Heating – Processes of heating or heater operation – Treating an article – container – batch or body as a unit
Patent
1980-11-26
1982-07-06
Camby, John J.
Heating
Processes of heating or heater operation
Treating an article, container, batch or body as a unit
266 80, 432 51, F27D 300
Patent
active
043380778
ABSTRACT:
This invention relates to a method of controlling the temperature of a heating furnace which has at least one furnace zone capable of being controlled by heating means and which conveys materials to be heated, that are introduced thereinto, by conveyor means such as a walking beam or a pusher so that the materials are heated to a predetermined temperature until they are withdrawn from the discharge side.
More specifically, the present invention relates to a method of controlling set furnace zone temperature of the heating furnace when the materials to be heated, that are introduced into the heating furnace, have different temperature elevation patterns. The method of the invention is specifically characterized in that the predetermined set temperatures of each zone is used when the temperature elevation patterns of slabs are different with each other. The invention is directed to minimize the idle time inside the furnace when the materials having different temperature elevation patterns are sequentially introduced into the furnace, in order to conserve energy. The method is especially effective when the cold and hot materials are introduced into the furnace.
REFERENCES:
patent: 3604695 (1971-09-01), Steeper
patent: 3695594 (1972-10-01), Hollander
patent: 4255133 (1981-03-01), Tanifuji et al.
patent: 4257767 (1981-03-01), Price
Morooka Yasuo
Nakai Kozo
Shibayama Hiroshi
Tanifuji Shinya
Togashi Nobuyuki
Camby John J.
Hitachi , Ltd.
Nippon Kokan Kabushiki Kaisha
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