WO1981000758A1 - Elements de refroidissement pour fours industriels - Google Patents

Elements de refroidissement pour fours industriels Download PDF

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Publication number
WO1981000758A1
WO1981000758A1 PCT/EP1980/000098 EP8000098W WO8100758A1 WO 1981000758 A1 WO1981000758 A1 WO 1981000758A1 EP 8000098 W EP8000098 W EP 8000098W WO 8100758 A1 WO8100758 A1 WO 8100758A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling element
tubes
pipes
oven
another
Prior art date
Application number
PCT/EP1980/000098
Other languages
German (de)
English (en)
Inventor
H Westerhoff
Original Assignee
H Westerhoff
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 H Westerhoff filed Critical H Westerhoff
Publication of WO1981000758A1 publication Critical patent/WO1981000758A1/fr

Links

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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/24—Cooling arrangements

Definitions

  • the invention relates to a cooling element for industrial furnaces, which consists of a plurality of tubes running parallel to one another and is exposed in the wall and / or in the cover, preferably an arc furnace.
  • a water-cooled plate for arc furnaces which is arranged in an arc furnace so that it forms part of the furnace wall.
  • the plate has an outer surface exposed to the inside of the arc, which is provided with a plurality of ribs or other projections.
  • the ribs or other projections serve as the core for the sprayed under the action of the arc, molten slag, which on these as well as on. adheres to the surface of the water-cooled plate as a result of the cooling effect, so that an increasingly thicker layer forms.
  • this known, water-cooled plate has the major disadvantage that it or the like once in its manufacture by the welded-on ribs. is comparatively complex and, on the other hand, that the welding of the ribs during operation gives rise to thermal tensions which very easily lead to damage. In addition, the welded-on ribs result in increased heat absorption, which is undesirable.
  • the invention has for its object to provide a cooling element of the type mentioned while avoiding the aforementioned disadvantages, which is easy to manufacture and attach and has a long life and practically uniform heat load.
  • this is achieved in that the mutually adjacent tubes of the cooling element are arranged at a distance from one another. In this way it is achieved that the splashing liquid Slag is deposited in the gaps between the pipes and solidifies as a result of the cooling effect of the pipes, so that gradually an increasingly thick slag layer forms, which adheres firmly to the pipes of the cooling element and ensures good thermal efficiency of the arc furnace.
  • the mutually adjacent tubes of the cooling element are advantageously connected to one another by webs which are located on the sides of the tubes facing away from the interior of the furnace. These webs prevent the liquid sprayed slag from passing through the gap between the tubes, so that the slag inevitably settles in the gaps between the tubes.
  • 1 denotes the mutually parallel tubes of the cooling element, which are each arranged at a distance from one another, so that 2 form between these gaps.
  • the gap 2 between the individual pipes 1 ensures that the liquid slag sprayed inside the furnace can settle in the columns 2, first in its rear, expanding parts immediately in front of the webs 3. Gradually, always more spattered slag deposited so that the gaps 2 are filled with solidifying slag, a solid slag layer being formed on the sides of the pipes 1 facing the furnace interior. Due to the different cross-section of column 2, the slag layer that forms is firmly anchored.
  • the anchoring of the slag layer is therefore not achieved by special measures, such as milling grooves, placing welding beads, profiles, etc., but by spacing the pipes to be connected.
  • Each cooling element is provided with an inlet and an outlet for the coolant, for example water, flowing through the tubes 1, the individual tubes of a cooling element being able to be arranged one behind the other in terms of flow technology or else parallel to one another, specifically individually or in groups.
  • the tubes of a cooling element can be arranged both vertically and horizontally.
  • the above-described invention is preferably suitable for use in arc furnaces, but is not restricted to this, but can be used quite generally in industrial furnaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

Element de refroidissement pour fours industriels, constitue d'une pluralite de tuyaux (1) s'etendant parallelement les uns aux autres. Cet element est dispose dans la paroi et/ou le couvercle du four de preference un four a arc electrique de maniere telle qu'il forme une partie de la paroi respectivement du couvercle et s'etende librement vers l'interieur du four. L'invention a pour but de creer un element de refroidissement de ce type, qui soit facile a realiser et a monter et qui presente une longue duree de vie et une charge de chaleur pratiquement uniforme. Selon l'invention ce but est atteint par le fait que les tuyaux (1) voisins sont espaces les uns des autres. Les tuyaux voisins sont lies entre eux a l'aide d'entretoises (3) placees sur le cote des tuyaux opposes au cote oriente vers l'interieur du four.
PCT/EP1980/000098 1979-09-13 1980-09-12 Elements de refroidissement pour fours industriels WO1981000758A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792937038 DE2937038A1 (de) 1979-09-13 1979-09-13 Kuehlelement fuer industrieoefen
DE2937038 1979-09-13

Publications (1)

Publication Number Publication Date
WO1981000758A1 true WO1981000758A1 (fr) 1981-03-19

Family

ID=6080789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1980/000098 WO1981000758A1 (fr) 1979-09-13 1980-09-12 Elements de refroidissement pour fours industriels

Country Status (4)

Country Link
EP (1) EP0025604A1 (fr)
JP (1) JPS56501136A (fr)
DE (1) DE2937038A1 (fr)
WO (1) WO1981000758A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU82669A1 (de) * 1980-07-30 1980-10-24 Sidepal Sa Kuehlelement fuer lichtbogenoefen,sowie aus diesen kuehlelementen gebildete lichtbogenofenwand
FR2533680A1 (fr) * 1982-09-23 1984-03-30 Inst Ochistke T Refroidisseur pour les fours verticaux
IT1175125B (it) * 1983-09-19 1987-07-01 Impianti Industriali Spa Pannello raffreddato per forni
DE3820448A1 (de) * 1988-06-16 1989-12-21 Thyssen Edelstahlwerke Ag Gekuehltes wandelement fuer metallurgische oefen
DE4223109C1 (fr) * 1992-07-14 1993-09-16 Reining Heisskuehlung Gmbh & Co Kg, 4330 Muelheim, De
IT1288850B1 (it) * 1996-02-14 1998-09-25 Danieli Off Mecc Dispositvo di raffreddamento a pannelli laterali per forno elettrico
CA2427409C (fr) 2003-05-01 2007-03-20 Whiting Equipment Canada Inc. Systeme de refroidissement d'anneau a tourillon et de convertisseur de four metallurgique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1919087A (en) * 1929-08-08 1933-07-18 American Eng Co Ltd Furnace side wall
US2179638A (en) * 1935-06-07 1939-11-14 Koppers Co Inc Gas producer
DE2808686A1 (de) * 1978-03-01 1979-09-06 Oschatz Gmbh Gasdichte ofenwand fuer einen industrieofen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1919087A (en) * 1929-08-08 1933-07-18 American Eng Co Ltd Furnace side wall
US2179638A (en) * 1935-06-07 1939-11-14 Koppers Co Inc Gas producer
DE2808686A1 (de) * 1978-03-01 1979-09-06 Oschatz Gmbh Gasdichte ofenwand fuer einen industrieofen

Also Published As

Publication number Publication date
JPS56501136A (fr) 1981-08-13
DE2937038A1 (de) 1981-04-02
EP0025604A1 (fr) 1981-03-25

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