WO2002088276A1 - A wall structure for use in a furnace or the similar and a method for its construction - Google Patents
A wall structure for use in a furnace or the similar and a method for its construction Download PDFInfo
- Publication number
- WO2002088276A1 WO2002088276A1 PCT/NO2002/000156 NO0200156W WO02088276A1 WO 2002088276 A1 WO2002088276 A1 WO 2002088276A1 NO 0200156 W NO0200156 W NO 0200156W WO 02088276 A1 WO02088276 A1 WO 02088276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall structure
- brick
- bricks
- accordance
- wall
- Prior art date
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
- F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
- F27B13/02—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge of multiple-chamber type with permanent partitions; Combinations of furnaces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/02—Brickwork, e.g. casings, linings, 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
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
-
- 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
- F27D3/04—Ram or pusher apparatus
Definitions
- the present invention concerns a wall structure for use in a furnace or the similar, for example a furnace for calcination of carbon bodies.
- the invention also concerns a method for constructing such a wall structure.
- the invention relates in particular, but not exclusively, to walls or partition walls with internal flue gas ducts, i.e. flue walls.
- Furnaces for calcination of carbon blocks to be used in the production of aluminium in accordance with the Hall-Heroult process may be designed with several sections arranged in two parallel rows. Such furnaces have a combustion cycle which is moved in relation to the sections as the carbon material is calcinated.
- the sections are mutually and successively linked by ducts which conduct hot combustion gas or flue gas through the furnace structure.
- Each section can be divided into several smaller pits by means of flue walls or cassette walls. These flue walls are provided with several flue gas ducts, through which hot gas is conducted in order to be able to transfer heat efficiently to objects placed in the sections so that the calcination process becomes as homogeneous as possible.
- CH 258544 shows a furnace in which a partition wall may comprise flue gas ducts (fig. 3).
- a partition wall may comprise flue gas ducts (fig. 3).
- an attempt is made to absorb longitudinal changes in the partition wall as a consequence of thermal heating/cooling in vertical joints between each brick, while the wall ends are fixed in place.
- One problem which will arise over time when using this principle for expansion/contraction is that particles from material placed in the furnace may be deposited in the joints and prevent the intended expansion fully or partially. If the wall has a certain clearance between where it is fixed and the rest of the structure of the furnace, this clearance will gradually be used up as the partition wall is extended permanently as a consequence of the stated mechanism. Over time, therefore, a structure of this type may bow and lose its parallelism.
- Fig. 1 shows, in sections from above, details concerning the fixing of one end of a partition wall in relation to adjacent brickwork
- Fig. 2 shows, in sections from above, two parallel partition walls fixed at their ends to adjacent brickwork
- Fig. 3 shows a detail of the fixing of the ends of the partition walls
- Fig. 4 shows a detail of the end of the partition wall
- Fig. 5 shows another detail of the end of the partition wall
- FIG. 6 shows a detail of the structure of the partition wall.
- Figure 1 shows, in sections from above, brickwork 1 , which may be a head wall in a furnace which may be built up from a row of individual bricks.
- the brickwork shown in the figure is adapted for the fixing of partition walls 3', 3", 3"', 3"" (only four are partially shown in the figure).
- the connection 2 between the partition wall 3' and the brickwork 1 is shown in an enlarged section in the lower part of the figure.
- This section shows an end brick 4 in the partition wall 3', a wedge brick 6 and an anchor brick 5 which constitutes part of the brickwork 1 and is permanently fixed to it.
- the wedge brick 6 may expediently have a rectangular cross-section and have side surfaces 10, 10' which interact with the respective surfaces 8, 9 and 8', 9' of the end brick and anchor brick.
- the anchor brick 5 and end brick 4 are mutually movable and expansion of the partition wall of which the end brick is a part is permitted via the expansion joint 7 between the end surface 14 of the wedge brick and the surface 11 of the end brick. Contraction, which may occur in the wall structure, can be compensated for in that the end brick 4 is permitted to move away from the anchor brick 5 while the connection via the wedge brick 6 is maintained.
- the connection may consist of only two elements, i.e. without the wedge brick, in that a shape equivalent to the wedge brick is made as an integral part of either the anchor brick or end brick.
- the size of the expansion joint 7 is adjusted according to experience, depending on the brick material, operating conditions with the application in question or other conditions. The same will apply to the longitudinal contact in the connection 2 with regard to contraction of the wall structure.
- connection 2 It is expedient for the interacting surfaces in the connection 2 to run along the full vertical extent of the partition wall, i.e. all courses of bricks in the partition wall and equivalent courses in the brickwork are designed in the way shown in the figure.
