CN104034126B - A kind of superheat steam drying system and technique - Google Patents
A kind of superheat steam drying system and technique Download PDFInfo
- Publication number
- CN104034126B CN104034126B CN201410276492.7A CN201410276492A CN104034126B CN 104034126 B CN104034126 B CN 104034126B CN 201410276492 A CN201410276492 A CN 201410276492A CN 104034126 B CN104034126 B CN 104034126B
- Authority
- CN
- China
- Prior art keywords
- steam
- temperature
- heat
- hothouse
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
It include vapour compression machine, condensing heat exchanger, circulating fan, hothouse, cyclone separator etc. the invention discloses a kind of a kind of superheat steam drying system suitable for fields such as industrial sludge processing, chemical industry, medicine, timber, food and agricultural and sideline products and technique, the system structure.In drying process, the superheated steam being discharged from hothouse is divided into two-way, flow through all the way vapour compression machine make its temperature, pressure increase after then by being condensed into condensing heat exchanger and releasing latent heat, simultaneously with the steam heat-exchanging that is in addition directly entered condenser heat exchanger all the way, unpressed steam is further increased due to absorbing thermal temperature with the degree of superheat, the raised superheated steam of temperature after and be passed into hothouse carry out material drying, to form the closed cycle of superheated steam and the recycling of energy.Energy-saving effect of the present invention is significant, and dry products quality is good, and dry without raw steam, environment-protective no-smell, anaerobic do not have explosion danger safe and reliable.
Description
Technical field
The present invention relates to one kind to be applied to the drying such as industrial sludge processing, chemical industry, medicine, timber, food and agricultural and sideline product
The superheat steam drying system and technique in field.
Background technique
It is dry to refer to the technique that moisture in material is removed under manual control or natural conditions.In the process of product
In, drying is a very important link, have been widely used for industrial sludge processing, chemical industry, medicine, timber, food and
The fields such as agricultural and sideline product.Meanwhile the ratio that research finds that dry consumed energy ratio accounts for total energy consumption is just increasing year by year, flourishing state
Family's industrial consumption energy 14% is used for drying, and technology is more backward in this respect in China, the field of drying specific energy consumption more
The dry energy consumption of height, some industries even accounts for producing 35% always to consume energy.In face of increasingly serious energy crisis and environment pressure
How power reduces the energy consumption problem of drying process, has become a research emphasis of dry technology research.
The dry technology that traditional industrial production generallys use mainly has: vulcanization bed is dry, be spray-dried, infra-red radiation is done
Dry, pneumatic conveying drying, heated-air drying etc., these dry technology development times are long, using more mature reliable, have in the world compared with
To be widely applied.But how to realize that energy conservation and environmental protection is a major challenge that conventional drying techniques face.The dry association master in the world
Seat professor Mujumdar thinks that the development of dry technology will be along raising product quality, improve energy utilization rate, reduction environment
The directions such as pollution, safe operation, easily controllable are developed.In novel dried technology, Superheated Steam Drying Technology has its own
Apparent advantage, while can be good at reaching these targets, therefore, Superheated Steam Drying Technology is most potential dry
One of dry technology.
Superheat steam drying refers to the drying mode for directly contacting and going moisture removal with dried material with superheated steam.With
The dry technologies such as traditional heated-air drying are compared, and Superheated Steam Drying Technology, which has the advantage that, can make full use of steam
Latent heat, energy-saving effect highly significant, specific energy consumption are only the one third of common heated-air drying energy consumption；Superior product quality；Heat transfer
Coefficient is big, and specific heat capacity is big, no resistance to mass tranfer, and steam consumption is few；Without the danger exploded and caught fire；With sterilizing effect, together
When be conducive to protection environment.Superheat steam drying equipment has begun in foreign countries and is applied to produce, and achieves good effect.
At home, since technical threshold is higher, the production rarely applied.Therefore, Superheated Steam Drying Technology is studied and develops, for
It improves drying efficiency, reduce energy consumption for drying, less environmental pollution, be of great significance.
