L O G I S T I C S
BOGE BLUEPROTECT PROTECTION
FROM PESTS IN GRAIN STORAGE
CONVEYOR AND DRIVE SOLUTIONS
POSITIVE DRIVE BELTS
HYGIENE, EFFICIENCY, ECONOMICAL
THE HYGIENIC CHOICE
IN STOCK NZ
www.transmissionhouse.co.nz
sales@thl.net.nz | Ph 07 849 9445
FT570
The number of starving people in the world is
increasing. But at the same time large amounts of
grains are going to waste on the way to the consumer.
It is in the poorer regions of the world in particular that
the greatest losses arise shortly after harvesting. To
provide better protection from pests for grain stored in
silos, compressed air specialist BOGE has developed
a method that is as simple as it is effective.
With blueprotect,
BOGE uses
nitrogen from
the ambient air.
This removes the
oxygen from the silo and therefore
takes away the means of survival
for pests and fungi. The method is
carried out without any chemical
agents and is therefore harmless
in food production and does not
cause environmental damage. It is
therefore suitable for organically
cultivated products and brewery
suppliers, for example.
Granary weevils, parasitic fungi,
mice and rats: a large part of the
grain stored worldwide falls victim
to pests and so-called breathing
losses. Oxygen plays a critical part
in this. Lack of oxygen minimises
storage losses. blueprotect is based
on this simple principle. BOGE
feeds a mix of gases into the grain
silos - consisting of almost pure
nitrogen with a maximum of one per
cent residual oxygen. The nitrogen
drives out the oxygen, thereby
removing aerobes, and thus the
means of survival for pests and
fungi. At the same time, the effect
of breathing losses is minimised,
and the risk of smouldering fires is
decreased.
For blueprotect, BOGE uses
nitrogen from the ambient air. A
compressor produces compressed
air close to the silo. It reaches a
membrane filter via a dryer and
combined filter, which separates the
nitrogen (N2) from the oxygen (O2)
and feeds it into the silo. As a main
component of the air we breathe,
nitrogen is available in unlimited
supplies, and is completely
harmless when in contact with
foodstuffs. After use, the nitrogen
is re-absorbed into the ambient air.
This makes blueprotect an attractive
method of pest control wherever
the use of chemical agents is
not permitted or desirable – for
example, in ecological farming or
in the supply chain for breweries.
Malting plants, for instance, have
to ensure that no chemical residues
are left behind in the barley; these
could later find their way into the
beer with the malt when brewing.
The processing is straightforward
for the user: BOGE arranges all
plant components in a container,
so that blueprotect can be placed
flexibly, without special prior
knowledge and in different types of
silos. BOGE analyses the starting
position with the customer to record
the initial nitrogen requirement.
An essential precondition is a
sufficiently airtight silo. For a test
run, BOGE offers a rental container
if required by the customer, with
which the airtightness of the silo
can be clearly ascertained after a
few days.
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