2004 - ANDRITZ Vertical volute pumps

RESEARCH AND DEVELOPMENT
Research and Development (R&D) is one of the
Group’s important strategic goals. In 2004, Andritz
invested approximately 21.1 MEUR in the development
of existing and new products and processes.
Approximately 180 people work in the Group’s
research centers in the USA, Austria, Finland, and
France to develop new processes and equipment
and expand Andritz’s technological leadership.
The Divisions of the Pulp and Paper Business
Area focus their R&D programs primarily on
improving fiber quality, increasing energy efficiency,
lowering the investment cost per ton of product
manufactured, lowering maintenance costs, and
reducing the environmental impact.
Some newly developed products of the
Pulp and Paper Divisions include:
Wood Processing: Chip Sampler/Analyzer and
RotaBarker for frozen wood and tropical
hardwoods
Fiberline: ModuScreen A for combined coarse
and fine screening of pulp
Recovery: High Energy Recovery Boilers (HERB)
which considerably increase electrical generation
capacity
Chemical Systems: LMD-Filter for lime mud
dewatering
Mechanical Pulping: optimization of the
Preconditioning-Refiner Chemical (P-RC)
Alkaline Peroxide Mechanical Pulping (APMP)
process for alternative raw materials; Bleach
Commander process control system
Pulp Drying: world’s largest single-line systems;
slab press for flash drying
Fiber Preparation: LC/HC pulpers with reduced
energy consumption; ShortFlow paper
machine approach; RotoWash for ash washing
and fiber recovery
Tissue: Machine Direction (MD) flexibility
for TissueFlex shoe press; PrimeReel
Centerwind for crease-free winding at very low
STATUS REPORT
nip loads to secure highest softness and volume
of tissue paper; PrimeRun for utmost
sheet stability in the dry end; enter the TAD
technology and start up of first TAD machine
Services: Bar-Tec wedgewire screen baskets;
conical refiner plates; digester screen plates;
diagnostics and condition monitoring systems;
screw press shaft machining device
The trend today is toward large, single-line
mills since redundant or repetitive smaller systems
increase both capital and operating costs.
This places extreme demands on the equipment
in terms of scale, reliability, and availability. All
Andritz Divisions are actively developing larger
scale equipment. UPM-Kymmene’s Pietarsaari
mill demonstrates Andritz’s capabilities in engineering
and producing one of the world’s largest and
most efficient chemical recovery systems. Recent
orders from Veracel in Brazil, Hainan in China, and
CMPC in Chile will showcase large-scale Andritz
fiberline and pulp drying systems. The chemimechanical
pulp mill being built in Kunda, Estonia,
will have a large twin wire pulp dewatering press,
and the installation at UPM’s Shotton (UK) showcases
a nearly 1,000 t/d large single-line screw
press and disperser from Andritz for recycled fiber
processes.
The patented TurboFeed system is now generally
accepted to be the most advanced, but
also the simplest and most reliable solution for
chip feeding to a continuous digester. It has been
included on the most recent orders Andritz has
received for continuous cooking systems, including
very large (3,000 t/d) digesters.
In the pulp bleaching area, chemical consumption
has been decreased to record low levels with
Andritz technology. The key elements to achieving
this are the fractional washing capabilities of the
DD Washer and selective removal of hexenuronic
acids (A-Stage Bleaching).
Andritz has done considerable development
work to minimize emissions from the recovery
boiler (particularly NOx) and to improve the reliability
and safety of the boiler while maximizing energy
production of the boiler at the same time.
ANDRITZ 2004
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