B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/61
B05C 3/02 (2006.01)
Patent
CA 1138633
TITLE GUNNING APPARATUS FOR IN SITU SPRAYING OF REFRACTORY MATERIAL ABSTRACT OF THE DISCLOSURE A housing having an interior chamber with an inlet and outlet therto is suspended by a crane within a ladle or furnace having an interior refractory surface to be relined. A feed conduit for conveying dry refractory material entrained in an air stream extends through the inlet into the interior chamber. A nozzle assembly having a pair of oppositely positioned spray noz- zles is rotatably supported in the outlet of the housing. A con- duit of the nozzle assembly is rotatably connected at one end by a coupling to the feed conduit within the housing and communicates with ring that receives a wetting agent, such as water, from a supply conduit that is connected by a swivel assembly to the noz- zles to permit rotation of the nozzles relative to the supply conduit. Each water ring directs the water into mixture with the air entrained dry refractory materials flowing through the nozzle. A reversible, variable speed motor is drivingly connected to the nozzle conduit within the housing and is remotely controlled to oscillate the nozzle assembly at a preselected rate through an arc of a preselected angle to apply the refractory material to a worn quadrant of the interior surface. -2-
333874
Bmi Inc.
Macrae & Co.
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