EP0085832B1 - Procédé pour le refroidissement à sec de coke et dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé pour le refroidissement à sec de coke et dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0085832B1
EP0085832B1 EP83100159A EP83100159A EP0085832B1 EP 0085832 B1 EP0085832 B1 EP 0085832B1 EP 83100159 A EP83100159 A EP 83100159A EP 83100159 A EP83100159 A EP 83100159A EP 0085832 B1 EP0085832 B1 EP 0085832B1
Authority
EP
European Patent Office
Prior art keywords
cooling
coke
cooling vessel
gas
feed
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.)
Expired
Application number
EP83100159A
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German (de)
English (en)
Other versions
EP0085832A3 (en
EP0085832A2 (fr
Inventor
Karl Prof. Dr. Rer. Nat. Hedden
Horst Dr. Schumacher
Kurt-Günther Prof. Dr. Beck
Wolfgang Dr. Rohde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of EP0085832A2 publication Critical patent/EP0085832A2/fr
Publication of EP0085832A3 publication Critical patent/EP0085832A3/de
Application granted granted Critical
Publication of EP0085832B1 publication Critical patent/EP0085832B1/fr
Expired legal-status Critical Current

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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
    • C10B39/00—Cooling or quenching coke
    • C10B39/02—Dry cooling outside the oven
    • 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

