SE520632C2 - Method and apparatus for insulating furnace - Google Patents
Method and apparatus for insulating furnaceInfo
- Publication number
- SE520632C2 SE520632C2 SE0104171A SE0104171A SE520632C2 SE 520632 C2 SE520632 C2 SE 520632C2 SE 0104171 A SE0104171 A SE 0104171A SE 0104171 A SE0104171 A SE 0104171A SE 520632 C2 SE520632 C2 SE 520632C2
- Authority
- SE
- Sweden
- Prior art keywords
- furnace
- elements
- insulating
- insulating material
- volume
- Prior art date
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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
- F27D1/0009—Comprising ceramic fibre elements
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
- F27D1/145—Assembling elements
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
- F27D1/045—Bricks for lining cylindrical bodies, e.g. skids, tubes
- F27D2001/047—Lining of cylindrical vessels
-
- 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
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0036—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising inflatable or extendable parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
70 75 20 25 30 35 520 652 Föreliggande uppfinning hänför sig sålunda till ett förfaran- de för isolering av en ugn med hjälp av fristående element av isoleringsmaterial, vars volyni minskar vid hög temperatur, där ugnens uppvärmda volym är utformad som en upprättstàende cylinder, kring vilkens mantelyta elementen av isoleringsma- terial är placerade sida vid sida, vart och ett utsträckande sig i nämnda cylinders längsgående riktning, och utmärks av att så att isoleringselementen är kilformade och. placeras kilen pekar in mot ugnens uppvärmda volym, att isoleringsele- menten bringas att röra sig i kilens riktning, när isole- ringselementens volym minskar, att isoleringselementen bring- as att närma sig varandra i en riktning vinkelrätt mot ele- mentens rörelseriktning samt att tätheten hos ugnens isole- ring därigenom bringas att upprätthàllas vid uppvärmning. The present invention thus relates to a method for insulating a furnace by means of free-standing elements of insulating material, the volume of which decreases at high temperature, where the heated volume of the furnace is designed as an upright cylinder, around the mantle surface of which the elements of insulating material are placed side by side, each extending in the longitudinal direction of said cylinders, and is characterized in that the insulating elements are wedge-shaped and. the wedge is placed pointing towards the heated volume of the furnace, that the insulating elements are caused to move in the direction of the wedge, when the volume of the insulating elements decreases, that the insulating elements are brought closer in a direction perpendicular to the direction of movement of the elements and that the density of the insulation of the oven is thereby maintained during heating.
Vidare hänför sig uppfinningen till en anordning av det slag och med de huvudsakliga särdrag som anges i patentkravet 6.Furthermore, the invention relates to a device of the type and with the main features stated in claim 6.
Nedan beskrivs uppfinningen närmare, delvis i samband med i bifogade ritningar visade utföringsexempel av uppfinningen, där: Fig. l är ett radiellt tvärsnitt av en föredragen utförings- form av uppfinningen; och Fig. 2 är en sidovy av en föredragen utföringsform av uppfin- ningen.The invention is described in more detail below, partly in connection with exemplary embodiments of the invention shown in the accompanying drawings, in which: Fig. 1 is a radial cross-section of a preferred embodiment of the invention; and Fig. 2 is a side view of a preferred embodiment of the invention.
I Fig. 1 och i Fig. 2 visas en ugn enligt en och samma utfö- ringsform av uppfinningen ur olika perspektiv. Ugnen är kön- struerad så att den uppvärmda volymen. 1 är formad som en upprättstående cylinder, vars ytor täcks av isoleringsmateri- al 2. Isoleringsmaterialet är anordnat i fristående isole- ringselement 3, vilka är placerade sida vid sida längs med sagda cylinders längsgående axel.Fig. 1 and Fig. 2 show an oven according to one and the same embodiment of the invention from different perspectives. The oven is designed so that the heated volume. 1 is formed as an upright cylinder, the surfaces of which are covered by insulating material 2. The insulating material is arranged in free-standing insulating elements 3, which are placed side by side along the longitudinal axis of said cylinders.
