WO2014063217A1 - Sistema de combustão para fabrição de revestimentos cerâmicos - Google Patents
Sistema de combustão para fabrição de revestimentos cerâmicos Download PDFInfo
- Publication number
- WO2014063217A1 WO2014063217A1 PCT/BR2013/000438 BR2013000438W WO2014063217A1 WO 2014063217 A1 WO2014063217 A1 WO 2014063217A1 BR 2013000438 W BR2013000438 W BR 2013000438W WO 2014063217 A1 WO2014063217 A1 WO 2014063217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- burners
- combustion system
- furnace
- ceiling
- burner
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/32—Casings
- F27B9/34—Arrangements of linings
-
- 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
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
- F27B2009/3607—Heaters located above the track of the charge
- F27B2009/3615—Burner in the ceiling directed vertically downwards
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
- F27B2009/3638—Heaters located above and under the track
Definitions
- the present invention relates to an improved burner combustion system for industrial surfaces, more specifically for roller kilns for the manufacture of coatings (floor and wall).
- Roller tunnel kilns are widely known in the art and have been used for decades for the burning of ceramic tiles, floors, etc.
- furnaces operate basically as follows: ceramic, refractory, etc., sometimes called “fillers”, enter the "raw” form on one side of the furnace and advance to the opposite side, where they are “burned”.
- temperatures are around 1000 ° C.
- the temperatures are in the range of 1200 ° C.
- Other temperatures such as 1450 ° C for hard table porcelain, 1600 ° C for high alumina materials, and up to 1850 ° C for burning basic bricks (used in blast furnaces) can also be verified.
- These tunnel furnaces have a very good thermal efficiency compared to intermittent furnaces. Among several factors, it is noteworthy the need to heat the insulation of the ovens, as it should be done in intermittent ovens.
- the load of material on top of rollers moves continuously from side to side of the furnace, where it passes through various regions with different temperatures until the product is completely burned and cured.
- the raw load still crosses the preheat zone, where the furnace normally has burners working only at the bottom of the load below the roller level.
- the cargo enters the main burn zone, which It usually has burners on two levels, above and below the load.
- the cargo goes through a transition stage and then immediately enters the rapid cooling region.
- the fourth region through which the cargo passes is a transition zone called slow cooling, which precedes the fifth and final region, where final cooling occurs, where again much air is injected to cool the burnt cargo to at room temperature.
- British document GB 2,224,105 filed October 11, 1989, also refers to an industrial oven.
- This furnace has a plurality of burners in which secondary air may be used to feed the burner flame region in controlled amounts according to the content of the furnace gas component.
- This document refers to secondary air injection in conventional burners. It is still widely used today, but in intermittent furnaces and sensitive products. Secondary air reduces the temperature of the flame and increases the volume of gases inside the oven, making it homogeneous. Unlike the purpose of the present invention, consumption is greatly increased.
- the ceramic material combustion system comprises an oven having insulated walls, and being divided into different regions at different temperatures, the system firing zone further comprises a plurality of grouped burners, each burner comprising a control device, in that the burner groups are arranged in a lateral rotation arrangement and are activated independently and alternatively at present time intervals and in a loop condition to prevent localized overheating.
- the combustion system does not include burners located on the ceiling and threshold.
- red ceramic kilns (bricks and tiles) comprise ceiling burners. These burners have flame in the vertical direction. In fact, ceiling burners direct their flames to a region between two charges, the charge being stationary at the time of burning. In this sense, it is noted that the load does not move continuously inside the oven.
- the charge does not go through a homogeneous burning process, that is, a larger burning may occur in the regions near the burners.
- the combustion air comes from the bottom of the furnace.
- the first major difference lies in the fact that the present invention has burners arranged in the ceiling and threshold, burning preferably, but not limited, in the opposite direction of the load advance, where the flame is in the horizontal position. Ceiling and sill burners prevent a large temperature difference between the center and sides of the oven, which impairs the burning process provided by the oven.
- the second major difference is that much of the combustion air comes from the interior of the furnace, and its use is possible thanks to the Venturi effect generated by the burners.
- the present invention provides greater temperature homogeneity by attenuating the thermal gradient between the sides and center of the oven.
