Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1981-08-13
1983-02-15
Camby, John J.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
266158, 432162, 432164, 432179, F27B 904, F27B 318, F27D 1700, C21B 722
Patent
active
043739113
ABSTRACT:
An apparatus for preheating steel scrap comprises: a preheating vessel, having an open top and a bottom lid capable of being opened and closed, for receiving and preheating steel scrap, said preheating vessel being adapted to receive steel scrap to be preheated from said open top and to discharge the steel scrap preheated in said preheating vessel by opening said bottom lid; a hood downwardly flaring for covering said open top of said preheating vessel, said hood being movable from said open top of said preheating vessel and adapted to introduce high-temperature waste gases discharged from a steel-refining metallurgical furnace into said preheating vessel; a pit for housing said preheating vessel, said pit being provided with a duct for discharging to the outside said waste gases discharged into said pit from the bottom of said preheating vessel after preheating said steel scrap received in said preheating vessel; and, a canopy for sealing the gap between said pit and said preheating vessel housed in said pit, the gap between the periphery of said canopy and said pit being liquid-sealed. The apparatus is characterized in that: said canopy is gas-tightly fixed to said hood; and, the gap between said canopy and said preheating vessel housed in said pit is sealed by an expansion bellows fixed at an end thereof to said canopy.
REFERENCES:
patent: 3111400 (1963-11-01), Hoff
patent: 3536343 (1970-10-01), Casperson et al.
patent: 3852028 (1974-12-01), Reinbold et al.
patent: 4278421 (1981-07-01), Limque et al.
Date Takasaburo
Iguchi Mitsuya
Iwamaru Sumifusa
Maki Toshimichi
Watanabe Hisashi
Camby John J.
Nippon Kokan Kabushiki Kaisha
Toshin Seiko Kabushiki Kaisha
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