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The self-anchoring expansion gap assembly for refractory lined vessels such as a gasifier includes a substantially annular insulating blanket structure formed of compressible refractory material. A coil of rope formed of relatively incompressible refractory material is positioned proximate an outer

The self-anchoring expansion gap assembly for refractory lined vessels such as a gasifier includes a substantially annular insulating blanket structure formed of compressible refractory material. A coil of rope 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 formed in the refractory lining of the gasifier at the expansion gap. Compression of 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.

대표청구항 ▼

1. A self-anchoring refractory expansion gap assembly comprising,a) a substantially annular thermal insulating structure formed of compressible refractory material, said annular insulating structure having an inner periphery, an outer periphery, a first predetermined axial thickness when the insulat

1. A self-anchoring refractory expansion gap assembly comprising,a) a substantially annular thermal insulating structure formed of compressible refractory material, said annular insulating structure having an inner periphery, an outer periphery, a first predetermined axial thickness when the insulating structure is uncompressed, and a second reduced axial thickness when the insulating structure is compressed a predetermined amount in an axial direction, and b) a coil of rope formed of relatively incompressible refractory material positioned proximate the outer periphery of the annular insulating structure such that the coil of rope is within the outer periphery of the annular insulating structure, whereby said coil of rope and said annular insulating structure can receive an axial force such that said coil of rope is directed axially into an annular channel of an expansion gap with said annular insulating structure to lock the annular insulating structure and the coil of rope into the annular channel and thereby prevent vacuum pullout of the expansion gap assembly from the expansion gap.