- the present invention provides a significant increase in thermal efficiency as it utilizes hot air from within the furnace, resulting in a significant reduction in gas consumption.
- Figure 1 shows a cross-sectional view of the burn zone of a conventional oven using conventional burners
- Figure 2 shows a cross-sectional view of the firing zone of an improved combustion furnace using only Venturi type burners
- Figure 3 illustrates a side sectional view of the firing zone of an improved combustion furnace using only Venturi type burners
- Figure 4 illustrates a cross-sectional view of the firing zone of an improved combustion furnace utilizing Venturi type burners and conventional burners;
- Figure 5 illustrates a side cross-sectional view of the firing zone of an improved combustion furnace utilizing Venturi type burners and conventional burners;
- Figure 6 illustrates a cross-sectional view of the firing zone of an improved combustion furnace using only conventional burners
- Figure 7 illustrates a side sectional view of the firing zone of an improved combustion furnace using only conventional burners.
- Figure 1 illustrates a schematic drawing of a burn zone 1 of a conventional roller oven with conventional burners 2 positioned on the sides of the oven.
- a typical tunnel oven can have from 3 to 40 groups. Burning Each oven module is about 2 to 3 m long and has a 0.75 to 1.5 m separation between burners on the same side of the oven. The burners on the opposite side are out of alignment and not aligned.
- the firing zone comprises a plurality of grouped burners, each burner comprising a control device such as a solenoid valve, wherein the burner groups are arranged in a rotating arrangement. and are activated independently and alternatively at present time intervals and in a loop condition to prevent localized overheating.
- a control device such as a solenoid valve
- Figure 2 shows the firing zone 3 of a roller furnace with the improved combustion system using only Venturi type burners 4 arranged on the roof and / or the hearth threshold.
- the arrangement of at least one, but preferably a plurality of burners 4, in the ceiling and / or sill, aims to avoid a large temperature difference between the center and the sides of the oven.
- a side section of the furnace firing zone 3 of FIG. 2 is shown in FIG. 3, in which it is observed that the ceiling and threshold burners 4 burn horizontally, preferably in the opposite direction of the load advance.
- Ceiling and / or threshold burners 2, 4 and side burners 2 provide homogeneous to the load, preventing the load from getting burnt more in the regions near the burners. In addition, the load moves continuously inside the oven.
- the minimum number of burners 2, 4 disposed on the ceiling and / or hearth threshold is one, but preferably a plurality of such burners 2, 4 are used.
- the oven burners 2, 4 alternatively burn in the form of a caster.
- groups of burners are arranged in a lateral, ceiling and threshold rotation arrangement and are activated independently and alternatively at present time intervals and in a loop condition to prevent localized overheating.
- FIG. 5 shows a side cross-sectional view of the firing zone 3 of an improved combustion furnace as shown in Figure 4.
- the ceiling and threshold burners 2,4 burn horizontally, preferably against the load advance.
- the flame direction of both conventional burners 2 and Venturi type burners 4 can be rotated 360 degrees.
- such burners 2, 4 can burn not only in the opposite direction of the load, but in any direction horizontally. This further improves temperature homogeneity across the oven section.
- the furnace burners 2,4 may alternatively burn in the form of a caster, the burn time being controlled by a programmable logic controller (PLC) with dedicated software.
- PLC programmable logic controller
- Figures 6 and 7 show, respectively, a cross-sectional view and a side cross-sectional view of the firing zone 3 of an oven with the improved combustion system, using only conventional burners 2 disposed on the sides and / or ceiling and / or hearth threshold .
- conventional burners 2 above and below the load can also serve as fresh air injectors if the temperature curve is required.
- the conventional burners 2 have a ceramic baffle or a pipe with a proper hole to divert the gases horizontally.
- the burner tip it is possible to cool the burner tip through a cooling medium, preferably with a small amount of air circulating through it.
- the cooling medium may further be a water coating.
- Another possibility of increasing the amount of hot air to be used as combustion air is to use preheated air in the rapid-cooling fan instead of ambient air. Note that this air can be taken from the hot air at the oven outlet.
- the Venturi type burner can be used as a radiant type burner.
