US20040244944A1 - Refractory ceramic checker brick - Google Patents

Refractory ceramic checker brick Download PDF

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Publication number
US20040244944A1
US20040244944A1 US10/489,848 US48984804A US2004244944A1 US 20040244944 A1 US20040244944 A1 US 20040244944A1 US 48984804 A US48984804 A US 48984804A US 2004244944 A1 US2004244944 A1 US 2004244944A1
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US
United States
Prior art keywords
checker
checker block
wall sections
wall
block according
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.)
Abandoned
Application number
US10/489,848
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English (en)
Inventor
Stefan Bald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG reassignment REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BALD, STEFAN
Publication of US20040244944A1 publication Critical patent/US20040244944A1/en
Abandoned legal-status Critical Current

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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
    • F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
    • F27D1/042—Bricks shaped for use in regenerators
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/237—Regenerators or recuperators specially adapted for glass-melting furnaces
    • C03B5/2375—Regenerator brick design ; Use of materials therefor; Brick stacking arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping

Definitions

  • the invention relates to a refractory checker block such as is, for example, used for the checker arrangement of chambers in a glass melting furnace.
  • Hollow blocks of the type mentioned which are also referred to as chimney bricks or hollow chimney blocks, are well proven and widely used.
  • the symmetrical design of the chimney blocks makes it possible to arrange the blocks of adjacent checker planes so that they are offset in relation to each other. In this way, an even design of the checker arrangement and high stability are achieved.
  • the invention strives for a symbiosis of the above-mentioned thermal and mechanical parameters, in other words, an option for designing a checker arrangement is to be disclosed that shows how good thermal efficiency as well as the above-mentioned cleaning option can be achieved while providing good mechanical stability.
  • the invention is based on a conventional checker brick, as is for example described in DE 29 34 208 C2 or in AT 406 197 B.
  • a hollow brick is essentially rotationally symmetrical as regards its central longitudinal axis (after rotation by 90°, the same geometrical shape results).
  • Such a block is now modified as far as its geometrical shape is concerned, to the extent that it now comprises larger wall sections (wall areas comprising larger surfaces when compared to the state of the art). These larger wall sections can be made with several and/or larger recesses so as to improve the efficiency and/or to admit cleaning equipment.
  • the checker block comprising an essentially rectangular base (instead of the hitherto essentially square base).
  • the geometrical shape of the hollow block is to be such that blocks within a checker plane and in different checker planes are arbitrarily (statistically) combinable in the sense of achieving an even checker design or an even checker density.
  • One option of achieving this consists of selecting the length of the block such that it corresponds to double the width of the block minus the wall thickness of a wall. Such a brick is shown and explained in the description of the figures below.
  • the distance between central longitudinal axes of adjacement blocks in the longitudinal direction is an integral (even) multiple of the distance between central longitudinal axes of adjoining blocks in a transverse direction (perpendicular to the longitudinal direction).
  • one block of one plane is always placed on a wall section of a block in the plane below it, as will also be explained in more detail in the description of the figures.
  • the checker blocks can be arranged side-by-side and perpendicular in relation to each other in a checker plane. This applies correspondingly in relation to the arrangement in a vertical adjacent checker plane, so that overall again a three-dimensional checker design can be constructed which is similar to a design made of conventional checker blocks.
