EP0329705B1 - Verfahren und vorrichtung zur kühlung und entstaubung von hochtemperaturkoks - Google Patents

Verfahren und vorrichtung zur kühlung und entstaubung von hochtemperaturkoks Download PDF

Info

Publication number
EP0329705B1
EP0329705B1 EP87907757A EP87907757A EP0329705B1 EP 0329705 B1 EP0329705 B1 EP 0329705B1 EP 87907757 A EP87907757 A EP 87907757A EP 87907757 A EP87907757 A EP 87907757A EP 0329705 B1 EP0329705 B1 EP 0329705B1
Authority
EP
European Patent Office
Prior art keywords
coke
immersion
water
cooling
container
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 - Lifetime
Application number
EP87907757A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0329705A1 (de
Inventor
Kurt Lorenz
Dieter Stalherm
Horst Dungs
Werner Schumacher
Willi Brinkmann
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.)
Thyssen Still Otto Anlagentechnik GmbH
Original Assignee
Still Otto GmbH
Thyssen Still Otto Anlagentechnik 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
Priority claimed from DE19863638165 external-priority patent/DE3638165A1/de
Priority claimed from DE19873715355 external-priority patent/DE3715355A1/de
Application filed by Still Otto GmbH, Thyssen Still Otto Anlagentechnik GmbH filed Critical Still Otto GmbH
Priority to AT87907757T priority Critical patent/ATE88209T1/de
Publication of EP0329705A1 publication Critical patent/EP0329705A1/de
Application granted granted Critical
Publication of EP0329705B1 publication Critical patent/EP0329705B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • C10B39/00—Cooling or quenching coke
    • C10B39/04—Wet quenching

Definitions

  • the invention relates to a method of cooling and dedusting of Kochtemperaturkoks in at least two stages, where the coke is cooled in the first stage to below about 800 o C, and to apparatus for performing the method with the features in the preamble of claim. 8
  • DE-OS 25 33 606 a two-step process is described for cooling of coke, wherein said coke is cooled initially in giving current with the aid of an inert gas in a first closed container of 1100 o C to about 315-425 o C and thereafter in a sprayed closed container with water and the evaporation of the water to reduce the temperature of the coke to 95 to 150 o C.
  • the steam rises and entrains dust particles, so that the exhaust gases have to be cleaned before being released into the atmosphere.
  • the object of the invention is to improve the generic method for cooling and dedusting high-temperature coke and the device for carrying out the method in such a way that the environmental problems, in particular the dust problems when loading the coke, are largely eliminated and that the method is furthermore for coke dry cooling is simplified in view of a cheaper design.
  • the energy of the coke is sometimes used considerably less in the first stage and therefore less steam is generated than in other known processes.
  • This is particularly useful for coke oven plants, at who lack the ability to deliver large quantities of high-tension steam to external consumers.
  • the actual coke dry cooling chamber can be provided smaller and in particular with a much lower overall height.
  • the coke temperature is lowered so far in the first stage before the water immersion that the gasification reactions proceeding accelerated at higher temperatures are largely suppressed in the process according to the invention.
  • the hot coke can expediently only be indirectly cooled to approx. 600 o C and either give off the heat to cooling surfaces installed in the shaft or on a continuously rotating hot coke conveyor belt to radiation cooling surfaces arranged above and below the conveyor belt.
  • a direct cooling with cooling gas counter-current of coke can be appropriately selected depending are cooled to about 400 o C by the quantity and temperature of the cooling gas under certain circumstances.
  • the coke can be rapidly cooled below 800 o C, preferably to about 600-650 o C, by introducing hot steam at about 120 ° C., so that there is no gasification of the coke.
  • the steam drawn off at approx. 500 to 600 o C can either be used for preheating coal or for generating high-pressure steam in a waste heat boiler.
  • the coke can be continuously cooled in the first stage to the temperature of 200 to 800 ° C., preferably 400-650 ° C., mentioned above , and then added to the subsequent immersion container in a closed system.
  • the coke is conveyed through a water bath in a short time, whereby due to the short dwell time of the coke in the water bath there is generally no complete heat exchange within the coke pieces between the grain surface and the grain interior. Therefore, the coke is then kept in a third stage in a closed post-evaporation tank.
  • there is an intensive heat exchange within the coke bed between the interior of the grain and the grain surface whereby a large part of the water adhering to the surface is evaporated and drawn off.
  • the intensive heat exchange is promoted by the released water vapor, which then flows through the coke bed and can also be circulated.
  • the coke leaves the post-evaporation tank with a uniform temperature and water content which does not change significantly during further loading.
  • dust particles can no longer loosen during the further treatment of the coke, so that dust emissions are avoided. Dipping times of less than 3 minutes, preferably 10 to 60 seconds, are sufficient to almost completely detach the coke dust adhering to the coke piece and to discharge it to the sewage treatment plant with the rinse water. The adhering coke dust is no longer carried into the subsequent evaporation container.
  • the coke has a relatively low water content after leaving the post-evaporation tank, which is favorable for later use in the blast furnace.
  • the temperature of the coke after leaving the Nachverdampfungs constituteers is preferably to 70 - 80 o C, so that an undesirable steam development during the further transport of the coke can be turned to open conveyors substantially below the evaporation temperature.
  • the water vapor formation is relatively low in direct immersion.
  • the water vapor can be drawn off from the closed container and processed in a simple manner on the raw gas cleaning side of the coking plant, preferably by introducing it into the raw gas receiver.
  • Even in the immersion tank a large part of the water vapor is condensed again by constant sprinkling over the entire surface of the water basin. The same happens when the steam is introduced into the receiver with the help of the water sprinkling there.
  • cold fresh water and cooled circulating water from the sewage treatment plant keep the water temperature in the plunge pool at approx. 60 to 80 o C, so that as much of the heat contained in the coke as possible is dissipated via the heating of the water and thus little water vapor is generated.
  • a device according to claim 8 is proposed, wherein the coke discharge from the coke drying chute or the hot coke conveyor belt and the immersion tank and the downstream post-evaporation tank are each connected to one another in a gastight manner, so that no emissions occur when the coke is transferred from one tank to another can.
  • the lower end of the filler neck can be immersed in the water of the immersion container and a dense coke bed can be kept in the entire filler neck and the outlet funnel.
  • a backflow of water vapor can be prevented with the help of a butterfly valve in the absence of coke.
  • the coke discharge device from the coke dry cooling can also be designed without the usual lock bunkers or gas-tight discharge locks.
  • the discharge on non-gas-tight conveying bodies, such as. B. discharge rockers are limited.
  • the antechamber (19) in the figure is filled with one or more coke transport bucket fillings in a manner known per se and the coke slides continuously over the coke feed (2) into the coke drying cooling shaft (1). There it gives off heat either indirectly to the cooling walls (6) and / or directly to the cooling gases, which are supplied or discharged via the connections (3/5) in countercurrent (solid arrows) or in direct current (dashed arrows). In the latter case, the Connection (3) about 120 o C hot water vapor for direct current cooling of the coke, which is drawn off at the lower end of the cooling chamber below the discharge rockers (20) via the cooling gas suction (5) at a temperature of 500 to 600 o C. After leaving the dry cooling zone, the coke has a temperature of approx.
  • the residence time of the coke in the water immersion bath is determined by the speed of the coke conveyor (13), which is circulated around the deflection rollers (11) and expediently consists of a plate conveyor with sieve-shaped plates.
  • the coke conveyor (13) there is a scraper conveyor (18), with the help of which the coke particles separated from the coke are transported to the water outlet (16).
  • the coke conveyor (13) With the coke conveyor (13) the coke is brought directly into the gas-tight adjoining the immersion tank (8) subsequent evaporation tank (14), from which the coke after a certain time in a manner known per se, for. B. is withdrawn via locks or cellular wheels on the coke discharge (15).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
EP87907757A 1986-11-08 1987-11-09 Verfahren und vorrichtung zur kühlung und entstaubung von hochtemperaturkoks Expired - Lifetime EP0329705B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87907757T ATE88209T1 (de) 1986-11-08 1987-11-09 Verfahren und vorrichtung zur kuehlung und entstaubung von hochtemperaturkoks.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19863638165 DE3638165A1 (de) 1986-11-08 1986-11-08 Verfahren zur kuehlung und entstaubung von koks nach verlassen einer kokstrockenkuehlung
DE3638166 1986-11-08
DE3638166 1986-11-08
DE3638165 1986-11-08
DE19873715355 DE3715355A1 (de) 1986-11-08 1987-05-08 Verfahren und vorrichtung zur kuehlung und entstaubung von hochtemperaturkoks
DE3715355 1987-05-08

Publications (2)

Publication Number Publication Date
EP0329705A1 EP0329705A1 (de) 1989-08-30
EP0329705B1 true EP0329705B1 (de) 1993-04-14

Family

ID=27195080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87907757A Expired - Lifetime EP0329705B1 (de) 1986-11-08 1987-11-09 Verfahren und vorrichtung zur kühlung und entstaubung von hochtemperaturkoks

Country Status (9)

Country Link
EP (1) EP0329705B1 (enrdf_load_stackoverflow)
JP (1) JP2532636B2 (enrdf_load_stackoverflow)
KR (1) KR950006548B1 (enrdf_load_stackoverflow)
AT (1) ATE88209T1 (enrdf_load_stackoverflow)
AU (1) AU8277087A (enrdf_load_stackoverflow)
BR (1) BR8707867A (enrdf_load_stackoverflow)
DE (1) DE3785456D1 (enrdf_load_stackoverflow)
IN (1) IN170882B (enrdf_load_stackoverflow)
WO (1) WO1988003549A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100960379B1 (ko) * 2008-07-18 2010-05-28 주식회사 포스코 코크스 분진 집진설비의 분진 처리장치
ITMI20130826A1 (it) * 2013-05-21 2014-11-22 Ambiente E Nutrizione Srl Procedimento per lo spegnimento di coke

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE377006C (de) * 1923-06-09 Georgs Marien Bergwerks Und Hu Koksloesch- und Verladewagen mit endlosem Foerderband
US3959084A (en) * 1974-09-25 1976-05-25 Dravo Corporation Process for cooling of coke
US4100034A (en) * 1976-07-19 1978-07-11 Peabody Coal Company Quenching method
DE3523897C1 (de) * 1985-02-21 1986-08-14 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren zur Kuehlung und Entstaubung von Koks nach Verlassen der Kokstrockenkuehlung

Also Published As

Publication number Publication date
EP0329705A1 (de) 1989-08-30
KR890700155A (ko) 1989-03-10
KR950006548B1 (ko) 1995-06-16
WO1988003549A1 (en) 1988-05-19
AU8277087A (en) 1988-06-01
DE3785456D1 (de) 1993-05-19
ATE88209T1 (de) 1993-04-15
BR8707867A (pt) 1989-10-03
IN170882B (enrdf_load_stackoverflow) 1992-06-06
JP2532636B2 (ja) 1996-09-11
JPH02500752A (ja) 1990-03-15

Similar Documents

Publication Publication Date Title
DE3123141C2 (enrdf_load_stackoverflow)
DE3880155T2 (de) Pyrolyses von organischem material.
DE3138128C2 (enrdf_load_stackoverflow)
EP0165585B1 (de) Verfahren und Vorrichtung zum Entfernen von Gummi und/oder Kunststoff aus Verbundkörpern aus Metall und wenigstens einem dieser Materialien
DE2812521A1 (de) Verfahren zum waermebehandeln von kohle und vorrichtung zur durchfuehrung des verfahrens
EP0126407A2 (de) Verfahren zur Gewinnung von verwertbarem Gas aus Müll durch Pyrolyse und Vorrichtung zum Durchführen des Verfahrens
CH348124A (de) Verfahren zur anaeroben Faulung und Eindickung des in Abwasserkläranlagen anfallenden Schlammes
DD292316A5 (de) Verfahren und vorrichtung zur thermischen behandlung von kohlenstoffhaltigen materialien
EP0329705B1 (de) Verfahren und vorrichtung zur kühlung und entstaubung von hochtemperaturkoks
EP0013986B1 (de) Verfahren zum Abtreiben von Ammoniak aus ammoniakhaltigen Lösungen, insbesondere Kokereiabwässern
DE3638165A1 (de) Verfahren zur kuehlung und entstaubung von koks nach verlassen einer kokstrockenkuehlung
DE3040385A1 (de) Verfahren zur oberflaechenreinigung von quarzkristallstuecken und vorrichtung zur durchfuehrung des verfahrens
DE4442100A1 (de) Verfahren und Anlage zur Aufbereitung von Klärschlamm zu einer Rohmehlkomponente für die Zementherstellung
DE3531748C2 (enrdf_load_stackoverflow)
DE2614021B2 (de) Verfahren zur Regenerierung und Rückgewinnung von in einem Belebtschlammprozeß verbrauchter pulvriger Aktivkohle
CH706804A2 (de) Verfahren und Vorrichtung zur Verdampfung von Biomasse und kohlenstoffhaltigen Stoffströmen zur Erzeugung von Energieträgern.
DE3715355A1 (de) Verfahren und vorrichtung zur kuehlung und entstaubung von hochtemperaturkoks
DE3604750A1 (de) Verfahren zur kontinuierlichen reduktion von schwefeldioxidhaltigen gasen zu schwefel und vorrichtung zur durchfuehrung des verfahrens
DE2653325A1 (de) Verfahren zur aufarbeitung von kalkhaltigem abfallschlamm
DE4404813C1 (de) Verfahren zur Wirbelschichttrocknung von Schlamm und Wirbelschichttrockner zur Durchführung des Verfahrens
DE2842425A1 (de) Verfahren und vorrichtung zum herstellen von heissbriketts
DE4002591C2 (de) Verfahren und Vorrichtung zur Lösemittelabtrennung und/oder Flammpunkterhöhung bei Abfallstoffen
DE2935687C2 (enrdf_load_stackoverflow)
DE377523C (de) Vorrichtung zum Gluehen von gebrauchten, fein pulverisierten Entfaerbungsmitteln
DE10253024A1 (de) Verfahren zur mikrobiellen aeroben Konvesion von biogenen organischen Frisch- und/oder Abfallmaterialien

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19890505

17Q First examination report despatched

Effective date: 19920317

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930414

Ref country code: NL

Effective date: 19930414

REF Corresponds to:

Ref document number: 88209

Country of ref document: AT

Date of ref document: 19930415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3785456

Country of ref document: DE

Date of ref document: 19930519

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930721

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: THYSSEN STILL OTTO ANLAGENTECHNIK GMBH

EPTA Lu: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19961001

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19961014

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19971023

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19971030

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971109

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971109

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19971113

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130

BERE Be: lapsed

Owner name: STILL OTTO G.M.B.H.

Effective date: 19981130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991025

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051109