Troubleshooting
Low Cake Solids
Dry-solids percentage below expectation
The press runs steadily but the measured dry-solids content of the cake is consistently below the design or historical value. Low cake solids raise disposal weight and cost, so the goal is to recover the missing percentage points through conditioning and compression tuning.
The symptom
The press runs steadily but the measured dry-solids content of the cake is consistently below the design or historical value. Low cake solids raise disposal weight and cost, so the goal is to recover the missing percentage points through conditioning and compression tuning.
Causes and corrective actions
| Possible cause | Corrective action |
|---|---|
| Sub-optimal polymer type or dose | Optimise dose and consider a polymer better matched to the sludge. |
| Residence time too short | Lower screw speed within torque limits. |
| Insufficient compression | Raise back pressure to the point before filtrate clouds. |
| Variable or dilute feed | Stabilise and, if possible, thicken the feed. |
| Worn screen or screw wear edges | Inspect rings and flight wear; renew if worn. |
RF Series Screw Press
Self-Cleaning Ring Disc Filter Elements
Fixed and moving stainless steel rings form the filtration gaps and keep them clear continuously — no filter cloth, no clogging.
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