초록 ▼

A ceramic filter construction having particular use for removing particulate material in a catalytic incineration system. The ceramic filter is mounted in a plenum through which exhaust gas containing particulate material is conducted. Particulate material is removed from the gas stream as it flows

A ceramic filter construction having particular use for removing particulate material in a catalytic incineration system. The ceramic filter is mounted in a plenum through which exhaust gas containing particulate material is conducted. Particulate material is removed from the gas stream as it flows through the ceramic filter. To automatically clean the filter, a fuel burner is located upstream of the filter and extends across the plenum and divides the plenum into a pair of flow paths which merge downstream of the burner adjacent the filter. During the cleaning cycle, the burner directs a flame toward the filter. A damper is positioned in each flow path and the dampers can be independently operated to vary the volume of gas in each flow path and deflect the flame to cause the flame to translate across the surface of the filter to burn off combustible material adhered to the filter.

대표청구항 ▼

A ceramic filter construction operable in an incineration mode and a cleaning mode, comprising a plenum defining a flow path for a gas containing particulate material and having an upstream end and a downstream end, a gas permeable ceramic filter disposed in said plenum and having an upstream surfac

A ceramic filter construction operable in an incineration mode and a cleaning mode, comprising a plenum defining a flow path for a gas containing particulate material and having an upstream end and a downstream end, a gas permeable ceramic filter disposed in said plenum and having an upstream surface, fuel burner means disposed in said plenum and spaced upstream of said filter and dividing said plenum into a pair of gas flow passages, said burner means being constructed and arranged to direct a flame toward said surface, damper means disposed in each flow passage to control the flow of gas through the respective passage, each damper means being movable between a closed position and an open position, said damper means both being open during the incineration mode so that gas will flow through both passages on opposite sides of the flame, and operating means for independently moving each damper means between the open and closed positions during the cleaning mode to cause a differential in the volume of gas passing through said passages and on opposite sides of said flame to thereby deflect and direct the flame across said surface.