US 4,335,870 AGranted

Cooling element for use in metallurgical furnaces

AssigneeHoesch Werke Aktiengesellschaft

InventorsArnulf Diener, Walter Laucht, Eugen Icking

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Abstract

A cooling element for use in metallurgical furnaces, such as blast furnaces, and a method of making the same. The cooling element is composed of a cast-steel body having a surface which in use faces the interior of the respective furnace and which is provided with elements of refractory material. Embedded in the cast-steel body are steel tubes through which cooling medium is to be circulated when the element is in use. Embedded between the respective tubes are heat-absorbing members which are preferably of the same or an analogous material as the cast-steel body itself and which have the purpose of absorbing the temperature differential between the liquidous point of the steel melt and the superheated temperature at which the melt is cast.

Claims7

Dependent claims

A cooling element for use in metallurgical furnaces, comprising a body of steel cast at a temperature above the liquidous point and having a surface adapted to face inwardly of the furnace;

a pluralitiy of steel tubes embedded in said body and adapted to have cooling fluid circulated through them;
and means embedded in said body spaced from said steel tubes and operative for absorbing, during the casting of said body, the temperature differential which arises between the casting temperature and the liquidous point;
said means comprising steel members to absorb heat for preventing melting of said steel tubes during casting of said body;
said steel tubes forming channels for conducting said cooling fluid, said steel tubes preventing development of cracks in walls of said channels from defects and cracks which may be present in said cast body.

1 more element

Dependencies are inferred from the claim text.