EP1060356B1 - Plaque de grille pour refroidisseur - Google Patents
Plaque de grille pour refroidisseur Download PDFInfo
- Publication number
- EP1060356B1 EP1060356B1 EP99906231A EP99906231A EP1060356B1 EP 1060356 B1 EP1060356 B1 EP 1060356B1 EP 99906231 A EP99906231 A EP 99906231A EP 99906231 A EP99906231 A EP 99906231A EP 1060356 B1 EP1060356 B1 EP 1060356B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- transverse
- plate according
- gill
- cooling 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.)
- Expired - Lifetime
Links
Images
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
- F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates
Definitions
- the present invention relates to a grid plate for a bulk material cooler coming out of an oven and having overall the shape of an upturned box with a load-bearing surface for support and advance a layer of material to be cooled using a cooling gas passing through said plate.
- Such coolers are used in particular in cement works for cooling the clinker at the outlet of the oven.
- These plates are grouped in transverse rows the front parts of which overlap with the rear parts of the rows preceding them to form a staircase cooling plan.
- the progression of matter to cooling is generally ensured by an alternative arrangement of fixed rows and movable rows, the latter being animated by a back and forth movement in the direction of the progression of the material.
- plates which have non-overlapping pockets in the front and which are therefore directly in contact with the material. In se filling, these pockets form matter-matter interfaces which should reduce abrasion wear since material cooled stays in these pockets and protects them from matter hot in motion.
- a plaque of this kind is described in the document EP 0 337 383 B1.
- the exposed surfaces between the pockets remain quite large.
- the path of the cooling gas is labyrinthine, which causes a pressure drop and a decrease in the cooling capacity of the material and the the plaque. The result is that ultimately the pocket plates have a service life which is hardly longer than that of the plates to smooth surface.
- Document DE 41 03 866 describes a grid plate which comprises a corrugated surface with air passage openings from cooling in the corrugations.
- This plate has the disadvantage that the material to be cooled slides quickly over the undulations which fact, are exposed to strong abrasion. In addition, the plate is not sufficiently cooled by the cooling air.
- the object of the present invention is to provide a new plate grate for cooler which allows more efficient cooling, both the material to be cooled and the plate itself and, for example therefore, a longer service life.
- the present invention provides a plate cooler according to claim 1.
- the surfaces directly exposed to wear are small and limit to the edge of the plate as well as to the upper edges of the fins, the rest being protected by the material remaining in the cavities forming matter-matter interfaces.
- each fin is preferably in shape of transverse vertical rib.
- the plane of the part made up of fins can be upwardly sloping with respect to the plane of the rear smooth part of the plate.
- the plate shown in Figures 1 and 2 has a upper surface 10 which ends at the front with a front edge vertical 12.
- the upper surface 10 comprises a smooth zone 10a to the rear which is engaged under the front area of the back plate not shown, as well as a zone 10b at the front located above of the rear zone 10a of the plate located in front. Therefore, when the plates are grouped in successive rows, this are essentially the areas 10b that are exposed to the material to cool, the zones 10 being only partially during the back and forth movement.
- the zone 10b is slightly inclined upwardly sloping in the direction of material progression, by with respect to the plane of the rear zone 10a.
- the invention however applies also when the two zones 10a and 10b are in the same plan.
- the front zone 10b is consisting of several oblique 14 overlapping fins extending transversely between the longitudinal edges 16 and 18. These fins define between them transverse cavities 20 retaining the matter to be cooled and thus forming matter-matter interfaces.
- the overlapping parts of two adjacent fins 14 define narrow and elongated gas passage channels 22 of cooling. Between the channels 22, the fins 14 can be interconnected.
- Each fin 14 also has, on its underside, a transverse rib 24 with rounded edge defining with the edge rounding of the previous fin 14 a vertical entry in each channel 22 as well as a bend in the channel with gentle curvature.
- This shape channels 22 ensures perfect guidance of the cooling gases with minimum pressure drop.
- the number of fins 14 as well as the number of channels can vary with the size of the plates.
- each fin 14 can be formed in the form of a transverse vertical rib 26. These ribs 26 slow down the progress of the material and thus improve its cooling.
- the front edge 28 of the first fin 14 is rounded and forms also the front edge of the plate.
- the front edge 12 of each plate also includes 30 gas outlet openings cooling.
Description
- la figure 1 représente une vue en perspective d'une plaque selon la présente invention et
- la figure 2 est une coupe longitudinale à travers la plaque suivant un plan de coupe traversant un canal de passage du gaz de refroidissement.
Claims (5)
- Plaque de grille pour un refroidisseur de matières en vrac sortant d'un four et ayant globalement la forme d'un caisson retourné avec une surface porteuse (10) pour supporter et faire avancer une couche de matière à refroidir à l'aide d'un gaz de refroidissement traversant ladite plaque, et la partie avant (10b) de la plaque, vue dans le sens de progression de la matière, est constituée d'ailettes (14) chevauchantes inclinées à pente montante définissant des cavités transversales (20) dans la surface porteuse, en ce que les parties chevauchantes de deux ailettes voisines (14) définissent des canaux étroits (22) de passage du gaz de refroidissement caractérisé en ce que lesdits canaux (22) ont une section longitudinale en forme de coude arrondi avec un angle inférieur à 90° débouchant verticalement dans la face inférieure de la surface porteuse et obliquement dans le fond de chaque cavité (20).
- Plaque selon la revendication 1, caractérisée en ce que chaque ailette (14) comporte, sur sa surface inférieure, une nervure transversale (24) à bord arrondi qui définit avec le bord arrière arrondi de l'ailette précédente une entrée verticale dans chaque canal (22).
