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EP0489369B2 - Grille - Google Patents
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EP0489369B2 - Grille - Google Patents

Grille Download PDF

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Publication number
EP0489369B2
EP0489369B2 EP19910120546 EP91120546A EP0489369B2 EP 0489369 B2 EP0489369 B2 EP 0489369B2 EP 19910120546 EP19910120546 EP 19910120546 EP 91120546 A EP91120546 A EP 91120546A EP 0489369 B2 EP0489369 B2 EP 0489369B2
Authority
EP
European Patent Office
Prior art keywords
grate
grate plate
plates
plate
bodies
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
Application number
EP19910120546
Other languages
German (de)
English (en)
Other versions
EP0489369A1 (fr
EP0489369B1 (fr
Inventor
Günter Dipl.-Ing. Dittmann
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.)
HUMBOLDT WEDAG ZAB GmbH
Original Assignee
HUMBOLDT WEDAG ZAB GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6419770&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0489369(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by HUMBOLDT WEDAG ZAB GmbH filed Critical HUMBOLDT WEDAG ZAB GmbH
Publication of EP0489369A1 publication Critical patent/EP0489369A1/fr
Application granted granted Critical
Publication of EP0489369B1 publication Critical patent/EP0489369B1/fr
Publication of EP0489369B2 publication Critical patent/EP0489369B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/02—Sintering grates or tables
    • 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 invention relates to a grate for a device for thermal treatment of solids, preferably exiting from a firing unit Cement clinker, the grate plate box-shaped is formed and gas outlet slots for the under the Has grate plate gas.
  • the thermal Free-flowing material to be treated can be cold material with hot treatment gases is being treated, or hot material that is going through the treatment gases are cooled.
  • Essential feature is that the grate plates with gas outlet openings are provided, through which the supplied from below Gas flows through it for thermal treatment and funding the material is needed.
  • a grate floor is known from DE 33 32 592, the grate elements made of two cast Longitudinal webs with cast-on, forming the grate surface alternately sprout from each other Longitudinal web extending transversely to the conveying direction exists, whereby through the joined longitudinal webs fine slits for the treatment gas between the profiles are trained.
  • the the rust surface forming profiles overlap and form in the conveying direction of the material running diagonally upwards Louvres.
  • DE 19 40 700 is also a grate floor known, which is formed by individual bars, which in a box-shaped housing are arranged.
  • the the bars forming the grate floor are designed so that the gap between the bars of the bar grate itself taper like a nozzle in the direction of flow of the cooling air, to thereby increase the material 's conveying effect To improve gas flow.
  • the rods have one triangular or trapezoidal cross-section, respectively they are designed so that the between two bars resulting gap is S-shaped corrugated.
  • SU 398 808 is a step-shaped one Rostêt known, on its vertical step side a slot is arranged through which periodically Gas is blown to convey the material.
  • Slabs arranged in a step-like manner.
  • DE 35 38 059 is a material transfer device for the hot material discharged from a furnace outlet known, which is characterized in that it from a number of individual, spread across the width of the inlet part extending, air-permeable support elements consists of each other with their longitudinal edges are connected and under an overall inclination are arranged between 10 ° and 20 °.
  • the support elements are in the conveying direction of the material with air openings Mistake.
  • DE 23 58 221 describes a one-part system wedge-shaped grate plate for cooling and firing grates described, the wedge-shaped area step-shaped is trained.
  • the vertical step areas as well the front side of the grate plate has nozzle openings, in Shape of holes, on.
  • the wedge-shaped step formation the grate plate has the task of making up the fine part of the goods to be thermally treated in order to thus a sufficient residence time of the material in the To get cooler.
  • This accumulation and the cooling of the Material is additionally countercurrent to the Cooling air supplied to the goods to be cooled, which from the in the vertically arranged step area arranged nozzle openings exits, supports.
  • the object of the invention is to develop a grate that Maintaining the basic shape of the grate plate and with a low technical and economic effort depending on the thermal requirements and the funding conditions of the material adapted different design of the gas outlet.
  • Each grate plate is box-shaped and has gas outlet slots for the gas supplied under the grate plate.
  • the grate plate bodies are arranged in the grate plate frame in such a way that a plurality of horizontal slots are arranged offset on the front side of the grate plate as seen in the conveying direction of the material.
  • the gap width of the horizontal slots is determined by the spacers cast onto the top of the grate plate body.
  • the grate plate bodies used in the grate plates are designed differently in accordance with the required thermal conditions and the conveying behavior of the material. Grate plate bodies with a flat surface or grate plates are used, which are provided with an upward slant in the front area when viewed in the direction of conveyance of the material.
  • the advantage of the grate according to the invention is that the arrangement the horizontal slots the path of the gas through the material layer is long. That has one good heat exchange between gas and material. Simultaneously done by the horizontally supplied gases provide a good conveyance of the material. Also be Clogging of the slots due to material deposits or material diarrhea avoided. Due to the differently designed shape of the individual grate plate body and through the possibility of using a different number of grate plate bodies in a grate plate the outflow speed and the amount of gas as well as the Outflow angle of the gas is affected and can vary according to the material conditions can be adjusted across the width and length of the grate floor without the Basic shape of the grate plate must be changed.
  • the invention is based on the use of the grate plates in a grate cooler for cooling from one Firing aggregate emerging hot cement clinker described become.
  • the invention is also for others Solids and other thermal treatment processes can be used where rust plates are used Rust floors are used.
  • the grate surface of the grate cooler is covered by several rows of grate plates formed, each row of grate plates from several side by side arranged grate plates 6 is formed.
  • the basic structure of the grate plate 6 consists of a box-shaped grate plate frame 1, in which a plurality of grate plate bodies 2 are arranged.
  • the grate plate body 2 are in the grate plate frame 1 used that at the in the conveying direction of the material seen front of the grate plates 6 several horizontal slots 3 offset in terraces arise. To maintain a certain gap width the horizontal slots 3 are each at the top of the Grate plate body 2 cast on spacers 4.
  • the bottom grate plate body 2 is also a component of the grate plate frame 1. But its shape corresponds that of the other grate plate bodies 2.
  • the shape of the grate plate body used 2 is designed and aligned differently according to the conveying behavior and the cooling conditions of the material.
  • grate plate bodies 2 with a flat surface - as in figure 1 shown - it is achieved that the cooling air a longer Time to flow through the material layer such as against a cross flow. This is the heat exchange between cooling air and hot More intense material.
  • constipation the horizontal slots 3 largely by material avoided.
  • grate plate body 2 which in Direction of transport of the material seen in the front Provide area with an upward slope 5 are ( Figure 2), the exit angle of the cooling air influenced.
  • the angle of the slope is 10 ° to 40 ° and depends on the required gas outlet conditions.
  • the number of grate plate bodies 2 of a grate plate 6 can be up to 7 and straightens the amount of air needed.
  • the grate cooler surface are grate plates 6 with a small number of horizontal slots 3 used, because in the edge area compared to the middle area lower gas throughput is required.
  • rust plates 6 with different designed grate plate body 2 used. So grate plates 6 with flat or with a Inclined 5 provided rust plate body 2 equipped become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Furnace Details (AREA)
  • Incineration Of Waste (AREA)
  • Furnace Charging Or Discharging (AREA)

