Paper Technology International 2024 - Journal - Page 133
PAPERTECHNOLOGYINTERNATIONAL
Optimum resource ef昀椀ciency and quality enhancement with
Voith’s DuoCentri NipcoFlex technology
Voith’s shoe press system also optimizes the PM 6 in
terms of energy and water savings. Here, the DuoCentri NipcoFlex
technology proves its worth, enabling maximum dewatering of the
paper stock, accelerating dewatering and shortening drying time,
thus increasing production speed and resource ef昀椀ciency. Thanks
to a uniform and specially designed pressure shoe, higher wet
compaction is enabled, thereby improving strengths compared to a
roll press.
The optimized dewatering reduces energy consumption
and has a positive effect on water consumption. The DuoCentri
NipcoFlex enables ef昀椀cient dewatering of the pulp, resulting in a
lower moisture content of the paper web. This can reduce water
consumption in paper production.
Sustainable heat recovery and energy ef昀椀ciency with the
EcoHood dryer section hood from Voith
The Voith EcoHood dryer section hood helps increase the
energy ef昀椀ciency and sustainability of the PM 6. Its closed design
fully insulates the dryer section while allowing safe access for
operation and maintenance. Compared to open or less well-sealed
hoods, the EcoHood’s tight and modular design allows little heat
and moisture to enter the hall. As a result, almost all the water that
evaporates during paper drying can be used ef昀椀ciently in the heat
recovery system. This not only has a positive effect on the hall
climate, but also actively protects the building.
Two factors play a decisive role in the ef昀椀cient use of the
energy used in drying. First, it is important to capture as much vapor
as possible so it can be used for heat recovery. Second, the dew
point of the hood affects the power and steam consumption of the
process air system. The higher the dew point, the lower the required
supply and exhaust air volumes and thus the electricity and steam
consumption. The EcoHood meets these requirements and enables
optimum operating ef昀椀ciency for multi-stage heat recovery systems,
for example, for hall heating, supply air and water heating or in
combination with a heat pump.
The issue of energy costs will undoubtedly continue to
preoccupy the industry. In view of the energy crisis, it is becoming
clear how urgently manufacturers need technologies that help them
save resources. The example of Schoellershammer demonstrates
the possibilities. After several years of ef昀椀cient plant operation,
the paper manufacturer is very satis昀椀ed with the technology. The
investment in Voith’s proven and ef昀椀cient solutions has paid off.
REFERENCES:
1.
Cf. Navigant Energy Germany GmbH (2020): Energiewende in der Papierindustrie, p.10 ff, URL:
https://www.bmwk.de/Redaktion/DE/Downloads/E/energie wende-in-der-industrie-ap2a-branchensteckbrief-papier.pdf?__blob=publicationFile&v=4.
2. Federal Environment Agency (2023): Pulp and Paper Industry, https://www.umweltbundesamt.de/themen/wirtschaft-konsum/industriebranchen/holz-zellst
off-papierindustrie/zellstoff-papierindustrie#anlagenbestand-in-deutschland.
3. The Paper Industry (2020): Water and Residue Survey in the German Pulp and Paper Industry 2020, Wochenblatt der Papierfabrikation 6th edition 2022, p. 58.
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