CN204310984U - Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants - Google Patents

Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants Download PDF

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Publication number
CN204310984U
CN204310984U CN201420807044.0U CN201420807044U CN204310984U CN 204310984 U CN204310984 U CN 204310984U CN 201420807044 U CN201420807044 U CN 201420807044U CN 204310984 U CN204310984 U CN 204310984U
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China
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outlet
mash
column
preheater
communicated
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CN201420807044.0U
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Chinese (zh)
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姜新春
李璟
周宏才
唐兆兴
黎进英
高志贵
谭晓东
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广东中科天元新能源科技有限公司
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Publication of CN204310984U publication Critical patent/CN204310984U/en

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Abstract

The utility model discloses a kind of seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants, comprise topping still, combined column, water wash column, rectifying tower, methanol column, molecular sieve device and mash primary heater unit; Described mash primary heater unit, topping still, combined column are communicated with successively, and described rectifying tower, water wash column, methanol column are communicated with successively, and described mash primary heater unit is also communicated in described water wash column; Described combined column has gas-phase alcohol vapour extraction mouth and is communicated in described molecular sieve device, and the top of described molecular sieve device has anhydrous product outlet, and described methanol column has the outlet of top grade alcohol.Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and the fuel alcohol plants that the utility model relates to, realize product production capacity to regulate flexibly between high grade edible spirit and alcohol fuel, meeting the market requirement rapidly, and the steam consumption and the water consumption that reduce a whole set of distillation and dewatering system.

Description

Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants
Technical field
The utility model relates to retort field, particularly relates to a kind of seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants.
Background technology
In current biomass to alcohol conversion process, top grade alcohol and fuel ethanol production be respective independently a set of Distallation systm often, when alcohol fuel is produced separately, and distillation and the dewatering system steam consumption about 2.0 tons of/ton of finished product alcohol, when top grade alcohol is produced separately, the Distallation systm steam consumption about 2.3 tons of/ton of finished product alcohol.Fuel ethanol production device can not produce high grade edible spirit, and remove to produce alcohol fuel with the high grade edible spirit finished product that top grade alcohol distillation device is produced, plant factor not only can be caused not high, and the steam consumption of distillation and dewatering system is also up to 2.5 tons of/ton of alcohol fuels.Therefore, build the alcohol distillation device of a set of single product, can not switch product fast flexibly, and build the water distilling apparatus of two cover products according to the market requirement, its facility investment is larger again.
Utility model content
Based on this, be necessary that provide one to realize product production capacity regulates flexibly between high grade edible spirit and alcohol fuel, meeting the market requirement rapidly, and reduce a whole set of distillation and the steam consumption of dewatering system and the high grade edible spirit of water consumption and alcohol fuel coproduction energy-saving distillation device.
A kind of seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants, comprise topping still, combined column, water wash column, rectifying tower, methanol column, molecular sieve device and mash primary heater unit;
Described mash primary heater unit, topping still, combined column are communicated with successively, and described rectifying tower, water wash column, methanol column are communicated with successively, and described mash primary heater unit is also communicated in described water wash column;
Described combined column has gas-phase alcohol vapour extraction mouth and is communicated in described molecular sieve device, and the top of described molecular sieve device has anhydrous product outlet, and described methanol column has the outlet of top grade alcohol.
Wherein in an embodiment, described mash primary heater unit has mash one-level preheater, mash secondary preheater and mash three grades of preheaters, and described mash one-level preheater, mash secondary preheater and mash three grades of preheaters all have cold-side inlet, cold side outlet, hot-side inlet and hot junction outlet;
The cold-side inlet of the cold-side inlet of the cold-side inlet of ripe wine with dregs feed pipe, mash one-level preheater, the cold side outlet of mash one-level preheater, mash secondary preheater, the cold side outlet of mash secondary preheater, mash three grades of preheaters, the cold side outlet of mash three grades of preheaters and the top entry pipeline of topping still are communicated with successively;
The hot-side inlet of described mash one-level preheater also with the top wine vapour pipeline communication of topping still, the hot junction outlet of mash one-level preheater is communicated with water wash column, the hot-side inlet of described mash three grades of preheaters is communicated with the bottom of topping still, and the hot junction outlet of described mash three grades of preheaters has wastewater treatment equipment.
