The CWL-250 series of centrifugal extractors are widely recognized in the pharmaceutical industry

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Uses: 1. Used to mix and separate two liquids with different densities that are immiscible with each other. 2. It is mainly used in the extraction processes of small enterprises. Power requirement: 380V AC. Main structure: The entire system consists of a frame, a body, and a motor (an inverter must be purchased separately). The body is equipped with two feed ports and two discharge ports (an automatic flushing device can also be installed). Structural material: Stainless steel/304/321/316L/904L/PP/PVC/polytetrafluoroethylene/titanium alloy, etc. Controller: The drum speed is controlled via an inverter-driven controller. Working principle: The high-speed rotation of the drum and mixer ensures thorough mixing of the two liquid substances. The mixed liquid then enters the drum, where separation is achieved through centrifugal force. The separation efficiency between the different liquids can be adjusted by changing the rotation speed and the diameter of the heavy-phase baffle. Working principle of the CWL-250 series centrifugal extractors: (1) Mixing and mass transfer process   The light and heavy phase solutions enter, in certain proportions, into the annular mixing zone formed between the drum and the housing through two feed ports. Thanks to the rotation of the drum, the turbine discs and impellers facilitate rapid mixing and dispersion of the two phases, enabling thorough mass transfer between them. Complete the mixed mass transfer process. (5) Two-phase separation process: The mixture enters the drum under the action of the vortex disc. Within the compartments formed by the partition plates, the mixture rotates rapidly in sync with the drum. Under the effect of centrifugal force, the heavier phase gradually moves away from the center of the drum and toward its walls as it flows upward ； The less dense light-phase liquid gradually moves away from the drum wall toward the center, and the clarified two-phase liquid eventually enters the collection chambers through their respective weirs, from where it is led out of the machine via pipes, thus completing the two-phase separation process. Overview of the performance features of the CWL-250 series centrifugal extractors: 1. The CWL-250 series centrifugal extractors are commonly used in the extraction processes of medium-sized enterprises; they can operate in a single stage or in multiple stages with continuous counter-current operation. According to customer requirements, we can design and manufacture centrifugal extractors with drum diameters ranging from 150 mm to 250 mm. The drum diameter of the CWL-250 series centrifugal extractors is 250 mm. 2. The advantages of this device are its high rotational speed, large separation factor, and wide range of applicable systems. It is mainly used in the extraction processes of medium-sized enterprises, such as in the extraction and back-extraction processes for phenol-containing wastewater. 3. This device has strong adaptability; it is not affected by changes in the material used, and it can handle systems with high viscosity and a small difference in density between the two phases. It also possesses excellent demulsification capabilities. 4. It offers good sealing properties, meeting the requirements for use in environments with explosive hazards, as well as those involving toxic, harmful, or volatile substances, in compliance with GMP standards. 5. It is primarily used in the extraction processes of medium-sized enterprises, and it can fully address various extraction challenges faced by such enterprises. Technical specifications for the CWL-250 series of centrifugal extractors: Model CWL250-N CWL250-M Drum diameter (mm) 250 250 Maximum flow rate (L/h) 3000 3000 Rotation speed (r/min) 0–1450 0–1450 Separation factor 588 588 Operating power (kW) 5.5 0.75–2.5 Power supply 380V 380V Applicable flow ratio range 1//30–30/1 1//30–30/1 Applicable viscosity (cps) ≤3000 ≤3000 Acceptable range for density difference between the two phases (g/ml) 0.03–3 0.03–3 Solid content in the liquid