High frequency magnetic flux induction STS0 pages

SELECTIVE METAL SEPARATOR AND SORTER
STS
SCOPE
STS designates a family of selective
separators and sorters of non-magnetic
metals (non-ferrous). Based on the principle
of separation by eddy currents, the
STS systems are intended for the automatic
purification of materials versus
non-ferrous metals. Their design allows
extracting the few residual ferrous metals
and slightly magnetic metals. Thus, the
STS systems are found in glass and
plastic sorting plants, glass works and
other high pureness physical processes.
OPERATION
A vibrating feeder distributes the
product to be treated into a fine and
homogeneous layer on a wide and rapid
conveyor belt. Once the materials are
stabilized on the conveyor belt, they are
subjected to a high intensity alternating
magnetic field. The eddy currents
resulting in the electrically conducting
bodies allow repulsing non-ferrous
metals such as aluminum, copper, zinc,
etc. The intense magnetic field is
created by a polar wheel made of
Neodymium-Iron-Boron magnets.
This wheel allows also separating after
leaving the field the residual ferrous
metals and slightly magnetic particles.
This design offers many advantages :
– simultaneous purification of the nonferrous
metals and residual magnetic
metals ;
– maximum repulsion power thanks to
the choice of Neodymium-Iron-Boron
magnets with a large number of poles
and minimum clearances ;
– treatment of fine particles starting
from 2 mm ;
– effectiveness on lead.
TECHNICAL DESCRIPTION
The STS systems consist of :
– a thin flat conveyor belt, equipped
with double sealed edges ;
– an energized, large diameter polar
wheel mounted inside a sealed composite
drum ;
– a curved, motorized drum ;
– reinforced bearings accessible from
the exterior ;
– easily retractable side protection
panelings ;
– a separation chute with flap
adjustable by jack screws ;
– an unbalanced vibrating feed system ;
– a one-piece frame, housing all the
above components.
SPECIFICATIONS
The STS systems are finishing
machines ensuring high degrees of
pureness. To do this, the materials must
be prepared (screening, deferrization,
water content). Performances are maximum
when the single layer is ensured
with stabilized products.
Six STS types are offered according to
the conveyor belt's usable width :
600, 800, 1000, 1200, 1400, 1600 mm.
INSTALLATION MODALITIES
The STS systems are installed after
screening and deferrization in a cab
protected from bad weather.
Two side catwalks allow access to the
bearings, motors and conveyor belt for
adjustment and servicing. The electric
distribution cabinet used as a local
console is installed nearby.
The endless conveyor belt is removable
from the side opposite the motors.
ADDED FEATURES
The STS systems are designed to
ensure high levels of pureness for the
treated materials.
– control of the components manufacturing
;
– large diameter polar wheel, with a
maximum number of poles set inside
a stainless steel drum ;
– a completely safe rotating speed of
3000 rpm ;
– a reinforced and sealed composite
envelope ;
– a conveyor belt with double sided
edges, capable of reaching 1600 mm ;
– a long conveyor belt to stabilize the
products even at high speed (2 m/s) ;
– mechanical and electrical safety
devices ;
– removable panelings ;
– self-supporting frame ;
– adjustable flap from the exterior, with
a positioning index ;
– accessible bearings and motors.
UNMETALLIZATION
Réf. : 304 131 02