CA1274800A - Elevated swinging device for placing slag retention devices in tapping converters - Google Patents
Elevated swinging device for placing slag retention devices in tapping convertersInfo
- Publication number
- CA1274800A CA1274800A CA000520068A CA520068A CA1274800A CA 1274800 A CA1274800 A CA 1274800A CA 000520068 A CA000520068 A CA 000520068A CA 520068 A CA520068 A CA 520068A CA 1274800 A CA1274800 A CA 1274800A
- Authority
- CA
- Canada
- Prior art keywords
- support member
- converter
- tubular device
- swingable support
- tap hole
- 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 - Fee Related
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Apparatus for placing a slag retaining device in a tap hole in a converter comprising a two-part boom extensible into said converter, a swingable support member pivotally attached at a top end thereof to and suspended from an overhead support structure, a device attached to the overhead support structure and to the swingable support member for moving the swingable support member in a vertical plane on a first arcuate path from a first vertical position adjacent said converter to a second position angular position away from said converter, a tubular device positioned on the swingable support member, one part of said two-part boom being positioned in said tubular device, apparatus for moving said one part of said boom tele-scopically with respect to said tubular device, a second device attached to the swingable support member and to said tubular device for moving said tubular device in a second arcuate path, jaws on one end of one part of said two-part boom for detachably engaging said slag retaining device whereby said slag retaining device can be oriented to be aligned with the converter tap hole.
Apparatus for placing a slag retaining device in a tap hole in a converter comprising a two-part boom extensible into said converter, a swingable support member pivotally attached at a top end thereof to and suspended from an overhead support structure, a device attached to the overhead support structure and to the swingable support member for moving the swingable support member in a vertical plane on a first arcuate path from a first vertical position adjacent said converter to a second position angular position away from said converter, a tubular device positioned on the swingable support member, one part of said two-part boom being positioned in said tubular device, apparatus for moving said one part of said boom tele-scopically with respect to said tubular device, a second device attached to the swingable support member and to said tubular device for moving said tubular device in a second arcuate path, jaws on one end of one part of said two-part boom for detachably engaging said slag retaining device whereby said slag retaining device can be oriented to be aligned with the converter tap hole.
Description
ELEVATED SWINGING DEVICE FOR PLACING SLAG RETENTION
DEVICES IN TAPPING CONVERTERS
Back~round of the Invention Technical Field:
This invention relates to an elevated device for accurately and forcibly positioning a slag retaining closure or dart in a tapping converter during the tapping of steel therefrom.
Description of the Prior Art:
Prior structures of this type are best represented by the disclosures of U.S. Patents 3,459,209 of Aug. 5, 1969 to H. Kobusch, et al. and 4,431,169 of Feb. 14, 1984 to Fuzii, et al.
in which closures are positioned in converters by arms adjustably and movably mounted adjacent the converters and which release-ably hold the closures.
Summary of the Invention The present invention utilizes a two-part extensible boom similar to the arms of the prior ar-t patents and provides a swingable device pivoted to an overhead support for telescopi-cally holding the boom and means for moving the device in an arcuate path on a vertical plane and in tilting relation to the overhead support. The device enables the opera-tor to ~7f~
easily and quickly position a slag retaining closu-re or dart in the tap hole of the converter where it prevents slag on the -top o:f the molten steel from entering the tap hole when the s-teel has substantially drained there-through.
Description of the Drawings The drawing figure is a side elevation o-f the elevated swinging device for placing slag retention devices in tapping converters, a portion of an operating -floor therebelow and a portion o:E a converter with parts broken away and parts in cross section.
Description of the Preferred Embodiment By referring to the Figure of the drawings, the inven-tion can be seen wherein a tubular device 33 is pivotally secured to the lower end of a swingable support member 34 that is pivotally secured at its upper end to a sui.table overhead structure 35 adjacent a -tapping conver-ter 50 and above an operating floor 49. A piston and cylinder assembly 36 is pivotally attached by a pivot bracket 37 to the swingable support member 34 and to the tubular device 33 by a pivot bracket 38 so that actuation of the piston and cylinder assembly 36 as -erom a remote control point will tilt the tubular device 33 relative to the lower end O-e the swingable suppor-t member 34.
A secondary piston and cylinder assembly 39 is pivotally attached to a pivot bracket 40 on the overhead structure 35 and to a pivot bracket 41 on the swingable suppor-t member 34 so that the swingable support member 34 is movable in an arcuate path on a vertical plane toward and away erom the converter 50 from the position shown in solid lines in the drawing to the alternate positions shown in broken lines in the drawing.
