EP2577203B1 - Plaque de grille - Google Patents

Plaque de grille Download PDF

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Publication number
EP2577203B1
EP2577203B1 EP11718383.0A EP11718383A EP2577203B1 EP 2577203 B1 EP2577203 B1 EP 2577203B1 EP 11718383 A EP11718383 A EP 11718383A EP 2577203 B1 EP2577203 B1 EP 2577203B1
Authority
EP
European Patent Office
Prior art keywords
grate plate
cavities
slits
slope
grid
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.)
Active
Application number
EP11718383.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2577203A1 (fr
Inventor
Regnier Pirard
Christophe Vielvoye
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.)
Magotteaux International SA
Original Assignee
Magotteaux International SA
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 Magotteaux International SA filed Critical Magotteaux International SA
Priority to PL11718383T priority Critical patent/PL2577203T3/pl
Publication of EP2577203A1 publication Critical patent/EP2577203A1/fr
Application granted granted Critical
Publication of EP2577203B1 publication Critical patent/EP2577203B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0006—Composite supporting structures
    • 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
    • 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
    • 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
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D2005/0081—Details

Definitions

  • the present invention relates to a component of a grid cooler and more particularly of a grid plate intended to transport and cool efficiently and economically a bulk material leaving an oven at a high temperature.
  • the grid cooler is well-known equipment for example for cooling the cement clinker after firing.
  • the main functions of this equipment cover cooling, heat recovery and transport of the clinker.
  • the cooler generally has a bed of grids superimposed at an angle to the horizontal.
  • EP0120227 (Orren ) explains the fundamentals of cooling technology by a system of oscillating grids that advance the material. However, this document does not provide any system to combat excessive wear of the plates and does not disclose any construction details making it possible to ensure effective cooling of the plates to limit their wear.
  • the design disclosed in this document provides only a certain number of orifices to allow the injection of air.
  • the document US4600380 (von Wedel ) describes a grid plate in the form of a box pierced with very fine slots through which the cooling air is injected.
  • This document proposes to inject the air at a precise angle and provides for profiling slots in a curved manner, so that the material to be cooled cannot flow through the slots until possibly blocking them, in case unexpected interruption of the cooling air injection.
  • the orifice of these slots is narrowed over the entire length of the slot, which causes a significant pressure drop.
  • no retention pocket is provided and the hot material is in direct contact with the entire surface of the box, which generally results in premature wear.
  • the document EP1060356 discloses a grid plate comprising pockets of a particular shape with an inclined bottom and cooling air passage channels in a particular configuration. These pockets do not have a triangular section and have a rim at the connection with the grid surface.
  • the grid plate disclosed by this document also does not have a rising end with a slope opposite to that of the pocket.
  • the document DE 195 37 904 A1 discloses a grid plate without pockets.
  • the presence of pockets is however necessary for cooling the grid because the material trapped in the pockets, and already cooled, protects the grid against overheating.
  • the angles specified in this document relate to the cooling gas injection channels on the surface of the grid. These angles have no relation to any ascending end with reverse slope.
  • the document CN 2365218Y discloses a grid plate with pockets for transporting and cooling very hot materials leaving an oven.
  • the grid plate according to the present invention attempts to overcome the drawbacks of the grid plates of the prior art.
  • the invention relates more particularly to a grid plate of a particularly efficient design allowing a regular speed of progression of the bed of material associated with efficient cooling thanks to an injection of efficient cooling air into the system supporting the bed of material, thus allowing control of the inevitable wear of these supports.
  • the present invention discloses a grid plate for transporting and cooling very hot materials leaving an oven, said plate comprising cavities of rectangular shape, the largest dimension being perpendicular to the direction of advancement of the material, the section of these cavities being triangular with a fin-shaped bottom ending in a rising end with a reverse slope, the slope of the cavities being between 10 and 45 °, preferably between 20 and 30 ° relative to the horizontal, and the slope inverse ( ⁇ ) of the rising end being at an angle equal to or less than 6 ° to the angle ( ⁇ ) of the slope of the cavities.
  • the present invention also discloses a grid cooler having a grid plate according to any of the preceding features.
  • the present invention relates to a component of a cooling system intended to cool efficiently and economically a bulk material initially located at an elevated temperature, generally above 1000 ° C.
  • a cooling system provides for advancing a bed of very hot material at a regular speed on ventilated grid plates while blowing cold air intended to cool this material.
  • the choice of the number of cavities and the angle of slope of the bottom of the pockets is conditioned by the desired flow rate.
  • the cooling air is injected through the space between two successive fins in the bottom of the cavities, this space being locally narrowed just before opening into the bottom of each cavity thanks to an excess of material concentrated exclusively on the face. lower of the upper fin and so that air is injected through one or more slots.
  • This reduction in section is carried out over a very limited portion of the passage, so as to reduce the pressure drop.
  • the passage When it opens into the cavity, the passage has the appearance of a slit 2 to 10 millimeters in width and 20 to 280 millimeters in length.
  • each fin forming the bottom of the cavity is inclined so that it forms with the horizontal an angle ⁇ equal or less than 6 ° maximum than that ⁇ of the bottom of the cavity but with a slope reverse, that is to say downward in the direction of progression of the material to be cooled.
  • This portion with reverse slope must have a minimum length sufficient to effectively interrupt the possible flow of material through the air injection passage. This length is generally greater than 15 mm, preferably greater than 20 mm.
  • the lifetime of the grid plate is determined by the fact that, beyond a certain wear resulting in a reduction in the thickness of the elements and walls constituting the grid subjected to the phenomena of oxidation and abrasion due to the passage of the material to be cooled, the grid no longer fulfills its function properly and must be dismantled, which requires the complete shutdown of the installation, which is extremely disadvantageous since it implies allowing time for the installation to cool enough to allow intervention.
  • the abrasion phenomenon must be combated by strictly limiting the surfaces of the grid plate which are directly exposed to the hot material and the oxidation phenomenon must be combated by ensuring that these surfaces are effectively cooled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Incineration Of Waste (AREA)
EP11718383.0A 2010-06-03 2011-05-06 Plaque de grille Active EP2577203B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11718383T PL2577203T3 (pl) 2010-06-03 2011-05-06 Płyta rusztowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2010/0339A BE1019360A3 (fr) 2010-06-03 2010-06-03 Plaque de grille.
PCT/EP2011/057320 WO2011151130A1 (fr) 2010-06-03 2011-05-06 Plaque de grille

Publications (2)

Publication Number Publication Date
EP2577203A1 EP2577203A1 (fr) 2013-04-10
EP2577203B1 true EP2577203B1 (fr) 2020-04-01

Family

ID=43413716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11718383.0A Active EP2577203B1 (fr) 2010-06-03 2011-05-06 Plaque de grille

Country Status (18)

Country Link
US (1) US9677816B2 (ja)
EP (1) EP2577203B1 (ja)
JP (1) JP5738402B2 (ja)
KR (1) KR101812364B1 (ja)
CN (1) CN102939508B (ja)
BE (1) BE1019360A3 (ja)
BR (1) BR112012030758B1 (ja)
CA (1) CA2799422C (ja)
CL (1) CL2012003225A1 (ja)
ES (1) ES2791777T3 (ja)
HU (1) HUE049179T2 (ja)
MX (1) MX344393B (ja)
MY (1) MY173425A (ja)
PL (1) PL2577203T3 (ja)
PT (1) PT2577203T (ja)
RU (1) RU2556799C2 (ja)
WO (1) WO2011151130A1 (ja)
ZA (1) ZA201208909B (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2645034B1 (en) * 2012-03-28 2015-05-27 Alite GmbH Grate element for a grate cooler
DE102014008010B4 (de) * 2014-06-05 2018-11-29 Khd Humboldt Wedag Gmbh Rostplatte für einen Rostkühler
CN105546999B (zh) * 2016-03-14 2019-01-22 山东大学 一种篦板、篦冷机模块及篦冷机
RU2640701C1 (ru) * 2016-07-13 2018-01-11 Александр Сергеевич Зубачев Колосник охладителя с переталкивающими колосниковыми решетками
RU174873U1 (ru) * 2016-07-26 2017-11-08 Александр Сергеевич Зубачев Колосник охладителя с переталкивающими колосниковыми решетками
CN106352709B (zh) * 2016-09-29 2018-10-12 张家港长力机械有限公司 环冷机台车

