For the production of PVC Film, Plantech provides complete and automated solutions for the storage, handling and dosing of powders.
Plants fundamental for feeding process machines like Turbomixers or Extruders. The supply of storage silosincludes ladders and walkways, product filling pipes, dedusting filters, safety valves, level indicators and vibrating cone extractors if the products contained are not very flowable.
When the raw materials are available in bags or Big Bags, Plantech provides its own manual bags emptying stations, and Big Bags emptying stations, provided with hoist or spider for direct loading and using forklift truck.
In both cases the machines can be provided with specific optional devices like flat bottom extractors, pneumatic vibrators and fluidisation devices.
The dosing stations, used to supply the additives necessary accurately for formulation of the Dry Blend, are designed for powders and liquids, using dosing units and weighing scales, while the bags containing the pre-weighed additives which complete the formulation, are automatically inserted in the turbomixer for each batch by means of a special belt.
In PVC Filmproduction plants, the choice of the handling system is assessed according to the distances to be covered, the type of product to be handled, the flow rates required and the type of process to be served.
The system mainly used is the pneumatic conveyor, for the extraction of products from silos and from scales for feeding to the weighed cyclone filters upline of the turbomixers or pressurised for filling the storage silos from the Big Bags emptying stations.