- Plaque selon la revendication 1, caractérisée en ce que le bord frontal supérieur de chaque ailette (14) est en forme de nervure verticale transversale (26).
- Plaque selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le plan de la partie (10b) constitué d'ailettes (14) est en pente montante par rapport au plan de la partie lisse arrière (10a) de la plaque.
- Plaque selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le côté transversal avant (12) de la plaque est vertical et comporte des bouches (30) de sortie du gaz de refroidissement.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9800143A BE1011760A3 (fr) | 1998-02-24 | 1998-02-24 | Plaque de grille pour un refroidisseur. |
BE9800143 | 1998-02-24 | ||
PCT/EP1999/000935 WO1999044001A1 (fr) | 1998-02-24 | 1999-02-09 | Plaque de grille pour refroidisseur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1060356A1 EP1060356A1 (fr) | 2000-12-20 |
EP1060356B1 true EP1060356B1 (fr) | 2002-06-12 |
Family
ID=3891119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99906231A Expired - Lifetime EP1060356B1 (fr) | 1998-02-24 | 1999-02-09 | Plaque de grille pour refroidisseur |
Country Status (11)
Country | Link |
---|---|
US (1) | US6290493B1 (fr) |
EP (1) | EP1060356B1 (fr) |
AU (1) | AU2623699A (fr) |
BE (1) | BE1011760A3 (fr) |
BR (1) | BR9907685A (fr) |
DE (1) | DE69901801T2 (fr) |
ES (1) | ES2177241T3 (fr) |
ID (1) | ID28084A (fr) |
PT (1) | PT1060356E (fr) |
TR (1) | TR200002208T2 (fr) |
WO (1) | WO1999044001A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6405661B1 (en) * | 2001-03-22 | 2002-06-18 | New York State Electric & Gas Corporation | Combustion enhancing air foil |
DE10117225A1 (de) * | 2001-04-06 | 2002-10-10 | Bmh Claudius Peters Gmbh | Kühlrost für einen Schüttgutkühler |
JP3404490B1 (ja) * | 2002-05-27 | 2003-05-06 | 電気化学工業株式会社 | 可動火格子 |
DE102007019530C5 (de) * | 2007-04-25 | 2018-01-04 | Alite Gmbh | Verfahren und Einrichtung zum Kühlen einer auf einem Förderrost liegenden Schüttgutschicht |
BE1019360A3 (fr) * | 2010-06-03 | 2012-06-05 | Magotteaux Int | Plaque de grille. |
DE102011080998B4 (de) * | 2011-08-16 | 2016-07-14 | IKN GmbH Ingenieurbüro-Kühlerbau-Neustadt | Kühlrost und Rostsegment zum Kühlen von Zementklinker |
DE102014008010B4 (de) * | 2014-06-05 | 2018-11-29 | Khd Humboldt Wedag Gmbh | Rostplatte für einen Rostkühler |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT8221044V0 (it) * | 1982-03-05 | 1982-03-05 | F G S Fonderia Ghise E Acciai | Piastre per trasportatori e raffreddatori di materiali granulari caldi. |
FR2543116B1 (fr) * | 1983-03-24 | 1985-07-26 | Gatx Fuller Sa | Plaque pour transporteur du type oscillant et transporteur correspondant |
DE3332592C1 (de) * | 1983-09-08 | 1985-05-15 | Karl von Dipl.-Ing. Dipl.-Wirtsch.-Ing. 3057 Neustadt Wedel | Aus Rostelementen zusammengesetzter Rostboden fuer Schuettgueter,wie Zementklinker |
DE4039015A1 (de) * | 1990-12-04 | 1992-06-11 | Zementanlagen Und Maschinenbau | Rostplatte |
DE4103866A1 (de) * | 1991-02-07 | 1992-08-13 | Zementanlagen Und Maschinenbau | Rostplatte |
DE19537904A1 (de) * | 1995-06-28 | 1997-01-02 | Krupp Polysius Ag | Rostplatte |
-
1998
- 1998-02-24 BE BE9800143A patent/BE1011760A3/fr not_active IP Right Cessation
-
1999
- 1999-02-09 US US09/622,752 patent/US6290493B1/en not_active Expired - Fee Related
- 1999-02-09 ES ES99906231T patent/ES2177241T3/es not_active Expired - Lifetime
- 1999-02-09 WO PCT/EP1999/000935 patent/WO1999044001A1/fr active IP Right Grant
- 1999-02-09 TR TR2000/02208T patent/TR200002208T2/xx unknown
- 1999-02-09 AU AU26236/99A patent/AU2623699A/en not_active Abandoned
- 1999-02-09 EP EP99906231A patent/EP1060356B1/fr not_active Expired - Lifetime
- 1999-02-09 PT PT99906231T patent/PT1060356E/pt unknown
- 1999-02-09 ID IDW20001912A patent/ID28084A/id unknown
- 1999-02-09 DE DE69901801T patent/DE69901801T2/de not_active Expired - Lifetime
- 1999-02-09 BR BR9907685-3A patent/BR9907685A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ID28084A (id) | 2001-05-03 |
TR200002208T2 (tr) | 2000-12-21 |
PT1060356E (pt) | 2002-10-31 |
BE1011760A3 (fr) | 1999-12-07 |
US6290493B1 (en) | 2001-09-18 |
WO1999044001A1 (fr) | 1999-09-02 |
AU2623699A (en) | 1999-09-15 |
EP1060356A1 (fr) | 2000-12-20 |
DE69901801D1 (de) | 2002-07-18 |
DE69901801T2 (de) | 2003-01-09 |
ES2177241T3 (es) | 2002-12-01 |
BR9907685A (pt) | 2000-11-14 |
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