Plant extraction equipment with efficient liquid-residue separation function

Abstract

The invention discloses plant extraction equipment with an efficient liquid-residue separation function, and effectively solves the technical problem that pressure application and stirring cannot be performed simultaneously in a vegetable medicinal material leaching process by an existing device. The plant extraction equipment can apply pressure to vegetable medicinal materials while stirring the vegetable medicinal materials. During pressure application, the pressure application range is enlarged, and stirring is stopped. During stirring, the stirring range is enlarged, and the pressure application range is reduced. The conflict of the two processes is ingeniously avoided, and the adjusting processes are automatically carried out without manual participation.

Description

technical field [0001] The invention relates to the technical field of plant medicinal material extraction equipment, in particular to plant extraction equipment with high-efficiency liquid slag separation function. Background technique [0002] During the leaching process of the existing herbal medicinal materials, they need to be pulverized to make the particle size of the medicinal materials smaller, thereby increasing the contact area with the leaching solvent and increasing the diffusion rate. The leaching of more mucus will increase the viscosity between the herbal medicines; the leaching rate of the herbal medicines is positively correlated with the convective diffusion coefficient, and the convective diffusion coefficient increases with the increase of the convection degree of the solvent, and the convective diffusion coefficient is the largest in turbulent flow , in order to increase the convective diffusion coefficient, most of the existing leaching processes have ...

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Problems solved by technology

[0002] During the leaching process of the existing herbal medicinal materials, they need to be pulverized to make the particle size of the medicinal materials smaller, thereby increasing the contact area with the leaching solvent and increasing the diffusion rate. The leaching of more mucus will increase the viscosity between the herbal medicines; the leaching rate of the herbal medicines is positively correlated with the convective diffusion coefficient, and the convective diffusion coefficient increases with the increase of the convection degree of the solvent, and the convective diffusion coefficient is the largest in turbulent flow , in order to increase the convective diffusion coefficient, most of the existing leaching processes have agitation, and the agitation mechanism is generally divided into two types, one is the stirring blade, but under the action of the viscosity and friction of the herbal medicine, the blade It can only affect the nearby botanicals, and most of the agitated botanicals will rotate synchronously with the paddles, and only a part of the botanicals will have obvious relative dislocation movement, and the degree of convection of the solvent penetrating into the medicinals cannot be achieved. The other is the agitating helical blade, the helical blade can pump the herbal medicine upwards to the top first, and then discharge it to the surroundings, so as to increase the convection of the solvent, but it also affects the viscosity and friction of the herbal medicine. Under the action of the propeller, the herbal medicinal materials input into the spiral blades will be transported upward synchronously, and only a part of the herbal medicinal materials will produce obvious relative dislocation movement, and the convection degree of the solvent cannot be greatly improved. Although the existing propeller blades and helical blades It can improve the degree of convection of botanicals, but the range of influence is small, and the leaching rate cannot be maximized

[0003] Long-term leaching often leads to the dissolution of a large amount of impurities, and some active ingredients are decomposed by the enzymes together, which affects the quality of the leaching solution; The pressure will make the medicinal material tissues accumulate and become compact, which will affect the stirring in the above-mentioned leaching process. Stirring and pressure will affect each other, which is not conducive to leaching. The combined effect of stirring and pressure cannot be realized in the existing devices. effect, does not maximize leaching

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