  • the invention comprises a refractory checker block with the following characteristics:
  • the wall sections delimit a space which is open at opposite ends;
  • the wall sections provide an upper and lower mutual placement area
  • the length of the checker block corresponds to an even multiple of its width, minus one wall thickness
  • the checker block is designed so as to be symmetrical in relation to a mirror plane which divides the checker block in longitudinal direction.
  • the checker block is ring shaped, wherein the cross-sectional area of the space enclosed by the wall sections now however is essentially rectangular (including the inclined corner areas, it is octagonal in shape).
  • the waste gas (when heating an associated regenerator) or the air (for subsequent thermal absorption) flows through the corresponding hollow spaces in vertical direction, but it also flows (in horizontal direction) through the openings formed in the individual wall sections.
  • recesses comprising a large cross-sectional area, if need be several recesses side-by-side, can be formed in the large (opposite) side areas of the checker block.
  • the cross-sectional area of the recess(es) is at least 15% of the entire cross-sectional area of the associated wall section. It can easily also be >30, >35, >40, >45, >50, or even >60 or >70% of the entire cross-sectional area of the associated wall section.
  • the recess can be designed in the shape of a borehole. But it can also be open to a placement area of the checker block, i.e. gate-shaped.
  • the large cross-sectional area of the recess in a checker block according to the invention provides the following advantages when compared to the state of the art as mentioned in the introduction:
  • the checker block has a lower weight of unit volume (kg/m 3 ).
  • the block can also be combined with “partial-size blocks”, such as “half-size blocks” or “two-cut blocks”, as is shown in the figures below.
  • At least one recess in longitudinal direction of the checker block is of a size which corresponds to at least 50, 60 or 70% of the length of the associated wall area.
  • the wall sections which extend perpendicular to the wall sections which extend in longitudinal direction may comprise recesses as well.
  • the described geometrical design of the block makes it possible to take over the inventive idea formulated in AT 406 197 B, namely to provide those wall sections, which extend between the wall sections running in a longitudinal direction of the checker block, i.e. perpendicular to those with a thinner wall thickness.
  • This makes it possible, in the combined arrangement, to create “columns” (hollow spaces) also between adjacent checker blocks of a checker plane, which columns can be used for the purpose of thermal efficiency in that waste gas/air can also be fed therethrough.
  • the respective wall sections may, for example, have a wall thickness which is reduced by 15 to 35% when compared to the thickness of other wall sections.
  • the new checker blocks can easily be combined with known checker blocks.
  • at least one checker plane can be designed using the described large checker blocks. If a checker plane above it made from conventional (smaller) checker blocks is built, this can lead to a lumped load (in the corner regions) acting on the wall sections of the (larger) checker blocks below.
  • FIG. 1 a a top view of a checker block
  • FIG. 1 b a lateral view of the checker block according to FIG. 1 a;
  • FIG. 1 c a further lateral view of the checker block according to FIG. 1 a;
  • FIG. 1 d a perspective view of the checker block according to FIG. 1 a;
  • FIG. 2 a perspective partial view of a checker arrangement with checker blocks according to FIGS. 1 a - d;
  • FIG. 3 a top view of a checker plane made of checker blocks according to FIGS. 1 a - d;
  • FIG. 4 a top view of a multi-storey design of a checker arrangement made of different hollow blocks.
  • FIG. 5 a perspective partial view of an alternative design of a checker arrangement.
  • the checker block according to FIGS. 1 a, b is designed as follows:
  • the wall sections are parallel in pairs on opposite sides.
  • the wall sections 10 . 1 , 10 . 5 extend in longitudinal direction L.
  • the wall sections 10 . 3 , 10 . 7 extend perpendicular to the longitudinal direction L, and thus in “transverse direction” Q.
