South African board and corrugated cardboard producer Mpact is experiencing benefits from increased capacity and reduced energy requirements by using Voith’s InfiltraDiscfilter with HiCon 2.0 technology.
The South African firm is the first of Voith's customers to use an InfiltraDiscfilter with HiCon 2.0 technology after a machine rebuild.
Mpact technical manager Maggy Odayar said: "The disc filters have proven to be reliable, efficient and highly flexible in respect of inlet stock consistency and stock flow. Throughput is 15% higher than the planned rate.”
In 2015, Mpact has started using recovered paper fibers instead of the sugar cane waste product bagasse in a bid to convert the paper mill and make production 'greener'.
As part of this effort, the firm designed a machine rebuild to increase the machine speed from 700 to 930 meters per minute and boost production capacity by 40%.
For the project, Voith has upgraded the complete stock preparation unit.
The project also involved addition of a vertical LC pulper with a capacity of 800 metric tons per day to the existing drum pulper,
The firm said in a statement: “The filters equipped with HiCon have already demonstrated in a large number of applications in both new builds and upgrades that they are robust enough to readily handle high and strongly fluctuating stock consistencies in the inlet.”
The new technology, which is a part of Voith's BlueLine range, allows the consistency of the stock flow in the inlet to be increased as well as raises throughput by up to 20%.
In 2013, Voith has installed VariFlex winder at Mpact’s PM 3 in Felixton mill. The winder has a maximum operating speed of 2,500 m/min.
Mpact uses the PM 3 machine to produce various grades of corrugated base paper in a basis weight range of 90–190 g/m2.
Image: The Voith’s HiCon 2.0 technology with InfiltraDiscfilters. Photo: courtesy of Voith GmbH.