On-site concrete truck wash-out apparatus

B - Operations – Transporting – 03 – B

Patent

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Details

B03B 9/06 (2006.01) B01F 13/00 (2006.01) B01F 15/00 (2006.01) B08B 9/00 (2006.01) B08B 9/08 (2006.01) B28C 5/42 (2006.01)

Patent

CA 2365854

An apparatus and method for containing and filtering rinse water, sediment and aggregate resulting from washing the hopper and discharge chute components of a concrete truck at a construction site following use comprises a container (20) removably mountable on the end of the discharge chute (18), the container (20) having an open upper end (31), a screen (23) removably positionable within the container (20) and an outlet (29) located in a lower portion of the container (20) below the screen (23). The apparatus further includes a pump (32) mountable on the truck, the pump (32) having a suction hose (34) extending between the container outlet (29) and the pump (32), and a discharge hose (36) extending from the pump (32) to an open end discharging into the mixing drum (14). When the pump (32) is operating, rinse water and relatively small particle size sediment flushed down the chute (18) and into the container (20) is automatically conveyed through the suction (34) and discharge (36) hoses into the mixing drum (14).

La présente invention concerne un appareil et un procédé permettant de retenir et filtrer l'eau de lavage, les sédiments et les agrégats résultant du lavage de la toupie et de la goulotte d'un camion-toupie sur un chantier après utilisation. Cet appareil comporte un bac de réception (20), ouvert par le haut (31), monté amovible à l'extrémité de la goulotte (18), équipé intérieurement d'un tamis (23) amovible, et dont le fond est pourvu d'un orifice d'évacuation (29) en dessous du tamis (23). L'appareil comporte en outre une pompe (32) montée sur le camion et pourvue d'un tuyau d'aspiration (34) et d'un tuyau d'évacuation (36). Le tuyau d'aspiration (34) raccorde à la pompe (32) l'orifice d'évacuation (29) du bac. Le tuyau d'évacuation (36), qui est branché sur la pompe (32), se termine par une extrémité ouverte débouchant dans la toupie (14). Pendant le fonctionnement de la pompe (32), l'eau de lavage ainsi que le sédiment de calibre particulaire relativement petit chassé dans la goulotte (18) et dans le bac (20) sont automatiquement entraînés dans la toupie (14) via les tuyaux d'aspiration (34) et d'évacuation (36).

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