EP0184749A2 - Burning process for materials comprising oxidizable parts - Google Patents
Burning process for materials comprising oxidizable parts Download PDFInfo
- Publication number
- EP0184749A2 EP0184749A2 EP85115265A EP85115265A EP0184749A2 EP 0184749 A2 EP0184749 A2 EP 0184749A2 EP 85115265 A EP85115265 A EP 85115265A EP 85115265 A EP85115265 A EP 85115265A EP 0184749 A2 EP0184749 A2 EP 0184749A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- furnace
- oxygen
- materials
- burned
- unburned
- 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
- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000004449 solid propellant Substances 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 12
- 238000010304 firing Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052572 stoneware Inorganic materials 0.000 description 1
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
- 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
- F27B13/06—Details, accessories, or equipment peculiar to furnaces of this type
- F27B13/12—Arrangements of heating devices
Definitions
- the invention relates to a method for burning materials containing oxidizable constituents in a furnace, a solid fuel being burned in the furnace.
- Solid fuels of this type are, for example, sawdust, coke breeze or coal dust.
- To fire a furnace with coal dust coal is ground and the coal dust obtained is blown into the combustion chamber and burned.
- An important property of coal dust, which affects the economy of a dust burner system, is the fineness of grinding of the coal dust.
- a high grinding fineness requires high energy costs and leads to high mill wear.
- a coarse grinding leads to the fact that not all of the coal dust is burned, but a portion remains unburned, even if the combustion takes place not with air but with oxygen-enriched air.
- the invention is therefore based on the object of specifying a method of the type described at the outset which enables the production of high quality products when firing materials containing oxidizable constituents.
- This object is achieved in that the unburned fuel occurring in the furnace interior is swirled with an oxygen-containing gas and afterburned.
- this unburned residual material is whirled up and afterburned with the help of an oxygen-containing gas. Since the unburned material usually glows, the afterburning takes place automatically. According to the invention, the oxygen-containing gas can only be directed specifically to the unburned material. Afterburning takes place particularly quickly and completely if the unburned mate rial is whirled up.
- the method according to the invention has decisive advantages over the conventional method.
- the previously occurring temperature difference between the area of the furnace ceiling and the region of the furnace sole is eliminated by the method according to the invention, so that heat is supplied to all fuel at the same temperature level.
- this effect advantageously leads to a temperature increase in the pre-fire zone.
- materials to be burned can be heated up more quickly to the desired temperature level. Since the pre-firing zone is shorter than with conventional methods, the workpieces reach the firing zone more quickly. This advantage can either increase the furnace throughput or improve the quality.
- the process according to the invention results in a uniform temperature distribution over the height of the furnace and an increase in temperature can be achieved in the pre-fire zone, which increases the quality of the fired goods.
- a particularly rapid and effective post-combustion is achieved in a preferred embodiment of the invention when oxygen is used as the oxygen-containing gas.
- the oxygen-containing gas in the form of jets onto the areas on which unburned fuel collects. In this way it is ensured that all unburned components are whirled up and fed to an afterburning.
- clinker or other coarse and fine ceramic material for example, these materials are often treated in a tunnel furnace into which heat can be introduced by burning solid fuels such as coal dust.
- the pottery and ceramics are grouped into stacks that are built on trolleys. The cars are led in a row through the tunnel kiln. As a rule, the stacks on the trolleys are arranged in such a way that the distances between the successive stacks are always constant.
- the pottery or ceramics first pass through a preheating zone in which their organic substances are oxidized. Subsequently, the goods pass through a firing zone, in which the pottery or ceramics reach the highest temperature, and then through a cooling zone.
- the stacks are now fed through the furnace in cycles.
- the stacks are usually positioned after a feed phase and during a break so that there is just a space between two in the firing zone Stacking is located under the ceiling area in which the dust burners are arranged. If, for example, coal dust is now burned, only a part of the coal dust is burned immediately, while a part (as a rule, preferably the dust fraction with a low fineness) remains unburned. This portion of unburned, smoldering coal dust sinks to the bottom of the car, which is not covered by the stacks, and to the earthenware or ceramics to be burned.
