Refractory insulation for skid pipes and the like in reheating f

Heating – Heating apparatus element having protective cooling structure – Work skid or rail structure

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Details

138147, 138174, F27D 302

Patent

active

042253071

ABSTRACT:
Skid pipe insulation for water cooled support piping in a reheating furnace comprising refractory semicircular complementary sleeves having wire reinforcement embedded in the sleeve refractory material and wherein the wire may be prestretched and located on the inner surface of the refractory insulation to directly contact, metal-to-metal, the outer surface of the cooling pipe. The reinforcing reticulations of the wire are at an angle to the longitudinal axis of the refractory sleeve. Identical semi-circular portions are provided with interconnecting anchoring studs and eyes to reduce inventory and to enable stressing of the wire reinforcement simply by turning nuts of J-bolts, eliminating the requirement for welding of the reinforcing wire to the pipe. Longitudinal shoulders on the refractory protect the bolts from the effect of heat of the slab. The construction is such that tightening of the bolts and stressing of the reinforcing wire will cause no relative movement between the wire and refractory insulation.

REFERENCES:
patent: 2693352 (1954-11-01), Bloom
patent: 3030250 (1962-04-01), Losse
patent: 3804585 (1974-04-01), Twort
patent: 4134721 (1979-01-01), Davis et al.

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