of the 20th laminate portion and high pressure essence tower and is arranged on the 40th
Laminate portion.
The present invention devises, wine with dregs tower, recovery tower, dilution tower, eparating methanol tower, low pressure essence tower and high pressure essence tower be set to according to
Arrangement mode distribution the most from left to right.
The present invention devises, a kind of alcohol Preparation Methods based on double essence tower six tower quadruple effect distillations, the steps include:
One, fermenting-ripening wine with dregs is preheated to 50 DEG C through mash one-level preheater, while the degassing stages top wine vapour condensation of wine with dregs tower
Wine with dregs once preheats, two grades of preheaters of mash are preheated to 65 DEG C to give maturation, and ripe wine with dregs secondary preheating given by distiller grains at the bottom of wine with dregs tower tower, at wine with dregs tower
Degassing stages its top feed, enter the carbon dioxide in the after ripening wine with dregs of wine with dregs tower and part low boiling impurity under the effect of negative pressure with
Karusen separates, and enters mash one-level preheater and aldehyde section condenser I, row's aldehyde section condenser II and row aldehyde Duan Leng containing miscellaneous thick wine vapour
Condenser III condenses, and condensed fluid enters row's aldehyde section return tank, by certainly after sloughing bottom the karusen entrance degassing stages of gas
Flow tube road flows into wine with dregs tower,
While degassing wine with dregs is descending in wine with dregs tower, the steam that rises at the bottom of by tower heats, and wine vapour is up and useless mash separates, and useless wine with dregs exists
It is discharged at the bottom of tower, after preheating karusen, sends to anaerobism workshop section；Thick tower wine vapour ascender enters bottom degassing stages, remaining row of entrance
Bottom aldehyde section,
The wine vapour of row's aldehyde section tower top enters row's aldehyde section condenser I, row's aldehyde section condenser II and row's aldehyde section condenser III and condenses, condensation
Liquid fully enters row's aldehyde section return tank, sends into row aldehyde section top by row's aldehyde section reflux pump, uncooled containing miscellaneous QI body by true
Empty pump is discharged, and the crude alcohol bottom row's aldehyde section is sent after thick wine one-level preheater and two grades of preheaters of thick wine preheat by thick wine pump
Enter to dilute tower,
Dilution tower top vapour is by there being the reboiler of wine with dregs tower to heat wine with dregs tower, and the top vapour of eparating methanol tower heats wine with dregs by the reboiler of wine with dregs tower
Tower；
Two, enter after thick wine one-level preheater and the two grades of preheater preheatings of thick wine from the crude alcohol bottom row's aldehyde section of wine with dregs tower
The middle and upper part of dilution tower, the wastewater of rectification entered with dilution top of tower and fresh water (FW) sufficiently conduct heat and exchange and mass transfer friendship
Change, make the alcohol concentration of this tower bottom control at 12-15%(v/v), under relatively low alcohol concentration, normal propyl alcohol, Alcohols,fusel, aldehyde
Class and esters have bigger volatility coefficient, and the tower top to dilution tower moves and assembles, tower top wine vapour through the reboiler of wine with dregs tower
Refluxing in condensation rear section, miscellaneous wine tank is sent in part extraction, and the pure faints after cleaning is extracted out from the bottom of the tower of dilution tower,
A heat source part for dilution tower utilize the tower top wine vapour of recovery tower by dilution tower reboiler heat, a part
Utilize low pressure essence tower tower top part wine vapour by dilution tower reboiler indirectly heat, remaining is to utilize hot-water cylinder flash distillation
Secondary-steam heating,
Three, the bottom of low pressure essence tower, while gradually concentrating, methanol is entered after preheated from the light wine at the bottom of the tower of dilution tower
The low boiling impurities such as class rise to the tower top of low pressure essence tower with alcohol steam, and the pure wine degree of the tower top of low pressure essence tower is 95.5%(v/
V) above extraction as semi-finished product enters eparating methanol tower, and the tower top wine vapour of low pressure essence tower is through the reboiler of eparating methanol tower and dilution tower
Reboiler condensation after infinite reflux, enter high pressure essence tower after the tower reactor light wine of low pressure essence tower is preheated,
Four, the bottom of high pressure essence tower is entered after preheated at the 16th plate from the light wine at the bottom of the tower of low pressure essence tower, the denseest
While contracting, the low boiling impurity such as methanol class rises to tower top with alcohol steam, and middle rank impurity i.e. fusel iol is then at feedboard
Above 3-5 laminate is detained, and in this as entering miscellaneous wine tank after miscellaneous wine extraction, is pumped into recovery tower by miscellaneous wine 7, at 40 laminates
Having some special oils to assemble, send to dilution tower after being plucked out of, the pure wine degree of the tower top of high pressure essence tower is 95.5%(v/v) more than make
Draw for semi-finished product and enter eparating methanol tower, the infinite reflux after the reboiler of low pressure essence tower condenses of the tower top wine vapour of high pressure essence tower, high
The tower reactor spent hot water of pressure essence tower enters hot-water cylinder flash distillation after preheating light wine, and flash steam leads to as the part of heat energy of dilution tower, hot water
Overheated water pump major part enters the top dilution crude alcohol of dilution tower, and remaining fully enters wine with dregs tower vapour liquid separator, high-pressure rectification
The thermal source of tower is external thermal source,
Five, eparating methanol tower is pressure-fired distillation, the alcohol in high concentration from low pressure essence tower and high pressure essence tower preheat after crude alcohol
The middle and upper part of eparating methanol tower enters, and utilizes the tower top part wine vapour of low pressure essence tower indirectly to heat and carries out second distillation, and high-purity is excellent
Level ethanol is extracted out from the territory, tower base area of eparating methanol tower and is sent into finished pot after cooling, and the tower top alcohol steam of eparating methanol tower is through wine with dregs tower
Reboiler condensation after reflux, not condensing by eparating methanol tower auxiliary condenser continue condensation, a small amount of extraction send into foreshot's tank,
Six, recovery tower is malleation, and recovery tower utilizes low pressure essence tower wine vapour to heat, and foreshot, miscellaneous wine, light wine is concentrated and is pooled to miscellaneous wine
After tank, processing by returning recovery tower feed pump entrance recovery tower, the tower top ethanol vapour of recovery tower is as the part of dilution tower
Thermal source, condensed fluid major part flows back into tower, removes aldehyde wine tank from recovery tower auxiliary condenser extraction small part；From recovery tower upper
The ethanol of portion's part column plate extraction higher concentration is delivered to dilute tower, and at charging layer above 3-5 laminate, extraction rich oil wine enters miscellaneous
Alcohol oil eliminator separation Alcohols,fusel, the tower reactor waste water heating of recovery tower is miscellaneous enters wine with dregs tower vapour liquid separator after drinking, and rich oil wine is miscellaneous
Being sufficiently mixed with fresh water (FW) in alcohol oil eliminator and be layered, Alcohols,fusel is recovered to Alcohols,fusel storage tank and light wine is then admitted to miscellaneous wine
Tank.
