WO1986002939A1 - Process and system for dry coke cooling - Google Patents
Process and system for dry coke cooling Download PDFInfo
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- WO1986002939A1 WO1986002939A1 PCT/EP1985/000549 EP8500549W WO8602939A1 WO 1986002939 A1 WO1986002939 A1 WO 1986002939A1 EP 8500549 W EP8500549 W EP 8500549W WO 8602939 A1 WO8602939 A1 WO 8602939A1
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- cooling
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- 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 dry coke cooling according to the preamble of patent claim 1 and a device for carrying out this method according to the preamble of patent claim 3.
- Dry coke cooling has been a process that has been known for many decades, according to which the glowing coke discharged from the coke oven is filled into a cooling shaft, in which it is cooled by the inflowing inert gas. Consequently, such a shaft cooler works on the principle of a moving fixed bed in connection with the direct heat exchange between solid and gas in countercurrent. Until recently, only inert gases have been recommended as cooling gases. The hot inert gas leaving the coke cooler was usually used to generate steam in a tubular boiler.
- the cycle cooling gas containing water vapor of the second cooling stage could be used for the thermal pretreatment of the coking coal, which was carried out in direct contact between the coking coal and the cooling gas, and the vapors obtained during the thermal pretreatment of the coking coal could be used as the cooling gas containing water vapor.
- this known method there is the problem of separating the two cooling gas circuits, which makes it necessary to install a coke lock in the cooling container between the two cooling stages; particular attention was paid to the freedom from water vapor of the inert cooling gas in the first cooling stage.
- the inert cooling gas of the first cooling stage had to be cooled again after leaving the cooling container; this could only be achieved in an indirect heat exchange process with correspondingly unfavorable efficiency.
- the circulating gas Due to the fact that the circulating gas also flows through the uppermost (hottest) layers (zones) of the coke bed, it must be an inert gas and free of steam in order to prevent coke burn-off by oxygen and (or) water gas.
- this method is not suitable for direct coupling with coal preheating, because the heated circulating gas cannot be used in, for example, an entrained flow device and, after the heat has been given off, can be returned to the coke oven cooling shaft together with the absorbed coal moisture.
- the object of the invention is to provide a method and a device of the type mentioned at the outset in which a direct coupling of the coke cooling gas circuit to a thermal treatment step in which water vapor is generated is possible without the coke to be cooled burning off much more than in the known dry coke cooling processes; At the same time, particularly effective coke dry cooling with a particularly high degree of efficiency should be made possible by avoiding separate cooling gas circuits.
- the coke cooling in the first cooling stage takes place essentially through heat radiation between the coke and the heat exchanger walls and to a small extent by heat conduction between the coke and the heat exchanger walls - that is, only indirectly; direct cooling by a cooling gas passed through the coke bed in direct contact is thus prevented.
- This ensures that only a single cooling gas circuit is required, complex re-cooling (heat use) can be omitted, and particularly effective steam generation is possible on the secondary side by means of the heat exchanger walls. Overall, an almost complete recovery of the sensible heat of the red-hot coke is achieved.
- the red-hot coke enters a cooling container 1 (cooling shaft) with an upstream antechamber 10 at a temperature of approximately 1050 to 1100 ° C. After leaving the antechamber 10, in which there is only a slight temperature loss, the coke enters the first cooling zone (cooling stage 1a) of the cooling container 1, in which the coke is cooled to a temperature of 800 to 850 ° C. solely by heat radiation and conduction.
- jacket cooling surfaces 8 and internal built-in cooling surfaces 9 which are supplied with feed water on the secondary side, which leaves the first cooling stage again as steam.
- the coke After passing through a constriction or coke lock 7, which can consist of a funnel and an optionally conical built-in component with an overhead tip (shown in dashed lines in the figure), the coke enters the second cooling zone (cooling stage 1b) of the cooling container 1. This cools the coke as far as possible - logically to temperatures of around 200o C.
- the second cooling zone is operated in countercurrent with approximately 150 ° C. hot steam-containing gases with a water vapor content of approximately 50 to 90% by volume, preferably from a coal drying and preheating system 11 known per se.
- cooling gases enter the cooling stage 1b directly above the coke extraction device 3 through a lower cooling gas feed device 5. You leave this through a central cooling gas discharge device 6 in the area or at the level of the constriction at about 600 ° C.
