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US 4,655,436 AGranted
Method and apparatus for recovering and reusing energy from a melting furnace
OwnerThomas W. Williamsinventor
Life of this patent
Estimating the term…
Abstract
A heat recovery and storage system for use in connection with a melting furnace. In such system, heat from the exhaust gas of a melting furnace is recovered and used to preheat scrap metal and to maintain such preheated scrap metal in its preheated form until it is charged into the melting furnace.
Claims24
An apparatus for recovering waste heat from a melting furnace and using the same to preheat a subsequent charge comprising:
- a first heat exchanger for transferring heat from the effluent gas of said melting furnace to a heat transfer fluid;
- a heat storage vessel having a housing defining a heat storage chamber and at least one heat maintenance chamber disposed within said heat storage chamber for maintaining a subsequent charge in a preheated condition;
- first conducting means for conducting said heat transfer fluid from said first heat exchanger into said heat storage chamber;
- heat transfer means for transferring heat from said heat transfer fluid to a subsequent charge for preheating the same;
- second conducting means for conducting said heat transfer fluid from said heat storage chamber to said heat transfer means;
- and
- third conducting means for conducting said heat transfer fluid from said heat transfer means to said first heat exchanger.
4 more elements
A method of recovering waste heat from a melting furnace and using the same to preheat a subsequent charge comprising the steps of:
- transferring heat from the effluent gas of said melting furnace to a heat transfer fluid;
- conducting said heat transfer fluid to a heat storage chamber;
- maintaining a first preheated charge in such preheated condition in a heat maintenance chamber within said heat storage chamber;
- conducting said heat transfer fluid from said heat storage chamber to a heat transfer means;
- preheating a second charge in said heat transfer means by transferring heat from said heat transfer fluid to said charge;
- and
- transferring the second preheated charge to said heat maintenance chamber.
4 more elements
Dependencies are inferred from the claim text.