A boom 42 extends through and is held by the tubular device 33 on the lower end of the swingable support member 34 and an air motor drive mechanism 43 is positioned on one end o e the tubular device 33 and arranged to drive a pinion gear 44 which is engaged on a gear rack 45 secured to the lower portion O:e the boom 42. A replaceable boom portio~ 46 has jaws 47 in the outermost end thereo-e which are actuated by a device for imparting movement thereto,which device is mounted in -the tubular device 33 and remo-tely controlled.
The jaws 47 are adap-ted to releaseably engage a slag retaining closure or dart 48.
In operation, the support member 34 can be moved in a swinging motion in an arcuate path based on a pivotal a-ttach-Inent to the overhead structure 35 so that the tubular device33 moves -toward and away from the conver-ter 50 and to an elevated position substantially above the operating floor 49 in front of the converter 50. It will be seen that the boom 42 can be extended and retracted relative to the tubular device 33 and the swingable support member 34 by rotation of the pinion gear 44 relative to the rack 45. The swingable support member 34 is moved by the secondary piston and cylinder assembly 39 and the -tubular device 33 moved by the piston and cylinder assembly 36 from the position shown in unbroken lines in the drawing to the optional position shown in broken li~es in the drawing.
It will thus be seen that movement o-f the several par-ts of the apparatus will position the tubular device 33 and the boom 42 in position A shown in broken lines well above the operating floor 49 opposite the conver-ter 50 so that it 7 ~ 4~
will no-t interfere with the operator's ac-tivities on the operating floor 49.
It will be appreciated that the device of the invention is important to the steel making industry in supplying the demand ior slag-iree steel which necessitates blocking the ilow oi slag from a steel produci.ng furnace or converter when most o~ the molten steel has been removed and the layer o~ slag which normally iloats on the s-teel is approaching the tap hole.
~laving thus described our invention, wha-t we clai~ is:
, . .. .
DEVICES IN TAPPING CONVERTERS
Back~round of the Invention Technical Field:
This invention relates to an elevated device for accurately and forcibly positioning a slag retaining closure or dart in a tapping converter during the tapping of steel therefrom.
Description of the Prior Art:
Prior structures of this type are best represented by the disclosures of U.S. Patents 3,459,209 of Aug. 5, 1969 to H. Kobusch, et al. and 4,431,169 of Feb. 14, 1984 to Fuzii, et al.
in which closures are positioned in converters by arms adjustably and movably mounted adjacent the converters and which release-ably hold the closures.
Summary of the Invention The present invention utilizes a two-part extensible boom similar to the arms of the prior ar-t patents and provides a swingable device pivoted to an overhead support for telescopi-cally holding the boom and means for moving the device in an arcuate path on a vertical plane and in tilting relation to the overhead support. The device enables the opera-tor to ~7f~
easily and quickly position a slag retaining closu-re or dart in the tap hole of the converter where it prevents slag on the -top o:f the molten steel from entering the tap hole when the s-teel has substantially drained there-through.
Description of the Drawings The drawing figure is a side elevation o-f the elevated swinging device for placing slag retention devices in tapping converters, a portion of an operating -floor therebelow and a portion o:E a converter with parts broken away and parts in cross section.
Description of the Preferred Embodiment By referring to the Figure of the drawings, the inven-tion can be seen wherein a tubular device 33 is pivotally secured to the lower end of a swingable support member 34 that is pivotally secured at its upper end to a sui.table overhead structure 35 adjacent a -tapping conver-ter 50 and above an operating floor 49. A piston and cylinder assembly 36 is pivotally attached by a pivot bracket 37 to the swingable support member 34 and to the tubular device 33 by a pivot bracket 38 so that actuation of the piston and cylinder assembly 36 as -erom a remote control point will tilt the tubular device 33 relative to the lower end O-e the swingable suppor-t member 34.
A secondary piston and cylinder assembly 39 is pivotally attached to a pivot bracket 40 on the overhead structure 35 and to a pivot bracket 41 on the swingable suppor-t member 34 so that the swingable support member 34 is movable in an arcuate path on a vertical plane toward and away erom the converter 50 from the position shown in solid lines in the drawing to the alternate positions shown in broken lines in the drawing.