In the technical program, the wine with dregs tower producing ethanol of double essence tower six tower quadruple effect distillations, dilution tower, low pressure essence tower, height
Pressure essence tower and eparating methanol tower are important technical characteristic, at alcohols based on double essence tower six tower quadruple effect distillations for apparatus and method
In technical field, having novelty, creativeness and practicality, the term in the technical program is all to use the art
In patent documentation explain and understand.
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.
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.
A kind of ethanol preparation facilities based on double essence tower six tower quadruple effect distillations, Fig. 1 is one embodiment of the present of invention, in conjunction with
Accompanying drawing illustrates the present embodiment, includes wine with dregs tower 1, dilution tower 2, low pressure essence tower 3, high pressure essence tower 4, eparating methanol tower 5, recovery tower
6、
Mash one-level preheater 11, two grades of preheaters 12 of mash, row's aldehyde section condenser I 13, row's aldehyde section condenser II 14, row's aldehyde section
Condenser III 15, row aldehyde section return tank 16, row aldehyde section reflux pump 17, distiller grains pump 18, wine with dregs tower condenser 19,
Dilution tower auxiliary condenser 21, dilution tower return tank 22, dilution tower reflux pump 23, two grades of preheaters 24 of thick wine, thick wine pump
25, thick wine one-level preheater 26,
Low pressure essence tower feed preheater 31, low pressure essence tower reflux pump 32, low pressure essence tower return tank 33, low pressure essence tower feed pump 34,
High pressure essence tower feed preheater 41, high pressure essence tower reflux pump 42, high pressure essence tower return tank 43, high pressure essence tower feed pump 44,
Eparating methanol tower return tank 52, eparating methanol tower reflux pump 53, eparating methanol tower auxiliary condenser 54,
Recovery tower auxiliary condenser 61, recovery tower feed preheater 62, recovery tower feed pump 63, recovery tower return tank 64, recovery
Tower reflux pump 65,
Miscellaneous wine tank 7, reboiler 8, flash tank 9, hot-water cylinder 91,
Wine with dregs tower 1 is arranged according to the row's of being disposed with aldehyde section from top to bottom and degassing stages and fermenting-ripening mash input port
Connect with the top port of the degassing stages of wine with dregs tower 1 for passing sequentially through two grades of preheaters 12 of mash one-level preheater 11 and mash, wine with dregs
The top port of the degassing stages of tower 1 is set to connect with the thermal source input port of mash one-level preheater 11, the top of row's aldehyde section
Port is set to the input port with row's aldehyde section condenser I 13, the input port of row's aldehyde section condenser II 14, row's aldehyde section condenser
The input port of III 15 be respectively communicated with and mash one-level preheater 11 thermal source output port and row aldehyde section condenser I 13 defeated
Go out port, row aldehyde section condenser II 14 output port, row aldehyde section condenser III 15 output port be respectively set to and arrange aldehyde
The input port connection of section return tank 16, the output port of row's aldehyde section return tank 16 is set to by row's aldehyde section reflux pump 17 and row
The top port connection of aldehyde section, the bottom port of wine with dregs tower 1 is set to by distiller grains pump 18 and the heat with mash one-level preheater 11
Source input port and the thermal source output port with mash one-level preheater 11 are set to connect with anaerobic treatment port, mash one
Level preheater 11 is set to by wine with dregs tower condenser 19 self-loopa and dilutes the top port of tower 2 and be set to wine with dregs tower 1 again
Boiling device 8 thermal source switching port connection, the reboiler 8 of wine with dregs tower 1 thermal source heating end be arranged on wine with dregs tower 1 bottom terminal ends and
The reboiler 8 of two wine with dregs towers 1 is set to carry out self-loopa by circulating pump, and vacuum pump is set to the top port with row's aldehyde section even
It is logical and arrange the bottom port of aldehyde section and be set to be connected by the input port of thick wine pump 25 with thick wine one-level preheater 26,
The output port of thick wine one-level preheater 26 is set to connect with the input port of thick two grades of preheaters 24 of wine and thick wine
The output port of two grades of preheaters 24 is set to connect with the pars intermedia port of dilution tower 2, and the thermal source of the reboiler 8 of wine with dregs tower 1 is handed over
Change port to be set to connect with the input port of dilution tower return tank 22 and dilute the output port of tower return tank 22 be set to
Being connected with the input port of miscellaneous wine tank 7 by dilution tower reflux pump 23, dilution tower return tank 22 is set to be refluxed by dilution tower
Pump 23 and dilution tower auxiliary condenser 21 carry out self-loopa, and the bottom port of dilution tower 2 is set to by low pressure essence tower feed pump
34 connect with the input port of low pressure essence tower feed preheater 31,
The output port of low pressure essence tower feed preheater 31 is set to connect with the bottom port of low pressure essence tower 3 and low pressure essence tower
The top port of 3 is respectively set to connect with the thermal source switching port of the reboiler 8 diluting tower 2, the reboiler 8 of eparating methanol tower 5,
The thermal source heating end of the reboiler 8 of dilution tower 2 is arranged on the bottom terminal ends of de-dilution tower 2 and dilutes the reboiler 8 of tower 2 and set
It is set to carry out self-loopa by circulating pump,
The thermal source heating end of the reboiler 8 of eparating methanol tower 5 is arranged on the bottom terminal ends of eparating methanol tower 5 and eparating methanol tower 5
