Walt — Simple Man Takeaway
If the dust is escaping, the system is already telling you the air path is broken.
Plain-English Summary
Use this flow when dust collection performance drops, visible dust escapes, baghouse differential pressure rises or falls abnormally, filters blind, airflow weakens, or pulse cleaning stops working. Dust collection affects safety, process quality, environmental readiness, equipment life, and the people breathing the air.
R.E.A.L. firstProve the supplyCapture before changingSeparate pressure from flowHumans remain authoritative
Support-System First-Check Flow
Field Checks
- Confirm the symptom
- Verify DP reading
- Check fan and drive
- Check ducts and pickup points
- Check filters
- Check pulse cleaning
- Check discharge
- Check process duty
Watch Out For
- Treating dust collection as housekeeping only
- High DP from failed pulse cleaning or moisture
- Low DP from torn filters or bypass leaks
- Fan running wrong rotation or loaded incorrectly
- Combustible dust hazards ignored
- Hopper discharge plugged and re-entraining dust
- Wrong filter media for material/process
Reverse-Trace / Ghost Busting™ Decision
if fan command, pulse-clean command, rotary valve, alarm permissive, or discharge logic is blocked.
if DP transmitter, pulse signal, fan feedback, rotary valve proof, or airflow signal drops intermittently.
Recipe / Health Log
Record the good, the bad, and the in-between: product, material, method, machine state, atmosphere, utility condition, settings, timing, symptom, corrective action, and result.
Related Calculators / S.W.A.T. Screens
Related Handbook / Sourcebook
Walt says STOP! - Safety First
Make these checks prior to proceeding.
Stop and follow site procedures when combustible dust may be present, confined space or elevated work is involved, fans/rotary valves/screws/pulse systems can start automatically, or respiratory/PPE requirements apply. Dust can create health, fire, explosion, and compliance hazards depending on material and process.