Drum type rock catcher
The Glaß & Wolff drum type rock catcher consists of a solid housing basin where the drum is supported on two thick spherical roller bearings.
The case tray serves as a connecting element to the flumes and as a sediment and water collection tank. The Glaß & Wolff drum type rock catcher is completely closed, in contrast to the drum type gravel and sand catcher. The water supply of the scoops comes from the drum. The drums are constructed on an annular channel design.
The stone capture pockets, which vary in size and dimensions depending on the size of the construction, are linked with the water scoops and an internal annular channel system. The water needed is filtered through a strainer made of screening bars and into the drum. Sand particles settle at the outer wall of the drum.
With this system, the drum type rock catcher is not reliant on an external water supply. The water collected between the screening bars and the outer wall of the drum is moved through the annular channels to the stone traps with the rotation of the drum. The water flows out of the stone traps and is adjustable to the desired flotation based on the drum speed or a simple cross-sectional reduction. The flow of the buoying water determines the degree of separation.
With the flotation water, the organic components that are swept along with the transportation water through the stone trap drum are lifted to the surface. Due to their specific gravity, stones
fall against the flow of the flotation water and into the removal scoops. Through further rotation of the drum, the stones are discharged from the machine via a removal chute for further uses.