Rotary nozzle system
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United States of America Patent
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-
Mar 22, 1988
Grant Date -
N/A
app pub date -
Nov 6, 1986
filing date -
Nov 18, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary nozzle system attached to the outlet of a metallurgical vessel to serve as a gate valve for controlling the rate of pouring of molten metal. A slide plate brick and bottom plate brick, each having a nozzle bore, are relatively rotated in a surface-to-surface contact condition to adjust the degree of communication opening of the nozzle bores. Each of the plate bricks is formed on the outer peripheral surface thereof with a flat portion for receiving the driving force for the relative reaction force at each of four locations arranged at angular intervals of 90.degree..
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