- One advantage of such a design is that variations in the length of the wall structure, including in its vertical direction, can be absorbed in the connection 2.
- the adjacent surfaces 13, 12 on the anchor brick 5 and end brick 4 respectively are designed with chamfor so that the surfaces create a V-shape.
- the aim of such a V-shape is that particle material which may lie against the partition wall and which consequently may be pressed in against the connection can be drained out of this area in connection with an expansion (extension) of the partition wall.
- the surfaces it is also advantageous for the surfaces to have a V-shape during emptying/cleaning of the section.
- the angle between the surfaces may expediently be 30° or more. The size of this angle will, among other things, depend on the material to be drained away and the surface pressure for which the surfaces are designed.
- the connection 2 will comprise surfaces which form a seal to the extent that no problems will arise with the penetration of material into the connection during a contraction-related movement of the end brick 4.
- Figure 2 shows, in sections from above, two parallel partition walls 114, 115 which are fixed at their ends to adjacent brickwork 101 , 102.
- the connections are designed so that the anchor bricks 103, 104, 105, 106 are shaped in such a way that the wedge brick forms an integral part of the anchor brick.
- the anchor bricks thus interact directly with the adjacent end bricks 107, 108, 109, 110.
- FIG. 11 shows that the pattern for bricks in the course in partition wall 114 is different from that in partition wall 115 with regard to the design of the bricks.
- end brick 107 has one flue gas duct 111
- end brick 108 in partition wall 115 has two flue gas ducts 112, 113.
- An equivalent arrangement is shown at the other ends of the partition walls.
- brick 116 with flue gas ducts 118, 119 in partition wall 114 has the same design as brick 117 with flue gas ducts 120, 121 in partition wall 115, but the horizontal position in the respective walls is different.
- the bricks By laying alternating courses equivalent to that shown in the section of partition wall 114 and that shown in the section of partition wall 115 over each other when building up the partition walls, the bricks will be anchored to each other via courses of bricks above and below each other by means of interacting contact elements, among other things by means of the design of the flue gas ducts. This will be illustrated in further detail in figures 4-6.
- Figure 3 shows details of the fixing of the ends of the partition walls, more precisely an expedient design of an anchor brick.
- the upper part of the figure shows, in perspective, the lower side of a brick 150, while the lower part of the figure shows, in perspective, the upper side of an equivalent brick 150'.
- the bricks' external shapes correspond to that shown in earlier figures, but figure 3 also shows interacting elements which are designed to ensure mutual retention between the different courses of anchor bricks.
- anchor brick 150 is provided with rotationally symmetrical recesses 151 which interact with the rotationally symmetrical bosses 151' in anchor brick 150'.
- the interacting elements may have a semi-spherical shape or rounded cone shape. However, other geometrical shapes may also be used.
- the bricks' protruding parts 153, 153' (equivalent to the integral wedge brick in 6 in figure 1 ) are provided with interacting elements 152, 152'.
- the element 152 consists of a rotationally symmetrical recess, while the equivalent element 152' consists of a rotationally symmetrical protrusion. It is expedient for these elements to have a mainly cylindrical shape.
- a structure of anchor bricks as shown here will produce stable brickwork in which forces which may arise locally in, for example, one or more bricks, can be distributed partially to bricks in courses above and below.
- Figure 4 shows a brick equivalent to brick 107 as shown in figure 2.
- the upper part of the figure shows the brick from above.
- the lower part of the figure shows the brick in a section from the side.
- the figure shows the flue gas duct 111 , which, at its top, has a raised end 200 and, at its lower part, has a recess 201.
- the raised end 200 is adapted to an equivalent recess in a brick designed to be placed on brick 107, while the recess 201 is designed to fit on a raised part of an underlying brick (not shown).
- the raised ends and recesses will contribute to the flue gas duct having a sealed connection between the courses and they will contribute to a good mutual anchoring of the bricks.
- the brick 107 may be provided with transverse tongue 202, 202' at its top and equivalent transverse recesses 203 at its bottom for further stabilisation of the brick.
- Figure 5 shows a brick equivalent to brick 108 in figure 2.
- the upper part of the figure shows the brick from above and the lower part of the figure shows the brick in a section from the side.
- the figure shows flue gas ducts 112, 113, which, at their top, have raised ends 250, 251 and, at their lower parts, have recesses 252, 253.
- the raised ends 250, 251 are adapted to equivalent recesses in one or two bricks designed to be placed on brick 108, while the recesses 252, 253 are designed to fit on raised parts of one or two underlying bricks (not shown).
- the raised ends and recesses will contribute to the flue gas ducts having a sealed connection between the courses and they will contribute to a good mutual anchoring of the bricks.
