CN110657647A - Polyunsaturated fatty acid microcapsule drying system and drying process thereof - Google Patents

Polyunsaturated fatty acid microcapsule drying system and drying process thereof Download PDF

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Publication number
CN110657647A
CN110657647A CN201911009752.3A CN201911009752A CN110657647A CN 110657647 A CN110657647 A CN 110657647A CN 201911009752 A CN201911009752 A CN 201911009752A CN 110657647 A CN110657647 A CN 110657647A
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CN
China
Prior art keywords
nitrogen
connecting pipe
air
air inlet
pipe
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Pending
Application number
CN201911009752.3A
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Chinese (zh)
Inventor
陶进
钱洁
唐禧
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Noah Santo Noah Taicang Biotechnology Co Ltd
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Noah Santo Noah Taicang Biotechnology Co Ltd
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Priority to CN201911009752.3A priority Critical patent/CN110657647A/en
Publication of CN110657647A publication Critical patent/CN110657647A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying 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
    • F26B3/06—Drying 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 flowing through the materials or objects to be dried
    • F26B3/08—Drying 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 flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat

Abstract

The invention discloses a polyunsaturated fatty acid microcapsule drying system and a drying process thereof, and the drying system comprises a powder spraying dryer, a hot blast stove and a fluidized drying bed, wherein a discharge hole of the powder spraying dryer is connected with a feed inlet of the fluidized drying bed, and an air outlet of the hot blast stove is connected with an air inlet of the powder spraying dryer, and the drying system is characterized in that: still include heat exchanger, condenser, dehumidifier and nitrogen and be responsible for, the both ends that nitrogen is responsible for link to each other with the air inlet and the gas outlet of fluidized drying bed respectively, condenser and dehumidifier install in nitrogen is responsible for last, the dehumidifier is close to the air inlet setting of fluidized drying bed, the condenser is close to the gas outlet setting of fluidized drying bed, nitrogen is responsible for and is equipped with the nitrogen gas import, the nitrogen gas import set up in the dehumidifier with between the fluidized drying bed. The drying process comprises the following steps: filling nitrogen into a pipe, refluxing to a heat exchanger for heat exchange, cooling by a condenser, and dehumidifying by a dehumidifier. The invention reduces energy consumption and saves cost.

Description

Polyunsaturated fatty acid microcapsule drying system and drying process thereof
Technical Field
The invention relates to the field of unsaturated fatty acid production and processing, in particular to a polyunsaturated fatty acid microcapsule drying system and a drying process thereof.
Background
In the prior art, when unsaturated fatty acid (such as DNA/EPA grease) is produced and processed, generally, a powder spraying drier and a fluidized drying bed are required to be used for cooling and drying, but the cooling and drying are generally carried out by large-scale equipment, and the cost is particularly high. This is particularly costly if the product is freeze-dried in small batches, for example only a few hundred kg of product per day. In general, a small powder spraying dryer and a fluidized drying bed are adopted for working, nitrogen is filled for protecting products and preventing oxidation, and when the device is in actual use, nitrogen is directly discharged into air after being dried and cooled by the powder spraying dryer and the fluidized drying bed, so that the consumption of the nitrogen is high, and the energy consumption is particularly high.
Disclosure of Invention
The invention aims to provide a polyunsaturated fatty acid microcapsule drying system and a drying process thereof, and by using the system and the drying process, the consumption of nitrogen is reduced, the energy consumption is reduced, and the cost is saved.
