EP0144945A2 - Process and apparatus for discontinuously operating coke ovens with vertical chambers - Google Patents
Process and apparatus for discontinuously operating coke ovens with vertical chambers Download PDFInfo
- Publication number
- EP0144945A2 EP0144945A2 EP84114624A EP84114624A EP0144945A2 EP 0144945 A2 EP0144945 A2 EP 0144945A2 EP 84114624 A EP84114624 A EP 84114624A EP 84114624 A EP84114624 A EP 84114624A EP 0144945 A2 EP0144945 A2 EP 0144945A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- coking
- coke
- heating
- coal
- 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
- 239000000571 coke Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004939 coking Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000003245 coal Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000010411 cooking Methods 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 238000002309 gasification Methods 0.000 description 8
- 241000273930 Brevoortia tyrannus Species 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- C10B3/00—Coke ovens with vertical chambers
- C10B3/02—Coke ovens with vertical chambers with heat-exchange devices
-
- 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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Definitions
- the invention relates to a method for the discontinuous operation of vertical chamber coke ovens with indirect heating of the coking chambers to produce blast furnace coke from moist or preheated fine coal, and also devices for carrying out the method.
- the subject of DE-PS 27 56 330 is vertical chamber coking ovens in battery-wise arrangement for the continuous coking of briquettes made of hard coal, brown coal or peat.
- the briquettes are continuously moved downward through the coking shafts and, following the coking stage, reach a cooling stage in which they are cooled directly by cooling gases which are circulated.
- cooling gases which are circulated.
- direct cooling is only possible with briquettes and not with coke from fine coal filled in the coke oven.
- the object of the invention is now to propose a method of the generic type, in which the coke can be cooled dry and used to produce economically usable steam without major additional structural outlay.
- an environmentally friendly method and devices for carrying out this method are to be found.
- the inventive method for the discontinuous operation of Vertikalhuntöfen provides that the egarte from g glowing coke cake from the coking chambers in the vertical direction by at most lowers e-down by the amount of its height from g and the chamber again is filled with fine coal and the lowered coke cake is not moved during the next cooking time and is only cooled indirectly and its heat is completely on evaporator surfaces for generating z.
- B. emits a high-tension steam.
- the lowering of the fully cooked hot coke cake is brought about by the lower removal of the cold and cooled coke from the cooling chamber.
- the fully cooked coke cake should only be lowered by no more than the amount of its height, so that the new fine coal filling definitely gets into the hot, heated area of the coking chamber.
- the furnace chamber doors with a thick insulating plug arranged directly below the coking stage are eliminated.
- the column of the coke located in the cooling chamber forms the insulation and shielding from the hot coking chamber, and the temperatures below the cooling chamber are low. Both the discharge of the cold coke and the sealing of the coking and cooling chamber from the atmosphere phere make in this temperature range is only minor problems.
- the coking chamber is filled again and both the on-coking coal cake in the Verkokun g shunt and the will to be cooled coke cake in the cooling chamber during the entire Cooking time not moving.
- the coke is only indirectly cooled in the cooling chamber and releases all of its heat to the evaporator surfaces to generate a high-tension steam.
- the steam production can during operation in a simple manner made uniform by the fact that as many cooling chambers be combined with different temperature levels and connected to one or more steam drums in accordance with the requirements .
- a steam superheater can also be connected downstream of the cooling walls.
- the coking chambers and cooling chambers each form a closed unit that can be easily sealed off from the atmosphere in regions with a relatively low temperature.
- This filling system achieves a high bulk density in the coking chamber and at the same time there are no emission problems when filling the hot coking chambers, because the coal storage chamber can be sealed gas-tight at the top while the prepared coal cake is being lowered.
- cooling chamber directly under the coking chamber and to carry out the cooling walls on evaporator surfaces with flat membrane walls, for example in a tube-web-tube construction.
- Such cooling walls from z. B. iron materials with high thermal conductivity have proven to be useful. It is favorable to let the pipe axes run in the movement direction of the coke and to connect the pipes to horizontally running distributors and in the flow direction to let slightly rising collectors flow. With this construction of the evaporator surfaces, the evaporator circuit can easily be operated even in natural circulation.
- the z. B. in horizontal chamber coking ovens required operating machines such as coke squeezing machines, coke oven carriages, Löschwa g s, it is possible according to the invention in a relatively simple manner to arrange the entire coking oven battery with the cooling chambers and the regenerators in a gas-tight encapsulation. In this way, emissions can be almost completely avoided.
- the coal storage chamber (21) with the upper coal filling funnel (24) and the upper closure flaps (22) and the lower closure flap (23) is located above the coking furnace chamber (1), which is expediently hydraulic in sections is operated.
- the raw gas collecting space is located above the upper edge (19) of the coal filling and is limited at the top by the closure flap (23).
- the raw gases are withdrawn from the furnace chamber in the longitudinal direction of the furnace chamber via this raw gas collecting space and pass through the raw gas extraction line (26) into the receiver (27).
- a heating wall (18) which, according to FIGS. 4 and 5, the combustion media are supplied or the waste heat is removed.
- the individual Verkokun g sofenhuntn (1) close below the cooling chambers (2), whose walls are equipped evaporator (17) with lower distribution lines (15) and top collectors (16). Between the evaporators walls (17) of the cooling chamber (2) there is the lattice support structure (52) on which the entire coking furnace chambers (1) are mounted. As can be seen in particular from FIG. 1, the upper transfer chutes (14) are located under the cooling chambers (2), from which the cooled coke is drawn off into the intermediate bunkers (3) by means of the cyclically operated rocking tables (4). An intermediate bunker can be assigned to two or three cooling chambers.
- the coke is fed to a bunker lock system via rocker tables (5), cross conveyors (6), top transfer chutes (7), scraper belts (8), as described in more detail, for example, in DE-PS 30 14 574 is.
- the coke is alternately fed to the discharge locks (9), which are provided with the shut-off devices (11) and (12), via swivel tables (10).
