The causes leading to over-load tripping of Roots blower used to scrub the resin in conical hopper separated regeneration system of condensate polishing treatment for 300 MW units in one power plant have been analysed

finding out the existing problems are as follows:(1) some cracks appeared on the conical hopper of resin separator;(2) the steps of pneumatically sending out the failed resin haven't executed;(3) the amount of resin in each mixed bed isn't identical;(4) pollutant clogging in the exhausted gas pipe;(5) short set time for discharging water from the regenerator.After taking conrresponding measures

all the problems have been solved.