In order to achieve the purpose, the invention adopts the technical scheme that: the polyunsaturated fatty acid microcapsule drying system further comprises a powder spraying dryer, a hot blast stove and a fluidized drying bed, wherein a discharge port of the powder spraying dryer is connected with a feed port of the fluidized drying bed, an air outlet of the hot blast stove is connected with an air inlet of the powder spraying dryer, the system comprises a heat exchanger, a condenser, a dehumidifier and a nitrogen main pipe, one end of the nitrogen main pipe is connected with the air inlet of the fluidized drying bed, the other end of the nitrogen main pipe is connected with an air outlet of the fluidized drying bed, the condenser and the dehumidifier are arranged on the nitrogen main pipe, the dehumidifier is arranged close to the air inlet of the fluidized drying bed, the condenser is arranged close to the air outlet of the fluidized drying bed, a nitrogen inlet is arranged on the nitrogen main pipe, and the nitrogen inlet is arranged between the dehumidifier and the fluidized drying bed;
the heat exchanger is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet is communicated with the first air outlet, and the second air inlet is communicated with the second air outlet;
the first air inlet is connected with the nitrogen main pipe through a first connecting pipe, the end part of the first connecting pipe is arranged on the nitrogen main pipe between the nitrogen inlet and the air inlet of the fluidized drying bed, and the first air outlet is connected with the air inlet of the hot blast stove through a second connecting pipe;
the second air inlet is connected with the air outlet of the powder spraying dryer through a third connecting pipe, the second air outlet is connected with the nitrogen main pipe through a fourth connecting pipe, and the end part of the fourth connecting pipe is arranged on the nitrogen main pipe between the condenser and the air outlet of the fluidized drying bed.
In the above technical scheme, a third dust remover is arranged on the third connecting pipe; and a first dust remover is arranged on the nitrogen main pipe, and the first dust remover is arranged on the nitrogen main pipe between the condenser and the gas outlet of the fluidized drying bed.
In the technical scheme, the fluidized drying bed is further provided with an air supplementing pipe, an air inlet of the air supplementing pipe is connected with the nitrogen main pipe, an air outlet of the air supplementing pipe is connected with the second connecting pipe, and an air inlet of the air supplementing pipe is arranged on the nitrogen main pipe between the air inlet of the first connecting pipe and the air inlet of the fluidized drying bed.
In the above technical scheme, the air supplement pipe is provided with an electromagnetic valve, and the second connecting pipe is provided with a barometer.
In order to achieve the aim, the invention adopts a drying process of a polyunsaturated fatty acid microcapsule drying system, which comprises the following steps:
filling nitrogen into a nitrogen main pipe from a nitrogen inlet, and filling the whole system with nitrogen;
secondly, the product enters a powder spraying dryer from a feed inlet of the powder spraying dryer for primary drying, and is cooled and dried by a fluidized drying bed;
thirdly, low-temperature nitrogen in the nitrogen main pipe enters a heat exchanger for heat exchange through a first connecting pipe, is conveyed into a hot air furnace from a second connecting pipe, is heated into high-temperature nitrogen through the hot air furnace, and enters a powder spraying dryer for drying products; meanwhile, low-temperature nitrogen in the nitrogen main pipe enters the fluidized drying bed to cool and dry the product, and the nitrogen heated by the fluidized drying bed flows back to the air inlet of the condenser;
fourthly, the hot air after passing through the powder spraying dryer enters the heat exchanger through a third connecting pipe, exchanges heat with the low-temperature nitrogen entering the heat exchanger in the third step, reduces the temperature, and then flows back into the nitrogen main pipe at the front end of the condenser through a fourth connecting pipe;
cooling the high-temperature nitrogen in the nitrogen main pipe in the condenser step III and the condenser step IV, removing moisture in the nitrogen through a dehumidifier, refluxing the nitrogen into the nitrogen main pipe at the nitrogen inlet, and repeating the steps I to circulate the powder spraying dryer;
in the above technical scheme, in the fourth step, after the high-temperature nitrogen enters the powder spraying dryer to dry the product, the nitrogen entering the third connecting pipe carries some dust, and the dust is removed by the third dust remover on the third connecting pipe; and in the second step, the nitrogen with dust sent out from the air outlet of the fluidized drying bed is dedusted by a first deduster.
