EP0059858B1 - Verfahren und Vorrichtung zum Trocknen von Feststoffpartikeln insbesondere feinkörnigen Feststoffpartikeln - Google Patents

Verfahren und Vorrichtung zum Trocknen von Feststoffpartikeln insbesondere feinkörnigen Feststoffpartikeln Download PDF

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Publication number
EP0059858B1
EP0059858B1 EP82101162A EP82101162A EP0059858B1 EP 0059858 B1 EP0059858 B1 EP 0059858B1 EP 82101162 A EP82101162 A EP 82101162A EP 82101162 A EP82101162 A EP 82101162A EP 0059858 B1 EP0059858 B1 EP 0059858B1
Authority
EP
European Patent Office
Prior art keywords
solid particles
sieve drum
drum
gas
sieve
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
Application number
EP82101162A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0059858A1 (de
Inventor
Günther Hultsch
Siegfried Baumgärtner
Harald Bock
Reinhold Dipl.-Ing. Schilp
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei 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 Krauss Maffei AG filed Critical Krauss Maffei AG
Publication of EP0059858A1 publication Critical patent/EP0059858A1/de
Application granted granted Critical
Publication of EP0059858B1 publication Critical patent/EP0059858B1/de
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
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
    • F26B7/007—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00 centrifugal fluidised beds

Definitions

  • the invention relates to a method and an apparatus for drying solid particles, in particular fine-grain solid particles according to DE-A 19 10 003 or DE-A 26 22 565.
  • Such centrifugal fluid bed dryers are thus known with a horizontal and vertical drum axis, whereby in the case of a vertical drum axis, the solid particles to be dried are introduced into the screening drum from above, but only flow radially outwards at their lower end and form a circular fluidized bed moving from bottom to top. The dry solid particles are discharged at the top of the sieve drum.
  • a high centrifugal acceleration requires a correspondingly high pressure of the drying air to form the fluidized bed, so that the fluidized bed cannot be formed in a system designed for certain conditions by increasing the drum speed.
  • the object of the invention is to ensure or improve the conveyance of the solid particles in the centrifugal fluid bed, in particular when the system is started up.
  • Claim 2 specifies a further measure to make the starting process easier, whereby a rapid distribution of the solid particles occurs in the axial direction. A further exploitation of the free fall of the solid particles takes place according to claim 3.
  • a device for carrying out the method steps discussed so far specifies claim 4.
  • the promotion of solid particles is supported by a downward gas flow.
  • the measures according to claims 6 and 7 are expedient.
  • Claims 8 and 9 relate in particular to claim 4 and show how a separating device connects in an advantageous manner to the bottom of the screening drum. Irrespective of this, other separation devices can be used if the mixture to be separated is discharged tangentially from the housing below the sieve drum through a pipe socket.
  • FIG. 1 an upwardly concave distributor plate 3 is located under an inlet tube 1 with a filling funnel 2. This is via supports 4 with the upper, upwardly tapering part 5 of a sieve drum 6 attached.
  • the lower part of the vertically arranged screen drum 6 is designed as a cylindrical screen jacket 7.
  • a hub 8 is fastened, which is seated on a hollow shaft 13 which is mounted in a bearing housing 9 and can be driven by a motor 10 via a belt 11 and a pulley 12.
  • the bearing housing 9 as well as a bracket 14 carrying the entry tube 1 are fastened on a drum housing 15.
  • a drum chamber 18 is divided by horizontal dividing walls 16 and 17 over the longitudinal extension of the screen drum 6, through which the drying gas is supplied via a nozzle 19 which is tangentially brought to the housing 15 (arrow 20).
  • the drying gas enters the rotating sieve drum 6 via bores 21 and 22 and forms a fluidized bed moving from top to bottom with the solid particles introduced from above via the feed tube 1 in the fluidized space 25.
  • a radially inwardly projecting rim 24 is provided, through which the dry material flows.
  • the separation space 23 the dried solid particles are thrown against the wall of the housing 15, slide down there and are preferably discharged via a cell wheel under a discharge nozzle 26.
  • the drying gas is blown out of the housing 15 through a curved exhaust pipe 27.
  • the parts with the reference numerals 1 to 22, and 24 to 26 are formed like the parts of FIG. 1.
  • adjoining the rim ring 24 is a downwardly widening guide surface 28 and also a downwardly tapering guide surface 29, between which there is a cylindrical ring part 30 with ribs 31 projecting radially inwards.
  • Gas pipe 32 has a funnel 33 at the upper end, which is arranged so that the dried solid particles, which fall down on the walls of the guide surfaces 28 and 29 and the ring part 30 and are accelerated by the ribs 31 in the circumferential direction thereof, by the Annular gap 35. between the outer wall of the funnel 33 and the inner wall of the guide surface 29 pass down into the housing space 34, from where they are discharged via the discharge nozzle 26, while the drying gas is blown off through the exhaust pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
EP82101162A 1981-03-11 1982-02-17 Verfahren und Vorrichtung zum Trocknen von Feststoffpartikeln insbesondere feinkörnigen Feststoffpartikeln Expired EP0059858B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109140A DE3109140C2 (de) 1981-03-11 1981-03-11 Vorrichtung zum Trocknen von insbesondere feinkörnigen Feststoffpartikeln
DE3109140 1981-03-11

