Filter device and filter method
AssigneeHerding GmbH Filtertechnik
InventorsUrs Herding, Stefan Hajek
Life of this patent
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Abstract
A filter device (19) is proposed for cleaning gas entraining foreign bodies, comprising: at least one filter unit (12) having at least one filter surface on a raw gas side to which a raw gas stream (44) containing foreign bodies can be supplied, wherein filtration aids can be supplied to the raw gas stream (44) and/or the filter surface, and wherein filtration aids and/or foreign matter attached to the filter surface can be cleaned off. The filter device (10) additionally comprises a fluidized bed arrangement (55) in which a carrier fluid stream (54) can be generated such that cleaned-off filtration aids and/or foreign matter can be held at least in part as filtration aerosol in a surrounding of the filter unit (12) and/or can re-attach to a filter surface.
Claims30
A filter device (10) for cleaning gas entraining foreign matter, comprising:
- at least one filter unit (12) having at least one filter surface on a raw gas side of the same to which filter surface a raw gas stream (44) containing foreign matter can be supplied, wherein filtration aids can be supplied to the raw gas stream (44) and/or to the filter surface and wherein filtration aids and/or foreign matter attached to the filter surface can be cleaned off;
- and
- a fluidized bed arrangement (55) in which a carrier fluid stream (54) can be generated which is adapted to hold cleaned-off filtration aids and/or foreign matter at least in part as filtration aerosol in a surrounding of the filter unit (12) and/or which allows for re-attachment of such cleaned-off filtration aerosol and/or foreign matter to a filter surface.
A method of cleaning gas entraining foreign bodies,
- comprising:
- supplying a raw gas stream (44) containing foreign matter to at least one filter unit (12) having at least one filter surface on a raw gas side of the same, with filtration aids being supplied to the raw gas stream (44) and/or to the filter surface and with filtration aids and/or foreign matter attached to the filter surface being cleaned off;
- and
- generating a carrier fluid stream (54) which is adapted to hold cleaned-off filtration aids and/or foreign matter at least in part as filtration aerosol in a surrounding of the filter unit (12) and/or allows for re-attachment of such filtration aids and/or foreign matter to a filter surface.
Dependencies are inferred from the claim text.