Definitions

  • the invention relates to a method for dry coke cooling according to the preamble of claim 1 and an apparatus for performing this method.
  • Dry coke cooling has been a process that has been known for many decades, according to which the glowing coke expelled 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.
  • the hot inert gas is usually used to generate steam in a tubular boiler.
  • DE-A 30 00 808 discloses a method and a device for two-stage, dry countercurrent coke cooling: in the first cooling stage, the coke is cooled to temperatures above 750 ° C. by means of the raw coal degassing gas which is inherent in the coking process. A - necessarily expensive - inert gas is used to cool the second stage, which can subsequently be used for drying and preheating coking coal.
  • DE-A 28 53 299 discloses a method and a device for single-stage dry quenching of coke with an inert gas, in which, in order to achieve a constant temperature at the cooling gas outlet at the quenching chamber in the event of malfunctions, the sensible heat of the prechamber upstream of the quenching chamber quiescent coke is used in that the prechamber is flushed with the inert gas in cocurrent or countercurrent and the two cooling gas streams are then combined.
  • DE-A 24 15 758 it is possible according to DE-A 24 15 758 to condense the water vapor from the drying process from a cycle gas subsequently used for coke cooling in a method for drying and for preheating coking coal by means of the heat obtained in dry coke cooling in countercurrent to the coke.
  • This process is complex and requires two condensation stages.
  • the water vapor contained in the cooling gas is hardly noticeable with regard to the burning of the coke, since only the cooling gas of the second stage contains water vapor, while the first stage z. B. is operated with inert gas d. H. the temperature range, which is particularly sensitive to the water gas reaction, is only passed through in the first stage and without water vapor in the cooling gas.
  • the cooling in the first stage is generally hardly operated below 700 ° C. in order to be able to use cooling gases containing water vapor to the greatest extent possible in the second stage. Typical burns are about 1% of fresh coke compared to about 0.5% when dry countercurrent cooling with inert gas.
  • the type, quantity and temperature there are no particular limits to the cooling gases, except for the fact that the first cooling stage contains practically no water vapor-containing and / or similarly harmful gas components which promote the burning of coke.
  • the use according to the invention of the cooling gas discharged from the cooling container is particularly advantageous for the thermal pretreatment of coking coal in direct contact, that is, above all for drying and preheating coking coal; this achieves the thermally most favorable temperature coupling of the two methods.
  • cooling gas - above all from the first cooling stage - can also be used beyond the thermal pretreatment of the coking coal and of course independently of it for other purposes of providing energy.
  • the cooling gases can have different temperatures and / or gas compositions.
  • the coke lock can be realized by a constriction or special baffles within the cooling container, so that the coke can pass through it without too much hindrance, in particular no moving parts are necessary for this.
  • a slight mixing of the two cooling gas circuits in the area of the interface will generally not be particularly harmful, especially since, if necessary, the water vapor that may undesirably enter the first cooling stage can be condensed out before it is used again as cooling gas.
  • the coke lock can be designed according to the features of claims 5 and / or 6; Here, moving parts are avoided and the coke travels through such a lock, which is always open, without being mechanically loaded excessively, continuously and without the risk of blockages. - By placing the two types of built-in parts one above the other, the gas buffer space automatically prevents mixing of the two cooling gas systems; it does not matter which of the two installation parts is the upper or lower one.
  • the separation of the cooling gas circuits at the lock can be done according to the invention in that the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-in parts in the manner claimed.
  • the inlet openings of the gas discharge and supply devices are assigned to the built-
  • the truncated cone For the downward-facing, truncated cone-shaped installation part, openings above or below the outer edge of the installation part are recommended, in each case on the cooling container, on which an annular gas collecting line can be provided for this purpose (the truncated cone can also be designed as a hollow truncated cone).
  • both installation parts together form the coke lock, they are preferably used as a hollow cone or truncated cone, in which - with respect to the cooling container - the openings for the lower cooling circuit are provided on the undersides and the openings for the upper cooling circuit are provided on the upper sides.
  • the internals can be double-walled or triple-walled, in order to realize area-wide openings and to be able to conduct the gases which are collected in the spaces thus located within the internals separately.
  • a flushing gas device for the coke lock improves its gaseous buffering effect;
  • one or more gas inlet or gas outlet openings for purge gas which can optionally be circulated, are provided in the area of the coke lock.
  • openings as described in connection with the built-in parts are also suitable for this.
  • the purge gas is not only passed across the coke stream through the coke lock, but also in or against the direction of the coke stream, for. B. between the opposite surfaces of the above-described installation parts.
  • Fig. 1, 1 denotes a cooling container, with any upper coke feed device 2 and any lower coke extraction device 3 as well as an upper cooling gas discharge device 4 and a lower cooling gas discharge device 5 and at least one middle cooling gas discharge or feeding device 6 (the latter do not necessarily have to in the middle of the vertical cooling container expansion, but e.g. at the point where the temperature of the cooling gas supplied from above or below is the same).
  • the cooling gas discharge or feed device 6 can, for. B. a ring line with several openings to the container wall.
  • the cooling container 1 has any cross-section and is traversed by the coke from top to bottom; the upper cooling zone is designated by 1a, the lower cooling zone by 1 b and the zone in the area of the cooling gas discharge or feed device is designated by 1c.
  • the coke feed device 2 is designed as a simple downpipe; the same applies to the coke extraction device 3 as well as for the upper and lower cooling gas supply and removal devices 4 and 5.
  • the cooling gas removal and supply device 6 comprises the pipes 6a and 6b with openings 6c and 6d.
  • a coke lock 7 comprises an upwardly directed, conical shaped part 10 fastened with a space 8 to the inner wall 9 of the cooling container 1 as well as a downwardly directed, frustoconical part 11 with a central opening 12 attached to the inner wall 9.
  • the opening 6c is in the middle of the hollow-conical installation part 10 for the upward cooling gas flow of zone 1b; it is also possible to provide a plurality of openings 6c on the lower inside of the built-in part 10 for a comprehensive cooling gas outflow or inflow, as indicated in FIG. 2.
  • the openings 6d are located on the outer edge 11a of the installation part 11, preferably in the cooling container wall.
  • the gas discharge or feed device is arranged as a ring line around the cooling container 1.
  • An area-wide cooling gas discharge or supply line is also possible - corresponding to that mentioned for the built-in part 10 - also in the manner of FIG.
  • a purge gas device 12 with a feed line 12a and a discharge line 12b in the area of the coke lock 7 can, according to FIG. B. operated in cross flow. However, it is also possible to carry out a flushing gas supply and disposal over the built-in parts 10 and 11.
  • Fig. 2 shows how a comprehensive gas supply or disposal can be realized on the built-in parts.
  • such a gas supply or disposal device can also be provided only on the top or bottom of the installation part. Accordingly, one of the two perforated areas is missing (as not shown in FIG. 2).
  • openings for the gas supply or disposal should be designed according to their size, shape and possibly also orientation so that no coke particles can penetrate into them or lay them.
  • the built-in parts - as not shown in FIG. 1 - do not necessarily have to be designed as a hollow cone or a hollow truncated cone and that they can be arranged in different numbers and / or in succession in the cooling container 1.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)

Claims (9)

