EP0144945A2 - Procédé et dispositif pour l'exploitation discontinue de fours à coke verticaux - Google Patents

Procédé et dispositif pour l'exploitation discontinue de fours à coke verticaux Download PDF

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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
coking
chamber
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
Application number
EP84114624A
Other languages
German (de)
English (en)
Other versions
EP0144945A3 (en
EP0144945B1 (fr
Inventor
Kurt Dr. Lorenz
Hans-Josef Kronberg
Dieter Dr. Stalherm
Horst Dungs
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.)
Still Otto GmbH
Original Assignee
Still Otto GmbH
Carl Still GmbH and Co KG
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 Still Otto GmbH, Carl Still GmbH and Co KG filed Critical Still Otto GmbH
Publication of EP0144945A2 publication Critical patent/EP0144945A2/fr
Publication of EP0144945A3 publication Critical patent/EP0144945A3/de
Application granted granted Critical
Publication of EP0144945B1 publication Critical patent/EP0144945B1/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
    • 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)
EP19840114624 1983-12-07 1984-12-01 Procédé et dispositif pour l'exploitation discontinue de fours à coke verticaux Expired EP0144945B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833344106 DE3344106A1 (de) 1983-12-07 1983-12-07 Verfahren und vorrichtung zum diskontinuierlichen betrieb von vertikalkammerverkokungsoefen
DE3344106 1983-12-07

Publications (3)

Publication Number Publication Date
EP0144945A2 true EP0144945A2 (fr) 1985-06-19
EP0144945A3 EP0144945A3 (en) 1987-01-14
EP0144945B1 EP0144945B1 (fr) 1989-03-29

Family

ID=6216190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840114624 Expired EP0144945B1 (fr) 1983-12-07 1984-12-01 Procédé et dispositif pour l'exploitation discontinue de fours à coke verticaux

Country Status (3)

Country Link
EP (1) EP0144945B1 (fr)
JP (1) JPS60139788A (fr)
DE (1) DE3344106A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2139909C1 (ru) * 1998-11-12 1999-10-20 Акционерное общество открытого типа "Завод "Сланцы" Вертикальная камерная печь для прокаливания твердого топлива
CN101519595B (zh) * 2009-03-31 2012-06-13 山西中元煤洁净技术有限公司 一种煤料炭化设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4867795B2 (ja) * 2007-05-30 2012-02-01 マックス株式会社 仕切部材
USD808799S1 (en) 2015-11-17 2018-01-30 Hunter Fan Company Carton with color striping

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE299546C (fr) *
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
GB670301A (en) * 1949-06-18 1952-04-16 William David Jones Improvements in or relating to ovens for the production of gas and coke
DE2657213C2 (de) * 1976-12-17 1984-01-12 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Batterieweise angeordnete vertikale Verkokungsofenkammern
DE2756330C2 (de) * 1977-12-17 1984-05-03 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Vertikalkammer-Verkokungsöfen in batterieweiser Anordnung zum kontinuierlichen Verkoken von Briketts aus Stein-, Braunkohle oder Torf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2139909C1 (ru) * 1998-11-12 1999-10-20 Акционерное общество открытого типа "Завод "Сланцы" Вертикальная камерная печь для прокаливания твердого топлива
CN101519595B (zh) * 2009-03-31 2012-06-13 山西中元煤洁净技术有限公司 一种煤料炭化设备

Also Published As

Publication number Publication date
DE3344106A1 (de) 1985-06-13
EP0144945A3 (en) 1987-01-14
EP0144945B1 (fr) 1989-03-29
JPS60139788A (ja) 1985-07-24

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