- the coke can then be conveyed to conveyor belts for sieving, for example via vibratory conveyors (13).
- a gas-tight encapsulation (25) is also indicated in FIG. 1 by a dash-dotted line.
- the heating wall (18) in the form of a four-pass system with the arrangement of the vertical heating trains (28) is indicated. But this Schuwandsystem might as well consist of twin trains or of a semi-g eteil- th system.
- the regenerators for preheating the combustion media are not located under the heating walls, but next to the entire vertical chamber coking ovens. If, for example, a four-train system operated with high-power gas is assumed, the lower horizontal channel (43), (Fi.) Is connected, for example, via the regenerators (30) and (31) indicated in Figure 2 on the left, the connecting lines (32) and (33) g .
- the supply duct (44), the vertical hollow duct duct (45) and the height-graded slot openings (46) are fed to the heating cables (28).
- the Stark g as is then during the same changeover period via the high-pressure gas duct (47) to the high-pressure gas nozzles (48) at the foot of the heating cables.
- the waste heat then flows through the slots (46a), the vertical hollow channel (45a), the supply channel (44a) into the lower horizontal channel (43a) and over the two connecting lines (32a) and (33a) to the regenerators (30a) and (31a). The direction of flow is then reversed in the next changeover period.
- FIGS. 5 and 7 also show a twin heating train system with gradual supply of the combustion air for high-gas operation.
- the combustion air flows through the lower horizontal channel (34), the supply channel (35), the hollow binder channel (36) and the height-graded outlet slots (37) into the heating cables (28).
- the high-pressure gas is again supplied via the high-pressure gas duct (38) and the high-pressure gas nozzles (39).
- the waste heat is drawn to the regenerators via the slots (37a), the hollow binder duct (36a), the feed duct (35a) and the lower horizontal duct (34a).
- the semi-split system would be an option.
- the lower horizontal channels would be interrupted by a stable partition halfway through the furnace chamber.
- the air would be supplied via the regenerator (30) and the supply line (32) and a lower horizontal channel during a changeover period, and the lean gas would be supplied via the adjacent regenerator (31) and the supply line (33) and the other lower horizontal channel, while on the other half of the heating wall, the waste heat would be drawn off via the two lower horizontal channels lying next to one another and via the Lines (32a), (33a) would lead to the regenerators (30a) and (31a).
- FIG. 3 shows the waste heat pots (51) and (53), which are assigned to the regenerators (31) and (31a) and (32) and (32a).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum diskontinuierlichen Betrieb von Vertikalkammerverkokunasöfen mit indirekter Beheizung der Verkokungskammern zur Erzeugung eines Hochofenkokses aus feuchter oder vorerhitzter Feinkohle sowie auch Vorrichtungen zur Durchführung des Verfahrens.The invention relates to a method for the discontinuous operation of vertical chamber coke ovens with indirect heating of the coking chambers to produce blast furnace coke from moist or preheated fine coal, and also devices for carrying out the method.
Aus der DE-PS 26 57 213 sind batterieweise angeordnete vertikale Verkokungsofenkammern bekannt mit Kohleeinfüllschächten, Verschlüssen und Abzugseinrichtungen für den glühenden Koks sowie zwischen den Ofenkammern angeordneten Heizwänden mit Heizzügen und daneben angeordneten Regeneratoren für die Vorwärmung der Heizmedien und Abkühlung der Beheizungsabgase. Bei den dort dargestellten Vertikalkammerverkokungsöfen wird der heiße Koks am Ende der Garungszeit unten aus den Kammern abgezogen und in geeignete Einrichtungen zum Abtransport des glühenden Kokses gefüllt. Ober eine Ausnutzung der Wärme des glühenden Kokses ist bei dieser Schrift noch nichts ausgesagt.From DE-PS 26 57 213 battery-arranged vertical coking ovens are known with coal filling shafts, closures and extraction devices for the glowing coke and heating walls arranged between the oven chambers with heating trains and adjacent regenerators for preheating the heating media and cooling the heating exhaust gases. In the vertical chamber coking ovens shown there, the hot coke is withdrawn from the bottom of the chambers at the end of the cooking time and filled into suitable devices for removing the glowing coke. Nothing is said in this document about utilizing the heat of the glowing coke.
Bei dem Gegenstand der DE-PS 27 56 330 handelt es sich um Vertikalkammerverkokungsöfen in batterieweiser Anordnung zum kontinuierlichen Verkoken von Briketts aus Stein-, Braunkohle oder Torf. Bei dem angewendeten Verfahren werden die Briketts kontinuierlich durch die Verkokungsschächte nach unten bewegt und gelangen im Anschluß an die Verkokungsstufe in eine Kühlstufe, in der sie direkt von im Kreislauf geführten Kühlgasen gekühlt werden. Eine derartige direkte Kühlung ist aber nur bei Briketts und nicht bei Koks aus in die Verkokunasöfen eingefüllter Feinkohle möglich.The subject of DE-PS 27 56 330 is vertical chamber coking ovens in battery-wise arrangement for the continuous coking of briquettes made of hard coal, brown coal or peat. In the process used, the briquettes are continuously moved downward through the coking shafts and, following the coking stage, reach a cooling stage in which they are cooled directly by cooling gases which are circulated. However, such direct cooling is only possible with briquettes and not with coke from fine coal filled in the coke oven.