Reboiler 8 is set to carry out self-loopa by circulating pump, and the thermal source switching port of the reboiler 8 of eparating methanol tower 5 is set to low
The input port connection of pressure essence tower return tank 33, the output port of low pressure essence tower return tank 33 is set to be refluxed by low pressure essence tower
Pump 32 connects with the top port of low pressure essence tower 3, the bottom port of low pressure essence tower 3 be set to by high pressure essence tower feed pump 44 with
The input port connection of high pressure essence tower feed preheater 41, the top port of low pressure essence tower 3 is set to and the centre of eparating methanol tower 5
Portion's port connection,
The output port of high pressure essence tower feed preheater 41 is set to connect with the bottom port of high pressure essence tower 4 and high pressure essence tower
The top port of 4 is set to connect with the thermal source switching port of the reboiler 8 of low pressure essence tower 3, the reboiler 8 of low pressure essence tower 3
The reboiler 8 of bottom terminal ends and low pressure essence tower 3 that thermal source heating end is arranged on low pressure essence tower 3 is set to be entered by circulating pump
Row self-loopa, the thermal source switching port of the reboiler 8 of low pressure essence tower 3 is set to the input port with high pressure essence tower return tank 43 even
Logical, the output port of high pressure essence tower return tank 43 is set to the pars intermedia end by high pressure essence tower reflux pump 42 with eparating methanol tower 5
Mouth connection, the bottom port of high pressure essence tower 4 is set to connect with the input port of miscellaneous wine tank 7 and the pars intermedia of high pressure essence tower 4
Port be set to dilution tower 2 pars intermedia port connect, the top port of high pressure essence tower 4 be set to in eparating methanol tower 5
Between the connection of portion port,
The top port of eparating methanol tower 5 is set to the input port with finished pot and connects and the top port of eparating methanol tower 5 sets
The thermal source switching port being set to the reboiler 8 with wine with dregs tower 1 connects, and the thermal source heating end of the reboiler 8 of wine with dregs tower 1 is arranged on wine with dregs tower
The reboiler 8 of the bottom terminal ends of 1 and two wine with dregs towers 1 is set to carry out self-loopa by circulating pump, the reboiler 8 of wine with dregs tower 1
Thermal source switching port is set to connect with the input port of eparating methanol tower return tank 52 and the output of eparating methanol tower return tank 52
Port is set to be connected with the top port of eparating methanol tower 5 by eparating methanol tower reflux pump 53, and eparating methanol tower return tank 52 is arranged
Output port for carrying out self-loopa and eparating methanol tower auxiliary condenser 54 by eparating methanol tower auxiliary condenser 54 is set to
Connect with the input port of foreshot's tank,
The output port of miscellaneous wine tank 7 is set to be connected by the input port of recovery tower feed pump 63 with recovery tower feed preheater 62
The bottom port that logical and recovery tower feed preheater 62 output port is set to recovery tower 6 connects, the top of recovery tower 6
Port is set to connect with the thermal source switching port of the reboiler 8 of dilution tower 2, the thermal source heating end of the reboiler 8 of dilution tower 2
Being arranged on the bottom terminal ends of dilution tower 2, the thermal source switching port of the reboiler 8 of dilution tower 2 is set to and recovery tower return tank 64
Input port connection and the output port of recovery tower return tank 64 be set to by recovery tower reflux pump 65 and recovery tower 6
Top port connection, recovery tower return tank 64 is set to carry out self-loopa, the end of recovery tower 6 by recovery tower auxiliary condenser 61
End port is set to be connected with wine with dregs tower vapour liquid separator by heat exchanger, and the output port receiving tower auxiliary condenser 61 sets
Being set to connect with aldehyde wine tank input port, the top port of recovery tower 6 is set to connect with the bottom port of dilution tower 2, reclaims
The pars intermedia port of tower 6 is set to connect with Alcohols,fusel separator input port,
The thermal source switching port of low pressure essence tower feed preheater 31 is set to connect with hot-water cylinder 91 and hot-water cylinder 91 sets respectively
It is set to by heat-exchanger pump and the thermal source heating end of thick two grades of preheaters 24 of wine, the thermal source heating end of thick wine one-level preheater 26
Heating end with the thermal source of recovery tower 6 to connect, the thermal source switching port of recovery tower feed preheater 62 is set to flash tank 9 even
Logical and flash tank 9 output port is set to connect with waste water pump, and the thermal source of recovery tower 6 heats end and high pressure essence tower 4
Thermal source heating end is set to connect with external heat source body.
In the present embodiment, wine with dregs tower 1 is set to negative pressure tower body, low pressure essence tower 3, high pressure essence tower 4, eparating methanol tower 5 and recovery
Tower 6 is set to malleation tower body.
In the present embodiment, the bottom port of high pressure essence tower 4 is arranged on the 16th laminate portion, with the input of miscellaneous wine tank 7
The bottom port of high pressure essence tower 4 of mouthful connection is arranged on the top port of the 20th laminate portion and high pressure essence tower 4 and is arranged on the
40 laminate portions.
By the setting of different port position, optimize the flow process of ethanol, improve quality and the production efficiency of ethanol.
In the present embodiment, wine with dregs tower 1, recovery tower 6, dilution tower 2, eparating methanol tower 5, low pressure essence tower 3 and high pressure essence tower 4 are arranged
For being distributed according to arrangement mode the most from left to right.
