Miller Magazine Issue: 135 March 2021

78 ARTICLE MILLER / march 2021 be carried out for all components and the design can be carried out within the framework of the relevant legislation. However, it can be considered that some systems and components have priori- ty over others in terms of both the risk of explosion and the degree of impact. These components are elevators, dust filters, flour mixer, flour finisher, bran finisher, air locks bagging scales and quadro plansifters. The components that are essential for assessment both in Turkey and accord- ing to the European Union legislation are demonstrated in Table 6. As can be seen in the table, it is understood that almost all components in the sector are subject to ATEX evaluation in one aspect and de- signs have to be carried out within the framework of the relevant legislation. 4. Results and recommendations The milling industry is one of the sec- tors most affected by dust explosions. It is a legal obligation in terms of occupational health and safety to evaluate the ATEX assessment of systems and components in both food and feed sector and to make the designs comply with the rel- evant legislation. In this respect, it is recommended that the de- signs of the components and ma- chinery used in the milling sector must comply with the legislation and the end users using such sys- tems should request ATEX certified products from the producers. Figure - 7 Zone in a typical flour plant GOODS ACCEPTANCE WAREHOUSE PACKING FLOUR AND BRAN SILOS MILLING CLEANING GRAIN SILOS PRE- CLEANING ZONE 20 ZONE 21 ZONE 22 NO ZONE (Pursuant to Machine Safety Analysis) FLOUR MILL Table 5. Systems and components in the milling industry for which ATEX assessment can be made Seed Cleaners Milling Machinery Conveying Machinery Packaging Machinery Storage Systems Grain Separator Roller Mill Elevator Flour Mixer Silo Aspiration Channel Quadro Plansifter Screw Conveyor Carousel Packaging Conditioner Stone Separator Starch Separator Tube Screw Conveyor Bagging Scale Trieur Bran Finisher Blower Pump Discharger Color Sorter Impact Detacher Air Lock Control Plansifter Scourer Flour Finisher Chain Conveyor Distributor Air Recycling Tarar Hammer Mill Dust Filter Intensive Dampener Micro Feeder Fan Tubular Magnet Cyclone Table 6. ATEX elements to be considered in various product groups Related product groupsRate (%) ATEX element Seed Cleaners Milling Machinery Conveying Machinery Packaging Machinery Storage Systems Engine • • • • • Dye • • • • • Belt • • • • Roller • • • • • Plain bearings • • • •