Practice of a certain tin ore beneficiation process

In the mining industry, mineral processing technology is a very important part. A certain tin mine is no exception. In order to improve the grade and recovery rate of the ore, the mine has continuously practiced and improved the beneficiation process. This article will introduce the beneficiation process practice of a certain tin mine, including beneficiation process, operation steps, and effect evaluation.

1、 Beneficiation process

The beneficiation process of a certain tin mine mainly includes grinding, flotation, desulfurization, iron removal, gravity separation, and other links. Among them, grinding is the process of grinding ore into fine powder, with the aim of increasing the surface area of the ore and facilitating the adsorption of flotation agents. Flotation is the process of placing ground ore into a flotation cell, adding flotation agents, and separating useful minerals from waste rock through bubbles. Desulfurization and iron removal involve the removal of impurities such as sulfur and iron through chemical reactions to improve the grade of the ore. Finally, gravity separation involves separating the flotation concentrate again to improve the recovery rate.

2、 Operating Steps

1. Grinding

The grinding equipment mainly includes ball mills and self grinding machines. The operation steps are as follows:

(1) Feed the ore into the grinding machine.

(2) Add an appropriate amount of water and grinding medium.

(3) Start grinding, and the grinding time is determined based on the hardness and fineness requirements of the ore.

(4) After the grinding is completed, the ground ore is sent to the flotation tank.

2. Flotation

The flotation equipment mainly includes flotation cells and air flotation machines. The operation steps are as follows:

(1) Place the ground ore into a flotation cell.

(2) Add an appropriate amount of flotation agent, and the type and amount of flotation agent depend on the properties of the ore.

(3) Turn on the air flotation machine to generate bubbles.

(4) Useful minerals combine with bubbles and float to the liquid surface, while waste rocks sink to the bottom.

(5) Send the flotation concentrate to the desulfurization equipment.

3. Desulfurization

Desulfurization equipment mainly includes Redox tank and filter. The operation steps are as follows:

(1) Put the flotation concentrate into the Redox tank.

(2) Add an appropriate amount of oxidant and reducing agent to oxidize the sulfide into sulfate.

(3) Feed the reacted mixture into a filter to filter out solid impurities.

The filtered liquid contains sulfates and requires desalination treatment.

4. Iron removal

The equipment for iron removal mainly includes sedimentation tanks and filters. The operation steps are as follows:

(1) Put the filtered liquid into the settling tank.

(2) Add an appropriate amount of precipitant to form a precipitate for iron ions.

(3) Send the precipitated mixture into the filter to filter out solid impurities.

(4) The filtered liquid contains iron ions and requires deionization treatment.

5. Reselection

The equipment for re selection mainly includes a re selection machine and a vibrating screen. The operation steps are as follows:

(1) Feed the concentrate after iron removal into the gravity separator.

(2) Adjust the parameters of the gravity separator based on the density and color characteristics of the ore, so that useful minerals can be separated.

(3) Feed the separated concentrate into a vibrating screen to filter out fine impurities.

3、 Effectiveness evaluation

After the above beneficiation process practice, the ore grade and recovery rate of a certain tin mine have been significantly improved. In the process of practice, the mine has continuously made technological improvements and optimizations to further improve the beneficiation effect.

epilogue

The beneficiation process is a very important part of the mining industry, and the beneficiation process practice of a certain tin mine provides us with a good case. Through the introduction of this article, we can learn about the beneficiation process, operational steps, and effectiveness evaluation of a certain tin mine. At the same time, we can also see that the practice and improvement of mineral processing technology is a process of continuous exploration and improvement, and we need to constantly learn and improve to improve mineral processing efficiency and effectiveness.