  • the further wall sections 10 . 2 , 10 . 4 , 10 . 6 and 10 . 8 connect the previously described wall regions 10 . 1 , 10 . 3 , 10 . 5 and 10 . 7 in the embodiment shown in such a way that adjacent wall sections such as 10 . 1 , 10 . 2 or 10 . 5 , 10 . 6 extend at an angle of 45° in relation to each other.
  • the length l of the block corresponds to twice the width b (in this embodiment 2 ⁇ 218 mm) minus one wall thickness (in this embodiment 38 mm) of one of the walls 10 . 1 , 10 . 5 which extend in longitudinal direction L.
  • the distance between the central longitudinal axes MLA of two blocks adjacent in longitudinal direction corresponds to twice the distance between the central longitudinal axes MLAs of two blocks adjoining in transverse direction.
  • corresponding recesses 14 are provided which are open to the lower placement area 16 and are gate-shaped in lateral view (FIG. 1 b ).
  • the cross-sectional area of the recess 14 is only slightly smaller than the cross-sectional area of the remaining wall section 10 . 5 . In other words, the cross-sectional area of the recess 14 is approximately 40% of the theoretical total area of the wall section 10 . 5 .
  • the narrow wall sections 10 . 3 , 10 . 7 also comprise recesses 18 , however, their cross-sectional areas are smaller when compared to those of the recesses 14 (in this embodiment approx. 25% smaller).
  • indentations While on the placement areas 16 of the wall parts 10 . 1 , 10 . 5 , indentations are arranged at a distance from each other, extending perpendicular to the longitudinal direction L, on the lower placement area 16 of the wall sections 10 . 3 , 10 . 7 , indentations in longitudinal direction L are provided.
  • corresponding elevations 22 are arranged, with the indentations and elevations 22 matching so that a positive fit results when the checker blocks are stacked.
  • the block In relation to the plane indicated by the line Q-Q, the block is designed so as to be a mirror inversion, parallel to the central longitudinal axis MLA.
  • Checker blocks of the type shown can be made from any desired refractory materials, depending on the application area. To this extent there are no differences compared with conventional checker blocks. This is also true in relation to the method for producing the checker blocks.
  • FIG. 2 shows an exemplary checker arrangement made of blocks T according to the invention, in combination with conventional hollow blocks K.
  • FIG. 3 shows the basic design of a checker plane made of blocks T according to the invention, with said blocks T being arranged offset in relation to each other “in lines and columns” so as to achieve an even checker density.
  • Adjacent blocks T within one plane abut along the angled-off corner regions 10 . 2 , 10 . 4 , 10 . 6 or 10 . 8 .
  • Four adjoining blocks (in FIG. 3 these are T 1 , T 2 , T 3 , T 4 ) enclose a space R, whose cross-sectional area corresponds approximately to the cross-sectional area of the space 12 of each block T.
  • FIG. 4 shows a design which is analogous to that according to FIG. 3, except that there are blocks in different checker planes, wherein in each case two adjacent blocks cover each other in a wall section, as is also shown in FIG. 2.
  • FIGS. 1 b, d and 2 show that the described geometrical shape of the blocks provides a horizontal cleaning option along the channels formed by the openings 14 , even in a closed way of placing the blocks.
  • FIG. 5 diagrammatically shows the following checker arrangement:
  • checker blocks similar to those in FIGS. 1 a - d are arranged, except that their wall sections 10 . 1 , 10 . 3 , 10 . 5 and 10 . 7 are closed so as to increase the geometrical moment of inertia of the wall sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Finishing Walls (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Revetment (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Building Environments (AREA)
  • Surface Treatment Of Glass (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Furnace Charging Or Discharging (AREA)
US10/489,848 2001-11-28 2002-11-23 Refractory ceramic checker brick Abandoned US20040244944A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE101-58-193.9 2001-11-28
DE10158193A DE10158193C2 (de) 2001-11-28 2001-11-28 Feuerfester keramischer Gitterstein
PCT/EP2002/013189 WO2003046455A1 (de) 2001-11-28 2002-11-23 Feuerfester keramischer gitterstein