In the technical scheme, when the pressure gauge detects that the pressure of the second connecting pipe is reduced, the electromagnetic valve is opened, and nitrogen on the nitrogen main pipe is supplemented into the second connecting pipe.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the nitrogen main pipe is adopted to connect the air inlet and the air outlet of the fluidized drying bed, the condenser and the dehumidifier are arranged on the nitrogen main pipe, the heat exchanger is arranged to carry out heat exchange and cooling on high-temperature nitrogen passing through the powder spraying dryer and low-temperature nitrogen before entering the powder spraying dryer, then the temperature is reduced through the condenser, and the dehumidifier removes moisture contained in a pipeline, so that the nitrogen can be recycled, the use of the nitrogen is reduced, and meanwhile, the use of the heat exchanger can reduce the energy consumption required by heating the nitrogen, reduce the energy consumption and save the cost.
Drawings
Fig. 1 is a schematic structural diagram in a first embodiment of the present invention.
Wherein: 1. a powder spraying dryer; 2. a hot blast stove; 3. a fluidized drying bed; 4. a heat exchanger; 5. a condenser; 6. a dehumidifier; 7. a nitrogen main pipe; 8. a nitrogen inlet; 9. a first air inlet; 10. a first air outlet; 11. a second air inlet; 12. a second air outlet; 13. a first connecting pipe; 14. a second connecting pipe; 15. a third connecting pipe; 16. a fourth connecting pipe; 17. a third dust remover; 18. a first dust remover; 19. a gas supplementing pipe; 20. an electromagnetic valve; 21. a barometer.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1, a polyunsaturated fatty acid microcapsule drying system comprises a powder spraying dryer 1, a hot blast stove 2 and a fluidized drying bed 3, the discharge hole of the powder spraying dryer is connected with the feed hole of the fluidized drying bed, the air outlet of the hot blast stove is connected with the air inlet of the powder spraying dryer, the powder spraying dryer also comprises a heat exchanger 4, a condenser 5, a dehumidifier 6 and a nitrogen main pipe 7, one end of the nitrogen main pipe is connected with the air inlet of the fluidized drying bed, the other end of the nitrogen main pipe is connected with the air outlet of the fluidized drying bed, the condenser and the dehumidifier are arranged on the nitrogen main pipe, the dehumidifier is arranged close to the air inlet of the fluidized drying bed, the condenser is arranged close to the air outlet of the fluidized drying bed, the nitrogen main pipe is provided with a nitrogen inlet 8, and the nitrogen inlet is arranged between the dehumidifier and the fluidized drying bed;
a first air inlet 9, a first air outlet 10, a second air inlet 11 and a second air outlet 12 are arranged on the heat exchanger 4, the first air inlet is communicated with the first air outlet, and the second air inlet is communicated with the second air outlet;
the first air inlet 9 is connected with the nitrogen main pipe through a first connecting pipe 13, the end part of the first connecting pipe is arranged on the nitrogen main pipe between the nitrogen inlet and the air inlet of the fluidized drying bed, and the first air outlet 10 is connected with the air inlet of the hot blast stove through a second connecting pipe 14;
the second air inlet 11 is connected with the air outlet of the powder spraying dryer through a third connecting pipe 15, the second air outlet 12 is connected with the nitrogen main pipe through a fourth connecting pipe 16, and the end part of the fourth connecting pipe is arranged on the nitrogen main pipe between the condenser and the air outlet of the fluidized drying bed.
Referring to fig. 1, a third dust collector 17 is disposed on the third connecting pipe 15; and a first dust remover 18 is arranged on the nitrogen main pipe, and the first dust remover is arranged on the nitrogen main pipe between the condenser and the fluidized drying bed air outlet. In this embodiment, when the desiccator that dusts sprays powder the drying to the product, when the fluidized drying bed is to product cool drying, gas outlet between them all can during the spun high temperature nitrogen gas, can contain more dust, block up pipeline or rear end condenser and dehumidifier for preventing the dust, through the setting of third dust remover and first dust remover, can collect the dust, prevent the equipment damage with the rear end of dust in the pipeline, the operation that the assurance system can be normal.
