24 PRODUCTS & SERVICES
Pulp Paper & Logistics
Measure paper strength potential with greater precision
N
ew capabilities have been added to the FS5 fibre image analyser offered
by Valmet, enhancing a paper maker’s ability to measure paper strength potential. These features are said to take the laboratory testing of pulp and paper fibre samples to a new level. Launched in 2013, more than
60 Valmet FS5 analysers are now in use, continuing Valmet’s 30- year fibre analytics history with more than 1,000 fibre property measurements delivered. Fully meeting the ISO fibre
length measurement standard requirements, the analyser is said to be simple to use with no lengthy training needed. Easily measuring the fibre properties of 100 samples in an eight-hour
shift, the automatic consistency adjustment eliminates operator error by allowing samples to be inserted without any special preparation. Analysers are individually
customisable, equipped with only the required measurements and easily programmable for analysis and reporting. Maintenance requirements are minimal and no on-site calibration is required as each unit is calibrated with an accredited calibration tool at Valmet’s production centre at Kajaani in Finland. The strength potential of the pulp can now be predicted easily from the process samples. Better understanding of the characteristics of the fibres helps paper makers to manage the process and get targeted end
product quality by optimising the blend and using less energy, for example, in grinding. “The new gravimetric
coarseness feature in FS5 has been accepted very well by our customers,” says Tuomo Kälkäjä, product manager for Valmet FS5. “The true coarseness value is an important value which predicts the paper structure and now it is possible to get this result easier and faster than ever before without tedious and time-consuming sample preparation. Based on user feedback
Valmet has implemented improvements to the operator interface, including customisable
measurement templates and reports. Valmet FS5 is now easier than before to use in regular mill testing, and it also meets the requirements of research laboratory use. The increased capabilities offered by these new measurements and improved interface are also available as upgrades for existing users.
Dry cake measurement improves dewatered sludge quality in wastewater treatment
A device for measuring dry cake solids for dewatering control in waste water treatment complements Valmet’s wastewater control range. The Valmet DS’s low-power
microwave technology enables stable and accurate measurements, which can be utilised by the feedback control to optimise polymer dosage and centrifuge. This decreases energy consumption through better torque control. “The Valmet Dry Solids
Measurement helps our customers take their performance forward,” says
July/August 2016
Internet functionalities allow full access to the measurement data, alarms and diagnostics that are all remotely accessible. The TZ Osbourne wastewater
Jarmo Havana, product manager at Valmet. “Remarkable polymer and
energy savings can be achieved through continuous and reliable solids measurement. By maximising drying efficiency to a target dry cake solids content, additional savings can
be achieved through reduced transportation costs and fuel consumption during incineration.” Valmet DS is typically located in the downfall section of the dry cake with a screw conveying the sample to the microwave sensor chamber before it is returned to the process. The Industrial
treatment plant in Greensboro, North Carolina, USA, has achieved a reduction in polymer of up to 25 per cent, says Valmet. The Viinikanlahti wastewater treatment plant in Finland is also providing good results. “Valmet DS is a reliable online measurement. We can now really see how well the centrifuge is operating,” says Sami Ilomäki, operations engineer at the Tampere Water plant.
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