EP0036102A2 - Dispositif de séchage - Google Patents

Dispositif de séchage Download PDF

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Publication number
EP0036102A2
EP0036102A2 EP81101261A EP81101261A EP0036102A2 EP 0036102 A2 EP0036102 A2 EP 0036102A2 EP 81101261 A EP81101261 A EP 81101261A EP 81101261 A EP81101261 A EP 81101261A EP 0036102 A2 EP0036102 A2 EP 0036102A2
Authority
EP
European Patent Office
Prior art keywords
fluidized bed
vapors
drying system
heat exchanger
hot gas
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.)
Granted
Application number
EP81101261A
Other languages
German (de)
English (en)
Other versions
EP0036102B1 (fr
EP0036102A3 (en
Inventor
Werner Dipl.-Ing. Poersch
Horst Ing. Grad. Sauter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grenzebach GmbH and Co KG
Original Assignee
Babcock BSH AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock BSH AG filed Critical Babcock BSH AG
Publication of EP0036102A2 publication Critical patent/EP0036102A2/fr
Publication of EP0036102A3 publication Critical patent/EP0036102A3/de
Application granted granted Critical
Publication of EP0036102B1 publication Critical patent/EP0036102B1/fr
Expired 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
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/25—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure

Definitions

  • the present invention relates to a drying system with a hot gas dryer fed from a fluidized bed furnace with hot gas.
  • the aim of the present invention is now to perfect a drying system of the type mentioned at the outset in such a way that a high utilization of the thermal energy which is produced is possible with little combustion effort.
  • An additional reheating of the back vapors is achieved according to the invention in that a part of the back vapors is guided parallel to it via a heat exchanger introduced into the hot bed pocket of the fluidized bed.
  • a mixer can be arranged between the fluidized bed furnace and the hot gas dryer, in which the gases coming from the exhaust gas space of the fluidized bed furnace are mixed with the back vapors reheated in the heat exchanger.
  • the mixing ratio of the exhaust gases and back vapors can advantageously be adjustable via control devices.
  • a dust separator 3 of conventional design is connected between the hot gas dryer 1 and the fan 2.
  • the vapors can be partially discharged into the open (arrow 5) via an adjustable branch 4 or returned as vapors (arrow 6) by means of a fan 7 through the tubular windings of a heat exchanger 8, which is arranged in the fluidized bed 9 of a fluidized bed furnace 10, to the entrance of the hot gas dryer 1 will.
  • the return vapors first reach a mixer 11 arranged between the fluidized bed furnace 10 and the hot gas dryer 1, which is also connected to the exhaust gas space 13 of the fluidized bed furnace 10 via a further dust separator 12.
  • the feed lines to the mixer 11 are provided with regulating devices 14, 15 of known design, which allow the setting of a predetermined mixing ratio, e.g. 1: 1, allow.
  • the amount of air required to whirl up and maintain the combustion is supplied to the fluidized bed furnace 10 via the fan 16. It is driven with a minimal excess of air, since the construction volume of the fluidized bed furnace 10 and all auxiliary units, such as fuel distribution devices and flue gas dedusting, can be kept as small as possible.
  • the fuel supply for the fluidized bed combustion system 10 is indicated by the arrow 17. Coal is preferably used as fuel.
  • the return vapor supply and the heat exchanger 8 are designed in such a way that the return vapor receives approximately the same temperature as the exhaust gases from the fluidized bed furnace 10.
  • the drying system described above is suitable, for example, for drying beet pulp.
  • the dust separator 12 and the mixer 11 can be omitted from the arrangement according to FIG. 1, as shown in the arrangement according to FIG. 2.
  • a good mixture of the flue gases from the fluidized bed furnace 10 with the return vapors from the heat exchangers 8 or 8 ' is then achieved if the tubes of these heat exchangers in the exhaust gas space 13 of the fluidized bed furnace 10, that is to say above the fluidized bed 9, end.
  • the fuel particles discharged from the fluidized bed 9 with the flue gas are largely re-burned.
  • part 6 ′′ of the back vapors is led into the exhaust gas space 13 through a heat exchanger 8 ′ located in the hot bed ash 18, which is drawn off from the fluidized bed 9, for example via the pipes 19 the vapors are reheated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)
EP81101261A 1980-03-13 1981-02-21 Dispositif de séchage Expired EP0036102B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803009565 DE3009565A1 (de) 1980-03-13 1980-03-13 Trocknungsanlage
DE3009565 1980-03-13

Publications (3)

Publication Number Publication Date
EP0036102A2 true EP0036102A2 (fr) 1981-09-23
EP0036102A3 EP0036102A3 (en) 1981-10-14
EP0036102B1 EP0036102B1 (fr) 1983-02-23

Family

ID=6097034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101261A Expired EP0036102B1 (fr) 1980-03-13 1981-02-21 Dispositif de séchage

Country Status (2)

Country Link
EP (1) EP0036102B1 (fr)
DE (2) DE3009565A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192978A (en) * 1986-07-12 1988-01-27 Mckechnie Metals Ltd Process for drying swarf or other small items contaminated with volatile substances
RU2267068C2 (ru) * 2001-03-26 2005-12-27 Паюсов Михаил Алексеевич Теплогенератор
WO2008137691A3 (fr) * 2007-05-03 2009-06-11 Archer Daniels Midland Co Système d'utilisation de chaleur pour traiter un produit agricole, système de combustion à lit fluidisé et leurs procédés de mise en application
RU2386905C1 (ru) * 2008-08-25 2010-04-20 Михаил Самуилович Гофман Теплогенератор
CN101701763B (zh) * 2009-11-24 2011-03-16 山东天力干燥设备有限公司 正压燃烧装置及其工艺
CN103075739A (zh) * 2005-06-06 2013-05-01 艾默生过程管理电力和水力解决方案有限公司 利用统计过程控制来控制烟灰吹除的方法和装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608248C1 (en) * 1986-03-12 1987-08-13 Steinmueller Gmbh L & C Method of generating hot gas and hot-gas generator for implementing the method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589313A (en) * 1968-08-30 1971-06-29 Us Health Education & Welfare Solid waste disposal method and apparatus
US3779181A (en) * 1972-08-30 1973-12-18 Awt Systems Inc Fluid bed dryer and heat exchange system
US3805715A (en) * 1972-10-26 1974-04-23 Atomic Energy Commission Method for drying sludge and incinerating odor bodies
DE2412446A1 (de) * 1974-03-15 1975-09-18 Vits Maschinenbau Gmbh Trockner fuer eine durchlaufende warenbahn
DE2616347C3 (de) * 1976-04-14 1983-12-01 Vits-Maschinenbau Gmbh, 4018 Langenfeld Durchlauftrockner für Warenbahnen
US4096909A (en) * 1976-12-23 1978-06-27 Dorr-Oliver Incorporated Fluidized bed process heater
DE2727971C2 (de) * 1977-06-22 1983-07-14 Brückner-Apparatebau GmbH, 6120 Erbach Verfahren zur thermischen Behandlung einer Warenbahn
DE2812966C2 (de) * 1978-03-23 1986-06-19 Brückner-Apparatebau GmbH, 6120 Erbach Verfahren zur thermischen Behandlung einer Warenbahn
DE2802907A1 (de) * 1978-01-24 1979-07-26 Frings Naberschulte Gerd Anlage zur waermerueckgewinnung an malzdarren
CH641133A5 (de) * 1979-05-28 1984-02-15 Escher Wyss Ag Verfahren zum verarbeiten von klaerschlamm.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192978A (en) * 1986-07-12 1988-01-27 Mckechnie Metals Ltd Process for drying swarf or other small items contaminated with volatile substances
GB2192978B (en) * 1986-07-12 1990-07-18 Mckechnie Metals Ltd Process for drying swarf or other small items contaminated with volatile substances
RU2267068C2 (ru) * 2001-03-26 2005-12-27 Паюсов Михаил Алексеевич Теплогенератор
CN103075739A (zh) * 2005-06-06 2013-05-01 艾默生过程管理电力和水力解决方案有限公司 利用统计过程控制来控制烟灰吹除的方法和装置
CN103075739B (zh) * 2005-06-06 2015-12-23 艾默生过程管理电力和水力解决方案有限公司 利用统计过程控制来控制烟灰吹除的方法和装置
WO2008137691A3 (fr) * 2007-05-03 2009-06-11 Archer Daniels Midland Co Système d'utilisation de chaleur pour traiter un produit agricole, système de combustion à lit fluidisé et leurs procédés de mise en application
AU2008247574B2 (en) * 2007-05-03 2012-03-22 Archer-Daniels-Midland Company A system for using heat to process an agricultural product, a fluidized bed combustor system, and methods of employing the same
RU2386905C1 (ru) * 2008-08-25 2010-04-20 Михаил Самуилович Гофман Теплогенератор
CN101701763B (zh) * 2009-11-24 2011-03-16 山东天力干燥设备有限公司 正压燃烧装置及其工艺

Also Published As

Publication number Publication date
EP0036102B1 (fr) 1983-02-23
DE3009565A1 (de) 1981-09-24
DE3160080D1 (en) 1983-03-31
EP0036102A3 (en) 1981-10-14

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