CN109489345B - Air flow drying system for distillers' grains protein feed production - Google Patents

Air flow drying system for distillers' grains protein feed production Download PDF

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Publication number
CN109489345B
CN109489345B CN201811599283.0A CN201811599283A CN109489345B CN 109489345 B CN109489345 B CN 109489345B CN 201811599283 A CN201811599283 A CN 201811599283A CN 109489345 B CN109489345 B CN 109489345B
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air
heat exchanger
communicated
water
outlet
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CN109489345A (en
Inventor
孙发喜
孙帅强
李世航
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Zhengzhou Boda Concentrated Drying Equipment Co ltd
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Zhengzhou Boda Concentrated Drying Equipment Co ltd
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Priority to CN201811599283.0A priority Critical patent/CN109489345B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • F26B25/003Handling, e.g. loading or unloading arrangements for articles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005Treatment of dryer exhaust gases
    • F26B25/007Dust filtering; Exhaust dust filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00Cleaning by flushing or washing, e.g. with chemical solvents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/02Biomass, e.g. waste vegetative matter, straw

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Drying Of Solid Materials (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention relates to an air flow drying system for producing vinasse protein feed, wherein a discharge port of a drying discharger is connected with a feed port of a circulating conveyor, a discharge port of the circulating conveyor is connected with a feed port of a feeder, a discharge port of the circulating conveyor is communicated with a crushing and packaging system, an air outlet of the drying discharger is communicated with an air inlet of a draught fan, an air outlet of the draught fan is communicated with a hot air inlet of a cold air heat exchanger, a hot air outlet of the cold air heat exchanger is communicated with an air inlet of an ice water heat exchanger, a discharge port of the ice water heat exchanger is communicated with a feed port of a gas-liquid separator, an air outlet of the gas-liquid separator is communicated with a cold air inlet of the cold air heat exchanger, a liquid outlet of the gas-liquid separator is communicated with a condensation recovery tank, a cold air outlet of the cold air heat exchanger is communicated with a blower, and the blower is communicated with a discharge port of the feeder.

Description

Air flow drying system for distillers' grains protein feed production
Technical Field
The invention relates to the technical field of equipment for conveying and cooling powder and granular loose materials such as vinasse protein feed, in particular to an air flow drying system for producing the vinasse protein feed.
Background
In the alcohol production process, after alcohol is distilled from fermented mash, a distillers 'grains liquid rich in protein is left, the distillers' grains liquid is separated into two parts of filter residue and filtrate after solid-liquid separation, wherein the filter residue is distillers 'grains, the distillers' grains can be used for producing whole distillers 'grains dried feed after being dried by a tube bundle dryer, the filtrate is also sent to a dryer for drying after being evaporated and concentrated, and the dried product can be also used for producing whole distillers' dried feed. At present, a tube bundle dryer is generally adopted for drying filter residues, the tube bundle dryer takes high-temperature steam as a heat source, the high-temperature steam enters a heat exchange tube bundle of the tube bundle dryer and is subjected to heat exchange with materials in a shell of the tube bundle dryer, the materials are dried, the high-temperature steam is cooled and condensed, in the process, the tube bundle of the tube bundle dryer continuously rotates to carry the materials to the high position of the tube bundle dryer and then freely falls between the tube bundles of the tube bundle dryer for heat exchange, the tube bundle dryer is generally large in size and long in length, the power required by rotation of the tube bundle is large, and in addition, the heat exchange tubes forming the tube bundle are long in general length, in order to ensure the heat exchange efficiency, the wall thickness of the heat exchange tubes is thin and are easy to sag and deform for long time, so that the heat exchange tubes are easy to wear and break, the tube bundle dryer has high running cost, high equipment investment and short service life and seriously influences the production efficiency of protein feed.
Disclosure of Invention
In summary, in order to overcome the defects of the prior art, the invention provides an air flow drying system for producing vinasse protein feed, which is used for conveying wet materials by air carried by high-temperature drying air in an air-assisted manner, and the high-temperature drying air absorbs water in the materials in the conveying process so as to achieve the purpose of drying the materials.
