WO2006040610A1 - Refroidisseur pour refroidir un materiau particulaire chaud - Google Patents

Refroidisseur pour refroidir un materiau particulaire chaud Download PDF

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Publication number
WO2006040610A1
WO2006040610A1 PCT/IB2004/003349 IB2004003349W WO2006040610A1 WO 2006040610 A1 WO2006040610 A1 WO 2006040610A1 IB 2004003349 W IB2004003349 W IB 2004003349W WO 2006040610 A1 WO2006040610 A1 WO 2006040610A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooler
bed
cooling
supporting surface
displacement means
Prior art date
Application number
PCT/IB2004/003349
Other languages
English (en)
Other versions
WO2006040610A8 (fr
Inventor
Mogens Juhl FÖNS
Original Assignee
F.L. Smidth A/S
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 F.L. Smidth A/S filed Critical F.L. Smidth A/S
Priority to PCT/IB2004/003349 priority Critical patent/WO2006040610A1/fr
Publication of WO2006040610A1 publication Critical patent/WO2006040610A1/fr
Publication of WO2006040610A8 publication Critical patent/WO2006040610A8/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/38—Arrangements of cooling devices

Definitions

  • the present invention relates to a cooler for cooling hot particulate material which has been subjected to heat treatment in an industrial furnace such as a rotary kiln for manufacturing cement clinker, which cooler comprises a supporting surface for supporting a bed of material, said supporting surface being made up of a number of elongated, parallel conveying lanes which can be moved back and forth in their longitudinal direction, and being jointly moved in the direction of conveyance of the material and individually or in groups in the opposite direction, and an underlying compartment from which cooling air is led up through gaps in the supporting surface for cooling the hot bed of material.
  • coolers for cooling hot particulate material utilizing this principle of conveyance.
  • the conveying efficiency in such coolers has proved to be excellent.
  • the mentioned principle of conveyance has shown to involve a serious problem in that hot clinker material is sticking together and forming even very large lumps of hot material, which will significantly decrease the cooling efficiency of the cooler since the cooling airflow is unable to penetrate and cool these lumps, with the airflow instead being diverted relative to such lumps.
  • the cooling efficiency will be significantly improved since the clinker material is prevented from sticking together to form large lumps. This is due to the fact that any early-stage formations of lumps will be stopped in that the bed of material is locally subjected to vertical displacements, thereby breaking up agglomerated pieces of material.
  • the means for providing local, vertical displacements in the bed of material may in principle be made up of any appropriate means which will subject the bed of material to the desired influences.
  • the displacement means may thus be made up of bars or plates extending crosswise to the direction of movement of the material and protruding into the bed of material.
  • the displacement means in the form of bars or plates may either be stationary and attached to the stationary machine frame of the cooler or they may be fixed to the conveying lanes. If the displacement means are stationary, they will provide the desired vertical displacement of the material when the conveying lanes are jointly moved in the direction of transport of the material.
  • the displacement means are fixed to the conveying lanes, thus following the movement of the latter, they will provide the desired vertical displacement of the material when the conveying lanes are moved individually or in groups in the opposite direction relative to the direction of transport of the material. In the latter case it is preferred that the maximum length of the displacement means is equal to the width of the conveying lanes.
  • the displacement means project at least 10 mm into the bed of material, preferentially between 10 and 100 mm and most preferentially between 20 and 50 mm.
  • Fig. 1 shows a side view of a cooler according to the invention
  • Fig. 2 shows a sectional view through the cooler shown in Fig. 1.
  • a cooler 1 which is installed in direct extension of a rotary kiln 2 for manufacturing cement clinker.
  • the cooler comprises an inlet end 3, an outlet end 4, end walls 5, 6, a bottom 9, a ceiling 10, an underlying compartment 11 , a fan 12 for supplying air to the compartment 11 and a supporting surface 13 for receiving and supporting the hot material 24 which is to be cooled.
  • the supporting surface 13 is made up of a number of elongated, parallel conveying lanes 14-19 capable of being moved back and forth in their longitudinal direction, and being moved jointly in the direction of transport of the material, indicated by the arrow 17, and individually or in groups in the opposite direction.
  • the cooling air is led up through gaps, not shown, in the supporting surface 13 for cooling the hot bed of material 24.
  • the cooler comprises means for providing local, vertical displacements in the bed of material 24.
  • these displacement means are made up of plates 22 which are fixed to the conveying lanes 14-19, and extending approximately across the entire width of each of these lanes.
  • the plates 22 will provide vertical displacements of the material during the retraction of the conveying lanes, thereby causing any agglomerated lumps of material to be disintegrated into smaller pieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un refroidisseur (1) pour refroidir un matériau particulaire chaud, qui a été soumis à un traitement thermique dans un four industriel, comme un four rotatif (2) pour produire du clinker. Ledit refroidisseur (1) comprend une surface d'appui (13) pour soutenir un lit (24) de matériau. Ladite surface d'appui (13) étant faite d'un nombre de pistes de transport (14 à 19) parallèles allongées, qui peuvent être déplacées vers l'arrière et vers l'avant dans leur direction longitudinale et sont déplacées conjointement dans le sens de déplacement du matériau et individuellement ou en groupes, dans la direction opposée. Il est également prévu un compartiment sous-jacent (11) d'où l'air de refroidissement est guidé vers le haut à travers les espaces de la surface d'appui (13) pour refroidir le lit chaud de matériau. Le refroidisseur se caractérise en ce qu'il comprend des moyens (22) pour fournir des déplacements verticaux et locaux dans le lit du matériau. Il en résulte que l'efficacité de refroidissement sera sensiblement améliorée, étant donné que le matériau clinker est empêché de s'agglutiner pour former de grosses boules, ce qui est dû au fait que toute formation de boules à un stade précoce sera arrêtée de sorte que le lit de matériau est soumis localement à des déplacements verticaux, ce qui fragmente des pièces de matériau agglomérées.
PCT/IB2004/003349 2004-10-13 2004-10-13 Refroidisseur pour refroidir un materiau particulaire chaud WO2006040610A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2004/003349 WO2006040610A1 (fr) 2004-10-13 2004-10-13 Refroidisseur pour refroidir un materiau particulaire chaud

