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Waste & effluent treatment
New separator for wet and dry applications
This new separator offers better operating performance in terms of
improved separa-tion, quality and increased capacity. Using this
separator, with a 600 micron mesh, one of Europe’s largest manufacturers
of sugar confectionery was able to reduce wastage by up to 1260 kg a week.
Waste or effluent treatment is as large and diverse as industry itself.
All processes produce waste, which is a cost of production, so any saving
in this area is justified and to be encouraged. Typically, water is an
essential ingredient of most processes and is often also the main element
of waste. In the past it was acceptable to let wastewater go to the drain
but nowadays environmental legislation either bans water with excessive
levels of solids, or charges for treating it at a price according to the
level of solids, BOD or COD. It makes sense, therefore to clean up the
water to avoid or, at least, reduce those costs. In doing so processors
have also justified in cost terms the recovery of many by-products,
including water. Process water often can be filtered simply to remove the
bulk of the solids, sufficient for it to be re-used in the same process.
Wet and dry applications
The new separator from Russell Finex has been designed to handle wet or
dry applications. Up to four screen surfaces can be mounted on one
separator, providing up to five predetermined fractions in a single
operation. Extensive performance trials have shown that at least twice the
capacity can be achieved with most materials with the same accuracy of
separation when compared with standard separator designs. The vibrator
housing has been specifically designed around a high-mass, machined
casting, to enhance operational effectiveness and incorporates a standard
drive motor. The hand-built housing translates power into the screening
area above, more effectively than similar separators which leads to
increased capacity. Rubber suspension mounts make the separator far
quieter in operation than separators fitted with springs. The provision of
four rubber feet also contributes to a low noise level, compared to
machines with metal plates in direct contact with the floor which may set
up vibrations.
A standard, off-the shelf motor, rather than a more expensive vibratory
model powers the separator. Where necessary, the motor can be replaced
quickly and easily at minimal cost. The use of a standard motor enables
easy conformance to any current and future flameproof/explosion zone
requirements.
Retrofitting possible
The separator fits neatly into production lines, providing very high
screening capacities without requiring excessive floor space. The modular
nature of the decking contributes to flexibility and the optimum use of
space.
The oversize discharge spouts can be moved around a machine’s
circumference, allowing freedom in the location of material collection
points. The vibrator assembly has been designed specifically to translate
the torque produced by the motor into the out of balance forces required
to run the machine. An adjustable weight system creates a more vigorous
action, raising screening and separation efficiency.
Consistent material flow is now possible over all four decks giving
greater separation accuracy. The separator can be fitted with conventional
mechanical screen cleaning devices and the patented Vibrasonic mesh
deblinding system from the same manufacturer.
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