A kind of alcohol Preparation Method based on double essence tower six tower quadruple effect distillations, below in conjunction with embodiment, enters one to the present invention
Step describes, and following example are intended to illustrate rather than limitation of the invention further.The steps include:
One, fermenting-ripening wine with dregs is preheated to 50 DEG C through mash one-level preheater 11, and it is same that the degassing stages top wine vapour of wine with dregs tower 1 condenses
Time gives maturation, and wine with dregs once preheats, two grades of preheaters 12 of mash are preheated to 65 DEG C, and ripe wine with dregs secondary preheating given by distiller grains at the bottom of wine with dregs tower 1 tower,
In the degassing stages its top feed of wine with dregs tower 1, enter the carbon dioxide in the after ripening wine with dregs of wine with dregs tower 1 and part low boiling impurity in negative pressure
Separate with karusen under effect, enter mash one-level preheater 11 and aldehyde section condenser I 13, row's aldehyde section condenser containing miscellaneous thick wine vapour
II 14 condense with row's aldehyde section condenser III 15, and condensed fluid enters row's aldehyde section return tank 16, and the karusen sloughing gas enters
Wine with dregs tower 1 is flowed into by pipe gravity flow pipeline after bottom degassing stages,
While degassing wine with dregs is descending in wine with dregs tower 1, the steam that rises at the bottom of by tower heats, and wine vapour is up and useless mash separates, and useless wine with dregs exists
It is discharged at the bottom of tower, after preheating karusen, sends to anaerobism workshop section；Thick tower wine vapour ascender enters bottom degassing stages, remaining row of entrance
Bottom aldehyde section,
It is cold that the wine vapour of row's aldehyde section tower top enters row's aldehyde section condenser I 13, row's aldehyde section condenser II 14 and row's aldehyde section condenser III 15
Solidifying, condensed fluid fully enters row's aldehyde section return tank 16, sends into row aldehyde section top by row's aldehyde section reflux pump 17, uncooled containing miscellaneous
Gas is discharged by vacuum pump, arranges the crude alcohol bottom aldehyde section by thick wine pump 25 through thick wine one-level preheater 26 and thick wine two grades
Dilution tower 2 is sent into after preheater 24 preheating,
Dilution tower 2 pushes up vapour by there being the reboiler 8 of wine with dregs tower 1 to heat wine with dregs tower 1, the top vapour of eparating methanol tower 5 reboiler by wine with dregs tower 1
8 heating wine with dregs towers；
Two, preheat from the crude alcohol bottom row's aldehyde section of wine with dregs tower 1 through thick wine one-level preheater 26 and thick two grades of preheaters 24 of wine
Rear enter dilution tower 2 middle and upper part, with dilution tower 2 top enter wastewater of rectification and fresh water (FW) sufficiently conduct heat exchange and
Mass transfer exchanges, and makes the alcohol concentration of this tower bottom control at 12-15%(v/v), under relatively low alcohol concentration, normal propyl alcohol, fusel
Oil, aldehydes and esters have bigger volatility coefficient, and the tower top to dilution tower 2 moves and assembles, tower top wine vapour through wine with dregs tower 1
Reboiler 8 condenses rear section backflow, and miscellaneous wine tank 7 is sent in part extraction, and the pure faints after cleaning is from the bottom of the tower of dilution tower 2
Extract out,
A heat source part for dilution tower 2 utilize the tower top wine vapour of recovery tower 6 by dilution tower 2 reboiler 8 heat, one
Part utilize low pressure essence tower 3 tower top part wine vapour by dilution tower 2 reboiler 8 indirectly heat, remaining be utilize heat
The Secondary-steam heating of water pot 91 flash distillation,
Three, the bottom of low pressure essence tower 3, while gradually concentrating, first is entered after preheated from the light wine at the bottom of the tower of dilution tower 2
The low boiling impurities such as alcohols rise to the tower top of low pressure essence tower 3 with alcohol steam, and the wine degree of the tower top of low pressure essence tower 3 is 95.5%
(v/v) more than as semi-finished product draw enter eparating methanol tower 5, the tower top wine vapour of low pressure essence tower 3 through eparating methanol tower 5 reboiler and
Infinite reflux after reboiler 8 condensation of dilution tower 2, the preheated rear entrance high pressure essence tower 4 of tower reactor light wine of low pressure essence tower 3,
Four, the bottom of high pressure essence tower 4 is entered after preheated at the 16th plate from the light wine at the bottom of the tower of low pressure essence tower 3, gradually
While concentration, the low boiling impurity such as methanol class rises to tower top with alcohol steam, and middle rank impurity i.e. fusel iol is then in charging
Plate above 3-5 laminate is detained, and in this as entering miscellaneous wine tank after miscellaneous wine extraction, is pumped into recovery tower 6 by miscellaneous wine 7,40
Laminate has some special oils to assemble, and sends to dilution tower 2 after being plucked out of, and the wine degree of the tower top of high pressure essence tower 4 is 95.5%(v/v) with
On draw as semi-finished product and to enter eparating methanol tower 5, the tower top wine vapour of high pressure essence tower 4 is complete after the reboiler of low pressure essence tower 3 condenses
Backflow, the tower reactor spent hot water of high pressure essence tower 4 enters hot-water cylinder 91 flash distillation after preheating light wine, and flash steam is as the part of dilution tower 2
Thermal source, hot water enters the top dilution crude alcohol of dilution tower 2 by heat-exchanger pump major part, and remaining fully enters wine with dregs tower vapor-liquid separation
Device, the thermal source of high-pressure rectification tower is external thermal source,
Five, eparating methanol tower 5 is pressure-fired distillation, after the alcohol in high concentration preheating crude alcohol of low pressure essence tower 3 and high pressure essence tower 4
Enter in the middle and upper part of eparating methanol tower 5, utilize the tower top part wine vapour of low pressure essence tower 3 indirectly to heat and carry out second distillation, high-purity
Degree top grade ethanol is extracted out from the territory, tower base area of eparating methanol tower 5 and is sent into finished pot after cooling, the tower top alcohol steam of eparating methanol tower 5
Refluxing after the reboiler 8 of wine with dregs tower 1 condenses, condensing does not continues condensation by eparating methanol tower auxiliary condenser 54, and a small amount of extraction is sent
Enter foreshot's tank,
Six, recovery tower 6 is malleation, and recovery tower 6 utilizes low pressure essence tower 3 wine vapour to heat, and foreshot, miscellaneous wine, light wine are concentrated and is pooled to
After miscellaneous wine tank 7, entering recovery tower 6 by time recovery tower feed pump 63 and process, the tower top ethanol vapour of recovery tower 6 is as dilution
The part of heat energy of tower 2, condensed fluid major part flows back into tower, removes aldehyde wine tank from recovery tower auxiliary condenser 61 extraction small part；From
Recovery tower 6 the ethanol of upper part column plate extraction higher concentration deliver to dilute tower 2, adopt at charging layer above 3-5 laminate
Going out rich oil wine and enter Alcohols,fusel separator separation Alcohols,fusel, the miscellaneous wine with dregs tower vapour-liquid that enters after drinking of the tower reactor waste water heating of recovery tower 6 is divided
From device, rich oil wine is sufficiently mixed with fresh water (FW) in Alcohols,fusel separator and is layered, Alcohols,fusel be recovered to Alcohols,fusel storage tank and
Light wine is then admitted to miscellaneous wine tank 7.