In order to solve the technical problems, the invention adopts the following technical scheme:
an air flow drying system for producing vinasse protein feed, wherein: the device comprises a feeder, a dry discharger, a circulating conveyor, an induced draught fan, a cold air heat exchanger, an ice water heat exchanger, a gas-liquid separator, a condensation recovery tank, a blower, a heater and a crushing packaging system, wherein the feed port of the feeder is communicated with a wet material source, the discharge port of the feeder is connected with the feed port of the dry discharger, the discharge port of the dry discharger is connected with the feed port of the circulating conveyor, the discharge port of the circulating conveyor is connected with the feed port of the feeder, the discharge port of the circulating conveyor is communicated with the crushing packaging system, the air outlet of the dry discharger is communicated with the air inlet of the induced draught fan, the air outlet of the induced draught fan is communicated with the hot air inlet of the cold air heat exchanger, the hot air outlet of the cold air heat exchanger is communicated with the air inlet of the ice water heat exchanger, the discharge port of the ice water heat exchanger is communicated with the feed port of the gas-liquid separator, the air outlet of the gas separator is communicated with the cold air inlet of the cold air heat exchanger, the liquid outlet of the air separator is communicated with the liquid inlet of the condensation recovery tank, the outlet of the cold air heat exchanger is communicated with the air inlet of the cooling water inlet of the cooling heat exchanger, the cooling water inlet of the cooling heat exchanger is communicated with the cooling water inlet of the cooling heat exchanger, and the cooling water outlet of the cooling heat exchanger is communicated with the cooling water inlet of the cooling heat exchanger.
The technical scheme of the invention can be realized by that the crushing and packaging system comprises a crusher, a wind-driven discharger, a wind-driven deduster, a wind-driven blower, a finished product screen, a storage bin and a packaging machine, wherein the feed inlet of the crusher is communicated with the discharge port of the circulating conveyor, the discharge port of the crusher is communicated with the feed inlet of the wind-driven discharger through a wind-driven pipeline, the air outlet of the wind-driven discharger is communicated with the air inlet of the wind-driven discharger, the air outlet of the wind-driven discharger is communicated with the air inlet of the wind-driven blower, the air outlets of the wind-driven discharger and the wind-driven deduster are both communicated with the feed inlet of the finished product screen, the discharge port of the finished product screen is communicated with the feed inlet of the storage bin, and the discharge port of the storage bin is connected with the packaging machine.
The technical scheme of the invention can be realized by that the ice water heat exchanger and the cold air heat exchanger are connected with a cleaning system, the cleaning system comprises a cleaning water tank and a cleaning water pump, a water outlet of the cleaning water tank is communicated with a water inlet of the cleaning water pump, a water outlet of the cleaning water pump is respectively communicated with a discharge port of the ice water heat exchanger, a cleaning port of the cold air heat exchanger and a condensed water outlet of the cold air heat exchanger through a first cleaning pipeline, a second cleaning pipeline and a third cleaning pipeline, a first cleaning valve, a second cleaning valve and a third cleaning valve are respectively arranged on the first cleaning pipeline, the second cleaning pipeline and the third cleaning pipeline, an air inlet of the ice water heat exchanger is communicated with a water return header pipe through a first water return pipeline, an air outlet of the cold air heat exchanger is communicated with the water return header pipe through a second water return pipeline, a cleaning water outlet of the cold air heat exchanger is communicated with the water return header pipe through a third water return pipeline, and a first water return valve, a second water return valve and a third water return valve are respectively arranged on the first water return pipeline, the second water return pipeline and the third water return pipeline.
The technical scheme of the invention can also be realized in such a way that a drain valve is arranged on a pipeline which is communicated with the condensate outlet of the cold air heat exchanger and the liquid inlet of the condensate recovery tank, and the drain valve is arranged on a pipeline between the liquid inlet of the condensate recovery tank and the third cleaning pipeline.
The technical scheme of the invention can also be realized in such a way that a discharge valve is arranged on a pipeline of the liquid outlet of the ice water heat exchanger communicated with the feed inlet of the gas-liquid separator.
The technical scheme of the invention can also be realized in such a way that the drying discharger is a cyclone discharger, and a discharge hole of the drying discharger is provided with a wind blocking device.
The technical scheme of the invention can also be realized in such a way that the air delivery discharger and the air delivery dust remover are both cyclone discharger, and the discharge ports of the air delivery discharger and the air delivery dust remover are both provided with air shutters.
