DE2805098A1 - Water or steam cooled slide tube for moving hearth furnaces - with ceramic shell segments fastened interchangeably to the backing - Google Patents
Water or steam cooled slide tube for moving hearth furnaces - with ceramic shell segments fastened interchangeably to the backingInfo
- Publication number
- DE2805098A1 DE2805098A1 DE19782805098 DE2805098A DE2805098A1 DE 2805098 A1 DE2805098 A1 DE 2805098A1 DE 19782805098 DE19782805098 DE 19782805098 DE 2805098 A DE2805098 A DE 2805098A DE 2805098 A1 DE2805098 A1 DE 2805098A1
- Authority
- DE
- Germany
- Prior art keywords
- shell segments
- tube
- water
- joint
- interchangeably
- 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.)
- Granted
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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/022—Skids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
Abstract
Description
FEUERFEST UMMANTELTES GLEITROHR FÜR STOSS- ODER HUB- FIRE-RESISTANT COVERED SLIDING TUBE FOR PUSH OR LIFTING
HERDÖFEN Die Erfindung geht alls von einem wasser- oder dampfgekühlten Gleitrohr fjir Stoß- oder Hubherdöfen,auf dem eine wärmeiso-Lierende Ummantelung aus vorgefertigten keramischen Schalensegmenten nachgiebig und auswechselbar verankert ist im Bereich der Trennfuge zwischen axial benachbarten Schalensegmenten. STOVES The invention is based on a water-cooled or steam-cooled one Slide tube for pusher or lifting hearth furnaces on which a heat-insulating jacket made of prefabricated ceramic shell segments, flexible and replaceable anchored is in the area of the parting line between axially adjacent shell segments.
Eine ähnliches Rohr ist bekannt aus der Offenlegungsschrift 1 953 350 und hat den Vorteil, daß nur seine Verschleißteile ausgewechselt werden müssen, welche die das tragende Rohr gegereberhitzung schützende Ummantelung bilden. Zum Auswechseln eines Schalensegments müssen beiderseits U-förmige und T-förmig geschlitzte Halteeisen von Kopfstißen als Ankern abgezogen werden, nach Entfernung einer sie gegen ttberhitzung schützenden die Verbindungsrille ausfüllenden Gußmasse.A similar tube is known from laid-open specification 1 953 350 and has the advantage that only its wearing parts have to be replaced, which form the jacket protecting the supporting pipe against overheating. To the Exchange A shell segment must have U-shaped and T-shaped slotted holding irons on both sides can be removed from head butts as anchors after removing them to prevent them from overheating protective casting compound filling the connecting groove.
Dabei besteht die Gefahr einer Beschädigung der U-förmigen Halteeisen,
zumal diese selbst von den Kopfankern nach längerer Betriebszeit nur noch
Ferner müssen bei der bekannten Ummantelung die Segmentschalen in Umfangsrichtung des Rohres mindestens dreifach unterteilt sein; anderenfalls nämlich wäre die erforderliche zwangfreie Nachgiebigkeit in Umfangsrichtung gegenüber dem betrieblichen Temperaturgang des Rohres nicht gewährleistet, sondern das zwar sehr temperaturbeständige aber spröde keramische Material würde brechen.Furthermore, in the known sheathing, the segment shells in Be divided at least three times in the circumferential direction of the pipe; otherwise namely would be the required unconstrained resilience in the circumferential direction compared to the operational temperature variation of the pipe is not guaranteed, but very much temperature-resistant but brittle ceramic material would break.
Zur Vermeidung dieser Nachteile wird erfindungsgemäß bei einem Gleitrohr der eingangs erwähnten Gattung vorgeschlagen, daß die Anker Stege sind, beiderseits der Gleitschiene je auf den beiden oberen Quadranten des Rohres achsparallel auf dieses geschweißt, daß die Schalensegmente Halbschalen sind, die an ihrer oberen axialen Stoßkante zur Gleitschiene eine von hydraulisch abbindender Gußmasse gefüllte Fuge und im Eingriffsbereich der Anker mit allseitigem Übermaß Nuten aussparen, wobei unmittelbar auf das Gleitrohr eine Bandage aus einem Fließ gewickelt ist, welches aus A1203 und/oder SiO2-Fasern besteht.To avoid these disadvantages, according to the invention, a sliding tube of the type mentioned at the outset suggested that the anchors are webs on both sides of the slide rail on the two upper quadrants of the tube, axially parallel this welded that the shell segments are half-shells attached to their upper axial abutting edge to the slide rail is filled with a hydraulically setting casting compound Recess joints and grooves in the engagement area of the anchors with oversize on all sides, being directly on the sliding tube a bandage from a flow is wound, which consists of A1203 and / or SiO2 fibers.
Die erfindungsgemäße Ummantelung besteht also aus nur zwei Halbschalen je Längenabschnitt, welche mit ihren Nuteh einfach beiderseits der Gleitschiene auf die stegförmigen Anker gehängt werden, ohne Zwischenschaltung von Halteeisen, welche auf den Ankern festkorrodieren könnten.The casing according to the invention therefore consists of only two half-shells each length section, which with their Nuteh simply on both sides of the slide rail can be hung on the bar-shaped anchors without the interposition of holding irons, which could corrode on the anchors.
Dadurch ist der Aufwand für die Herstellung, Montage und vor allem für das Auswechseln einzelner Schalensegmente sehr verringert. Das Bewegungsspiel zwischen deren Nuten und den entsprechenden Ankern in Verbindung mit der unterlegten Bandage gewährleistet eine allseitige zwangfreie Nachgiebigkeit gegenüber dem Temperaturgang des Gleitrohres, aber zugleich auch einen Schutz gegen Stoßbeanspruchung des Schalenmaterials durch die im Ofen zu behandelnden Werkstücke, und einen verbesserten Wärmeschutz des Gleitrohres.This reduces the effort for manufacturing, assembly and most of all very reduced for replacing individual shell segments. The movement game between their grooves and the corresponding anchors in conjunction with the underlaid The bandage guarantees all-round unconstrained flexibility in relation to the temperature range of the sliding tube, but at the same time protection against shock loads on the shell material thanks to the workpieces to be treated in the furnace, and improved thermal protection of the sliding tube.
Die Erfindung möge anhand des in den Figuren schematisch dargestellten Ausführungsbeispiels veranschaulicht werden. Es zeigen: Fig. 1 schaubildlich ein teilweise ummanteltes Gleitrohr, Fig. 2 in Seitenansicht eine Ummantelungseinheit mit den angrenzenden Verbindungselementen und Fig. 3 eine Stirnansicht zu Fig. 1.The invention may be based on what is shown schematically in the figures Exemplary embodiment are illustrated. The figures show: FIG. 1 diagrammatically partially sheathed sliding tube, FIG. 2 shows a sheathing unit in side view with the adjoining fasteners and Fig. 3 is an end view to Fig. 1.
Auf das Gleitrohr 1 sind die Gleitschiene 2 und die stegförmigen Anker 3 geschweißt, auf welche in mit Übermaß ausgeführten Nuten 4 beiderseits je ein keramisches Sch.alensegment 5 gehängt ist, über einer vorher aufgewickelten Bandage 6 aus Al203 und/oder SiO2-Fasern, durech welche sich dabei rlie Anker 3 driickon.The slide rail 2 and the web-shaped anchor are on the slide tube 1 3 welded, on which grooves 4 designed with oversize on both sides one each ceramic shell segment 5 is hung over a previously wound bandage 6 made of Al203 and / or SiO2 fibers, through which the anchor 3 is pressed.
Die große Herstellungstoleranzen gestattenden beiderseits der Gleitschiene 2 verbleibenden Fugen sind mit hydraulisch abbindender Gußmasse 7 ausgefüllt.The large manufacturing tolerances allow both sides of the slide 2 remaining joints are filled with hydraulically setting casting compound 7.
LeerseiteBlank page
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782805098 DE2805098C2 (en) | 1978-02-07 | 1978-02-07 | Refractory coated guide tube for pusher or lifting hearth furnaces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782805098 DE2805098C2 (en) | 1978-02-07 | 1978-02-07 | Refractory coated guide tube for pusher or lifting hearth furnaces |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2805098A1 true DE2805098A1 (en) | 1979-08-09 |
DE2805098C2 DE2805098C2 (en) | 1983-09-15 |
Family
ID=6031333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782805098 Expired DE2805098C2 (en) | 1978-02-07 | 1978-02-07 | Refractory coated guide tube for pusher or lifting hearth furnaces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2805098C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000073242A1 (en) * | 1999-05-27 | 2000-12-07 | Isolcover S.R.L. | Refractory coating for cooled pipes |
EP1956327A1 (en) * | 2007-02-06 | 2008-08-13 | Pratt & Whitney Rocketdyne Inc. | Gasifier liner |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2910775C2 (en) * | 1979-03-19 | 1984-12-06 | Adolf A. Fleischmann Inh. Werner Fleischmann, 6000 Frankfurt | Water- or steam-cooled slide tube for pusher or lifting hearth furnaces |
DE3428315A1 (en) * | 1984-08-01 | 1986-02-13 | Purmetall GmbH & Co KG, 4200 Oberhausen | Process for producing refractory components |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2113666A1 (en) * | 1970-03-23 | 1971-12-09 | British Iron Steel Research | Slide rails or bars for openers |
DE7424159U (en) * | 1974-10-24 | Plibrico Co Gmbh | ||
DE2421249A1 (en) * | 1973-05-03 | 1974-11-14 | Morgan Refractories Ltd | FIREPROOF COATING PART |
DE2623197A1 (en) * | 1976-05-24 | 1977-12-08 | Plibrico Co Gmbh | Double-layer refractory covering for furnace supports - has the inner layer cast in combustible sheath surrounded by keyed blocks |
-
1978
- 1978-02-07 DE DE19782805098 patent/DE2805098C2/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7424159U (en) * | 1974-10-24 | Plibrico Co Gmbh | ||
DE2113666A1 (en) * | 1970-03-23 | 1971-12-09 | British Iron Steel Research | Slide rails or bars for openers |
DE2421249A1 (en) * | 1973-05-03 | 1974-11-14 | Morgan Refractories Ltd | FIREPROOF COATING PART |
DE2623197A1 (en) * | 1976-05-24 | 1977-12-08 | Plibrico Co Gmbh | Double-layer refractory covering for furnace supports - has the inner layer cast in combustible sheath surrounded by keyed blocks |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000073242A1 (en) * | 1999-05-27 | 2000-12-07 | Isolcover S.R.L. | Refractory coating for cooled pipes |
EP1956327A1 (en) * | 2007-02-06 | 2008-08-13 | Pratt & Whitney Rocketdyne Inc. | Gasifier liner |
US8771604B2 (en) | 2007-02-06 | 2014-07-08 | Aerojet Rocketdyne Of De, Inc. | Gasifier liner |
Also Published As
Publication number | Publication date |
---|---|
DE2805098C2 (en) | 1983-09-15 |
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Legal Events
Date | Code | Title | Description |
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OB | Request for examination as to novelty | ||
OC | Search report available | ||
OD | Request for examination | ||
8181 | Inventor (new situation) |
Free format text: MITTEREGGER, HEINZ, ING., WARTH, AT |
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AG | Has addition no. |
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D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
AG | Has addition no. |
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8339 | Ceased/non-payment of the annual fee |