Title:
【発明の名称】フィルタの清掃
Document Type and Number:
Japanese Patent JPH08510410
Kind Code:
A
Abstract:
A method of cleaning metal filters of a solvent spun fibre production plant. The method comprises the step of (a) dissolving dope from the filters using a hot solvent for the dope, (b) washing the solvent from the filters using hot water, (c) pyrolysing remnants of dope or solvent in the filters, (d) ultrasonically washing the pyrolysed particles from the filters, (e) reheating the filters to dislodge pyrolysed particles, (f) ultrasonically rewashing the filters and (g) drying the filters.
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Inventors:
GRAY GARY EDWARD GEORGE (GB)
Application Number:
JP50037295A
Publication Date:
November 05, 1996
Filing Date:
May 20, 1994
Export Citation:
Assignee:
COURTAULDS FIBRES HOLDINYS LTD (GB)
International Classes:
B01D41/02; B01D41/04; B08B7/00; D01F2/00; (IPC1-7): B01D41/02
Attorney, Agent or Firm:
Takashi Ishida (3 others)