Zirconium sand gravity separation process flow

Zirconium sand is an important mineral resource widely used in industries such as ceramics, glass, and architecture. However, due to the uneven particle size distribution of zircon sand, its application effect will be affected, so gravity concentration process is required. This article will introduce the process flow of zirconium sand gravity separation, helping readers better understand the gravity separation process of zirconium sand.

1、 Properties of Zirconium Sand

Zircon sand is a mineral containing zircon, mainly composed of SiO2 and ZrSiO4. The particle size of zircon sand is uneven, with the large particles mainly being zircon and the small particles mainly being quartz. The colors of zircon sand include white, gray, yellow, etc., with a hardness of 7.5-8 and a density of 4.6-4.7g/cm ³。

2、 The gravity separation process of zircon sand

The gravity separation process of zircon sand mainly includes grinding, rough selection, intermediate selection, selection, and tailings treatment. The specific operation steps are as follows:

1. Grinding

After preliminary crushing, zircon sand needs to be ground to make its particle size more uniform. Grinding can be done using equipment such as ball mills and roller mills, and the grinding time is generally 4-6 hours.

2. Rough selection

The zircon sand after grinding enters the rough selection process. Rough selection can use equipment such as gravity separators and screening machines to separate impurities such as zircon and quartz. After rough selection, the grade of zircon sand can reach over 70%.

3. Successful selection

The zircon sand after rough selection enters the intermediate selection stage. In the selection process, flotation machines, gravity separators, and other equipment can be used to further separate impurities such as zircon and quartz. After selection, the grade of zircon sand can reach over 90%.

4. Selection

The selected zircon sand enters the selection process. Selection can use equipment such as flotation machines and centrifuges to further separate impurities such as zircon and quartz. After selection, the grade of zircon sand can reach over 95%.

5. Tailings treatment

After selection, the impurities in the zircon sand have been greatly reduced, but there is still a certain amount of impurities present. Therefore, tailings treatment is necessary to further remove impurities from the tailings. Tailings treatment can be carried out through methods such as flotation and filtration.

III. Summary

The zirconium sand gravity separation process is a complex process that requires multiple equipment to work together. By grinding, rough selection, intermediate selection, selection, and tailings treatment, the grade of zircon sand can be effectively improved, making it more suitable for various application fields. Therefore, in the production process of zircon sand, the gravity separation process is a very important step.