Pyrometallurgical reactor cooling element and its manufacture
AssigneeOutokumpu Oyj
InventorsEero Hugg, Ilkka Kojo, Pertti Mäkinen, Raimo Koota
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Abstract
The invention relates to a method of fabricating a pyrometallurgical reactor cooling element with flow channels. In order to enhance heat transfer capability, the wall surface area of the flow channel, which is traditionally round in cross-section, is increased without increasing the diameter or length of the channel.
Claims5
A method for enhancing the heat transfer capability of a pyrometallurgical reactor cooling element with a cooling water flow channel, fabricated of highly thermal conductive metal, comprising:
- forming the cooling element of a wrought copper plate;
- machining into the cooling element at least one cooling water flow channel comprised of a plurality of straight channel parts, at least one of said flow channel parts being transverse to another of said flow channel parts, each of said flow channel parts being essentially round in cross-section;
- and
- subsequently machining threads or rifle-like grooves on the inner surface of each flow channel part to increase the wall surface area of the flow channel part inside the cooling element without increasing the diameter or length of each flow channel.
A method for enhancing the heat transfer capability of a pyrometallurgical reactor cooling element with a cooling water flow channel, fabricated of highly thermal conductive metal, comprising forming the cooling element of a wrought copper plate;
- machining at least one cooling water flow channel that is essentially round in cross-section into the cooling element;
- and subsequently machining threads or rifle-like grooves on the inner surface of the flow channel to increase the wall surface area of the flow channel inside the cooling element without increasing the diameter or length of the flow channel.
Dependencies are inferred from the claim text.