01.12.2016 Retsch GmbH 25
Feeding in comminution material
There is the option of feeding in the comminution material
manually up to a grain size of 10mm, or automatically with
a distributor of type DR 100 (available as an accessory, see
chapter "DR100 with tripod) via the filling hopper E.
The anti-rebound fitting X installed in the filling hopper
prevents the comminution material from being sprayed back
out as it is fed in. This is especially recommendable when
grinding brittle materials.
Do not feed in comminution material unless the machine is
operating.
Mechanical components could be damaged when starting from
standstill and comminution material has already been fed in.
When feeding in comminution material, the anti-rebound fitting
must be installed.
Danger that the comminution material will be sprayed
about.
Unsuitable comminution material
The Ultra Centrifugal Mill is not suitable for grinding:
Minerals with a Mohs' hardness >4
e.g. quartz sands, corundum etc.
Ferro-alloys
Abrasive agents
Comminution material which could form explosive
atmospheric mixtures
Some comminution materials form explosive atmospheric mixtures.
Check the properties of your comminution material.
Explosion hazard
Toxic or other comminution materials which pose a
hazard to health
Dusty comminution material can escape through the filling hopper
during grinding. Use suction extractors if the comminution material
is toxic or otherwise hazardous to health.
Danger of breathing in dust hazardous to health.
We can obviously not discuss every potential problem
here. We therefore ask you to get in touch with our
application laboratory, our specialist field consultant or
one of our representative offices if further questions
arise.
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