Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1991-03-05
1992-08-25
Kastler, Scott
Dispensing
Molten metal dispensing
Flow controllers or assists
B22D 4124
Patent
active
051411393
ABSTRACT:
A sliding gate valve for metallurgical vessels, such as pouring ladles, is disclosed. The sliding gate valve may include a slide gate housing fastenable to a melt-containing vessel. A heat-resistant closure plate may be held stationary by a movable slide plate pressing against the closure plate. The slide plate may be supported in a frame having two sets of rollers. The frame may be connected to a drive, for example a hydraulic or pneumatic drive. An aperture may be provided in the housing bottom for passage of the frame rollers therethrough. The distance corresponding to the axial spacing between the sets of rollers is equivalent to the distance corresponding to the axial spacing between side apertures of the bottom aperture. The axial spacing between the rollers corresponds to the axial spacing between the side apertures to allow for the simultaneous passage of both sets of rollers through the side apertures. The frame may be guided in the housing on a slide comprising side aperture closing portions which may be displaced to open and close the side apertures of the housing bottom. The frame and the slide may be provided with bores that may be temporarily and rigidly connected with each other by a connecting bolt. Each roller of one set of rollers may be equipped with a releasable connecting bolt cooperating with a housing receptacle.
REFERENCES:
patent: 3765579 (1973-10-01), Cramer et al.
Cerafer S.A.R.L.
Kastler Scott
Koch Robert J.
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