Heating vessel lid construction

Details Heating vessel lid construction Heating vessel lid construction

C - Chemistry, Metallurgy

03

B

49/14

C03B 5/42 (2006.01) C03B 5/14 (2006.01) C03B 5/26 (2006.01) C03B 5/44 (2006.01)

Patent

CA 1331282

ABSTRACT A lid of a glass batch melting vessel is subjected to corrosive and thermal degradation. The lid is cooled and the temperature of the exposed inner surface of the lid is controlled such that particulate and molten materials entrained in exhaust gas circulating within the vessel adhere to the lid surface forming a protective, insulating coating that prolongs the service life of the lid. In addition, a multilayered, cooled metal lid for a heating vessel has a main support plate fabricated from low carbon steel and a chromium steel overlay that is exposed to the hot interior portions of the vessel. The chromium steel overlay has a chromium content by weight of approximately 10 to 25 percent.

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