True Belt Filter Press blinding can occur outside of the control of the belt filter press room.  System designs and flow capacities can limit the belt press operator's ability to optimize the dewatering process.  We have developed a full proof test to determine if optimized dewatering is possible.

Since 1992 we have been cleaning belt filter presses.  The test is simple.  The belt press operator is asked to get his presses running the best "he knows how".  Once this operational position is acquired, we notate ALL settings on the press.  Using sludge as the only variable, we increase its flow to the point where it no longer can be held on the machine.  (All sludge day tanks and polymer batches must be at a full position or at least be able to provide 60 minutes of process flow.) This is an obvious position, since sludge will typically be squeezing out of the sides of the machine.  Notate increase of sluge flow value.  We recover the machine and getting running at "operator's optimum".

Polygone is injected into the washwater lines for 20-30 minutes to complete 3 revolutions of the belt, minimum.

We note all changes that we see and then steadily increase the sludge flow to the previously failed value.  Amazingly, 95% of all presses will permit a 15-20% increased flow with a Polygone cleaning.

Clients who use Polygone while processing, can determine the success.  Simply turn off the Polygone pump, and if you have true process blinding, the press will again lose productivity.  A Demonstration Test Sheet is available for you to test your belt filter press productivity.