Back to results
US 9,849,508 B2Granted
Ladle bottom and ladle
AssigneeRefractory Intellectual Property GmbH & Co. KG
InventorsSarah Kohler, Alexander Maranitsch, Kerry Servos
Life of this patent
Estimating the term…
Abstract
A ladle bottom being part of a metallurgical ladle for treating a metal melt as well as a corresponding metallurgical ladle.
Claims13
Ladle bottom made of a refractory ceramic body with an upper surface, a lower surface and a pouring channel extending between upper surface and lower surface, wherein said pouring channel extends from a diffusor box, being defined by a deepened section of said upper surface, wherein the diffusor box is characterized by the following features:
- a) it is arranged at a horizontal distance to a surface area of the ladle bottom used as an impact area for a metal melt poured onto said ladle bottom,
- b) it has a vertical step at least along its border facing the impact area, wherein said step has a height of between 40 and 200 mm,
- c) it has a minimum horizontal area
- A
- m
-
-
- i
-
-
- n
- =
- Π
- 4
-
- (
- 0.37
-
- r
- )
- 2
- +
- 0.3
- and a maximum horizontal area
- A
- max
- =
- Π
- 4
-
- (
- 0.08
-
- r
- )
- 2
- +
- 0.3
- wherein r=radius of the ladle bottom and r≧0.75 m with rmax=2 m for all ladle bottoms with an effective radius of ≧2 m,
- d) an inlet end of said pouring channel is arranged offset the step along its border facing the impact area.
37 more elements
Dependencies are inferred from the claim text.