The technical performance contrast table of the present embodiment:
The technical performance contrast table of the present embodiment:
The present invention has a lower feature:
1, owing to devising wine with dregs tower 1, dilution tower 2, low pressure essence tower 3, high pressure essence tower 4 and eparating methanol tower 5, fermenting-ripening mash passes through
The process of wine with dregs tower 1, obtains isolated alcohol blend body, is mixed ethanol by dilution tower 2, low pressure essence tower 3 and high pressure essence tower 4
Close liquid and carry out purification processes, get rid of methanol by eparating methanol tower 5, not in use by five tower triple effect distillation process unit or double thick towers
Seven tower energy-saving distilling process devices, therefore reduce energy consumption.
2, owing to devising recovery tower 6, improve the utilization rate of ethanol.
3, owing to devising wine with dregs tower 1, dilution tower 2, low pressure essence tower 3, high pressure essence tower 4, eparating methanol tower 5 and recovery tower 6, two towers
Enter vapour, six tower work, reduce the consumption of still-process to greatest extent, ton top grade ethanol consumption vapour is than five tower Three-effect energy-saving top grade wine
Essence distillation technique saves steam more than 25%, saves condensation use water 25%, and joint vapour water-saving result is notable；
4, owing to devising reboiler 8, reboiler uses falling film evaporator principle, reduces adding between tower and tower to greatest extent
The hot temperature difference, effectively reduces column bottom temperature and pressure.
5, owing to devising wine with dregs tower 1, dilution tower 2, low pressure essence tower 3, high pressure essence tower 4, eparating methanol tower 5 and recovery tower 6, use
High Efficient Column Internals, improves more than 30% than conventional column efficiency, and the design margin making device is bigger, and input-output ratio is the most economical.
6, owing to devising wine with dregs tower 1, dilution tower 2, low pressure essence tower 3, high pressure essence tower 4, eparating methanol tower 5 and recovery tower 6, use
" variable frequency adjustment power-saving technique " Substitute For Partial governor valve control, can economize on electricity 20%；Control system uses " computer distribution control DCS
Technology." greatly reducing operative employee's quantity, ` can realize one man operation completely.
7, 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 the wine with dregs tower 1 producing ethanol of double essence tower six tower quadruple effects distillations, dilution tower 2, low pressure essence tower 3, high
The technical characteristic that pressure essence tower 4 and eparating methanol tower 5 couple is all one of embodiments of the invention, and embodiment described above is each
Technical characteristic can combine arbitrarily, for meeting the requirement of Patent Law, patent regulation and guidelines for examination, no longer to upper
The embodiment stating all possible combination of each technical characteristic in embodiment is all described.
Therefore at alcohols based on double essence tower six tower quadruple effects distillations in apparatus and method technical field, every include
Internal layer 1 is set to the chemical fertilizer technology contents with the mixture of the high pressure formation of straw or leaves of plants body all in the present invention
Protection domain in.
Above-described embodiment is ethanol preparation facilities based on double essence tower six tower quadruple effect distillations provided by the present invention and side
A kind of way of realization of method, according to other deformation of scheme provided by the present invention, increases or reduces composition therein or step
Suddenly, 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 (7)
1. alcohols based on double essence tower six tower quadruple effect distillations are for apparatus and method, it is characterized in that: include by degassing
Obtain the wine with dregs tower (1) of crude alcohol with row's aldehyde, be set to connect and obtain the dilution tower (2) of faints with wine with dregs tower (1), be set to
Connect and produce low pressure essence tower (3) of absolute alcohol and faints with dilution tower (2), be set to and the output of low pressure essence tower (3)
The port connection of faints and produce high pressure essence tower (4) of absolute alcohol, be set to the port of absolute alcohol with low pressure essence tower (3)
The eparating methanol tower (5) of finished product ethanol, the heat of high pressure essence tower (4) is connected and produces with the port of the absolute alcohol of high pressure essence tower (4)
Heating end, source is set to connect with external heat source body and the thermal source heating end of wine with dregs tower (1), the thermal source heating of dilution tower (2)
End, the thermal source heating end of low pressure essence tower (3), thermal source heating end, the absolute alcohol of high pressure essence tower (4) of eparating methanol tower (5)
Heat exchanger between be set to be interconnected.
Alcohol based on double essence tower six tower quadruple effect distillations the most according to claim 1, for apparatus and method, is characterized in that:
According to double essence tower six tower quadruple effects distillation the mode producing ethanol wine with dregs tower (1), dilution tower (2), low pressure essence tower (3), high pressure essence
Tower (4) and eparating methanol tower (5) are coupled to each other.
Alcohol based on double essence tower six tower quadruple effect distillations the most according to claim 1, for apparatus and method, is characterized in that:
Also include recovery tower (6),
Mash one-level preheater (11), two grades of preheaters (12) of mash, row's aldehyde section condenser I (13), row's aldehyde section condenser II
(14), row's aldehyde section condenser III (15), row's aldehyde section return tank (16), row's aldehyde section reflux pump (17), distiller grains pump (18), the condensation of wine with dregs tower
Device (19),
Dilution tower auxiliary condenser (21), dilution tower return tank (22), dilution tower reflux pump (23), two grades of preheaters of thick wine
(24), thick wine pump (25), thick wine one-level preheater (26),
Low pressure essence tower feed preheater (31), low pressure essence tower reflux pump (32), low pressure essence tower return tank (33), low pressure essence tower feed
Pump (34),
High pressure essence tower feed preheater (41), high pressure essence tower reflux pump (42), high pressure essence tower return tank (43), high pressure essence tower feed
Pump (44),
Eparating methanol tower return tank (52), eparating methanol tower reflux pump (53), eparating methanol tower auxiliary condenser (54),
Recovery tower auxiliary condenser (61), recovery tower feed preheater (62), recovery tower feed pump (63), recovery tower return tank
(64), recovery tower reflux pump (65),
Miscellaneous wine tank (7), reboiler (8), flash tank (9), hot-water cylinder (91),
Wine with dregs tower (1) sets according to the row's of being disposed with aldehyde section from top to bottom and degassing stages and fermenting-ripening mash input port
It is set to the top port passing sequentially through mash one-level preheater (11) and two grades of preheaters (12) of mash with the degassing stages of wine with dregs tower (1)
Connection, the top port of the degassing stages of wine with dregs tower (1) is set to connect with the thermal source input port of mash one-level preheater (11), row
The top port of aldehyde section is set to the input port with row's aldehyde section condenser I (13), the input of row's aldehyde section condenser II (14)
Mouthful, row aldehyde section condenser III (15) input port be respectively communicated with and mash one-level preheater (11) thermal source output port and
Arrange the output port of aldehyde section condenser I (13), the output port of row's aldehyde section condenser II (14), arrange aldehyde section condenser III (15)
Output port is respectively set to connect with the input port arranging aldehyde section return tank (16), the output port of row's aldehyde section return tank (16)
Being set to be connected by the top port of row's aldehyde section reflux pump (17) with row's aldehyde section, the bottom port of wine with dregs tower (1) is set to pass through
Distiller grains pump (18) with the thermal source input port of mash one-level preheater (11) and with the thermal source of mash one-level preheater (11)
Output port is set to connect with anaerobic treatment port, and mash one-level preheater (11) is set to by wine with dregs tower condenser (19) certainly
Circulation and dilute the top port of tower (2) and be set to the thermal source switching port of the reboiler (8) with wine with dregs tower (1) and connect, wine with dregs tower
(1) the thermal source heating end of reboiler (8) is arranged on the bottom terminal ends of wine with dregs tower (1) and the reboiler (8) of two wine with dregs towers (1)
Being set to carry out self-loopa by circulating pump, vacuum pump is set to connect with the top port of row's aldehyde section and arrange the bottom of aldehyde section
Port is set to be connected by the input port of thick wine pump (25) with thick wine one-level preheater (26),
The output port of thick wine one-level preheater (26) be set to connect with the input port of two grades of preheaters (24) of thick wine and
The output port of thick two grades of preheaters (24) of wine is set to connect with the pars intermedia port of dilution tower (2), the reboiler of wine with dregs tower (1)
(8) thermal source switching port is set to connect with the input port of dilution tower return tank (22) and dilute tower return tank (22)
Output port is set to be connected with the input port of miscellaneous wine tank (7) by dilution tower reflux pump (23), dilution tower return tank (22)
It is set to carry out self-loopa, the bottom end of dilution tower (2) by dilution tower reflux pump (23) and dilution tower auxiliary condenser (21)
Mouth is set to be connected by the input port of low pressure essence tower feed pump (34) with low pressure essence tower feed preheater (31),
The output port of low pressure essence tower feed preheater (31) is set to connect and low pressure with the bottom port of low pressure essence tower (3)
The top port of essence tower (3) is respectively set to and the heat of the reboiler (8) diluting the reboiler (8) of tower (2), eparating methanol tower (5)
Source switching port connection, the thermal source heating end of the reboiler (8) of dilution tower (2) is arranged on the bottom terminal ends of de-dilution tower (2)
And the reboiler (8) diluting tower (2) is set to carry out self-loopa by circulating pump,
The thermal source heating end of the reboiler (8) of eparating methanol tower (5) is arranged on bottom terminal ends and the separating methanol of eparating methanol tower (5)
The reboiler (8) of tower (5) is set to carry out self-loopa by circulating pump, the thermal source exchange end of the reboiler (8) of eparating methanol tower (5)
Mouth is set to connect with the input port of low pressure essence tower return tank (33), and the output port of low pressure essence tower return tank (33) is set to
Being connected by the top port of low pressure essence tower reflux pump (32) with low pressure essence tower (3), the bottom port of low pressure essence tower (3) is set to
Connected by the input port of high pressure essence tower feed pump (44) with high pressure essence tower feed preheater (41), the top of low pressure essence tower (3)
End port is set to connect with the pars intermedia port of eparating methanol tower (5),
The output port of high pressure essence tower feed preheater (41) is set to connect and high pressure with the bottom port of high pressure essence tower (4)
The top port of essence tower (4) is set to the thermal source switching port of the reboiler (8) with low pressure essence tower (3) and connects, low pressure essence tower (3)
The thermal source heating end of reboiler (8) be arranged on bottom terminal ends and the reboiler of low pressure essence tower (3) of low pressure essence tower (3)
(8) being set to carry out self-loopa by circulating pump, the thermal source switching port of the reboiler (8) of low pressure essence tower (3) is set to high
The input port connection of pressure essence tower return tank (43), the output port of high pressure essence tower return tank (43) is set to by high pressure essence tower
