B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 24/22 (2006.01) B01D 24/24 (2006.01) B01D 24/46 (2006.01)
Patent
CA 2075564
Underdrain lateral system, which is especially adapted for use in a gravity filter bed, includes, as its preferred embodiment, scallop-shaped laterals (26, 126) having an upper, wrapped wire, slotted screen surface (28). The screen surface supports and retains the filter media particles (118) directly, without the necessity of an underlying gravel layer, and is itself supported by channel- shaped rod members (34) which are welded to the wires (30). The web portions (36) of the channel-shaped rod members perform the function of simultaneously distributing air and water during backwashing, and include a smaller total area of apertures (38) in upper channels and a larger total area of apertures (40) in lower channels to cause a plenum (56) to be formed inside the laterals which ensures that the distribution of air and water will be uniform throughout the lateral, even if the lateral is not perfectly level. Distribution of the air and water throughout all of the laterals is made even more uniform by mounting the laterals on a header (124) and providing perforated flow tubes (122) which extend from each lateral into the header to produce an additional air plenum (135) therein.
Macrae & Co.
Weatherford/lamb Inc.
LandOfFree
Apparatus for uniformly distributing gas and/or liquid in an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for uniformly distributing gas and/or liquid in an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for uniformly distributing gas and/or liquid in an... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1884595