A vacuum distiller

A facility for concentrating and drying rheological fluids in vacuum has been developed. The temperature conditions and the capacity of the facility are investigated. It is shown that, when water is distilled from a sample, the output of evaporated moisture, referred to unit volume of the loaded fluid (10 ≤ w ≤ 60%/h), varies in direct proportion to the input power (2.2 ≤ N ≤ 13.2 kW). A sixfold increase in the power reduces the lag (40 ≥ t 1 ≥ 12 min) and startup (80 ≥ t s ≥ 30 min) times of distillation and raises the boiling temperature by a factor of 1.8 (from 32 to 59°C). The operating conditions are optimized so that the specific capacity of the distiller, referred to the input power, is at a maximum of 5%/(kW h).