Claims (6)

  1. Grille pour un dispositif destiné au traitement thermique de corps solides, de préférence de clinkers à ciment évacués d'un appareil de cuisson, comportant plusieurs plaques de grille (6) disposées l'une à côté de l'autre, celles-ci formant une rangée de plaques de grille, de même que plusieurs rangées de plaques de grille disposées en gradins, chacune des plaques de grille (6) étant réalisée en forme de caisse et pourvue de fentes (3) pour l'échappement du gaz amené au-dessous de la plaque de grille, alors que le châssis (1) de la plaque de grille (6) comprend plusieurs éléments de grillage (2) disposés de telle manière que plusieurs fentes horizontales (3), décalées en terrasses, se présentent en face avant de la plaque de grille (6), vu dans le sens du transport du matériau, la largeur des fentes horizontales (3) étant déterminée par des écarteurs (4) coulés de manière à être solidaires du dessus des éléments de grillage (2), les plaques de grille (6) disposées aux bordures de la grille présentant moins de fentes horizontales (3) que les plaques de grille au milieu, le nombre des éléments de grillage (2) constituant une plaque de grille (6) pouvant aller jusqu'à sept.
  2. Grille revendiquée en 1, caractérisée en ce que la surface des divers éléments de grillage (2) de la plaque de grille (6) est plate.
  3. Grille revendiquée en 1, caractérisée en ce que la surface des divers éléments de grillage (2) de la plaque de grille (6) présente dans la partie avant, une inclinaison de montée, vu dans le sens du transport du matériau.
  4. Grille revendiquée en 1 à 3, caractérisée en ce que l'élément de grillage (2) le plus bas d'une plaque de grille (6) fait partie du chassis (1) de la plaque de grille.
  5. Grille revendiquée en 1 à 4, caractérisée en ce que la plaque de grille (6) est munie d'éléments de grillage (2) plats et pourvus d'une inclinaison de montée (5).
  6. Grille revendiquée en 3 à 5, caractérisée en ce que l'angle d'inclinaison de montée des éléments de grillage (2) de la plaque de grille (6) est différent en fonction des conditions d'échappement de gaz nécessaires, et qu'il est compris dans une plage allant de 10° à 40°.
EP19910120546 1990-12-04 1991-11-29 Grille Expired - Lifetime EP0489369B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039015 1990-12-04
DE19904039015 DE4039015A1 (de) 1990-12-04 1990-12-04 Rostplatte

Publications (3)

Publication Number Publication Date
EP0489369A1 EP0489369A1 (fr) 1992-06-10
EP0489369B1 EP0489369B1 (fr) 1996-03-27
EP0489369B2 true EP0489369B2 (fr) 1999-04-21

Family

ID=6419770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910120546 Expired - Lifetime EP0489369B2 (fr) 1990-12-04 1991-11-29 Grille

Country Status (4)

Country Link
EP (1) EP0489369B2 (fr)
DE (2) DE4039015A1 (fr)
DK (1) DK0489369T4 (fr)
ES (1) ES2086462T5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103866A1 (de) * 1991-02-07 1992-08-13 Zementanlagen Und Maschinenbau Rostplatte
BE1011760A3 (fr) * 1998-02-24 1999-12-07 Magotteaux Int Plaque de grille pour un refroidisseur.
DE102009009285B4 (de) * 2009-02-17 2013-11-28 Ikn Gmbh Rostplattenanordnung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL10862C (fr) *
DE2358221A1 (de) * 1973-11-22 1975-06-05 Peters Ag Claudius Rostplatte fuer kuehl- und brennroste
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
DE3538059A1 (de) * 1985-10-25 1987-04-30 Krupp Polysius Ag Vorrichtung zum kuehlen von heissem gut

Also Published As

Publication number Publication date
EP0489369A1 (fr) 1992-06-10
DK0489369T4 (da) 1999-10-25
ES2086462T5 (es) 1999-08-16
DK0489369T3 (da) 1996-08-12
EP0489369B1 (fr) 1996-03-27
ES2086462T3 (es) 1996-07-01
DE59107616D1 (de) 1996-05-02
DE4039015A1 (de) 1992-06-11

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