Diacolation method is to keep adding in medicinal herbs meal leaching solvent percolation powder, diacolation tank export flow leaching liquid from the bottom of a leaching method. Solvent diacolation, infiltration of cells that dissolve in a large number of soluble substances, concentration increases, density increases after moves down, the upper leaching solvent or loose immersion replacement position, resulted in good concentration, diffusion better natural, so the leaching effect is better than that of the impregnation method, extract more completely also.

1. Uniform distribution of solvent;

2. Discharging convenient;

3. Extraction sage;

4. Diacolation tank leaching process is better than that of impregnation method .