Industry Problem
Industrial dryers across textile, painting, wood and sludge treatment vent hot, often contaminated exhaust. Recovering that heat lowers fuel cost, but each process has different air-quality rules.
Recovery Principle by Process
| Process | Exhaust | Recommended |
|---|---|---|
| Textile stenter | 120–180°C, humid, fibre-laden | Stainless plate or run-around |
| Spray / paint booth | VOC + overspray | Plate (filtered) or run-around; never rotary |
| Wood drying | Humid, resin-laden | Plate with drain or run-around |
| Sludge drying | Humid, odorous | Run-around coil |
Why Not Rotary Here
Rotary wheels carry over supply-exhaust; for VOC, odour or fibre loads that cross-contamination is unacceptable. Use fixed-plate or run-around so streams stay separate. See where rotary is banned.
Energy-Saving Potential
Stenter and paint exhaust run hottest, giving the biggest gains—often 20–40% firing reduction. Examples: textile stenter retrofit, spray-booth cross-flow, spray-paint exhaust, sludge drying, wood drying.
Material & Design Considerations
Stainless or coated plates for corrosive/humid loads; pre-filtration ahead of the core; condensate drainage; access for cleaning.
Related Products
Plate heat exchangers · Run-around coil · Drying pillar
FAQ
Can I recover heat from paint-booth exhaust?
Yes, via plate (with filtration) or run-around—never rotary, because VOC would carry into supply air.
Get an Industrial Dryer Recovery Design
Call 15753355505 or request a quote with your exhaust conditions.