CN106705571A - Energy-saving microwave drying equipment - Google Patents

Energy-saving microwave drying equipment Download PDF

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Publication number
CN106705571A
CN106705571A CN201710172632.XA CN201710172632A CN106705571A CN 106705571 A CN106705571 A CN 106705571A CN 201710172632 A CN201710172632 A CN 201710172632A CN 106705571 A CN106705571 A CN 106705571A
Authority
CN
China
Prior art keywords
microwave drying
microwave
energy
drying equipment
preheating section
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.)
Pending
Application number
CN201710172632.XA
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Chinese (zh)
Inventor
不公告发明人
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710172632.XA priority Critical patent/CN106705571A/en
Publication of CN106705571A publication Critical patent/CN106705571A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • 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
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust 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
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention relates to energy-saving microwave drying equipment capable of carrying out sufficient waste heat recovery on microwave steam. The problems that unit energy consumption is high, foreign taste is emitted and potential safety hazards are caused when some materials volatilize combustible gas in the drying process according to existing microwave drying equipment are solved through the product. The equipment is mainly composed of a preheating section and a microwave drying section and accessorily comprises a refrigeration system, a waste heat recovery system and an automatic nitrogen filling system. When the equipment carries out microwave drying on materials, an evaporator in the refrigeration system cools microwave steam into condensate water, remaining warm dry air is recycled, and gas emission is avoided; condensate water is used as an intermediate medium for recycling microwave steam heat which carries out preheating on materials together with heat produced by a condenser in the refrigeration system; and the automatic nitrogen filling system carries out rapid nitrogen filling protection when a combustible gas sensor, a controller and a release valve detect that the concentration of combustible gas in a cavity of the equipment reaches the preset value.

Description

A kind of energy-conservation microwave drying equipment
Technical field
The invention belongs to microwave drying field, it is related to the microwave drying equipment of a kind of energy-saving and environmental protection and safety.
Background technology
At present, microwave drying equipment because its rate of drying is fast, production efficiency is high, uniform drying, clean manufacturing and be easy to from The advantages of dynamicization is controlled is by every profession and trade extensive use；But because microwave steam is in line in drying course, cause thermal loss big, Unit power consumption amount is high；Foul smell, peculiar smell discharge have been had during some material microwave dryings；Some materials are in drying course because having There is potential safety hazard in fuel gas volatilization.
The content of the invention
The technical problem of solution：
Fully reclaim microwave steam heat, reducing energy consumption；Hot-air in drying process is closed circulating state, some The hydrogen sulfide, ammonia and the ammonia nitrogen class material that are produced in material are the main sources of foul smell and peculiar smell, and condensed water is formed in steam During this kind of gas be also dissolved in condensed water, discharged with condensed water, thus without foul smell and peculiar smell discharging；When detecting equipment cavity When the combustible gas concentration produced in body reaches predetermined value, automatic nitrogen-charging gas ensures safety.
The technical scheme of use：
By increasing refrigeration system, microwave steam is cooled to condensed water using evaporator, fully reclaim microwave steam because Sensible heat and the latent heat because of phase transformation generation that cooling is produced, and this partial heat is used for by material by the condenser in refrigeration system Preheating；Condensed water is further reclaimed into microwave steam heat by precool heat exchanger device as intermediate medium again to be preheated for material； Hot-air system in microwave drying equipment is in closed circulating state under fan action, does not there is any discharge to external world；It is logical The automatic interlock control of nitrogen storage tank, flammable gas sensor, controller and relief valve is crossed, when the accumulation of combustible gas concentration is to there is safety During hidden danger, relief valve is opened, and the inert nitrogen gas in storage tank are rapidly filled with equipment cavity so that it is guaranteed that safety.
Beneficial effect：
The energy-conservation microwave drying equipment fully reclaims microwave steam heat, reduction unit very bigger than conventional microwave drying plant Energy consumption；Closed circulation does not have foul smell and peculiar smell discharging to hot-air all the time in drying course, more environmentally-friendly；Automatic nitrogen-charging gas system Avoid equipment explosion risk, it is ensured that safety.
Brief description of the drawings
Fig. 1 integrated artistic flow charts
1. preheating section in figure, 2. microwave drying section, 3. foraminous conveyer, 4. heat-insulated cavity, 5. condenser, 6. evaporator, 7. One section of precool heat exchanger device, 8. two sections of precool heat exchanger device, 9. preheating heat exchanger, 10. preheating section circulating fan, 11. expansion valves, 12. Refrigeration compressor, 13. nitrogen storage tanks, 14. nitrogen relief valves, 15. flammable gas sensors, 16. controllers, 17. condensation water collections Groove, 18. water pumps, 19. microwave dryings section vacuum regulating valve, A. feed chutes, B. discharging openings, C. condensate drain outlets
Specific embodiment
The 1 couple of present invention further elaborate below in conjunction with the accompanying drawings
Wet stock enters the microwave drying equipment from feed chute A, falls on foraminous conveyer 3, and foraminous conveyer 3 is first by material Feeding preheating section 1, the hot blast that preheating section circulating fan 10 is produced penetrates foraminous conveyer 3 and material, wet stock is carried out first pre- Heat heats up, and the heat in circulating air comes from condenser 5 and preheating heat exchanger 9 in refrigeration system；By pre-heating temperature elevation Material enters microwave drying section 2, and material is rapidly heated generation steam under microwave action, by microwave drying section vacuum breaker 19 regulation vacuums, the mixed gas for promoting microwave steam, air and a small amount of material volatilization gas to be formed pass through precool heat exchanger device Two section 8, one section 7 of precool heat exchanger device and evaporator 6, form condensed water and enter condensation by microwave steam after cooling and cooling procedure Water collecting groove 17；Dried material is sent out through discharging opening B；Hydrogen sulfide, ammonia and the ammonia nitrogen class thing volatilized in some materials Matter during microwave steam is condensed in also condensed water is dissolved in；Condensed water is entered into pre- as intermediate medium by water pump 18 One section 7 of cold heat exchanger, 8 pairs of microwave steam coolings of precool heat exchanger device two section, while microwave steam heat is reclaimed, on condensate temperature Rise；Condensed water is lowered the temperature after entering the heating preheating section circulation air of preheating heat exchanger 9, from condensate drain outlet C discharges；Refrigerant compression Machine 12, condenser 5, evaporator 6 and expansion valve 11 composition refrigeration system；Nitrogen storage tank 13, nitrogen relief valve 14, combustible gas sensing Device 15 and the composition automatic nitrogen-charging gas system of controller 16, the combustible gas concentration in equipment cavity is sensed when flammable gas sensor 15 When reaching predetermined value, by the output signal of controller 16, nitrogen relief valve 14 is opened, the nitrogen in nitrogen storage tank is rapidly filled with Whole equipment cavity, it is ensured that safety.

Claims (8)

1. a kind of energy-conservation microwave drying equipment, by blanking bin, foraminous conveyer, preheating section, microwave drying section, heat-insulated cavity, refrigeration System, residual neat recovering system, automatic nitrogen-charging gas system composition.When the microwave drying equipment works, material is brought into by transmission net Entering preheating section carries out pre-heating temperature elevation, and entering back into microwave drying section carries out rapid draing；Microwave steam first passes around precool heat exchanger device Cooling, then condensed water is cooled into by refrigeration system evaporator；Condensed water is reclaimed as intermediate medium by precool heat exchanger device Microwave steam heat, then preheating section circulation air is heated by preheating heat exchanger；Remaining warm drying after microwave steam condensation Air enters preheating section hot air circulating system, does not produce gas to discharge；The heat that condenser is produced in refrigeration system is used to add Hot preheating section circulation air；Automatic nitrogen-charging gas system is detecting equipment by combustible gas sensor, controller and relief valve Nitrogen charging gas shielded is carried out when combustible gas concentration reaches predetermined value in cavity automatically.
2. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：The equipment is by blanking bin, foraminous conveyer, guarantor Warm cavity, preheating section, microwave drying section, refrigeration system, residual neat recovering system, automatic nitrogen-charging gas system composition.
3. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：When the microwave drying equipment works, material Pre-heating temperature elevation is carried out into preheating section by foraminous conveyer, entering back into microwave drying section carries out rapid draing.
4. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：Microwave steam first passes around precool heat exchanger device Cooling, then condensed water is cooled into by refrigeration system evaporator.
5. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：Condensed water passes through precooling as intermediate medium Heat exchanger reclaims microwave steam heat, then heats preheating section circulation air by preheating heat exchanger.
6. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：It is remaining warm dry after microwave steam condensation Dry air enters preheating section hot air circulating system, does not produce gas to discharge.
7. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：The heat that condenser is produced in refrigeration system For heating preheating section circulation air.
8. energy-conservation microwave drying equipment according to claim 1, it is characterized in that：Automatic nitrogen-charging gas system passes through fuel gas Sensor, controller and relief valve carry out inflated with nitrogen guarantor automatically when combustible gas concentration reaches predetermined value in detecting equipment cavity Shield.
CN201710172632.XA 2017-03-22 2017-03-22 Energy-saving microwave drying equipment Pending CN106705571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710172632.XA CN106705571A (en) 2017-03-22 2017-03-22 Energy-saving microwave drying equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710172632.XA CN106705571A (en) 2017-03-22 2017-03-22 Energy-saving microwave drying equipment

Publications (1)

Publication Number Publication Date
CN106705571A true CN106705571A (en) 2017-05-24

Family

ID=58887237

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710172632.XA Pending CN106705571A (en) 2017-03-22 2017-03-22 Energy-saving microwave drying equipment

Country Status (1)

Country Link
CN (1) CN106705571A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107981397A (en) * 2017-12-29 2018-05-04 中国电子科技集团公司第十二研究所 A kind of vertical microwave drying bulking equipment
CN108030136A (en) * 2017-12-29 2018-05-15 中国电子科技集团公司第十二研究所 A kind of microwave drying bulking equipment
CN108332514A (en) * 2017-12-29 2018-07-27 中国电子科技集团公司第十二研究所 A kind of microwave drying system
CN109059423A (en) * 2018-06-19 2018-12-21 金寨县金银山农业科技开发有限公司 A kind of seed processing dehydration device with refrigerating function
CN111517310A (en) * 2020-04-26 2020-08-11 山东沃烯新材料科技有限公司 Popped device of continuous microwave of graphite alkene
CN111780493A (en) * 2020-07-07 2020-10-16 浙江恒冠化纤有限公司 Spinning section drying system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201878745U (en) * 2010-09-28 2011-06-29 罗兴红 Intelligent air energy tobacco baking equipment provided with wireless remote control device
CN102278869A (en) * 2011-06-27 2011-12-14 上海麦风微波设备有限公司 Microwave energy-saving environmentally-friendly drying method and device of coal slime, lignite and medium minerals
KR20130078828A (en) * 2011-12-30 2013-07-10 코오롱글로벌 주식회사 Medium temperature drying system
KR20130097402A (en) * 2012-02-24 2013-09-03 엄태경 Dryer of wet substance
CN103900355A (en) * 2014-03-12 2014-07-02 中国农业机械化科学研究院 Heat pump-microwave combined drying device
CN103940203A (en) * 2014-03-28 2014-07-23 中国农业大学 Microwave heat pump low-oxygen drying device and operating method thereof
CN105588420A (en) * 2014-10-23 2016-05-18 哈尔滨派腾农业科技有限公司 Moisture removal equipment adopting microwave heat source in agricultural production
CN205580174U (en) * 2016-05-04 2016-09-14 吴清标 Energy -efficient heat pump drying -machine of recoverable liquid that volatilizees
CN206683312U (en) * 2017-03-22 2017-11-28 范铁钢 One kind energy-conservation microwave drying equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201878745U (en) * 2010-09-28 2011-06-29 罗兴红 Intelligent air energy tobacco baking equipment provided with wireless remote control device
CN102278869A (en) * 2011-06-27 2011-12-14 上海麦风微波设备有限公司 Microwave energy-saving environmentally-friendly drying method and device of coal slime, lignite and medium minerals
KR20130078828A (en) * 2011-12-30 2013-07-10 코오롱글로벌 주식회사 Medium temperature drying system
KR20130097402A (en) * 2012-02-24 2013-09-03 엄태경 Dryer of wet substance
CN103900355A (en) * 2014-03-12 2014-07-02 中国农业机械化科学研究院 Heat pump-microwave combined drying device
CN103940203A (en) * 2014-03-28 2014-07-23 中国农业大学 Microwave heat pump low-oxygen drying device and operating method thereof
CN105588420A (en) * 2014-10-23 2016-05-18 哈尔滨派腾农业科技有限公司 Moisture removal equipment adopting microwave heat source in agricultural production
CN205580174U (en) * 2016-05-04 2016-09-14 吴清标 Energy -efficient heat pump drying -machine of recoverable liquid that volatilizees
CN206683312U (en) * 2017-03-22 2017-11-28 范铁钢 One kind energy-conservation microwave drying equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107981397A (en) * 2017-12-29 2018-05-04 中国电子科技集团公司第十二研究所 A kind of vertical microwave drying bulking equipment
CN108030136A (en) * 2017-12-29 2018-05-15 中国电子科技集团公司第十二研究所 A kind of microwave drying bulking equipment
CN108332514A (en) * 2017-12-29 2018-07-27 中国电子科技集团公司第十二研究所 A kind of microwave drying system
CN109059423A (en) * 2018-06-19 2018-12-21 金寨县金银山农业科技开发有限公司 A kind of seed processing dehydration device with refrigerating function
CN111517310A (en) * 2020-04-26 2020-08-11 山东沃烯新材料科技有限公司 Popped device of continuous microwave of graphite alkene
CN111517310B (en) * 2020-04-26 2021-06-01 山东沃烯新材料科技有限公司 Popped device of continuous microwave of graphite alkene
CN111780493A (en) * 2020-07-07 2020-10-16 浙江恒冠化纤有限公司 Spinning section drying system

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Application publication date: 20170524