High temperature ceramic particulate filter

Details High temperature ceramic particulate filter High temperature ceramic particulate filter

C - Chemistry, Metallurgy

04

B

C04B 38/06 (2006.01) B01D 39/20 (2006.01) C04B 14/38 (2006.01) C04B 26/06 (2006.01) C04B 28/06 (2006.01) C04B 35/64 (2006.01)

Patent

CA 2107213

A high temperature ceramic filter is produced from a com- position containing refractory cement, aggregate, pore forming additives, and sintering agents. The pore forming additives are synthetic or organic powders or fibers which sublimate, melt, or otherwise disintegrate to produce in situ pores in cement during refractory treatment of a cast filter. The filters produced are permeable to high temperature gases commonly found in a coal furnace and can be used to collect particulate matter present in those gases. The filter apparatus includes a housing having an in- let and outlets for particulate and clean gas respectively. A tube sheet divides the housing into a raw gas chamber and a clean gas chamber. Candle filters are suspended in the raw gas chamber and pulsating air flow is injected into the candle filter from a pulse air source.

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