Continuous reverse flow extracting tank

Abstract

The invention relates to a continuous reverse flow extracting tank, which is used for extracting traditional Chinese medicines. The extracting tank comprises a heating jacket, a horizontal barrel, a material pushing screw, a driver, a low-temperature steam generator, a medicinal material inlet, a solvent inlet, an extracting solution outlet, a spiral slag extractor and the like, wherein the volume of the barrel is partitioned into a long continuous spiral groove by the material pushing screw so as to create condition for reverse flow of extracting solution and medicinal materials as well as uniform contact, dispersion and permeation of the extracting solution and the medicinal materials in mobile flow; and the driver drives the material pushing screw to rotate along one direction so as to push the medicinal materials from one end to the other end and continuously and hermetically discharge waste dregs of decoction. The continuous reverse flow extracting tank has a simple and compact structure. Hundreds of the conventional multifunctional extracting tanks which are not accordant with the requirements of the good manufacturing practice (GMP) are reformed by the technology of the continuous reverse flow extracting tank, so that continuous operation is realized, yield is increased by multiple times, energy consumption is saved greatly, the environmental quality of a production field is changed completely, the cost on continuous reverse flow extraction is lowered greatly and the popularization of continuous reverse flow extracting technology is promoted greatly.

Description

technical field [0001] The invention relates to a continuous countercurrent extraction tank, which belongs to the technical field of chemical and pharmaceutical extraction, and is used for continuous countercurrent extraction of natural animals and plants with water or organic solvents. Background technique [0002] Patent No.: 200910046851. The development purpose of the 9 continuous countercurrent baffle tube extraction machine is to eliminate and replace the existing backward multifunctional extraction tank. Multifunctional extraction tanks made of stainless steel have long been popularized and used in various Chinese medicine factories and aromatic extraction factories in my country, and there are thousands of them. The new high-efficiency continuous countercurrent baffle tube extraction machine replaces the multi-functional extraction tank, although it is very beneficial to improve the production of traditional Chinese medicine, but it is also very expensive to eliminat...

AI Technical Summary

Problems solved by technology

The new high-efficiency continuous countercurrent baffle tube extraction machine replaces the multifunctional extraction tank, although it is very beneficial to improve the production of traditional Chinese medicine, but it is also very expensive to eliminate and scrap a large number of stainless steel multifunctional extraction tanks. The shape and plant layout of the two kinds of extraction equipment are too different. After the replacement, the operating platform and plant building of the original multi-functional extraction tank will be overthrown and restarted.

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