Spiroflow 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 legislative changes made by the European Commission in February 2020 , in classifying titanium dioxide as a suspected carcinogen ( cat 2 ) by inhalation . The regulation becomes official on 1 October 2021 , meaning that businesses handling TiO2 will need to upgrade the containment of their processes so that operators are protected . Even products containing as little as 1 percent 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 that cannot be achieved with other raw materials . TiO2 is also used in many other consumer products such as foods , pharmaceuticals and cosmetics . Handling TiO2 in a production environment can be problematic , particularly in conveying , where due to its cohesive properties , equipment such as screw conveyors can stall and ultimately fail . Dust |
and containment is also a major consideration . Spiroflow regularly provides solutions for handling TiO2 through either its flexible screw or aeromechanical 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 flatleading 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 halts in production . 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 a great choice for conveying TiO2 because any dust created during conveying will be all contained within the conveyor itself . This conveyor is contained , runs quietly and with minimal energy , which also makes it a superior choice for conveying larger volumes of TiO2 . “ As material handling specialists , we have always understood the need to test materials and to offer a proven solution to the customer ,” said Jeannette Carter , a regional sales manager at Spiroflow with a NEBOSH National General Certificate in Occupational Health and Safety . |
“ With many years of experience , we ’ ve trialled and developed products to ensure the smooth running of difficult cohesive materials such as titanium dioxide , resulting in us developing our flexible screw conveyor , which prevents the smearing and potential build-up of material in the conveying tube . Typically , we ’ d still select the aero-mechanical conveyor when |
presented with applications , but use the proscrew in a steel tube as a metering device to offer a guaranteed solution . Containment in delivery , either from a bulk bag or sack tip , is a major consideration and one we handle on a daily basis .”
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