Manufacturing method of hanging basket in extraction kettle and hanging basket

Abstract

The invention discloses a manufacturing method of a hanging basket in an extraction kettle and the hanging basket. The hanging basket disclosed by the invention adopts a multi-section cylinder structure, and a distributor is arranged at the bottom of the cylinder at the lower end, so that supercritical carbon dioxide fluid which enters the hanging basket from the bottom of the cylinder at the lower end can only enter the cylinder at the lower end after passing through the distributor, and the supercritical carbon dioxide fluid entering the extraction kettle from the bottom can be prevented from entering the cylinder at the lower end in the form of columnar flow or channel flow; and meanwhile, the distributors are also arranged between the sections of the cylinder, and then the supercritical carbon dioxide fluid after passing through each section of the cylinder can only enter the next section of the cylinder after redistribution. According to the hanging basket disclosed by the invention, multiple uniform redistribution is performed on the supercritical carbon dioxide fluid in the extraction kettle, thereby preventing the supercritical carbon dioxide fluid from forming the columnar flow or the channel flow, effectively improving the flow direction of the supercritical fluid in the extraction kettle, enabling extraction material in the hanging basket to be in full contact with the supercritical fluid and greatly improving the supercritical extraction efficiency and effect.

Description

technical field [0001] The invention relates to a method for manufacturing a hanging basket in an extraction kettle and the hanging basket, belonging to the technical field of supercritical fluid extraction equipment. Background technique [0002] After nearly 30 years of development, my country's supercritical carbon dioxide extraction device has gradually developed from a small test device to a large device for industrial production. At present, the largest device in China has reached 3500L. The device has been widely used in food, medicine, chemical industry and many other fields. The hanging basket is used to hold the material in the supercritical carbon dioxide extraction device. It is a non-pressure container placed in the extraction kettle to prevent the material from polluting the entire carbon dioxide extraction system. Whether the structure of the hanging basket is reasonable or not directly affects the extraction efficiency of the whole device and the quality of ...

AI Technical Summary

Problems solved by technology

[0003]The current hanging basket is a single-section structure. The main problem of the hanging basket with this structure is: during the circulation process of supercritical carbon dioxide, due to the excessive flow rate or solid material Compaction will cause the supercritical carbon dioxide fluid to form a column flow or channel flow, the material and the supercritical fluid are not in full contact or have no contact, and the extraction effect of the material is not ideal

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