Summary of the invention
Significant the purpose of the invention is to provide a kind of energy-saving effect, dry products quality is good, feeds life without extraneous
Steam, a kind of superheated steam for being applicable to the fields such as industrial sludge processing, chemical industry, medicine, timber, food and agricultural and sideline product are dry
Drying system and technique.The system structure includes vapour compression machine (1), condensing heat exchanger (2), water pump (3), circulating fan (4), adds
Hot device (5), hothouse (6), cyclone separator (7), gas-liquid heat-exchange (8), feed hopper (9), preheater (10), mixing chamber
(11), water interlayer (12) are kept the temperature.It is characterized by: drying system is on startup, since system does not need the raw steam of extraneous infeed,
Therefore air is heated by heater (5) first, hot-air is first driven by circulating fan (4), and hot-air becomes in system at this time
Closed cycle, as drying process material moisture rapid evaporation is into hot-air, most air in system are by steam institute
Displacement, system initially enters superheat steam drying state at this time.What the material being discharged from hothouse (6) generated after by thermal evaporation
Steam is divided into two-way, wherein flowing through both vapor compression all the way after the solid particle for including in cyclone separator (7) removal steam
Machine (1), its temperature, pressure is increased, and is entered in condensing heat exchanger (2), and is in addition directly entered condensing heat exchanger (2) all the way
Middle steam exchanges heat.Due to by vapour compression machine (1) compression this all the way its temperature, pressure ratio of steam without vapour pressure
The temperature of contracting machine (1) wants high, thus forms heat transfer temperature difference, to transfer heat in condensing heat exchanger (2) unpressed
Steam improves its temperature, becomes the higher superheated steam of the degree of superheat, this road is uncompressed and to improve the steam after the degree of superheat logical
It crosses circulating fan (4) and is passed into hothouse (6) and material is dried, to form the closed cycle of superheated steam；And it passes through
The steam for crossing this road high temperature and pressure of vapour compression machine (1) releases latent heat in condensing heat exchanger (1) and is condensed into same isothermal
The water of degree, this condensed water with certain temperature are driven into the heat preservation of hothouse (6) and cyclone separator (7) by water pump (3)
In water interlayer (12), to generate heat insulation effect to hothouse (6) and cyclone separator (7).Condensed water from heat preservation water interlayer (12)
It after middle outflow, is passed into gas-liquid heat-exchange (8) and exchanges heat with air, its temperature of the condensed water by heat exchange reduces, directly
It discharges or is further processed.And in gas-liquid heat-exchange (8), the temperature of air is increased, and the air after heating is passed into
The material from feed hopper (9) is preheated in preheater (10).The material of preheated device (10) preheating is in mixing chamber
(11) it is passed into hothouse (6) and is dried after being mixed in part dry material.Dry material a part after the drying returns
While mixing in mixing chamber (11) with wet stock, another part dry material is discharged directly as product has been dried.
The advantages of superheat steam drying system of the invention and technique is: (1) technique can abundant reuse steam condensation
Latent heat, energy-saving effect highly significant, the water yield of specific energy consumption are 2~10 times of normal drying technology；(2) the process heat transfer system
Number is big, and specific heat capacity is big, no resistance to mass tranfer, and rate of drying is fast；(3) superior product quality, and have the function of sterilizing simultaneously；
(4) relative to other Superheated Steam Drying Technologies, which provides other life steam completely without extraneous, can not have to be somebody's turn to do
System is individually equipped with boiler and steam pipe line；(5) it is closed cycle in internal system for dry steam, there is superheated steam
Dry all advantages are the safe drying process of a kind of environment-protective no-smell, not oxygen-containing no explosion danger.(6) pressure of the system
The drying temperature of power and material is adjustable, so that the technique can be widely applied to industrial sludge processing, chemical industry, medicine, wood
Material, food and agricultural and sideline product etc. dry field.
Detailed description of the invention
Fig. 1 is system flow chart of the invention
In figure: 1. vapour compression machine, 2. condensing heat exchanger, 3. water pump, 4. circulating fan, 5. heater
6. 9. feed hopper of hothouse 7. cyclone separator, 8. heat exchanger, 10. preheater
11. mixing chamber 12. keeps the temperature water interlayer
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail.
Fig. 1 shows superheat steam drying system process flow chart of the invention, shown referring to Fig.1, in system workflow
Journey is as follows:
1) material to be dried is sent into hothouse by belt drive or other transmission mechanisms, then activation system.?
In system starting process, material to be dried is not added, and after system start completion, feed system reworks and will be to be dried
Material is constantly sent into system；
2) system start when, by heater (5) heat air, hot-air by circulating fan (4) drive, at this time hot-air at
For the closed cycle in system.As drying process material moisture rapid evaporation is into hot-air, the overwhelming majority in system is empty
Gas is replaced by steam, and system initially enters superheat steam drying state at this time, and start-up course is completed；
3) it is divided into two-way after cyclone separator (7) from the superheated steam that hothouse (6) are discharged, wherein flowing through steaming all the way
Vapour compressor (1), then by the way that in condensing heat exchanger (2), in addition one is directly entered condensation and changes after temperature, pressure raising
In hot device (2)；
4) in condensing heat exchanger (2), due to being increased by its temperature, pressure of steam of vapour compression machine (1), thus shape
At heat transfer temperature difference, so that the steam of high temperature and pressure exchanges heat with unpressed steam, by the heat exchange of condensing heat exchanger (2),
Unpressed steam due to absorb thermal temperature further increase, the raised steam of temperature after and be passed into hothouse (6)
The middle drying for carrying out material, to form the closed cycle of superheated steam；
5) steam of the high temperature and pressure simultaneously, through vapour compression machine (1) compression passes through the heat exchange of condensing heat exchanger (2), puts
Latent heat and it is condensed into water out, the condensed water with certain temperature is driven into hothouse (6) and cyclone separator by water pump (3)
(7) in heat preservation water interlayer (12), to form the heat insulation effect of hothouse (6) and cyclone separator (7)；
6) condensed water is passed into heat exchanger (8) and exchanges heat with air after outflow in heat preservation water interlayer (12), passes through
Its temperature of the condensed water of heat exchange reduces, direct emission.And in heat exchanger (8), the temperature of air is increased, the sky after heating
Gas is passed into preheater (10) and preheats to the material to be dried from feed hopper (9)；
7) material of preheated device (10) preheating is passed into hothouse after mixing in mixing chamber (11) with part dry material
(6) dry in；
8) material after drying is constantly discharged from hothouse (6), and dry material a part returns in mixing chamber (11)
While mixing with wet stock, another part dry material is discharged directly as product.
By above-mentioned process flow, dry materials, energy regenerating, energy-saving, environmentally protective are achieved the purpose that.This
The actual measurement of model machine of the invention by production shows: the adjustable pressure of system and drying temperature keep the systematic difference cleverer
Living, simple construction keeps the system relatively reliable, and closed superheated steam circulation has higher efficiency the system and more
Good energy-saving effect.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, some nonessential improvement that person skilled in art makes the present invention according to the content of aforementioned present invention and
Adjustment, still falls within protection scope of the present invention.
Claims (1)
1. a kind of superheat steam drying process, which includes vapour compression machine (1), condensing heat exchanger (2), water pump
(3), circulating fan (4), heater (5), hothouse (6), cyclone separator (7), gas-liquid heat-exchange (8), feed hopper (9), pre-
Hot device (10), mixing chamber (11), heat preservation water interlayer (12)；It is characterized by: being started based on the drying system of the process
When, due to not needing the raw steam of extraneous infeed, air is heated by heater (5) first, hot-air is first by circulating fan (4)
Driving, hot-air becomes the closed cycle in drying system at this time, with drying process material moisture rapid evaporation to hot-air
In, most air in drying system are replaced by steam, and drying system initially enters superheat steam drying shape at this time
State；The steam that the material being discharged from hothouse (6) generates after by thermal evaporation by including in cyclone separator (7) removal steam
After solid particle, it is divided into two-way, wherein flowing through vapour compression machine (1) all the way, its temperature, pressure is increased, condensing heat-exchange is entered
In device (2), exchange heat with steam in condensing heat exchanger (2) is in addition directly entered all the way；Due to being pressed by vapour compression machine (1)
Its temperature and pressure of steam is high than without the temperature and pressure of vapour compression machine (1) all the way for this of contracting, thus forms heat exchange
The temperature difference improves its temperature, becomes the degree of superheat more to transfer heat to unpressed steam in condensing heat exchanger (2)
High superheated steam, this road is uncompressed and improves the steam after the degree of superheat and is passed into hothouse (6) by circulating fan (4)
Material is dried, to form the closed cycle of superheated steam；And pass through this road high temperature and pressure of vapour compression machine (1)
Steam releases latent heat in condensing heat exchanger (2) and is condensed into the water of same temperature, this condensed water with certain temperature is logical
It crosses water pump (3) to be driven into the heat preservation water interlayer (12) of hothouse (6) and cyclone separator (7), to hothouse (6) and whirlwind
Separator (7) generates heat insulation effect；Condensed water from heat preservation water interlayer (12) in outflow after, be passed into gas-liquid heat-exchange (8) with
Air exchanges heat, its temperature of the condensed water by heat exchange reduces, and direct emission or is further processed, and in gas-liquid heat-exchange
(8) in, the temperature of air is increased, and the air after heating is passed into preheater (10) to the object for coming from feed hopper (9)
Material is preheated, and the material of preheated device (10) preheating is passed into hothouse after mixing in mixing chamber (11) with part dry material
(6) it is dried in, dry material a part after the drying with wet stock back to while mixing in mixing chamber (11), in addition
A part of dry material is discharged directly as product has been dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276492.7A CN104034126B (en) | 2014-06-20 | 2014-06-20 | A kind of superheat steam drying system and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276492.7A CN104034126B (en) | 2014-06-20 | 2014-06-20 | A kind of superheat steam drying system and technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104034126A CN104034126A (en) | 2014-09-10 |
| CN104034126B true CN104034126B (en) | 2019-08-02 |
Family
ID=51465001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410276492.7A Expired - Fee Related CN104034126B (en) | 2014-06-20 | 2014-06-20 | A kind of superheat steam drying system and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104034126B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758162A (en) * | 2016-03-07 | 2016-07-13 | 南京航空航天大学 | Water vapor vacuum rapid drying system and working method |
| CN106495427A (en) * | 2016-12-14 | 2017-03-15 | 南京航空航天大学 | The continuous drying system of MVR superheated steam sludge and method of work |
| CN107252666B (en) * | 2017-07-12 | 2022-10-21 | 艾洛益(杭州)材料科技有限公司 | Steam-water separation outlet device applied to oxygen-free closed system under inert gas protection |
| CN108759442A (en) * | 2018-04-18 | 2018-11-06 | 浙江理工大学 | Superheated steam heating and drying device and method |
| CN108981372A (en) * | 2018-07-05 | 2018-12-11 | 伊婕 | Highly effective drying system |
| CN113218107A (en) * | 2021-05-26 | 2021-08-06 | 河南永联科技有限公司 | Fried drying device based on mechanical supercharged oil heat exchange steam recondensing process |
| CN114322506B (en) * | 2021-12-31 | 2023-05-26 | 天津农学院 | Cone disc type superheated steam drying device and method suitable for granular materials |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133591A (en) * | 2007-12-03 | 2009-06-18 | Ohkawara Kakohki Co Ltd | Continuous type normal pressure superheated water vapor drying method and device |
| CN102823640A (en) * | 2012-09-24 | 2012-12-19 | 陈锦权 | Energy-conservation drying device for drying vegetables and seaweed type products and drying method thereof |
| CN202915682U (en) * | 2012-11-30 | 2013-05-01 | 山东科院天力节能工程有限公司 | Drying system recycling waste heat steam heat |
| CN203478891U (en) * | 2013-09-05 | 2014-03-12 | 山东天力干燥股份有限公司 | Steam rotary drying system using superheated steam humidity carrying |
| CN103644709A (en) * | 2013-12-25 | 2014-03-19 | 山东奥诺能源科技有限公司 | Superheated steam drying device and method |
| CN103822440A (en) * | 2012-11-18 | 2014-05-28 | 航天长征化学工程股份有限公司 | steam fluidized bed drying device and drying method |
-
2014
- 2014-06-20 CN CN201410276492.7A patent/CN104034126B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009133591A (en) * | 2007-12-03 | 2009-06-18 | Ohkawara Kakohki Co Ltd | Continuous type normal pressure superheated water vapor drying method and device |
| CN102823640A (en) * | 2012-09-24 | 2012-12-19 | 陈锦权 | Energy-conservation drying device for drying vegetables and seaweed type products and drying method thereof |
| CN103822440A (en) * | 2012-11-18 | 2014-05-28 | 航天长征化学工程股份有限公司 | steam fluidized bed drying device and drying method |
| CN202915682U (en) * | 2012-11-30 | 2013-05-01 | 山东科院天力节能工程有限公司 | Drying system recycling waste heat steam heat |
| CN203478891U (en) * | 2013-09-05 | 2014-03-12 | 山东天力干燥股份有限公司 | Steam rotary drying system using superheated steam humidity carrying |
| CN103644709A (en) * | 2013-12-25 | 2014-03-19 | 山东奥诺能源科技有限公司 | Superheated steam drying device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034126A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104034126B (en) | A kind of superheat steam drying system and technique | |
| CN202041044U (en) | Spray drying waste heat recycling device | |
| CN101788221B (en) | Novel silica gel energy-saving drying device and process thereof | |
| CN105021015A (en) | Superhigh-temperature heat pump drying system | |
| CN103229829A (en) | Process method for rapidly drying grains through countercurrent gas flow | |
| CN105800904A (en) | Microwave infrared coupling low-temperature drying equipment for sludge | |
| CN103575081B (en) | Fermented feed drying method | |
| CN104880051B (en) | The biomass drying system and method for latent heat and sensible heat are reclaimed simultaneously | |
| CN103708702A (en) | Energy-saving sludge drying device by utilizing recovery waste heat of vapor compression | |
| CN108489251A (en) | A kind of pump type heat low-temperature circulating formula crop dryer of waste heat recoverable | |
| CN103575082B (en) | Fermented feed drying system | |
| CN106595238A (en) | Solar energy and air energy drying device | |
| CN102797064A (en) | Drying and adjusting process and device for viscose fibers | |
| CN203586725U (en) | Fermented forage drying device | |
| CN206207966U (en) | Water circulation type function of mechanical steam recompression MVR drying systems | |
| CN201569250U (en) | Novel energy-saving silica-gel dryer | |
| CN204165372U (en) | Combined steam decompression cycles multilevel drying system | |
| CN107314621A (en) | A kind of method for microwave drying and its device of use | |
| CN101776373A (en) | Pressurizing superheat steam drying method and device with inner heater and capable of being reused | |
| CN204301412U (en) | A kind of rapid draing fluid bed | |
| CN207635656U (en) | A kind of heat pump vacuum evaporator | |
| CN206306299U (en) | A kind of industrially drying system based on the comprehensive utilization of air energy Cooling and Heat Source | |
| CN201385389Y (en) | Natural rubber steam drying oven | |
| CN204944060U (en) | A kind of complete living beings drying plant | |
| CN104359304B (en) | Combined steam decompression cycles multilevel drying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20210620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |