I. Classification by Slag Discharge Method
Manual Slag Discharge Type
The bowl is of an integral structure. After a period of operation (typically several hours), the machine must be stopped, and solid residues must be cleaned out manually.
Advantages: Simple structure; relatively low cost.
Disadvantages: Low efficiency; high labor intensity; intermittent operation.
Suitable for: Small-scale applications with low solid content.
Automatic Slag Discharge Type (Self-Cleaning)
The bowl consists of movable upper and lower parts. Under PLC control, it periodically opens a narrow gap, and accumulated solids are instantly ejected by centrifugal force without stopping the machine.
Advantages: Fully automatic continuous operation; high efficiency; large processing capacity; the mainstream choice for modern industry.
Disadvantages: Complex structure; relatively high cost.
Suitable for: Large-scale, continuous industrial production scenarios.
II. Advantages and Limitations
Advantages
High Efficiency: Separation speed is fast, significantly outperforming natural sedimentation or filtration.
Excellent Performance: Produces high-purity oil with extremely low water and impurity content.
High Automation: Capable of continuous operation, greatly reducing manual intervention.
Wide Applicability: Can handle various types of oil-water mixtures by adjusting parameters.
Environmental Benefits: Effectively recovers resources and reduces waste discharge.
Limitations
High Equipment Cost: Particularly for high-performance automatic models.
Energy Consumption: Requires electricity to drive high-speed rotation.
Maintenance Requirements: Rotating components need regular upkeep to ensure performance and longevity.
 Feedstock Requirements: Typically requires relatively stable feed flow and concentration to achieve optimal separation results.