Tiltable exchangeable metallurgical vessel and method for fixing and releasing a tiltable metallurgical vessel

Patent metadata

Field	Value
Publication number	US-11168374-B2
Application number	US-201816770426-A
Country	US
Kind code	B2
Filing date	Dec 19, 2018
Priority date	Dec 20, 2017
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

The invention relates to the subject area of metallurgical systems, in particular a metallurgical vessel which is fixed on a support ring. The object of the invention is to provide a metallurgical vessel having a support ring and a method for fixing and releasing, which prevents constraint forces. The tiltable metallurgical vessel having a round cross-section is at least partially surrounded by a support ring. The support ring is at a distance from the metallurgical vessel in the radial direction. The metallurgical vessel has at least three brackets, each having a respective pin. The support ring has at least three receiving openings which receive the pins. These receiving openings permit a shifting of the pin in the radial direction. The pins are secured against falling out of the receiving opening and the bracket by at least three locking devices floatingly mounted and arranged inside the support ring.

First claim

The invention claimed is:

1. A tiltable metallurgical vessel comprising:
a round cross section; and
at least three brackets, each having a respective pin;
wherein the metallurgical vessel is at least partially surrounded by a support ring, and the support ring is at a distance from the metallurgical vessel in the radial direction, the support ring having at least three receiving openings suitable for receiving the pins; and
wherein the receiving openings permit shifting of the pin in a radial direction of the support ring, and there are at least three locking devices arranged entirely inside the support ring and floatingly mounted to allow the locking devices movement at least in the radial direction, the locking devices securing the pins against falling out of the receiving opening and the bracket.

2. The tiltable metallurgical vessel as claimed in claim 1 , wherein:
the pin has a wedge pressure surface;
the floatingly mounted locking devices have a wedge; and
the floatingly mounted locking device is adapted to bring the wedge into connection with the wedge pressure surface to secure the pin against falling out of the receiving opening and the bracket.

3. The tiltable metallurgical vessel as claimed in claim 2 , wherein the wedge pressure surface is one of a lateral passage opening or at least one lateral groove.

4. The tiltable metallurgical vessel as claimed in claim 2 , wherein the floatingly mounted locking device comprises:
a main body with a main body opening, through which the pin can penetrate; and
a cylinder mounted on the main body, the cylinder being connected directly to the wedge.

5. The tiltable metallurgical vessel as claimed in claim 1 , wherein the receiving openings of the support ring are elongate holes.

6. The tiltable metallurgical vessel as claimed in claim 1 , wherein the pin has a dimension in the radial direction of the metallurgical vessel, and the receiving opening is at least twice as large in the radial direction as the dimension of the pin in the radial direction.

7. The tiltable metallurgical vessel as claimed in claim 1 , wherein a distance sleeve, through which the pin projects, is mounted on the bracket.

8. The tiltable metallurgical vessel as claimed in claim 1 , wherein the floatingly mounted locking device has a position monitoring device.

9. The tiltable metallurgical vessel as claimed in claim 8 , wherein the position monitoring device is implemented by means of a pressure measuring device and of a further position monitoring device of the cylinder.

10. The tiltable metallurgical vessel as claimed in claim 1 , wherein the metallurgical vessel has four brackets with pins, the support ring has four receiving openings, and there are four floatingly mounted locking devices inside the support ring.

11. The tiltable metallurgical vessel as claimed in claim 1 , wherein the metallurgical vessel is an argon oxygen converter and has a holding capacity of up to 180 t.

12. A method for fixing the tiltable metallurgical vessel on the support ring claimed in claim 1 , comprising:
connecting the metallurgical vessel to the support ring in such a way that the pins penetrate into the receiving openings as soon as the metallurgical vessel is resting on the support ring; and
securing the metallurgical vessel against falling out of the bracket and of the receiving opening by the floatingly mounted locking devices of each pin.

13. The method as claimed in claim 12 , further comprising continuously monitoring the floatingly mounted locking device by means of a position monitoring device.

14. The method ring as claimed in claim 13 , wherein the floatingly mounted locking device has a wedge for securing the pin, and the wedge is pressed in with a maximum of 75% of the available maximum force that is possible for removing the wedge.

15. The method as claimed in claim 12 , further comprising:
releasing the fixing of pins by the floatingly mounted locking devices; and
lifting the metallurgical vessel off the support ring.

Assignees

• Primetals Technologies Austria GmbH

Inventors

• Kapl Robert
• Lechner Helmut
• Wimmer Gerald

Classifications

• F27B3/065

  tiltable · CPC title

• F27D21/00

  Arrangement of monitoring devices; Arrangement of safety devices · CPC title

• C21C5/4673

  Measuring and sampling devices · CPC title

• C21C5/4633 Primary

  Supporting means · CPC title

• C21C5/464

  Trunnion bearings · CPC title