Separation & mixing technology

Multi fraction separators

  • eccentrically mounted, one-piece sieve tub with different mesh apertures
  • two drive shafts with one motor each, controlled by frequency converter
  • steel plate housing with big service openings and connections for dust exhaust
  • air support to enhance the ballistic separation process

How they work

The pre-treated input material is fed in the middle of an inclined sieve tub, which rotates circularly around two eccentric shafts. The drive consists of two electric motors, which have a common frequency converter to achieve synchronism. The motors and the bearings of the shafts are positioned outside of the waste flow, so that the minimised dust load extends the maintenance intervals and therefore the maintenance costs.

The rotation around the shafts generates a jolting effect. In combination with the adjustable inclination of the sieve tub, different movement directions are caused according to physical attributes of the waste material. Light and areal pieces climb up in movement direction, heavy and round pieces move down against the movement direction.

The light and areal fraction mainly consists of paper, plastic foils, textiles, cardboard etc., while the heavy and round fraction mostly consists of metals, stones, wood, rubber, plastic bottles, glass etc..

The mesh aperture of the sieve tub has changeable sieve plates, which make it possible to separate additional material in a selectable grain size as a fine fraction.  


Drum sieves

Stationary drum sieve machines separate the input volume flow into different output fractions. The project specifications, like kind of waste, throughput and sieve grain define the type and size of Ennex drum sieve machines. The product range spreads from one-piece drum bodies with one or more mesh apertures to drum bodies in a solid frame construction with changeable sieve plates.

Solid steel plate housings with convenient maintenance openings, closed chutes and connections for dust exhaust reduce the dust- and noise-level to a minimum.


Homogenising drums

Stationary homogenising drums mix pre-treated waste types and prepare them for the following biological treatment.

Different sizes allow the individual adaptation to optimise the throughput and the material remains in the machine.

Solid and generously designed drives provide high availability even at low rotation speeds. The feeding with a spiral conveyor ensures a mostly closed drum entry, which improves the addition of sewage sludge or seeping water.