Paper Technology International 2024 - Journal - Page 64
PAPERTECHNOLOGYINTERNATIONAL
Figure 3: (Left) Picture of Rotor from Spain which has been
retro昀椀tted.
We offer our customers a one-stop service for vacuum
pumps, which means that all the necessary steps (including spare
parts) are carried out in-house.
In addition to reconditioning water ring vacuum pumps
from all manufacturers, we also overhaul and optimize rotary lobe
systems, Roots blowers, centrifugal pumps and headbox pumps.
centrifugal pumps and headbox pumps.
The vacuum pump service is carried out both, in Germany
and Finnland.
Figure 4: (Below) On-Site analysis of vacuum pump by Richter
service engineers.
This is just one example of many in which we have helped
customers to optimize their old units and thus drastically increase
running times. This often goes hand in hand with high energy
savings.
The non-incurring replacement costs due to reduced
installation and removal intervals are added to this.
The picture (Fig.3: above before & after) clearly shows the
work and optimizations we have carried out.
Vacuum pump service since 2005
We support our customers also also in the part of vacuum
pumps to save energy. Over the years, capacity losses/increased
power consumption can occur, which can be caused by a variety of
reasons such as deposits, corrosion, erosion or cavitation.
Based on this fact, we recommend that our customers
constantly check their vacuum system, and we support them with
this. We usually start with an on-site analysis of your vacuum
system. At this test, the inlets of the pumps are opend and will be
started to opearting speed while several measurments are carried
out. Following the measurement, you will receive a detailed report
on each vacuum pump, including details of the losses in kW.
The condition of your vacuum pump is compared with the
condition of a new vacuum pump (capacity & power consumption).
In many cases, our customers were downright shocked when they
realized how much energy was being lost in their vacuum system
thanks to the measurement results. Particularly in view of the
extreme rise in energy costs in recent years, an overhaul usually
pays for itself in less than six months (ROI < 6 months).
However, we not only overhaul the vacuum pumps, but also
optimize them - as in all product areas. Also with a view into the
future we use own-developed materials which can even minimize
the annual losses and increase the repair intervals.
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G-Groove-cover (G-Band)
Another sustainable product from Richter. The proven
roll cover technology made out of stainless steel. The grooved
press roll cover is extremely durable compared to polyurethane or
rubber covers. It is applicable for your de昀氀ection compensated rolls
(swimming type & zone controlled) or solid press rolls.
Lifetimes up to 20 years are no rarity, we have just received
a shell for 昀椀rst recovering which was delivered in 1999 from the
Karhula workshop. The wear resistant of the material extends
the grinding intervals, leads to less abrasion and reduces shut
down times caused by repairs or grindings signi昀椀cantly and thus is
optimizing the ef昀椀ciency of the production.
Figure 5: G-Groove from Richter Karhula.
The void volume is constantly high even under big loads,
the cover ensures the best dewatering of the paper web in the nip.
Due to it’s excellent temperature resistance the cooling of the roll
is not needed anymore and water and energy are saved. Damages
can be repaired also on-site, no need for recovering in many cases.
When it comes to bigger damages we offer spot repairs or partial
recoverings.
