Tungsten-tin ore is an important mineral resource for extracting metallic tungsten and tin. Tungsten has a high melting point and high hardness, so it is widely used in aerospace, military industry, electronics and other fields. Tin is usually used in electronics, chemicals, metallurgy and other industries. Ore dressing is a key means to improve the grade and recovery rate of tungsten-tin ore. The ore dressing process of tungsten-tin ore is complicated and requires the use of a variety of process methods and equipment. This article introduces the process flow and equipment of tungsten-tin ore dressing.
In the beneficiation process of tungsten-tin ore, it generally goes through processes such as crushing, grinding, flotation, gravity separation, magnetic separation and dehydration.
Process: Feed the raw ore into jaw crusher, cone crusher and other equipment for crushing, control the feed amount and discharge particle size of the crusher, and ensure that the ore is crushed into particles of appropriate size.
Purpose: Prepare for the subsequent grinding and beneficiation process so that the ore can be better processed later.
Equipment: Commonly used equipment includes jaw crusher, impact crusher and hammer crusher. These equipment crush the raw ore into particles of appropriate size, preparing for the subsequent grinding and beneficiation process. For example, the jaw crusher has the characteristics of simple structure, easy operation and low energy consumption, and can initially crush large pieces of ore into smaller particles.
Process: The crushed ore is sent to the ball mill, short column mill and other equipment for fine grinding, and the feed amount of the mill and the amount of grinding media are controlled to achieve a certain fineness.
Purpose: To refine the ore and increase the surface area of the mineral, so that it can better interact with the reagents and other separation equipment in the subsequent beneficiation process.
Equipment: Ball mill, mining mill and vertical mill are commonly used grinding equipment. The grinding process further refines the crushed ore to a certain fineness, increases the surface area of the mineral, and facilitates the subsequent interaction with the reagents and separation equipment. For example, the ball mill has the characteristics of large production capacity and easy maintenance.
Process: Put the re-selected tungsten-tin minerals into the flotation tank, add appropriate reagents and air, and control the amount of flotation agent and flotation time. Select different flotation machines according to the properties of the ore, such as mechanical flotation machines, air flotation machines, etc.
Purpose: Separate tungsten-tin minerals from other minerals by using the differences in the buoyancy and surface properties of minerals in water, especially for ores with smaller particle sizes.
Equipment: The flotation process can use mechanical flotation machines, air flotation machines and other equipment. Put the ground ore into the flotation tank, add reagents and air to generate foam on the surface of the mineral, and separate tungsten-tin minerals from other minerals by using the differences in the buoyancy and surface properties of minerals in water, especially for ores with smaller particle sizes.
Process: The ground ore is gravity separated by gravity separation equipment, such as gravity separation machine, centrifugal separation machine, etc. According to the properties of the ore and the characteristics of the gravity separation equipment, adjust the parameters such as water flow rate and gravity field strength.
Purpose: Separate tungsten-tin minerals by using the different characteristics of tungsten-tin minerals and other minerals in the gravity field, which is suitable for ores with larger particle sizes.
Equipment: Gravity separation machines, centrifugal separation machines and other equipment can be used in the gravity separation process. Separate tungsten-tin minerals by using the different characteristics of tungsten-tin minerals and other minerals in the gravity field, which is suitable for ores with larger particle sizes. For example, by adjusting parameters such as water flow rate and gravity field strength, efficient separation can be achieved.
Process: Magnetic separation is performed on the tungsten-tin ore after flotation, and it is placed in a magnetic separator. The magnetic field strength and separation time are used to separate the magnetic tungsten-tin minerals. Magnetic separators, high-gradient magnetic separators and other equipment can be selected.
Purpose: Further separate magnetic minerals and improve the purity of tungsten-tin minerals.
Equipment: The magnetic separation process can use magnetic separators, high-gradient magnetic separators and other equipment. Magnetic separation is performed on the tungsten-tin ore after flotation, and the magnetic field strength and separation time are used to separate the magnetic tungsten-tin minerals and further improve the purity of the minerals.
The dehydration process can be carried out by using equipment such as filter presses and centrifuges. The tungsten-tin ore after magnetic separation is dehydrated to remove the water in it and prepare for subsequent processing and transportation.
The above introduces the beneficiation process and equipment of tungsten-tin ore. It is not difficult to see that the beneficiation process of tungsten-tin ore is relatively complicated, and it often requires multiple combined processes to achieve the improvement of the concentrate grade. Here it is recommended that you still find a professional manufacturer to do the process design and equipment selection, so as to find a more suitable beneficiation process and equipment, avoid waste of resources, and create greater benefits for the enterprise.
