EP0660061B1 - Hubbalkenofen - Google Patents
Hubbalkenofen Download PDFInfo
- Publication number
- EP0660061B1 EP0660061B1 EP94120220A EP94120220A EP0660061B1 EP 0660061 B1 EP0660061 B1 EP 0660061B1 EP 94120220 A EP94120220 A EP 94120220A EP 94120220 A EP94120220 A EP 94120220A EP 0660061 B1 EP0660061 B1 EP 0660061B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- walking beam
- walking
- beams
- beam furnace
- support members
- 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
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000137 annealing Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/022—Skids
- F27D3/024—Details of skids, e.g. riders
Definitions
- the invention relates to a walking beam furnace with fixed and Walking beam, as it is from the French published application 2 297 390 is known.
- annealing material especially slabs and boards
- Walking beam ovens and pacemaker ovens as they are more uniform Warm up and transport without damage of the annealing material as, for example, pusher furnaces guarantee.
- the lifting and fixed beams mostly consist of Pipes through which coolant flows. While lingering the Annealing goods, in particular on the fixed beams, are created Temperature differences at the contact points of the annealing material up to about 150 ° C, so-called cooling shadows. These affect the surface quality Dimensional accuracy and the technological properties of the Annealing good. The endeavor is therefore an essential one Reduction of the inevitable temperature differences to achieve in the annealing material.
- German interpretation 20 39 507 describes essays, the oblique or off-center in shots a frame welded to cooled support tubes or a retaining bar are used and by means of locking pieces against longitudinal displacement on the pipes be secured.
- German Offenlegungsschrift 41 33 698 concerns one Walking beam furnace with several on walking and / or fixed beams arranged supporting bars. With regard to one The change of the contact points on the annealing good run Support bars diagonally across the width of the lifting or fixed beams and are welded on to the top of the pipe axial longitudinal bar engaged.
- a major disadvantage of the welded beam constructions consists in the high effort for fastening of the supporting pieces.
- the cooled pipes are also standing due to the high temperature differences between chilled Pipe wall and the welded, the hot Brackets, bars exposed to the oven atmosphere and rails under mechanical tension and are therefore at risk of cracking.
- the invention is based on the problem the lifting and / or fixed beams in a walking beam furnace with interchangeable supports for the annealing material equip that the pipes are at risk from stress cracks is much less, being for the editions safe, quick and easy installation as well Disassembly-permitting attachment must be guaranteed should.
- Each support web advantageously consists of one Tube circumference adjusted foot and a pad for example from an end piece running in the feed direction and preferably an adjoining one sloping to the middle of the other Main piece.
- each support bar At the outer ends of each support bar are the Bores for the plug pins.
- the depressions serve to insert the fastening bolts into the holes and sink. To snap the fastening bolts into place the depressions are provided with the locking projections.
- each supporting bridge When attaching the support bars to the lifting or fixed beams each supporting bridge has at least one through an eyelet with the two adjacent supporting bars connected.
- the walking beam furnace 1 has a stove 2 in the feed direction 3 running fixed beams 4 and walking beams 5, which are divided into sections 6, 7.
- the fixed beam sections 6 and the walking beam sections 7 shorter towards the end of the oven, in order to change the Reaching points on the annealing material.
- the fixed and walking beam sections 6, 7 consist of cooled tubes 9 on which periodically left and right of one through the pipe axis vertical plane each other opposite eyelets 10 are welded.
- the Support webs 8 have holes at their outer ends 11 for bolts 12.
- the supporting webs 8 can be between the Place eyelets 10 on pipe 9.
- One pin each 12 is placed in the depressions 13 by the associated Bore 11 and the relevant eyelet 10 into the Bore 11 of the adjacent support web 8 pushed and locked by the locking projection 14 in the indentation 13.
- each support web 8 is connected to two socket pins 12 with an adjacent supporting web 8 and over one plug pin 12 each of the adjacent supporting webs 8 connected to them and at the same time by means of the eyelets 10 held on the cooling tube.
- Each support web 8 has an approximately the width of the Fixed and the walking beam sections 6, 7 corresponding to the Tube circumference curved foot 15, which is on the tube 9 supports.
- the support webs 8 consist of parallel to Pipe axis extending end piece 17 and an oblique to Pipe axis extending main piece 18, which is in the middle the other end of the supporting web 8 or the adjacent one The supporting web ends.
- the end piece 17 and the main piece 18 form a support 16 for the annealing material.
- the supporting webs 8 are arranged that two main pieces 18 lie on a straight line and complement each other so that they are all together - in the top view seen - run diagonally over tube 9.
- the cooling tube 9 is with a highly heat-resistant insulation 19 encased, from which only the edition 16 of the Support bars 8 protrude.
- the oblique course of the pads causes as well as changing fixed and walking beam sections a constant change of the contact points on the annealing material and thus its even heating.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Reciprocating Conveyors (AREA)
Description
- Fig. 1:
- eine Draufsicht auf den aus Fest- und Hubbalken bestehenden Herd eines Hubbalkenofens,
- Fig 2:
- die Seitenansicht eines Rohres mit einem Tragsteg,
- Fig. 3:
- eine Draufsicht auf mehrere Tragstege,
- Fig. 4:
- einen Querschnitt entlang der Linie A-A in Fig. 3 und
- Fig. 5.
- einen Querschnitt entlang der Linie B-B in Fig. 3.
Claims (7)
- Hubbalkenofen mit einem Herd aus jeweils gekühlten Festbalken (4, 6) und Hubbalken (5, 7) mit kurzen Befestigungsstücken (10) für Tragstege (8) mit Bohrungen (11) für die Befestigungsstücke (10) durchragende Steckbolzen (12), dadurch gekennzeichnet, daß die Befestigungsstücke aus Ösen (10) bestehen sowie links und rechts von einer vertikalen Mittellängsebene des jeweiligen Baktens (4,5,6,7) in regelmäßigen Abständen und einander gegenüberliegend angeordnet sind und daß die Tragstege (8) Einsenkungen (13) mit Rastvorsprüngen (14) zum Verrasten der Steckbolzen (12) aufweisen.
- Hubbalkenofen nach Anspruch 1, dadurch gekennzeichnet, daß die Tragstege (8) aus einem dem Rohrumfang angepaßten Fuß (15) und einer Auflage (16) bestehen.
- Hubbalkenofen nach Anspruch 2, dadurch gekennzeichnet, daß die Auflage (16) aus einem in Vorschubrichtung verlaufenden Endstück (17) und einem schräg zur Rohrachse verlaufenden Hauptstück (18) besteht.
- Hubbalkenofen nach einem der Ansprüche 2 bis 3, dadurch gekennzeichnet, daß die Hub- und die Festbalken (4, 5, 6, 7) und der Fuß (15) eine nur den oberen Bereich der Auflage (16) freilassende, hochhitzebeständige Isolierung (19) aufweisen.
- Hubbalkenofen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mehrere Tragstege (8) auf einem Hubbalken (5, 7) und/oder einem Festbalken (4, 6) angeordnet sind.
- Hubbalkenofen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Hub- und die Festbalken (4, 5) in Abschnitte (6, 7) unterteilt sind.
- Hubbalkenofen nach Anspruch 6, dadurch gekennzeichnet, daß mehrere Tragstege (8) auf einem Abschnitt (6, 7) angeordnet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4343675 | 1993-12-21 | ||
| DE4343675A DE4343675A1 (de) | 1993-12-21 | 1993-12-21 | Hubbalkenofen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0660061A1 EP0660061A1 (de) | 1995-06-28 |
| EP0660061B1 true EP0660061B1 (de) | 1999-03-10 |
Family
ID=6505665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94120220A Expired - Lifetime EP0660061B1 (de) | 1993-12-21 | 1994-12-20 | Hubbalkenofen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0660061B1 (de) |
| AT (1) | ATE177526T1 (de) |
| DE (1) | DE4343675A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19710870A1 (de) * | 1997-03-15 | 1998-09-17 | Techint Italimpianti Deutschla | Hubbalkenofen |
| AT409670B (de) | 2001-01-15 | 2002-10-25 | Hertwich Engineering Gmbh | Hubbalkenförderer für einen durchlaufofen zum erwärmen von aluminiumbarren |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2039508C3 (de) * | 1970-08-08 | 1973-12-06 | Huettenwerk Oberhausen Ag, 4200 Oberhausen | Stoßofen |
| IT1052862B (it) * | 1975-01-11 | 1981-07-20 | Krupp Ag Huettenwerke | Elemento tubolare portante per forni per trattamenti termici |
| DE3434356C2 (de) * | 1984-09-19 | 1986-01-23 | Engels, Paul, 4030 Ratingen | Aufsatzstücke für gekühlte Tragrohre in Erwärmungsöfen |
| DE4133698A1 (de) * | 1991-10-11 | 1993-04-15 | Italimpianti Deutschland Gmbh | Hubbalkenofen |
| DE4203595C2 (de) * | 1992-02-10 | 2001-07-19 | Loi Thermprocess Gmbh | Vorrichtung zum Abstützen von Einsatzgut in einem Erwärmungsofen |
| IT1261896B (it) * | 1993-02-03 | 1996-06-03 | Stefano Deplano | Forno a longheroni per il riscaldo accelerato di billette, o simili. |
-
1993
- 1993-12-21 DE DE4343675A patent/DE4343675A1/de not_active Withdrawn
-
1994
- 1994-12-20 AT AT94120220T patent/ATE177526T1/de not_active IP Right Cessation
- 1994-12-20 EP EP94120220A patent/EP0660061B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE177526T1 (de) | 1999-03-15 |
| DE4343675A1 (de) | 1995-06-22 |
| EP0660061A1 (de) | 1995-06-28 |
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