Application: Paper Machine Boil-out
Whitewater, the fine particle slurry used throughout papermaking, travels through pipes and tanks in a paper mill. The whitewater system requires periodic boil-out cleaning to kill bacteria that grows over time. The boil out is accomplished by heating the whitewater to high temperatures, ideally 180–190°F (82-88°C). If these temperatures cannot be reached, mills rely more on caustics, spend more time offline, and lose production hours.
The Problem with Spargers
Traditional sparger or perforated pipe systems make boil-outs inefficient and risky:
- Lower whitewater temperatures – Spargers often cannot quickly or fully reach required temperatures, which lengthens boil-out cycles and reduces production time.
- Chemical Dependency – Because spargers struggle to hold desired temperatures, mills often add excess caustics, raising chemical costs.
- Poor Steam Mixing – Steam collapses unevenly, creating hammer effects that can damage tanks, nozzles, or piping.
- High Steam Loss – Large volumes of steam vent to atmosphere, wasting energy and driving up operating costs.
ProSonix PSX Heater Solution
The PSX Heater delivers hotter, faster, smoother heating—without steam hammer. Installed directly in the whitewater line, it modulates steam injection for precise, efficient mixing and complete condensation.
- Hotter – Achieve and hold desired bacteria-kill temperatures, reducing reliance on chemicals.
- Faster – Heat up to 6–8 times faster than sparging, shortening boil-outs and returning time to production.
- Smoother – Temperature control is stable and consistent, while hammer is eliminated, protecting tanks and piping.
- More Reliable – Self-cleaning design reduces maintenance and ensures dependable operation.
Key Benefits for Mills
- Shorter boil-out cycles = more paper produced
- Lower chemical use and energy costs
- Safer, quieter, operation without hammer