Device and method for continuous countercurrent extraction of astragaloside

• Main Authors: ZHANG XING, GAO LIANG, YU XUELAN, WANG XIAOXIAO
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CHEMISTRY; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PACKING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PNEUMATIC TUBE CONVEYORS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESSES; PRESSES IN GENERAL; SEPARATION; SHOP CONVEYOR SYSTEMS; STEROIDS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The invention discloses a device and method for continuous countercurrent extraction of astragaloside, and belongs to the technical field of traditional Chinese medicine extraction.The device comprises a fixing frame, a top plate is fixedly installed at the top of the fixing frame, and a plurality of countercurrent extraction kettles for continuous extraction are fixedly installed at the top of the fixing frame; the two ends of the adjacent sides of the plurality of countercurrent extraction kettles are communicated through a continuous feeding pipe, and a material distributing mechanism for dispersing input materials is fixedly mounted in an inner cavity of each countercurrent extraction kettle. According to the device, materials are fully dispersed through cooperation of a scraping rod and a material distribution disc, and under the interception action of a material passing screen and the material distribution disc, the countercurrent extraction effect on astragalus membranaceus stored in the material distr