- the gases at the burner outlet have a high tangential velocity, which causes hot combustion gases to "stick" to the furnace walls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157013529A KR20150089011A (ko) | 2012-10-26 | 2013-10-25 | 타일의 열 처리 |
MX2015005173A MX2015005173A (es) | 2012-10-26 | 2013-10-25 | Sistema de combustion para produccion de revestimiento ceramicos. |
US14/437,154 US20150276316A1 (en) | 2012-10-26 | 2013-10-25 | Thermal treatment of tiles |
CN201380055788.XA CN104854417A (zh) | 2012-10-26 | 2013-10-25 | 用于生产瓷砖的燃烧系统 |
EP13848188.2A EP2913612A4 (en) | 2012-10-26 | 2013-10-25 | COMBUSTION SYSTEM FOR THE MANUFACTURE OF CERAMIC COATINGS |
HK16102029.3A HK1214341A1 (zh) | 2012-10-26 | 2016-02-23 | 用於生產瓷磚的燃燒系統 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRBR102012027523-6A BR102012027523A2 (pt) | 2012-10-26 | 2012-10-26 | Sistema de combustão para fabricação de revestimentos |
BRBR102012027523-6 | 2012-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014063217A1 true WO2014063217A1 (pt) | 2014-05-01 |
Family
ID=50543796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2013/000438 WO2014063217A1 (pt) | 2012-10-26 | 2013-10-25 | Sistema de combustão para fabrição de revestimentos cerâmicos |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150276316A1 (pt) |
EP (1) | EP2913612A4 (pt) |
CN (1) | CN104854417A (pt) |
BR (1) | BR102012027523A2 (pt) |
HK (1) | HK1214341A1 (pt) |
MX (1) | MX2015005173A (pt) |
WO (1) | WO2014063217A1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116294575A (zh) * | 2023-05-16 | 2023-06-23 | 四川领先微晶玻璃有限公司 | 一种加热烧结辊道窑 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107084619A (zh) * | 2017-06-09 | 2017-08-22 | 佛山亿达盈机电有限公司 | 辊道窑 |
CN110806101A (zh) * | 2019-10-22 | 2020-02-18 | 佛山市瑞陶窑炉有限公司 | 一种节能发泡陶瓷辊道窑炉 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1559652A (en) | 1976-10-05 | 1980-01-23 | Siti | Oven |
US4884969A (en) | 1985-11-16 | 1989-12-05 | Ludwig Riedhammer Gmbh | Tunnel kiln |
GB2224105A (en) | 1988-10-12 | 1990-04-25 | Riedhammer Gmbh Co Kg | Industrial furnace |
GB2245693A (en) | 1990-06-27 | 1992-01-08 | Riedhammer Gmbh Co Kg | Roller kiln for ceramics |
EP1209432A2 (en) * | 2000-11-23 | 2002-05-29 | IFT S.r.l. | Continuous kiln particularly for ceramic articles |
WO2009089599A1 (en) * | 2008-01-18 | 2009-07-23 | Hartschuh Schaub Ernesto Adolf | Improved burning system |
WO2009118633A1 (en) * | 2008-03-28 | 2009-10-01 | Sacmi - Cooperativa Meccanici Imola - Societa' Cooperativa | A method for firing ceramic products and a kiln therefor |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3841274A (en) * | 1973-11-29 | 1974-10-15 | Universal Oil Prod Co | High temperature heater for fluids |
SU513228A1 (ru) * | 1974-05-12 | 1976-05-05 | Институт Газа Ан Украинской Сср | Туннельна печь |
HU176252B (en) * | 1977-02-11 | 1981-01-28 | Andreas Haessler | Continuous furnace for burning particularly ceramic articles |
US4229163A (en) * | 1977-07-25 | 1980-10-21 | Kawasaki Steel Corporation | Heating furnace |
