The equipment is applicable for the filtration operation for such industries as traditional Chinese medicine, plant, animal, food and chemical industry etc. The non-organic medicine materials such as frankincense, colophony and aloe etc. Will be softened and agglomerated when meeting the solvent, and the pore space will be blocked to prevent the solvent from equally passing the medicine materials, thus, they can't be adopted with filtration. Other medicine materials can be leached through this filtration method. The equipment is composed of tank body, taper body, oval seal head (or flat cover), pneumatic slagging door and pneumaticoperation bench etc. It has such characteristics as equal solvent distribution and convenient slagging etc. The filtration method is to add continuously leaching solvent into the rough powder of medicine material to make it filtrate the medicine powder, and then the leaching liquid will flow from the bottom outlet. During the filtration, after the solvent filters into the cell of medicine material and dissolves large amount of soluble matter, the concentration increases, and it will move downward after the density increases. The leaching solvent at the upper layer or the thin leaching liquid will exchange the position and produce good concentration difference to make the scattering be carried out smoothly. Thus, the leaching effect is better than the dipping method, and the extraction will be comparatively complete. The operation time for separating the leaching liquid can also be saved.