Reflux pump (42) connects with the pars intermedia port of eparating methanol tower (5), and the bottom port of high pressure essence tower (4) is set to and miscellaneous wine tank
(7) input port connection and the pars intermedia port of high pressure essence tower (4) are set to the pars intermedia port with dilution tower (2) even
Logical, the top port of high pressure essence tower (4) is set to connect with the pars intermedia port of eparating methanol tower (5),
The top port of eparating methanol tower (5) is set to the input port with finished pot and connects and the top end of eparating methanol tower (5)
Mouth is set to the thermal source switching port of the reboiler (8) with wine with dregs tower (1) and connects, the thermal source fire end of the reboiler (8) of wine with dregs tower (1)
The reboiler (8) of bottom terminal ends and two wine with dregs towers (1) that portion is arranged on wine with dregs tower (1) is set to be carried out from following by circulating pump
Ring, the thermal source switching port of the reboiler (8) of wine with dregs tower (1) is set to connect also with the input port of eparating methanol tower return tank (52)
And the output port of eparating methanol tower return tank (52) is set to the top by eparating methanol tower reflux pump (53) Yu eparating methanol tower (5)
Port connects, and eparating methanol tower return tank (52) is set to carry out self-loopa and piptonychia by eparating methanol tower auxiliary condenser (54)
The output port of alcohol tower auxiliary condenser (54) is set to connect with the input port of foreshot's tank,
The output port of miscellaneous wine tank (7) is set to the input by recovery tower feed pump (63) Yu recovery tower feed preheater (62)
The output port of port connection and recovery tower feed preheater (62) is set to connect with the bottom port of recovery tower (6), returns
The top port receiving tower (6) is set to connect with the thermal source switching port of the reboiler (8) of dilution tower (2), and dilution tower (2) is again
The thermal source heating end of boiling device (8) is arranged on the bottom terminal ends of dilution tower (2), the thermal source exchange of the reboiler (8) of dilution tower (2)
Port is set to connect with the input port of recovery tower return tank (64) and the output port setting of recovery tower return tank (64)
For being connected by the top port of recovery tower reflux pump (65) with recovery tower (6), recovery tower return tank (64) is set to by returning
Receiving tower auxiliary condenser (61) and carry out self-loopa, the bottom port of recovery tower (6) is set to by heat exchanger and wine with dregs tower vapour-liquid
Separator connects, and the output port receiving tower auxiliary condenser 61 is set to connect with aldehyde wine tank input port, recovery tower (6)
Top port be set to dilution tower (2) bottom port connect, the pars intermedia port of recovery tower (6) is set to and Alcohols,fusel
Separator input port connects,
The thermal source switching port of low pressure essence tower feed preheater (31) is set to connect with hot-water cylinder (91) and hot-water cylinder (91)
It is respectively set to thermal source heating end, the heat of thick wine one-level preheater (26) by heat-exchanger pump with two grades of preheaters (24) of thick wine
Heating end, source is heated end with the thermal source of recovery tower (6) and is connected, and the thermal source switching port of recovery tower feed preheater (62) sets
It is set to connect with flash tank (9) and the output port of flash tank (9) is set to connect with waste water pump, the thermal source of recovery tower (6)
Heating end is set to connect with external heat source body.
Alcohol based on double essence tower six tower quadruple effect distillations the most according to claim 3, for apparatus and method, is characterized in that:
Wine with dregs tower (1) is set to negative pressure tower body, and low pressure essence tower (3), high pressure essence tower (4), eparating methanol tower (5) and recovery tower (6) are just set to
Pressure tower body.
Alcohol based on double essence tower six tower quadruple effect distillations the most according to claim 3, for apparatus and method, is characterized in that:
The bottom port of high pressure essence tower (4) is arranged on the 16th laminate portion, the high pressure essence tower connected with the input port of miscellaneous wine tank (7)
(4) bottom port is arranged on the top port of the 20th laminate portion and high pressure essence tower (4) and is arranged on the 40th laminate portion.
Alcohol based on double essence tower six tower quadruple effect distillations the most according to claim 3, for apparatus and method, is characterized in that:
Wine with dregs tower (1), recovery tower (6), dilution tower (2), eparating methanol tower (5), low pressure essence tower (3) and high pressure essence tower (4) are set to according to depending on
Secondary arrangement mode distribution from left to right.
7. alcohol Preparation Methods based on double essence tower six tower quadruple effect distillations, is characterized in that: the steps include:
One, fermenting-ripening wine with dregs is preheated to 50 DEG C through mash one-level preheater (11), the degassing stages top wine vapour condensation of wine with dregs tower (1)
While give that ripe wine with dregs once preheats, two grades of preheaters (12) of mash are preheated to 65 DEG C, ripe wine with dregs two given by distiller grains at the bottom of wine with dregs tower (1) tower
Secondary preheating, in the degassing stages its top feed of wine with dregs tower (1), enters the carbon dioxide in the after ripening wine with dregs of wine with dregs tower (1) and part low boiling
Impurity separates with karusen under the effect of negative pressure, enters mash one-level preheater (11) and aldehyde section condenser I containing miscellaneous thick wine vapour
13, row's aldehyde section condenser II (14) and row's aldehyde section condenser III (15) condense, and condensed fluid enters row's aldehyde section return tank (16),
Wine with dregs tower (1) is flowed into by pipe gravity flow pipeline after sloughing bottom the karusen entrance degassing stages of gas,
While degassing wine with dregs is descending in wine with dregs tower (1), the steam that rises at the bottom of by tower heats, and wine vapour is up and useless mash separates, useless wine with dregs
It is being discharged at the bottom of tower, after preheating karusen, is sending to anaerobism workshop section；Thick tower wine vapour ascender enters bottom degassing stages, and remaining enters
Bottom row's aldehyde section,
The wine vapour of row's aldehyde section tower top enters row's aldehyde section condenser I (13), row's aldehyde section condenser II (14) and row's aldehyde section condenser III
(15) condensation, condensed fluid fully enters row's aldehyde section return tank (16), sends into row aldehyde section top by row's aldehyde section reflux pump (17), not
