The Alumina ceramic hydrocyclone Gravity separator is a highly efficient solid-liquid/solid-solid separation device that combines the centrifugal separation of a Hydrocyclone with the separation by gravity. Its core flow path components are made of alumina ceramic. Its core advantage lies in leveraging the high wear and corrosion resistance of alumina ceramic, making it suitable for separating highly impure and abrasive materials such as ore slurry, coal slurry, and industrial wastewater. The synergistic effect of "centrifugal force + gravity" improves separation accuracy and efficiency, making it widely used in mining, coal mining, metallurgy, and chemical industries.

Separation Principle: Synergistic Effect of Centrifugation and Gravity

The separation process of this equipment is a progressive synergy of "hydrocyclone centrifugal separation" and "gravity sedimentation separation," specifically divided into three stages:

1. Stage 1: Tangential Feed → Centrifugal Force-Driven Separation

The material to be separated (e.g., a 20%-40% concentration slurry) is fed into the cyclone chamber at high speed (typically 5-10 m/s) through a tangential feed port. This creates a strong rotating vortex within the chamber (the flow field is divided into an "outer layer downflow" and an "inner layer upflow").

Outer Layer Downflow: Under the influence of centrifugal force, high-density coarse particles (e.g., particles with a size greater than 50 μm) are thrown toward the inner wall of the cyclone chamber due to their high inertia. They then move toward the conical section along the downflow. Centrifugal force is the core driving force of separation during this process (the centrifugal acceleration can reach 100-1000 times the acceleration of gravity). times, far exceeding the efficiency of gravity settling alone);

· Inner Upwelling: Low-density fine particles (such as ore sludge with a particle size<20μm) and clear liquid gather in the center of the cyclone chamber due to weak centrifugal force, forming an upward "air column" of peripheral flow that moves toward the overflow pipe.

2. Second Stage: Conical Section → Gravity-Enhanced Settling

The diameter of the conical section of the cyclone chamber gradually decreases, further increasing the rotational speed of the outer downwelling (increasing centrifugal force) and simultaneously intensifying the effect of gravity:

· Coarse particles, under the combined effects of centrifugal force and gravity, accelerate toward the bottom sedimentation outlet, resulting in more complete collision and separation between particles (preventing fine particles from being entrained by coarse particles);

· The conical section's constricted flow path also "compresses" the flow field, reducing eddy current losses and ensuring that coarse particles flow steadily along the wall, avoiding loss of separation accuracy due to flow turbulence. 3. Third Stage: Outlet Separation → Final Classification

· Grit Outlet (Bottom): Coarse particles continue to settle under gravity and are eventually discharged as a high-concentration underflow (e.g., slurry concentration of 50%-70%), completing coarse particle recovery or impurity removal.

· Overflow Pipe (Top): Fine particles and clear liquid are discharged as a low-concentration overflow (e.g., slurry concentration of 5%-15% or clear liquid), achieving "coarse-fine" particle classification or solid-liquid separation.