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1. WO2002018720 - CREEN ASSEMBLY FOR COMBINED SEWER OVERFLOW WEIR

Publication Number WO/2002/018720
Publication Date 07.03.2002
International Application No. PCT/GB2001/002121
International Filing Date 14.05.2001
Chapter 2 Demand Filed 25.03.2002
IPC
B01D 29/03 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
01with flat filtering elements
03self-supporting
E02B 8/02 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
BHYDRAULIC ENGINEERING
8Details of barrages or weirs
02Sediment base gates; Sand sluices; Structures for arresting waterborne material
E03F 5/14 2006.01
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
5Sewerage structures
14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
CPC
B01D 2201/48
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2201Details relating to filtering apparatus
48Overflow systems
B01D 29/035
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
01with flat filtering elements
03self-supporting
035with curved filtering elements
B01D 29/6415
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
62Regenerating the filter material in the filter
64by scrapers, brushes, ; nozzles; , or the like, acting on the cake side of the filtering element
6407brushes
6415with a rotary movement with respect to the filtering element
B01D 29/6476
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
29Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
62Regenerating the filter material in the filter
64by scrapers, brushes, ; nozzles; , or the like, acting on the cake side of the filtering element
6469scrapers
6476with a rotary movement with respect to the filtering element
E03F 5/12
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
5Sewerage structures
12Emergency outlets
E03F 5/125
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
5Sewerage structures
12Emergency outlets
125providing screening of overflowing water
Applicants
  • HYDRO INTERNATIONAL PLC [GB]/[GB] (AllExceptUS)
  • WOODBRIDGE, Barrie, Christopher [GB]/[GB] (UsOnly)
  • COTTAM, Kevin, Donald [GB]/[GB] (UsOnly)
Inventors
  • WOODBRIDGE, Barrie, Christopher
  • COTTAM, Kevin, Donald
Agents
  • HASELTINE LAKE
Priority Data
0021212.629.08.2000GB
0029742.406.12.2000GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CREEN ASSEMBLY FOR COMBINED SEWER OVERFLOW WEIR
(FR) ASSEMBLAGE DE TAMIS POUR DEVERSOIR D'ORAGE
Abstract
(EN)
A screen assembly in which the screen (10) is in the form of an inverted semi-circular trough the foul flow (A) to be screened approaching the underside of the screen so that debris which is filtered falls away from the screen by gravity so minimising blockages and 'blinding' of the screen. A helical sweeper (20) is provided to minimise adherence to the screen.
(FR)
L'invention concerne un assemblage de tamis dans lequel le tamis (10) se présente sous la forme d'un bac inversé semi-circulaire, l'écoulement de l'eau trouble (A) à tamiser arrivant par le dessous du tamis, de manière que les débris qui sont filtrés tombent à distance du tamis par gravité, afin minimiser les blocages et les «colmatages» du tamis. Une balayeuse hélicoïdale (20) est prévue afin de minimiser l'adhérence sur le tamis.
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