Referring to fig. 1, an air supply pipe 19 is further provided, an air inlet of the air supply pipe is connected with the nitrogen main pipe, an air outlet of the air supply pipe is connected with the second connecting pipe, and an air inlet of the air supply pipe is arranged on the nitrogen main pipe between the air inlet of the first connecting pipe and the air inlet of the fluidized drying bed.
The air supplementing pipe is provided with an electromagnetic valve 20, and the second connecting pipe is provided with a barometer 21.
Wherein, the barometer can detect the atmospheric pressure above the second connecting pipe, and whether the atmospheric pressure value that also detects to enter into the hot-blast furnace is qualified, also whether the atmospheric pressure that also enters into the desiccator that dusts satisfies the requirement, if atmospheric pressure is not enough, can open the air supplement pipe through the solenoid valve, is responsible for the intercommunication with second connecting pipe and nitrogen gas, gives the second connecting pipe supplementary nitrogen gas, guarantees that the atmospheric pressure of second connecting pipe is sufficient, guarantees the normal work of equipment.
Wherein, still can set up control valve and barometer on each pipeline, control with the controller for guarantee the steady operation of system.
In order to achieve the aim, the invention adopts a drying process of a polyunsaturated fatty acid microcapsule drying system, which comprises the following steps:
filling nitrogen into a nitrogen main pipe from a nitrogen inlet, and filling the whole system with nitrogen; the nitrogen can fill each pipeline and the inside of the equipment, so that the contact between air and the product can be prevented when the product is processed, and the nitrogen is filled for protection in the product processing process;
secondly, the product enters a powder spraying dryer from a feed inlet of the powder spraying dryer for primary drying, and is cooled and dried by a fluidized drying bed; wherein, the product entering the powder spraying dryer is in an emulsion state, namely a liquid product;
thirdly, low-temperature nitrogen in the nitrogen main pipe enters a heat exchanger for heat exchange through a first connecting pipe, is conveyed into a hot air furnace from a second connecting pipe, is heated into high-temperature nitrogen through the hot air furnace, and enters a powder spraying dryer for drying products; meanwhile, low-temperature nitrogen in the nitrogen main pipe enters the fluidized drying bed to cool and dry the product, and the nitrogen heated by the fluidized drying bed flows back to the air inlet of the condenser;
fourthly, the hot air after passing through the powder spraying dryer enters the heat exchanger through a third connecting pipe, exchanges heat with the low-temperature nitrogen entering the heat exchanger in the third step, reduces the temperature, and then flows back into the nitrogen main pipe at the front end of the condenser through a fourth connecting pipe;
the hot blast stove heats the nitrogen, so that the high-temperature nitrogen enters the powder spraying dryer, the high-temperature nitrogen is used for spraying powder and drying, the moisture in the product is taken away, the residual powder or solid product, the solidified or powder product enters the fluidized drying bed for cooling and drying, and then the dried product is sent out. The nitrogen gas after the powder spraying dryer is sent out from the gas outlet, the temperature of the nitrogen gas reaches 70-90 ℃, a large amount of water vapor is contained, the high-temperature nitrogen gas can pass through the heat exchanger, the temperature of the nitrogen gas is lower when the nitrogen gas enters the hot blast stove from the main nitrogen gas pipe through the heat exchanger, and in order to reduce the energy consumption of the hot blast stove, the high-temperature nitrogen gas sent out by the powder spraying dryer and the low-temperature nitrogen gas can exchange heat, so that the energy consumption of the hot blast stove can be reduced, and the cost is reduced.
Cooling the high-temperature nitrogen in the nitrogen main pipe in the condenser step III and the condenser step IV, removing moisture in the nitrogen through a dehumidifier, refluxing the nitrogen into the nitrogen main pipe at the nitrogen inlet, and repeating the steps I to circulate the powder spraying dryer;
in the fourth step, after the high-temperature nitrogen enters the powder spraying dryer to dry the product, the nitrogen entering the third connecting pipe carries some dust, and the dust is removed by a third dust remover on the third connecting pipe; and in the second step, the nitrogen with dust sent out from the air outlet of the fluidized drying bed is dedusted by a first deduster.