Aus der englischen Patentschrift 670,301 sind schließlich diskontinuierlich betriebene Vertikalkammerverkokungsöfen bekannt, bei denen direkt unterhalb der eigentlichen Verkokungsstufe eine Vergasungsstufe sich befindet. Am unteren Ende dieser Vergasungsstufe wird dabei Wasserdampf in die Kokskammer zur Vergasung eines Teiles des Kokses eingeleitet. Am übergang von der Vergasungsstufe zur darüber angeordneten Verkokungsstufe soll dann das sogenannte Entgasungsgas über öffnungen aus der Vergasungskammer abgezogen und in eine eigene Vorlage geleitet werden. Der zur Vergasung erforderliche Wasserdampf wird dabei in einer Kühlstufe unterhalb der Vergasungsstufe durch indirekte Kühlung des Kokses erzeugt. Der gesamte erzeugte Dampf wird dabei allerdings wieder in die Vergasungsstufe eingeleitet,und es steht kein zusätzlicher verwertbarer Dampf zur Verfügung. Außerdem ist der bauliche Aufwand durch die zusätzlich vorgesehene Vergasungsstufe bei den bekannten Vertikalkammeröfen erheblich.Finally, from the English patent specification 670,301 discontinuously operated vertical chamber coking ovens are known, in which a gasification stage is located directly below the actual coking stage. At the lower end of this gasification stage, water vapor is introduced into the coke chamber to gasify part of the coke. At the transition from the gasification stage to the coking stage arranged above it, the so-called degassing gas is then to be drawn off from the gasification chamber through openings and passed into a separate receiver. The water vapor required for gasification is generated in a cooling stage below the gasification stage by indirect cooling of the coke. However, all of the steam generated is reintroduced into the gasification stage, and no additional usable steam is available. In addition, the structural outlay due to the additionally provided gasification stage in the known vertical chamber furnaces is considerable.
Aufgabe der Erfindung ist es nun, ein Verfahren der gattungsgemäßen Art vorzuschlagen, bei dem ohne größeren zusätzlichen baulichen Aufwand der Koks trocken gekühlt und zur Erzeugung von wirtschaftlich verwertbarem Dampf genutzt werden kann. Darüber hinaus soll ein umweltfreundliches Verfahren und Vorrichtungen zur Durchführung dieses Verfahrens gefunden werden.The object of the invention is now to propose a method of the generic type, in which the coke can be cooled dry and used to produce economically usable steam without major additional structural outlay. In addition, an environmentally friendly method and devices for carrying out this method are to be found.
Die erfindungsgemäße Lösung dieser Aufgabe ist im Kennzeichen des Hauptanspruches definiert. In den Verfahrensansprüchen 2 bis 4 sind weitere,besonders günstige erfindungsgemäße Maßnahmen enthalten. Eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens sowie besonders günstige Ausführungsformen der Vorrichtung sind in den Ansprüchen 5 bis 14 enthalten.The achievement of this object is defined in the characterizing part of the main claim. Process claims 2 to 4 contain further, particularly advantageous measures according to the invention. A device for carrying out the method according to the invention and particularly favorable embodiments of the device are contained in
Das erfindungsgemäße Verfahren zum diskontinuierlichen Betrieb von Vertikalkammeröfen sieht vor, daß der ausgegarte glühende Kokskuchen aus den Verkokungskammern in vertikaler Richtung nach unten höchstens um den Betrag seiner Höhe abge-senkt und die Kammer von neuem mit Feinkohle gefüllt wird und der abgesenkte Kokskuchen während der nächsten Garungszeit nicht bewegt und nur indirekt gekühlt wird und seine Wärme vollständig an Verdampferflächen zur Erzeugung z. B. eines hochgespannten Dampfes abgibt. Das Absenken des ausgegarten heißen Kokskuchens wird dabei durch die untere Entnahme des kalten und gekühlten Kokses aus der Kühlkammer bewirkt. Der ausgegarte Kokskuchen soll dabei nur höchstens um den Betrag seiner Höhe abgesenkt werden, damit die neue Feinkohlefüllung auf jeden Fall in den heißen, geheizten Bereich der Verkokungskammer gelangt. Bei dem erfindungsgemäßen Verfahren entfallen vor allem die direkt unter der Verkokungsstufe angeordneten Ofenkammertüren mit einem dicken Isolierstopfen. Statt dessen bildet bei dem erfindungsgemäßen Verfahren die Säule des in der Kühlkammer befindlichen Kokses die Isolierung und Abschirmung gegenüber der heißen Verkokungskammer und bei dem Austrag unterhalb der Kühlkammer herrschen nur geringe Temperaturen. Sowohl der Austrag des kalten Kokses als auch die Abdichtung der Verkokungs- und Kühlkammer gegenüber der Atmosphäre stellen in diesem Temperaturbereich nur geringe Probleme dar. Nach Beendigung der Absenkung des Kokskuchens um den Betrag seiner Höhe wird die Verkokungskammer neu gefüllt und sowohl der zu verkokende Kohlekuchen in der Verkokungskammer als auch der zu kühlende Kokskuchen in der Kühlkammer werden während der gesamten Garungszeit nicht bewegt. Der Koks wird in der Kühlkammer nur indirekt gekühlt und gibt seine Wärme vollständig an Verdampferflächen zur Erzeugung eines hochgespannten Dampfes ab.The inventive method for the discontinuous operation of Vertikalkammeröfen provides that the egarte from g glowing coke cake from the coking chambers in the vertical direction by at most lowers e-down by the amount of its height from g and the chamber again is filled with fine coal and the lowered coke cake is not moved during the next cooking time and is only cooled indirectly and its heat is completely on evaporator surfaces for generating z. B. emits a high-tension steam. The lowering of the fully cooked hot coke cake is brought about by the lower removal of the cold and cooled coke from the cooling chamber. The fully cooked coke cake should only be lowered by no more than the amount of its height, so that the new fine coal filling definitely gets into the hot, heated area of the coking chamber. In the method according to the invention, the furnace chamber doors with a thick insulating plug arranged directly below the coking stage are eliminated. Instead, in the method according to the invention, the column of the coke located in the cooling chamber forms the insulation and shielding from the hot coking chamber, and the temperatures below the cooling chamber are low. Both the discharge of the cold coke and the sealing of the coking and cooling chamber from the atmosphere phere make in this temperature range is only minor problems. After completion of the reduction of the coke cake by the amount of its height the coking chamber is filled again and both the on-coking coal cake in the Verkokun g skammer and the will to be cooled coke cake in the cooling chamber during the entire Cooking time not moving. The coke is only indirectly cooled in the cooling chamber and releases all of its heat to the evaporator surfaces to generate a high-tension steam.
