C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
38/12, 202/14, 3
C10B 49/06 (2006.01) C10B 7/02 (2006.01) C21D 1/00 (2006.01) F27B 9/16 (2006.01) F27B 9/18 (2006.01)
Patent
CA 1042831
ABSTRACT OF THE DISCLOSURE The invention relates to a method and apparatus for the heat treatment of materials on a traveling hearth which is confined within a substantially air-tight enclosure. The materials on the hearth are deposited thereon in separate and distinct rows and retained in separate rows while under- going heat treatment within the enclosure. The material in one of said rows is capable of evolving volatiles when the materials are subjected to a heat treatment and the evolved volatiles rise and are dispersed in the upper portion of the enclosure where the same will combine with an oxidant such as air and/or oxygen which is admitted into this portion of the enclosure. The mixture of evolved volatiles and oxidants such as air and/or oxygen will combust in the upper portion of the enclosure. The heat created by the combustion of the evolved volatiles is directed onto the roof and side walls of the enclosure thence transferred back onto the materials which are in other spaced apart rows on the hearth to thus heat treat these materials. The materials to be heat treated by the combustion of the volatiles emanating from one row of materials may be granular, solid, or liquid as the case may be. -1-
245019
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