Molecular distillation device

Abstract

The invention discloses a molecular distillation equipment, which comprises a molecular distillation equipment body and a vacuum tube, the molecular distillation equipment body is a ring structure, the top of the molecular distillation equipment body is connected to the top end head, and the molecular distillation equipment body The inner wall of the inner wall is a heating surface, and the bottom end is provided with a material outlet. It is characterized in that the upper angle of the annular body is 10°-90°. The invention has good sealing effect, low equipment manufacturing and operation and maintenance costs, it does not need a stirring device, the material automatically forms a film along the slope from top to bottom, continuous production, the time for the material to pass through the heating surface is short, and the product quality is good. It has beneficial effects such as saving power resources, high utilization rate of heat energy, and low production cost; if it can be popularized and applied in related industries, it will be a powerful guarantee for related industries to upgrade equipment and improve process technology.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and relates to equipment for distillation and purification of edible oil products, oleochemical products, other various chemical products, and plant extracts and separation of different components, in particular to molecular distillation equipment. technical background [0002] Molecular distillation, also known as short-path distillation, is a relatively new liquid-liquid separation technology that has not been widely used in industrial production. Its application can solve a large number of problems that cannot be solved by conventional distillation technology. Compared with conventional distillation technology, it has the following advantages: 1. Ordinary distillation operates at the boiling point, while molecular distillation can be separated at any temperature as long as there is a sufficient temperature difference between the hot and cold surfaces. Therefore, the operating temp...

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Problems solved by technology

2. Ordinary distillation has bubbling and boiling phenomena, while molecular distillation is free evaporation on the surface of the liquid film, and the operating pressure is very low. Generally, it is on the order of 0.1-1Pa, and the heating time is very short, generally only ten seconds to several minutes.

3. Evaporation and condensation in ordinary distillation are reversible processes, and there is a dynamic phase equilibrium between the liquid phase and the gas phase, while in the molecular distillation process, the molecules escaping from the heating surface fly directly to the condensation surface, and theoretically do not return to the heating surface Possibility, so molecular distillation has no hard-to-separate substances

[0003] The applicant’s associated patent applied for an invention patent on August 7, 2012. The invention patent number is ZL201210277674.7. The molecular distillation equipment includes a molecular distillation equipment body and a vacuum tube. The molecular distillation equipment body is an upper ring larger than a lower ring. The inverted body of the ring is an annular round platform, and the material distributor on the top and the molecular distillation equipment of the cooling water pipe have high manufacturing requirements and complicated manufacturing processes. At the same time, in the vacuum chamber, the manufacturing and maintenance are very complicated.

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