SELF-ANCHORING EXPANSION GAP ASSEMBLY FOR A GASIFIER

摘要

A self-anchoring expansion gap assembly (42) for refractory lined vessels su ch as a gasifier (10) includes a substantially annular insulating blanket structure (66, 68) formed of compressible refractory material. A coil of rop e (62) formed of relatively incompressible refractory material is positioned proximate an outer periphery of the insulating blanket structure. The expansion gap assembly is placed in an expansion gap of a gasifier, for example, such that the coil of rope aligns with an annular channel (30) form ed in the refractory lining of the gasifier at the expansion gap. Compression o f the expansion gap assembly locks the coil of rope in the annular channel of the expansion gap thereby resisting vacuum pullout. The coil of rope can be formed as a single coil or a plurality of substantially concentric coils preferably from a single length of refractory rope.