DEVICE FOR FILTERING, WASHING AND DRYING A SOLID MATERIAL-LIQUID MIXTURE

摘要

In a device for filtering, washing and drying a solid material-liquid mixture, using a liquid permeable filter cloth the mixture is first subjected to a pressure difference above and below the filter cloth, whereafter liquid is supplied to the mixture. The mixture present above the filter cloth is then dried according to the invention using radiation sources, the radiation from which has differing, preferably increasing, wavelengths as seen in the processing direction. The wavelength lies in the infrared range. The applied wavelength is chosen subject to the product for filtering.