Low conductivity refractory insulation member with fiber mat

Details Low conductivity refractory insulation member with fiber mat Low conductivity refractory insulation member with fiber mat

2006-07-28

2009-12-08

Wilson, Gregory A (Department: 3749)

Heating

Heating apparatus element having protective cooling structure

Work skid or rail structure

C122S511000, C138S149000

Reexamination Certificate

active

07628611

ABSTRACT:
A thermo-insulation article for a heat absorptive element, e.g., a water-cooled pipe, in a furnace has two parts joined to form a member for covering the pipe. Each part has an interconnected reticulated metal structure embedded in a refractory material. A thermo-insulating mat mounted over inner surface of the parts has a thermal conductivity lower, e.g., equal to or less than 25% lower, than thermal conductivity of the refractory material of the part. In one non-limiting embodiment of the invention, the thermo-insulating mat has a thermal conductivity equal to or less than 0.15 Btu's/hour/ft/degrees Fahrenheit, and the refractory material has a thermal conductivity in the range of 0.30-0.60 Btu's/hour/foot/degrees Fahrenheit. A surface of the mat is embedded in the refractory material and, optionally, a protective layer covers outer exposed surface of each of the mats to protect the mats during shipping and handling.

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