- the cooling gas flow is shown in the drawing with arrows.
- About 850 to 900 K of the total available temperature difference is used - of which about 200 to 250 K in the first cooling zone for steam generation, i. H . r and 25%.
- the 75% is transferred to the cooling system and is used for drying and pre-heating coal.
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Abstract
A process for dry coke cooling by means of a cooling gas in which the coke and cooling gas are fed in contra-flow through a two-stage cooling vessel, whereby the cooling in the first stage is effected at a coke temperature of about 800oC and the cooling gas fed through the second cooling stage contains steam; the steam is produced without substantial burning away of the coke owing to the fact that the cooling in the first cooling stage is exclusively by indirect heat exchange of the coke with a cooling medium through the walls of the heat exchanger, and the cooling in the second stage is exclusively by the cooling gas which contains the steam. For this, a two-stage cooling vessel (1) is used, whose first cooling stage (1a) has jacket surfaces and incorporated cooling surfaces (8, 9) and whose second cooling stage (1b) is fed with a high steam-containing cooling gas connected with a coal-drying and pre-heating installation (4).
Description
Verfahren und Vorrichtung zur trockenen Kokskühlung Process and device for dry coke cooling
Die Erfindung betrifft ein Verfahren zur trockenen Kokskühlung gemäß dem Oberbegriff von Patentanspruch 1 sowie eine Vorrichtung zum Durchführen dieses Verfahrens gemäß dem Oberbegriff von Patentanspruch 3.The invention relates to a method for dry coke cooling according to the preamble of patent claim 1 and a device for carrying out this method according to the preamble of patent claim 3.
Die trockene Kokskühlung ist ein seit vielen Jahrzehnten bekanntes Verfahren, demgemäß der aus dem Koksofen ausgestoßene, glühende Koks in einen Kühlschacht gefüllt wird, in dem er durch aufströmendes Inertgas abgekühlt wird. Folglich arbeitet ein derartiger Schachtkühler nach dem Prinzip eines bewegten Festbettes in Verbindung mit dem direkten Wärmeaustausch zwischen Feststoff und Gas im Gegenstrom. Als Kühlgase sind bis vor kurzem auss chließlich Inertgase empfohlen worden. Das den Kokskühler verlassende heiße Inertgas wurde gewöhnlich zur Dampferzeugung in einem Röhrenkessel genutzt.Dry coke cooling has been a process that has been known for many decades, according to which the glowing coke discharged from the coke oven is filled into a cooling shaft, in which it is cooled by the inflowing inert gas. Consequently, such a shaft cooler works on the principle of a moving fixed bed in connection with the direct heat exchange between solid and gas in countercurrent. Until recently, only inert gases have been recommended as cooling gases. The hot inert gas leaving the coke cooler was usually used to generate steam in a tubular boiler.
Ferner ging man bis vor kurzem davon aus, daß sich die Kokstrockenkühlung und die Trocknung und Vorerhitzung von Kokskohle nicht im direkten Wärmeaustausch zwischen der Kokskohle und dem Koks mit ein und demselben Kreislaufmedium betreiben läßt, weil die Brüden aus einer Trocknungs- und Vorerhitzungsanlage bei der Kokskühlung unerwünscht hohe Abbrandverluste aufgrund der Wassergasreaktion verursachen würden. All diesen Kokstrockenkühlungsverfahren haftete der Nachteil eines hohen baulichen Aufwandes und/oder eines schlechten Wärmeüberganges auf der Wärmeverbraucherseite an.Until recently, it was also assumed that the coke dry cooling and the drying and preheating of coking coal could not be carried out in direct heat exchange between the coking coal and the coke with one and the same circulating medium, because the vapors from a drying and preheating system for coking cooling would cause undesirably high burn-up losses due to the water gas reaction. All of these coke dry cooling processes had the disadvantage of high construction costs and / or poor heat transfer on the heat consumer side.
Das Problem, die fühlbare Wärme des Kühlgases direkt an einen Wärmeverbraucher abgeben zu können, ohne das der zu kühlen
de Koks dabei wesentlich mehr abbrennt, als bei den bekannten Kokstrockenkühlungsverfahren, ist mit einem gattungsgemäßen Verfahren und einer entsprechenden Vorrichtung der eingangs genannten Art gelöst und in der DE-OS 32 03 732 beschrieben worden. Bei diesem bekannten Verfahren erfolgte die Kokskühlung in den beiden Kühlstufen in voneinander getrennten Kühlgaskreisläufen im Gegenstrom zum Koks, wobei ausschließlich das Kühlgas der zweiten Stufe Wasserdampf enthielt, während das Kühlgas in der ersten Kühlstufe ein inertes Kühlgas war. Hieidurch wurde eine Beschränkung des Koksabbrandes auf 1 Gew.-% und weniger erreicht. Das Waserdampf enthaltende Kreislaufkühlgas der zweiten Kühlstufe konnte zur thermischen Vorbehandlung der Kokskohle verwendet werden, die im direkten Kontakt zwischen der Kokskohle und dem Kühlgas erfolgte, und als Wasserdampf enthaltendes Kühlgas konnten die bei der thermischen Vorbehandlung der Kokskohle anfallenden Brüden verwendet weiden. Bei diesem bekannten Verfahren tritt allerdings das Problem der Trennung beider KühIgaskreislaufe auf, welche den Einbau einer Koksschleuse in den Kühlbehälter zwischen die beiden Kühlstufen erforderlich macht; insbesondere war auf die Wasserdampffreiheit des inerten Kühlgases in der ersten Kühlstufe zu achten. Schließlich mußte das inerte Kühlgas der ersten Kühlstufe nach Verlassen des Kühlbehälters seinerseits wieder gekühlt werden; dies konnte nur in einem indirekten Wärmeaustauschverfahren mit entsprechend ungünstigem Wirkungsgrad erfoIgen.The problem of being able to deliver the sensible heat of the cooling gas directly to a heat consumer without cooling it de coke burns much more than in the known dry coke cooling process, has been solved with a generic method and a corresponding device of the type mentioned and has been described in DE-OS 32 03 732. In this known method, the coke cooling took place in the two cooling stages in separate cooling gas circuits in countercurrent to the coke, the cooling gas in the second stage containing only water vapor, while the cooling gas in the first cooling stage was an inert cooling gas. As a result, the coke burn-off was limited to 1% by weight and less. The cycle cooling gas containing water vapor of the second cooling stage could be used for the thermal pretreatment of the coking coal, which was carried out in direct contact between the coking coal and the cooling gas, and the vapors obtained during the thermal pretreatment of the coking coal could be used as the cooling gas containing water vapor. In this known method, however, there is the problem of separating the two cooling gas circuits, which makes it necessary to install a coke lock in the cooling container between the two cooling stages; particular attention was paid to the freedom from water vapor of the inert cooling gas in the first cooling stage. Finally, the inert cooling gas of the first cooling stage had to be cooled again after leaving the cooling container; this could only be achieved in an indirect heat exchange process with correspondingly unfavorable efficiency.
Bei einem anderen, aus der DE-PS 29 52 065 bekannten Kokstrockenkühlungsverfahren konnte eine fast vollständige Rückgewinnung der fühlbaren W ä r me des glühenden Kokses dadurch erreicht werden, daß in einem einstufigen Kühlbehälter ein inertes Kühlgas im Gegenstrom durch die gesamte Koksschüttung geführt wurde und zusätzlich wassergekühlte Mantelflächen und Einbauteile in dem Kühlbehälter verwendet wurden. Hierdurch konnte zwar ebenfalls ein Abbrennen des Kokses weitgehend vermieden und der im Kreislaufgas mitgeführte Staubanteil reduziert werden, jedoch ergab sich wiederum der Nachteil der relativ ungünsti
gen Wärmenutzung des inerten Kühlgas. Dieses Verfahren arbeitet also zwingend mit einem I n e r t g a s und in jedem Falle e i n s t u f i g. Die Aufteilung der Wärmeübertragung in einen direkt und in einen indirekt übertragenden Anteil ist mit der Konstruktion des Kühlschachtes festgelegt. Bedingt dadurch, daß das Umwälzgas auch durch die obersten (heißesten) Lagen (Zonen) der Koksschüttung strömt, muß es ein Inertgas und w a s s e r d a m p f f r e i sein, um einen Koksabbrand durch Sauerstoff und (oder) Wassergas reakti on zu verhindern. Mit dieser zwingenden Einschränkung eignet sich dieses Verfahren nicht zur direkten Kopplung mit der Kohlevorerhitzung, denn das erhitzte Umwälzgas kann nicht in beispielsweise einem Flugstromapparat verwendet und nach Wärmeabgabe zusammen mit der aufgenommenen Kohlenfeuchte wieder dem Kokstrockenkühlschacht zugeführt werd e n .In another coke dry cooling method known from DE-PS 29 52 065, an almost complete recovery of the sensible heat of the red-hot coke could be achieved by passing an inert cooling gas in counterflow through the entire coke bed in a single-stage cooling tank and additionally water-cooled jacket surfaces and built-in parts were used in the cooling tank. This also largely prevented the coke from burning off and reduced the amount of dust entrained in the cycle gas, but this again resulted in the disadvantage of being relatively unfavorable heat utilization of the inert cooling gas. This process therefore works with an inert gas and in each case in one stage. The design of the cooling shaft defines the division of the heat transfer into a direct and an indirect portion. Due to the fact that the circulating gas also flows through the uppermost (hottest) layers (zones) of the coke bed, it must be an inert gas and free of steam in order to prevent coke burn-off by oxygen and (or) water gas. With this mandatory limitation, this method is not suitable for direct coupling with coal preheating, because the heated circulating gas cannot be used in, for example, an entrained flow device and, after the heat has been given off, can be returned to the coke oven cooling shaft together with the absorbed coal moisture.
Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der eingangs genannten Art bereitzustellen, bei denen eine direkte Kopplung des Kokskühlgaskreislaufes mit einem thermischen Behandlungsschritt, bei dem Wasserdampf entsteht, möglich ist, ohne daß der zu kühlende Koks dabei wesentlich mehr abbrennt als bei den bekannten Kokstrockenkühlungsverfahren; gleichzeitig soll unter Vermeidung getrennter KühIgaskreislaufe eine besonders wirkungsvolle Kokstrockenkühlung mit besonders hohem Wirkungsgrad ermöglicht werden.Proceeding from this, the object of the invention is to provide a method and a device of the type mentioned at the outset in which a direct coupling of the coke cooling gas circuit to a thermal treatment step in which water vapor is generated is possible without the coke to be cooled burning off much more than in the known dry coke cooling processes; At the same time, particularly effective coke dry cooling with a particularly high degree of efficiency should be made possible by avoiding separate cooling gas circuits.
Als technische Lösung dieser Aufgabe werden ein Verfahren und eine Vorrichtung der eingangs genannten Art mit den kennzeichnenden Merkmalen der Ansprüche 1 und 3 vorgeschlagen.A method and a device of the type mentioned at the outset with the characterizing features of claims 1 and 3 are proposed as a technical solution to this problem.
Erfindungsgemäß erfolgt die Kokskühlung in der ersten Kühlstufe im wesentlichen durch Wärmestrahlung zwischen dem Koks
und den Wärmeaustauscherwänden und in geringem Maß durch Wärmeleitung zwischen dem Koks und den Wärmeaustauscherwänden - also ausschließlich indirekt; eine direkte Kühlung durch ein durch die Koksschüttung im direkten Kontakt geleitetes Kühlgas wird also unterbunden. Hierdurch wird erreicht, daß nur ein einziger KühIgaskreislauf erforderlich ist, eine aufwendige Rückkühlung (Wärmenutzung) unterbleiben kann und mittels der Wärmeaustauscherwände sekundärseitig eine besonders effektive Dampferzeugung möglich ist. Dabei wird insgesamt eine fast vollständige Rückgewinnung der fühlbaren Wärme des glühenden Kokses erreicht.According to the invention, the coke cooling in the first cooling stage takes place essentially through heat radiation between the coke and the heat exchanger walls and to a small extent by heat conduction between the coke and the heat exchanger walls - that is, only indirectly; direct cooling by a cooling gas passed through the coke bed in direct contact is thus prevented. This ensures that only a single cooling gas circuit is required, complex re-cooling (heat use) can be omitted, and particularly effective steam generation is possible on the secondary side by means of the heat exchanger walls. Overall, an almost complete recovery of the sensible heat of the red-hot coke is achieved.
Zweckmäßige Ausgestaltungen des Erfindungsgegenstandes, die insbesondere die Effektivität der Kühlung in der zweiten Kühlstufe und die Rückkühlung des Kreislaufkühlgases gewährleisten, sind in weiteren Ansprüchen enthalten.Expedient embodiments of the subject matter of the invention, which in particular ensure the effectiveness of the cooling in the second cooling stage and the recooling of the cycle cooling gas, are contained in further claims.
Die vorgenannten, erfindungsgemäß zu verwendenden Verfahrensschritte bzw. Bauteile unterliegen in ihrer Verfahrensführung sowie Größe, Formgestaltung, Materialauswahl und technischen Konzeption keinen besonderen Ausnahmebedingungen, so daß die in dem jeweiligen Anwendungsgebiet bekannten Auswahlkriterien uneingeschränkt Anwendung finden können.The aforementioned process steps or components to be used according to the invention are not subject to any special exceptional conditions in terms of their process management, size, shape, material selection and technical conception, so that the selection criteria known in the respective area of application can be used without restriction.
Weitere Einzelheiten, Merkmale und Vorteile des Gegenstandes der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der zugehörigen Zeichnung, in der eine bevorzugte Ausführungsform einer Kokstrockenkühlvorrichtung dargestellt worden ist. Die einzige Figur der Zeichnung zeigt eine Prinzipskizze einer erfindungsgemäßen Kühlvorrichtung.Further details, features and advantages of the subject matter of the invention will become apparent from the following description of an embodiment with reference to the accompanying drawing, in which a preferred embodiment of a coke oven cooling device has been shown. The only figure in the drawing shows a schematic diagram of a cooling device according to the invention.
Der glühende Koks tritt mit einer Temperatur von etwa 1050 bis 1100º C in einen Kühlbehälter 1 (Kühlschacht) mit vorgeschalteter Vorkammer 10 ein. Nach Verlassen der Vorkammer 10,
in der nur ein geringer Temperaturverlust eintritt, gelangt der Koks in die erste Kühlzone (Kühlstufe 1a) des Kühlbehälters 1, in der der Koks ausschließlich durch Wärmestrahlung und -leitung auf eine Temperatur von 800 bis 850º C abgekühlt wird. Hierzu dienen Mantelkühlflächen 8 und innere Einbaukühlflächen 9, die sekundärseitig mit Speisewasser beaufschlagt werden, das die erste Kühlstufe als Dampf wieder verläßt. Nach Passieren einer Einschnürung oder Koksschleuse 7, die aus einem Trichter und einem wahlweise darunter vorsehbaren kegeligen Einbauteil mit obenliegender Spitze (in der Figur gestrichelt eingezeichnet) bestehen kann, tritt der Koks in die zweite Kühlzone (Kühlstufe 1b) des Kühlbehälters 1 ein. In dieser wird eine Abkühlung des Kokses soweit als möglich - sinnvollerweise auf Temperaturen von rund 200º C - erreicht. Die zweite Kühlzone wird im Gegenstrom mit etwa 150º C heißen wasserdampfhaltigen Gasen mit einem Wasserdampfanteil von etwa 50 bis 90 Vol.-% vorzugsweise aus einer an sich bekannten Kohletrocknungs- und vorerhitzungsa/ilage 11 betrieben.The red-hot coke enters a cooling container 1 (cooling shaft) with an upstream antechamber 10 at a temperature of approximately 1050 to 1100 ° C. After leaving the antechamber 10, in which there is only a slight temperature loss, the coke enters the first cooling zone (cooling stage 1a) of the cooling container 1, in which the coke is cooled to a temperature of 800 to 850 ° C. solely by heat radiation and conduction. For this purpose, jacket cooling surfaces 8 and internal built-in cooling surfaces 9, which are supplied with feed water on the secondary side, which leaves the first cooling stage again as steam. After passing through a constriction or coke lock 7, which can consist of a funnel and an optionally conical built-in component with an overhead tip (shown in dashed lines in the figure), the coke enters the second cooling zone (cooling stage 1b) of the cooling container 1. This cools the coke as far as possible - logically to temperatures of around 200º C. The second cooling zone is operated in countercurrent with approximately 150 ° C. hot steam-containing gases with a water vapor content of approximately 50 to 90% by volume, preferably from a coal drying and preheating system 11 known per se.
Diese Kühlgase treten unmittelbar oberhalb der Koksabzugseinrichtung 3 durch eine untere Kühlgasaufgabeeinrichtung 5 in die Kühlstufe 1b ein. Sie verlassen diese durch eine mittlere Kühlgasabführeinrichtung 6 im Bereich bzw. auf der Höhe der Einschnürung mit etwa 600º C. Die Kühlgasströmung ist in der Zeichnung mit Pfeilen dargestellt. Von der gesamten zur Verfügung stehenden Temperaturdifferenz werden etwa 850 bis 900 K genutzt - davon etw 200 bis 250 K in der ersten Kühlzone zur Dampferzeu g u ng , d . h . r u nd 25 % . D i e üb r i g e n 75 % w e r d e n a n da s Kü h l g a s übertragen und dienen der Kohletrocknung und -vorerhi tzung.These cooling gases enter the cooling stage 1b directly above the coke extraction device 3 through a lower cooling gas feed device 5. You leave this through a central cooling gas discharge device 6 in the area or at the level of the constriction at about 600 ° C. The cooling gas flow is shown in the drawing with arrows. About 850 to 900 K of the total available temperature difference is used - of which about 200 to 250 K in the first cooling zone for steam generation, i. H . r and 25%. The 75% is transferred to the cooling system and is used for drying and pre-heating coal.
Mit 1kg Koks wird etwa eine Enthalpie von 1674 kJ in den Kühlschacht eingebracht. 1423 kJ stehen zur technischen Nutzung
zur Verfügung. 376 kJ werden zur Erzeugung von etwa 0,16 kg Dampf (ca. 20 bar) genutzt. 1047 kJ stehen zur Kohlevorerhitzung einschließlich trocknung zur Verfügung, die einen Bedarf von 544 bis 837 kJ/kg Kohle, entsprechend 724 bis 837 kJ/kg Koks hat. Somit, d.h. unter Einbeziehung der Verluste, kann eine ausgeglichene Wärmewirtschaft im Kopplungsbetrieb "Kokst rockenkühlung/2. Kühlzone" und Kohletrocknung/ -vorerhitzung erzielt werden.
With 1kg of coke, an enthalpy of 1674 kJ is introduced into the cooling shaft. 1423 kJ are for technical use to disposal. 376 kJ are used to generate about 0.16 kg of steam (approx. 20 bar). 1047 kJ are available for coal preheating including drying, which has a requirement of 544 to 837 kJ / kg coal, corresponding to 724 to 837 kJ / kg coke. Thus, including the losses, a balanced heat economy can be achieved in the coupling operation "coke rock cooling / 2nd cooling zone" and coal drying / preheating.
Claims
1. Verfahren zur trockenen Kokskühlung mittels Kühlgas, bei dem1. Process for dry coke cooling using cooling gas, in which
a) der Koks und das Kühlgas im Gegenstrom durch einen zweistufigen Kühlbehälter geleitet werden,a) the coke and the cooling gas are passed in countercurrent through a two-stage cooling tank,
b) die Kühlung in der ersten Kühlstufe auf Kokstemperaturen von etwa 800º C erfolgt undb) the cooling takes place in the first cooling stage to coke temperatures of approximately 800 ° C. and
c) das durch die zweite Kühlstufe geführte Kühlgas Wasserdampf enthält,c) the cooling gas passed through the second cooling stage contains water vapor,
dadurch gekennzeichnet, daßcharacterized in that
d) die Kühlung in der ersten Kühlstufe ausschließlich durch indirekten Wärmeaustausch des Kokses mit einem Kühlmedium über Wärmeaustauscherwände undd) the cooling in the first cooling stage exclusively by indirect heat exchange of the coke with a cooling medium via heat exchanger walls and
e) die Kühlung in der zweiten Kühlstufe ausschließlich durch das den Wasserdampf enthaltende Kühlgas erfolgt.e) the cooling in the second cooling stage is carried out exclusively by the cooling gas containing the water vapor.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das von dem Kühlbehälter abgeführte Kühlgas zur thermischen Vorbehandlung von Kokskohle im direkten Kontakt zwischen der Kokskohle und dem Kühlgas verwendet wird und daß das den Wasserdampf enthaltende Kühlgas für die zweite Kühlstufe die bei der thermischen Vorbehandlung der Kokskohle anfallenden Brüden sind. 2. The method according to claim 1, characterized in that the cooling gas discharged from the cooling container for thermal Pretreatment of coking coal is used in direct contact between the coking coal and the cooling gas and that the cooling gas containing the water vapor for the second cooling stage are the vapors obtained during the thermal pretreatment of the coking coal.
3. Vorrichtung zum Durchführen des Verfahrens nach Anspruch 1, bestehend aus einem zweistufigen Kühlbehälter (1), mit einer oberen Koksaufgabeeinrichtung (2), einer unteren Koksabzugseinrichtung (3), einer unteren Kühlgasaufgabeeinrichtung (5) und einer mitteleren Kühlgasabführeinrichtung (6) dadurch gekennzeichnet, daß die KühIgasabführeinrichtung (6) am oberen Ende der zweiten Kühlstufe des Kühlbehälters (1) angeordnet ist und die Wände der ersten Kühlstufe des Kühlbehälters (1) oberhalb der KühIgasabführeinrichtung (6) fluidgekühIte Wärmeaustauscherwände sind.3. Device for performing the method according to claim 1, consisting of a two-stage cooling container (1), with an upper coke feed device (2), a lower coke extraction device (3), a lower cooling gas feed device (5) and a medium cooling gas discharge device (6) characterized that the cooling gas discharge device (6) is arranged at the upper end of the second cooling stage of the cooling container (1) and the walls of the first cooling step of the cooling container (1) above the cooling gas discharge device (6) are fluid-cooled heat exchanger walls.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß eine Koksschleuse (7) zwischen der ersten und der zweiten Kühlstufe im Kühlbehälter (1) angeordnet ist. 4. The device according to claim 3, characterized in that a coke lock (7) between the first and the second cooling stage in the cooling container (1) is arranged.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8585905791T DE3574727D1 (en) | 1984-11-12 | 1985-10-19 | METHOD AND DEVICE FOR DRY COOKING. |
| AT85905791T ATE48631T1 (en) | 1984-11-12 | 1985-10-19 | METHOD AND DEVICE FOR DRY COKE COOLING. |
| JP60505088A JPH0629431B2 (en) | 1984-11-12 | 1985-10-19 | Dry coke cooling method and dry coke chiller |
| BR8507276A BR8507276A (en) | 1984-11-12 | 1985-10-19 | PROCESS AND DEVICE FOR DRY COKE REFRIGERATION |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3441322A DE3441322C1 (en) | 1984-11-12 | 1984-11-12 | Process and device for dry coke cooling |
| DEP3441322.7 | 1984-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1986002939A1 true WO1986002939A1 (en) | 1986-05-22 |
Family
ID=6250104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1985/000549 WO1986002939A1 (en) | 1984-11-12 | 1985-10-19 | Process and system for dry coke cooling |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0231192B1 (en) |
| JP (1) | JPH0629431B2 (en) |
| AU (1) | AU589927B2 (en) |
| BR (1) | BR8507276A (en) |
| CA (1) | CA1271156A (en) |
| DE (2) | DE3441322C1 (en) |
| ES (1) | ES8701214A1 (en) |
| WO (1) | WO1986002939A1 (en) |
| ZA (1) | ZA858666B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009094A1 (en) * | 1989-12-15 | 1991-06-27 | Still Otto Gmbh | Process and device for dry-cooling coke |
| DE102011115698A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for the dry cooling of coke with steam with subsequent use of the synthesis gas produced |
| DE102011115699A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for the dry cooling of coke with carbon dioxide with subsequent use of the carbon monoxide produced |
| WO2014000861A1 (en) | 2012-06-25 | 2014-01-03 | Thyssenkrupp Uhde Gmbh | Method and apparatus for the improved pre-heating of coal by means of heat exchange with the cooling gas from a coke drying and cooling system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT387977B (en) * | 1986-12-18 | 1989-04-10 | Waagner Biro Ag | METHOD FOR OBTAINING A GAS-EMISSING GAS AND DEVICE FOR CARRYING OUT THE METHOD |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE374702C (en) * | 1923-04-30 | Franz Boennemann Dr | Water-tube boiler for generating steam by extracting heat from highly heated solid goods | |
| DE2435500A1 (en) * | 1974-07-24 | 1976-02-12 | Hugo Dr Ing Schaefer | Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets |
| EP0071804A2 (en) * | 1981-08-01 | 1983-02-16 | Thyssen Industrie Ag | Process and apparatus for cooling bulky material |
| EP0085832A2 (en) * | 1982-02-04 | 1983-08-17 | Bergwerksverband GmbH | Process for the dry cooling of coke, and apparatus for carrying out the process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2952065C2 (en) * | 1979-12-22 | 1984-10-11 | Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Process for dry cooling of coke and coke cooling device for carrying out the process |
| AU544655B2 (en) * | 1980-02-15 | 1985-06-06 | Thompson Minwax Company, The | Aqueous alkali paint stripper |
| DE3203731C2 (en) * | 1982-02-04 | 1985-05-30 | Bergwerksverband Gmbh, 4300 Essen | Process for dry coke cooling and apparatus for carrying out this process |
| DE3309695C2 (en) * | 1982-07-29 | 1986-11-06 | Dr. C. Otto & Co Gmbh, 4630 Bochum | Chute cooler for dry extinguishing of coke |
-
1984
- 1984-11-12 DE DE3441322A patent/DE3441322C1/en not_active Expired
-
1985
- 1985-10-19 AU AU50960/85A patent/AU589927B2/en not_active Ceased
- 1985-10-19 JP JP60505088A patent/JPH0629431B2/en not_active Expired - Lifetime
- 1985-10-19 EP EP85905791A patent/EP0231192B1/en not_active Expired
- 1985-10-19 WO PCT/EP1985/000549 patent/WO1986002939A1/en active IP Right Grant
- 1985-10-19 BR BR8507276A patent/BR8507276A/en not_active IP Right Cessation
- 1985-10-19 DE DE8585905791T patent/DE3574727D1/en not_active Expired - Fee Related
- 1985-11-11 ES ES548736A patent/ES8701214A1/en not_active Expired
- 1985-11-12 ZA ZA858666A patent/ZA858666B/en unknown
- 1985-11-12 CA CA000494999A patent/CA1271156A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE374702C (en) * | 1923-04-30 | Franz Boennemann Dr | Water-tube boiler for generating steam by extracting heat from highly heated solid goods | |
| DE2435500A1 (en) * | 1974-07-24 | 1976-02-12 | Hugo Dr Ing Schaefer | Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets |
| EP0071804A2 (en) * | 1981-08-01 | 1983-02-16 | Thyssen Industrie Ag | Process and apparatus for cooling bulky material |
| EP0085832A2 (en) * | 1982-02-04 | 1983-08-17 | Bergwerksverband GmbH | Process for the dry cooling of coke, and apparatus for carrying out the process |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991009094A1 (en) * | 1989-12-15 | 1991-06-27 | Still Otto Gmbh | Process and device for dry-cooling coke |
| DE102011115698A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for the dry cooling of coke with steam with subsequent use of the synthesis gas produced |
| DE102011115699A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for the dry cooling of coke with carbon dioxide with subsequent use of the carbon monoxide produced |
| WO2013053426A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for dry cooling of coke with carbon dioxide with subsequent use of the carbon monoxide produced |
| WO2013053427A1 (en) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Process for dry cooling of coke with steam with subsequent use of the synthesis gas produced |
| WO2014000861A1 (en) | 2012-06-25 | 2014-01-03 | Thyssenkrupp Uhde Gmbh | Method and apparatus for the improved pre-heating of coal by means of heat exchange with the cooling gas from a coke drying and cooling system |
| DE102012012417A1 (en) | 2012-06-25 | 2014-04-24 | Thyssenkrupp Uhde Gmbh | Method and apparatus for improved preheating of coal by heat exchange with the cooling glass of a Kokstrockenkühlanlage |
| DE102012012417B4 (en) | 2012-06-25 | 2019-06-13 | Thyssenkrupp Industrial Solutions Ag | Method and apparatus for improved preheating of coal by heat exchange with the cooling gas of a Kokstrockenkühlanlage |
Also Published As
| Publication number | Publication date |
|---|---|
| AU589927B2 (en) | 1989-10-26 |
| ES548736A0 (en) | 1986-11-16 |
| JPS62501633A (en) | 1987-07-02 |
| DE3441322C1 (en) | 1986-05-28 |
| JPH0629431B2 (en) | 1994-04-20 |
| ZA858666B (en) | 1986-07-30 |
| ES8701214A1 (en) | 1986-11-16 |
| EP0231192B1 (en) | 1989-12-13 |
| AU5096085A (en) | 1986-06-03 |
| EP0231192A1 (en) | 1987-08-12 |
| DE3574727D1 (en) | 1990-01-18 |
| CA1271156A (en) | 1990-07-03 |
| BR8507276A (en) | 1987-10-27 |
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