Publications (2)

Publication Number Publication Date
EP0059858A1 EP0059858A1 (de) 1982-09-15
EP0059858B1 true EP0059858B1 (de) 1984-05-02

Family

ID=6126858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101162A Expired EP0059858B1 (de) 1981-03-11 1982-02-17 Verfahren und Vorrichtung zum Trocknen von Feststoffpartikeln insbesondere feinkörnigen Feststoffpartikeln

Country Status (5)

Country Link
US (1) US4461093A (enrdf_load_stackoverflow)
EP (1) EP0059858B1 (enrdf_load_stackoverflow)
JP (1) JPS57164275A (enrdf_load_stackoverflow)
DE (1) DE3109140C2 (enrdf_load_stackoverflow)
DK (1) DK103682A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430127C2 (de) * 1984-08-16 1987-04-02 Krauss-Maffei AG, 8000 München Vorrichtung zum Trocknen von feinkörnigen Feststoffpartikeln
US5352712A (en) * 1989-05-11 1994-10-04 Borden, Inc. Ultraviolet radiation-curable coatings for optical fibers
US5020239A (en) * 1990-06-08 1991-06-04 Wenger Manufacturing, Inc. Air suspension enrober
US5611150A (en) * 1996-05-23 1997-03-18 The Conair Group, Inc. Centrifugal pellet dryer
RU2264589C1 (ru) * 2004-04-01 2005-11-20 Институт Катализа Им. Г.К. Борескова Сибирского Отделения Российской Академии Наук Способ и устройство для импульсной тепловой обработки сыпучих материалов
DE102005023258A1 (de) * 2004-11-16 2006-11-23 Fan Separator Gmbh Drehtrommel zur aeroben Erwärmung rieselfähiger Feststoffe
GB2534159B (en) * 2015-01-14 2017-08-30 Clyde Process Ltd Apparatus for drying conveyed material
CN105043023A (zh) * 2015-07-07 2015-11-11 苏州赛弗尔机械有限公司 简易离心干燥机
CN108240762A (zh) * 2018-03-06 2018-07-03 嘉兴希卡姆复合材料有限公司 一种改性复合材料颗粒干燥装置
CN111854335A (zh) * 2020-07-30 2020-10-30 李国安 一种悬浮式粉体烘干机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254867A (en) * 1937-10-11 1941-09-02 Extractol Process Ltd Process for continuous treatment of exhausted solvent-impregnated solid agglutinative organic material
US3500552A (en) * 1968-03-07 1970-03-17 Us Agriculture Method and apparatus for drying foods
US3600817A (en) * 1969-11-28 1971-08-24 Siemens Ag Processing apparatus for effecting interaction between, and subsequent separation or gaseous and solid or liquid particulate substances
DE2622565C3 (de) * 1976-05-20 1982-11-04 Krauss-Maffei AG, 8000 München Vorrichtung zum Trocknen von Feststoffpartikeln im Wirbelschichtverfahren

Also Published As

Publication number Publication date
DE3109140A1 (de) 1982-09-23
JPH0421113B2 (enrdf_load_stackoverflow) 1992-04-08
DE3109140C2 (de) 1986-11-06
US4461093A (en) 1984-07-24
EP0059858A1 (de) 1982-09-15
JPS57164275A (en) 1982-10-08
DK103682A (da) 1982-09-12

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