Flour milling uses compressed air for pneumatic conveying, sifting, packing and process control. The environment carries fine flour dust, which is both a hygiene concern and an explosion risk, so the system must be specified with care.
Key applications
- Pneumatic conveying of wheat, flour and bran
- Sifting and purifying systems
- Bag filling and sealing
- Control and valve actuation
Air quality and safety
Product-contact air must be clean, oil-free and dry to prevent contamination and clumping. In dust-handling areas, static-safe design and appropriate electrical ratings are essential to manage the explosion risk.
System design
Use oil-free compression with drying and filtration, separate instrument air from conveying air, and provide redundancy for continuous milling. Heavy-duty intake filtration protects the compressor from flour dust.