The beneficial effects of the invention are as follows:
1. the invention is to carry the wet material to send and convey through the air of the high temperature drying, the air of high temperature drying absorbs the moisture in the material in the course of conveying, achieve the goal of drying the material, compared with existing tube bundle drier, the invention is to the air after heating of the dry heat source of the wet material, compared with the high-temperature steam of the tube bundle drier, the high-temperature air is easier to make, the energy consumption is little, and the invention adopts the apparatus only as tube type heat exchanger and cyclone discharger, the apparatus is simple, the manufacturing cost is low, the invention adopts the air supply to convey, the conveying efficiency is high and can raise the drying efficiency effectively, therefore, the invention can solve the problem that the apparatus input is high, the drying efficiency is low, the drying cost is high, etc. when the vinasse material dries in the existing vinasse protein feed production effectively.
2. The invention sets up cold air heat exchanger and ice water heat exchanger, the air of high temperature drying will carry away some dust materials except taking away the moisture in the wet material in the course of air-sending, and there is alcohol in the moisture, the air temperature of high temperature drying is reduced, the humidity is increased, and contain the supplies, therefore, the air after drying is difficult to discharge, the invention makes the air after participating in drying cool condensing through the cold air heat exchanger, make the air become dry again, and the dust materials in the air are condensed and recycled in the course of condensing, then the air enters the ice water heat exchanger, the air is cooled by further condensation, the air becomes the cold air, the cold air participates in the heat exchange in the cold air heat exchanger, the cold air participates in the drying of the wet material after heating up in the heater, there is no gas emission in the whole course, the air is recycled, energy conservation and emission reduction.
3. The invention is provided with the cleaning system, the cleaning system can circularly clean the cold air heat exchanger 5 and the ice water heat exchanger 6, after the wet materials are dried by the high-temperature dried air, the dust materials carried in the air can be adhered in the shell and the heat exchange tube of the heat exchanger in the air condensation heat exchange process after entering the heat exchanger, the heat exchange efficiency effect and the stable operation of equipment are affected, and the cleaning system can clean the heat exchanger, clean the adhered materials and ensure the heat exchange efficiency, the heat exchange effect and the stable operation of the equipment.
4. According to the invention, the crushing and packaging system is arranged, the dried materials enter the crusher to be crushed and enter the air-conveying discharger to collect materials, the air-conveying dust remover to remove dust and collect materials is used for fully and thoroughly recycling the materials, meanwhile, the air-conveying system can perform air-conveying cooling on the dried and warmed materials in the material conveying process, the material temperature is reduced, the problem that the materials are bonded into blocks due to evaporation of water in the material drying process can be effectively solved by the arrangement of the crusher, the subsequent air-conveying cooling and material recycling are facilitated, and the granularity of the materials meets the feed production requirement.
5. The condensing recovery tank conveys the recovered condensed water to the mash distillation tower again through the condensing recovery pump, and the condensed water contains dust materials, so that the dust materials can be recycled.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Description of the embodiments
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, an air flow drying system for producing vinasse protein feed comprises a feeder 1, a drying discharger 2, a circulating conveyor 3, a draught fan 4, a cold air heat exchanger 5, an ice water heat exchanger 6, a gas-liquid separator 7, a condensation recovery tank 8, a blower 9, a heater 10 and a crushing packaging system, wherein a feed port of the feeder 1 is communicated with a wet material source 11, a discharge port of the feeder 1 is connected with a feed port of the drying discharger 2, a discharge port of the drying discharger 2 is connected with a feed port of the circulating conveyor 3, the drying discharger 2 is a cyclone discharger, a discharge port of the drying discharger is provided with a wind blocking device, a discharge port of the circulating conveyor 3 is connected with a feed port of the feeder 1, a discharge port of the circulating conveyor 3 is communicated with a crushing packaging system, the crushing packaging system comprises a crusher 14, a wind discharge hopper 15, a wind screen 18, a bin 19 and a packaging machine 20, a feed port of the crusher 14 is communicated with a discharge port of the circulating conveyor 3, a discharge port of the crusher 14 is communicated with a discharge port of the wind screen 15 through a wind screen 15, and a discharge port of the wind screen 16 is communicated with a discharge port of the wind screen 16.
