Centrifugal Extraction Equipment
Description
Technical Parameters
Centrifugal extraction equipment is a kind of extraction equipment based on the principle of centrifugal force to realize the rapid mixing and efficient separation of liquid-liquid two-phase, which has been widely used in chemical, pharmaceutical, environmental protection, metallurgy and other fields. It generates strong centrifugal force through the high-speed rotating rotor, so that the two-phase liquid with different density can achieve rapid mixing and separation in the centrifugal force field. The working process usually includes two core steps of mixed mass transfer and centrifugal separation:
Mixed mass transfer: After the water phase and organic phase enter the centrifugal extractor, they are subjected to the shear action of the high-speed rotating drum or paddle blade, and are dispersed into tiny droplets to promote the full contact of the two phases and achieve mass transfer.
Centrifugal separation: the mixed liquid enters the drum, under the action of centrifugal force, the denser liquid moves closer to the drum wall, the less dense liquid moves closer to the center, and finally the two-phase liquid is thrown into the collection chamber in their respective channels to complete the separation.
Advantage
Technical performance advantage
High efficiency separation capacity
Centrifugal forces can reach hundreds to thousands of times the acceleration of gravity, significantly reducing mixing and separation times (usually only seconds to minutes).
It is suitable for the treatment of emulsifying systems or liquid-liquid systems with small density difference (such as organic solvent-water, light oil-heavy oil).
The separation efficiency is high, the complete separation of the two phases can be achieved, and the subsequent processing cost can be reduced.
Strong adaptability
A wide range of flow rates are handled (from trace laboratory grade to industrial grade large flow rates).
It can handle suspensions containing solid particles (e.g. fermentation fluid, catalyst recovery) to avoid clogging problems.
It is suitable for systems with high viscosity, easy emulsification or foaming, such as biodiesel preparation and Chinese medicine extraction.
Continuous operation
Achieve continuous feeding, mixing, separation and discharge, high production efficiency, suitable for industrial large-scale production.
High degree of automation, can be integrated with DCS/PLC system, reduce the risk of manual intervention.
Operation and maintenance advantages
Small footprint
Compact structure, equipment volume is much smaller than the traditional extraction tower (such as rotary tower, pulse tower), saving space.
Suitable for space-constrained laboratories or renovation projects.
Low maintenance cost
No moving parts (such as the packing of the packing tower, the sieve plate of the sieve plate tower), less wear and long service life.
It is easy to clean and can be cleaned quickly with the CIP (On-line cleaning) system.
High security
Fully enclosed design to reduce the risk of solvent volatilization and leakage.
It is suitable for the treatment of flammable and explosive, toxic and harmful materials (such as nuclear fuel reprocessing, pesticide intermediate synthesis).
Economic benefit advantage
Low energy consumption
Compared to traditional extraction towers, centrifugal extractors do not need external power to drive two-phase flow, only provide centrifugal force, and reduce energy consumption by 30% to 50%.
The mixing and separation processes are completed simultaneously, reducing the energy consumption of the intermediate links.
High solvent recovery
The two-phase separation is complete, the solvent entrainment is small, and the solvent loss and recovery cost are reduced.
It is suitable for the refining of high value-added products (such as antibiotic extraction, flavor and fragrance separation) to improve the purity and yield of products.
Fast return on investment
The initial investment is moderate, the construction period is short, usually 3-6 months can be completed and put into operation.
Low operating costs, high equipment utilization, can quickly achieve profitability.
Environmental protection and sustainability advantages
Reduce three wastes discharge
Low solvent loss, low waste gas, waste water discharge, in line with environmental regulations.
It is suitable for industries with strict environmental requirements (such as semiconductor cleaning solution recovery, electronic grade solvent refining).
Resource recycling
Efficient recovery of valuable solvents and raw materials to reduce resource waste.
It is suitable for industrial upgrading under the circular economy model.
Cleaner production
Fully enclosed design reduces material exposure and occupational health risks.
Comply with international environmental standards such as ISO 14001.
Application cases and industry adaptation
|
Profession |
Typical application |
Embodiment of advantages |
|
Pharmacy |
Extraction of antibiotics and separation of active ingredients |
High purity, low solvent residue |
|
Chemical engineering |
Rare earth extraction, catalyst recovery |
Corrosion-resistant and adaptable to complex systems |
|
Food |
Natural pigment extraction, oil refining |
Continuous production, energy saving |
|
Environmental protection |
Wastewater treatment, heavy metal recovery |
Efficient separation, reduce secondary pollution |
|
New energy |
Lithium battery electrolyte purification, biodiesel preparation |
Suitable for high viscosity system, safe and reliable |
Summary
The equipment uses centrifugal force to realize efficient mixing and separation, which is superior to the traditional extraction equipment in technical performance, convenient operation, economic benefit and environmental protection. Its core advantages include:
Efficient separation: Fast processing of emulsion system, suitable for high viscosity, easy to emulsify materials.
Energy saving: Continuous operation reduces energy consumption and solvent loss.
Safety and environmental protection: the fully enclosed design reduces the emission of three wastes and meets the requirements of green production.
Flexible: suitable for a wide range of scenarios from laboratory research to industrial production.
For the pursuit of high efficiency, energy saving, environmental protection liquid-liquid extraction process, centrifugal extraction equipment is the ideal choice.
Application field
Chemical industry: fine separation and resource recovery
In chemical production, the equipment is used for solvent extraction, oil-water separation and wastewater treatment.For example, in the fine chemical industry, the device can efficiently extract high value-added products such as spices and dye intermediates, avoiding the inefficiencies caused by traditional static layering. In the field of petrochemical industry, it is used for crude oil dehydration, desalination and solvent recovery, through multistage countercurrent extraction technology, can significantly improve the recovery of organic solvents, reduce production costs. In addition, in the extraction of rare earth elements, centrifugal extraction technology has become the mainstream process, which can realize the separation of high purity rare earth elements and avoid cross contamination.
Pharmaceutical field: efficient separation and purification
The pharmaceutical industry has high requirements for product purity and safety, and centrifugal extraction equipment plays a key role in this area. In the production of antibiotics, the equipment can realize solvent extraction of penicillin, erythromycin and other drugs, and improve the extraction rate of target ingredients. In the process of modernization of traditional Chinese medicine, it has been used to separate flavonoids, alkaloids and other effective components to reduce the degradation of heat-sensitive components. In the field of biopharmaceuticals, the device can efficiently purify proteins, enzymes, monoclonal antibodies, and remove impurities in the recovery of cell culture fluid products to improve the purity and yield of target products.
The field of environmental protection: wastewater treatment and resources
Applications of the extraction equipment in the environmental industry include industrial wastewater treatment and oil-water separation. In wastewater treatment, it can efficiently remove organic matter and heavy metal ions in phenol-containing wastewater and electroplating wastewater. For example, a company successfully recovered heavy metals such as copper and nickel in wastewater through multistage extraction and reverse extraction processes to realize resource recycling. In the field of oil-water separation, the equipment can quickly separate the oil-water mixture in mechanical processing waste liquid and Marine sewage, and the separation efficiency can reach more than 99%, significantly reducing environmental risks.
Metallurgical field: metal extraction and purification
Hydrometallurgy is its traditional application direction.In the extraction of copper, zinc, cobalt, nickel and other metals, the equipment can achieve high efficiency enrichment and purification of target metals through multi-stage countercurrent extraction process. For example, the Indonesian laterite nickel project used centrifugal extraction technology, which significantly improved metal recovery. In the field of precious metals recovery, it can efficiently extract precious metals such as gold and platinum from electronic waste and waste catalysts, and at the same time, this technology has become a mainstream process in the recovery of rare earth elements.
Food field: extraction and refining of natural products
In the food industry, centrifugal extraction equipment is used for edible oil refining and natural product extraction. In the refining of edible oil, it can remove free fatty acids and phospholipids in soybean oil and rapeseed oil and improve the quality of oil. In the production of food additives, the technology can be used for the extraction and purification of natural products such as flavors and pigments to meet consumers' needs for natural and healthy foods. In addition, in the processing of dairy products, it can achieve milk fat separation and protein concentration, and improve the nutritional value of dairy products.
The field of new energy: waste battery recycling and resources
With the rapid development of the new energy automobile industry, the metal recycling market of waste ternary lithium batteries has risen rapidly. The extraction equipment shows great potential in this field, through the multi-stage centrifugal extraction process, can efficiently recover nickel, cobalt and other metals in waste batteries, and realize the recycling of resources.For example, an enterprise uses this technology to treat waste batteries, the recovery rate is more than 95%, at the same time, in the salt lake lithium extraction, centrifugal extraction technology has become one of the key technologies for lithium resource recovery.
Technological advantages and future prospects
With the advantages of efficient separation, automatic operation and strong adaptability, centrifugal extraction equipment has achieved technological breakthroughs in many fields. In the future, the equipment will be combined with microreactors to promote continuous production in the field of biomedicine. In the field of new energy, it will help the development of green industries such as waste battery recycling and lithium extraction from salt lakes, and provide strong support for the sustainable development of various industries.
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