The body containing miscellaneous QI of condensation is discharged by vacuum pump, arranges the crude alcohol bottom aldehyde section by thick wine pump (25) through thick wine one-level preheater
(26) and dilution tower (2) is sent into after two grades of preheater (24) preheatings of thick wine,
Dilution tower (2) top vapour is by there being the reboiler (8) of wine with dregs tower (1) to heat wine with dregs tower (1), and the top vapour of eparating methanol tower (5) passes through wine with dregs
Reboiler (8) the heating wine with dregs tower of tower (1)；
Two, from the crude alcohol bottom row's aldehyde section of wine with dregs tower (1) through thick wine one-level preheater (26) and two grades of preheaters of thick wine
(24) entering the middle and upper part of dilution tower (2) after preheating, the wastewater of rectification and the fresh water (FW) that enter with dilution tower (2) top are carried out fully
Heat transfer exchange and mass transfer exchange, make the alcohol concentration of this tower bottom control at 12-15%(v/v), in relatively low alcohol concentration
Under, normal propyl alcohol, Alcohols,fusel, aldehydes and esters have bigger volatility coefficient, and the tower top to dilution tower (2) moves and assembles,
The tower top wine vapour reboiler (8) through wine with dregs tower (1) condenses rear section backflow, and miscellaneous wine tank (7), pure after cleaning are sent in part extraction
Faints from dilution tower (2) tower at the bottom of extract out,
A heat source part for dilution tower (2) utilize the tower top wine vapour of recovery tower (6) by dilution tower (2) reboiler
(8) heating, a part utilize the part wine vapour of the tower top of low pressure essence tower (3) by dilution tower (2) reboiler (8) indirectly add
Heat, remaining is the Secondary-steam heating utilizing hot-water cylinder (91) flash distillation,
Three, the bottom of low pressure essence tower (3) is entered after preheated from the light wine at the bottom of the tower of dilution tower (2), same gradually concentrate
Time, the low boiling impurity such as methanol class rises to the tower top of low pressure essence tower (3) with alcohol steam, the tower top of low pressure essence tower (3) pure
Wine degree is 95.5%(v/v) more than as semi-finished product draw enter eparating methanol tower (5), the tower top wine vapour of low pressure essence tower (3) is through piptonychia
Infinite reflux after reboiler (8) condensation of the reboiler of alcohol tower (5) and dilution tower (2), the tower reactor light wine of low pressure essence tower (3) is preheated
Rear entrance high pressure essence tower (4),
Four, enter the bottom of high pressure essence tower (4) after preheated at the 16th plate from the light wine at the bottom of the tower of low pressure essence tower (3),
While gradually concentrating, the low boiling impurity such as methanol class rises to tower top with alcohol steam, and middle rank impurity i.e. fusel iol then exists
Feedboard above 3-5 laminate is detained, and in this as entering miscellaneous wine tank after miscellaneous wine extraction, is pumped into recovery tower (6) by miscellaneous wine 7,
Having some special oils to assemble at 40 laminates, send to dilution tower (2) after being plucked out of, the pure wine degree of the tower top of high pressure essence tower (4) is
Drawing as semi-finished product more than 95.5%(v/v) and enter eparating methanol tower (5), the tower top wine vapour of high pressure essence tower (4) is through low pressure essence tower
(3) infinite reflux after reboiler condensation, the tower reactor spent hot water of high pressure essence tower (4) enters hot-water cylinder (91) flash distillation after preheating light wine,
Flash steam dilutes thick wine as the part of heat energy of dilution tower (2), the top that hot water enters dilution tower (2) by heat-exchanger pump major part
Essence, remaining fully enters wine with dregs tower vapour liquid separator, and the thermal source of high-pressure rectification tower is external thermal source,
Five, eparating methanol tower (5) is pressure-fired distillation, and the alcohol in high concentration from low pressure essence tower (3) and high pressure essence tower (4) preheats thick
Enter in the middle and upper part of eparating methanol tower (5) after ethanol, utilize the tower top part wine vapour of low pressure essence tower (3) indirectly to heat and carry out secondary
Distillation, high-purity top grade ethanol is extracted out from the territory, tower base area of eparating methanol tower (5) and is sent into finished pot, eparating methanol tower (5) after cooling
Tower top alcohol steam through wine with dregs tower (1) reboiler (8) condense after reflux, not condensing pass through eparating methanol tower auxiliary condenser (54)
Continuing condensation, foreshot's tank is sent in a small amount of extraction,
Six, recovery tower (6) is malleation, and recovery tower (6) utilizes low pressure essence tower (3) wine vapour to heat, and foreshot, miscellaneous wine, light wine is concentrated
After being pooled to miscellaneous wine tank (7), process by returning recovery tower feed pump (63) entrance recovery tower (6), the tower top of recovery tower (6)
Ethanol vapour is as the part of heat energy of dilution tower (2), and condensed fluid major part flows back into tower, from recovery tower auxiliary condenser (61) extraction
Small part removes aldehyde wine tank；From recovery tower (6) the ethanol of upper part column plate extraction higher concentration deliver to dilute tower (2), from
At charging layer above 3-5 laminate, extraction rich oil wine enters Alcohols,fusel separator separation Alcohols,fusel, and the tower reactor waste water of recovery tower (6) adds
Heat is miscellaneous enters wine with dregs tower vapour liquid separator after drinking, and rich oil wine is sufficiently mixed with fresh water (FW) in Alcohols,fusel separator and is layered, fusel
Recovery of oil is then admitted to miscellaneous wine tank (7) to Alcohols,fusel storage tank and light wine.
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Cited By (2)
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| 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 |
| CN114642894A (en) * | 2022-03-14 | 2022-06-21 | 肥城金塔酒精化工设备有限公司 | Distillation system and distillation method for producing super-high grade alcohol by six-tower three-effect differential pressure distillation |
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| CN203256177U (en) * | 2013-05-23 | 2013-10-30 | 肥城金塔机械有限公司 | Alcohol preparation device |
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| 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 |
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| CN114642894A (en) * | 2022-03-14 | 2022-06-21 | 肥城金塔酒精化工设备有限公司 | Distillation system and distillation method for producing super-high grade alcohol by six-tower three-effect differential pressure distillation |
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