EP0231192A1 - Verfahren und vorrichtung zur trockenen kokskühlung. - Google Patents
Verfahren und vorrichtung zur trockenen kokskühlung.Info
- Publication number
- EP0231192A1 EP0231192A1 EP85905791A EP85905791A EP0231192A1 EP 0231192 A1 EP0231192 A1 EP 0231192A1 EP 85905791 A EP85905791 A EP 85905791A EP 85905791 A EP85905791 A EP 85905791A EP 0231192 A1 EP0231192 A1 EP 0231192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- coke
- stage
- gas
- cooling gas
- 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
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
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.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85905791T ATE48631T1 (de) | 1984-11-12 | 1985-10-19 | Verfahren und vorrichtung zur trockenen kokskuehlung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3441322 | 1984-11-12 | ||
DE3441322A DE3441322C1 (de) | 1984-11-12 | 1984-11-12 | Verfahren und Vorrichtung zur trockenen Kokskuehlung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0231192A1 true EP0231192A1 (de) | 1987-08-12 |
EP0231192B1 EP0231192B1 (de) | 1989-12-13 |
Family
ID=6250104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85905791A Expired EP0231192B1 (de) | 1984-11-12 | 1985-10-19 | Verfahren und vorrichtung zur trockenen kokskühlung |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0231192B1 (de) |
JP (1) | JPH0629431B2 (de) |
AU (1) | AU589927B2 (de) |
BR (1) | BR8507276A (de) |
CA (1) | CA1271156A (de) |
DE (2) | DE3441322C1 (de) |
ES (1) | ES8701214A1 (de) |
WO (1) | WO1986002939A1 (de) |
ZA (1) | ZA858666B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT387977B (de) * | 1986-12-18 | 1989-04-10 | Waagner Biro Ag | Verfahren zur gewinnung eines ausgasendem brenngases und einrichtung zur durchfuehrung des verfahrens |
DE3941453C1 (de) * | 1989-12-15 | 1991-06-20 | Didier Ofu Engineering Gmbh | |
DE102011115699A1 (de) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Verfahren zur trockenen Kühlung von Koks mit Kohlendioxid mit anschließender Verwendung des erzeugten Kohlenmonoxids |
DE102011115698A1 (de) | 2011-10-12 | 2013-04-18 | Thyssenkrupp Uhde Gmbh | Verfahren zur trockenen Kühlung von Koks mit Wasserdampf mit anschliessender Verwendung des erzeugten Synthesegases |
DE102012012417B4 (de) | 2012-06-25 | 2019-06-13 | Thyssenkrupp Industrial Solutions Ag | Verfahren und Vorrichtung zur verbesserten Vorerhitzung von Kohle durch Wärmetausch mit dem Kühlgas einer Kokstrockenkühlanlage |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE374702C (de) * | 1923-04-30 | Franz Boennemann Dr | Wasserrohrkessel zur Dampferzeugung durch Waermeentziehung aus hocherhitzten festen Guetern | |
DE2435500A1 (de) * | 1974-07-24 | 1976-02-12 | Hugo Dr Ing Schaefer | Verfahren zur vorerhitzung von kokskohle unter benutzung von ueberhitztem abhitzedampf, der in einer trockenkokskuehlanlage in besonderer weise erzeugt wird |
DE2952065C2 (de) * | 1979-12-22 | 1984-10-11 | Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Verfahren zur Trockenkühlung von Koks und Kokskühleinrichtung zur Durchführung des Verfahrens |
AU544655B2 (en) * | 1980-02-15 | 1985-06-06 | Thompson Minwax Company, The | Aqueous alkali paint stripper |
DE3130582A1 (de) * | 1981-08-01 | 1983-02-17 | Thyssen Industrie Ag, 4300 Essen | Verfahren und vorrichtung zur kuehlung von heissem schuettgut |
DE3203731C2 (de) * | 1982-02-04 | 1985-05-30 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zur trockenen Kokskühlung und Vorrichtung zum Durchführen dieses Verfahrens |
DE3203732C2 (de) * | 1982-02-04 | 1985-06-20 | Bergwerksverband Gmbh, 4300 Essen | Verfahren zur trockenen Kokskühlung und Vorrichtung zum Durchführen dieses Verfahrens |
DE3309695C2 (de) * | 1982-07-29 | 1986-11-06 | Dr. C. Otto & Co Gmbh, 4630 Bochum | Schachtkühler zum Trockenlöschen von Koks |
-
1984
- 1984-11-12 DE DE3441322A patent/DE3441322C1/de not_active Expired
-
1985
- 1985-10-19 DE DE8585905791T patent/DE3574727D1/de not_active Expired - Fee Related
- 1985-10-19 EP EP85905791A patent/EP0231192B1/de not_active Expired
- 1985-10-19 AU AU50960/85A patent/AU589927B2/en not_active Ceased
- 1985-10-19 JP JP60505088A patent/JPH0629431B2/ja not_active Expired - Lifetime
- 1985-10-19 WO PCT/EP1985/000549 patent/WO1986002939A1/de active IP Right Grant
- 1985-10-19 BR BR8507276A patent/BR8507276A/pt not_active IP Right Cessation
- 1985-11-11 ES ES548736A patent/ES8701214A1/es not_active Expired
- 1985-11-12 CA CA000494999A patent/CA1271156A/en not_active Expired - Fee Related
- 1985-11-12 ZA ZA858666A patent/ZA858666B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8602939A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU589927B2 (en) | 1989-10-26 |
JPS62501633A (ja) | 1987-07-02 |
JPH0629431B2 (ja) | 1994-04-20 |
ES548736A0 (es) | 1986-11-16 |
BR8507276A (pt) | 1987-10-27 |
DE3441322C1 (de) | 1986-05-28 |
EP0231192B1 (de) | 1989-12-13 |
WO1986002939A1 (en) | 1986-05-22 |
CA1271156A (en) | 1990-07-03 |
ES8701214A1 (es) | 1986-11-16 |
ZA858666B (en) | 1986-07-30 |
DE3574727D1 (de) | 1990-01-18 |
AU5096085A (en) | 1986-06-03 |
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