How innovative roll handling equipment can increase safety and create energy savings in paper mills - Paper Technology International 2023 - Paper Technology International 2023 - Flipbook - Page 141

How innovative roll handling equipment can increase safety and create energy savings in paper mills - Paper Technology International 2023

PAPERTECHNOLOGYINTERNATIONAL
How innovative roll handling equipment can increase safety and create energy savings in paper mills - Paper Technology International 2023
impact on stoppers. In situations where the roll speed is high,
e.g., on winder decks, the pads are most effective in two
separate rows, for example, in front and behind separation
stoppers.
For the convenience of different roll handling
applications, MoveRoll Braking Pads are available in different
standard lengths but can also be tailored to individual
requirements. The Braking Pads are available in two different
versions, Magnetic and Non-Magnetic Bottom. The Magnetic
Braking Pad has a very thin layer of strong magnetic matting
and is suitable for applications where the roll handling surface
is metallic. In other applications, paper mills have used the
Non-Magnetic version.
In some cases, the rolls are heavy and need to be
stopped completely, the Braking Pad alone cannot achieve
this alone, therefore another product is needed.
A mechanical Receiver has typical been the most
common solution to this, however, Mechanical Receivers
are often costly, require continuous maintenance, and in
some applications can even damage the paper roll, even resulting
in material loss. In more serious cases the safety of operators has
been a challenge due to rolls bouncing back .
To resolve the above issues in such roll handling
applications MoveRoll has created another patented innovative
product called the MoveRoll Zero Energy Receiver.
How does MoveRoll Zero Energy Receiver increase safety in
paper mills?
MoveRoll Zero Energy Receiver is the smart solution
to cushion roll impact. Meant for low-frequency roll handling
applications, the patented Zero Energy Receiver is equipped with
special self-inflating roll handling cushions. The material of the
cushions is flexible and prevents rolls from hitting the metal frame of
the Zero Energy Receiver, hence roll damage is avoided. Notably,
the Zero Energy Receiver does not need any energy sources to
absorb the kinetic energy of paper or board rolls, therefore many
problems common with traditional roll receivers are easily solved.
As mentioned above, traditionally, paper mills use steel stops,
pneumatic stoppers, or mechanical receivers to catch rolls that come
down ramps or sloped floors. These rolls move in an uncontrolled
fashion and gain speed before they hit
such inflexible stopping equipment. The
rolls can bounce back and forth heavily,
again resulting in a potentially dangerous
work environment, easily damaged
rolls and longer roll settling times than
necessary.
In contrast, the soft cushions of
the patented Zero Energy Receiver reduce
the kinetic energy on average by more
than 75 %. Since the cushions absorb
the kinetic energy of the rolls, they hardly
bounce back and forth at all. Thus, the
risk that paper mill staff could get hit by,
or be crushed, between paper rolls is
significantly lowered.
Figure 4: Zero energy receiver.
In applications where paper rolls are very heavy or have
a high incoming speed , combining the MoveRoll Braking Pad
and MoveRoll Zero Energy Receiver has been the best solution
to ensure safe receiving of the roll.
Figure 5 (below) shows a typical installation where the
combination of these two products is used to give optimum handling
performance. The Braking Pad has two functions: Firstly, it reduces
the kinetic energy of the roll before hitting the Receiver and,
secondly, prevents the paper rolls from bouncing back to the winder
deck area.
The Zero Energy Receiver will cushion the roll gently and
stop it to the belt conveyor without any damage. All this is achieved
with zero energy consumption, as the receiver does not require any
air supply to function.
Figure 5: BP-Zero energy.
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