Method for separating solid-liquid molecules of pasty material

Abstract

The invention discloses a method for separating solid-liquid molecules of a pasty material, belonging to the field of a solid-liquid separation technology. The method is characterized in that the pasty material distributes a fabric membrane to form a film; and pressure is applied so as to form a liquid film on the surface of the material film. Cooling and vacuumizing are performed so that the inside of the entire separation system is in a vacuum environment. A capturing surface is set to capture the liquid molecules. The liquid molecules are captured by the capturing surface before colliding with other molecules in the free moving process; and the liquid molecules constantly escape from the film layer and are captured, thus forming an irreversible process. The entire process is a continuous process, the liquid molecules constantly migrate to the capturing surface and are captured and collected by the capturing surface, and the pasty material after the liquid components are separated is discharged. The method disclosed by the invention has the effects and benefits that the material has strong adaptability, the heated time is short, the vacuum degree of the operation environment is high, the temperature is low, and the material property is not changed; the purity of the obtained liquid components is high; the process is simple and the time is short; and after the liquid holdup is reduced, the viscosity of the solid material is reduced, and solid material has less possibility of being bonded.

Description

technical field [0001] The invention belongs to the technical field of solid-liquid separation, and relates to a method for solid-liquid separation of paste materials, in particular to a solid-liquid molecular separation method for paste materials. Background technique [0002] Paste materials contain solid components and liquid components. The content of liquid components is high, and the solid-liquid binding energy is high. Conventional separation techniques such as centrifugation and pressurization cannot be used for separation. At present, the most widely used method is to vaporize the liquid components by heating to achieve separation. However, the energy consumption of heating separation is high, and the energy utilization rate is low; the thermal decomposition of the solid component will cause impurities to be mixed into the separated liquid component; the high viscosity of the paste material will also affect the normal operation of the process equipment. [0003] Ch...

AI Technical Summary

Problems solved by technology

However, the energy consumption of heating separation is high, and the energy utilization rate is low; the thermal decomposition of solid components will cause impurities to be mixed into the separated liquid components; the high viscosity characteristics of paste materials will also affect the normal operation of process equipment

[0003] Chinese patent, publication date: July 23, 2006, publication number: CN2754629Y, application number: 200420079264.2's invention patent "vacuum drying machine host for pasty materials", which proposes a main machine for vacuum drying machines for paste materials. Realize continuous low-temperature drying of materials, but the vacuum dryer uses crawler belts to transport materials, which is easy to stick to the pores of the crawler belts and affects heat transfer efficiency

[0004] Chinese patent, publication date: October 10, 2007, publication number: CN101050916, application number: 200710021519.8 The invention patent discloses a rake dryer, which is a vacuum drying device with intermittent feeding, and the exhaust gas is introduced into the hollow The shaft and the fasting rake head improve the heat transfer efficiency, but when the rake dryer dries the paste material, the rake head is easy to stick to the material, and the drying cycle is long, and the drying cycle of a single can is as long as 4.5 hours

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