- supply devices for oxygen are now arranged, for example, in the ceiling area of the combustion zone in such a way that oxygen which is supplied to these supply devices under pressure, emerges in the form of jets and unburned coal dust is whirled up and afterburned on the soleplate or the material to be burned.
- the oxygen supply devices are arranged in such a way that escaping oxygen does not take part in the combustion taking place at the solid fuel burner.
- the oxygen supply devices can nevertheless be arranged in the area of the burners, but also in the direction of movement of the carriages after this area.
- the application of the method according to the invention to the firing of pottery and ceramics in a tunnel kiln is particularly advantageous.
- the method according to the invention is not restricted to this case. It is also suitable for the production of e.g. Refractory, stoneware, SiC plates and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Incineration Of Waste (AREA)
- Furnace Details (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Brennen von oxidierbare Bestandteile enthaltenden Materialien in einem Ofen, wobei ein fester Brennstoff im Ofen verbrannt wird..The invention relates to a method for burning materials containing oxidizable constituents in a furnace, a solid fuel being burned in the furnace.
Bei derartigen Verfahren,beispielsweise beim Brennen von Ziegeln, Klinker und sonstigem grob- und feinkeramischen Material, ist es bekannt, anstelle eines gasförmigen oder flüssigen Heizmediums einen festen Brennstoff als Heizmedium zu verwenden. Derartige feste Brennstoffe sind z.B. Sägespäne, Koksgrus oder Kohlenstaub. Zur Feuerung eines Ofens mittels Kohlenstaub wird Kohle gemahlen und der erhaltene Kohlenstaub über einen Brenner in den Brennraum eingeblasen und verbrannt. Eine wesentliche Eigenschaft des Kohlenstaubes, die die Wirtschaftlichkeit einer Staubbrenner-Anlage beeinflußt, ist die Mahlfeinheit des Kohlenstaubes. Eine hohe Mahlfeinheit erfordert hohe Energiekosten und führt zu hohem Mühlenverschleiß. Eine grobe Ausmahlung führt dazu, daß nicht der gesamte Kohlenstaub verbrannt wird, sondern ein Anteil unverbrannt bleibt, selbst wenn die Verbrennung nicht mit Luft, sondern mit sauerstoff-angereicherter Luft erfolgt.In such processes, for example when firing bricks, clinker and other coarse and fine ceramic material, it is known to use a solid fuel as the heating medium instead of a gaseous or liquid heating medium. Solid fuels of this type are, for example, sawdust, coke breeze or coal dust. To fire a furnace with coal dust, coal is ground and the coal dust obtained is blown into the combustion chamber and burned. An important property of coal dust, which affects the economy of a dust burner system, is the fineness of grinding of the coal dust. A high grinding fineness requires high energy costs and leads to high mill wear. A coarse grinding leads to the fact that not all of the coal dust is burned, but a portion remains unburned, even if the combustion takes place not with air but with oxygen-enriched air.
In der Regel fällt daher bei der Verwendung fester Brennstoffe eine gewisse Menge an unverbranntem Brennstoff an. Beim Brennen von Tonware, insbesondere bei der Oxidation von Stoffkomponenten ist es von Nachteil, wenn sich auf der Tonware und/oder auf dem Ofenboden unverbranntes Restmaterial ansammelt. Dabei ist z.B. festzustellen, daß sich zwischen der Ofendecke und der Ofensohle, eine Temperaturdifferenz von bis zu 100 K einstellt. Das Material im Bereich der Ofendecke ist daher einer höheren Temperatur ausgesetzt als die im unteren Bereich des Ofens. Dieser Effekt wirkt sich auf die Qualität des zu brennenden Gutes negativ aus.As a rule, a certain amount of unburned fuel is produced when using solid fuels. When burning crockery, in particular when oxidizing material components, it is disadvantageous if unburned residual material collects on the crockery and / or on the furnace floor. Here is e.g. determine that there is a temperature difference of up to 100 K between the furnace roof and the furnace sole. The material in the area of the furnace roof is therefore exposed to a higher temperature than that in the lower region of the furnace. This effect has a negative effect on the quality of the material to be burned.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der eingangs geschilderten Art anzugeben, das die Herstellung von Produkten hoher Qualität beim Brennen von oxidierbare Bestandteile enthaltendeτMaterialien ermöglicht.The invention is therefore based on the object of specifying a method of the type described at the outset which enables the production of high quality products when firing materials containing oxidizable constituents.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß im Ofeninnenraum anfallender unverbrannter Brennstoff mit einem sauerstoffhaltigen Gas verwirbelt und nachverbrannt wird.This object is achieved in that the unburned fuel occurring in the furnace interior is swirled with an oxygen-containing gas and afterburned.