Da immer eine ganze Serie von Verkokungsöfen und Kühlkammern in einer Batterie zusammengefaßt sind, läßt sich die Dampfproduktion während des Betriebes auf einfache Weise dadurch vergleichmäßigen, daß möglichst viele Kühlkammern mit unterschiedlichem Temperaturniveau kombiniert werden und an entsprechend den Erfordernissen eine oder mehrere Dampftrommeln angeschlossen ist. Dabei kann auch separat von den Kühlwänden ein Dampfüberhitzer nachgeschaltet sein.Since always a whole series of Verkokun g söfen and cooling chambers are combined in a battery, the steam production can during operation in a simple manner made uniform by the fact that as many cooling chambers be combined with different temperature levels and connected to one or more steam drums in accordance with the requirements . A steam superheater can also be connected downstream of the cooling walls.
Das erfindungsgemäße Verfahren bietet eine Reihe von wichtigen Vorteilen gegenüber den bisher bekannten Verfahren:
- Durch den direkten Anschluß der Kühlkammer an die Verkokungskammer entfallen alle zusätzlichen Einrichtungen zum Transport des heißen Kokses, wie er bei den üblichen Horizontalkammerverkokungsöfen zwangsläufig erforderlich ist.
- The direct connection of the cooling chamber to the coking chamber eliminates all additional facilities for transporting the hot coke, as is inevitably required in the conventional horizontal chamber coking ovens.
Die Verkokungskammern und Kühlkammern bilden jeweils eine geschlossene Einheit, die in Bereichen mit relativ niedriger Temperatur auf einfache Weise gegenüber der Atmosphäre abgedichtet werden können.The coking chambers and cooling chambers each form a closed unit that can be easily sealed off from the atmosphere in regions with a relatively low temperature.
Durch die Kombination von indirekter Beheizung des Kohlekuchens und indirekter Kühlung des Kokskuchens ist eine saubere Trennung der Beheizungsstufe sowie der Dampferzeugungsstufe von der Kohle, dem Rohgas und dem heißen Koks möglich. Abdichtungs- bzw. Druckregelungsprobleme entstehen dabei nicht.The combination of indirect heating of the coal cake and indirect cooling of the coke cake enables a clean separation of the heating stage and the steam generation stage from the coal, the raw gas and the hot coke. From There are no sealing or pressure control problems.
Es läßt sich vor allem ein wirtschaftlich gut verwertbarer, insbesondere hochgespannter sauberer Dampf erzeugen.Above all, it is possible to produce an economically viable, in particular highly strained, clean steam.
Schließlich wird durch die trockene Kühlung des Kokses und die extrem geringe Bewegung des noch heißen Kokses ein extrem grobstückiger und abriebfester, wasserfreier Koks erzeugt.Finally, the dry cooling of the coke and the extremely low movement of the still hot coke produce an extremely coarse and abrasion-resistant, water-free coke.
Es hat sich erfindungsgemäß als günstig erwiesen, den heißen Kokskuchen nur so weit abzusenken, bis der Kamm des heißen Kokskuchens sich etwa einen Meter oberhalb des Heizzugfußes befindet. Auf diese Weise kann eine vollständige Ausgarung des Kokskuchens erreicht werden.It has proven to be advantageous according to the invention to lower the hot coke cake only until the crest of the hot coke cake is approximately one meter above the heating cable foot. In this way, the coke cake can be fully cooked.
Man kann auch erfindungsgemäß vorsehen, den gesamten Kohlekuchen in einer Kohlevorratskammer oberhalb der Verkokungskammer zu bilden und eventuell sogar vorzuverdichten und anschließend möglichst als Ganzes in die Verkokungskammer zu füllen. Man erreicht durch dieses Füllsystem eine hohe Schüttdichte in der Verkokungskammer und gleichzeitig treten beim Füllen der heißen Verkokungskammern keine Emissionsprobleme auf, weil während des Absenkens des vorbereiteten Kohlekuchens die Kohlevorratskammer oben gasdicht verschlossen werden kann.It can also be provided according to the invention to form the entire coal cake in a coal storage chamber above the coking chamber and possibly even to pre-compress it and then to fill the coking chamber as a whole if possible. This filling system achieves a high bulk density in the coking chamber and at the same time there are no emission problems when filling the hot coking chambers, because the coal storage chamber can be sealed gas-tight at the top while the prepared coal cake is being lowered.
Zur Durchführung des gattungsgemäßen Verfahrens wird erfindungsgemäß vorgeschlagen, die Kühlkammer direkt unter der Verkokungskammer anzuordnen und die Kühlwände an Verdampferflächen mit ebenen Membranwänden z.B. in Rohr-Steg-Rohr-Konstruktion auszuführen. Derartige Kühlwände aus z. B. Eisenmaterialien mit hoher Wärmeleitfähigkeit haben sich als zweckmäßig erwiesen. Günstig ist es dabei, die Rohrachsen in Bewegungsrichtung des Kokses verlaufen zu lassen und die Rohre an horizontal verlaufende Verteiler anzuschließen und in Strömungsrichtung leicht ansteigende Sammler münden zu lassen. Der Verdampferkreislauf läßt sich bei dieser Bauweise der Verdampferflächen auf einfache Weise sogar im Naturumlauf betreiben.To carry out the generic method, it is proposed according to the invention to arrange the cooling chamber directly under the coking chamber and to carry out the cooling walls on evaporator surfaces with flat membrane walls, for example in a tube-web-tube construction. Such cooling walls from z. B. iron materials with high thermal conductivity have proven to be useful. It is favorable to let the pipe axes run in the movement direction of the coke and to connect the pipes to horizontally running distributors and in the flow direction to let slightly rising collectors flow. With this construction of the evaporator surfaces, the evaporator circuit can easily be operated even in natural circulation.
