The gravity separation process of seaside silicon sand ore

As an important building material, silica sand has a wide range of applications in industries such as architecture, glass, and ceramics. The coastal area is also rich in silica sand resources, but due to the uneven Granularity of silica sand and more impurities, it needs gravity separation process to reach the standards required for industrial production. This article will introduce the gravity separation process of seaside silicon sand ore to everyone.

1、 Pretreatment of silica sand ore raw materials

The raw material of silica sand ore needs to undergo pre-treatment before entering the gravity separation process. Firstly, rough selection is required to remove impurities such as large blocks of material and soil from the silica sand ore raw material. Then proceed with intermediate selection to remove small particles and impurities such as quartz sand from the silica sand ore raw material. Finally, select and remove colored impurities such as iron minerals from the silica sand ore raw materials.

2、 The gravity separation process of silica sand ore

1. Grinding

After pre-treatment, the raw material of silica sand ore needs to be ground. The purpose of grinding is to grind the raw material of silica sand to a certain Granularity for the subsequent gravity concentration process. Ball mill is used for grinding, and the grinding time is determined according to the hardness and Granularity of silica sand raw materials.

2. Wet magnetic separation

Wet magnetic separation is an important link in the gravity separation process of silica sand ore. Wet magnetic separation uses a wet high-strength magnetic separator, which separates colored impurities such as iron minerals from the raw material of silica sand ore through the action of a magnetic field. The key to wet magnetic separation is the strength and direction of the magnetic field, which needs to be adjusted based on the magnetism of the silica sand ore raw material and the magnetism of colored impurities.

3. Reselection

Gravity separation is the main link in the gravity separation process of silica sand ore. The gravity separation machine is used to separate small particles and impurities such as quartz sand from the raw materials of silica sand ore through the action of gravity. The key of gravity concentration is the selection area of the gravity concentrator and the inclination of the selection area, which needs to be adjusted according to the density and Granularity of silica sand raw materials.

4. Dehydration

Dehydration is the final step in the gravity separation process of silica sand ore. Dehydration uses a dewatering screen, which removes moisture from the raw material of silica sand ore through vibration. The key to dewatering is the size of the screen aperture and the inclination angle of the screen surface of the dewatering screen, which need to be adjusted according to the moisture content and Granularity of the silica sand raw materials.

3、 Summary

The gravity separation process of seaside silica sand ore includes pre-treatment of silica sand ore raw materials, grinding, wet magnetic separation, gravity separation, and dehydration. Each link has its own key technologies and operational steps, which need to be adjusted based on the characteristics of silica sand ore raw materials. Through a reasonable gravity separation process, impurities in the raw materials of seaside silica sand ore can be separated to meet the standards required for industrial production.

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