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US 4,504,219 AGranted
Heating apparatus for circulatory-firing open baking furnaces and process for use of the apparatus
AssigneeAluminium Pechiney
InventorJean-Claude Thomas
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AssigneeAluminium Pechiney
InventorJean-Claude Thomas
Estimating the term…
The heating apparatus according to the invention concerns open circulatory-firing baking furnaces comprising an assembly of chambers which are heated by gases which circulate in hollow partitions (7, 19, 25) which divide the chambers into compartments. The hot gases are produced by fuel injection means (13, 17) which are placed in the upper part of the partitions. In accordance with the invention, instead of the fuel injectors (13, 17) being placed in the same direction as the flow of combustion-supporting gas, the injectors (26, 29) are placed countercurrent, which permits the temperature distribution and the accuracy of the control action to be substantially enhanced. The apparatus is applied in particular to baking carbon anodes which are used in aluminum electrolysis cells.
A heating apparatus for an open circulatory firing baking furnace having a plurality of baking chambers, said heating apparatus comprising:
A process for heating an open circulatory baking furnace having a plurality of baking chambers separated by hollow partitions having baffle means therein, said process comprising the steps of:
Dependencies are inferred from the claim text.