Metallurgical apparatus – With control means responsive to sensed condition – With means supplying a treating agent
Patent
1984-11-07
1986-05-13
Andrews, Melvyn J.
Metallurgical apparatus
With control means responsive to sensed condition
With means supplying a treating agent
251305, 266187, 266223, 266266, 432 40, C21B 716
Patent
active
045881685
ABSTRACT:
An apparatus for regulating the feed or delivery of hot air in the tuyere stock of a shaft furnace, and a tuyere stock which incorporates such a regulating apparatus is presented. The regulating apparatus may be used in conjunction with a tuyere stock for a shaft furnace (the structure of which is well known) and consists of an articulated pipe connecting a large circular conduit to a nozzle and which is fitted internally with a refractory lining having an internal channel therethrough for the passage of air. The regulating apparatus of the present invention comprises a valve substantially in the form of a disc which is adapted to operate in a spherical portion of the internal channel described above. The disc is removably mounted on the end of a rod, the rod being rotatably and hermetically mounted in a tubular support integral with the wall of the tuyere stock and connected on the outside thereof to a mechanism which serves to pivot both the rod and the valve about the longitudinal axis 0 of the rod.
REFERENCES:
patent: 2406075 (1946-08-01), Grares, Jr. et al.
patent: 3298824 (1967-01-01), Grace et al.
patent: 3640499 (1972-02-01), Jung
Bernard Gilbert
Calmes Marc
Mailliet Pierre
Andrews Melvyn J.
Paul Wurth S.A.
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