1.- Procédé pour le refroidissement de coke à sec, dans lequel on conduit le coke et des gaz refroidissants séparés les uns des autres à contrecourant à travers un récipient de refroidissement à deux étages, le refroidissement ayant lieu dans le premier étage aux températures du coke inférieures à environ 800° C, caractérisé en ce qu'exclusivement le gaz refroidissant du deuxième étage contient de la vapeur d'eau.
2.- Procédé suivant la revendication 1, caractérisé en ce qu'on emploie le gaz refroidissant éliminé du récipient de refroidissement pour le pré-traitement thermique du charbon à coke pour contact direct.
3.- Procédé suivant la revendication 1 ou la revendication 2, caractérisé en ce que, comme gaz refroidissant contenant de la vapeur d'eau, on emploie les vapeurs chaudes émises pendant le pré-traitement thermique du charbon à coke.
4.- Dispositif pour la mise en oeuvre du procédé suivant la revendication 1, consistant en un récipient de refroidissement (1) à deux étages avec un dispositif d'apport de coke, supérieur, (2), et un dispositif de retrait de coke, inférieur, (3), chaque fois un dispositif d'amenée, respectivement de départ (5, resp. 4) de gaz refroidissant aux extrémités respectives du récipient de refroidissement (1), et au moins un dispositif (6) central d'amenée, respectivement de départ, de gaz refroidissant pour les zones (étages) superposées (1a, 1b) du récipient de refroidissement (1), un sas à coke (7) étant disposé dans une zone (1a) des dispositifs d'amenée, respectivement de départ (6a, 6b) du gaz refroidissant, entre la zone supérieure (1a) et une zone inférieure (1 b) du récipient de refroidissement (1), caractérisé en ce qu'il comporte un dispositif de rinçage par gaz (12a, b) pour le sas à coke (7).
5.- Dispositif pour la mise en oeuvre du procédé suivant la revendication 1, consistant en un récipient de refroidissement (1) à deux étages avec un dispositif d'apport de coke, supérieur, (2), et un dispositif de retrait de coke, inférieur, (3), chaque fois un dispositif d'amenée, respectivement de départ (5,4) de gaz refroidissant aux extrémités respectives du récipient de refroidissement (1) et au moins un dispositif (6) central d'amenée, respectivement de départ, de gaz refroidissant pour les zones (étages) superposées (1a, 1 b) du récipient de refroidissement (1), un sas à coke (7) étant disposé dans une zone (1c) des dispositifs d'amenée, respectivement de départ (6a, 6b) du gaz refroidissant, entre la zone supérieure (la) et la zone inférieure (1b) du récipient de refroidissement (1), caractérisé en ce que le sas à coke (7) est formé au moins partiellement d'une partie constructive incorporée (10) en forme de cône, dirigée vers le haut et disposée dans le récipient de refroidissement (1) avec un espace intermédiaire (8) entre cette partie et la paroi intérieure (9) du récipient de refroidissement (1).
6.- Dispositif pour la mise en oeuvre du procédé suivant la revendication (1), consistant en un récipient de refroidissement (1) à deux étages avec un dispositif d'apport de coke, supérieur, (2), et un dispositif de retrait de coke, inférieur, (3), chaque fois un dispositif d'amenée, respectivement de départ (5, resp. 4) de gaz refroidissant aux extrémités respectives du récipient de refroidissement (1), et au moins un dispositif (6) central d'amenée, respectivement de départ, de gaz refroidissant, pour les zones (étages) superposées (1a, 1b) du récipient de refroidissement (1), un sas à coke (7) étant disposé dans une zone (1 c) des dispositifs d'amenée, respectivement de départ (6a, 6b) du gaz refroidissant, entre la zone supérieure (1a) et une zone inférieure (1b) du récipient de refroidissement (1), caractérisé en ce que le sas à coke (7) est formé, au moins partiellement, d'une partie constructive incorporée (11) en forme de cône dirigée vers le bas et adaptée à la paroi intérieure (9) du récipient de refroidissement (1), avec une ouverture centrale (12).
7.- Dispositif suivant la revendication 5, caractérisé en ce qu'au moins une ouverture (6c) du dispositif (6) de départ, respectivement d'amenée de gaz, est agencée sur la partie constructive incorporée (10).
8.- Dispositif suivant la revendication 6, caractérisé en ce qu'au moins une ouverture (6d) du dispositif (6) de départ, respectivement d'amenée de gaz est agencée au bord extérieur (11 a) de la partie constructive incorporée (11).
9.- Dispositif suivant une ou plusieurs des revendications 5 à 8, caractérisé par un dispositif de rinçage par le gaz (12a, b) pour le sas à coke (7).
EP83100159A 1982-02-04 1983-01-11 Procédé pour le refroidissement à sec de coke et dispositif pour la mise en oeuvre du procédé Expired EP0085832B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203732 1982-02-04
DE3203732A DE3203732C2 (de) 1982-02-04 1982-02-04 Verfahren zur trockenen Kokskühlung und Vorrichtung zum Durchführen dieses Verfahrens

Publications (3)

Publication Number Publication Date
EP0085832A2 EP0085832A2 (fr) 1983-08-17
EP0085832A3 EP0085832A3 (en) 1985-01-23
EP0085832B1 true EP0085832B1 (fr) 1987-05-20

