Removing moisture from sludge, paste and suspension

摘要

In the removal of moisture from a paste, sludge or suspension, the solid substance with moisture is heated to a temperature above that of the temperature of saturated steam at the current ambient pressure. The hot paste, sludge or suspension is then subjected to a mechanical press and the moisture expelled. In the removal of moisture from a paste, sludge or suspension, the solid substance with moisture is heated to a temperature above that of the temperature of saturated steam at the current ambient pressure. The hot paste, sludge or suspension is then subjected to a mechanical press and the moisture expelled. The heat energy is introduced by means of hot process fluid, steam, mixing with a hot solid, by heat exchange with hot process fluid or steam in a suitable receptacle. The method chosen depends upon the nature of the substance which is to be de-moistened, which is pumped into the press where it is also filtered if required.