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Our company is active in environmental protection,
too, so we developed a „hydraulic micro-blasting
process” to recycle rubber waste. This is a
procedure you can use to produce elastic,
microporous particles which can be considered as raw
material in various mixtures.
Recycling rubber waste is a very significant problem
as 800-900 million rubber tyres wears out and nearly
so many new tyres are sold every year.
A great amount of elastic rubber is mainly recycled
by srhedding today. However the greatest
disadvantage of this process is that during grinding
heat generates on the surface of the granule and
therefore an oxidized coating develops on it. The
oxidized coating hampers the use of the recycled
granule as raw material, so it can only be used as
additive (in a few %) and only in case when the
surface of the granule is adaquately pre-treated
before the elastic material and the rubber granules
are mixed.
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Click on the logo to see the details of the
technology and the grinding. |
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Based on the world-wide known high pressure water
jet technology (UHPWJ), the experts of MICRO EUROPE
Ltd. developed the high pressure water jet
micro-blasting technology (later on referred to as
MBHW), and in the frame of the
GreenRuBBeR
Project a
grinding prototype machine was built. The elastic
waste can more effectively be ground in the new
process and the oxid-free specific surface of the
granule is much bigger compared to what we can reach
with the existing technologies. Owing to these
improved conditions the recycled particles can be
used as raw materials (upto 5-50 %) together with the
primary materials as raw rubber and the
thermoplastics.
The
video about the micro-blasting technology can be
watched
here.
The project was executed within the frame of
EUROSTARS_HU_07-1-2010-0079 support
agreement of the National Development Agency.
The waste is ground at ambient temperature in the
course of this new process without heat generation
on the surface of the granule. High pressure water
jets grind the rubber, they penetrate into the
flexible material and bring forth micro-blasting.
The surface of the particles produced in this way is
big, special and oxid-free so these particles can be
mixed without pre-treatment and they can actively
participate in the mixing procedure with the other
products.
The used tyres are separately (tread, side-surface,
butyl, etc.) processed with the high pressure
micro-blasting technology into micro-sized rubber
particles at normal temperature, without mechanical
shredding, while the steel cord can noncontaminatedly
(rubber-free) removed, without being cut.
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