The gas outlet of dry tripper 2 communicates the air inlet of draught fan 4, the gas outlet of draught fan 4 communicates the steam inlet of cold air heat exchanger 5, the steam outlet of cold air heat exchanger 5 communicate the air inlet of ice water heat exchanger 6, the discharge gate of ice water heat exchanger 6 communicates the feed inlet of gas-liquid separator 7, be provided with bleeder valve 37 on the pipeline of the feed inlet intercommunication of ice water heat exchanger 6 and gas-liquid separator 7, the gas outlet of gas-liquid separator 7 communicate the cold wind import of cold air heat exchanger 5, the liquid outlet of gas-liquid separator 7 communicate the inlet of condensation recovery jar 8, the cold wind export of cold air heat exchanger 5 communicate the air inlet of air-blower 9, the gas outlet of air-blower 9 communicates the air inlet of heater 10, the gas outlet of heater 10 communicates the discharge gate of feeder 1, the condensate outlet of cold air heat exchanger 5 communicate the inlet of condensation recovery jar 8, the liquid outlet of condensation recovery jar 8 communicate the mash distillation column through condensation recovery pump 12, the ice water inlet and the outlet of ice water heat exchanger 6 communicate the water outlet and water return port of water source respectively. The air delivery discharger 15 and the air delivery dust remover 16 are cyclone discharger, and the discharge ports of the air delivery discharger 15 and the air delivery dust remover 16 are provided with air closers.
The water cooling system is characterized in that the ice water heat exchanger 6 and the cold air heat exchanger 5 are connected with a cleaning system, the cleaning system comprises a cleaning water tank 21 and a cleaning water pump 22, a water outlet of the cleaning water tank 21 is communicated with a water inlet of the cleaning water pump 22, a water outlet of the cleaning water pump 22 is communicated with a discharge port of the ice water heat exchanger 6, a cleaning port of the cold air heat exchanger 5 and a condensate outlet of the cold air heat exchanger 5 through a first cleaning pipeline 23, a second cleaning pipeline 24 and a third cleaning pipeline 25, a first cleaning valve 26, a second cleaning valve 27 and a third cleaning valve 28 are respectively arranged on the first cleaning pipeline 23, the second cleaning pipeline 24 and the third cleaning pipeline 25, an air inlet of the ice water heat exchanger 6 is communicated with a water return header 30 through a first water return pipeline 29, a water outlet of the cold air heat exchanger 5 is communicated with the water return header 30 through a second water return pipeline 31, a cleaning water outlet of the cold air heat exchanger 5 is communicated with the water return header 30 through a third water return pipeline 32, and a first water return valve 33, a second water return valve 34 and a third water return valve 21 are respectively arranged on the first water return pipeline 29 and the second return pipeline 31 and the third water return pipeline 32.
The condensed water outlet of the cold air heat exchanger 5 is provided with a liquid discharge valve 36 on a pipeline communicated with the liquid inlet of the condensation recovery tank 8, and the liquid discharge valve 36 is arranged on a pipeline between the liquid inlet of the condensation recovery tank 8 and the third cleaning pipeline 25.
When the feeder is used, vinasse enters the feeder 1, the induced draft fan 4 and the blower 9 are started, the dried air enters the heater 10 to be heated into high-temperature dried air under the action of the blower 9, the high-temperature dried air carries out pneumatic conveying on vinasse wet materials provided by the feeder 1 under the action of the induced draft fan 4, the wet materials are dried in the pneumatic conveying process and enter the drying discharger 2, the dried materials enter the circulating conveyor 3 from a discharge hole of the drying discharger 2, a part of the dried materials are conveyed to the feeder 1 and wet materials again by the circulating conveyor 3, the wet materials are primarily dried, the other part of the dried materials enter the pulverizer 14 to be crushed and then are conveyed to the pneumatic conveying discharger 15 by air to be collected by the materials, the materials are cooled in the pneumatic conveying process, the pneumatic conveying air enters the pneumatic conveying dust remover 16 to be discharged after dust removal, and the collected dry materials enter the storage bin 19 after being screened by the product screen 18, and then the storage bin 19 is packaged. The high-temperature dry air entering the dry discharger 2 absorbs moisture in wet materials and carries part of dust materials, flows out from an air outlet of the dry discharger 2, enters the cold air heat exchanger 5 under the action of the induced draft fan 4, exchanges heat with the cold air entering the cold air heat exchanger 5, the cold air heat exchanger 5 is a tube array heat exchanger, the hot air flowing out of the dry discharger 2 enters a heat exchange tube of the tube array heat exchanger, tube passes flow, the cold air enters a shell of the tube array heat exchanger, and shell passes flow. After heat exchange of hot air and cold air, the hot air flows out from an air outlet at the upper end of the cold air heat exchanger 5 after cooling and condensing, and enters the ice water heat exchanger 6, the ice water heat exchanger 6 is also a tube-in-tube heat exchanger, ice water enters a heat exchange tube of the tube-in-tube heat exchanger, tube passes flow, hot air enters a shell of the tube-in-tube heat exchanger, shell passes flow, ice water exchanges heat with air, the hot air is cooled and condensed again to become cold air, the cold air and condensed water enter the gas-liquid separator 7 together for separation, the cold air is conveyed to a cold air inlet of the cold air heat exchanger 5, the shell passes flow, after heat exchange of the cold air and the hot air, the cold air is heated, enters the heater 10 through the blower 9 for heating, and the cold air is taken part in air drying of wet materials of vinasse again.
The condensed water in the cold air heat exchanger 5 and the condensed water separated by the gas-liquid separator 7 enter the condensation recovery tank 8, and because the condensed water contains dust materials and alcohol, the condensed water is conveyed to the mash distillation tower again for alcohol distillation under the action of the condensation recovery pump 12.
When the system is operated for a period of time, the condensed dust materials in the condensation process are adhered in the ice water heat exchanger 6 and the cold air heat exchanger 5, so that the ice water heat exchanger 6 and the cold air heat exchanger 5 need to be cleaned. At this time, the drain valve 36 and the discharge valve 37 are closed, the cleaning water pump 22, the first cleaning valve 26, the second cleaning valve 27, the third cleaning valve 28, the first return valve 33, the second return valve 34 and the third return valve 35 are opened, the cleaning water in the cleaning water tank 21 enters the first cleaning pipeline 23, the second cleaning pipeline 24 and the third cleaning pipeline 25 respectively under the action of the cleaning water pump 22, the cleaning water in the first cleaning pipeline 23 cleans the shell of the ice water heat exchanger 6, namely, shell side cleaning, the cleaning water enters the return water main 30 from the first return pipeline 29, the cleaning water in the second cleaning pipeline 24 cleans the shell of the cold air heat exchanger 5, namely, shell side cleaning, the cleaning water enters the return water main 30 from the third return pipeline 32, the cleaning water in the third cleaning pipeline 25 cleans the heat exchange tubes of the cold air heat exchanger 5, namely, the tube side cleaning water enters the return water main 30 from the second return pipeline 31, and the cleaning water in the return water tank main 30 enters the cleaning water tank 21, so that the cleaning of the ice water heat exchanger 6 and the cold air heat exchanger 5 is completed.
The control valve 38 is arranged on a communicating pipe between the air outlet of the cold air heat exchanger 5 and the air inlet of the ice water heat exchanger 6, the control valve 38 is arranged between the first water return pipeline 29 and the second water return pipeline 31, the control valve 38 is opened when the materials are dried, and the control valve 38 is closed when the heat exchanger is cleaned.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solution of the present invention, and that those skilled in the art may substitute equivalents or other modifications made according to the prior art, without departing from the spirit and scope of the technical solution of the present invention, and are included in the scope of the claims.

Claims (7)

1. An air current drying system for vinasse protein feed production which characterized in that: the device comprises a feeder (1), a drying discharger (2), a circulating conveyor (3), a draught fan (4), a cold air heat exchanger (5), an ice water heat exchanger (6), a gas-liquid separator (7), a condensation recovery tank (8), a blower (9), a heater (10) and a crushing and packaging system, wherein a feed port of the feeder (1) is communicated with a wet material source (11), a discharge port of the feeder (1) is connected with the feed port of the drying discharger (2), a discharge port of the drying discharger (2) is connected with the feed port of the circulating conveyor (3), a discharge port of the circulating conveyor (3) is connected with the feed port of the feeder (1), a discharge port of the circulating conveyor (3) is communicated with the crushing and packaging system, an air outlet of the drying discharger (2) is communicated with an air inlet of the draught fan (4), an air outlet of the draught fan (4) is communicated with a hot air inlet of the cold air heat exchanger (5), a hot air outlet of the cooling air heat exchanger (5) is communicated with an air inlet of the ice water heat exchanger (6), a discharge port of the ice water heat exchanger (6) is communicated with a feed port of the cold air inlet of the cooling air heat exchanger (7), a cold air inlet of the cooling air separator (7) is communicated with the cold air inlet of the cooling air separator (7), cold air outlet intercommunication air-blower (9) of cold air heat exchanger (5) air inlet, the air inlet of air-blower (9) gas outlet intercommunication heater (10), the discharge gate of feeder (1) is linked together to the gas outlet of heater (10), the condensate water outlet intercommunication condensation of cold air heat exchanger (5) retrieve the inlet of jar (8), the liquid outlet of condensation recovery jar (8) pass through condensation recovery pump (12) intercommunication mash distillation column, the frozen water import and the frozen water export of frozen water heat exchanger (6) communicate the delivery port and the return water mouth of ice water source respectively.
2. The air drying system for distillers protein feed production of claim 1, wherein: the crushing and packaging system comprises a crusher (14), a wind conveying discharger (15), a wind conveying dust remover (16), a wind blower (17), a finished product screen (18), a bin (19) and a packaging machine (20), wherein a feed inlet of the crusher (14) is communicated with a discharge outlet of a circulating conveyor (3), a discharge outlet of the crusher (14) is communicated with the feed inlet of the wind conveying discharger (15) through a wind conveying pipeline, an air outlet of the wind conveying discharger (15) is communicated with an air inlet of the wind conveying dust remover (16), an air outlet of the wind conveying dust remover (16) is communicated with an air inlet of the wind blower (17), an air outlet of the wind blower (17) is communicated with the atmosphere, a discharge outlet of the wind conveying discharger (15) and a discharge outlet of the wind conveying dust remover (16) are both communicated with the feed inlet of the finished product screen (18), a discharge outlet of the finished product screen (18) is communicated with the feed inlet of the bin (19), and a discharge outlet of the bin (19) is connected with the packaging machine (20).
3. The air drying system for distillers protein feed production of claim 1, wherein: the water cooling system is characterized in that the ice water heat exchanger (6) and the cold air heat exchanger (5) are connected with a cleaning system, the cleaning system comprises a cleaning water tank (21) and a cleaning water pump (22), a water outlet of the cleaning water tank (21) is communicated with a water inlet of the cleaning water pump (22), a water outlet of the cleaning water pump (22) is communicated with a discharging hole of the ice water heat exchanger (6), a cleaning hole of the cold air heat exchanger (5) and a condensate water outlet of the cold air heat exchanger (5) respectively through a first cleaning pipeline (23), a second cleaning pipeline (24) and a third cleaning pipeline (25), a first cleaning valve (26), a second cleaning valve (27) and a third cleaning valve (28) are respectively arranged on the cleaning water tank, a water inlet of the ice water heat exchanger (6) is communicated with a main pipe (30) through a first return water pipeline (29), a water outlet of the cold air heat exchanger (5) is communicated with a water return pipe (30) through a second return pipeline (31), a water outlet of the cold air heat exchanger (5) is communicated with a water return pipe (30) through a third return pipeline (32) and a water return pipe (32) is respectively arranged on the water return pipe (32) and the water return pipe (33) respectively The second water return valve (34) and the third water return valve (35), and the water return main pipe (30) is communicated with the water return port of the cleaning water tank (21).
4. The air drying system for distillers protein feed production of claim 3, wherein: the condensate water outlet of the cold air heat exchanger (5) is provided with a liquid discharge valve (36) on a pipeline communicated with the liquid inlet of the condensation recovery tank (8), and the liquid discharge valve (36) is arranged on a pipeline between the liquid inlet of the condensation recovery tank (8) and the third cleaning pipeline (25).
5. The air drying system for distillers protein feed production of claim 1, wherein: a discharge valve (37) is arranged on a pipeline which is communicated with the liquid outlet of the ice water heat exchanger (6) and the feed inlet of the gas-liquid separator (7).
6. The air drying system for distillers protein feed production of claim 1, wherein: the drying discharger (2) is a cyclone discharger, and a discharge hole of the drying discharger is provided with an air blocking device.
7. The air drying system for distillers protein feed production of claim 2, wherein: the air delivery discharger (15) and the air delivery dust remover (16) are cyclone discharger, and the discharge ports of the air delivery discharger (15) and the air delivery dust remover (16) are provided with air shutters.
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