The DecaPress DP84-362 decanter centrifuge with scroll comprises a rotating bowl, consisting of a feed pipe, a cylindrical section where the separation of the suspension takes place, and a conical section where the scroll removes the dewatered sludge, the housing enclosing the rotor, the base frame bearing rotor and housing, and the bowl and scroll drive systems.

Specification

  • Bowl length: 3056mm

  • Total length: 5040mm

  • Width: 2320mm

  • Height: 1800mm

  • Capacity: up to 40m3 per hour

How it works

Used for the continuous separation of a solid-liquid suspension in which the specific gravity of the liquid is less than the specific gravity of the solid. This is accomplished using high bowl speeds and low scroll differential speeds at high scroll torques.

The suspension enters the rotating feed compartment through the feed pipe, it is accelerated in the direction of rotation and enters the rotating bowl via the feed ports in the scroll hub. The solid particles move towards the bowl wall of the cylindrical section under the effect of the centrifugal forces.

The settled solids are moved by the scroll to and through the conical section, at the end of which they are discharged as dewatered solids ('cake'). The liquid effluent is discharged from the bowl over adjustable weir plates at the feed end.