US3616947A - Load-sensing device for a coke oven leveling bar - Google Patents

Load-sensing device for a coke oven leveling bar Download PDF

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Publication number
US3616947A
US3616947A US837705A US3616947DA US3616947A US 3616947 A US3616947 A US 3616947A US 837705 A US837705 A US 837705A US 3616947D A US3616947D A US 3616947DA US 3616947 A US3616947 A US 3616947A
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US
United States
Prior art keywords
leveling bar
bar
coke oven
leveling
chamber
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
US837705A
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English (en)
Inventor
Linwood G Tucker
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.)
Raymond Kaiser Engineers Inc
Original Assignee
Koppers Co Inc
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Publication date
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Assigned to RAYMOND KAISER ENGINEERS INC., A CORP OF OHIO reassignment RAYMOND KAISER ENGINEERS INC., A CORP OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KOPPERS COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C10B37/00—Mechanical treatments of coal charges in the oven
    • C10B37/02—Levelling charges, e.g. with bars
    • 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 limit switch is positioned on the pusher machine adjacent a leveling bar. When the leveling bar is extended into a coke oven chamber having insufficient coal therein and deflects excessively, the leveling bar contacts the limit switch, and the driving motor that advances and retracts the leveling bar is actuated to withdraw the leveling bar from the coke oven chamber.
  • FIG. I is a schematic elevational view partly in section showing one embodiment of the invention in one operative position.
  • FIG. 2 is a view similar to that of FIG. 1 showing the embodiment of the invention in another operative position.
  • the upper portion of a conventional coke oven door 11 is provided with an opening 13 that is closeable in a normal manner by a leveling bar door (not shown), that is hinged to the coke oven door 11.
  • a leveling bar door (not shown), that is hinged to the coke oven door 11.
  • a conventional leveling bar is inserted into a coke oven chamber I7 to level the coal piles in a coking chamber 17.
  • the leveling bar 15 is conventional and may be similar to the leveling bar described in U.S. Pat. No. 3,207,334. It is carried by a pusher machine 27 and is adapted to be reciprocated when extended fully across the coke oven battery. Ordinarily,
  • the leveling bar 15 is reasonably supported by coal in the coke oven chamber 17 so that it does not. deflect as a cantilever beam beyond reasonable limits.
  • cantilever-type leveling bar 15 may deflect beyond a reasonable limit and to such an extent that It may become jammed in the leveling bar door opening 13.
  • the pusher machine 27 is provided also with a pair of rollers 19, 21 that coact with the leveling bar 15, as shown in FIG. I.
  • the roller 19 is fixed, but the roller 21 is journaled to one end of an arm 23 that is pivotally mounted, as at 25, to the pusher machine 27.
  • the arm 23 coacts with a spring 29 that also coacts with the pusher machine 27. Adjacent to the spring 29, there is a limit switch 31 that is positioned so as to coact with the leveling bar 15 whenever it deflects beyond a preselected reasonable limit.
  • the limit switch 31 is connected electrically in circuit to a power source 33 and a motor, M, that advances and retracts the leveling bar into and out of the coke oven chamber 17.
  • the motor, M is also connected by means of wires 35 with a reversing circuit (not shown) so that, when the leveling bar 15a of FIG. 2 deflects to within close proximity of the limit of deflection and actuates the limit switch 31, the motor, M, reverses and retracts the leveling bar from the coke oven chamber 17.
  • the spring 29 provides resilient bias so that reasonable deflection of the leveling bar 15 is possible without engaging the limit switch 31.
  • That the apparatus of the invention is simple and is effective to prevent jamming of the leveling bar in the leveling bar opening of the coke oven door;
  • the apparatus of the invention signals the driving motor of the leveling bar to retract the bar when it deflects to such an extent that the bar may not be retractable.
  • a coke oven battery having a coke oven chamber with a door in which there is an opening through which a coalleveling bar reciprocates to level coal in said chamber, the improvement comprising:
  • first means coactive with said leveling bar when said bar is extended into said chamber and deflects beyond a preselected limit
  • said first means is a limit switch; and a b. said second means is a reversible motor.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
US837705A 1969-06-30 1969-06-30 Load-sensing device for a coke oven leveling bar Expired - Lifetime US3616947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83770569A 1969-06-30 1969-06-30

Publications (1)

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US3616947A true US3616947A (en) 1971-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US837705A Expired - Lifetime US3616947A (en) 1969-06-30 1969-06-30 Load-sensing device for a coke oven leveling bar

Country Status (2)

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US (1) US3616947A (enrdf_load_stackoverflow)
GB (1) GB1234180A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181578A (en) * 1978-09-29 1980-01-01 Bethlehem Steel Corporation Leveling bar for coke ovens
US4264263A (en) * 1978-10-10 1981-04-28 Bethlehem Steel Corporation Smoke seal for coke oven pusher machine leveler bar
US4555209A (en) * 1983-06-29 1985-11-26 Bethlehem Steel Corporation Semi-automatic pusher machine leveler bar control and method
US5176489A (en) * 1990-10-29 1993-01-05 Hartung, Kuhn & Co. Maschinenfabrik Gmbh Leveller bar for a coke oven block
US6929719B1 (en) * 1998-07-08 2005-08-16 Dmt Deutsche Montan Technologie Gmbh Leveller bar for coking ovens

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US907818A (en) * 1908-01-10 1908-12-29 Koppers Gmbh Heinrich Horizontally-moving and leveling-rod for horizontal furnaces.
US985266A (en) * 1909-05-20 1911-02-28 Friedrich Aus Der Mark Leveling apparatus for horizontal coke-ovens.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US907818A (en) * 1908-01-10 1908-12-29 Koppers Gmbh Heinrich Horizontally-moving and leveling-rod for horizontal furnaces.
US985266A (en) * 1909-05-20 1911-02-28 Friedrich Aus Der Mark Leveling apparatus for horizontal coke-ovens.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181578A (en) * 1978-09-29 1980-01-01 Bethlehem Steel Corporation Leveling bar for coke ovens
US4264263A (en) * 1978-10-10 1981-04-28 Bethlehem Steel Corporation Smoke seal for coke oven pusher machine leveler bar
US4555209A (en) * 1983-06-29 1985-11-26 Bethlehem Steel Corporation Semi-automatic pusher machine leveler bar control and method
US5176489A (en) * 1990-10-29 1993-01-05 Hartung, Kuhn & Co. Maschinenfabrik Gmbh Leveller bar for a coke oven block
US6929719B1 (en) * 1998-07-08 2005-08-16 Dmt Deutsche Montan Technologie Gmbh Leveller bar for coking ovens

Also Published As

Publication number Publication date
GB1234180A (enrdf_load_stackoverflow) 1971-06-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: RAYMOND KAISER ENGINEERS INC., OAKLAND CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KOPPERS COMPANY, INC.;REEL/FRAME:004292/0615

Effective date: 19840503