Plaugging hampers solid' removal

摘要

We must remove solid (as a 40-to-60 wt.% slurry)from an evaporator.The solids are crystals that are not especialy fragile;they don't pose adhesion or abrasion problems.But,the stream cannot easily be throttled without plugging.We currently change the open time of an on-off plug valve,which is on a 2 min.