Achieving A Consistent PSD In Sodium Sulfite Fine Grinding

Sodium Sulfite (Na₂SO₃) is used as an oxygen absorber throughout many industries. A worldwide packaging company was interested in utilizing Sodium Sulfite as a means to prolong their product's shelf life. For their application, the material was required in a very fine powder form in order to facilitate blending with other materials prior to final processing into the packaging itself. The desired particle size distribution (PSD) was to be 100% below 100 µm at approximately 100 lbs/hr. Other technologies had been researched, such as jet mills, but the equipment could not achieve the same tight PSD bell curve within the specified range.

The Quadro® Fine Grind F10 achieved 100% below 100 micron with a capacity of 178 lbs/hr. The Quadro® Fine Grind F10 is a complete stand-alone process plant that affords benefits to the processor including savings through reduced downtime, minimal space requirements, rapid product changeover and enhanced process efficiency. Other advantages include quick disassembly for maintenance, tool change and cleaning, low power consumption as compared to traditional mills, and low noise. The Model F10 promotes uniform grinding capabilities producing higher yields on specification, and has a wide tooling selection to meet all grinding requirements.