Gutta-percha freeze-out device

Abstract

The invention discloses a gutta-percha freeze-out device. A freeze-out tank is provided with a gutta-percha solution feeding valve; the freeze-out tank is internally provided with a plurality of nozzles; the upper end of the freeze-out tank and the upper end of a water storage tank, and the lower end of the freeze-out tank and the lower end of the water storage tank are respectively communicated through balance valves and communication valves; a water circulation loop is formed through the lower end of the water storage tank and the upper end of the water storage tank through a pump and a heat exchanger; a water cooling loop is formed through the heat exchanger and an ice water machine; an upper spraying loop is formed at the lower end of the water storage tank through the pump, the spraying control valve, the nozzles inside the freeze-out tank and the communication valve; a lower gusher loop is also formed at the lower end of the water storage tank through the pump, a bottom spraying control valve and the communication valve; the top of the freeze-out tank is communicated with the water storage tank through a centrifugal filter and a liquid separator; a solvent return valve, an ice water return valve and other valves are arranged on a communication pipeline. Due to adoption of the gutta-percha freeze-out device, rapid and efficient devitrification of gutta-percha is achieved, and moreover after the gutta-percha is devitrified, the gutta-percha, water and organic solvents can be conveniently and effectively separated and circulated, so that the application prospect is great.

Description

technical field [0001] The invention relates to a freeze-out device for eucommia gum, in particular to a device for separating eucommia gum from an organic solvent in which the eucommia gum is dissolved. Background technique [0002] Eucommia gum is a new functional material with multiple uses and has important application value. It is usually extracted from the plant tissue of Eucommia Eucommia by using non-polar solvents such as petroleum ether. Since Eucommia gum is easily soluble in hot petroleum ether Non-polar solvents such as cold petroleum ether have very low solubility in non-polar solvents such as cold petroleum ether. Therefore, if the solution that has extracted Eucommia gum is frozen and cooled, Eucommia gum can crystallize and separate out, but the use of ordinary partitioned wall freezing and cooling will cause The Eucommia gum is slowly precipitated, the viscosity increases rapidly, and the heat transfer resistance cannot be convected. The heat transfer resis...

AI Technical Summary

Problems solved by technology

[0002] Eucommia gum is a new functional material with multiple uses and has important application value. It is usually extracted from the plant tissue of Eucommia Eucommia by using non-polar solvents such as petroleum ether. Since Eucommia gum is easily soluble in hot petroleum ether Non-polar solvents such as cold petroleum ether have very low solubility in non-polar solvents such as cold petroleum ether. Therefore, if the solution that has extracted Eucommia gum is frozen and cooled, Eucommia gum can crystallize and separate out, but the use of ordinary partitioned wall freezing and cooling will cause The Eucommia gum is slowly precipitated, the viscosity increases rapidly, and the heat transfer resistance cannot be convected. The heat transfer resistance will become larger and the cooling will be very slow. The precipitated Eucommia gum will gradually form a flocculent suspension in the solution, which is difficult to completely separate from the organic solvent. Even if it is barely separated, it will cause a large amount of loss of organic solvents, which not only wastes resources but also pollutes the environment, which seriously plagues the industrial production process of Eucommia gum.

[0003] Existing common refrigeration equipment and separating device can't solve the slow cooling in the Eucommia gum crystallization process, the separated out Eucommia gum forms flocculent suspension in the solution, and the technical problems that Eucommia gum is difficult to separate from the organic solvent. Therefore, the prior art Can not meet the needs of industrial production of Eucommia gum

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