Cyclonic separating apparatus

A - Human Necessities – 47 – L

Patent

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Details

A47L 9/16 (2006.01)

Patent

CA 2442218

The invention provides cyclonic separating apparatus (100) comprising a plurality of cyclones (104), each having an inlet and being arranged in parallel with one another, and a passageway (142) arranged upstream of the cyclones (142) for carrying an airflow to the inlets of the cyclones (104), wherein dividing means (170) are provided in the passageway (142) for dividing the airflow within the passageway (142) into a number of separate flowpaths (142a), the number of flowpaths (142a) being equal to the number of cyclones (104), and wherein the cross-sectional area of each flowpath (142a) decreases in the direction of flow therealong. The invention also provides a method of operating cyclonic separating apparatus (100) comprising a plurality of cyclones (104), each having an inlet and being arranged in parallel with one another, and a passageway (142) arranged upstream of the cyclones (104), the method comprising the steps of:(a) introducing a flow of dirt-laden air to the passageway (142); (b) dividing the flow of dirt-laden air into a plurality of airflow portions, the number of airflow portions being equal to the number of cyclones (104); and(c) reducing the cross-sectional area of each of the airflow portions in the direction of flow of the dirt-laden air.

L'invention concerne un appareil de séparation cyclonique (100) composé de plusieurs cyclones (104), pourvus chacun d'une admission et parallèles les uns aux autres, et d'un passage (142) placé en amont des cyclones (142) destiné à amener un flux d'air aux admissions des cyclones (104). Des séparations (170) installées dans le passage (142) répartissent le flux d'air dans ledit passage (142) en plusieurs circuits d'écoulement (142a) indépendants, leur nombre étant égal à celui des cyclones (104). L'aire transversale de chaque circuit d'écoulement (142a) diminue dans la direction du flux sur toute sa longueur. L'invention concerne également un procédé de fonctionnement de l'appareil de séparation cyclonique (100) composé de plusieurs cyclones (104), pourvus chacun d'une admission et parallèles les uns aux autres, et d'un passage (142) placé en amont des cyclones (104), ainsi qu'un procédé qui consiste (a) à introduire dans le passage (142) un flux chargé de poussières; (b) à répartir le flux chargé de poussières en plusieurs parties de flux d'air, leur nombre étant égal à celui des cyclones (104); et (c) à réduire l'aire transversale de chaque partie de flux d'air dans la direction du flux d'air chargé de poussières.

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