Metallurgical discharge sleeves

Details Metallurgical discharge sleeves Metallurgical discharge sleeves

B - Operations, Transporting

22

D

39/113

B22D 41/58 (2006.01) B22D 41/42 (2006.01) F27D 3/14 (2006.01)

Patent

CA 1283288

23843-162 ABSTRACT OF THE DISCLOSURE A refractory discharge sleeve for use in the outlet of a metallurgical vessel includes an annular insert of a refractory gas-permeable material surrounding the flow passage and embedded in the refractory material of the sleeve. The insert is surrounded over its periphery and over at least a part of its ends by a metal casing. A pipe communicates with the interior of the casing. An inert treatment gas may be supplied through the pipe and then passes through the pores of the insert into the flow passage and thus prevents clogging of the flow passage. PA 3488

505832

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