Apparatus for descaling metal strip
AssigneeKolene Corporation
InventorsJohn M. Cole, Charles M. Bessey
Life of this patent
Estimating the term…
Abstract
A system for descaling a strip of metal includes a nozzle assembly mounted within a spray box for spraying descaling product on the strip. The nozzle assembly includes a spray chamber; nozzles mounted directly to the spray chamber; and a heater for heating the chamber, the descaling product in the chamber, and the nozzles by conduction through the chamber. The nozzles are oriented to direct the descaling product in a spray against the upper and lower surfaces of the metal strip for an amount and a time sufficient to descale the metal strip. The nozzle assembly is attached to the spray box and can be easily removed therefrom for inspection.
Claims19
An apparatus for descaling a strip of metal having upper and lower surfaces moving in a metal processing line, comprising:
- a chamber for containing a molten descaling product,
- means for heating the chamber and for heating the descaling product in said chamber to a consistency in which the descaling product can be applied through a nozzle device, and
- a first nozzle device fluidly connected to and in heat exchange relationship with said chamber, said first nozzle device being heated by the chamber and being oriented to direct the molten descaling product from the chamber against one surface of the metal strip to descale the surface of the metal strip.
A system for descaling a strip of metal having upper and lower surfaces traveling at a predetermined speed in an annealing line of a production facility, comprising:
- a spray box through which the strip of metal passes,
- a chamber mounted at least partially within said spray box for receiving and storing a molten descaling product,
- means to heat the chamber and to heat the descaling product in said chamber to a consistency in which the descaling product can be applied through a nozzle device, and
- a first nozzle device fluidly connected to and in heat exchange relationship with said chamber, said first nozzle device being heated by the chamber and being oriented to direct the molten descaling product from the chamber in a spray against one surface of the metal strip as the strip passes through the spray box to descale the surface of the metal strip.
A descaling system for descaling a strip of metal having upper and lower surfaces in an annealing line, comprising:
- a spray box through which the strip of metal passes in the annealing line,
- a nozzle assembly removably mounted to said spray box, said nozzle assembly including:
- a chamber for containing a molten descaling product,
- heating means to heat the descaling product in said chamber to a consistency in which the descaling product can be applied through a nozzle device, said heating means being mounted to said chamber, and
- a nozzle device mounted directly to said chamber, said nozzle device being oriented to direct the molten descaling product from the chamber against a surface of the metal strip as the strip passes through the spray box to descale the surface of the metal strip,
- said chamber being removable from said spray box to allow inspection and/or replacement of said nozzle device and said heating means if said nozzle device and said heating means become damaged or clogged.
A descaling system for descaling a strip of metal having upper and lower surfaces in an annealing line, comprising:
- a spray box through which the strip of metal passes in the annealing line,
- a nozzle assembly removably mounted to said spray box, said nozzle assembly including:
- a chamber for containing a molten descaling product, the descaling product consisting essentially of sodium and potassium hydroxide eutectic with about 10% by wt. of potassium nitrate,
- heating means to heat the descaling product in said chamber to a consistency in which the descaling product can be applied through a nozzle device, said heating means being mounted to said chamber, and
- a nozzle device mounted directly to said chamber, said nozzle device being oriented to direct the molten descaling product from the chamber in a spray against a first surface of the metal strip as the strip passes through the spray box to descale the surface of the metal strip,
- said chamber being removable from said spray box to allow inspection and/or replacement of said nozzle device and said heating means if said nozzle device and said heating means become damaged or clogged.
Dependencies are inferred from the claim text.