K.\Pa\em\0101 lóseßlulföreläggande doc, 2003-04-23 10 75 20 25 30 35 520 632 Isoleringsmaterialet består lämpligen av aluminiumoxid eller annat motsvarande lämpligt material. Ett material är alumini- umoxidtegel med bakisolering av keramisk fiberboard.K. \ Pa \ em \ 0101 lóseßlulföreläggande doc, 2003-04-23 10 75 20 25 30 35 520 632 The insulating material preferably consists of alumina or other corresponding suitable material. One material is aluminum oxide brick with back insulation of ceramic fiberboard.
Dessutoni är de individuella isoleringselementen i längsled uppdelade i flera fristående block 4, där vart och ett av blocken är staplat på höjden till att forma ett helt isole- ringselement.In addition, the individual insulating elements are longitudinally divided into several free-standing blocks 4, where each of the blocks is stacked in height to form a complete insulating element.
Otätheter" bildas vid uppvärmning' av isoleringselementen 3, till följd av nmterialkrympning, på två sätt. Dels krymper isoleringsblocken 4 i axiell riktning, vilket ger upphov till springor mellan de individuella blocken. Dels krymper isole- ringselementen 3 i radiell riktning, vilket ger upphov till springor mellan elementen.Leaks "are formed when the insulating elements 3 are heated, due to material shrinkage, in two ways. On the one hand, the insulating blocks 4 shrink in the axial direction, which gives rise to gaps between the individual blocks. On the other hand, the insulating elements 3 shrink in the radial direction, which gives rise to gaps between the elements.
Den första typen av otätheter tätas med hjälp av gravita- tionskraften 5, vilken pressar isoleringsblocken. nedåt och samman. Den andra typen av otätheter är ett större problem, men som löses genom föreliggande uppfinning.The first type of leaks are sealed by means of the gravitational force 5, which presses the insulation blocks. down and together. The second type of leaks is a major problem, but which is solved by the present invention.
Isoleringselementen 3 krymper vid uppvärmning av den uppvärm- da volymen l och bildar springor 6 mellan isoleringselemen- ten. Eftersom isoleringselementen är anordnade så att de fritt kan förflyttas i radiell led, är det möjligt att täta springorna 6 genom att skjuta isoleringselementen 3 i radiell led in mot den uppvärmda volymen. På så vis tätas isoleringen av ugnen i sin helhet, varvid värmeförlusterna minimeras.The insulating elements 3 shrink when heating the heated volume 1 and form gaps 6 between the insulating elements. Since the insulating elements are arranged so that they can be moved freely in radial direction, it is possible to seal the gaps 6 by pushing the insulating elements 3 in radial direction towards the heated volume. In this way, the insulation of the oven is sealed in its entirety, thereby minimizing heat losses.
Varje isoleringselement står i kontakt med en utvändig tryck- 7 är anordnad att anbringa ett platta 7. Denna tryckplatta inåtriktat radiellt tryck på isoleringselementet 3, med hjälp av en serie bultar 8, vilka bultar 8, när de skruvas åt, i sin tur är anordnade att anbringa ett tryck på tryckplattan 7 K>\Patem\0 l OI 1óseßlutfóreläggandedoc, 2003-04-23 70 75 20 25 520 632 relativt en fix längsgående balk 9. Det finns ett antal av dylika balkar 9 placerade ekvidistant runt ugnen, där varje balk 9 är avsedd att förskjuta ett isoleringselement 6 i radiell riktning. Var och en av balkarna 9 fixeras i sitt läge utanför tryckplattan av en övre 10 och en undre ll vä- sentligen cirkulär krans för det fall ugnen är väsentligen cirkulär. För det fall ugnen har annan form än cirkulär kan kransarna ha en form motsvarande ugnens form.Each insulating element is in contact with an external pressure 7 is arranged to apply a plate 7. This pressure plate has an inwardly directed radial pressure on the insulating element 3, by means of a series of bolts 8, which bolts 8, when screwed on, are in turn arranged to apply a pressure to the pressure plate 7 K> \ Patem \ 0 l OI 1óseßlutfóreläggandedoc, 2003-04-23 70 75 20 25 520 632 relative to a fixed longitudinal beam 9. There are a number of such beams 9 placed equidistantly around the furnace, where each beam 9 is intended to displace an insulating element 6 in the radial direction. Each of the beams 9 is fixed in its position outside the pressure plate by an upper 10 and a lower 11 substantially circular ring in case the furnace is substantially circular. In case the oven has a shape other than circular, the rings can have a shape corresponding to the shape of the oven.
Balkarna 9 liksom nämnda kransar lO, ll är lämpligen utförda i stål eller aluminium.The beams 9 as well as said rings 10, 11 are suitably made of steel or aluminum.
Således kan ugnsoperatören under uppvärmningens gång succes- sivt dra åt bultarna 8, så att isoleringselementen 13 för- skjuts radiellt inåt relativt ugnen, och därigenom säkerstäl- la att isoleringens täthet upprätthålls genom hela uppvärm- ningsproceduren. Tätheten. består även när uppvärmning till önskad temperatur uppnåtts, vilket garanterar att värmeför- lusterna minimeras.Thus, during the heating operation, the furnace operator can successively tighten the bolts 8, so that the insulating elements 13 are displaced radially inwards relative to the furnace, thereby ensuring that the tightness of the insulation is maintained throughout the heating procedure. The density. remains even when heating to the desired temperature has been reached, which guarantees that heat losses are minimized.
Ovan har ett utföringsexempel beskrivits. Det är helt uppen- bart att fackmännen kan variera föreliggande uppfinning och ändå uppnå de fördelar och särdrag som utmärker föreliggande uppfinning.An embodiment has been described above. It is quite obvious that those skilled in the art can vary the present invention and still achieve the advantages and features which characterize the present invention.
Föreliggande uppfinning skall därför inte anses begränsad till den ovan angivna utföringsformen utan kan varieras inom dess av bifogade patentkrav angivna ram.The present invention should therefore not be construed as limited to the above-mentioned embodiment, but may be varied within the scope of the appended claims.
K \Patenl\0 I 0] 1óseßlutfèrelàggandadoc, 2003-04-23K \ Patenl \ 0 I 0] 1óseßlutfèrelàggandadoc, 2003-04-23
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0104171A SE520632C2 (en) | 2001-12-12 | 2001-12-12 | Method and apparatus for insulating furnace |
AU2002366937A AU2002366937A1 (en) | 2001-12-12 | 2002-12-06 | A method and an arrangement relating to furnace insulation. |
PCT/SE2002/002257 WO2003054464A1 (en) | 2001-12-12 | 2002-12-06 | A method and an arrangement relating to furnace insulation. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0104171A SE520632C2 (en) | 2001-12-12 | 2001-12-12 | Method and apparatus for insulating furnace |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0104171D0 SE0104171D0 (en) | 2001-12-12 |
SE0104171L SE0104171L (en) | 2003-06-13 |
SE520632C2 true SE520632C2 (en) | 2003-08-05 |
Family
ID=20286282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0104171A SE520632C2 (en) | 2001-12-12 | 2001-12-12 | Method and apparatus for insulating furnace |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002366937A1 (en) |
SE (1) | SE520632C2 (en) |
WO (1) | WO2003054464A1 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8900114A (en) * | 1989-01-18 | 1990-08-16 | Milutin Gnjatovic | METHOD FOR INSULATING AN OVEN AND OVEN MANUFACTURED BY THE METHOD |
-
2001
- 2001-12-12 SE SE0104171A patent/SE520632C2/en not_active IP Right Cessation
-
2002
- 2002-12-06 WO PCT/SE2002/002257 patent/WO2003054464A1/en not_active Application Discontinuation
- 2002-12-06 AU AU2002366937A patent/AU2002366937A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2002366937A1 (en) | 2003-07-09 |
WO2003054464A1 (en) | 2003-07-03 |
SE0104171L (en) | 2003-06-13 |
SE0104171D0 (en) | 2001-12-12 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |