Organics Recycling & Composting Control Systems

Organics recycling and composting is where Strule started, and it’s still the environment Jonathan knows best. These sites are hard on control systems: grinders and shredders load the drives hard, trommel and star screens jam on wet material, and biofilters and aeration blowers have to hold a set point in an atmosphere that’s actively working to corrode the wiring and terminals around them. Hydrogen sulfide, ammonia and condensation get into panels that weren’t specified for it, and intermittent faults on these lines are rarely where they first appear to be.

The failures that cost the most uptime are usually sequencing and interlock problems — a jam-detection trip that won’t reset cleanly, a screen that stalls the infeed conveyor behind it, a blower that short-cycles instead of holding a steady aeration rate. Moisture and temperature control drift out of tolerance slowly enough that nobody notices until a pile goes anaerobic or a permit limit gets close. We find the fault that’s actually costing you tons per day, fix the root cause instead of the symptom, then tune the sequencing and alarms so the plant runs predictably inside its air permit. A grinder or shredder that’s started tripping its overload more often than it used to is nearly always reporting a wear or feed problem upstream, not a fault in the drive itself. Treating the symptom by bumping the overload setting just trades a nuisance trip for a real motor failure down the line.