12 ANDRITZ


The next generation in screening and fractionation


Pulp Paper & Logistics


W


ell-known with more 5,400 pressure screens installed


in stock preparation lines worldwide, Andritz has launched its latest evolution in screening, the PrimeScreen X. The design of the new screen builds on the successes of the ModuScreen family, but offers key benefits. Its improvements in energy efficiency, screening performance, and maintainability are said to be significant. Sampo Köylijärvi, global product manager for RCF screening and flotation systems at Andritz,


November/December 2019


Improvements in energy efficiency, screening performance, and maintainability are claimed for the latest PrimeScreen X from Andritz. PPL reports


says, “Focusing on customers’ needs and market demands whilst benefitting from our long- term know-how in screening, the PrimeScreen X passed through all stages of product development – from the initial engineering design to prototyping and two years of mill testing – in most demanding OCC applications.” The PrimeScreen X machine, pictured above, is ideal for all types of screening applications, regardless of the raw material. The main design improvements of the new screen include: Top-feed stock inlet – The design


uses gravity to quickly remove heavy contaminants. With this top-down design, abrasive contaminants that cause wear to


the rotor and screen basket are not forced to flow slowly upwards through the entire screen. Top- down also improves the removal


Flow Consistency l/min


% Inlet 15,073


PrimeScreen X Accept 14,059 Reject Inlet 1


1,515 5,962


Competitor


Accept 14,346 Reject


1,615


3.25 3.11 4.50 3.20 2.88 4.70


Mass t/d


705.4 629.6 98.2


735.5 595.0 109.3


Table 1: First samples from the PrimeScreen X compared to a competitor’s screen (screens running in parallel)


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