Paper Technology International 2024 - Journal - Page 151
The Puma II project also meant that a major expansion
program was needed to increase capacity of the Puma I bleached
昀椀berlines in two different phases; 昀椀rst, comprising a capacity
increase of the cooking plants and second, a capacity increase of
the hardwood line, from 3,742 adt/d to 4,080 adt/d. ANDRITZ once
more was chosen as the main supplier to provide the very latest
environmentally leading technology for the capacity increase.
The scope of supply included the modernization of the
cooking, washing, screening, and bleaching processes including the
delivery of the 400th ANDRITZ DD-Washer to ensure the production
of high-quality pulp, maximum operating availabilty, and low
chemical consumption.
Great portion of the capacity increase was done during
the annual maintenance shutdown, of the mill “This was the most
challenging modi昀椀cation ever,” says Vendramini. “It was amazing the
amount of work done by ANDRITZ and Klabin teams to increase the
capacity of the line by 340 t/d. During a 10-day shutdown there were
some 50 tons of piping to be replaced as well as many motors and
pumps to be changed/repowered. This period was a hive of activity
on the hardwood line, ending up with a great result, on schedule,
with safety and quality.
Figure 1: ANDRITZ gasi昀椀cation plant for the lime kiln.
“We were delighted to receive the 400th DD-Washer that
ANDRITZ has produced,” says Vendramini. “We also have the 300th
one on our Puma I line. The washer capabilities are very familiar
to us especially in its 昀氀exibility for higher production rates and low
chemical consumption in bleaching.”
The scope of the second phase also included a debarking
and chipping line, making it the sixth wood processing line from
ANDRITZ installed at the mill. The complete wood processing plant
includes six ANDRITZ debarking drums and six EXL-size HHQChippers, one for each line.
ANDRITZ also supplied leading environmental technology
for renewable and recyclable technology with its SulfoLoop sulfuric
acid plant and gasi昀椀cation technology for one of the Puma I lime
kilns.
“Along with its proven technology in the woodyard, pulping,
and recovery processes, we also chose ANDRITZ because we
want to be environmentally responsible,” says Braga. “This is
why we decided to invest in the new technology of SulfoLoop and
gasi昀椀cation of the new lime kiln.
“Sustainability is another one of the pillars of our strategies
at Klabin; the reuse of raw materials, saving of fossil fuels, and
reducing GHC emissions 昀椀ts 昀椀rmly into our strategy.”
“Klabin’s relationship with the local communities is transparent,
very close, and goes beyond employment of the workers.”
João Braga
Klabin’s Director of Projects
and Engineering
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