Multiple density monolithic refractory material and burner

Details Multiple density monolithic refractory material and burner Multiple density monolithic refractory material and burner

C - Chemistry, Metallurgy

04

B

25/111

C04B 35/80 (2006.01)

Patent

CA 2290161

A multiple density monolithic refractory material includes a first layer of refractory fiber material having a first density connected to a second layer of refractory fiber material having a second density. The second density is greater than the first density. The fibers of the first layer are intertwined with the fibers of the second layer to form a mechanical connection between the layers. An electric coil may be positioned between the layers to form a burner for a gas- fuel fireplace. The monolithic material is formed by providing a bath of fibers, binder, and water; providing a mold; positioning a low density refractory material layer in the mold; and moving at least a portion of the bath through the low density refractory material layer to deposit the fibers of the bath against the low density refractory material layer.

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