IP Library Granted Patent US 9,534,846
Granted Patent B2
US 9,534,846 · App. 14/377,799 · Granted Jan 3, 2017

Method for manufacturing a melt launder and a melt launder

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Quick Facts
Patent No.
US 9,534,846
App. No.
14/377,799
Granted
Jan 3, 2017
Kind
B2
Abstract

The invention relates to a method for manufacturing a melt launder to be used for transferring molten phase such as slag, matte, or metal formed in a process for the production of metals. The invention also relates to a melt launder to be used for transferring molten phase such as slag, matte, or metal formed in a process for the production of metals. The melt launder comprises a launder body of metal, a flow channel for molten phase, a refractory lining for lining the launder body of metal so that the refractory lining at least partly forms a flow surface for molten phase in the flow channel for molten phase, and a layer of steel between the launder body of metal and the refractory lining.

Claims (13)

1. A melt launder, wherein the melt launder comprises

a launder body of metal,

a flow channel for molten phase, and

a refractory lining for lining the launder body of metal so that the refractory lining at least partly forms a flow surface for molten phase in the flow channel,

wherein the melt launder comprises a layer of stainless steel between the launder body of metal and the refractory lining,

wherein the refractory lining being attached to the layer of stainless steel,

wherein the layer of stainless steel being releasable attached to the launder body of metal, and

wherein the layer of stainless steel has a first face that is in contact with the launder body of metal and an opposite second face that is in contact with the refractory lining.

2. The melt launder according to claim 1 , wherein the layer of stainless steel and the launder body of metal being provided with co-operating fasteners for releasable attaching the layer of stainless steel from the launder body of metal.

3. The melt launder according to claim 1 , wherein the launder body of metal being provided with cooling channels for circulating cooling medium in the launder body of metal.

4. The melt launder according to claim 1 , wherein the launder body of metal being at least partly made of copper or copper alloy.

5. The melt launder according to claim 1 , wherein the layer of stainless steel being provided with lifting means for lifting the layer of stainless steel from the launder body of metal to detach the layer of stainless steel to the launder body of metal.

6. The melt launder according to claim 1 , wherein the refractory lining comprising at least one of graphite, insulating refractory material, zirconium-oxide and carbon-based refractory material including carbon, semi-graphite, silicon carbide.

Assignments (5)
DE-MERGER Recorded Oct 3, 2023
From: METSO OUTOTEC FINLAND OY
To: METSO OUTOTEC METALS OY
Reel/Frame 065114/0419 →
CHANGE OF NAME Recorded Oct 3, 2023
From: METSO OUTOTEC METALS OY
To: METSO METALS OY
Reel/Frame 065114/0684 →
MERGER Recorded Jan 6, 2023
From: OUTOTEC (FINLAND) OY
To: METSO MINERALS OY
Reel/Frame 062308/0415 →
CHANGE OF NAME Recorded Jan 6, 2023
From: METSO MINERALS OY
To: METSO OUTOTEC FINLAND OY
Reel/Frame 062308/0451 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 20, 2014
From: HUGG, EERO; PIENIMÄKI, KARI; KETOLA, MIKA; JÅFS, MIKAEL
To: OUTOTEC (FINLAND) OYJ
Reel/Frame 033979/0565 →