A boom 42 extends through and is held by the tubular device 33 on the lower end of the swingable support member 34 and an air motor drive mechanism 43 is positioned on one end o e the tubular device 33 and arranged to drive a pinion gear 44 which is engaged on a gear rack 45 secured to the lower portion O:e the boom 42. A replaceable boom portio~ 46 has jaws 47 in the outermost end thereo-e which are actuated by a device for imparting movement thereto,which device is mounted in -the tubular device 33 and remo-tely controlled.
The jaws 47 are adap-ted to releaseably engage a slag retaining closure or dart 48.
In operation, the support member 34 can be moved in a swinging motion in an arcuate path based on a pivotal a-ttach-Inent to the overhead structure 35 so that the tubular device33 moves -toward and away from the conver-ter 50 and to an elevated position substantially above the operating floor 49 in front of the converter 50. It will be seen that the boom 42 can be extended and retracted relative to the tubular device 33 and the swingable support member 34 by rotation of the pinion gear 44 relative to the rack 45. The swingable support member 34 is moved by the secondary piston and cylinder assembly 39 and the -tubular device 33 moved by the piston and cylinder assembly 36 from the position shown in unbroken lines in the drawing to the optional position shown in broken li~es in the drawing.
It will thus be seen that movement o-f the several par-ts of the apparatus will position the tubular device 33 and the boom 42 in position A shown in broken lines well above the operating floor 49 opposite the conver-ter 50 so that it 7 ~ 4~
will no-t interfere with the operator's ac-tivities on the operating floor 49.
It will be appreciated that the device of the invention is important to the steel making industry in supplying the demand ior slag-iree steel which necessitates blocking the ilow oi slag from a steel produci.ng furnace or converter when most o~ the molten steel has been removed and the layer o~ slag which normally iloats on the s-teel is approaching the tap hole.
~laving thus described our invention, wha-t we clai~ is:
, . .. .
Claims (3)
1. Apparatus for placing a slag retaining device in a tap hole in a converter comprising a two-part boom extensible into said converter, a swingable support member pivotally attached at a top end thereof to and suspended from an overhead support structure, extensible means attached at one end to said overhead support structure and at another end to said swingable support member at a location spaced from said swingable support member top end for moving said swingable support member in a vertical plane on a first arcuate path based on said pivotal attachment to said overhead support structure from a first vertical position adjacent said converter to a second angular position away from said converters, a tubular device pivotally positioned on a lower end of said swingable support member, one part of said two-part boom being positioned in said tubular device, means on said tubular device for moving said one part of said boom telescopically with respect to said tubular device, extendable means having one end attached to said swingable support member and another end attached to said tubular device for moving said tubular device in a second arcuate path in said vertical plane based on said pivotal attachment of said tubular device to said swingable support member, means on one end of the other part of said two-part boom for detachably engaging said slag retain-ing device, said slag retaining device moving in said vertical plane and remaining in said vertical plane during storage whereby said slag retaining device can be oriented to be aligned with the converter tap hole and moved into and out of a tap hole plugging position without disturbing that alignment and can be in a stored condition above an operating floor while remain-ing aligned with the tap hole.
2. The apparatus for placing a slag retaining device in a tap hole in a converter set forth in claim 1 and wherein said means on said swingable support member for moving said tubular device comprises a piston and cylinder assembly and remote means for powering and controlling the same.
3. The apparatus for placing a slag retaining device in a tap hole in a converter set forth in claim 1 and wherein said extensible means on said overhead support structure for swinging the swingable support member toward and away from said converter comprises a piston and cylinder assembly and remote means for powering and controlling the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000520068A CA1274800A (en) | 1986-10-08 | 1986-10-08 | Elevated swinging device for placing slag retention devices in tapping converters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000520068A CA1274800A (en) | 1986-10-08 | 1986-10-08 | Elevated swinging device for placing slag retention devices in tapping converters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1274800A true CA1274800A (en) | 1990-10-02 |
Family
ID=4134114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000520068A Expired - Fee Related CA1274800A (en) | 1986-10-08 | 1986-10-08 | Elevated swinging device for placing slag retention devices in tapping converters |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1274800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834596A (en) * | 2016-12-15 | 2017-06-13 | 武汉钢铁股份有限公司 | Converter taphole whole process skimming device |
-
1986
- 1986-10-08 CA CA000520068A patent/CA1274800A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834596A (en) * | 2016-12-15 | 2017-06-13 | 武汉钢铁股份有限公司 | Converter taphole whole process skimming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |