Making new out of old
Whole plastic windows including glass, mountings, sealing and reinforcements are chopped into small pieces in the shredder. Afterwards, the metal, glass and rubber are sorted out with the help of special separators. The remaining chunks of PVC are then reduced to a uniform particle size in a cutting mill. The end product of this recycling process is a sorted, high-quality PVC granulate. It is stored in large mixing silos. These are equipped with mixing tubes that ensure thorough mixing of the grey-white PVC granulate. The content of the silo is registered via level measurement. The measurement data provides the basis for regulating production and distribution.
Level measurement with VEGAPULS 68
Typical application conditions in the blending silo are noise and dust during the filling process and abrasive products. That’s why the VEGAPULS 68 radar sensor is the most suitable solution. The instrument is non-contacting and wear-free and was specifically developed for bulk solids with unfavourable reflection characteristics. Its sensitivity is many times greater than that of conventional radar sensors. That ensures accurate measuring results even when the granulate has a low ℇr-value.
Level measurement with VEGAPULS 67
VEGAPULS 67 is an economical alternative solution in smaller silos. It has a measuring range of 15 m (49 ft) and otherwise the same metrological features as VEGAPULS 68.
