Filter holder and gasket assembly for candle or tube filters

Claim 2

A filter holder and gasket assembly for holding a thick walled candle filter element within a hot gas cleanup system pressure vessel, the filter element including a body having a generally cylindrical portion and a flange portion; the flange portion having a top surface and an outer diameter surface; said filter holder assembly comprising: a filter housing, said filter housing having a paripheral sidewall, said peripheral sidewall defining an interior chamber for receiving said flange portion of said filter element; a generally annular spacer ring, said spacer ring positioned within said interior chamber; at least one gasket sock formed to be positioned around the outer diameter surface of said flange portion to prevent contact between the outer diameter surface of the flange portion, and said filter housing; at least one top gasket formed to be positioned on the top surface of said flange portion of the filter element for providing a seal between said spacer ring and the top surface; at least one middle gasket formed to be positioned between said gasket sock and said filter housing sidewall to provide a seal between the filter body and said filter housing sidewall; a nut for securing the filter element, the filter housing, and the top and middle gaskets within the pressure vessel; and said top gasket and said middle gasket each comprising an interior mat, said mat being made of a ceramic fibrous material; and a braided casing formed around said interior mat, said braided casing made of a flexible ceramic material.

Claim 3

The assembly of claim 1 wherein said spacer ring is welded within said interior chamber.

Claim 4

The assembly of claim 1 further comprising a fail-safe/regenerator device securely mounted within said interior chamber.

Claim 5

The assembly of claim 1 further comprising a fail-safe/regenerator device that is removably mounted above said spacer ring within said interior chamber.

Claim 6

The assembly of claim 3 wherein said fail-safe/regenerator device and said spacer ring are securely mounted together to form a single unit, said unit welded within said interior chamber.

Claim 7

A filter holder and gasket assembly for holding a thin-walled composite candle filter within a hot gas cleanup system pressure vessel, the filter element including a body having a generally cylindrical portion and a flange portion; the flange portion having an outer diameter surface and an inner diameter surface, said filter holder assembly comprising: a filter housing, said filter housing having a peripheral sidewall, said peripheral sidewall defining an interior chamber for receiving said flange portion of said filter element; a generally annular spacer ring, said spacer ring positioned within said interior chamber, said spacer ring including a top surface and a bottom surface, and a transitional transducer depending from said bottom surface, said transitional transducer including a continuous sidewall having varying diameters that gradually decrease as the sidewall extends in a direction away from the bottom surface, said diameters being formed such that the transducer sidewall will not contact the inner diameter surface of the filter flange; at least one gasket sock formed to be positioned around the outer diameter surface of the flange portion to prevent contact between the outer diameter surface of the flange portion, and said filter housing; at least one interior gasket formed to be positioned adjacent to the inner diameter surface of the flange portion to provide a seal between the inner diameter surface of the flange portion and the transitional transducer; at least one middle gasket formed to be positioned between said gasket sock and said peripheral sidewall to provide a seal between the filter body and said peripheral sidewall; and a nut for securing the filter element, the filter housing and the interior and middle gaskets within the pressure vessel.

Claim 8

A filter holder and gasket assembly for holding a thin-walled composite candle filter within a hot gas cleanup system pressure vessel, the filter element including a body having a generally cylindrical portion and a flange portion; the flange portion having an outer diameter surface and an inner diameter surface, said filter holder assembly comprising: a filter housing, said filter housing having a peripheral sidewall, said peripheral sidewall defining an interior chamber for receiving said flange portion of said filter element; a generally annular spacer ring, said spacer ring positioned within said interior chamber, said spacer ring including a top surface and a bottom surface, and a transitional transducer depending from said bottom surface, said transitional transducer including a continuous sidewall having varying diameters that gradually decrease as the sidewall extends in a direction away from the bottom surface, said diameters being formed such that the transducer sidewall will not contact the inner diameter surface of the filter flange; at least one gasket sock formed to be positioned around the outer diameter surface of the flange portion to prevent contact between the outer diameter surface of the flange portion, and said filter housing; at least one interior gasket formed to be positioned adjacent to the inner diameter surface of the flange portion to provide a seal between the inner diameter surface of the flange portion and the transitional transducer; at least one middle gasket formed to be positioned between said gasket sock and said peripheral sidewall to provide a seal between the filter body and said peripheral sidewall; and a nut for securing the filter element, the filter housing and the interior and middle gaskets within the pressure vessel.

Claim 9

The assembly of claim 6 wherein said spacer ring is welded within said filter housing interior chamber.

Claim 10

The assembly of claim 6 wherein said spacer ring transitional transducer further comprises: a generally step shaped side wall depending from said transducer bottom surface, said sidewall having a large outer diameter surface and a small outer diameter surface, said transitional transducer large outer diameter surface being slightly smaller than the inner diameter surface of the flange portion such that the large outer diameter surface of the transitional transducer will not contact the inner diameter surface of the flange portion, said transitional transducer small outer diameter surface being slightly smaller than the inner diameter surface of the filter body such that the small outer diameter surface of the transitional transducer does not contact the inner diameter surface of the filter body.

Claim 11

The assembly of claim 6 further comprising a fail-safe/regenerator device, wherein said fail-safe/regenerator device and said spacer ring are securely mounted together to form a single unit, said unit welded within said interior chamber.

Claim 12

The assembly in claim 6 further comprising a fail-safe/regenerator device that is removably mounted within said interior chamber.

Claim 13

The assembly of claim 6 wherein said interior gasket and middle gasket are compliant cushions and seals.

Claim 14

The assembly in claim 6 wherein the interior and middle gaskets each comprise an interior mat, said mat being made of a complaint ceramic fibrous material; and a braided casing formed around said interior mat, said braided casing made of a flexible ceramic material.