Process and device for intermittenly spraying a pasty composition
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United States of America Patent
Stats
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Apr 14, 1992
Grant Date -
N/A
app pub date -
Apr 19, 1990
filing date -
Sep 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a process for intermittently spraying a setting pasty composition mixed with a tempering liquid, in particular for building up refractory linings of metallurgical vessels, the composition is conveyed from a preparing station (6) at which it is prepared, to a delivery nozzle (11). In order to prevent the composition from thickening or hardening in the duct (15) leading to the delivery nozzle (11) when delivery is interrupted, it is conveyed during delivery stops in a circuit that includes the delivery nozzle (11).
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