Wherein in an embodiment, also comprise recovery tower, described combined column is communicated in described recovery tower, and described recovery tower is also communicated in described water wash column;
The hot-side inlet of described mash secondary preheater and the top wine vapour pipeline communication of recovery tower, the hot junction outlet of described mash secondary preheater is communicated in the overhead reflux mouth of pipe of industrial spirit discharge tube and recovery tower respectively.
Wherein in an embodiment, circulate topping still reboiler, combined column reboiler, water wash column reboiler, methanol column reboiler and recovery tower reboiler respectively that be connected with for providing heat in the bottom of described topping still, combined column, water wash column, methanol column and recovery tower, described topping still reboiler, combined column reboiler, water wash column reboiler, methanol column reboiler and recovery tower reboiler all have hot-side inlet and hot junction outlet, and described combined column reboiler and recovery tower reboiler also all have hot junction liquid-phase outlet;
The hot-side inlet of described topping still reboiler and the top wine vapour pipeline communication of described combined column, the hot junction outlet of described topping still reboiler is communicated with the overhead reflux mouth of pipe of described combined column, the hot-side inlet of described combined column reboiler and the top wine vapour pipeline communication of described rectifying tower, the hot junction outlet of described combined column reboiler is communicated with the hot-side inlet of described recovery tower reboiler, the hot junction outlet of described recovery tower reboiler is communicated with the hot-side inlet of described water wash column reboiler, the hot-side inlet of described methanol column reboiler and the top wine vapour pipeline communication of water wash column, the hot junction outlet of described methanol column reboiler is communicated with the overhead reflux mouth of pipe of water wash column, the hot junction liquid-phase outlet of described combined column reboiler, the hot junction liquid-phase outlet of recovery tower reboiler and the hot junction outlet of described water wash column reboiler are all communicated with the overhead reflux mouth of pipe of described rectifying tower.
Wherein in an embodiment, described topping still top is provided with de-gassing vessel and the side take-off device for the ripe mash of extraction, and described mash primary heater unit has mash level Four preheater, and described mash level Four preheater has cold side outlet and cold-side inlet;
The outlet conduit of described side take-off device, the cold-side inlet of described mash level Four preheater, the cold side outlet of mash level Four preheater and combined column are communicated with successively.
Wherein in an embodiment, also comprise assorted wine tank, assorted wine preheater, the bottom of described topping still, combined column, water wash column, methanol column and recovery tower all has outlet at bottom pipeline;
The hot-side inlet of described mash three grades of preheaters and the outlet at bottom pipeline communication of topping still, the outlet at bottom pipeline of described combined column is communicated with the hot-side inlet of described mash level Four preheater, and the hot junction outlet of described mash level Four preheater is communicated with the bottom of described topping still;
Described assorted wine tank, serial communication is between described combined column, recovery tower successively for assorted wine preheater, and the outlet at bottom pipeline of described recovery tower is also communicated in described assorted wine preheater, and described assorted wine preheater also has the outer relief outlet arranged for waste water outward;
Middle part, the water wash column backflow mouth of pipe of described rectifying tower are also connected to the recovery of described assorted wine tank for assorted wine.
Wherein in an embodiment, also comprise topping still condenser, thick wine tank, crude wine preheater, light wine preheater and methanol column condenser, described topping still condenser, thick wine tank and crude wine preheater are series between the hot junction outlet of described mash one-level preheater and water wash column successively;
Described mash one-level preheater is also communicated in described thick wine tank, and the top of described recovery tower is also communicated in described thick wine tank, and described molecular sieve device also has for outer row's light wine to the outlet of described thick wine tank;
The outlet at bottom pipeline of described rectifying tower is also communicated in described crude wine preheater, and described crude wine preheater is also communicated in the top of described water wash column;
Described light wine preheater serial communication is between the outlet at bottom pipeline and described crude wine preheater of described rectifying tower, also serial communication is between the outlet at bottom pipeline and described rectifying tower of described water wash column for described light wine preheater, and described light wine preheater also has the outer relief outlet of waste water;
Described methanol column condenser circulation is connected to the top of described methanol column, and described methanol column condenser also has the outer relief outlet of industrial spirit.
