TH21936A - Methods and kits for the separation from liquid mixtures by fractional crystallization. - Google Patents

Abstract

The crystallization tower (70) has an inlet (77) for the medium. That is a liquid flowing in and has a channel (84) where the liquid substance Core and crystal part The melted will be pulled from the outlet. Said at the end of the crystallization process, during the crystallization process, many tubes (75) with closed top ends are also dispensed. Slow flowing liquid mixtures Is a film layer from the top Inside the pipe will Was dispensed with a liquid medium Slowly flowing It is a film layer used for cooling, the liquid medium is supplied through an upright tube (87) and the diffuser (92) provides the medium. The medium flows under the distribution tray (81). The evaporated coolant pressure in the diffusion medium chamber (80) covering the inner chamber of the pipe is Controlled by the control valve plate for the substance Medium in the gas state in which The control disc is used to control the temperature of the crystallization tube wall in order to melt the crystallized layer. The gas medium is introduced through the spigot (96) into the crystallization tower. The pressure may be controlled. By the control tongue plate to To regulate the temperature in which the medium Condensation is formed inside the tube (75) and transmits the required heat for melting the crystallized layer. Each crystallization tower can act as an evaporator or Condensers in refrigeration equipment so that it can Active both the energy that exits Out while cooling and leaving heat from Equipment Auxiliary evaporators can be connected so that each crystallization tower from the many available crystallization towers can be operated. Cooling or power applications The heat to the refrigeration equipment at a particular time can be independently of each other.

Claims (7)

1. Method for separating liquid mixtures by Crystallize sequentially by creating a coagulation layer on one side of the wall (75) of the crystallization tower (S1, S2, S3, 70), the other side of the wall is cooled and The Later fusion of the crystallized layer How have you Characteristic is that the intermediate material is evaporated on the side of the wall (75, 78) for the purpose of crystallization. And the pressure of the gas phase of the medium The medium in the crystallization tower (S1, S2, S3) is controlled in accordance with the desired temperature. For crystallization 2. Method according to claim 1, with the characteristic that the medium is slowly flowing down. It is a film layer bathed along the wall (75, 78) 3. Method of claim 1 or 2, with the characteristic that the medium being fed for melting, crystallized layer or To cause drops in the state The gas will condense on the wall. And the pressure of the gaseous medium is regulated to correspond to the required temperature at the wall. 4. Method of claim 2 or 3, with the characteristics of using at least one crystallization tower for crystallization and Use at least one more tower for melting crystals and have the characteristics that the medium in the gas state. Happened in the tower fell One crystal during crystallization is compacted. And condensed for the melting of crystals in another crystallization tower 5. Method of claim 4, with the characteristic that during the melting process The crystallization tower is supplied with energy. Additional external heat and the resulting heat energy are taken. 6. Method according to claim 5, characterized by that external heat power is supplied by evaporation of the medium belonging to Liquid in the auxiliary evaporator 7. Method of claim 5 or 6, with the characteristics that Excess thermal energy is transferred by means of auxiliary condensers (55) 8. A set of equipment for operating by any of the claims 1 to 7 consisting of at least a crystallization tower (70). 1, covered tower (71), where the crystallization area (74) is separated from the intermediate area (80) by the wall (75) through which the crystals can settle on the wall and the area of the substance. Intermediate (80) has at least one inlet (95) and at least one outlet (94) for liquid medium. With the feature that At least one connection channel (96) has been provided for phase inlet and outlet. The gas of the mediator and a path (33; 18, 28; 19, 29; 20, 30) has been established for adjusting the gas phase pressure in the crystallization tower 9. Equipment set according to claim 8 prescribed Characteristic by providing 1 auxiliary evaporator (53) 1 0.A set of equipment according to claim 9 that is characterized by having 1 auxiliary condenser (55) 1 1. A set of equipment according to any claim from Clause 8 to Clause 10, characterized by that a wall was formed from at least one pipe (75). It has a vertical and one end closed (69) and a route (87) is provided for the transmission of a liquid medium to the closed end (69) where the liquid can Flow slowly In class Film shower wall 1 2. A set of equipment according to claim 11, characterized by that the route for the liquid medium is an upright pipe (87) 1. 3.A set of equipment according to any claim from Clause 8 to Clause 12, characterized by that the upright pipe (87) is positioned at a distance from the wall (75) by the spacer (91) 1. 4. A set of equipment according to any claim from Articles 8 through 13, consisting of a number of pipes that are tightly connected to the base (85) and with a top section. Through the opening (82) In the dispersion tray (81), a gap (83) is provided, through which the liquid mixture for fractional crystallization flows through the channel. Empty down Along the outer (76) wall of the pipe (75) 1 5. A set of equipment according to claim 14, characterized by that the raised pipe (87) extends into the area under Dispersion tray (81) 1 6. A set of equipment according to any of the claims 8 to 15, characterized by that a flow deflection device (88), such as a flow deflection pipe, is It is placed at the lower part of the wall (75) where the fluid film layer is slowly flowing down and the cavity (88) is placed between the wall (75) and the deflection device (88) 1. 7.A set of equipment according to any of the claims 14 through 16, characterized by that the cover (73) of the cover (71) is placed over the distribution tray (81).