Concentration of magnesium chloride solution in experimental equipment with a descending film
The aim of the work is determination of production temperature and salt regimes for an industrial three-vessel vacuum evaporation unit for concentrating magnesium chloride solution, included within technology for artificial carnallite preparation. A scheme is provided, and a unit developed and manufactured for this purpose is described. Experimental data are provided that were obtained during magnesium chloride solution concentration within a single-tube evaporation unit with a descending film (unit) under different regimes. A distribution device is selected for provision of stable film flow over the inner surface of a heat-exchange tube. The possibility is confirmed by experiment for the first time of using equipment with a descending film for concentrating actual magnesium chloride solution. Data are obtained for the limiting salt content within the concentrated solution providing operation of the unit in a crystallization-free regime.
KeywordsHeat Transfer Coefficient Steel 12Kh18N10T Heat Exchanger Tube Carnallite Steam Condensate
- 1.V. I. Leverash, Experimental Study of Heat Transfer to a Liquid in Evaporation Equipment with a Descending Film Applied to Operating Conditions of Distillation Demineralizing Equipment: Author’s Abstr. Diss. Cand. Tech. Sci., Moscow (1969).Google Scholar
- 2.L. D. Berman, “Experimental study of stem condensation in the presence of gases,” Teploenergetika, No. 4 (1956).Google Scholar
- 3.S. S. Kutateladze and V. M. Borishanskii, Heat Transfer Handbook [in Russian], Moscow (1959).Google Scholar