Back to results
US 12,150,230 B2Granted
Methods of protecting furnace electrodes with cooling liquid that contains an additive
AssigneeChemtreat, Inc.
InventorsJoseph S. Strasser, Joseph M. Hamnik, James R. Lawson, Alan J. Feller
Life of this patent
Estimating the term…
Abstract
A method for forming a protective antioxidative barrier on the furnace electrodes using a chemically altered cooling liquid containing an antioxidant additive. This method can be applied to electrodes used in electric arc furnaces and ladle metallurgy furnaces. The method can involve spraying the cooling liquid onto the electrode, thereby forming the protective antioxidative barrier and reducing the oxidation of the electrode.
Claims13
A method for protecting a furnace electrode comprising:
- (i) combining at least one antioxidant additive with water to form a chemically modified liquid so that the at least one antioxidant additive is present in the chemically modified liquid in an amount that is in a range of from 10 mg/L to 5,000 mg/L, and wherein the at least one antioxidant has a solubility in water of at least 100 mg/L;
- (ii) supplying the chemically modified liquid to a spray system that is configured to spray an outer surface of the furnace electrode;
- (iii) discharging the chemically modified liquid from the spray system to spray the outer surface of the furnace electrode when the outer surface has a temperature of at least 700° C.;
- and
- (iv) forming a coating on the outer surface of the furnace electrode by evaporating water from the chemically modified liquid that has been sprayed on the outer surface of the furnace electrode.
2 more elements
Dependencies are inferred from the claim text.