Blast lance for gas blowing, its use and method of production
AssigneeImerTech SAS
InventorsKai Hammes, Daniel Hollricher
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Abstract
The present invention relates to blast lances for gas blowing in metallurgical processes, the blast lance comprising a cylindrical lance core and a refractory casing, wherein the said refractory casing comprises n+1 refractory tubular sections and n or more refractory annular structures, wherein each set of two neighbouring refractory tubular sections is connected via a refractory annular structure, and wherein n is an integer of 1 or higher. The invention further relates to the use and method of production of such blast lances.
Claims11
A blast lance for gas blowing in metallurgical processes, the blast lance comprising a cylindrical lance core and a refractory casing, wherein the refractory casing comprises n+1 refractory tubular sections and n or more preformed refractory annular structures, wherein adjacent refractory tubular sections are separated via one of the n or more preformed refractory annular structures, wherein n is an integer of 1 or higher, and wherein
- the refractory annular structures have an outer diameter which corresponds to the outer diameter of the refractory tubular sections, and an inner diameter which corresponds to the inner diameter of the refractory tubular sections.
Dependencies are inferred from the claim text.