B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/19
B01D 29/94 (2006.01) B01D 29/60 (2006.01) B01D 35/12 (2006.01) B01D 35/18 (2006.01)
Patent
CA 2009267
ABSTRACT OF THE DISCLOSURE A method and apparatus for automatically propelling a charge of backwash fluid by a compressed gas such as steam to backwash a filter in a filter pair. The method and apparatus provides for backwashing a filter with at least three backwash phases, a first mainly comprising a charge of backwash fluid passing through the filter with significant speed, a second relating to use of flashing steam for secondary cleaning and scrubbing of the filter elements, and a third relating to use of low pressure steam for autoclaving and sterilizing the filter.
Cdp Product Development Corporation
Crowson Francis R.
Gowling Lafleur Henderson Llp
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