Detailed introduction
　　I. Brief Introduction of Extraction Equipment
　　Extraction is a process of extracting useful components (such as constituents or juices) from substances by solvent (e.g. ethanol) treatment, distillation, dehydration, pressure or centrifugal force, or by other chemical or mechanical processes. Extraction equipment is the equipment that realizes this process. A complete set of extraction equipment includes extraction tank, condenser, cooler, defoamer, oil-water separator, circulating pump, etc. Extraction tank is a common equipment used in pharmaceutical, food, chemical, condiment industry, such as atmospheric pressure, micro-pressure, water decoction, warm soaking, thermal reflux, forced circulation, percolation, aromatic oil extraction and organic solvent recovery, etc. It has the advantages of high efficiency and easy operation. There are many types of extraction equipment, which can be divided into straight cylinder extraction tank, normal cone extraction tank, oblique cone extraction tank, mushroom extraction tank, inverted cone extraction tank and so on. Stainless steel extraction tanks can be used in conjunction with other auxiliary equipment, such as foam traps, condensers, dual filters, oil-water separators, etc. Oil-water separator is mainly used for alcohol extraction to collect oil. The whole set of equipment is completed in a fully sealed and recyclable system, and the organic solvent is recovered in the waste liquid at the same time.
　　2. The main factors that should be paid attention to in the selection of extraction equipment:
　　Material characteristics: such as viscosity, density, water absorption, volatility, corrosion and so on, the particularity of the material should be specified.
　　Working Conditions: Use Temperature and Pressure
　　Comprehensive technical conditions: heating time, treatment time, control system requirements, process orifice equipment instructions, plant conditions, water and electricity situation instructions.
　　3. Design features of extraction equipment
　　1. Quick-open type safety discharging door: cylinder plus control panel, can automatically open and close the lid of the tank, three or four cylinders, set up safety devices to prevent accidental operation, high safety factor, suitable for the use of small and medium-sized slag outlets.
　　2. Rotary Slag Discharge Door: Fully automatic opening and closing of the lid can realize high temperature and high pressure extraction. Rotary pressure can reach 3Bar, which provides more choices for the extraction process. It can also meet the requirements of some special processes. It is safe and reliable, with self-locking function, non-dislocation and non-displacement.
　　3. Large-caliber slag-discharging door: large-caliber slag-discharging door is adopted, with fast slag-discharging, convenient slag-discharging and high efficiency.
　　4. Preparing characteristics: The extraction equipment is made of 304 stainless steel in all parts contacted with liquid medicine, which is non-toxic, non-abscission and good corrosion resistance. It can not only ensure the quality of traditional Chinese medicine products, but also prolong the service life of the equipment.
　　Extraction equipment can be used in conjunction with other auxiliary equipment, such as foam trap, condenser, dual filter, oil-water separator, etc. Oil-water separator is mainly used for alcohol extraction to collect oil. The whole set of equipment is completed in a fully sealed and recyclable system, and the organic solvent is recovered in the waste liquid at the same time. The extraction equipment has the characteristics of short extraction time, high production efficiency, low energy consumption, fast heating time, wide application range, simple operation, safety and reliability.