When the pressure gauge detects that the pressure of the second connecting pipe becomes small, the electromagnetic valve is opened, and nitrogen on the nitrogen main pipe is supplemented into the second connecting pipe.

Claims (7)

1. The utility model provides a polyunsaturated fatty acid microcapsule drying system, includes powder spray dryer, hot-blast furnace and fluidized drying bed, the discharge gate of powder spray dryer with fluidized drying bed's feed inlet links to each other, the air outlet of hot-blast furnace with the air inlet of powder spray dryer links to each other its characterized in that: the fluidized drying bed is characterized by further comprising a heat exchanger, a condenser, a dehumidifier and a nitrogen main pipe, wherein one end of the nitrogen main pipe is connected with an air inlet of the fluidized drying bed, the other end of the nitrogen main pipe is connected with an air outlet of the fluidized drying bed, the condenser and the dehumidifier are arranged on the nitrogen main pipe, the dehumidifier is arranged close to the air inlet of the fluidized drying bed, the condenser is arranged close to the air outlet of the fluidized drying bed, a nitrogen inlet is formed in the nitrogen main pipe, and the nitrogen inlet is arranged between the dehumidifier and the fluidized drying bed;
the heat exchanger is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet is communicated with the first air outlet, and the second air inlet is communicated with the second air outlet;
the first air inlet is connected with the nitrogen main pipe through a first connecting pipe, the end part of the first connecting pipe is arranged on the nitrogen main pipe between the nitrogen inlet and the air inlet of the fluidized drying bed, and the first air outlet is connected with the air inlet of the hot blast stove through a second connecting pipe;
the second air inlet is connected with the air outlet of the powder spraying dryer through a third connecting pipe, the second air outlet is connected with the nitrogen main pipe through a fourth connecting pipe, and the end part of the fourth connecting pipe is arranged on the nitrogen main pipe between the condenser and the air outlet of the fluidized drying bed.
2. The polyunsaturated fatty acid microcapsule drying system according to claim 1, wherein: a third dust remover is arranged on the third connecting pipe; and a first dust remover is arranged on the nitrogen main pipe, and the first dust remover is arranged on the nitrogen main pipe between the condenser and the gas outlet of the fluidized drying bed.
3. The polyunsaturated fatty acid microcapsule drying system according to claim 1, wherein: still be equipped with an air supplement pipe, air supplement pipe's air inlet with nitrogen gas is responsible for and links to each other, air supplement pipe's gas outlet with the second connecting pipe links to each other, air supplement pipe's air inlet set up in first connecting pipe air inlet with nitrogen gas between the fluidized drying bed air inlet is responsible for on.
4. The polyunsaturated fatty acid microcapsule drying system according to claim 3, wherein: the air supplementing pipe is provided with an electromagnetic valve, and the second connecting pipe is provided with a barometer.
5. A drying process of a polyunsaturated fatty acid microcapsule drying system comprises the following steps:
filling nitrogen into a nitrogen main pipe from a nitrogen inlet, and filling the whole system with nitrogen;
secondly, the product enters a powder spraying dryer from a feed inlet of the powder spraying dryer for primary drying, and is cooled and dried by a fluidized drying bed;
thirdly, low-temperature nitrogen in the nitrogen main pipe enters a heat exchanger for heat exchange through a first connecting pipe, is conveyed into a hot air furnace from a second connecting pipe, is heated into high-temperature nitrogen through the hot air furnace, and enters a powder spraying dryer for drying products; meanwhile, low-temperature nitrogen in the nitrogen main pipe enters the fluidized drying bed to cool and dry the product, and the nitrogen heated by the fluidized drying bed flows back to the air inlet of the condenser;
fourthly, the hot air after passing through the powder spraying dryer enters the heat exchanger through a third connecting pipe, exchanges heat with the low-temperature nitrogen entering the heat exchanger in the third step, reduces the temperature, and then flows back into the nitrogen main pipe at the front end of the condenser through a fourth connecting pipe;
cooling the high-temperature nitrogen in the nitrogen main pipe in the condenser step III and the condenser step IV, removing moisture in the nitrogen through a dehumidifier, refluxing the nitrogen into the nitrogen main pipe at the nitrogen inlet, and repeating the steps I to circulate the powder spraying dryer;
6. the drying process of polyunsaturated fatty acid microcapsule drying system according to claim 5, characterized in that: in the fourth step, after the high-temperature nitrogen enters the powder spraying dryer to dry the product, the nitrogen entering the third connecting pipe carries some dust, and the dust is removed by a third dust remover on the third connecting pipe; and in the second step, the nitrogen with dust sent out from the air outlet of the fluidized drying bed is dedusted by a first deduster.