- the brick 108 may be provided with transverse tongues 254, 254' at its top and equivalent transverse recesses 255 at its bottom for further stabilisation of the brick.
- Figure 6 shows a brick equivalent to brick 116 in figure 2.
- the upper part of the figure shows the brick from above and the lower part of the figure shows the brick in a section from the side.
- the figure shows flue gas ducts 118, 119, which, at their top, have raised ends 300, 301 and, at their lower parts, have recesses 302, 303.
- the raised ends 300, 301 are adapted to equivalent recesses in one or two bricks designed to be placed on brick 116, while the recesses 302, 303 are designed to fit on raised parts of one or two underlying bricks (not shown).
- the raised ends and recesses will contribute to the flue gas ducts having a sealed connection between the courses and they will contribute to a good mutual anchoring of the bricks. However, it may be necessary to use mortar or a sealing compound for further stabilisation of the connections between the bricks.
- partition walls with flue gas ducts Although the examples show partition walls with flue gas ducts, equivalent advantages and principles to those in the present invention may also be exploited for wall structures without ducts running through them, where the structure is exposed to large thermal loads in another way. This may, for example, be the case for wall structures installed inside a furnace chamber in order to divide the chamber.
- the contact elements are designed so that protrusions are arranged on the top of the bricks, while recesses are arranged on the bottom of the bricks.
- the protrusions were arranged on the bottom and the recesses on the top or possibly if a combination of these were used.
- the movements which arise in the wall structure are mainly absorbed at at least one end, which may be fixed against other brickwork in a furnace. A certain relative movement must also be permitted between the wall structure and its underlying structure, for example a fixed floor structure.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Baking, Grill, Roasting (AREA)
- Tunnel Furnaces (AREA)
- Cookers (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02720681T ATE302251T1 (en) | 2001-04-26 | 2002-04-24 | WALL CONSTRUCTION FOR USE IN AN OVEN |
CA2445417A CA2445417C (en) | 2001-04-26 | 2002-04-24 | A wall structure for use in a furnace or the similar and a method for its construction |
EP02720681A EP1385920B1 (en) | 2001-04-26 | 2002-04-24 | A wall structure for use in a furnace |
DE60205607T DE60205607T2 (en) | 2001-04-26 | 2002-04-24 | WALL CONSTRUCTION FOR USE IN AN OVEN |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20012044 | 2001-04-26 | ||
NO20012044A NO313897B1 (en) | 2001-04-26 | 2001-04-26 | Wall structure for use in a stove or equivalent and method of forming the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002088276A1 true WO2002088276A1 (en) | 2002-11-07 |
Family
ID=19912401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2002/000156 WO2002088276A1 (en) | 2001-04-26 | 2002-04-24 | A wall structure for use in a furnace or the similar and a method for its construction |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1385920B1 (en) |
AT (1) | ATE302251T1 (en) |
CA (1) | CA2445417C (en) |
DE (1) | DE60205607T2 (en) |
NO (1) | NO313897B1 (en) |
WO (1) | WO2002088276A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101363685B (en) * | 2007-08-09 | 2010-04-07 | 沈阳铝镁设计研究院 | Anode roasting furnace for aluminum |
CN102042753A (en) * | 2010-12-22 | 2011-05-04 | 本钢板材股份有限公司 | Tunnel furnace flue and making method thereof |
WO2011153600A1 (en) * | 2010-06-09 | 2011-12-15 | Magnesita Refratários S.A. | Refractory lining process for anode firing furnaces |
CN108375305A (en) * | 2018-05-25 | 2018-08-07 | 河南龙成煤高效技术应用有限公司 | A kind of stove liner expands with heat and contract with cold collocation structure and stove |
WO2021067531A1 (en) * | 2019-10-02 | 2021-04-08 | Fosbel, Inc. | Methods and systems for construction and/or repair of coke oven walls |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH258544A (en) * | 1946-08-26 | 1948-12-15 | Soc D Tech Ind | Coke oven. |
WO1992022780A1 (en) * | 1991-06-12 | 1992-12-23 | Riedhammer Gmbh Und Co. Kg | Partition wall for a multi-compartment furnace |
US5704781A (en) * | 1994-09-17 | 1998-01-06 | Riedhammer Gmbh And Co. Kg | Refractory wall brick for a heating channel of a ring pit furnace |
-
2001
- 2001-04-26 NO NO20012044A patent/NO313897B1/en not_active IP Right Cessation
-
2002
- 2002-04-24 EP EP02720681A patent/EP1385920B1/en not_active Expired - Lifetime
- 2002-04-24 CA CA2445417A patent/CA2445417C/en not_active Expired - Lifetime
- 2002-04-24 AT AT02720681T patent/ATE302251T1/en not_active IP Right Cessation
- 2002-04-24 WO PCT/NO2002/000156 patent/WO2002088276A1/en not_active Application Discontinuation
- 2002-04-24 DE DE60205607T patent/DE60205607T2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH258544A (en) * | 1946-08-26 | 1948-12-15 | Soc D Tech Ind | Coke oven. |
WO1992022780A1 (en) * | 1991-06-12 | 1992-12-23 | Riedhammer Gmbh Und Co. Kg | Partition wall for a multi-compartment furnace |
US5704781A (en) * | 1994-09-17 | 1998-01-06 | Riedhammer Gmbh And Co. Kg | Refractory wall brick for a heating channel of a ring pit furnace |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101363685B (en) * | 2007-08-09 | 2010-04-07 | 沈阳铝镁设计研究院 | Anode roasting furnace for aluminum |
WO2011153600A1 (en) * | 2010-06-09 | 2011-12-15 | Magnesita Refratários S.A. | Refractory lining process for anode firing furnaces |
CN102042753A (en) * | 2010-12-22 | 2011-05-04 | 本钢板材股份有限公司 | Tunnel furnace flue and making method thereof |
CN108375305A (en) * | 2018-05-25 | 2018-08-07 | 河南龙成煤高效技术应用有限公司 | A kind of stove liner expands with heat and contract with cold collocation structure and stove |
CN108375305B (en) * | 2018-05-25 | 2024-01-23 | 河南龙成煤高效技术应用有限公司 | Furnace liner thermal expansion and contraction compensation structure and furnace |
WO2021067531A1 (en) * | 2019-10-02 | 2021-04-08 | Fosbel, Inc. | Methods and systems for construction and/or repair of coke oven walls |
US11441079B2 (en) | 2019-10-02 | 2022-09-13 | Fosbel, Inc. | Methods and systems for construction and/or repair of coke oven walls |
Also Published As
Publication number | Publication date |
---|---|
NO20012044D0 (en) | 2001-04-26 |
EP1385920A1 (en) | 2004-02-04 |
DE60205607D1 (en) | 2005-09-22 |
NO20012044L (en) | 2002-10-28 |
ATE302251T1 (en) | 2005-09-15 |
DE60205607T2 (en) | 2006-06-08 |
EP1385920B1 (en) | 2005-08-17 |
CA2445417C (en) | 2011-07-05 |
NO313897B1 (en) | 2002-12-16 |
CA2445417A1 (en) | 2002-11-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7241722B2 (en) | Coke oven with monolithic component structure | |
CA2445417C (en) | A wall structure for use in a furnace or the similar and a method for its construction | |
KR20170084281A (en) | Monolithic refractory crown and rider arches for glass furnace regenerators and glass furnace regenerators including the same | |
AU2008250641B2 (en) | Ring furnace including baking pits with a large horizontal aspect ratio and method of baking carbonaceous articles therein | |
CN105924024A (en) | Fireproof brick for lining of limestone vertical kiln | |
US5466150A (en) | Sagger wall for a ring pit furnace | |
CN110205143B (en) | Pouring masonry mixed structure for dry quenching of furnace body cooling section structure and preparation method thereof | |
US3092051A (en) | Basic open hearth roof construction | |
CN103808147B (en) | A kind of cylindrical shape turns round the anchoring process of hot equipment kiln lining | |
CN220062576U (en) | C-type double-chamber kiln inner ring masonry structure | |
US1896669A (en) | Furnace floor structure | |
EP2851640A1 (en) | Refractory ceramic lining brick and corresponding refractory ceramic lining | |
EP0786067B1 (en) | Heat insulating arrangement | |
CN116608696A (en) | Masonry method of C-type double-chamber kiln inner ring masonry structure | |
RU80546U1 (en) | LAYER PLATE | |
US2105804A (en) | Arch and wall construction | |
CN220708082U (en) | Anti-drop structure of refractory material in cement kiln | |
EP0090449B1 (en) | Coke oven battery | |
SU1030396A1 (en) | Heating partition wall of coking oven | |
WO2011159184A1 (en) | Method for repairing a refractory lining of coke batteries | |
EP1409939B1 (en) | A method for creating a thermally stable base structure and furnace comprising a thermally stable structure | |
SU1330440A1 (en) | Brickwork for regenerator packing | |
SU1765153A1 (en) | Coke oven overlap | |
US1685568A (en) | Tile-anchoring device | |
RU2393402C9 (en) | Cartridge chamber of pit-type furnace, as well as shaped brick for it, and manufacturing method of shaped brick |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2445417 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002720681 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002720681 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002720681 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |