Seepage process: solvent preparation tank - transfer pump - high-level tank - seepage tank - transfer tank - filter - transfer pump - main storage tank

Infiltration process: crushing metering feeding impregnation micro negative pressure infiltration recovery

Percolation method

The method of extracting effective ingredients by continuously adding solvents to moderately crushed medicinal materials in a percolating tank and allowing them to permeate through the layer of medicinal materials; When percolating, the solvent penetrates into the cells of the medicinal material and dissolves a large amount of soluble substances, causing the concentration to increase and the relative density to move downwards. The continuous solvent creates a good concentration difference inside and outside the cell wall, which is conducive to the dissolution of the components

Room temperature immersion

Commonly used for the extraction of medicinal wine and tinctures, its clarity has long-lasting stability

Suitable for the extraction of sticky, unorganized, fresh, and easily swollen medicinal herbs, especially for medicinal herbs whose active ingredients are easily volatile or destroyed when exposed to heat

Disadvantage: 14 hours As mentioned above, with a large amount of solvent used, the extraction efficiency is often poor and it is not easy to completely extract, so it is not suitable for the extraction of valuable medicinal materials and medicinal materials with low content of active ingredients

Heating impregnation

(40~60 ℃) 3-7 hours. A heat exchanger is required, and the clarity is not as good as the room temperature method

characteristic
•The upper part of this equipment is equipped with a large-diameter quick opening manhole as a feeding port for convenient feeding. The solvent is added from the top through a distribution tube and slowly passes through the medicinal herbs to obtain a percolate
•The equipment mainly consists of a shell, feeding hole, pressure plate, liquid distributor, slag gate, etc
•The entire equipment is made of stainless steel, with finely polished inner and outer surfaces, smooth and tidy, no dead corners, easy to clean, and meets GMP requirements in the pharmaceutical production process

Technical Parameter