Zur Ausbildung der Verkokungskammer haben sich die in den Ansprüchen 7 und 8 definierten Konizitäten als zweckmäßig erwiesen. In den Ansprüchen 9 und 10 sind darüber hinaus sinnvolle und günstige Beheizungssysteme beschrieben.The conicalities defined in
Da bei dem erfindungsgemäßen Verfahren und auch den Vorrichtungen zur Durchführung dieses Verfahrens die sonst z. B. bei Horizontalkammerverkokunesöfen erforderlichen Bedienungsmaschinen wie Koksausdrückmaschinen, Koksofenführungswagen, Löschwagen entfallen, ist es erfindungsgemäß auf relativ einfache Weise möglich, die gesamte Verkokungsofenbatterie mit den Kühlkammern und den Regeneratoren in einer gasdichten Einkapselung anzuordnen. Auf diese Weise können die Emissionen fast vollständig vermieden werden.Since in the method according to the invention and also the devices for performing this method, the z. B. in horizontal chamber coking ovens required operating machines such as coke squeezing machines, coke oven carriages, Löschwa g s, it is possible according to the invention in a relatively simple manner to arrange the entire coking oven battery with the cooling chambers and the regenerators in a gas-tight encapsulation. In this way, emissions can be almost completely avoided.
Die Erfindung wird anhand der beigefügten Figuren 1 bis 7 beispielsweise näher erläutert.
Figur 1 zeigt die erfindungsgemäße Vorrrichtung mit Kohlevorratskammern, Verkokungskammern, Kühlkammern, Zwischenbunkern und Austragsschleuse in der schematischen Anordnung.- Die
Figuren 2 und 2a zeigen im Vergleich zurFigur 1 in etwas vergrößertem Maßstab teilweise in der Seitenansicht, teilweise als Schnitt die erfindungsgemäße Vorrichtung. Figur 3 ist ein waagerechter Schnitt gemäß Linie A-A vonFigur 2.Figur 4 zeigt im.Detail die Anordnung der Zuführungskanäle für die Brennmedien unterhalb der Heizwand, wie sie inFigur 6 dargestellt ist.Figur 5 zeigt ähnlich wieFigur 4 die Anordnung der Zuführungskanäle unterhalb der Heizwand, wie sie inFigur 7 dargestellt ist.Figur 6 ist ein waagerechter Schnitt durch einen Teil einer Heizwand für den Starkgasbetrieb nach dem Viererheizzug-System.Figur 7 ist ein waagerechter Schnitt durch einen Teil der Heizwand eines Zwillingszug-Systems für Starkgas.
- Figure 1 shows the device according to the invention with coal storage chambers, coking chambers, cooling chambers, intermediate bunkers and discharge lock in the schematic arrangement.
- FIGS. 2 and 2a show, in comparison to FIG. 1, on a somewhat enlarged scale, partly in side view and partly in section, the device according to the invention.
- Figure 3 is a horizontal section along line AA of Figure 2.
- Figure 4 shows in detail the arrangement of the supply channels for the combustion media below the heating wall, as shown in Figure 6.
- FIG. 5 shows, similar to FIG. 4, the arrangement of the feed channels below the heating wall, as shown in FIG. 7.
- Figure 6 is a horizontal section through part of a heating wall for heavy gas operation according to the four-heating system.
- Figure 7 is a horizontal section through part of the heating wall of a twin train system for high gas.
Nach den Darstellungen in den Figuren 1, 2 und 2a befindet sich oberhalb der Verkokungsofenkammer (1) die Kohlevorratskammer (21) mit dem oberen Kohleeinfülltrichter (24) und den oberen Verschlußklappen (22) sowie der unteren Verschlußklappe (23), die zweckmäßigerweise abschnittsweise hydraulisch betätigt wird. Zum Abzug der Rohgase aus der Verkokungsofenkammer (1) befindet sich oberhalb der Oberkante (19) der Kohlefüllung der Rohgassammelraum, der nach oben hin durch die Verschlußklappe (23) begrenzt ist. Ober diesen Rohgassammelraum werden die Rohgase in Ofenkammerlännsrichtung aus der Ofenkammer abgezogen und gelangen über die Rohgasabzuasleitung (26) in die Vorlage (27). Zwischen den einzelnen Verkokungsofenkammern (1) befindet sich jeweils eine Heizwand (18), der gemäß den Figuren 4 und 5 die Verbrennungsmedien zugeführt bzw. die Abhitze entnommen wird. Direkt an die einzelnen Verkokungsofenkammern (1) schließen sich unterhalb die Kühlkammern (2), deren Verdampferwände (17) mit unteren Verteilerleitungen (15) und oberen Sammlern (16) ausgerüstet sind. Zwischen den Verdampferwänden (17) der Kühlkammer (2) befindet sich das Gittertragwerk (52), auf dem die gesamten Verkokungsofenkammern (1) gelagert sind. Wie insbesondere aus der Figur 1 ersichtlich ist, befinden sich unter den Kühlkammern (2) die Obergabeschurren (14), aus denen der gekühlte Koks mittels der taktweise bedienten Wipptische (4) in die Zwischenbunker (3) abgezogen wird. Dabei kann jeweils ein Zwischenbunker zwei oder drei Kühlkammern zugeordnet sein. Aus den Zwischenbunkern (3) wird der Koks über Wipptische (5), Querförderer (6), Obergabeschurren (7), Kratzbänder (8) einem Bunker-Schleusen-System zugeführt, wie es beispielsweise in der DE-PS 30 14 574 näher beschrieben ist. Ober Schwenktische (10) wird der Koks wechselweise den Austragsschleusen (9) zugeführt, die mit den Absperrorganen (11) und (12) versehen sind. Beispielsweise über Schwingförderer (13) kann der Koks dann auf Transportbändern zur Sieberei gefördert werden. In der Figur 1 ist außerdem durch eine strichpunktierte Linie eine gasdichte Einkapselung (25) angedeutet.According to the representations in FIGS. 1, 2 and 2a, the coal storage chamber (21) with the upper coal filling funnel (24) and the upper closure flaps (22) and the lower closure flap (23) is located above the coking furnace chamber (1), which is expediently hydraulic in sections is operated. To remove the raw gases from the coking furnace chamber (1), the raw gas collecting space is located above the upper edge (19) of the coal filling and is limited at the top by the closure flap (23). The raw gases are withdrawn from the furnace chamber in the longitudinal direction of the furnace chamber via this raw gas collecting space and pass through the raw gas extraction line (26) into the receiver (27). Between the individual coking furnace chambers (1) there is in each case a heating wall (18) which, according to FIGS. 4 and 5, the combustion media are supplied or the waste heat is removed. Directly to the individual Verkokun g sofenkammern (1) close below the cooling chambers (2), whose walls are equipped evaporator (17) with lower distribution lines (15) and top collectors (16). Between the evaporators walls (17) of the cooling chamber (2) there is the lattice support structure (52) on which the entire coking furnace chambers (1) are mounted. As can be seen in particular from FIG. 1, the upper transfer chutes (14) are located under the cooling chambers (2), from which the cooled coke is drawn off into the intermediate bunkers (3) by means of the cyclically operated rocking tables (4). An intermediate bunker can be assigned to two or three cooling chambers. From the intermediate bunkers (3), the coke is fed to a bunker lock system via rocker tables (5), cross conveyors (6), top transfer chutes (7), scraper belts (8), as described in more detail, for example, in DE-PS 30 14 574 is. The coke is alternately fed to the discharge locks (9), which are provided with the shut-off devices (11) and (12), via swivel tables (10). The coke can then be conveyed to conveyor belts for sieving, for example via vibratory conveyors (13). A gas-tight encapsulation (25) is also indicated in FIG. 1 by a dash-dotted line.
In der Figur 2 ist in der linken Hälfte die Heizwand (18) in der Ausbildung als Vierzugsystem mit der Anordnung der senkrechten Heizzüge (28) angedeutet. Dieses Heizwandsystem könnte aber genauso gut aus Zwillingszügen oder aus einem halbgeteil- ten System bestehen. Im Gegensatz zu den üblichen Horizontalkammerverkokungsöfen befinden sich die Regeneratoren zur Vorwärmung der Verbrennungsmedien nicht unter den Heizwänden, sondern neben den gesamten Vertikalkammerverkokungsöfen. Geht man beispielsweise von einem mit Starkgas betriebenen Vierzugsystem aus, so wird beispielsweise über die in der Figur 2 links angedeuteten Regeneratoren (30) und (31), die Verbindungsleitungen (32) und (33), den unteren Horizontalkanal (43), (Fig. 4),denZuführungskanal (44), den senkrechten Hohlbinderkanal (45) und die höhengestuften Schlitzöffnungen (46) den Heizzügen (28) Luft zugeführt. Das Starkgas wird dann während der gleichen Umstellperiode über den Starkgaskanal (47) den Starkgasdüsen (48) am Fuße der Heizzüge zugeführt. In den beiden benachbarten Heizzügen (28a, Fig. 6) der zugehörigen Viererheizzuggruppe strömt dann die Abhitze durch die Schlitze (46a), den senkrechten Hohlbinderkanal (45a), den Zuführungskanal (44a) in den unteren Horizontalkanal (43a) und über die beiden Verbindungsleitungen (32a) und (33a) zu den Regeneratoren (30a) und (31a). In der nächsten Umstellperiode wird dann die Strömungsrichtung umgekehrt.In the left half of FIG. 2, the heating wall (18) in the form of a four-pass system with the arrangement of the vertical heating trains (28) is indicated. But this Heizwandsystem might as well consist of twin trains or of a semi-g eteil- th system. In contrast to the usual horizontal chamber coking ovens, the regenerators for preheating the combustion media are not located under the heating walls, but next to the entire vertical chamber coking ovens. If, for example, a four-train system operated with high-power gas is assumed, the lower horizontal channel (43), (Fi.) Is connected, for example, via the regenerators (30) and (31) indicated in Figure 2 on the left, the connecting lines (32) and (33) g . 4), the supply duct (44), the vertical hollow duct duct (45) and the height-graded slot openings (46) are fed to the heating cables (28). The Stark g as is then during the same changeover period via the high-pressure gas duct (47) to the high-pressure gas nozzles (48) at the foot of the heating cables. In the two adjacent heating trains (28a, Fig. 6) of the associated four-heating train group, the waste heat then flows through the slots (46a), the vertical hollow channel (45a), the supply channel (44a) into the lower horizontal channel (43a) and over the two connecting lines (32a) and (33a) to the regenerators (30a) and (31a). The direction of flow is then reversed in the next changeover period.
In den Figuren 5 und 7 ist ebenfalls für den Starkgasbetrieb ein Zwillingsheizzugssystem mit stufenweiser Zuführung der Verbrennungsluft dargestellt. Hierbei strömt die Verbrennungsluft während einer Umstellperiode über den unteren Horizontalkanal (34), den Zuführungskanal (35), den Hohlbinderkanal (36) und die höhengestuften Austrittsschlitze (37) in die Heizzüge (28). Gleichzeitig wird wiederum das Starkgas über den Starkgaskanal (38) und die Starkgasdüsen (39) zugeführt. Im Nachbarheizzug (28a) zieht die Abhitze über die Schlitze (37a), den Hohlbinderkanal (36a), den Zuführungskanal (35a), den unteren Horizontalkanal (34a) zu den Regeneratoren.FIGS. 5 and 7 also show a twin heating train system with gradual supply of the combustion air for high-gas operation. During a changeover period, the combustion air flows through the lower horizontal channel (34), the supply channel (35), the hollow binder channel (36) and the height-graded outlet slots (37) into the heating cables (28). At the same time, the high-pressure gas is again supplied via the high-pressure gas duct (38) and the high-pressure gas nozzles (39). In the neighboring heating train (28a), the waste heat is drawn to the regenerators via the slots (37a), the hollow binder duct (36a), the feed duct (35a) and the lower horizontal duct (34a).
Wollte man mit den vorhandenen zwei unteren Horizontalkanälen in jeder Heizwand auch mit Schwachgas beheizen, so würde sich das halbgeteilte System anbieten. Dazu würden die unteren Horizontalkanäle auf halber Ofenkammerlänge durch eine stabile Trennwand unterbrochen. Dann würde gemäß Figur 2 während einer Umstellperiode über den Regenerator (30) und die Zuführungsleitung (32) und einen unteren Horizontalkanal die Luft zugeführt sowie über den benachbarten Regenerator (31) und die Zuführungsleitung (33) sowie den anderen unteren Horizontalkanal das Schwachgas zugeführt, während auf der anderen Heizwandhälfte über die beiden nebeneinander liegenden unteren Horizontalkanäle die Abhitze abgezogen würde und über die Leitungen (32a), (33a) zu den Regeneratoren (30a) und (31a) geführt würden.If you wanted to use the existing two lower horizontal channels in each heating wall to heat with lean gas, the semi-split system would be an option. For this purpose, the lower horizontal channels would be interrupted by a stable partition halfway through the furnace chamber. Then, according to FIG. 2, the air would be supplied via the regenerator (30) and the supply line (32) and a lower horizontal channel during a changeover period, and the lean gas would be supplied via the adjacent regenerator (31) and the supply line (33) and the other lower horizontal channel, while on the other half of the heating wall, the waste heat would be drawn off via the two lower horizontal channels lying next to one another and via the Lines (32a), (33a) would lead to the regenerators (30a) and (31a).
Aus der Figur 3 sind schließlich noch die Abhitzetöpfe (51) und (53), die den Regeneratoren (31) und (31a) sowie (32) und (32a) zugeordnet sind, ersichtlich.Finally, FIG. 3 shows the waste heat pots (51) and (53), which are assigned to the regenerators (31) and (31a) and (32) and (32a).
- (1) Verkokungskammer(1) coking chamber
- (2) Kühlkammer(2) cooling chamber
- (3) Zwischenbunker(3) intermediate bunker
- (4) Wipptische(4) rocking tables
- (5) Wipptische(5) rocking tables
- (6) Querförderer(6) cross conveyor
- (7) übergabeschurren(7) transfer chutes
- (8) Kratzband(8) Scratching tape
- (9) Austragsschleuse(9) discharge lock
- (10) Schwenktisch(10) swivel table
- (11) Absperrorgan(11) shut-off device
- (12) Absperrorgan(12) shut-off device
- (13) Schwingförderer(13) Vibratory conveyor
- (14) Obergabeschurren(14) Transfer chimneys
- (15) Verteiler(15) distributor
- (16) Sammler(16) collectors
- (17) Verdampferwände(17) Evaporator walls
- (18) Heizwände(18) heating walls
- (19) Oberkante Kohlefüllung(19) Top edge of coal filling
- (20) Oberkante heißer Koks nach Entleeren von (1)(20) top edge of hot coke after emptying (1)
- (21) Kohlevorratskammer(21) Coal Storage Chamber
- (22) obere Verschlußklappe zu (21)(22) upper closing flap to (21)
- (23) untere Verschlußklappe zu (21)(23) lower closing flap to (21)
- (24) Kohleeinfülltrichter(24) Charcoal hopper
- (25) gasdichte Einkapselung(25) gastight encapsulation
- (26) Rohgasabzugsleitung(26) Raw gas exhaust line
- (27) Vorlage(27) Submission
- (28/28a) Heizzüge(28 / 28a) heating cables
- (29) oberer Horizontalkanal(29) upper horizontal channel
- (30/30a) Regeneratoren(30 / 30a) regenerators
- (31/31a) Regeneratoren(31 / 31a) regenerators
- (32/32a) Verbindungsleitungen(32 / 32a) connecting lines
- (33/33a) Verbindungsleitungen(33 / 33a) connecting lines
- (34/34a) unterer Horizontalkanal(34 / 34a) lower horizontal channel
- (35/35a) Zuführungskanäle zu (36/36a)(35 / 35a) feed channels to (36 / 36a)
- (36/36a) senkrechte Hohlbinderkanäle(36 / 36a) vertical hollow tie channels
- (37/37a) höhengestufe Schlitzöffnungen(37 / 37a) vertical slot openings
- (38/38a) Starkgaskanäle(38 / 38a) high-pressure gas ducts
- (39/39a) Starkgasdüsen(39 / 39a) Power gas nozzles
- (42) Läuferwände(42) Runner walls
- (43/43a) untere Horizontalkanäle(43 / 43a) lower horizontal channels
- (44/44a) Zuführungskanäle zu (45/45a)(44 / 44a) feed channels to (45 / 45a)
- (45/45a) senkrechte Hohlbinderkanäle(45 / 45a) vertical hollow tie channels
- (46/46a) höhengestufte Schlitzöffnungen(46 / 46a) tiered slot openings
- (47/47a) Starkgaskanäle(47 / 47a) high-pressure gas ducts
- (48/48a) Starkgasdüsen(48 / 48a) heavy gas nozzles
- (51) Abhitzetopf zu (31/31a)(51) Heat sink to (31 / 31a)
- (52) Gittertragwerk unter (18)(52) Lattice structure under (18)
- (53) Abhitzetopf zu (32/32a)(53) Heat sink to (32 / 32a)
- (54) Trennwand zwischen den Regeneratoren(54) Partition between the regenerators
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3344106 | 1983-12-07 | ||
DE19833344106 DE3344106A1 (en) | 1983-12-07 | 1983-12-07 | METHOD AND DEVICE FOR THE DISCONTINUOUS OPERATION OF VERTICAL CHAMBER COOKING OVENS |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0144945A2 true EP0144945A2 (en) | 1985-06-19 |
EP0144945A3 EP0144945A3 (en) | 1987-01-14 |
EP0144945B1 EP0144945B1 (en) | 1989-03-29 |
Family
ID=6216190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840114624 Expired EP0144945B1 (en) | 1983-12-07 | 1984-12-01 | Process and apparatus for discontinuously operating coke ovens with vertical chambers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0144945B1 (en) |
JP (1) | JPS60139788A (en) |
DE (1) | DE3344106A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101519595B (en) * | 2009-03-31 | 2012-06-13 | 山西中元煤洁净技术有限公司 | Coal-carbonifying device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4867795B2 (en) * | 2007-05-30 | 2012-02-01 | マックス株式会社 | Partition member |
USD808799S1 (en) | 2015-11-17 | 2018-01-30 | Hunter Fan Company | Carton with color striping |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE299546C (en) * | ||||
GB485244A (en) * | 1936-07-18 | 1938-05-17 | Otto & Co Gmbh Dr C | Improvements in or relating to the low and medium temperature carbonization of fuels |
DE2657213A1 (en) * | 1976-12-17 | 1978-06-22 | Still Fa Carl | Vertical coke oven battery with very tall retorts - ensures complete coking by heating walls divided into flues |
DE2756330A1 (en) * | 1977-12-17 | 1979-06-21 | Still Fa Carl | VERTICAL CHAMBER CHARMING OVEN IN BATTERY ARRANGEMENT FOR CONTINUOUS CHARMING OF BRIQUETTES MADE OF BRIQUETTE, BROWN COAL OR PEAT |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB670301A (en) * | 1949-06-18 | 1952-04-16 | William David Jones | Improvements in or relating to ovens for the production of gas and coke |
-
1983
- 1983-12-07 DE DE19833344106 patent/DE3344106A1/en not_active Ceased
-
1984
- 1984-12-01 EP EP19840114624 patent/EP0144945B1/en not_active Expired
- 1984-12-06 JP JP25662384A patent/JPS60139788A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE299546C (en) * | ||||
GB485244A (en) * | 1936-07-18 | 1938-05-17 | Otto & Co Gmbh Dr C | Improvements in or relating to the low and medium temperature carbonization of fuels |
DE2657213A1 (en) * | 1976-12-17 | 1978-06-22 | Still Fa Carl | Vertical coke oven battery with very tall retorts - ensures complete coking by heating walls divided into flues |
DE2756330A1 (en) * | 1977-12-17 | 1979-06-21 | Still Fa Carl | VERTICAL CHAMBER CHARMING OVEN IN BATTERY ARRANGEMENT FOR CONTINUOUS CHARMING OF BRIQUETTES MADE OF BRIQUETTE, BROWN COAL OR PEAT |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101519595B (en) * | 2009-03-31 | 2012-06-13 | 山西中元煤洁净技术有限公司 | Coal-carbonifying device |
Also Published As
Publication number | Publication date |
---|---|
JPS60139788A (en) | 1985-07-24 |
EP0144945B1 (en) | 1989-03-29 |
EP0144945A3 (en) | 1987-01-14 |
DE3344106A1 (en) | 1985-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3635215C2 (en) | ||
DE2927240C2 (en) | Method and device for gasifying lumpy fuels with pre-carbonization and cracking of the carbonization gases in the gas generator | |
WO2010003968A2 (en) | Method and device for producing low-tar synthesis gas from biomass | |
DE2808804A1 (en) | PROCESS FOR COOK DRY CLEANING AND DEVICE FOR ITS ACHIEVEMENT | |
DE202006020655U1 (en) | steam reformer | |
EP0071804B1 (en) | Process and apparatus for cooling bulky material | |
EP0144945B1 (en) | Process and apparatus for discontinuously operating coke ovens with vertical chambers | |
DE69515700T2 (en) | STEAM CRACKING METHOD WITH INJECTION OF POWDERS COLLECTED AT A POINT AND DEVICE THEREFOR | |
DE2756330C2 (en) | Vertical chamber coking ovens in a battery-like arrangement for the continuous coking of briquettes made of hard coal, lignite or peat | |
DE3317977C2 (en) | ||
CH283414A (en) | Method and device for carrying out processes in which finely divided solid substances are brought into contact with gases. | |
DE2913666A1 (en) | METHOD FOR THE PRODUCTION OF CABINET COCKS | |
DE3044989C2 (en) | Process for dry coke cooling | |
DE620399C (en) | Process for smoldering fuels with purge gases | |
DE3032212A1 (en) | METHOD FOR THE GASIFICATION OF COCKS | |
DE2818456C2 (en) | Process for the production of abrasion-resistant coke moldings from hard coal, lignite or peat briquettes | |
DE897310C (en) | Method and device for the gasification of fuels | |
EP0085833B1 (en) | Process for the dry cooling of coke and apparatus for carrying out the process | |
DE2818419C2 (en) | Device for the production of abrasion-resistant coke moldings from hard coal or lignite briquettes, charcoal or peat | |
DE352456C (en) | Method and furnace for the extraction of gases from solid fuels | |
DE820434C (en) | Method and device for coking low-baking hard coals | |
DE503814C (en) | Process for heating gas-generating ovens with double heating walls divided into vertical heating trains | |
DE2842425A1 (en) | METHOD AND DEVICE FOR PRODUCING HOT BRIQUETTES | |
EP0085832A2 (en) | Process for the dry cooling of coke, and apparatus for carrying out the process | |
DE899397C (en) | Continuously operated vertical chamber furnace for smoldering and degassing bituminous fuels |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19841201 |
|
AK | Designated contracting states |
Designated state(s): BE FR IT NL |
|
RTI1 | Title (correction) | ||
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE FR IT NL |
|
17Q | First examination report despatched |
Effective date: 19871209 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: STILL OTTO GMBH |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE FR IT NL |
|
ITF | It: translation for a ep patent filed | ||
ET | Fr: translation filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19891116 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19891121 Year of fee payment: 6 |
|
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19891231 Year of fee payment: 6 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19901231 |
|
BERE | Be: lapsed |
Owner name: STILL OTTO G.M.B.H. Effective date: 19901231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19910701 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19910830 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |