Patent ID: 6305189
Filing Date: 2001-10-23
Classification: A23L,C02F,F25C,Y02A

Abstract:
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.