US3586305A - Furnace tapping system - Google Patents

Furnace tapping system Download PDF

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Publication number
US3586305A
US3586305A US785140A US3586305DA US3586305A US 3586305 A US3586305 A US 3586305A US 785140 A US785140 A US 785140A US 3586305D A US3586305D A US 3586305DA US 3586305 A US3586305 A US 3586305A
Authority
US
United States
Prior art keywords
platform
furnace
ladle
contents
ladles
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
US785140A
Other languages
English (en)
Inventor
Arthur E Smith
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.)
Elkem Metals Co LP
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of US3586305A publication Critical patent/US3586305A/en
Assigned to ELKEM METALS COMPANY, A NEW YORK GENERAL PARTNERSHIP reassignment ELKEM METALS COMPANY, A NEW YORK GENERAL PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE CORPORATION, A NY CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/19—Arrangements of devices for discharging

Definitions

  • a movable platform system for tapping a smelt- Field Search 266/1 ing furnace is provided.
  • the platform carries empty ladles to 34, 36 P1 42; 13/10 33 the furnace and after they are filled, the platform is withdrawn 56 R i cud and the ladies are removed and replaced.
  • the platform is conl l e canoes I structed so as to encircle at least one-fourth of the furnace UNITED STATES PATENTS periphery so that a plurality of ladles can be placed around the 2,890,951 6/ 1959 Roy 266/38 furnace at the same time.
  • the invention comprises a movable platform system which is periodically reciprocated between a position adjacent the furnace and a position spaced from the furnace.
  • the platform system suitably includes a platform which is large enough to carry at least one ladle.
  • the platform is mounted on wheels and is moved along rails as it reciprocates.
  • a crane is positioned over the platform to remove and replace the filled ladles.
  • a second platform mounted vertically above the basic platform can be employed to carry auxiliary equipment such as a rodding machine which is used to assist in the removal of the metal from the furnace tapping holes and a plugging machine for plugging the tap hole or a combination machine for both operations.
  • the operation of the system is relatively simple and quite ef- I ficient.
  • the fully constructed platform is placed on rails which extend in a straight line toward the furnace.
  • An overhead crane loads several ladles on the platform in positions which correspond to the furnace tapping hole positions.
  • Motor means within the platform are then activated to drive the platform toward the furnace until it is adjacent and almost contiguous with the furnace.
  • the tap holes of the furnace are then stimulated in the normal manner by a lance or other device such as a rodding machine to ease the flow of metal from the furnace.
  • a lance or other device such as a rodding machine to ease the flow of metal from the furnace.
  • a second platform 26 is vertically positioned above platform .10 and serves as a support for rodding and/or plugging machines-28.
  • the platform 26 is high enough to maintain the rod or lance 30 at the level of tapping hole 20.
  • a furnace operating floor 32 projects from the furnace above the platform 26 and stairways 34, 35 are placed between platforms 10, 26 so that equipment operators can readily obtain access to the system components.
  • FIG. 2 illustrates the platform system in a tapping position adjacent the furnace 22.
  • the platform 10 is large enough to encircle a sizeable portion of the furnace thereby enabling several ladles l7, I8, 19 and 21 to be positioned about the periphery of the fumace. This 7 facilitates the tapping procedure since the furnace can rotate or oscillate to fill the several ladles before the platform is withdrawn.
  • the platform 10 should be wide enough to encircle at least one-fourth of the outer periphery of the furnace for best operating results.
  • the rodding machine 28 is slidably positioned on curved tracks or rails-40 which enable itto move in an are about the furnace to essentially follow the .tap holes in the rotating furnace.
  • the rodding and/or plugging machine may be moved about the platform by the overhead crane for proper positioning withrespect to the furnace tap hole.
  • Such a construction ensures that proper tapping will occur at virtually any position within the arc of travel.
  • the rodding machine is able to travel in an arc of or more with a properly sized platform 26.
  • the broken away portion of platform 26 shows the drive mechanism which is suitably employed in the system.
  • a plurality of straight parallel rails 41, 42, 43, 44 carry the assembly as it travels between positions by means of wheels such as ll, l3, l5, 16.
  • Drive wheels 46, 48 are powered by motor means 50, gearing means 52 and drive shaft 54.
  • the entire driving mechanism is operated at a control panel which is placed either on the platform itself or at some remote position in the plant or factory.
  • the motor can be operated from the normal factory supply lines or even can be battery controlled.
  • EXAMPLE A circular furnace measuring 35 feet in diameter oscillated through a 240 range of rotation during operation and was equipped with four tapping holes spaced approximately 60 apart along the arc of rotation.
  • a platform measuring 52 feet in width and designed substantially as shown in FIG[ 2 (numeral 10) was positioned adjacent the furnace. The platform by its curved contour was able to encircle about one-third of the furnace periphery and five ladles each having a capacity of cubic feet were spaced about the furnace on the platform. The ladles covered about l00 of the furnace periphery and this represented the platform tapping range capability.
  • the platform was mounted on wheels aligned in four columns and situated on four parallel straight rails embedded in the factory floor.
  • Each of the outer wheel columns had five wheels plus a drive wheel while the inner columns contained only four wheels.
  • the platform was actually divided into two segments which were joined by a coupler link and pin. The forward segment carried the ladles and measured 18 feet in length.
  • a second platform was positioned approximately 7 feet above the lower platform and secured to the second segment thereof, it being recessed from the furnace as shown in the drawings (numeral 26).
  • the upper platform was 56% feet wide and equipped with two curved rails 6 feet apart for carrying a rodding machine which rotated about the curved upper platform on the rails to aid in the tapping operation.
  • the overall platform length was about 40 feet with the upper platform and second segment of the lower platform being about 29 feet in length.
  • the platforms were withdrawn from the furnace by a 20 horsepower motor and traveled 27 feet along the rails to a position beneath an overhead crane.
  • the filled ladles were removed and five empty ladles positioned about the lower platform. Approximately 2 hours were required to complete the procedure.
  • movable platform system of the invention can be appreciably modified without departing from the scope of the invention.
  • any other suitable means to move the platform relative to the furnace may be employed.
  • the tapping range may be increased or decreased.
  • Other platform shapes, sizes and structures may be employed without adversely affecting the basic inventive concept.
  • ladles may be placed at each end of the platform and when one group is filled, they can be rotated to a position where the ladles can be removed while the empty ladles are rotated into tapping position.
  • the system of the invention provides a much needed solution to the problems encountered in furnace tapping operation.
  • the system is efficient, economical and easily adapted for various design considerations.
  • a movable platform system for facilitating the removal of the contents of a smelting furnace comprising, in combination,
  • ladle means positioned on said first platform for receiving the contents of said furnace
  • a movable platform system for facilitating the removal of the contents of a smelting furnace comprising, in combination,
  • a platform positioned proximate said furnace and structured such that it encloses at least one-fourth of the outer periphery of said furnace;
  • a plurality of ladle means positioned on said platform for receiving the contents of said furnace at various positions about the periphery of the furnace;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Mushroom Cultivation (AREA)
US785140A 1968-12-19 1968-12-19 Furnace tapping system Expired - Lifetime US3586305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78514068A 1968-12-19 1968-12-19

Publications (1)

Publication Number Publication Date
US3586305A true US3586305A (en) 1971-06-22

Family

ID=25134568

Family Applications (1)

Application Number Title Priority Date Filing Date
US785140A Expired - Lifetime US3586305A (en) 1968-12-19 1968-12-19 Furnace tapping system

Country Status (8)

Country Link
US (1) US3586305A (de)
JP (1) JPS4916690B1 (de)
BE (1) BE743168A (de)
CA (1) CA922513A (de)
DE (1) DE1961577C3 (de)
LU (1) LU60032A1 (de)
NO (1) NO134637C (de)
SE (1) SE361936B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130045070A1 (en) * 2009-09-25 2013-02-21 Steven K. Waisanen Cask handling system and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5150607U (de) * 1974-10-17 1976-04-17
US4037828A (en) * 1975-10-04 1977-07-26 Nippon Carbide Kogyo Kabushiki Kaisha Automatic tapping machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130045070A1 (en) * 2009-09-25 2013-02-21 Steven K. Waisanen Cask handling system and method
US9824781B2 (en) * 2009-09-25 2017-11-21 Mhe Technologies, Inc. Cask handling system and method

Also Published As

Publication number Publication date
NO134637C (de) 1976-11-17
DE1961577B2 (de) 1973-10-11
BE743168A (de) 1970-06-15
SE361936B (de) 1973-11-19
DE1961577C3 (de) 1974-05-09
DE1961577A1 (de) 1970-08-27
LU60032A1 (de) 1970-06-17
JPS4916690B1 (de) 1974-04-24
NO134637B (de) 1976-08-09
CA922513A (en) 1973-03-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ELKEM METALS COMPANY, A NEW YORK GENERAL PARTNERSH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION, A NY CORP.;REEL/FRAME:003882/0761

Effective date: 19810626

Owner name: ELKEM METALS COMPANY, 270 PARK AVENUE, NEW YORK, N

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION, A NY CORP.;REEL/FRAME:003882/0761

Effective date: 19810626