Suspension device for tilting oxygen converters and converter provided with said suspension device

Patent metadata

Field	Value
Publication number	US-9783863-B2
Application number	US-201314402293-A
Country	US
Kind code	B2
Filing date	May 20, 2013
Priority date	May 21, 2012
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A suspension device ( 8 ) for a converter, comprising a central structure ( 8 ′), adapted to be fixed to a container ( 2 ) of the converter ( 1 ), a first lateral structure ( 29 ), arranged at a first side of the central structure and adapted to be fixed to a first surface ( 10, 11 ) of a supporting ring ( 3 ) of the container, a second lateral structure ( 28 ), arranged at a second side of said central structure and adapted to be fixed to the surface ( 10, 11 ), wherein two wedge-shaped elements ( 15, 15 ′) are provided, each element being provided between the central structure and a respective lateral structure and configured so as to slide on sliding surfaces ( 23, 24, 24 ′) connected respectively to the central structure and to the respective lateral structure, wherein each wedge-shaped element is crossed by at least one tie-rod ( 16, 16 ′) connected thereto, and wherein elastic means ( 17 ) are provided, which are associated to or intrinsic with said one tie-rod and configured to maintain a wedging of the wedge-shaped element.

First claim

The invention claimed is:

1. A suspension device for a tilting converter, comprising:
a central structure, adapted to be fixed to a container of the tilting converter,
a first lateral structure, arranged at a first side of said central structure and adapted to be fixed to a first surface of a supporting ring of the container,
a second lateral structure, arranged at a second side of said central structure, opposite said first side, and adapted to be fixed to said first surface of the supporting ring,
wherein two wedge-shaped elements are provided, each wedge-shaped element being arranged between the central structure and a respective lateral structure and configured so as to slide on two sliding surfaces of the central structure and of the respective lateral structure, respectively,
wherein at least one tie-rod passes through a respective wedge-shaped element and has a first end thereof restrained to said respective wedge-shaped element,
wherein elastic means associated to said at least one tie-rod or wherein said at least one tie-rod with its intrinsic elasticity are configured to produce a constant wedging of the wedge-shaped element between the central structure and the respective lateral structure whereby, when the suspension device is mounted to the container and to the supporting ring, the wedge-shaped element advances forwards or backwards with respect to the supporting ring as expansions produced between central structure and lateral structures vary during the operation of the converter,
and wherein between the central structure and each wedge-shaped element there is provided a pair of spacers, having reciprocally adjacent, joined, substantially spherical-bowl-shaped surfaces, wherein an inner spacer of said pair of spacers is integrally fixed to the central structure while an outer spacer of said pair of spacers is interposed between the inner spacer and the wedge-shaped element and defines, with an outermost flat surface thereof, a first sliding surface for the wedge-shaped element.

2. A suspension device according to claim 1 , wherein the elastic means, associated to said at least one tie-rod, are placed at one end of the tie-rod.

3. A suspension device according to claim 2 , wherein a first end of the tie-rod is connected to the wedge-shaped element and the tie-rod has a predetermined longitudinal extension whereby it can pass through the supporting ring and has a second end, provided with a housing containing said elastic means, adapted to be arranged outside the supporting ring in proximity of a second surface thereof, opposite said first surface.

4. A suspension device according to claim 3 , wherein a closing plate of the housing is provided, arranged between the elastic means and the tightening nuts of the second end of the tie-rod, whereby the elastic means acting on said closing plate allow a translation of the tie-rod and therefore a sliding of the wedge-shaped element.

5. A suspension device according to claim 2 , wherein the tie-rod is integrally fixed at a first end thereof to the corresponding lateral structure and said elastic means are restrained to a second end of the tie-rod and placed in a housing made on the wedge-shaped element, whereby the elastic means can act directly on the wedge-shaped element, thus causing it to slide.

6. A suspension device according to claim 5 , wherein a closing plate of the housing is provided, arranged between the elastic means and the tightening nuts of the second end of the tie-rod.

7. A suspension device according to claim 3 , wherein said second end of the tie-rod passes through both the housing and the elastic means contained therein.

8. A suspension device according to claim 5 , wherein said second end of the tie-rod passes through both the housing and the elastic means contained therein.

9. A suspension device according to claim 1 , wherein a further spacer is provided between the lateral structures and each wedge-shaped element, said further spacer being integrally fixed to the respective lateral structure and defines, with an innermost surface thereof, a second sliding surface for the wedge-shaped element.

10. A suspension device according to claim 9 , wherein the tie-rods have a first end thereof fixed within the further spacers, and pass through only one portion of the wedge-shaped element with a second end thereof.

Assignees

• Danieli Off Mecc

Inventors

• Poloni Alfredo
• Nobile Matteo

Classifications

• C21C5/50 Primary

  Tilting mechanisms for converters · CPC title

• C21C5/4633

  Supporting means · CPC title

• F27B3/065

  tiltable · CPC title