Spiroflow, Clitheroe, UK, is taking steps to advise its customers on its range of conveying solutions that are suited to the safe handling and containment of titanium dioxide (TiO2) powder. The move comes as a result of legislation changes made by the European Commission in February 2020, in classifying TiO2 as a suspected carcinogen (cat 2) by inhalation. The regulation becomes official at the beginning of October 2021, which means that businesses handling TiO2 will need to upgrade the containment of their processes, so that their operators are protected. Even products containing as little as 1% TiO2 will need to be included.

TiO2 is an inert inorganic compound that is used as a white pigment in many industrial applications. These applications include the manufacture of paints, coatings, printing inks and wall coverings where TiO2 plays a critical role in providing essential product properties: whiteness, covering power, brightness, stability and durability of colour. TiO2 is also used in many other consumer products such as foods, pharmaceuticals and cosmetics. Handling TiO2 in a production environment can often be problematic, particularly in conveying, where equipment such as screw conveyors can stall and ultimately fail. Dust and containment is also a major consideration. Spiroflow regularly provides solutions for the safe and efficient handling of TiO2 through its flexible screw or aero-mechanical conveyors. A flexible screw conveyor, having only one moving part - the spiral - makes it ideal for conveying TiO2. The pro-screw in the tube will move round in a spiral formation, the flat-leading edge and closer gap tolerance between the tube and the screw both assisting in reducing the product residue and smearing in the conveying tube, thereby limiting production stoppages.

Spiroflow’s aero-mechanical conveyor creates an airstream which moves the product up the tubes along with high-speed discs and a rope. TiO2 is conveyed in the air stream created by the rope and discs in the tube where the product is handled gently. This conveyor is contained, runs quietly and with minimal energy, which also makes it a popular choice for conveying larger volumes of TiO2. www.spiroflow.com
 

A Spiroflow bulk bag unloader, fitted with delumping system, discharges titanium dioxide

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