Publications (1)

Publication Number Publication Date
US20040244944A1 true US20040244944A1 (en) 2004-12-09

Family

ID=7707154

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/489,848 Abandoned US20040244944A1 (en) 2001-11-28 2002-11-23 Refractory ceramic checker brick

Country Status (18)

Country Link
US (1) US20040244944A1 (de)
EP (1) EP1448944B9 (de)
JP (1) JP2005510687A (de)
KR (1) KR100778375B1 (de)
CN (1) CN100363701C (de)
AT (1) ATE293236T1 (de)
AU (1) AU2002365462A1 (de)
BR (1) BR0206744A (de)
CA (1) CA2467098C (de)
CZ (1) CZ296797B6 (de)
DE (2) DE10158193C2 (de)
ES (1) ES2242085T3 (de)
MX (1) MXPA04005087A (de)
PL (1) PL196497B1 (de)
RU (1) RU2289549C2 (de)
TR (1) TR200400399T1 (de)
WO (1) WO2003046455A1 (de)
ZA (1) ZA200405054B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419111A (zh) * 2011-12-13 2012-04-18 辽宁天和科技股份有限公司 窑炉的蓄热室结构
US20160231058A1 (en) * 2015-02-03 2016-08-11 Fosbel, Inc. Integral self-supporting refractory checker brick modules for glass furnace regenerator structures, and methods of forming same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004045982A1 (de) * 2004-09-22 2006-03-30 Refractory Intellectual Property Gmbh & Co. Kg Monolithischer, zylindrischer feuerfester Hohlstein
DE102009020531B3 (de) * 2009-05-08 2011-04-21 Kba-Metalprint Gmbh Wärmespeicher mit mindestens einem Speicherelement
FR2948656B1 (fr) 2009-07-28 2013-02-08 Saint Gobain Ct Recherches Regenerateur de four verrier.
CN102494533B (zh) * 2011-12-13 2013-11-06 辽宁天和科技股份有限公司 一种采用蓄热燃烧技术的横火焰单元窑结构
AT519365B1 (de) * 2017-06-21 2018-06-15 Saaeed A Neama Aljazaari Energiespeicher

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1487526A (en) * 1922-01-13 1924-03-18 William M Bashlin Concrete building block
US1651893A (en) * 1925-03-12 1927-12-06 Aage K Jorgensen Block for wall construction
US1771286A (en) * 1928-01-18 1930-07-22 Brassert & Co Checkerwork
US2221416A (en) * 1939-04-03 1940-11-12 Freyn Engineering Co Checker construction
US2577170A (en) * 1949-11-14 1951-12-04 Green Annan R Checker-brick
US2853872A (en) * 1955-03-14 1958-09-30 E J Lavino & Co Refractory brick
US4436144A (en) * 1979-02-20 1984-03-13 Veitscher Magnesitwerke-Actien-Gesellschaft Prismatic brick of refractory material
US4540039A (en) * 1982-05-03 1985-09-10 Veitscher Magnesitwerke-Actien-Gesellschaft Prismatic refractory brick for glass melting furnace chambers
US4768578A (en) * 1987-04-06 1988-09-06 Sulit Rodialo D Regenerative heat exchange systems and refractory bricks therefore
US4974666A (en) * 1988-05-31 1990-12-04 Toshiba Monofrax Co., Ltd. Refractory brick assembly for a heat regenerator
US5299629A (en) * 1992-06-12 1994-04-05 North American Refractories Company Interlocking checker bricks
US5400561A (en) * 1992-12-09 1995-03-28 Metten Produktions-Und-Handel Gmbh Concrete blocks having through holes for water drainage
US5634313A (en) * 1994-05-19 1997-06-03 Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse Cylindrical, refractory, hollow brick
US5687531A (en) * 1995-02-14 1997-11-18 North American Refractories Company Horizontal flue technology for carbon baking furnace
US5771654A (en) * 1994-11-14 1998-06-30 Modern Technologies Corp. Method of construction using molded polymer blocks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US443614A (en) * 1890-12-30 William friend
GB371724A (en) * 1931-03-28 1932-04-28 Paul Giese Improvements in or relating to refractory brick work
GB377342A (en) * 1931-05-14 1932-07-28 United Steel Companies Ltd Improvements in or relating to the regenerative chambers of open-hearth or reheatingfurnaces
GB2122328B (en) * 1982-06-22 1985-07-31 Steetley Refractories Ltd Refractory brick
CN2040625U (zh) * 1988-02-22 1989-07-05 谢振远 热风炉高效格子砖
CN2089603U (zh) * 1990-12-24 1991-11-27 湖州耐火材料厂 锆铝方筒砖
DE19808810C1 (de) * 1998-03-03 1999-06-24 Didier Werke Ag Hohlstein für den Gitterbesatz vom Kammern eines Glasschmelzofens und dessen Verwendung

