Abstract: Interlocking refractory segments for use in insulating pipes and the like are each formed with wire anchors embedded therein. The anchors have exposed ends at each side edge of the refractory segment. The exposed ends of one segment are formed so as to interlock with the exposed ends of a second segment so as to secure the segments in a fixed position extending around the pipe to be insulated. Preferably, the exposed ends of one segment are shaped to provide a hook configuration and the exposed ends of the anchor of another segment are shaped to provide an eye configuration for receiving the hook shaped configuration.

Abstract: A lining block for lining the wall of a kiln furnace or the like according to one aspect of the present invention consists of a body of a refractory material having a passage extending from its inner face to its outer face and an anchor plate secured with respect to the refractory body and being accessible by way of said passage so that it may be secured with respect to the wall of the kiln or furnace to secure the lining block in position. A refractory lined chamber according to the present invention has a metallic wall and a plurality of lining blocks each having anchor plates welded to the metallic wall. The method of forming a refractory lining in the chamber having a metallic wall comprises the steps of; forming a plurality of lining blocks as described above and securing the anchor plates of the lining blocks with respect to the metallic wall by way of the through passage and filling the through passage with refractory material to form a continuous refractory lining chamber.