Volatile oil extraction separator with lining pipe

Abstract

The invention discloses a volatile oil extraction separator with a lining pipe, wherein the volatile oil extraction separator comprises an extractor assembled on a distillation flask, and is characterized in that the bottom end of a separation pipe of the extractor is a blind end, a polytetrafluoroethylene lining pipe or a glass lining pipe with a polytetrafluoroethylene coating layer on the inner wall is sleeved in the separation pipe, and the pipe wall of the lining pipe is provided with an open pore; the bottom end of the lining pipe is sleeved with a plunger, the lining pipe is tightly matched with the plunger, the bottom of the plunger expands in the radial direction, and the diameter of the expanding end is not smaller than the outer diameter of the lining pipe. The volatile oil extraction separator can greatly reduce the wall adhesion loss, improve the oil yield, make up for the defects of volatile oil wall adhesion loss, inconvenient oil extraction operation and the like of an existing glass volatile oil extraction separator, is more convenient in oil extraction operation and more accurate in metering, has a remarkable effect when materials with high and medium viscosity of volatile oil are extracted, and is simple and reasonable in structure, convenient to use and high in operability. The oil yield can be increased from 32% to 97%, the oil yield is increased from 88% to 99% when mint is extracted, and the effect is more remarkable when volatile oil with low oil yield and high viscosity is extracted.

Description

technical field [0001] The invention belongs to the technical field of chemical extraction, in particular to a device for extracting volatile oil from plant raw materials. Background technique [0002] Volatile oil, also known as essential oil, is a class of compounds that have fragrance and can be distilled out with water vapor without being miscible with water. The volatile oil is mostly colorless or yellowish, oily transparent liquid lighter than water, with complex components, mainly monoterpenes, sesquiterpenes and their oxygen-containing derivatives, with no fixed boiling point, and the boiling range is 70-300°C. [0003] The material of the existing conventional volatile oil separator is 95 material glass, which has a relatively high surface energy and is easy to adhere to volatile oil. At the end of the separation process, the temperature of the volatile oil at the oil-water separation interface gradually decreased from about 70 °C at the time of collection, the vis...

AI Technical Summary

Problems solved by technology

When taking volatile oil from the oil discharge port, it is necessary to make the volatile oil flow from the oil-water separation interface to the oil discharge port. The process is long and the area contacting the inner wall of the glass tube is greatly increased, which increases the loss of sticky wall; if the oil is sucked from the upper part of the separation tube, it will be because The volatile oil floats on the water surface, and the staying position is deep and the space is narrow. It is very inconvenient to take the oil, and the volatile oil attached to the inner wall of the glass tube cannot be absorbed.

The above disadvantages have a particularly obvious impact on the oil yield when extracting materials with low oil yield

[0004] The sticky wall loss during oil extraction leads to a decrease in oil yield and an increase in production cost. At the same time, it affects the judgment of the relationship between oil yield and extraction parameters. This is different from when the volatile oil extraction separator uses glass and releases volatile oil from the bottom The significant increase in the contact surface between volatile oil and glass is directly related, so improving this unreasonable structure of volatile oil separation device has become an urgent problem to be solved

Images