Cooling of hot bodies
AssigneeDavy McKee (Stockton) Limited
InventorsDavid Peter Jackaman, William Barry Featherstone
Life of this patent
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Abstract
An apparatus for cooling a vessel containing molten metal has a quantity of liquid coolant atomized by a gaseous medium and onto a surface to be cooled. The supply of gaseous medium is constant while the supply of liquid coolant to the spray nozzles is controlled by at least one valve the operation of which is brought about by a non-electrical temperature responsive element in thermal contact with the surface to be cooled. The rate at which the liquid coolant is sprayed on to the hot surface is controlled such that the volume of coolant sprayed on to the surface to be cooled does not exceed the volume of liquid that is capable of being vaporized from the surface.
Claims9
A method of cooling a hot metal body which forms part of a vessel containing molten metal, comprising the steps of disposing a plurality of spray nozzles in relation to a surface of the body to be cooled;
- arranging a non-electrical temperature responsive element in thermal contact with the surface of the body to be cooled;
- supplying gaseous medium continuously to the nozzles;
- supplying liquid coolant to the nozzles under the control of at least one valve operated by the action of said temperature responsive element for the liquid coolant to be atomised into droplets by the gaseous medium and the droplets to be sprayed onto the surface of the body and said valve being controlled such that the volume of liquid coolant applied to the surface in a given time period does not exceed the volume of liquid coolant which is vaporised by contact with the surface of the hot metal body in the given time period.
A metal body which is to be cooled and which forms part of a vessel containing molten metal, a plurality of spray nozzles disposed in relation to a surface of the body to be cooled;
- a non-electrical temperature responsive element arranged in thermal contact with the surface of the body to be cooled;
- a gaseous medium connected to be supplied continuously to the nozzles;
- means for supplying liquid coolant to the nozzles under the control of at least one valve operated by the action of said temperature responsive element for the liquid coolant to be atomised into droplets by the gaseous medium and the droplets to be sprayed onto the surface of the body and means for controlling said valve such that the volume of liquid coolant applied to the surface in a given time period does not exceed the volume of liquid coolant which is vaporised by contact with the surface of the metal body in the given time period.
Dependencies are inferred from the claim text.