Wherein in an embodiment, also comprise potato spirit separator and potato spirit condenser, described potato spirit separator, potato spirit condenser successively series circulation are connected to described recovery tower, and described potato spirit separator has for the outer relief outlet of potato spirit of outer row's potato spirit and the dilution water inlet for injecting dilution water.
Wherein in an embodiment, also comprise regeneration fume superheater, regeneration fume superheater has fume entrance and fume outlet, and described regeneration fume superheater also has steam-in and condensation-water drain, and described molecular sieve device has two molecular sieves;
The bottom parallel communication of two described molecular sieves is in the gas-phase alcohol vapour extraction mouth of described combined column, the top parallel communication of two described molecular sieves is in the fume entrance of described regeneration fume superheater and the alcohol fuel finished product extraction mouth of pipe, the fume outlet of described regeneration fume superheater is communicated in the top of two described molecular sieves respectively, and the bottom of two described molecular sieves is also communicated in described thick wine tank.
Wherein in an embodiment, described combined column also has ordinary alcohol extraction mouth, and described rectifying tower also has steam-in.
Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and the fuel alcohol plants that the utility model relates to, changeable coproduction high grade edible spirit and ordinary alcohol.When switching coproduction high grade edible spirit and ordinary alcohol, combined column tower top wine vapour does not go molecular sieve to produce alcohol fuel, the mutually general level edible ethanol of a few laminate Produced Liquid from described combined column reflux layer, as general level finished product alcohol after cooling.
The seven tower multiple-effect differential distillation technology coproduction top grade alcohol that the utility model relates to and the Energy Coupling mode of fuel alcohol plant are: topping still is negative-pressure operation, and combined column is normal pressure or micro-pressure operation, water wash column is normal pressure or micro-pressure operation, rectifying tower are pressurized operation, methanol column is negative-pressure operation, recovery tower is atmospheric operation.Rectifying tower provides thermal load by the primary steam from boiler; The alcohol steam of rectifying tower tower top is successively by combined column reboiler, recovery tower reboiler, water wash column reboiler indirect heating combined column, recovery tower, water wash column; Combined column wine vapour is by topping still reboiler indirect heating topping still; Water wash column wine vapour is by methanol column reboiler indirect heating methanol column; Topping still top wine vapour, recovery tower top wine vapour, the topping still mash that gives up carries out one-level, secondary, three grades of preheatings to ripe wine with dregs, combined column gives up wine with dregs by mash level Four preheater preheats combined column charging mash, go topping still tower reactor after cooling, useless wine with dregs unification discharges wastewater treatment working section from topping still tower reactor; Rectifying tower waste water by the charging of light wine preheater preheats rectifying tower light wine, as water wash column bath water after cooling, remainder as other workshops process water or arrange outward.
The seven tower multiple-effect differential distillation technology coproduction top grade alcohol that the utility model relates to and the advantage of fuel alcohol plant and effect are: this device can produce high grade edible spirit and alcohol fuel simultaneously, and changeable production high grade edible spirit and general level edible ethanol, can according to the Productivity Allocation of market demand flexible high grade edible spirit, alcohol fuel and general level edible ethanol.The production technique of this device adopts differential pressure multiple-effect thermal coupling mode, and steam consumption is reduced to 1.6 ~ 1.8 tons of/ton of finished product alcohol, when independently producing than high grade edible spirit and alcohol fuel energy-conservation 25 ~ 40%.And facility investment when independently producing than high grade edible spirit and alcohol fuel greatly reduces.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plant schematic diagram.
Description of reference numerals:
1, mash one-level preheater; 2, mash secondary preheater; 3, mash three grades of preheaters; 4, topping still; 5, topping still reboiler; 6, topping still condenser; 7, mash level Four preheater; 8, combined column; 9, combined column reboiler; 10, thick wine tank; 11, crude wine preheater; 12, water wash column; 13, water wash column reboiler; 14, light wine preheater; 15, rectifying tower; 16, methanol column; 17, methanol column reboiler; 18, methanol column condenser; 19, assorted wine tank; 20, assorted wine preheater; 21, recovery tower; 22, recovery tower reboiler; 23, potato spirit condenser; 24, potato spirit separator; 25, molecular sieve; 26, wine vapour superheater is regenerated.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when equipment is called as " being fixed on " another equipment, directly can there is equipment placed in the middle in it on another or also.When an equipment is considered to " connection " another equipment, it can be directly connected to another equipment or may there is equipment component simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification sheets of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.
A kind of high grade edible spirit and alcohol fuel coproduction energy-saving distillation device, comprise topping still 4, combined column 8, water wash column 12, rectifying tower 15, methanol column 16, molecular sieve device and mash primary heater unit, described molecular sieve device has two molecular sieves 25;
Described mash primary heater unit, topping still 4, combined column 8 are communicated with successively, and described rectifying tower 15, water wash column 12, methanol column 16 are communicated with successively, and described mash primary heater unit is also communicated in described water wash column 12;
Described combined column 8 has gas-phase alcohol vapour extraction mouth and is connected to molecular sieve 25 and produces alcohol fuel, and the top of described molecular sieve 25 has anhydrous product outlet, and described methanol column 16 has the outlet of top grade alcohol.
Further, described mash primary heater unit has mash one-level preheater 1, mash secondary preheater 2 and mash three grades of preheaters 3, and described mash one-level preheater 1, mash secondary preheater 2 and mash three grades of preheaters 3 all have cold-side inlet, cold side outlet, hot-side inlet and hot junction outlet; The wine steam pipe road, top of the cold-side inlet of the cold-side inlet of ripe wine with dregs feed pipe, mash one-level preheater 1, the cold side outlet of mash one-level preheater 1, mash secondary preheater 2, the cold side outlet of mash secondary preheater 2, the cold-side inlet of mash three grades of preheaters 3, the cold side outlet of mash three grades of preheaters 3 and topping still 4 is communicated with successively;
The hot-side inlet of described mash one-level preheater 1 also with the top wine vapour pipeline communication of topping still 4, the hot junction outlet of mash one-level preheater 1 is communicated with water wash column 12;
The hot-side inlet of described mash three grades of preheaters 3 is communicated with the bottom of topping still 4, and the hot junction outlet of described mash three grades of preheaters 3 has wastewater treatment equipment.
Further, also comprise recovery tower 21, the hot-side inlet of described mash secondary preheater 2 and the top wine vapour pipeline communication of recovery tower 21, the hot junction outlet of described mash secondary preheater 2 is communicated in the overhead reflux mouth of pipe of industrial spirit discharge tube and recovery tower 21 respectively; The hot junction of described mash secondary preheater 2 exports the pipeline be communicated with the overhead reflux mouth of pipe of recovery tower 21 and is also communicated with industrial spirit pipeline.
Described combined column 8 is communicated in described recovery tower 21, and described recovery tower 21 is also communicated in described water wash column 12.
Further, the bottom of described topping still 4, combined column 8, water wash column 12, methanol column 16 and recovery tower 21 is connected to topping still reboiler 5, combined column reboiler 9, water wash column reboiler 13, methanol column reboiler 17 and recovery tower reboiler 22 for providing heat, described topping still reboiler 5, combined column reboiler 9, water wash column reboiler 13, methanol column reboiler 17 and recovery tower reboiler 22 all have hot-side inlet and hot junction outlet, and described combined column reboiler 9 and recovery tower reboiler 22 also all have hot junction liquid-phase outlet;
The hot-side inlet of described topping still reboiler 5 and the top wine vapour pipeline communication of described combined column 8, the hot junction outlet of described topping still reboiler 5 is communicated with the overhead reflux mouth of pipe of described combined column 8, the hot-side inlet of described combined column reboiler 9 and the top wine vapour pipeline communication of described rectifying tower 15, the hot junction outlet of described combined column reboiler 9 is communicated with the hot-side inlet of described recovery tower reboiler 22, the hot junction outlet of described recovery tower reboiler 22 is communicated with the hot-side inlet of described water wash column reboiler 13, the hot junction outlet of described water wash column reboiler 13 is communicated with the overhead reflux mouth of pipe of described rectifying tower 15, the hot-side inlet of described methanol column reboiler 17 and the top wine vapour pipeline communication of water wash column 12, the hot junction outlet of described methanol column reboiler 17 is communicated with the overhead reflux mouth of pipe of water wash column 12, the hot junction liquid-phase outlet of described combined column reboiler 9, the hot junction liquid-phase outlet of recovery tower reboiler 22 and the hot junction outlet of described water wash column reboiler 13 are all communicated with the overhead reflux mouth of pipe of described rectifying tower 15.Industrial spirit pipeline 27 is also communicated with between the hot junction outlet of described topping still reboiler 5 and the overhead reflux inlet duct of combined column 8.Assorted wine pipeline 28 is also communicated with, for being communicated to described assorted wine tank 19 between the hot junction outlet of described methanol column reboiler 17 and the overhead reflux inlet duct of water wash column 12.
Further, described topping still 4 top is provided with de-gassing vessel and the side take-off device for the ripe mash of extraction, and described mash primary heater unit has mash level Four preheater 7, and described mash level Four preheater 7 has cold side outlet and cold-side inlet;
The outlet conduit of described side take-off device is communicated with successively with the cold-side inlet of described mash level Four preheater 7, the cold side outlet of mash level Four preheater 7 and combined column 8.
Further, also comprise assorted wine tank 19, assorted wine preheater 20, the bottom of described topping still 4, combined column 8, water wash column 12, methanol column 16 and recovery tower 21 all has outlet at bottom pipeline, the hot-side inlet of described mash three grades of preheaters 3 and the outlet at bottom pipeline communication of topping still 4, the outlet at bottom pipeline of described combined column 8 and the hot-side inlet of described mash level Four preheater 7, the hot junction outlet of mash level Four preheater 7 is communicated with the bottom of described topping still 4;
Described assorted wine tank 19, assorted wine preheater 20 successively serial communication between described combined column 8, recovery tower 21, the outlet at bottom pipeline of described recovery tower 21 is also communicated in described assorted wine preheater 20, and described assorted wine preheater 20 also has the outer discharge pipe 30 arranged for waste water outward;
The middle part of described rectifying tower 15, water wash column 12 mouth of pipe that refluxes also is connected to the recovery of described assorted wine tank 19 for assorted wine.
Further, also comprise topping still condenser 6, thick wine tank 10, crude wine preheater 11, light wine preheater 14 and methanol column condenser 18, described topping still condenser 6, thick wine tank 10 and crude wine preheater 11 are series between the hot junction outlet of described mash one-level preheater 1 and water wash column 12 successively;
Described mash one-level preheater 1 is also communicated in described thick wine tank 10, and the top of described recovery tower 21 is also communicated in described thick wine tank 10, and described molecular sieve 25 also has for outer row's light wine to the outlet of described thick wine tank 10;
The outlet at bottom pipeline of described rectifying tower 15 is also communicated in described crude wine preheater 11, and described crude wine preheater 11 is also communicated in the top of described water wash column 12; The middle part of described rectifying tower 15 has assorted wine pipeline 28, is communicated in described assorted wine tank 19, and the bottom of described rectifying tower 15 has steam-pipe 33 for passing into steam.
Described light wine preheater 14 serial communication is between the outlet at bottom pipeline and described crude wine preheater 11 of described rectifying tower 15, described light wine preheater 14 goes back serial communication between the outlet at bottom pipeline and described rectifying tower 15 of described water wash column 12, and described light wine preheater 14 also has the outer relief outlet of waste water;
Described methanol column condenser 18 circulation is connected to the top of described methanol column 16, described methanol column condenser 18 also has the outer relief outlet of industrial spirit, and the pipeline also namely entering the top of methanol column 16 from methanol column condenser 18 is also communicated with industrial spirit pipeline for taking industrial spirit.
Further, also comprise potato spirit separator 24 and potato spirit condenser 23, described potato spirit separator 24, potato spirit condenser 23 successively series circulation are connected to described recovery tower, and described potato spirit separator 24 has for the outer relief outlet of potato spirit of outer row's potato spirit and the dilution water inlet for injecting dilution water;
Also comprise regeneration fume superheater 26, regeneration fume superheater 26 has fume entrance and fume outlet, and described regeneration fume superheater 26 also has steam-in and condensation-water drain;
The bottom parallel communication of two described molecular sieves 25 is in the gas-phase alcohol vapour extraction mouth of described combined column 5, the top parallel communication of two described molecular sieves 25 is in the described fume entrance of regeneration fume superheater 26 and the extraction mouth of pipe of alcohol fuel finished product, the fume outlet of described regeneration fume superheater 26 is communicated in the top of two described molecular sieves 25 respectively, and the bottom of two described molecular sieves 25 is also communicated in described thick wine tank 10.
Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and the fuel alcohol plants that the utility model relates to, changeable coproduction high grade edible spirit and ordinary alcohol.When switching coproduction high grade edible spirit and ordinary alcohol, combined column tower top wine vapour does not go molecular sieve to produce alcohol fuel, the mutually general level edible ethanol of a few laminate Produced Liquid from described combined column reflux layer, as general level finished product alcohol after cooling.
The seven tower multiple-effect differential distillation technology coproduction top grade alcohol that the utility model relates to and the Energy Coupling mode of fuel alcohol plant are: topping still is negative-pressure operation, and combined column is normal pressure or micro-pressure operation, water wash column is normal pressure or micro-pressure operation, rectifying tower are pressurized operation, methanol column is negative-pressure operation, recovery tower is atmospheric operation.Rectifying tower provides thermal load by the primary steam from boiler; The alcohol steam of rectifying tower tower top is successively by combined column reboiler, recovery tower reboiler, water wash column reboiler indirect heating combined column, recovery tower, water wash column; Combined column wine vapour is by topping still reboiler indirect heating topping still; Water wash column wine vapour is by methanol column reboiler indirect heating methanol column; Topping still top wine vapour, recovery tower top wine vapour, the topping still mash that gives up carries out one-level, secondary, three grades of preheatings to ripe wine with dregs, combined column gives up wine with dregs by mash level Four preheater preheats combined column charging mash, go topping still tower reactor after cooling, useless wine with dregs unification discharges wastewater treatment working section from topping still tower reactor; Rectifying tower waste water by the charging of light wine preheater preheats rectifying tower light wine, as water wash column bath water after cooling, remainder as other workshops process water or arrange outward.
The seven tower multiple-effect differential distillation technology coproduction top grade alcohol that the utility model relates to and the advantage of fuel alcohol plant and effect are: this device can produce high grade edible spirit and alcohol fuel simultaneously, and changeable production high grade edible spirit and general level edible ethanol, can according to the Productivity Allocation of market demand flexible high grade edible spirit, alcohol fuel and general level edible ethanol.The production technique of this device adopts differential pressure multiple-effect thermal coupling mode, and steam consumption is reduced to 1.6 ~ 1.8 tons of/ton of finished product alcohol, when independently producing than high grade edible spirit and alcohol fuel energy-conservation 25 ~ 40%.And facility investment when independently producing than high grade edible spirit and alcohol fuel greatly reduces.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (10)

1. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants, is characterized in that, comprise topping still, combined column, water wash column, rectifying tower, methanol column, molecular sieve device and mash primary heater unit;
Described mash primary heater unit, topping still, combined column are communicated with successively, and described rectifying tower, water wash column, methanol column are communicated with successively, and described mash primary heater unit is also communicated in described water wash column;
Described combined column has gas-phase alcohol vapour extraction mouth and is communicated in described molecular sieve device, and the top of described molecular sieve device has anhydrous product outlet, and described methanol column has the outlet of top grade alcohol.
2. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 1, it is characterized in that, described mash primary heater unit has mash one-level preheater, mash secondary preheater and mash three grades of preheaters, and described mash one-level preheater, mash secondary preheater and mash three grades of preheaters all have cold-side inlet, cold side outlet, hot-side inlet and hot junction outlet;
The cold-side inlet of the cold-side inlet of the cold-side inlet of ripe wine with dregs feed pipe, mash one-level preheater, the cold side outlet of mash one-level preheater, mash secondary preheater, the cold side outlet of mash secondary preheater, mash three grades of preheaters, the cold side outlet of mash three grades of preheaters and the top entry pipeline of topping still are communicated with successively;
The hot-side inlet of described mash one-level preheater also with the top wine vapour pipeline communication of topping still, the hot junction outlet of mash one-level preheater is communicated with water wash column, the hot-side inlet of described mash three grades of preheaters is communicated with the bottom of topping still, and the hot junction outlet of described mash three grades of preheaters has wastewater treatment equipment.
3. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 2, it is characterized in that, also comprise recovery tower, described combined column is communicated in described recovery tower, and described recovery tower is also communicated in described water wash column;
The hot-side inlet of described mash secondary preheater and the top wine vapour pipeline communication of recovery tower, the hot junction outlet of described mash secondary preheater is communicated in the overhead reflux mouth of pipe of industrial spirit discharge tube and recovery tower respectively.
4. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 3, it is characterized in that, described topping still, combined column, water wash column, circulate topping still reboiler respectively that be connected with for providing heat in the bottom of methanol column and recovery tower, combined column reboiler, water wash column reboiler, methanol column reboiler and recovery tower reboiler, described topping still reboiler, combined column reboiler, water wash column reboiler, methanol column reboiler and recovery tower reboiler all have hot-side inlet and hot junction outlet, described combined column reboiler and recovery tower reboiler also all have hot junction liquid-phase outlet,
The hot-side inlet of described topping still reboiler and the top wine vapour pipeline communication of described combined column, the hot junction outlet of described topping still reboiler is communicated with the overhead reflux mouth of pipe of described combined column, the hot-side inlet of described combined column reboiler and the top wine vapour pipeline communication of described rectifying tower, the hot junction outlet of described combined column reboiler is communicated with the hot-side inlet of described recovery tower reboiler, the hot junction outlet of described recovery tower reboiler is communicated with the hot-side inlet of described water wash column reboiler, the hot-side inlet of described methanol column reboiler and the top wine vapour pipeline communication of water wash column, the hot junction outlet of described methanol column reboiler is communicated with the overhead reflux mouth of pipe of water wash column, the hot junction liquid-phase outlet of described combined column reboiler, the hot junction liquid-phase outlet of recovery tower reboiler and the hot junction outlet of described water wash column reboiler are all communicated with the overhead reflux mouth of pipe of described rectifying tower.
5. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 2, it is characterized in that, described topping still top is provided with de-gassing vessel and the side take-off device for the ripe mash of extraction, described mash primary heater unit has mash level Four preheater, and described mash level Four preheater has cold side outlet and cold-side inlet;
The outlet conduit of described side take-off device, the cold-side inlet of described mash level Four preheater, the cold side outlet of mash level Four preheater and combined column are communicated with successively.
6. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 5, it is characterized in that, also comprise assorted wine tank, assorted wine preheater, the bottom of described topping still, combined column, water wash column, methanol column and recovery tower all has outlet at bottom pipeline;
The hot-side inlet of described mash three grades of preheaters and the outlet at bottom pipeline communication of topping still, the outlet at bottom pipeline of described combined column is communicated with the hot-side inlet of described mash level Four preheater, and the hot junction outlet of described mash level Four preheater is communicated with the bottom of described topping still;
Described assorted wine tank, serial communication is between described combined column, recovery tower successively for assorted wine preheater, and the outlet at bottom pipeline of described recovery tower is also communicated in described assorted wine preheater, and described assorted wine preheater also has the outer relief outlet arranged for waste water outward;
Middle part, the water wash column backflow mouth of pipe of described rectifying tower are also connected to the recovery of described assorted wine tank for assorted wine.
7. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 6, it is characterized in that, also comprise topping still condenser, thick wine tank, crude wine preheater, light wine preheater and methanol column condenser, described topping still condenser, thick wine tank and crude wine preheater are series between the hot junction outlet of described mash one-level preheater and water wash column successively;
Described mash one-level preheater is also communicated in described thick wine tank, and the top of described recovery tower is also communicated in described thick wine tank, and described molecular sieve device also has for outer row's light wine to the outlet of described thick wine tank;
The outlet at bottom pipeline of described rectifying tower is also communicated in described crude wine preheater, and described crude wine preheater is also communicated in the top of described water wash column;
Described light wine preheater serial communication is between the outlet at bottom pipeline and described crude wine preheater of described rectifying tower, also serial communication is between the outlet at bottom pipeline and described rectifying tower of described water wash column for described light wine preheater, and described light wine preheater also has the outer relief outlet of waste water;
Described methanol column condenser circulation is connected to the top of described methanol column, and described methanol column condenser also has the outer relief outlet of industrial spirit.
8. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 3, it is characterized in that, also comprise potato spirit separator and potato spirit condenser, described potato spirit condenser, potato spirit separator series circulation are connected to described recovery tower, and described potato spirit separator has for the outer relief outlet of potato spirit of outer row's potato spirit and the dilution water inlet for injecting dilution water.
9. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 1-8 any one, it is characterized in that, also comprise regeneration fume superheater, regeneration fume superheater has fume entrance and fume outlet, described regeneration fume superheater also has steam-in and condensation-water drain, and described molecular sieve device has two molecular sieves;
The bottom parallel communication of two described molecular sieves is in the gas-phase alcohol vapour extraction mouth of described combined column, the top parallel communication of two described molecular sieves is in the fume entrance of described regeneration fume superheater and the alcohol fuel finished product extraction mouth of pipe, the fume outlet of described regeneration fume superheater is communicated in the top of two described molecular sieves respectively, and the bottom of two described molecular sieves is also communicated in described thick wine tank.
10. seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants according to claim 1-8 any one, it is characterized in that, described combined column also has ordinary alcohol extraction mouth, and described rectifying tower also has steam-in.
CN201420807044.0U 2014-12-17 2014-12-17 Seven tower multiple-effect differential distillation technology coproduction top grade alcohol and fuel alcohol plants CN204310984U (en)

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* Cited by examiner, † Cited by third party
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CN106422388A (en) * 2016-10-26 2017-02-22 广东中科天元新能源科技有限公司 Differential pressure distillation energy-saving device for producing high-quality alcohol through double crude distillation towers and production technology of high-quality alcohol
CN106495989A (en) * 2016-09-27 2017-03-15 广西罗城科潮基业科技发展有限公司 A kind of alcohol of energy-conservation slightly evaporates equipment and its slightly evaporates method
CN106495988A (en) * 2016-09-27 2017-03-15 广西罗城科潮基业科技发展有限公司 A kind of processing method of top grade alcohol absolute alcohol
CN106636223A (en) * 2016-09-27 2017-05-10 广西罗城科潮基业科技发展有限公司 Processing method for utilizing cassava residue and cassava to produce alcohol

Cited By (7)

* Cited by examiner, † Cited by third party
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CN106636223B (en) * 2016-09-27 2020-08-14 台州中知英健机械自动化有限公司 Processing method for producing alcohol by using cassava residues and cassava
CN106495989A (en) * 2016-09-27 2017-03-15 广西罗城科潮基业科技发展有限公司 A kind of alcohol of energy-conservation slightly evaporates equipment and its slightly evaporates method
CN106495988A (en) * 2016-09-27 2017-03-15 广西罗城科潮基业科技发展有限公司 A kind of processing method of top grade alcohol absolute alcohol
CN106636223A (en) * 2016-09-27 2017-05-10 广西罗城科潮基业科技发展有限公司 Processing method for utilizing cassava residue and cassava to produce alcohol
CN106495988B (en) * 2016-09-27 2019-06-18 广西罗城科潮基业科技发展有限公司 A kind of processing method of top grade alcohol absolute alcohol
CN106422388B (en) * 2016-10-26 2019-02-19 广东中科天元新能源科技有限公司 The differential distillation energy saver and its production technology of double thick tower production top grade alcohol
CN106422388A (en) * 2016-10-26 2017-02-22 广东中科天元新能源科技有限公司 Differential pressure distillation energy-saving device for producing high-quality alcohol through double crude distillation towers and production technology of high-quality alcohol

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