24 PRODUCTS & SERVICES
Ash content added to optical consistency measurement
A
n improved optical consistency transmitter has been developed by Valmet for recycled pulp
manufacturing applications, as well as general stock preparation applications in paper, tissue, and board. The Optical Consistency
Measurement (Valmet OC2R) shares the total consistency measurement method utilised in Valmet’s original Optical Consistency transmitter with the added capability of ash content being available as a second measured value. Particularly in low-consistency measurements, Valmet’s optical transmitters are frequently the only measurement technique to provide
For mechanical and chemical
reliable results. OC2R is said to offer easy and low-cost installation with a measuring probe that makes
insertion and removal possible without requiring special tools or a process stop.
pulp, as well as for recycled fibre furnishes, OC2R is said to be the best choice for control applications, from re-pulping and screening through to the machine chest. “The addition of the ash measurement to total consistency opens new possibilities for recipe management in pulp blending, better broke handling, and reducing machine chest furnish variability. In recycled fibre processing, the benefits of the two measurements include better end product quality with improved strength and optical properties,” said Heikki Föhr, product manager for Valmet Optical Consistency Measurement in the automation business line at Valmet.
New-generation felt with all the benefits of endless designs
A ‘new-generation’ press felt with a patented single-seam design has been launched by Andritz. StrataPress has an integrated seam that makes installation safer and faster, while more efficient water removal reduces energy consumption. It is also available with QS technology for superior sheet smoothness. Enhanced seam flap integrity offers longer life. The felt is specifically engineered for the most demanding locations in paperboard and packaging, graphical, and pulp machines. “With StrataPress SX, for the first time in our industry,
September/October 2019
operating costs,” says Bill Butterfield, chief technology officer at Andritz Fabrics and Rolls. Three distinct warp systems are used in StrataPress SX so that it is suitable for the best performance with graphical, board and packaging, and pulp grades. Also available is the Quick
customers can now enjoy the convenience and safety of seam felts along with the superior machine performance previously only available from premium- class endless press felts. And with
its unique compressibility and nip dampening characteristics, StrataPress SX provides that superior dewatering performance even in the hardest press nip applications, and with reduced
Saturation (QS) feature in which hydrophilic components embedded in the base fabric structure ensure optimised water management. This is said to provide improved start-up behaviour, enhanced profiles and better NIP dewatering throughout the felt’s lifetime.
Pulp Paper & Logistics
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