Method and Device for drying Concentrated Radioactive Waste Water Evaporation installations

摘要

Method and Device for drying the concentrated Evaporation installations.Is the use of a container (1) with heating Stirrer (3) and a casing (2), which is connected with a circulation Circuit (11) to a drier (10) of two Cylinders (19).The Concentrated Wastewater with a maximum of 20% Solid substance is heated to 60 025 C and mix to adjust the Filterable Solids content at 5%.The Concentrate through the Metering pump (14) volumetrically and adjustable two passes to the dryer cylinders, where it dries in a quantity of 10 to 20 l / M of useful surface of cylinders per hourThe temperature of Cylinder 025 210 160 C and assuming Residence times between 7 and 18 seconds. The Drying is performed to a Depression between 0.8 and 0.1 bar.The Concentrate is adjusted to a pH value between 3 and 8.The Feeding Cylinder is carried out through a tube (16), Mobile PendulumAnd the Concentrate is extracted by a discharge Hopper (30) and installation which has heating mechanisms vibrators (31) and (38).A Maintenance Facility of the depression in the filter and wash the condensation completes the set.