Wird ein Ofen mit festen Brennstoffen beheizt und verbrennt ein Teil des Brennstoffes nicht unmittelbar hinter dem Brennerkopf, so sinkt dieser Anteil und lagert sich auf der Ofensohle, auf dem zu brennenden Material oder auf der Wagensohle ab. Erfindungsgemäß wird dieses unverbrannte Restmaterial mit Hilfe eines sauerstoffhaltigen Gases aufgewirbelt und nachverbrannt. Da das unverbrannte Material in der Regel glimmt, läuft die Nachverbrennung selbsttätig ab. Erfindungsgemäß ist das sauerstoffhaltige Gas lediglich gezielt auf das unverbrannt gebliebene Material zu leiten. Die Nachverbrennung läuft dabei besonders rasch und vollständig ab, wenn das unverbrannt gebliebene Material aufgewirbelt wird.If a furnace is heated with solid fuels and part of the fuel does not burn directly behind the burner head, this proportion drops and is deposited on the furnace base, on the material to be burned or on the base of the car. According to the invention, this unburned residual material is whirled up and afterburned with the help of an oxygen-containing gas. Since the unburned material usually glows, the afterburning takes place automatically. According to the invention, the oxygen-containing gas can only be directed specifically to the unburned material. Afterburning takes place particularly quickly and completely if the unburned mate rial is whirled up.
Gegenüber dem herkömmlichen Verfahren besitzt das erfindungsgemäße Verfahren entscheidende Vorteile. So wird durch das erfindungsgemäße Verfahren die bisher sich einstellende Temperaturdifferenz zwischen dem Bereich der Ofendecke und dem Bereich der Ofensohle aufgehoben, so daß allem Brenngut Wärme auf demselben Temperaturniveau zugeführt wird. In einem Tunnelofen, in dem Werkstücke zunächst eine Vorfeuerzone, dann die eigentliche Brennzone und nachfolgend eine Kühlzone durchlaufen, führt dieser Effekt vorteilhafterweise zu einer Temperaturerhöhung in der Vorfeuerzone. Auf diese Weise können zu brennende Materialien schneller auf das gewünschte Temperaturniveau aufgeheizt werden. Da die Vorfeuerzone somit kürzer als bei herkömmlichen Verfahren ist, gelangen die Werkstücke rascher in die Brennzone. Durch diesen Vorteil kann entweder der Ofendurchsatz erhöht oder die Qualität verbessert werden. Ein weiterer Nachteil, der sich bisher bei der Oxidation von organischen Komponenten enthaltender Materialien einstellte, wird durch das erfindungsgemäße Verfahren beseitigt: Setzt sich glimmender, unverbrannter Brennstoff auf der Oberfläche derartiger Werkstücke ab, so liegt an der Werkstückoberfläche ein Reduktionspotential vor. Eine Oxidation der organischen Komponenten wird daher solange verhindert, bis eine vollständige Verbrennung erfolgt ist. Mit dem erfindungsgemäßen Verfahren wird nun ein derartiges Reduktionspotential aufgehoben. Zudem entsteht im Bereich der Werkstücke eine heiße, oxidierend wirkende Atmosphäre, so daß vorteilhafterweise eine Oxidation der organischen Komponenten beschleunigt wird.The method according to the invention has decisive advantages over the conventional method. Thus, the previously occurring temperature difference between the area of the furnace ceiling and the region of the furnace sole is eliminated by the method according to the invention, so that heat is supplied to all fuel at the same temperature level. In a tunnel furnace, in which workpieces first pass through a pre-fire zone, then through the actual firing zone and subsequently through a cooling zone, this effect advantageously leads to a temperature increase in the pre-fire zone. In this way, materials to be burned can be heated up more quickly to the desired temperature level. Since the pre-firing zone is shorter than with conventional methods, the workpieces reach the firing zone more quickly. This advantage can either increase the furnace throughput or improve the quality. Another disadvantage, which has hitherto occurred in the oxidation of materials containing organic components, is eliminated by the method according to the invention: If glowing, unburned fuel settles on the surface of such workpieces, there is a reduction potential on the workpiece surface. Oxidation of the organic components is therefore prevented until complete combustion has taken place. Such a reduction potential is now eliminated with the method according to the invention. In addition, a hot, oxidizing atmosphere is created in the area of the workpieces, so that oxidation of the organic components is advantageously accelerated.
Zusammenfassend ist festzustellen, daß durch das erfindungsgemäße Verfahren eine gleichmäßige Temperaturverteilung über die Höhe des Ofens sowie eine Temperaturerhöhung in der Vorfeuerzone erzielt werden kann, wodurch die Qualität der gebrannten Ware steigt.In summary, it can be stated that the process according to the invention results in a uniform temperature distribution over the height of the furnace and an increase in temperature can be achieved in the pre-fire zone, which increases the quality of the fired goods.
Eine besonders rasche und wirkungsvolle Nachverbrennung wird in einer bevorzugten Ausgestaltung der Erfindung erzielt, wenn Sauerstoff als sauerstoffhaltiges Gas verwendet wird.A particularly rapid and effective post-combustion is achieved in a preferred embodiment of the invention when oxygen is used as the oxygen-containing gas.
Nach einer weiteren Ausgestaltung der Erfindung ist es zweckmäßig, das sauerstoffhaltige Gas in Form von Strahlen auf die Flächen zu richten, auf denen sich unverbrannter Brennstoff ansammelt. Auf diese Weise wird sichergestellt, daß alle unverbrannten Bestandteile aufgewirbelt und einer Nachverbrennung zugeführt werden.According to a further embodiment of the invention, it is expedient to direct the oxygen-containing gas in the form of jets onto the areas on which unburned fuel collects. In this way it is ensured that all unburned components are whirled up and fed to an afterburning.
Zum Brennen von beispielsweise Ziegeln, Klinker oder sonstigem grob- und feinkeramischem Material werden diese Materialien häufig in einem Tunnelofen, in den Wärme durch Verbrennung von festen Brennstoffen wie Kohlenstaub eingebracht werden kann, behandelt. Die Ton- und Keramikwaren werden zu Stapeln zusammengefaßt, die auf Wagen errichtet werden. Die Wagen werden in einer Reihe durch den Tunnelofen geleitet. In der Regel sind die Stapel auf den Wagen so angeordnet, daß die Abstände der aufeinanderfolgenden Stapel stets konstant sind. Im Tunnelofen durchlaufen die Ton- oder Keramikwaren zunächst eine Vorheizzone, in der ihre organischen Substanzen oxidiert werden. Nach-folgend durchlaufen die Waren eine Brennzone, in der die Ton- oder Keramikwaren die höchste Temperatur annehmen, und anschließend eine Kühlzone.For firing bricks, clinker or other coarse and fine ceramic material, for example, these materials are often treated in a tunnel furnace into which heat can be introduced by burning solid fuels such as coal dust. The pottery and ceramics are grouped into stacks that are built on trolleys. The cars are led in a row through the tunnel kiln. As a rule, the stacks on the trolleys are arranged in such a way that the distances between the successive stacks are always constant. In the tunnel kiln, the pottery or ceramics first pass through a preheating zone in which their organic substances are oxidized. Subsequently, the goods pass through a firing zone, in which the pottery or ceramics reach the highest temperature, and then through a cooling zone.
Die Stapel werden nun taktweise durch den Ofen geleitet. Dabei werden die Stapel in der Regel nach einer Vorschubphase und während einer Ruhepause so positioniert, daß sich in der Brennzone gerade ein Zwischenraum zwischen zwei Stapeln unter jenem Deckenbereich befindet, in dem die Staubbrenner angeordnet sind. Wird nun z.B. Kohlenstaub verbrannt, so wird nur ein Teil des Kohlenstaubes sofort verbrannt, wahrend ein Teil (in der Regel bevorzugt der Staubanteil geringer Mahlfeinheit) unverbrannt bleibt. Dieser Teil an unverbranntem, glimmendem Kohlenstaub sinkt auf die Wagensohle, die nicht von den Stapeln abgedeckt wird, sowie auf die zu brennenden Ton- oder Keramikwaren. Erfindungsgemäß sind nun z.B. im Deckenbereich der Brennzone Zufuhrvorrichtungen für Sauerstoff derart angeordnet, daß Sauerstoff der diesen Zufuhrvorrichtungen unter Druck zugeführt wird, in Form von Strahlen austritt und unverbrannten Kohlenstaub auf der Wagensohle oder dem zu brennenden Gut aufgewirbelt und nachverbrannt wird. Die Sauerstoffzufuhrvorrichtungen sind so angeordnet, daß austretender Sauerstoff an der am Feststoffbrenner ablaufenden Verbrennung nicht teilnimmt. Die Sauerstoffzufuhrvorrichtungen können dennoch im Bereich der Brenner, jedoch auch in Bewegungsrichtung der Wagen nach diesem Bereich angeordnet sein.The stacks are now fed through the furnace in cycles. The stacks are usually positioned after a feed phase and during a break so that there is just a space between two in the firing zone Stacking is located under the ceiling area in which the dust burners are arranged. If, for example, coal dust is now burned, only a part of the coal dust is burned immediately, while a part (as a rule, preferably the dust fraction with a low fineness) remains unburned. This portion of unburned, smoldering coal dust sinks to the bottom of the car, which is not covered by the stacks, and to the earthenware or ceramics to be burned. According to the invention, supply devices for oxygen are now arranged, for example, in the ceiling area of the combustion zone in such a way that oxygen which is supplied to these supply devices under pressure, emerges in the form of jets and unburned coal dust is whirled up and afterburned on the soleplate or the material to be burned. The oxygen supply devices are arranged in such a way that escaping oxygen does not take part in the combustion taking place at the solid fuel burner. The oxygen supply devices can nevertheless be arranged in the area of the burners, but also in the direction of movement of the carriages after this area.
Wird in einen derartigen Tunnelofen ein sauerstoffhaltiges Gas zur Nachverbrennung von unverbranntem Kohlenstaub in der erfindungsgemäßen Weise eingeleitet, so bewirkt diese Maßnahme
- - daß das Reduktionspotential an den Ton-/Keramikwaren aufgehoben wird,
- - daß die Brenntemperatur auf der Wagensohle erhöht wird,
- - daß ein heißes, oxidierendes Potential zur Beschleunigung der Oxidation der organischen Substanzen in den Ton- bzw. in den Keramikwaren geschaffen wird und
- - daß die Temperatur in der Vorfeuerzone erhöht wird, wodurch der Prozeß des Ausbrennens der organischen Substanzen ebenfalls begünstigt wird.
- - that the reduction potential on pottery / ceramics is eliminated,
- - that the firing temperature on the sole of the car is increased,
- - That a hot, oxidizing potential for accelerating the oxidation of the organic substances in the clay or in the ceramic goods is created and
- - That the temperature in the pre-fire zone is increased, whereby the process of burning out the organic Substances are also favored.