7. The drying process of polyunsaturated fatty acid microcapsule drying system according to claim 5, characterized in that: when the pressure gauge detects that the pressure of the second connecting pipe becomes small, the electromagnetic valve is opened, and nitrogen on the nitrogen main pipe is supplemented into the second connecting pipe.
CN201911009752.3A 2019-10-23 2019-10-23 Polyunsaturated fatty acid microcapsule drying system and drying process thereof Pending CN110657647A (en)

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CN102965170A (en) * 2012-11-30 2013-03-13 山东天力干燥股份有限公司 Energy-saving environment-friendly lignite briquette preparation technology and system
CN104019633A (en) * 2014-06-10 2014-09-03 张家港市杨舍丝印工艺厂 Intermittent closed-loop fluidized drying method
KR101466671B1 (en) * 2013-06-10 2014-12-01 한국에너지기술연구원 Fluidized bed drying device with dehumidifying fluidizing-gas
CN104251603A (en) * 2014-09-03 2014-12-31 嘉善圣莱斯绒业有限公司 Powder drying device
US20150198367A1 (en) * 2012-08-09 2015-07-16 Dpx Fine Chemicals Austria Gmbh & Co Kg Process for drying polymeric materials
CN204555606U (en) * 2014-05-02 2015-08-12 山东科院天力节能工程有限公司 A kind of drying system of two-stage drying machine combination
CN205843207U (en) * 2016-07-13 2016-12-28 滨海金地矿业工程技术(北京)有限公司 A kind of coal drying system
CN108955093A (en) * 2018-08-08 2018-12-07 济南岳丰能源科技有限公司 A kind of impact modifier drying system and technique
CN211041659U (en) * 2019-10-23 2020-07-17 挪亚圣诺（太仓）生物科技有限公司 Polyunsaturated fatty acid microcapsule drying device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150198367A1 (en) * 2012-08-09 2015-07-16 Dpx Fine Chemicals Austria Gmbh & Co Kg Process for drying polymeric materials
CN102965170A (en) * 2012-11-30 2013-03-13 山东天力干燥股份有限公司 Energy-saving environment-friendly lignite briquette preparation technology and system
KR101466671B1 (en) * 2013-06-10 2014-12-01 한국에너지기술연구원 Fluidized bed drying device with dehumidifying fluidizing-gas
CN204555606U (en) * 2014-05-02 2015-08-12 山东科院天力节能工程有限公司 A kind of drying system of two-stage drying machine combination
CN104019633A (en) * 2014-06-10 2014-09-03 张家港市杨舍丝印工艺厂 Intermittent closed-loop fluidized drying method
CN104251603A (en) * 2014-09-03 2014-12-31 嘉善圣莱斯绒业有限公司 Powder drying device
CN205843207U (en) * 2016-07-13 2016-12-28 滨海金地矿业工程技术(北京)有限公司 A kind of coal drying system
CN108955093A (en) * 2018-08-08 2018-12-07 济南岳丰能源科技有限公司 A kind of impact modifier drying system and technique
CN211041659U (en) * 2019-10-23 2020-07-17 挪亚圣诺（太仓）生物科技有限公司 Polyunsaturated fatty acid microcapsule drying device

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