초록 ▼

An installation is described for continuous crystallization of liquids by freezing. The installation performs liquid preliminary cooling under predetermined temperature; adding gas into cooled liquid and their intermixing; delivering mixed liquid and gas through the refrigerated evaporator; winding

An installation is described for continuous crystallization of liquids by freezing. The installation performs liquid preliminary cooling under predetermined temperature; adding gas into cooled liquid and their intermixing; delivering mixed liquid and gas through the refrigerated evaporator; winding round mixed liquid and gas into the refrigerated evaporator; a pumpless refrigeration circuit, including compressor, water condenser, cooling tower, indirect refrigerated evaporator, expansion valve, low pressure receiver and required refrigeration accessories, for the realization of cooling volumetric crystallization of liquid flowing through the refrigerated evaporator. These processes cause the formation of a bubble slurry with crystal nuclei, gas bubbles and concentrated, unfrozen liquid; preparation means are described for transportation and further storage or use of bubble slurry; immovable means are designed for feasible separation of pure fine crystals and mother concentrated liquid.

대표청구항 ▼

[ I claim:] [1.]1. A system for providing continuous three-dimensional crystallization of liquid, comprising:a liquid supply circuit for supplying the liquid,a mixer supplied with the liquid and a predetermined gas for producing a mixture of the liquid with the gas, anda crystallizer supplied with t

[ I claim:] [1.]1. A system for providing continuous three-dimensional crystallization of liquid, comprising:a liquid supply circuit for supplying the liquid,a mixer supplied with the liquid and a predetermined gas for producing a mixture of the liquid with the gas, anda crystallizer supplied with the mixture of the liquid and the gas for performing three-dimensional crystallization of the mixture to produce ice crystals,the crystallizer comprising at least one evaporator having an outer tube and an inner tube arranged inside the outer tube for passing the mixture of the liquid and the gas, and including a rotating device arranged inside the inner tube for rotating the mixture of the liquid with the gas passing through the inner tube,the rotating device including a rotatable shaft, and at least one wiper arranged on the rotatable shaft contacting the inner tube and having an outer edge and an inner edge, the outer edge being arranged closer to a surface of the inner tube than the inner edge,an attack angle between the inner edge of the wiper and a diameter of the inner tube being selected in a predetermined range to prevent crystal grows on an inside surface of the evaporator.