Aus diesen Gründen ist die Anwendung des erfindungsgemäßen Verfahrens auf das Brennen von Ton- und Keramikwaren in einem Tunnelofen besonders vorteilhaft. Das erfindungsgemäße Verfahren ist jedoch nicht auf diesen Fall eingeschränkt. Es eignet sich auch zur Herstellung von z.B. Feuerfestmaterial, Steinzeug, SiC-Platten und dergleichen.For these reasons, the application of the method according to the invention to the firing of pottery and ceramics in a tunnel kiln is particularly advantageous. However, the method according to the invention is not restricted to this case. It is also suitable for the production of e.g. Refractory, stoneware, SiC plates and the like.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85115265T ATE72894T1 (en) | 1984-12-06 | 1985-12-02 | PROCESSES FOR BURNING MATERIALS CONTAINING OXIDIZABLE COMPONENTS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843444542 DE3444542A1 (en) | 1984-12-06 | 1984-12-06 | METHOD FOR BURNING MATERIALS CONTAINING OXIDIZABLE INGREDIENTS |
| DE3444542 | 1984-12-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0184749A2 true EP0184749A2 (en) | 1986-06-18 |
| EP0184749A3 EP0184749A3 (en) | 1989-04-05 |
| EP0184749B1 EP0184749B1 (en) | 1992-02-26 |
Family
ID=6252081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85115265A Expired - Lifetime EP0184749B1 (en) | 1984-12-06 | 1985-12-02 | Burning process for materials comprising oxidizable parts |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0184749B1 (en) |
| AT (1) | ATE72894T1 (en) |
| DE (2) | DE3444542A1 (en) |
| ZA (1) | ZA859313B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785668A1 (en) * | 1998-11-10 | 2000-05-12 | Air Liquide | METHOD FOR HEATING A CONTINUOUSLY LOADING OVEN IN PARTICULAR FOR STEEL PRODUCTS, AND CONTINUOUSLY LOADING HEATING OVEN |
| EP1083397A1 (en) * | 1999-09-08 | 2001-03-14 | Praxair Technology, Inc. | Method for reducing defects in ceramic tile production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1355797A (en) * | 1963-02-08 | 1964-03-20 | Improvement in the secondary air supply of furnace burners | |
| GB2046415A (en) * | 1979-02-23 | 1980-11-12 | Boc Ltd | Fluidised bed combustion method |
| EP0021768A1 (en) * | 1979-06-18 | 1981-01-07 | BOC Limited | Method for heat treatment of clay and refractory ware |
| GB2056640A (en) * | 1979-07-12 | 1981-03-18 | Boc Ltd | Heat treatment of uncalcined, carbon-containing fireclay |
| EP0050105A2 (en) * | 1980-10-09 | 1982-04-21 | Kurt Sjöstrand | A method and a device for the combustion of solid fuels |
-
1984
- 1984-12-06 DE DE19843444542 patent/DE3444542A1/en not_active Withdrawn
-
1985
- 1985-12-02 DE DE8585115265T patent/DE3585432D1/en not_active Expired - Fee Related
- 1985-12-02 AT AT85115265T patent/ATE72894T1/en not_active IP Right Cessation
- 1985-12-02 EP EP85115265A patent/EP0184749B1/en not_active Expired - Lifetime
- 1985-12-05 ZA ZA859313A patent/ZA859313B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1355797A (en) * | 1963-02-08 | 1964-03-20 | Improvement in the secondary air supply of furnace burners | |
| GB2046415A (en) * | 1979-02-23 | 1980-11-12 | Boc Ltd | Fluidised bed combustion method |
| EP0021768A1 (en) * | 1979-06-18 | 1981-01-07 | BOC Limited | Method for heat treatment of clay and refractory ware |
| GB2056640A (en) * | 1979-07-12 | 1981-03-18 | Boc Ltd | Heat treatment of uncalcined, carbon-containing fireclay |
| EP0050105A2 (en) * | 1980-10-09 | 1982-04-21 | Kurt Sjöstrand | A method and a device for the combustion of solid fuels |
Non-Patent Citations (1)
| Title |
|---|
| Sprechsaal nr.1 (1979),Seiten 26-30 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785668A1 (en) * | 1998-11-10 | 2000-05-12 | Air Liquide | METHOD FOR HEATING A CONTINUOUSLY LOADING OVEN IN PARTICULAR FOR STEEL PRODUCTS, AND CONTINUOUSLY LOADING HEATING OVEN |
| EP1001237A1 (en) * | 1998-11-10 | 2000-05-17 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heating process of a continuous furnace, in particular for steel products and continuous furnace |
| US6183246B1 (en) | 1998-11-10 | 2001-02-06 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method of heating a continuously charged furnace particularly for steel-making products, and continuously charged heating furnace |
| EP1083397A1 (en) * | 1999-09-08 | 2001-03-14 | Praxair Technology, Inc. | Method for reducing defects in ceramic tile production |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA859313B (en) | 1986-08-27 |
| DE3444542A1 (en) | 1986-06-19 |
| EP0184749B1 (en) | 1992-02-26 |
| ATE72894T1 (en) | 1992-03-15 |
| EP0184749A3 (en) | 1989-04-05 |
| DE3585432D1 (en) | 1992-04-02 |
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