Recycling

Granulate silos in plastic recycling

Even complete plastic windows can be recycled in a special process. They are first pulverised in shredders, then sorted into their various components: metals, glass and rubber. The left-over pieces of PVC are chopped up, sorted and granulated into a uniform particle size. At the end of the recycling process, a pure, high-quality PVC granulate is ready for use as raw material for new windows. It is stored in large silos fitted with aeration tubes for uniform colour mixing. For control of production and delivery, the contents of the silos must be monitored via a level measurement.

Level measurement with VEGAPULS 68

The radar sensor VEGAPULS 68 is the optimal solution for level measurement in the mixing silo, where noise and dust – especially during filling – as well as abrasive materials abound. Specially developed for bulk solids applications with unfavourable reflective properties, because it is non-contact, there are no wear problems. Its high sensitivity guarantees exact measuring results even if the granulate has a low εr value.

Level measurement with VEGAPULS 67

VEGAPULS 67 is an economical alternative solution for smaller silos. It has the same metrological features as VEGAPULS 68 and a measuring range up to 15 m.