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US 8,524,145 B2Granted
Method and device for introducing dust into a metal melt of a pyrometallurgical installation
AssigneeSiemens Aktiengesellschaft
InventorsWerner Hartmann, Günter Lins, Thomas Matschullat
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Abstract
A device for introducing dust into a molten bath of a pyrometallurgical installation is provided. An electrodeless plasma torch includes an essentially tubular housing, wherein the housing allows a passage of a carrier gas containing dust particles, and wherein the housing is coaxially surrounded by an inductive load coil which forms a heating zone.
Claims4
A device for blowing dust into a metal melt of a pyrometallurgical installation, comprising:
- an electrodeless plasma torch with an essentially tubular housing,
- wherein an injection tube protrudes centrally into the housing on an inlet side,
- wherein the injection tube is coaxially surrounded by a gas delivery tube,
- wherein the housing allows a passage of a carrier gas containing dust particles,
- wherein the housing is coaxially surrounded by an inductive load coil which forms a heating zone,
- wherein an inductive preheating zone is arranged upstream of the heating zone,
- wherein the inductive preheating zone is formed by a preheating coil located within the gas delivery tube, coaxially surrounding the injection tube.
4 more elements
Dependencies are inferred from the claim text.