Device for the collection of water in a granular material bed filter
AssigneeDegremont, S. A.
InventorsJean-Philippe Gibaud, Jean Durot, Robert Louboutin
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Abstract
A device for the collection of water from a granular material bed filter includes means for injecting water and air through the filtration bed as well as an outer chute provided with a weir for the discharge of water, characterized in that it is made of a storage capacity placed between the filter and the discharge chute and defined by a vertical perforated wall such as a grid situated in vertical alignment with the filter vertical wall, and a plane slanting inwardly to the inside of the filter, said slanting plane connecting the weir for the discharge of the water via the chute to the filter wall situated below the vertical perforated wall such as the grid.
Claims8
An apparatus for the collection of water from a filter comprising a bed of granular filtration material contained in a filter having a discharge side wall, means for passing water and air through the bed of granular filtration material operably associated with the filter, and means for discharging water from the filter attached to said discharge side wall, said means for discharging comprising an outer chute provided with a weir for the discharge of water, an intermediate collection zone located between the filter and the outer chute defined by a vertical perforated wall situated in vertical alignment with the discharge side wall, the weir and a floor slanting downwardly, inwardly from the weir to the discharge side wall, said slanting floor connecting the weir for the discharge of water to the discharge side wall situated below the vertical perforated wall.
Dependencies are inferred from the claim text.