EP1695014A2 - Dispositif de refroidissement de materiau en vrac pour refroidissement d'un materiau chaud - Google Patents

Dispositif de refroidissement de materiau en vrac pour refroidissement d'un materiau chaud

Info

Publication number
EP1695014A2
EP1695014A2 EP04803996A EP04803996A EP1695014A2 EP 1695014 A2 EP1695014 A2 EP 1695014A2 EP 04803996 A EP04803996 A EP 04803996A EP 04803996 A EP04803996 A EP 04803996A EP 1695014 A2 EP1695014 A2 EP 1695014A2
Authority
EP
European Patent Office
Prior art keywords
cooling
cooler
grate
cooled
bulk material
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.)
Ceased
Application number
EP04803996A
Other languages
German (de)
English (en)
Inventor
Matthias Mersmann
Karl Schinke
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag 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 KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP1695014A2 publication Critical patent/EP1695014A2/fr
Ceased legal-status Critical Current

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

Definitions

  • the invention relates to a bulk cooler with a refrigerated goods such as. B. hot cement clinker carrying cooling air flowed through by cooling air, wherein above the fixed grate surface transverse to the refrigerated goods transport direction several rows of adjacent reciprocating bar-shaped thrust elements are arranged, which are movable between a forward stroke position in the refrigerated goods transport direction and a return stroke position and which successively move the refrigerated goods from the beginning of the cooler to Transport the cooler end.
  • a refrigerated goods such as. B. hot cement clinker carrying cooling air flowed through by cooling air
  • the hot cement clinker produced in a rotary kiln from caicinated cement raw meal is thrown from the end of the furnace discharge onto a cooler, usually onto the cooling grate of a grate cooler, distributed thereon and moved in the longitudinal direction to the cooler discharge end by suitable conveying means, the cooling grate and the hot bulk material layer transverse to the direction of conveyance are essentially traversed by cooling air flows from bottom to top.
  • EP-B-1 021 692 discloses a grate cooler type in which the cooling grate through which cooling air flows is not moved, but is fixed, above the fixed grate surface Transversely to the refrigerated goods transport direction, several rows of adjacent reciprocating bar-shaped thrust elements are arranged, which are moved between a forward stroke position in the refrigerated goods transport direction and a return stroke position, so that the material to be cooled gradually moves from the cooler start to the cooler end by the back and forth movement of these push elements is cooled.
  • a similar grate cooler type known from DE-A-100 18 142 it is also known to divide the push elements movable above the fixed cooling grate bottom into at least two groups and to move the push elements forward together in the transport direction, but not together, but instead to move back separately from each other, with as little bulk material as possible being moved back when the push elements are pushed backwards.
  • the invention has for its object to provide a bulk cooler, in particular for hot cement clinker with a fixed ventilated cooling grate and moving thrust elements and yet with an increased service life.
  • the thrust elements which are movable above the fixed grate surface through which cooling air passes are designed as hollow bodies and a cooling medium flows through them and they are cooled from the inside.
  • the cooling medium can be cooling air, for. B. part of the cooling air used in the grate cooler, which flows into the lower area of the thrust elements via cooling air inlet openings and flows out through cooling air outlet openings in the upper area of the thrust elements and is then used in the bulk material bed as additional cooling air.
  • Water can also be used as the cooling medium and its heat of evaporation can be used to cool the thrust elements, the water vapor emerging from the thrust elements being mixed with the cooling air of the bulk material cooler.
  • the service life of the bulk material cooler according to the invention is increased as a result of the efficient cooling of the highly stressed thrust elements, which is of particular importance for a cement clinker production line which has to be stopped in the event of a premature failure of the clinker rust cooler.
  • the drawing shows the cross section through a grate cooler according to the invention with a fixed, ie non-moving cooling grate 11 through which cooling air 10 flows essentially from the bottom upwards, via which the items to be cooled, not shown, such as, for example, B. hot cement clinker is movable perpendicular to the plane of the drawing from the refrigerated goods inlet to the refrigerated goods outlet.
  • the cooling grate 11 can be composed of individual modules, which are advantageously troughs or refrigerated goods pockets 12 are equipped for receiving and holding refrigerated goods, so that when the grate cooler is operating on the static cooling grate 11, a lower pre-cooled good bed layer or protective layer is formed.
  • cooling grate 11 Above the cooling grate 11, several rows are arranged transversely to the refrigerated goods transport direction perpendicular to the plane of the drawing, with spacing between adjacent thrust elements 13a, 13b, 13c, etc., whose bar-shaped upper sides from below into the z. B. 1000 ° C hot refrigerated goods protrude into it.
  • thrust elements are driven from below the cooling grate 11 in such a way that they are moved forward perpendicularly to the plane of the drawing sheet to a forward stroke position in the direction of the goods to be transported and are moved back together or at different times, so that the goods to be cooled are successively transported from the beginning of the cooler to the end of the cooler.
  • the thrust elements 13a to 13c which are exposed to the high thermal-mechanical wear stress, are designed as hollow bodies according to the invention and are flowed through by cooling air and thereby cooled from the inside, thereby increasing the service life of the thrust elements and thus the service life of the bulk material cooler.
  • the thrust elements 13a to 13c etc. are each provided with cooling air inlet openings 14 in their lower area below the cooling grate 11 and on their upper side with cooling air outlet openings 15, it being possible for several beam-like distributed cooling air outlet openings 15 to be arranged per beam-shaped pushing element.
  • the cooling air emerging from the upper region of the thrust elements 13a to 13c etc. then enters the bulk material bed for cooling it.
  • the thrust elements 13a to 13c etc. can be moved individually and / or in selectable groups between their forward stroke position and their return stroke position in order to control the conveying properties of the grate cooler and the distribution of the cement clinker both over the cooler length and over the To be able to optimize the cooler width, so that in the grate cooler according to the invention, apart from its long service life, the thermal efficiency can also be kept high. Because with the grate cooler according to the invention it is fundamentally possible to specifically distribute, accelerate or brake the hot cement clinker in certain areas or zones of the cooler.

Landscapes

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

Abstract

L'invention concerne un dispositif de refroidissement de matériau en vrac, en particulier de clinker de ciment chaud, comprenant une grille (1) réfrigérante fixe ventilée, et des éléments (13a à 13c) de poussée mobiles, et présentant une durabilité accrue. Les éléments de poussée (13a à 13c) du dispositif décrit sont produits sous forme de corps creux dans lesquels circule un fluide réfrigérant (10), et sont ainsi refroidis de l'intérieur. .
EP04803996A 2003-12-18 2004-12-17 Dispositif de refroidissement de materiau en vrac pour refroidissement d'un materiau chaud Ceased EP1695014A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10359400A DE10359400A1 (de) 2003-12-18 2003-12-18 Schüttgutkühler zum Kühlen von heißem Kühlgut
PCT/EP2004/014387 WO2005059462A2 (fr) 2003-12-18 2004-12-17 Dispositif de refroidissement de materiau en vrac pour refroidissement d'un materiau chaud

Publications (1)

Publication Number Publication Date
EP1695014A2 true EP1695014A2 (fr) 2006-08-30

Family

ID=34672856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803996A Ceased EP1695014A2 (fr) 2003-12-18 2004-12-17 Dispositif de refroidissement de materiau en vrac pour refroidissement d'un materiau chaud

Country Status (6)

Country Link
US (1) US20070202454A1 (fr)
EP (1) EP1695014A2 (fr)
JP (1) JP2007518049A (fr)
CN (1) CN1922459A (fr)
DE (1) DE10359400A1 (fr)
WO (1) WO2005059462A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007019530C5 (de) * 2007-04-25 2018-01-04 Alite Gmbh Verfahren und Einrichtung zum Kühlen einer auf einem Förderrost liegenden Schüttgutschicht
JP5604790B2 (ja) * 2009-02-04 2014-10-15 セイコーエプソン株式会社 印刷方法及び印刷装置
CN109708129B (zh) * 2019-01-22 2024-09-20 济南锅炉集团有限公司 组合水冷炉排

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD130682A1 (de) * 1977-05-03 1978-04-19 Gerd Gleichmar Verfahren und vorrichtung zum kuehlen von feststoffmaterialien
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
DE4242374A1 (fr) * 1992-01-31 1993-08-05 Kloeckner Humboldt Deutz Ag
DK169218B1 (da) * 1992-10-06 1994-09-12 Smidth & Co As F L Ristelement til en ristbund, f.eks i en klinkerkøler
DK169828B1 (da) * 1992-11-27 1995-03-06 Smidth & Co As F L Fleksibel lufttilførselsforbindelse i ristkøler
EP0634619B2 (fr) * 1993-07-15 1999-03-10 DEUTZ Aktiengesellschaft Plaque de grille pour refroidisseur à plaques mobiles
DE4421552A1 (de) * 1994-01-24 1995-07-27 Krupp Polysius Ag Schubrostkühler
DE4412885A1 (de) * 1994-04-14 1995-10-19 Krupp Polysius Ag Kühlrost
US5766001A (en) * 1995-01-20 1998-06-16 Bentsen; Bo Grate element for a grate surface, e.g. in a clinker cooler
US5820364A (en) * 1996-07-31 1998-10-13 Republic Engineered Systems Reheat furnace apparatus and method of use
DE19622636A1 (de) * 1996-06-05 1997-12-11 Krupp Polysius Ag Rostplatte sowie Verfahren zur Herstellung einer Rostplatte
DE19650742C1 (de) * 1996-12-06 1998-02-19 Metallgesellschaft Ag Mit Wasser gekühlter Verbrennungsrost
ZA982104B (en) * 1997-04-22 1998-09-16 Smidth & Co As F L Cooler for cooling of particulate material
DE19752023A1 (de) * 1997-11-24 1999-05-27 Krupp Polysius Ag Rost
DE10018142B4 (de) * 2000-04-12 2011-01-20 Polysius Ag Kühler und Verfahren zum Kühlen von heißem Schüttgut

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005059462A2 *

Also Published As

Publication number Publication date
CN1922459A (zh) 2007-02-28
WO2005059462A2 (fr) 2005-06-30
WO2005059462A3 (fr) 2005-08-25
US20070202454A1 (en) 2007-08-30
JP2007518049A (ja) 2007-07-05
DE10359400A1 (de) 2005-07-14

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