Baffling pipe type continuous back flow extracting machine

Abstract

The invention relates to a baffling pipe type continuous back flow extracting machine, which is provided with an extracting pipe of which each one of two ends is connected in series with a 180-degree turn extracting pipe, wherein the extracting pipe with the total length of 15 to 25 meters is withdrawn and folded by a baffling technique to ensure that the extracting pipe can be arranged in a workshop which is 7 meters in length, 7 meters in width and 4 meters in height; the baffling pipe type continuous back flow extracting machine covers the capacity of processing over ten thousands of Chinese medicinal materials each year; the medicinal materials and solvents are input continuously and quantitatively; full-flow operations are performed in the extracting pipes; under spiral thrust and potential difference pushing of the solvents, the extraction of back flows is performed in a round extracting pipe without a dead corner so as to reduce the adverse effect on liquid-solid phase back-mixing to the minimum; under the heating by saturated steam of which the temperature is less than or equal to 100 DEG C, a high-yield, high-efficiency and low energy consumption extraction is performed; and various intermittent single-tank extractions and back flow tank type extracts are incomparable with the extractions of the baffling pipe type continuous back flow extracting machine. Because the baffling pipe type continuous back flow extracting machine adopts a special structure, the baffling pipe type continuous back flow extracting machine also can perform equipment cleaning very conveniently, and particularly, the baffling pipe type continuous back flow extracting machine continuously and hermetically discharges waste dregs of decoctions to ensure that the sanitary quality of the Chinese medicament production environment can also meet requirements on modernized medicament productions.

Description

technical field [0001] The invention relates to a baffle tube type continuous countercurrent extraction machine, which belongs to the technical scope of liquid-solid phase extraction and is suitable for continuous countercurrent extraction of natural animals and plants by using water or organic solvents. Background technique [0002] At present, the most important extraction technology of Chinese medicinal materials in the production process of traditional Chinese medicine is still in the state of batch single-pot extraction, which is very backward. The yield and efficiency of extraction equipment are very low, and the energy consumption is extremely high, especially when the waste medicine is discharged at the operation site. When the slag is slag, the slag juice cross-flows and hot steam overflows, which seriously affects the sanitation of the pharmaceutical production environment. Patent No. 200620048081. The baffle-type continuous countercurrent extractor is of trough ty...

AI Technical Summary

Problems solved by technology

The 3-fold flow continuous countercurrent extraction machine is a trough type, and there are dead corners of liquid accumulation above the center line of the screw pusher and on both sides. The extraction liquid in the dead corners is not extracted according to the countercurrent law, and it is easy to mix with solid medicinal materials and extraction solvents. Produces back-mixing, which greatly reduces the effect of countercurrent extraction

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