lsn seires double-net concentrator suits concentration of any kinds of pulp stock.it has the advantages of extremely low energy consumption(only accounting for 1/5-1/10 of screw press washer),high concentration of output(if there is a technological requirement,the concentration can reach over 40 per cent).it enjoys a wider scope for pulp input concentration for model lsn 1 pulp input concentration can be 6-15 per cent and for model lsnⅱ pulp input concentration can be 0.5-5 per cent).