Equipment name:Dual Formula Reflux Extraction Evaporator for chemical industry
• Scope of application: The equipment is suitable for percolation in traditioal medicine,food industry,chemical industry etc.
• Equipment structure and description: (1)Equipment structure components:extracting tank,filter,liquid pump,heater evaporator,condenser,cooler,oil seperator,industrial control control ect;
(2)After dipping and heating,the lixiviation liquid of traditional medicine will be pumped into the external heater from the bottom of extracting tank.The extra liquid will enter into the bottom of extracting tank to reflow and play its partial mixing effect;
(3)After the extracting flash liquid is heated by the heater,evaporated instantly and seperated by the seperation concentrator.The sencondary steam enters into the extracting tank;on the one hand,transmiting the heat to the solvent in extracting tank;on the other hand,playing the role of stirring effect.The residual air enters into the condenser and become solvent,and after reflux it enters into the extracting tank.It will enter into condensed heater to carry out heat exchange and make the temperature of condensed liquid approximate to the boiling point of solution in extracting tank.Then the residual air enters into condenser.As the solvent has large reflux quantity,the density of solute in medicine and solvent keeps high gradient; and the solute will be rapidly dissolved;
(4)The extraction and concentration are synchronous with continuos discharge of concentrated liquid,thus,the process time is greatly reduced and only requires 4-6 hours;
(5)The whole unit kis controlled by industrial control computer.heating temperature,evaporation temperature,reflow temperature,system vacuum pressure;solvent liquid level in extracting tank and Concentration of concentrate,liquid level of evaporation concentrating tank all can be set and controlled,making the technology process operation reliable,stable,safe.
(6)The unit not only has good functions for extraction and concentration of traditional herbal medicine(dry product),but also has powerful functions for extracting and concentrating fresh plant products at low temperature with fresh flavor preserved,such as the extraction and concentration of flower and asparagus etc fresh products.Its practical application in medicine plants and health products plants displays its powerful function advantages.The machine is also applicable to the extraction and condensation of natural condiments and food additives concerning animals and halobios;
(7)As to the comprehensive performance,it's at the leading position in China. Its modernized technology equipment keeps pace with international natural plant medicine.Our company also produces ordinary manual control unit or semi-automatic control unit to satisfy different requirements of our customers;
(8)With good technology performance,the ointment-collecting rate is enhanced.Water or alcohol solvent distillation in conditions of negative pressure,normal pressure and positive pressure,especially low-temperature distillation for heat sensitive materials can be made.The process flow of the unit has reasonable and compact layout,beautiful appearance and low pollution,which is accordance with GMP requirements.The unit has many advantages such as high efficiency,energy saving,multifunction;
(9) The equipment is composed of tank body,taper body,oval seal head (or flat cover)pneumatic residue discharging door,pneumatic operation bench etc.It has such characteristics as equal solvent distribution and convenient residue dischargng etc.
(10)The percolation method is to add continously leaching solvent into the rough powder of medicine materials to make it filtratethe medicine powder,and then the leaching liquid will flow from the bottom outlet.During percolation,the layer percolation method of solvents filtering into the medicine material is to add continuously leaching solvent into the medicine material layer to make the solvent pass through the medicine material layer from top to bottom and dissovle large amount of soluble matters.After that,the concentration 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 carried out smoothly.Thus,the leaching effect is better than the dipping method,and the extraction will be comparatively complete.
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