Family

ID=6154750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100159A Expired EP0085832B1 (fr) 1982-02-04 1983-01-11 Procédé pour le refroidissement à sec de coke et dispositif pour la mise en oeuvre du procédé

Country Status (7)

Country Link
EP (1) EP0085832B1 (fr)
JP (1) JPS58145781A (fr)
AU (1) AU557676B2 (fr)
BR (1) BR8300539A (fr)
DE (2) DE3203732C2 (fr)
ES (1) ES8400765A1 (fr)
ZA (1) ZA83717B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203731C2 (de) * 1982-02-04 1985-05-30 Bergwerksverband Gmbh, 4300 Essen Verfahren zur trockenen Kokskühlung und Vorrichtung zum Durchführen dieses Verfahrens
DE3441322C1 (de) * 1984-11-12 1986-05-28 Bergwerksverband Gmbh, 4300 Essen Verfahren und Vorrichtung zur trockenen Kokskuehlung
DE3630230A1 (de) * 1986-09-05 1988-03-17 Audi Ag Hydraulisches spielausgleichselement
AT387977B (de) * 1986-12-18 1989-04-10 Waagner Biro Ag Verfahren zur gewinnung eines ausgasendem brenngases und einrichtung zur durchfuehrung des verfahrens
CN102003869B (zh) * 2010-11-17 2014-02-12 河南省德耀机械制造有限公司 一种立式双筒烘干机

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE446042C (de) * 1922-11-19 1927-06-21 Kohlenveredlung Akt Ges Verfahren zum Trocknen feuchten Guts mittels der aus dem Gut austretenden, in einen Zusatztrockner geleiteten Schwaden
DE435572C (de) * 1923-01-18 1928-06-06 Bamag Meguin Akt Ges Trockenkuehlung von Koks
FR823374A (fr) * 1936-07-04 1938-01-19 Metallgesellschaft Ag Procédé pour distiller des combustibles à basse température et refroidir au moyen de gaz de balayage le coke formé
JPS4833601A (fr) * 1971-09-02 1973-05-11
DE2415758A1 (de) * 1974-04-01 1976-02-26 Buettner Schilde Haas Ag Anlage zur kohletrocknung und vorerhitzung
JPS5237903A (en) * 1975-09-20 1977-03-24 Nippon Kokan Kk <Nkk> Apparatus for blowing cooling gas into the quenching chamber of a coke dry quenching plant
SU802354A1 (ru) * 1977-03-01 1981-02-07 Украинский Научно-Исследовательскийуглехимический Институт Способ сухого тушени кокса и получени гАзОВ, СОдЕРжАщиХ ВОдОРОд и ОКиСьуглЕРОдА, и уСТРОйСТВО дл ЕгООСущЕСТВлЕНи
DE2738442B2 (de) * 1977-08-26 1979-10-18 Didier Engineering Gmbh, 4300 Essen Verfahren bzw. Anlage zur Nutzung der fühlbaren Kokswärme in einer Verkokungsanlage
DE2853299C3 (de) * 1978-12-09 1981-12-24 Dr. C. Otto & Comp. Gmbh, 4630 Bochum Betriebsverfahren für eine Vertikalkammer zum kontinuierlichen Trockenlöschen von Koks
DE2856141C2 (de) * 1978-12-27 1982-02-11 Didier Engineering Gmbh, 4300 Essen Einrichtung zur trockenen Kokskühlung
DE3000808C2 (de) * 1980-01-11 1987-08-20 Didier Engineering Gmbh, 4300 Essen Verfahren zur Nutzung der fühlbaren Kokswärme an einer Verkokungsanlage sowie Anlage zur Durchführung eines solchen Verfahrens
DE3004502A1 (de) * 1980-02-07 1981-08-13 Krupp-Koppers Gmbh, 4300 Essen Kuehler fuer die koks-trockenkuehlung
DE3203731C2 (de) * 1982-02-04 1985-05-30 Bergwerksverband Gmbh, 4300 Essen Verfahren zur trockenen Kokskühlung und Vorrichtung zum Durchführen dieses Verfahrens

Also Published As

Publication number Publication date
BR8300539A (pt) 1983-11-08
DE3203732C2 (de) 1985-06-20
ZA83717B (en) 1983-11-30
ES519498A0 (es) 1983-12-01
DE3203732A1 (de) 1983-08-18
JPS58145781A (ja) 1983-08-30
DE3371644D1 (en) 1987-06-25
AU1115183A (en) 1983-08-11
EP0085832A3 (en) 1985-01-23
ES8400765A1 (es) 1983-12-01
EP0085832A2 (fr) 1983-08-17
AU557676B2 (en) 1987-01-08

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