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3734043A1 (de) * 1987-10-08 1989-04-20 Kloeckner Humboldt Deutz Ag Rostkuehler zum kuehlen von heissem schuettgut
US5282741A (en) 1992-01-31 1994-02-01 Fuller Company Grate plate
DK154692D0 (da) * 1992-12-23 1992-12-23 Smidth & Co As F L Fremgangsmaade og koeler til afkoeling af partikelformet materiale
DE19537904A1 (de) * 1995-06-28 1997-01-02 Krupp Polysius Ag Rostplatte
US5575642A (en) 1995-12-01 1996-11-19 The Carondelet Corporation Grate plate
JPH09188551A (ja) * 1996-01-12 1997-07-22 Babcock Hitachi Kk クリンカクーラの格子板
DE19622636A1 (de) * 1996-06-05 1997-12-11 Krupp Polysius Ag Rostplatte sowie Verfahren zur Herstellung einer Rostplatte
DE19633969A1 (de) 1996-08-22 1998-02-26 Karl Von Wedel Schüttgutrost
BE1011760A3 (fr) 1998-02-24 1999-12-07 Magotteaux Int Plaque de grille pour un refroidisseur.
CN2365218Y (zh) * 1999-03-18 2000-02-23 国家建筑材料工业局天津水泥工业设计研究院 充气箅板
JP2001012864A (ja) * 1999-06-30 2001-01-19 Taiheiyo Cement Corp 焼塊冷却装置及びそのグレートプレート
DE10117225A1 (de) * 2001-04-06 2002-10-10 Bmh Claudius Peters Gmbh Kühlrost für einen Schüttgutkühler
DE102007019530C5 (de) * 2007-04-25 2018-01-04 Alite Gmbh Verfahren und Einrichtung zum Kühlen einer auf einem Förderrost liegenden Schüttgutschicht
CN101186453B (zh) * 2007-11-30 2010-06-09 南京西普水泥工程集团有限公司 一种篦板
CN201449156U (zh) * 2009-08-25 2010-05-05 兴化市精密铸钢有限公司 组合式耐磨高阻力篦板
JP6003351B2 (ja) * 2012-07-30 2016-10-05 三菱自動車工業株式会社 排気浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CL2012003225A1 (es) 2013-03-08
CA2799422C (en) 2017-12-19
BR112012030758A2 (pt) 2016-11-01
CN102939508A (zh) 2013-02-20
RU2012148622A (ru) 2014-07-20
MY173425A (en) 2020-01-23
KR101812364B1 (ko) 2017-12-26
BE1019360A3 (fr) 2012-06-05
KR20130111933A (ko) 2013-10-11
WO2011151130A1 (fr) 2011-12-08
PL2577203T3 (pl) 2020-11-02
PT2577203T (pt) 2020-05-11
ES2791777T3 (es) 2020-11-05
RU2556799C2 (ru) 2015-07-20
EP2577203A1 (fr) 2013-04-10
JP2013533451A (ja) 2013-08-22
CA2799422A1 (en) 2011-12-08
MX344393B (es) 2016-12-13
CN102939508B (zh) 2016-04-13
US9677816B2 (en) 2017-06-13
JP5738402B2 (ja) 2015-06-24
ZA201208909B (en) 2013-07-31
US20130130188A1 (en) 2013-05-23
BR112012030758B1 (pt) 2021-01-19
MX2012014020A (es) 2013-01-24
HUE049179T2 (hu) 2020-09-28

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