US3792769A - Coking oven - Google Patents

Coking oven Download PDF

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Publication number
US3792769A
US3792769A US00196420A US3792769DA US3792769A US 3792769 A US3792769 A US 3792769A US 00196420 A US00196420 A US 00196420A US 3792769D A US3792769D A US 3792769DA US 3792769 A US3792769 A US 3792769A
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US
United States
Prior art keywords
thermal conductivity
oven
coking oven
coking
conductivity factor
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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
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US00196420A
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English (en)
Inventor
H Echterhoff
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
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Bergwerksverband GmbH
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Filing date
Publication date
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    • 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
    • C10B29/00—Other details of coke ovens
    • C10B29/02—Brickwork, e.g. casings, linings, walls
    • 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
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/06—Doors; Door frames for ovens with horizontal chambers

Definitions

  • a Coking Oven has refraflofy Walls Surrounding at least one chamber and including a bottom wall of a 52 U.S. c1 202/267, 202/223, 106/58 material having a given thermal conductivity, a p 51 Int. Cl Cl0b 29/02 ripheral Wall extending p y from the bottom Wall 58 Field Of Search 202/267, 223, 139, 270; and having a taller lower Section of a material having 10 /5 7 a higher thermal conductivity and in its shorter upper section a thermal conductivity corresponding to the [56] References Cit given conductivity.
  • the roof is composed in part of UNITED STATES PATENT the material having the given conductivity.
  • the present invention relates to coking ovens, and particularly to coking ovens with high specific throughput capacity.
  • a coking oven with high specific throughput capacity which, briefly stated, comprises refractory wall means surrounding at least one chamher and including a bottom wall of a first material having a first thermal conductivity factor, a peripheral wall extending upwardly from the bottom wall and having a taller lower section of a second material having a higher second thermal conductivity factor and a shorter upper section of the first material, and a roof composed in part of the first material.
  • Heating flue means are provided in the wall means for heating the contents of the chamber.
  • the invention is based upon the realization that contrary to previous practice it is advantageous to utilize in the erection of coking ovens made of refractory material refractory bricks or stones of differential thermal conductivity.
  • the stretcher and header bricks are to be made, according to the present invention, of refractory bricks or stones having high thermal conductivity whereas the remaining bricks are wholly or in part of refractory bricks of lower thermal conductivity.
  • the bottom wall or sole and/or the heads adjacent the draw plugs and/or the wall portions in the region of the gas collecting space above the lower edge of the opening can be made of refractory material of lower thermal conductivity.
  • a coking oven constructed in this manner has the advantage that the sole, the head and the gas collecting space remain relatively cool with respect to the walls which are contacted by the coal. As a result of this, it is for instance avoided that excessively small pieces of coke develop on the sole, so that a coking oven constructed according to the present invention can be subjected to the coke-pushing operation without any difficulties even if the coking operation proceeds rapidly and the coking temperature is high.
  • the heads are made according to the invention, that is of bricks of lower thermal conductivity there will of course be a smaller thermal flow between the header wall and the door frame as well as the buckstave. This results in a substantial lessening of stresses upon these portions of the oven, a further advantage of the present invention.
  • the cooler gas collecting space that is cooler by reference to the prior art provides substantial advantages because the undesired graphite formation in the gas collecting space, is avoided due to lesser after-cracking of the oven gases.
  • the stretcher and header bricks which contact the coal in the oven chamber of material having a thermal conductivity of approximately 2.0-6.0 kcal/mh. C, preferably 3.45 Kcal/m.h.C.
  • refractory material with lower conductivity is used, namely a thermal conductivity of between approximately 1.0 and 1.8 kcal/m.h. C; certain parts of the wall may be made of the conventional insulating bricks having a thermal conductivity factor of O.2O.7, preferably O.30.5 kcal/m.h. C.
