EP0032412A2 - Verfahren zur Herstellung von metallurgischem Koks aus einer Kohlenmischung - Google Patents

Verfahren zur Herstellung von metallurgischem Koks aus einer Kohlenmischung Download PDF

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Publication number
EP0032412A2
EP0032412A2 EP81200035A EP81200035A EP0032412A2 EP 0032412 A2 EP0032412 A2 EP 0032412A2 EP 81200035 A EP81200035 A EP 81200035A EP 81200035 A EP81200035 A EP 81200035A EP 0032412 A2 EP0032412 A2 EP 0032412A2
Authority
EP
European Patent Office
Prior art keywords
coking
fine
coal
little
drying
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
EP81200035A
Other languages
English (en)
French (fr)
Other versions
EP0032412A3 (en
EP0032412B1 (de
Inventor
René Munnix
Arthur Poos
Roland Vidal
Jacques Dellieu
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 BE6/47061A external-priority patent/BE881162A/fr
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of EP0032412A2 publication Critical patent/EP0032412A2/de
Publication of EP0032412A3 publication Critical patent/EP0032412A3/fr
Application granted granted Critical
Publication of EP0032412B1 publication Critical patent/EP0032412B1/de
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
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
    • 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 present invention relates to an improved process for the manufacture of metallurgical coke, usable in particular as a constituent of the charge of blast furnaces
  • metallurgical coke is generally produced by charging raw materials, mainly coking coal, in carbonization cells, and by heating these materials which, by distillation and agglutination, give a product having well-known properties. coke used in steel plants.
  • the process for the production of metallurgical coke from a mixture of fine carbon with little or no coking and fine coking coal which is the subject of the present invention, is essentially characterized in that the moisture content is reduced of said fine charcoal with little or no coking at a value of less than 3%, in that to the said fine charcoal with little or no coking, dried, a binder and / or a solvent in suitable proportion, by mixing said fine charcoal little or not coking dried and coated with a binder and / or a solvent with said charcoal fine coking and in that one puts said mixture as is in the carbonization oven.
  • the moisture content of the fine carbon which is little or not coking is reduced by heating to a temperature suitable for the various operating conditions, in particular the nature of the coal. It is also important that drying, in particular by heating, does not cause any oxidation of the fine charcoal.
  • the heating of fine coal which is not very coking or not coking is carried out under a non-oxidizing atmosphere, composed for example of neutral smoke or dry steam.
  • the drying gas of the fine charcoal contains only CO 2 and N 2 , as well as sufficiently diluted O 2 , all at a temperature sufficiently low to avoid any oxidation of the fine charcoal.
  • the fine or little coking charcoal is at the desired temperature, it is particularly advantageous to introduce it, as quickly as possible, into a coating chamber, where the appropriate binder and / or solvent is added to it.
  • the binder and / or the solvent are advantageously added in liquid form, preferably by spraying using a device which is the subject of another proposal from the same applicant.
  • this transfer of fine carbon that is not very coking or not coking from the drying enclosure to the coating enclosure is carried out under a protective atmosphere, preferably under a non-oxidizing atmosphere.
  • the process which is the subject of the present invention does not have these drawbacks.
  • it makes it possible to avoid, or at least to greatly reduce handling of dried coal.
  • the dried and possibly preheated fine coal undergoes only one manipulation, namely the transfer from the drying chamber to the coating chamber.
  • the fine carbon that is not very coking or not is mixed in adequate proportions with coking fine carbon and the mixture is placed in the carbonization cells.
  • the process of the invention makes it possible to carry out, in a particularly easy and economical manner, the drying and possibly the preheating of the fine coal which is not very coking or not, as well as the addition of binder. and / or solvent and the introduction of the mixture into the carbonization cells.
  • binder and / or solvent ensures the coating of the carbon grains with a layer which protects them against oxidation by ambient air.
  • the attached figure illustrates a device making it possible to implement the method which is the subject of the present invention.
  • dans.lequel is carried out the drying of fine coal little or not coking.
  • the coal, ground to size, is stored in 2 and poured by 3 into the enclosure 4 where, after splitting any lumps of coal, its actual drying takes place under the action of the fumes 5 coming from a flame 6 generated by a burner 7 supplied at 8 by air and at 9 by an appropriate fuel.
  • the coal is led, along with the combustion products, through conduits in which the heat exchanges between the fumes and the fine charcoal continue.
  • the coal thus dried and preheated leaves the enclosure 11 through the orifice 12 to penetrate, via an airlock, in the enclosure 13 in which, under a non-oxidizing atmosphere, obtained for example by taking a smoke at the outlet 19, the fine coal - binder / solvent (solid or liquid) mixture is carried out, the latter being brought into the enclosure 13 by 14.
  • the coal little or non-coking, dried and coated is mixed with coking fine charcoal in a device not shown and the mixture is placed in carbonization cells.
  • the gases leave the enclosure 11 through the opening 15, enter a chamber 16 where they are dusted at 17.
  • the recovered dust is discharged at 18, while the dusted gases escape into the atmosphere. sphere at 19. Part of these is however deflected at 20 and recycled at 21 in a mixing chamber 22, disposed between the flame 6 proper and the enclosure 4, in order to lower the temperature of the flame 6 and to prevent the oxidation of carbon, and / or possibly the degradation of its coking properties.
  • a heat exchanger is provided at 23 in the path of the pipe 20, to adjust the temperature of the gases to be injected at 21.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
EP19810200035 1980-01-15 1981-01-13 Verfahren zur Herstellung von metallurgischem Koks aus einer Kohlenmischung Expired EP0032412B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6/47061A BE881162A (fr) 1980-01-15 1980-01-15 Procede ameliore de fabrication de coke metallurgique a partir d'un melange de charbons.
BE47061 1980-01-15

Publications (3)

Publication Number Publication Date
EP0032412A2 true EP0032412A2 (de) 1981-07-22
EP0032412A3 EP0032412A3 (en) 1981-09-30
EP0032412B1 EP0032412B1 (de) 1984-04-18

Family

ID=3874845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810200035 Expired EP0032412B1 (de) 1980-01-15 1981-01-13 Verfahren zur Herstellung von metallurgischem Koks aus einer Kohlenmischung

Country Status (2)

Country Link
EP (1) EP0032412B1 (de)
DE (1) DE3163120D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2305122C1 (ru) * 2006-08-30 2007-08-27 Борис Анатольевич Мусохранов Шихта для получения металлургического кокса (варианты)
US7785447B2 (en) * 2001-09-17 2010-08-31 Combustion Resources, Llc Clean production of coke

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105518A5 (en) * 1970-09-10 1972-04-28 Lermusiaux Albert Metallurgical coke - from non-cokeable precursors by reacting with binder before high temperature coking
FR2273857A1 (fr) * 1974-06-07 1976-01-02 Centre Rech Metallurgique Procede de fabrication de coke metallurgique
BE875411A (fr) * 1979-04-06 1979-07-31 Centre Rech Metallurgique Perfectionnements aux procedes de fabrication de agglomeres de houilles
BE873059A (fr) * 1978-12-22 1979-06-22 Centre Rech Metallurgique Procede de fabrication de coke metallurgique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7785447B2 (en) * 2001-09-17 2010-08-31 Combustion Resources, Llc Clean production of coke
RU2305122C1 (ru) * 2006-08-30 2007-08-27 Борис Анатольевич Мусохранов Шихта для получения металлургического кокса (варианты)

Also Published As

Publication number Publication date
EP0032412A3 (en) 1981-09-30
EP0032412B1 (de) 1984-04-18
DE3163120D1 (en) 1984-05-24

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