Products Description
1.Equipment Structure
Pressure vessel:
This is the core part of the subcritical extraction equipment, used to work under a certain pressure, usually divided into low pressure, medium pressure and high pressure three categories. When the working medium in the container is toxic or flammable and explosive substances, the category of the container will be improved accordingly.
Compressor: composed of crankshaft, piston, cylinder, etc., through the reciprocating movement of the piston to achieve gas inhalation and compression, thereby increasing the pressure in the cylinder and gas temperature.
Vacuum pump: used to reduce the pressure in the system, usually used in conjunction with the compressor, by controlling the inlet and exhaust and automatically complete the role of gas distribution, to achieve gas extraction and compression.
Cylinder: is an important part of the compressor and vacuum pump, used to provide gas compression and expansion space, its internal structure design to ensure the efficient compression and expansion of gas.
Piston: reciprocating movement in the cylinder, by changing the volume of both ends of the cylinder to achieve the suction and discharge of gas, is to achieve the vacuum pump suction and exhaust role of the key components.
Air valve: including suction valve and exhaust valve, used to control the inlet and outlet of gas, its design ensures the smooth and efficient flow of gas.
Filter: used to remove solid particles and other impurities in the gas, ensure that the gas entering the cylinder is pure, and protect the normal operation of the equipment.
Cooler: used to reduce the temperature of the gas and transfer the heat of the gas to the cooling medium through heat exchange, so as to achieve the cooling and liquefaction of the gas.
2.Technical principles
Subcritical extraction technology is a new type of separation technology, which uses subcritical fluid as an extractant. Under closed, oxygen-free and low-pressure conditions, according to the principle of similar dissolution of organic matter, the fat soluble components in solid materials are transferred to the liquid extractant through the molecular diffusion process, and then the extractant is separated from the target product through the process of decompression evaporation. The final product is obtained.
3.Technical features
The main advantages of sub-critical extraction technology include non-toxic, harmless, environmental protection, no pollution, non-thermal processing, retaining the active ingredients of the extract without destruction, no oxidation, large capacity, industrial large-scale production, energy saving, low operating costs, and easy separation from the product.
4.Application field
Extraction of natural products: subcritical extraction technology can efficiently extract the effective components of natural plants and animals, such as plant oils, plant oils, pigments, active ingredients, etc. This technology has important applications in traditional Chinese medicine, health care products, cosmetics and other fields.
Food industry: In the food industry, subcritical extraction technology can be used for the degreasing of edible plant powder and the extraction of by-product oils, such as the degreasing production of soybeans, peanuts, walnuts, almonds, wheat germ, coffee beans, pumpkin seeds and other materials. In addition, subcritical extraction technology can also be used to extract cream from whole milk powder to improve the purity and taste of cream.
Animal oil extraction: Subcritical extraction technology can be used to extract animal oil, such as lanolin, crocodile oil, horse oil, oyster, krill, duck oil, fish oil, etc., which has a wide range of applications in food, cosmetics and medicine.
