Bumper guard for steel converting apparatus enclosure
AssigneePennsylvania Engineering Corporation
InventorJoseph Ziegler
Life of this patent
Estimating the term…
Abstract
An open topped vessel for converting molten ferrous metal to steel is pivotal about a horizontal axis and has bottom tuyeres for blowing oxygen or other gases upwardly through molten metal contained therein. An enclosure at least partially surrounds the vessel and cooperates with a smoke hood to prevent the escape of pollutants when the vessel is in a generally vertical gas blowing position. The vessel is pivotable about a horizontal axis to position its open top adjacent an access door in the enclosure whereby the vessel may be charged with hot metal from a ladle or with scrap from a charging chute. A pair of bumpers are positioned adjacent the access door support beams to prevent damage thereto by the charging apparatus.
Claims11
A stationary enclosure for a pivotally mounted metallurgical vessel, said enclosure including:
- a side wall and
- an access opening formed in said enclosure whereby said vessel may be charged with metal from metal conveying means movable in a first direction toward said enclosure,
- door means movably mounted relative to said opening for selectively closing the same,
- support means,
- arm means pivotally mounted on said support means for movement in said first direction, bumper means mounted adjacent said door means, said bumper means including shield means mounted on said arm means and having plate means provided with a first surface facing in a direction opposite to said first direction, said shield means having an initial position and being mounted for limited movement in said first direction as said arm means pivots,
- and shock absorber means disposed adjacent said shield means and being positioned, constructed and arranged for resisting pivotal movement of said arm means in said first direction as a result of engagement of said plate means by said conveyer means,
- said shock absorber means being operative for absorbing impact energy resulting from the engagement of said conveying means with said shield means and for yielding to permit movement of said shield means in said first direction and for restoring said shield means to an initial position.
A stationary enclosure for a pivotally mounted metallurgical vessel having a charging mouth, said enclosure including a top disposed above said vessel and side wall means extending downwardly adjacent said vessel,
- an access opening formed in said side wall means whereby said vessel may be tilted to position said mouth adjacent said access opening for being charged with metal from metal conveying means movable in a first direction toward said enclosure,
- door means movably mounted relative to said opening for selectively closing the same,
- and bumper means mounted adjacent said door means, said bumper means including shield means having a first side facing in a direction opposite to said first direction, support means, said shield means having an initial position and being mounted on said support means for limited pivotal movement in said first direction upon being impacted by the conveyor means,
- and shock absorber means mounted adjacent said shield means and constructed and arranged for resisting movement of said shield means in said first direction, said shock absorber means being operative for absorbing impact energy resulting from the engagement of said conveying means with said shield means and for yielding to permit movement of said shield means in said first direction and for restoring said shield means to its initial position.
An enclosure for a pivotally mounted metallurgical vessel having a charging mouth, said enclosure including a top disposed above said vessel and side wall means extending downwardly adjacent said vessel,
- an access opening formed in the side wall means of said enclosure whereby said vessel may be tilted to position said mouth adjacent said access opening for charging with metal from metal conveying means movable in a first direction toward said enclosure,
- door support means mounted adjacent said opening,
- door means mounted on said door support means for movement relative to said opening for selectively closing the same,
- and bumper means mounted on the opposite side of said door support means relative to said enclosure, said bumper means including shield means having a first side facing in a direction opposite to said first direction, said shield means having an initial position and being mounted on said support means for limited pivotal movement in said first direction,
- and resilient means mounted adjacent the opposite side of said shield means and constructed and arranged for resisting movement of said shield means in said first direction, said resilient means being operative for absorbing impact energy resulting from the engagement of said conveying means with said shield means and for yielding to permit movement of said shield means in said first direction and for restoring said shield means to an initial position.
Dependencies are inferred from the claim text.