A continuous traction type omentum microwave evaporation method and device

Abstract

The invention provides a continuous traction type omentum microwave evaporation method and device, using an endless mesh belt, driven by a group of rotary traction rollers, positioned by dipping rollers, and when immersed in the material liquid, the continuously moving mesh The material liquid mesh is formed by pulling the material liquid, and it passes through the microwave resonant cavity in a horizontal reciprocating and layer-by-layer transport mode, so that the material liquid mesh absorbs microwave energy in a uniform thin layer state and is heated and evaporated, and the The evaporating material-liquid mesh is sprayed and loaded with material-liquid, and evaporated in parallel circulation. In addition, selective evaporation and separation can be realized by modifying the surface of the mesh belt with hydrophilic or lipophilic properties. Due to the adoption of the circulation transport structure of multi-layer material-liquid mesh, the specific surface area of ​​heat exchange is improved, the evaporation device is compact, and the area utilization rate is significantly improved. It can perform fast and efficient low-temperature evaporation under high vacuum, and cooperate with condensation. And gas-liquid separation device, can realize distillation and extraction operations.

Description

technical field [0001] The invention belongs to the technical field of evaporative separation or concentration of liquid mixtures, and more specifically relates to a continuous traction type omentum microwave evaporation method and device. Background technique [0002] Liquid molecules have a tendency to escape or volatilize from the surface of the liquid phase due to molecular motion, and this tendency increases with the increase of temperature. Utilizing the difference in volatilities of the components in the liquid mixture, the volatile liquid phase in the liquid mixture is heated to vaporize, so that the liquid becomes vapor, that is, the so-called evaporation. [0003] During the evaporation process, the volatile components are concentrated in the vapor, and the less volatile components (including the solid phase) are also concentrated in the remaining liquid, which realizes the separation of different components to a certain extent. The greater the difference in volat...

AI Technical Summary

Problems solved by technology

The existing problem is that since the single-layer conveyor belt is used, not only the thickness and uniformity of the accumulation layer are not controlled, but also the upper surface of the conveyor belt can only be used to carry the material, and the material can only be transported through the narrow and long cylindrical cracker at one time. warehouse, the area utilization rate of the device is too low, and at the same time, its open inlet and outlet, it is also difficult to form a vacuum in the cylindrical cracking chamber, which is not conducive to decompression evaporation

Images