Gemstone and Diamond Gravity Separation Process

The gemstone and diamond gravity separation process is a production method that separates and purifies diamonds based on 

density differences between diamonds and other minerals, achieved through a series of mechanical and fluid dynamics actions. 

Below is a detailed introduction to the diamond gravity separation process:

I. Basic Principle

The gravity separation process utilizes the different settling velocities or movement trajectories of mineral particles in a moving 

medium due to their differing densities and particle sizes to achieve separation. In diamond gravity separation, the density 

difference is the primary force driving particle separation.

II. Main Process

The diamond gravity separation process typically includes the following main steps:

1. Preparation Operations:

Crushing: Use crushers to break down large chunks of ore into smaller particles for subsequent processing. Types of crushers 

include jaw crushers and cone crushers, with the selection depending on the nature of the ore and processing requirements.

Grinding: Use grinding mills to further reduce the size of the crushed ore to a fineness suitable for gravity separation. Common 

grinding mills include ball mills and rod mills.

Classification and Washing: Employ hydraulic classification or screening to classify the material, simultaneously removing soil 

and impurities from sticky materials.

2. Separation Operations:

Gravity Separator Separation: The gravity separator is the core equipment in the diamond gravity separation process. It uses 

methods such as water flushing and shaking table separation to separate materials based on the density differences between 

diamonds and other substances. The design and operation of the gravity separator significantly impact the recovery rate and 

purity of the diamonds.

3. Product Treatment:

Dewatering and Drying: Perform dewatering treatment on the separated diamonds, followed by drying for subsequent use.

Tailings Treatment: Transport and pile the unselected or non-compliant minerals.

III. Main Equipment

Commonly used equipment in the diamond gravity separation process includes:

Crushers: Used to break large ore chunks into smaller pieces.

Grinding Mills: Used to further grind the crushed ore into finer particles.

Gravity Separators: Core equipment that utilizes density differences to separate diamonds.

Dewatering Equipment: Used for dewatering the separated diamonds.

IV. Technical Characteristics

High Efficiency: The gravity separation process can efficiently separate diamonds, improving recovery rates and purity.

Low Cost: Compared to other mineral processing methods, the gravity separation process has lower costs and is easier to 

implement and promote.

Environmental Friendliness: The gravity separation process generates less tailings, resulting in a relatively smaller environmental impact.

V. Applications and Development

The diamond gravity separation process holds significant application value in the diamond mining industry, enabling 

efficient separation and purification of diamonds. With technological advancements and increasing environmental awareness, 

future developments in the diamond gravity separation process will focus more on equipment optimization and technological 

innovation to enhance separation efficiency, reduce costs, and minimize environmental impact.

In summary, the diamond gravity separation process is an efficient, low-cost, and environmentally friendly mineral processing 

method based on density differences. It has broad application prospects and development potential in the diamond mining industry.