The centrifugal extractor is a new, fast and efficient liquid-liquid extraction separation device. It is fundamentally different from traditional extraction equipment such as mixing clarification tanks and extraction towers. The centrifugal extractor uses a powerful centrifugal force field generated by the high-speed rotation of the drum to separate the two liquid mixtures of different density and immiscible; the latter two are separated in the gravity field. The new CWL new centrifugal extractor has many advantages as follows:
1. Strong adaptability: The stage retention time is short, the phase separation is fast, and the two comparison cases are wide; the liquid materials of different densities and different viscosities can be satisfied by changing the raft and frequency conversion speed regulation. Especially suitable for phase systems with small density differences.
2, high extraction efficiency: the phase balance is established quickly, easy to achieve single-stage or multi-stage series countercurrent or cross-flow washing and extraction;
3, good operating performance: fully automatic operation, continuous non-stop operation, can also be used in small batches and multiple varieties;
4, low investment costs: extractant, solvent or detergent consumption is minimal;
5, good sealing performance: meet the application environment and GMP specifications for explosion-proof and toxic, harmful and volatile media.
6, small footprint: motor direct drive, no transmission accessories, compact structure, saving floor space and operating space;
Technical innovation points:
1. The existing centrifugal extractor in China is an older structure. Belt drive, the main bearing is supported above the drum. The structure limits the enlargement of the machine, the length of the drum can not be too large, the length to diameter ratio is small, affecting the treatment effect and the processing amount; the structure is complicated, the processing and manufacturing is difficult, the consumables are large, the cost is large, and it is not conducive to promotion; Such as vibration, large space and other shortcomings. At present, the largest model in China is the diameter of the drum is 325mm, and the processing capacity is about 8-9m3/h. It has been difficult to make larger models.
The CWL new centrifugal extractor has been completely innovative in its structure. Directly connected transmission, bearing support at the upper and lower ends of the drum, the drum length is increased, the aspect ratio is increased, and the treatment effect and the treatment amount are effectively improved; the structure of the whole machine is greatly simplified, the material is saved, the cost is reduced, and the application is facilitated. The economic and social benefits are obvious; it is conducive to the large-scale and serialization of machines. At present, the diameter of the mature machine series drums is 20, 50, 150, 250, 350, 450, 550, 650mm, and the processing capacity is from 0.1. -40m3/h; eliminates harmful vibrations of the machine, compact structure, greatly reduced floor space and wider adaptability.
2. The working principle of the existing centrifugal extractor in China is the paddle structure. The structure is complicated, and it is difficult to manufacture, install and disassemble. The existing technology and development trend abroad is an annular structure. CWL's new centrifugal extractor is in line with this trend, using an annular structure. The machine structure is greatly simplified, making it easy to manufacture, install and disassemble.
3. Developed an anti-emulsification device. During the extraction process, due to the strong centrifugal action, it is possible to form an emulsification phenomenon of oil-in-water or water-in-oil between the liquid phases, resulting in unclear separation and entrainment. The anti-emulsification device can effectively reduce the centrifugation, reduce the formation of emulsification, and obtain good effects in practical applications.
Application promotion:
CWL new centrifugal extractor is widely used in hydrometallurgy, wastewater treatment, biological, pharmaceutical, petrochemical, chemical, perfume, dye, atomic energy and other fields. It is especially suitable for products with similar density, difficult to separate under gravity field; or separation of substances with very low solute content in solution or wastewater. It is also very practical for materials that are sensitive to heat, materials with high boiling points or similar boiling points. Users all over the country, in some large pharmaceutical factories, such as Harbin Pharmaceutical Factory. Through the actual application comparison, the French imported extraction machine has been successfully replaced, and the effect is remarkable. Products are also exported to Taiwan, the United States and some Southeast Asian countries and regions.
Application in the pharmaceutical industry:
In the pharmaceutical industry, centrifugal extractors used in the production of some antibiotics and amino acids are currently imported. The new centrifugal extractor can replace imports and has a broad market prospect.
In bioengineering, it has been successfully applied to the extraction of active ingredients from plants and Chinese medicines.
Application in nuclear fuel reprocessing:
The centrifugal extractor has the characteristics of short residence time and low level of residual liquid, which is very suitable for nuclear fuel post-treatment process, because it is beneficial to ensure nuclear geometry critical safety and reduce the radiation degradation of extractant, especially for fission-containing The post-treatment of irradiated nuclear fuel with high material concentration, deep fuel consumption and short cooling period is particularly important.
Treatment of environmentally friendly phenol-containing wastewater:
The use of CWL new centrifugal extractor for phenol removal has the characteristics of small volume, high efficiency and small amount of extracting agent, which can save a lot of extractant cost and the phenol removal rate is over 98%. At present, the annual discharge of industrial wastewater by domestic enterprises is about 40 billion tons, of which phenol industrial wastewater accounts for about 0.5%, about 2 billion tons. According to market research, it is estimated that about 30% of the total amount of phenol-containing industrial wastewater discharged in China can be removed by centrifugal extraction machine, and a total of more than one thousand centrifugal extraction machines are needed.
Application in hydrometallurgy:
In the hydrometallurgical extraction process, especially when a large number of stages is required or non-equilibrium extraction can be used, the application of the centrifugal extraction machine also has good prospects. The use of a centrifugal extractor has a significant effect on reducing the plant area occupied by the extraction equipment, reducing the amount of extractant in the extraction process, shortening the extraction system from start-up to stabilization time, and facilitating automatic control.
The application of replacing traditional extraction equipment in other traditional industries is also very extensive, and the application prospect is very good.
More attention:
Veterinary Drugs: refers to substances (including medicated feed additives) used to prevent, treat, diagnose animal diseases or purposefully regulate animal physiological functions.
Veterinary drugs mainly include: serum products, microecological products, Chinese herbal medicines, proprietary Chinese medicines, chemicals, antibiotics, and topical pesticides, disinfectants, etc.
Veterinary Drugs,Veterinary Medicine,Veterinary Injectable Drugs,Veterinary Pharmaceutical Drugs
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