Page 107

Libroplantasingl

GLOSSARY OF EQUIPMENT 106-107 • The pipes for light material captured in the suction hoods must not be less than 350 mm in diameter to allow passage of flexible components of film plastic and P/C with large and intermediate sizes (maximum 600 x 600 mm). • Regulation of flow rates/speeds must be performed using a valve at the system fan outlet and by changing the air inlet sections at the capture hoods. • In some cases deflection curtains are needed in the inlet and outlet mouths of the capture hoods in order to optimise sorting performance. • The air filter sleeves are made of filtering fabrics. The aim of these sleeves is to provide a filtering surface proportional to the air flow to filter and the content of dust particles and other elements contained in the air. Normally for film capturing facilities approximately 1 m2 of filtering surface is needed for every 300 m3/h of suctioned air, such that for fan suction units that can suck between 15,000 and 40,000 m3/h of air, large sleeve filters are needed, normally with 100 to 200 m2 of filtering surface, with a reserve of 25%. 8 8. Alveolar valve separation system. LIGHT WEIGHT PACKAGING SORTING PLANTS 8


Libroplantasingl
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