In liquid–liquid extraction projects, long equipment installation periods and complex on-site commissioning have always been a major pain point for users. This is especially true for multi-stage counter-current extraction processes, which often require multiple units in series, complex piping connections, and high on-site construction capabilities.

Zhengzhou Tiei Extraction Technology Co., Ltd. has launched the skid-mounted CWL-M series centrifugal extractors, which integrates the high-efficiency centrifugal extractor main unit, explosion-proof power module, precision instruments, PLC control system, and all piping and valves onto a single steel skid. This provides the chemical, hydrometallurgical, pharmaceutical, and environmental protection industries with a ready-to-use, flexible, safe, and reliable solution.

CWL-M Centrifugal Extractor: The Core Equipment for High-Efficiency Liquid–Liquid Extraction

The CWL-M series centrifugal extractor is independently developed by Tiei Extraction. It uses high-speed rotation to generate centrifugal force, fully mixing and transferring mass between the light and heavy phases within the annular gap, and achieves rapid phase separation inside the drum.

Key Advantages
1.High Separation Factor: The drum achieves high peripheral speeds, providing separation rates tens of times faster than traditional mixer settlers, with minimal entrainment.
2.Strong Adaptability: Capable of handling systems with wide phase ratios (1:100 to 100:1) and small density differences between phases (≥0.03 g/cm³).
3.Short Residence Time: Single-stage residence time is only a few tens of seconds, making it ideal for easily emulsified or degradable materials.
4.Fully Sealed Operation: No solvent evaporation, compliant with environmental and safety regulations.

Skid-Mounted Design: Turning “On-Site Construction” into “Plug-and-Play”

In conventional projects, even with a centrifugal extractor, on-site work such as piping welding, instrument wiring, and control system commissioning is still required, often taking several weeks or even months. The skid-mounted CWL-M centrifugal extractor unit from Tiei Extraction pre-fabricates all auxiliary systems in the factory:

1.Pre-commissioned before delivery: Complete wiring, water testing, and material-simulated testing are performed in the workshop to ensure all operational parameters meet specifications.
2.Plug-and-play on site: Users only need to connect the main power and inlet/outlet headers, enabling rapid commissioning. Installation time is reduced by more than 80%.
3.50% smaller footprint: Compact, three-dimensional layout is ideal for plant retrofits, space-constrained areas, or rented facilities.
4.Easy relocation: When transferring production or relocating the plant, the entire skid can be lifted by crane to the new site, preserving equipment value.

Safety and Automation: Meeting Modern Chemical Plant Standards

For flammable, explosive, or toxic media, Tiei Extraction provides Ex d II BT4 explosion-proof configuration, with all electrical components (motors, inverters, control cabinets) meeting explosion-proof standards. The skid-mounted system can integrate:

1.Variable frequency drive: Adjusts drum speed in real time according to material characteristics, optimizing separation efficiency.
2.Flow/temperature/pressure monitoring: Key parameters are displayed in real time and transmitted to the DCS system.
3.Automated interface control: Prevents heavy phase entrainment or light phase short-circuiting, ensuring extraction purity.
4.User-friendly operation: Operators can start/stop, adjust phase ratio, and record operational data via touchscreen, significantly reducing labor dependency and operational risks.

Skid-mounted CWL-M Centrifugal Extraction Application Scenarios

Tiei Extraction has supplied skid-mounted CWL-M centrifugal extraction systems to numerous domestic and international clients. Typical application areas include:

Hydrometallurgy: Lithium battery recycling (extraction of nickel, cobalt, lithium), copper extraction, etc.
Fine Chemicals: Extraction of pharmaceutical intermediates, pesticide synthesis, fragrance purification.
Environmental Protection: Treatment of phenol-containing wastewater, purification of oil-containing wastewater, organic solvent recovery.
Biochemical Fermentation: Extraction of bio-based chemicals such as 1,3-propanediol, lactic acid, succinic acid, and more.

Whether it is single-stage extraction, multi-stage counter-current extraction, or combined wash--extract--stripping processes, Tiei Extraction can provide custom skid-mounted solutions tailored to the client’s material characteristics, processing capacity, and site conditions.

If you are struggling with long extraction project timelines, complex on-site construction, or low production line flexibility, contact Zhengzhou Tiei Extraction Technology Co., Ltd. to obtain a customized skid-mounted CWL-M centrifugal extraction solution.
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820