JPS57192215A (en) * | 1981-05-21 | 1982-11-26 | Ishikawajima Harima Heavy Ind Co Ltd | Metal-heating oven |
US4453915A (en) * | 1982-08-25 | 1984-06-12 | Bloom Engineering Company, Inc. | Method and apparatus for underfiring oil country tube reheat furnaces |
DE3807495A1 (de) * | 1988-03-08 | 1989-09-21 | Haessler Andreas | Verfahren zum schnellerwaermen und kuehlen von brenngut in periodischen und kontinuierlich betriebenen keramischen oefen |
IT1290102B1 (it) * | 1997-03-17 | 1998-10-19 | Siti | Forno per la cottura di materiali ceramici |
AT410843B (de) * | 2000-03-22 | 2003-08-25 | Wienerberger Ziegelind | Tunnelbrennofen |
DE10058186A1 (de) * | 2000-11-23 | 2001-06-13 | Sacmi Forni Spa | Einschichtofen für Keramikprodukte |
EP2468688A4 (en) * | 2009-08-17 | 2014-03-26 | Asahi Glass Co Ltd | METHOD FOR THE PRODUCTION OF MELTED GLASS, GLASS MELTING OVEN, METHOD FOR PRODUCING A GLASS PRODUCT AND DEVICE FOR PRODUCING A GLASS PRODUCT |
CN101949642A (zh) * | 2010-08-17 | 2011-01-19 | 柳丹 | 一种用于焙烧渗花砖的宽体辊道窑 |
CN102435069A (zh) * | 2011-12-22 | 2012-05-02 | 郑州祥通耐火陶瓷有限公司 | 炭素制品焙烧装置 |
CN203518574U (zh) * | 2013-10-12 | 2014-04-02 | 祥云县黄金工业有限责任公司 | 一种焙烧金精矿用多段热能持续使用焙烧炉 |
-
2012
- 2012-10-26 BR BRBR102012027523-6A patent/BR102012027523A2/pt not_active IP Right Cessation
-
2013
- 2013-10-25 MX MX2015005173A patent/MX2015005173A/es unknown
- 2013-10-25 CN CN201380055788.XA patent/CN104854417A/zh active Pending
- 2013-10-25 US US14/437,154 patent/US20150276316A1/en not_active Abandoned
- 2013-10-25 EP EP13848188.2A patent/EP2913612A4/en not_active Withdrawn
- 2013-10-25 WO PCT/BR2013/000438 patent/WO2014063217A1/pt active Application Filing
-
2016
- 2016-02-23 HK HK16102029.3A patent/HK1214341A1/zh unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1559652A (en) | 1976-10-05 | 1980-01-23 | Siti | Oven |
US4884969A (en) | 1985-11-16 | 1989-12-05 | Ludwig Riedhammer Gmbh | Tunnel kiln |
GB2224105A (en) | 1988-10-12 | 1990-04-25 | Riedhammer Gmbh Co Kg | Industrial furnace |
GB2245693A (en) | 1990-06-27 | 1992-01-08 | Riedhammer Gmbh Co Kg | Roller kiln for ceramics |
EP1209432A2 (en) * | 2000-11-23 | 2002-05-29 | IFT S.r.l. | Continuous kiln particularly for ceramic articles |
WO2009089599A1 (en) * | 2008-01-18 | 2009-07-23 | Hartschuh Schaub Ernesto Adolf | Improved burning system |
WO2009118633A1 (en) * | 2008-03-28 | 2009-10-01 | Sacmi - Cooperativa Meccanici Imola - Societa' Cooperativa | A method for firing ceramic products and a kiln therefor |
Non-Patent Citations (1)
Title |
---|
See also references of EP2913612A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116294575A (zh) * | 2023-05-16 | 2023-06-23 | 四川领先微晶玻璃有限公司 | 一种加热烧结辊道窑 |
CN116294575B (zh) * | 2023-05-16 | 2023-08-15 | 四川领先微晶玻璃有限公司 | 一种加热烧结辊道窑 |
Also Published As
Publication number | Publication date |
---|---|
CN104854417A (zh) | 2015-08-19 |
MX2015005173A (es) | 2016-01-20 |
US20150276316A1 (en) | 2015-10-01 |
HK1214341A1 (zh) | 2016-07-22 |
EP2913612A4 (en) | 2016-06-22 |
EP2913612A1 (en) | 2015-09-02 |
BR102012027523A2 (pt) | 2014-10-21 |
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