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2004/003349 WO2006040610A1 (fr) 2004-10-13 2004-10-13 Refroidisseur pour refroidir un materiau particulaire chaud

Publications (2)

Publication Number Publication Date
WO2006040610A1 true WO2006040610A1 (fr) 2006-04-20
WO2006040610A8 WO2006040610A8 (fr) 2007-03-01

Family

ID=36148081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/003349 WO2006040610A1 (fr) 2004-10-13 2004-10-13 Refroidisseur pour refroidir un materiau particulaire chaud

Country Status (1)

Country Link
WO (1) WO2006040610A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776268A (zh) * 2013-12-30 2014-05-07 内蒙古蒙西鄂尔多斯铝业有限公司 一种粉煤灰氧化铝熟料高温冷却设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994026638A1 (fr) * 1993-05-10 1994-11-24 Paques B.V. Installation de transport sous forme de tapis roulant
DE19651741A1 (de) * 1996-12-12 1998-06-18 Linde Ag Verfahren und Vorrichtung zum Kühlen und/oder Gefrieren von Gut
WO1998048231A1 (fr) * 1997-04-22 1998-10-29 F. L. Smidth & Co. A/S Dispositif servant a refroidir un materiau en particules
WO2000031483A1 (fr) * 1998-11-25 2000-06-02 F.L. Smidth & Co. A/S Refroidisseur de materiau particulaire
WO2001077600A1 (fr) * 2000-04-12 2001-10-18 Polysius Ag Dispositif de refroidissement et procede de refroidissement de matieres en vrac chaudes
WO2002075230A1 (fr) * 2001-03-20 2002-09-26 Claudius Peters Technologies Gmbh Procede et dispositif pour traiter un produit en vrac

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994026638A1 (fr) * 1993-05-10 1994-11-24 Paques B.V. Installation de transport sous forme de tapis roulant
DE19651741A1 (de) * 1996-12-12 1998-06-18 Linde Ag Verfahren und Vorrichtung zum Kühlen und/oder Gefrieren von Gut
WO1998048231A1 (fr) * 1997-04-22 1998-10-29 F. L. Smidth & Co. A/S Dispositif servant a refroidir un materiau en particules
WO2000031483A1 (fr) * 1998-11-25 2000-06-02 F.L. Smidth & Co. A/S Refroidisseur de materiau particulaire
WO2001077600A1 (fr) * 2000-04-12 2001-10-18 Polysius Ag Dispositif de refroidissement et procede de refroidissement de matieres en vrac chaudes
WO2002075230A1 (fr) * 2001-03-20 2002-09-26 Claudius Peters Technologies Gmbh Procede et dispositif pour traiter un produit en vrac

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776268A (zh) * 2013-12-30 2014-05-07 内蒙古蒙西鄂尔多斯铝业有限公司 一种粉煤灰氧化铝熟料高温冷却设备
CN103776268B (zh) * 2013-12-30 2015-09-30 内蒙古蒙西鄂尔多斯铝业有限公司 一种粉煤灰氧化铝熟料高温冷却设备

Also Published As

Publication number Publication date
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