Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1980-05-12
1984-11-06
Scherbel, David A.
Dispensing
Molten metal dispensing
Flow controllers or assists
222512, 222548, B22D 4108
Patent
active
044807716
ABSTRACT:
A rotary nozzle system for metallurgical vessels, especially steel ladles, whose stationary closure portion or part contains a refractory bottom plate and whose rotatable closure portion or part contains a rotatable toothed rim mounted at the stationary closure portion and a refractory slide plate which bears against the bottom plate. There is solved the problem of enabling a rapid, uncomplicated exchange, especially of the bottom plate and the slide plate with the particular task of automatically reestablishing each time a condition which ensures for operational reliability of the rotary nozzle system. This is obtained by constructing the rotatable closure portion or part as a housing having a rigid cover member which is detachably connected at the rotatable toothed rim. Internally of the housing there is located a pressure plate which receives the slide plate. Since the pressure plate is in direct rotatable engagement with the rotatable toothed rim and is supported, by means of spring elements, at the housing, preferably at the cover member, there is realized a stable construction with a predictable force flow. In particular, the contact or pressing forces are independent of the rotational movement and act directly upon the slide plate. For plate exchange it is only necessary to remove the housing cover, while the rotary drive continuously is maintained in engagement at the rotatable toothed rim.
REFERENCES:
patent: 3760992 (1973-09-01), Bieri
patent: 3764047 (1973-10-01), Inoue et al.
patent: 3912134 (1975-10-01), Poran
patent: 4314659 (1982-02-01), Shapland
"NKK Drehscheiber": Tokyo Yogyo Co. Ltd.
"Changeable Collector Nozzles": Interstop, Apr. 1978; M. H. Detrick Co., Chicago, Ill.
Kleeman Werner W.
Scherbel David A.
Stopinc AG
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