  • All known refractory bricks can be used for the purposes of the present invention as long as they have the desired thermal conductivity factor and are capable of withstanding the aggressive conditions of a coking oven I have found particularly advantageous for making the sole, the heads and the gas collecting space, refractory bricks of a good fire clay quality as well as sillimanite and silica bricks.
  • the material for making the refractory wall means surrounding the heating flue, that is the stretcher and header bricks may be made of the same materials as those just mentioned above, but with additives incorporated therein to increase their thermal conductivity such as metal oxides or metal carbides which afford higher thermal conductivity but at least approximately the same thermal expansion and contraction coefficient as the base material.
  • Refractory materials with a thermal conductivity factor below 2 kcal/m.h.C are for instance the well known fire clay bricks, for instance 42-45 percent A1 and 50-54 percent SiOZ; also suitable are silica bricks in excess of 95 percent SiO and sillimanite bricks (AIgOg Thermal conductivity in excess of 2 kcal/m.h.C is for instance possessed by artificial refractory magnesite bricks as well as magnesite bricks and the aforementioned bricks in certain metal oxides or metal carbides are incorporated namely 20-70, preferably 40-60 percent by weight of SiC or of oxides of the elements Fe, Ti, Cu, Ni, Co, Ta, Os and W0.
  • FIG. 1 is a vertical section through a coking oven according to the present invention.
  • FIG. 2 is a fragmentary detail view shown approximately on double scale of FIG. I, ofa coking oven embodying the invention.
  • FIG. 1 illustrates a vertical section through one coking chamber 1 of a coking oven, embodying the present invention, the coking chamber not being filled with coke.
  • the fines To the left and to the right in the drawing of the chamber 1 are the fines.
  • the refractory bricks having a high thermal conductivity factor are shown in section with wavy section lines, refractory bricks with lesser thermal conductivity factor are shown dotted and known insulating bricks are shown in section with alternating continuous and broken lines.
  • reference numeral 1 identifies the header and stretcher bricks, reference numeral 3 the bottom wall of the chamber, and reference numeral 4 the part of the circumferential wall which surrounds the gas collecting space 5.
  • Reference numeral 6 identifies the roof or ceiling of the oven. The composition of the various wall portions will be clear from the sectioning which has been employed.
  • FIG. 2 I have illustrated a view of the refractory wall means of an oven which isbroken open approximately at the middle of its height, and it will be seen that half a coking chamber with a portion of the heating flue to the left of it, is shown.
  • the sectioning of the materials again indicates the same conductivity factors whichhave been discussed above with respect to FIG. 1.
  • Reference numeral 7 designates the bottom wall of the chamber which is overlapped by the door plug 8 which pivots out of the oven as the door 9 is opened.
  • the door 9 and the door frame 10 are lined in conventional manner with insulating brick 11.
  • Reference numeral 12 designates a so-called overhead binding brick which does not contact the contents of the chamber when the oven is in operation.
  • the stretcher bricks l3 and header bricks 14 are of refractory material having high thermal conductivity in accordance with the present invention, as indicated by their hatching.
  • the invention is not limited to a particular oven construction per se, but is concerned with the utilization of refractory materials of different thermal conductivity factors, but of at least substantially identical coefficients of thermal expansion and contraction, in different parts of the wall means bounding the oven chamber.
  • a coking oven with high specific throughput capacity comprising refractory wall means surrounding at least one chamber and including a bottom wall of a first material having a first thermal conductivity factor, a peripheral wall extending upwardly from said bottom wall and having a taller lower section composed entirely of a single second material having a higher second thermal conductivity factor and a shorter upper section of said first material, and a roof composed in part of said first material; and heating flue means in said wall means for heating the contents of said chamber.
  • thermo conductivity factor of said second material is thermal conductivity factor of said third material is bebetween substantially 3 and 4.5 kcal/m.h.C. tween substantially 0.3 and 05 kcal/m.h.C.
  • a coking oven as defined in claim 2 said wall 6.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Coke Industry (AREA)
US00196420A 1970-11-14 1971-11-08 Coking oven Expired - Lifetime US3792769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2056119A DE2056119B2 (de) 1970-11-14 1970-11-14 Koksöfen mit hoher spezifischer Durchsatzleistung

Publications (1)

Publication Number Publication Date
US3792769A true US3792769A (en) 1974-02-19

Family

ID=5788115

Family Applications (1)

Application Number Title Priority Date Filing Date
US00196420A Expired - Lifetime US3792769A (en) 1970-11-14 1971-11-08 Coking oven

Country Status (4)

Country Link
US (1) US3792769A (enExample)
DE (1) DE2056119B2 (enExample)
FR (1) FR2114388A5 (enExample)
GB (1) GB1340437A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039342A (en) * 1970-04-21 1977-08-02 Bergwerksverband Gmbh Firebricks
US4310386A (en) * 1977-06-14 1982-01-12 Siderurgie Maritime (Maritieme Staalnijverheid) Sidmar S.A. Method of and apparatus for the dry quenching of coke
EP0089623A3 (en) * 1982-03-19 1985-01-09 Bergwerksverband Gmbh Coke oven
US20100065412A1 (en) * 2006-09-21 2010-03-18 Uhde Gmbh Coke oven featuring improved heating properties

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742276A1 (de) * 1995-05-12 1996-11-13 Krupp Koppers GmbH Verfahren zum Betrieb eines Koksofens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US682441A (en) * 1901-05-22 1901-09-10 Samuel T Wellman Coke-oven.
US1818713A (en) * 1926-05-13 1931-08-11 Semet Solvay Eng Corp Coke oven
US2147681A (en) * 1934-03-31 1939-02-21 Koppers Co Inc Horizontal chamber coke oven
US3390002A (en) * 1966-06-07 1968-06-25 Dresser Ind Magnesite refractories
US3496067A (en) * 1967-01-27 1970-02-17 Koppers Co Inc Horizontal coke oven having plural types of brick linings for heating walls
US3676163A (en) * 1969-08-25 1972-07-11 Oesterr Amerikan Magnesit Refractory,fired magnesia brick

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US682441A (en) * 1901-05-22 1901-09-10 Samuel T Wellman Coke-oven.
US1818713A (en) * 1926-05-13 1931-08-11 Semet Solvay Eng Corp Coke oven
US2147681A (en) * 1934-03-31 1939-02-21 Koppers Co Inc Horizontal chamber coke oven
US3390002A (en) * 1966-06-07 1968-06-25 Dresser Ind Magnesite refractories
US3496067A (en) * 1967-01-27 1970-02-17 Koppers Co Inc Horizontal coke oven having plural types of brick linings for heating walls
US3676163A (en) * 1969-08-25 1972-07-11 Oesterr Amerikan Magnesit Refractory,fired magnesia brick

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039342A (en) * 1970-04-21 1977-08-02 Bergwerksverband Gmbh Firebricks
US4310386A (en) * 1977-06-14 1982-01-12 Siderurgie Maritime (Maritieme Staalnijverheid) Sidmar S.A. Method of and apparatus for the dry quenching of coke
EP0089623A3 (en) * 1982-03-19 1985-01-09 Bergwerksverband Gmbh Coke oven
US4565605A (en) * 1982-03-19 1986-01-21 Bergwerksverband Gmbh Heating wall for coke-oven battery
US20100065412A1 (en) * 2006-09-21 2010-03-18 Uhde Gmbh Coke oven featuring improved heating properties
US8460516B2 (en) 2006-09-21 2013-06-11 Uhde Gmbh Coke oven featuring improved heating properties

Also Published As

Publication number Publication date
DE2056119C3 (enExample) 1975-04-30
DE2056119A1 (de) 1972-06-15
GB1340437A (en) 1973-12-12
FR2114388A5 (enExample) 1972-06-30
DE2056119B2 (de) 1974-09-05

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