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1487526A (en) * 1922-01-13 1924-03-18 William M Bashlin Concrete building block
US1651893A (en) * 1925-03-12 1927-12-06 Aage K Jorgensen Block for wall construction
US1771286A (en) * 1928-01-18 1930-07-22 Brassert & Co Checkerwork
US2221416A (en) * 1939-04-03 1940-11-12 Freyn Engineering Co Checker construction
US2577170A (en) * 1949-11-14 1951-12-04 Green Annan R Checker-brick
US2853872A (en) * 1955-03-14 1958-09-30 E J Lavino & Co Refractory brick
US4436144A (en) * 1979-02-20 1984-03-13 Veitscher Magnesitwerke-Actien-Gesellschaft Prismatic brick of refractory material
US4540039A (en) * 1982-05-03 1985-09-10 Veitscher Magnesitwerke-Actien-Gesellschaft Prismatic refractory brick for glass melting furnace chambers
US4768578A (en) * 1987-04-06 1988-09-06 Sulit Rodialo D Regenerative heat exchange systems and refractory bricks therefore
US4974666A (en) * 1988-05-31 1990-12-04 Toshiba Monofrax Co., Ltd. Refractory brick assembly for a heat regenerator
US5299629A (en) * 1992-06-12 1994-04-05 North American Refractories Company Interlocking checker bricks
US5400561A (en) * 1992-12-09 1995-03-28 Metten Produktions-Und-Handel Gmbh Concrete blocks having through holes for water drainage
US5634313A (en) * 1994-05-19 1997-06-03 Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse Cylindrical, refractory, hollow brick
US5771654A (en) * 1994-11-14 1998-06-30 Modern Technologies Corp. Method of construction using molded polymer blocks
US5687531A (en) * 1995-02-14 1997-11-18 North American Refractories Company Horizontal flue technology for carbon baking furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419111A (zh) * 2011-12-13 2012-04-18 辽宁天和科技股份有限公司 窑炉的蓄热室结构
US20160231058A1 (en) * 2015-02-03 2016-08-11 Fosbel, Inc. Integral self-supporting refractory checker brick modules for glass furnace regenerator structures, and methods of forming same
US10260813B2 (en) * 2015-02-03 2019-04-16 Fosbel, Inc. Integral self-supporting refractory checker brick modules for glass furnace regenerator structures, and methods of forming same

Also Published As

Publication number Publication date
DE10158193C2 (de) 2003-10-02
BR0206744A (pt) 2004-06-29
MXPA04005087A (es) 2004-09-10
JP2005510687A (ja) 2005-04-21
EP1448944A2 (de) 2004-08-25
CN100363701C (zh) 2008-01-23
KR100778375B1 (ko) 2007-12-10
CA2467098A1 (en) 2003-06-05
DE10158193A1 (de) 2003-06-18
KR20040063904A (ko) 2004-07-14
CA2467098C (en) 2008-08-19
DE50202810D1 (de) 2005-05-19
CZ2004458A3 (cs) 2004-06-16
ATE293236T1 (de) 2005-04-15
TR200400399T1 (tr) 2004-09-21
AU2002365462A1 (en) 2003-06-10
ZA200405054B (en) 2005-09-21
EP1448944B1 (de) 2005-04-13
PL368711A1 (en) 2005-04-04
RU2004119819A (ru) 2005-07-10
RU2289549C2 (ru) 2006-12-20
EP1448944B9 (de) 2005-08-31
PL196497B1 (pl) 2008-01-31
CN1596359A (zh) 2005-03-16
ES2242085T3 (es) 2005-11-01
CZ296797B6 (cs) 2006-06-14
WO2003046455A1 (de) 2003-06-05
WO2003046455A8 (de) 2003-07-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG, AU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BALD, STEFAN;REEL/FRAME:015673/0392

Effective date: 20031219

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION