DE2435500A1 - Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets - Google Patents
Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jacketsInfo
- Publication number
- DE2435500A1 DE2435500A1 DE2435500A DE2435500A DE2435500A1 DE 2435500 A1 DE2435500 A1 DE 2435500A1 DE 2435500 A DE2435500 A DE 2435500A DE 2435500 A DE2435500 A DE 2435500A DE 2435500 A1 DE2435500 A1 DE 2435500A1
- Authority
- DE
- Germany
- Prior art keywords
- coke
- steam
- antechamber
- waste heat
- chamber
- 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.)
- Pending
Links
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
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Coke Industry (AREA)
Abstract
Description
" Verfahen zur Vorerhitzung von Kokskohle unter Benutzung von überhitztem Abhitzedampf, der in einer Trockenkokskühlanlage in besonderer Weise erzeugt wird." Es ist seit vielen Jahren bekannt, dass in Kokereien erzeugter Koks nicht mit Wasser gelöscht zu werden braucht, wie das in den weitaus meisten Fällen geschieht, vielmehr kann der Koks!auch trocken gekühlt werden. ltierzu wird gewöhnlich ein Inertgas benutzt, welches dadurch entsteht, dass Luft umgewälzt wird, deren Sauerstoff bei der Kühlung des Kokses schnell verbraucht wird, sodass theoretisch Stickstoff übrig bleibt. "Method of preheating coking coal using superheated Waste heat steam that is generated in a special way in a dry coke cooling system. " It has been known for many years that coke produced in coking plants does not mix with water Rather, it needs to be deleted, as is done in the vast majority of cases the coke! can also be cooled dry. An inert gas is usually used used, which is created by the fact that air is circulated, its oxygen at cooling the coke is quickly consumed, leaving theoretically nitrogen remain.
In der Praxis hat sich gezeigt, dass der Koks durch die Koks kühlung eine Nachentgasung erfährt, die dazu führt, dass das Inertumwälzgas mit Kohlenoxyd und Wasserstoff beladen wird.In practice it has been shown that the coke cools the coke undergoes a post-degassing, which leads to the inert circulation gas with carbon oxide and hydrogen is charged.
Durch Undichtheiten tritt gewöhnlich auch Luft in den Gaskreislauf ein, sodass auch noch Sauerstoff vorhanden ist. Dieser Sauerstoff verbrennt einen Teil des heissen Kokses, und zwar um so mehr, je höher die Kokstemperatur ist. Die bei der Verbrennung gebildete Kohlensäure wird zu Kohlenoxyd reduziert, und zwar um so stärker, je höher die Kokstemperatur und je länger die Berührzeit zwischen Koks und Sauerstoff ist.Air usually also enters the gas cycle through leaks so that there is still oxygen. This oxygen burns you Part of the hot coke, and the more the higher the coke temperature is. the Carbonic acid formed during combustion is reduced to carbon dioxide, namely the stronger the higher the coke temperature and the longer the contact time between Is coke and oxygen.
Als Vorbemerkung sei weiterhin erwähnt, dass Ausführungsformen in zweierlei Gestalt für Kokskühlkammern in Betrieb sind; solche mit einer Vorkammer, in welcher Koks gesammelt, jedoch noch nicht gekühlt wird, und solche ohne Vorkammer. In allen Fällen sind die Kokskühlkammern sowie die Vorkammern mit feuerfesten Steinen ausgemauert. In der Vorkammer hält sich der Koks in gleitender Bewegung ca. 2 Stunden auf, wodurch erhebliche Wärmeverluste an die die Vorkammer umgebende Luft und ein besonders starker Verschleiss der feuerfest gemauerten Kammerwände entstehen.As a preliminary remark, it should also be mentioned that embodiments in two types of coke cooling chambers are in operation; those with an antechamber, in which coke is collected but not yet cooled, and those without an antechamber. In all cases, the coke cooling chambers and the antechambers are made of refractory bricks bricked up. The coke stays in the antechamber in sliding motion for about 2 hours on, causing significant heat losses to the air surrounding the antechamber and a Particularly heavy wear and tear on the fireproof brick chamber walls occurs.
Gegenstand der Erfindung ist es, - anstatt einer Vorkammer mit feuerfest ausgemauerten Wänden - einen Dampferzeuger vorzusehen, durch welchen der heisse Koks, von der Koksofenbatterie mit ca. 1000 ° C herkommend, in die eigentliche Kokskühlkammer geleitet wird.The subject of the invention is - instead of an antechamber with refractory bricked walls - to provide a steam generator through which the hot Coke, coming from the coke oven battery with approx. 1000 ° C, into the actual coke cooling chamber is directed.
werden, um die Temperatur des durch den bberhitzer geleiteten Dampfes auf eine bestimmte gleichbleibende Temperatur entsprechend den Anforderungen der Kohlevorerhitzung in gewünschter Höhe, z. B. 450 C einzustellen.to be the temperature of the steam passing through the superheater to a certain constant temperature according to the requirements of the Coal preheating at the desired level, e.g. B. 450 C.
Patentansprüche: 1. Ausbildung des Eintragsteiles von Kokskühlkammern als Dampfkessel, in welchem der Koks auf seinem höchsten Temperatur-niveau einen Teil seiner Wärme an die Wände eines Dampfmantels abgibt.Claims: 1. Formation of the entry part of coke cooling chambers as a steam boiler in which the coke is at its highest temperature level Releases part of its heat to the walls of a steam jacket.
2. Ausbildung des Eintragsteiles für eine Kokskühlkammer ganz oder teilweise als Dampfüberhitzer.2. Formation of the entry part for a coke cooling chamber entirely or partly as steam superheater.
3. Ausbildung der Umfassungswande der eigentlichen hoks}cühlkammer9 in welcher der Inertgaskreislauf stattfindet, ganz oder teilweise als Dampfkessel 4. Benutzung des in der Einrichtung nach den Patentansprüchen 1 - 3 erzeugten Dampfes zur Kohlevorerhitzung.3. Formation of the surrounding walls of the actual hoks} cooling chamber9 in which the inert gas cycle takes place, wholly or partially as a steam boiler 4. Use of the steam generated in the device according to claims 1-3 for coal preheating.
5. Regelung ufld Konstanthaltung der Temperatur des überhitzten Dampfes für die Kohlevorerhitzung durch Zugabe von entspanntem und dadurch überhitztem Dampf aus dem Grossdampfkessel.5. Control afld keeping the temperature of the superheated steam constant for coal preheating by adding relaxed and therefore superheated steam from the large steam boiler.
Dieses Verfahren hat folgende Vorteile: 1. Die wärme des ca. 1000 Grad C heissen kokses strahlt nicht störend in die Umgebung durch die ausgemauerten Wände ab, sondern wird dem Verfahren dadurch zugeführt, dass in dem den Koks umgebenden Dampfmantel Dampf erzeugt wird. Der Dampfmantel kann ganz oder teilweise auch als J)ampfüberhitzer ausgebildet und betrieben werden.This process has the following advantages: 1. The heat of the approx Degree C hot coke does not radiate into the environment through the brickwork Walls from, but is fed to the process in that in the surrounding the coke Steam jacket steam is generated. The steam jacket can also be used in whole or in part J) amp superheaters are trained and operated.
2. Das teure feuerfeste Mauerwerk, welches einen erheblichen Verschleiss, Ersatzbedarf und Betriebsausfälle durch den herabgleitenden 1000-grädigen Koks hervorruft, wird nicht mehr benötigt.2. The expensive refractory masonry, which is subject to considerable wear, Causes the need for replacement and operational downtimes due to the sliding 1000-degree coke, is not needed anymore.
3. Die eigentliche Ivokskühlkammer, in welcher der Iiiertgaskreis lauf stattfindet, erhält einen etwas vorgekühlten toks, sodass die Bildung von Kohlenoxyd verringert wird und daher die Explosionsgefqhr sich vermindert. Ausserdem wird die erbrennung von Anteilen des glühenden Kokses verringert.3. The actual cooling chamber in which the Iiiertgaskreis run takes place, receives a slightly pre-cooled toks, so that the formation of carbon oxide and therefore the risk of explosion is reduced. In addition, the Burning of parts of the glowing coke is reduced.
In ähnlicher Weise kann auch die eigentliche Kokskühlkammer anstatt mit feuerfesten Steinen ausgemauert zu werden, einen Dampfmantel über die gesamte oder einen Teil der Höhe der Kolcslcühlkammer erhalten. Es ergeben sich die gleichen Vorteile wie vorstehend für den Oberteil beschrieben.In a similar way, the actual coke cooling chamber can also be used instead to be lined with refractory bricks, a steam jacket over the whole or part of the height of the Kolcslcühlkammer received. The same result Advantages as described above for the upper part.
Der in dem Dampfmantel erzeugte Dampf kann überhitzt werden und einer Kohlevorerhitzungsanlage direkt zugeführt werden. Er kann auch in einem, besonderen Grossdampfkessel eingespeist werden6 in welchem er durch den Inertgasstrom auf ein höheres Druck-und Temperaturniveau gehoben werden kann. Druck und Temperatur können je nach dem Verwendungszweck für den Dampf vorgesehen werden.The steam generated in the steam jacket can be superheated and one Coal preheating system can be fed directly. He can also be in a special one Large steam boiler are fed6 in which it is opened by the flow of inert gas higher pressure and temperature levels can be raised. Pressure and temperature can be provided depending on the intended use for the steam.
Besonders interessant ist die Verwendung des Dampfes zur VorT erhitzung von Kokskohle auf Temperaturen zwischen ca. 150 -25o C. In diesem Falle ist ein hoher Druck des Dampfes nicht erforderlich. Es genügen normalerweise Drucke bis ca. 2,o atü.The use of steam for preheating is particularly interesting of coking coal to temperatures between approx. 150 -25o C. In this case a high steam pressure not required. Usually prints up to are sufficient approx. 2, o atü.
Der Dampf für die Kohlevorerhitzung wird in einem dem Grossdampfkessel im Inertgaskreislauf vorgeschalteten überhitzer auf die erforderliche Temperatur von ca. 300 - 500° C überhitzt.The steam for the coal preheating is in a large steam boiler upstream superheater in the inert gas circuit to the required temperature overheated by approx. 300 - 500 ° C.
Um die Temperatur des Dampfes für die Kohlevorerhitzung konstant zu halten, kann vorteilhaft der Grossdampfkessel als Rauchrohrkessel mit einem grossen Wasservolumen ausgebildet werde, sodass auch bei schwankenden Temperaturen des Umwälzgases der Druck und die Temperatur des erzeugten Sattdampfes konstant bleiben.To keep the temperature of the steam for the coal preheating constant hold, the large steam boiler can advantageously be used as a smoke tube boiler with a large Water volume will be formed, so that even with fluctuating temperatures of the circulating gas the pressure and the temperature of the generated saturated steam remain constant.
Der im Grossdampfkessel erzeugte Dampf kann entspannt werden, wodurch er sich auf eine bestimmte Temperatur überhitzt, z. B.The steam generated in the large steam boiler can be relaxed, whereby it overheats to a certain temperature, e.g. B.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2435500A DE2435500A1 (en) | 1974-07-24 | 1974-07-24 | Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2435500A DE2435500A1 (en) | 1974-07-24 | 1974-07-24 | Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2435500A1 true DE2435500A1 (en) | 1976-02-12 |
Family
ID=5921335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE2435500A Pending DE2435500A1 (en) | 1974-07-24 | 1974-07-24 | Coking coal preheating system - using waste heat from dry coke quenching antechamber and chamber with steam jackets |
Country Status (1)
Country | Link |
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DE (1) | DE2435500A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2810694A1 (en) * | 1978-03-11 | 1979-09-20 | Schaper August | Prepn. of low-grade fine coal particles for coking - by drying with a hot oxygen-free gas |
DE2949720A1 (en) * | 1979-12-11 | 1981-06-19 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR DRYING AND HEATING DAMP COAL |
US4288294A (en) * | 1978-12-23 | 1981-09-08 | Velling Guenter | Method for the cooling of solid residues of gasification |
DE3033461A1 (en) * | 1980-09-05 | 1982-03-25 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR DRYING OR DRYING PREHEATING CHARCOAL OR CHARCOAL MIXTURES AND FOLLOWING COOKING USING NOT OR ONLY LOW-BAKING CHARCOALS AND / OR CARBON CARRIERS |
EP0071804A2 (en) * | 1981-08-01 | 1983-02-16 | Thyssen Industrie Ag | Process and apparatus for cooling bulky material |
WO1986002939A1 (en) * | 1984-11-12 | 1986-05-22 | Bergwerksverband Gmbh | Process and system for dry coke cooling |
WO1986005507A1 (en) * | 1985-03-23 | 1986-09-25 | Bergwerksverband Gmbh | Process and apparatus for the cooling of coke |
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 |
-
1974
- 1974-07-24 DE DE2435500A patent/DE2435500A1/en active Pending
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2810694A1 (en) * | 1978-03-11 | 1979-09-20 | Schaper August | Prepn. of low-grade fine coal particles for coking - by drying with a hot oxygen-free gas |
US4288294A (en) * | 1978-12-23 | 1981-09-08 | Velling Guenter | Method for the cooling of solid residues of gasification |
DE2949720A1 (en) * | 1979-12-11 | 1981-06-19 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR DRYING AND HEATING DAMP COAL |
DE3033461A1 (en) * | 1980-09-05 | 1982-03-25 | Alfelder Eisenwerke Carl Heise, KG vorm. Otto Wesselmann & Cie., 3220 Alfeld | METHOD AND DEVICE FOR DRYING OR DRYING PREHEATING CHARCOAL OR CHARCOAL MIXTURES AND FOLLOWING COOKING USING NOT OR ONLY LOW-BAKING CHARCOALS AND / OR CARBON CARRIERS |
US4474138A (en) * | 1981-08-01 | 1984-10-02 | Thyssen Industrie Ag | Method and apparatus for cooling hot bulk material |
EP0071804A3 (en) * | 1981-08-01 | 1983-04-27 | Thyssen Industrie Ag | Process and apparatus for cooling bulky material |
EP0071804A2 (en) * | 1981-08-01 | 1983-02-16 | Thyssen Industrie Ag | Process and apparatus for cooling bulky material |
WO1986002939A1 (en) * | 1984-11-12 | 1986-05-22 | Bergwerksverband Gmbh | Process and system for dry coke cooling |
WO1986005507A1 (en) * | 1985-03-23 | 1986-09-25 | Bergwerksverband Gmbh | Process and apparatus for the cooling of coke |
US4743342A (en) * | 1985-03-23 | 1988-05-10 | Bergwerksverband Gmbh | Coke quenching apparatus |
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 |
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 |
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