Baryte separation equipment

What are the components of Baryte separation equipment：

1. Gravity separation

Jaw breakage or impact breakage, jig, shaking table, roller breakage, spiral classifier, spiral chute, etc.

2. Flotation

Crushers, flotation machines, vibrating screens, ball mills, thickeners, etc.

3. Gravity separation - magnetic separation

Jigging machine, jaw crusher or impact crusher, magnetic separator, roller crusher, spiral classifier, shaking table, etc

4. Gravity separation - flotation

Ball mill, jaw or impact crusher, roller crusher, jig, shaker, spiral classifier, flotation machine, etc

The specific baryte separation equipment needs to be configured according to the baryte separation process confirmed by the customer.

Baryte separation equipment image：

Baryte separation equipment introduce：

1、 Overview

Baryte is a common mineral of barium. Its composition is Barium sulfate, chemical composition BaO 65.7%, SO334.3%. It is an important industrial mineral raw material for manufacturing barium and barium compounds. Taking Baryte deposits in China as an example, they are mainly divided into sedimentary deposits, volcanic sedimentary deposits, hydrothermal deposits and residual deposits. According to the type of ore, the nature of raw ore, the scale and use of the mine, the commonly used Baryte beneficiation methods are mainly ore, gravity separation, flotation, magnetic separation and combined process.

Generally speaking, residual Baryte ore is easy to select, and gravity concentration method can be preferred; In addition to gravity concentration method, flotation method is also required to select sedimentary Baryte ore and hydrothermal Baryte ore with sulfide ore and fluorite. Next, we will explain each Baryte beneficiation process and the Baryte beneficiation equipment used in the process one by one.

2、 Beneficiation method of Baryte

1. Manual separation of Baryte.

After raw ore mining, using simple manual beneficiation is a commonly used beneficiation method for many small mines. Due to the high geological grade and stable quality of some mines, qualified Baryte products can be selected according to the color and density of Baryte and associated minerals. Baryte of rich block ore is selected manually, with particle size of 30-150mm, BaSO4> 95%, generally greater than 92%. Generally speaking, the manual separation method is simple and easy, and can be carried out without Baryte beneficiation equipment. Suitable for small-scale mineral processing, but with low productivity, high requirements for ore grade, and serious resource waste.

2. Baryte gravity concentration method.

Baryte gravity separation method is mainly used to separate Baryte according to the Density contrast between barite and associated minerals, including ore washing, screening, desliming, jumping, shaking table and other processes, mainly used to treat residual Baryte ore.

Through Baryte beneficiation equipment such as ore washing, screening, crushing, grading and desliming, jumping, and shaking table, raw ore can obtain high-quality Baryte concentrate with a product grade of more than 88%. Jaw crushers or impact crushers are generally used in the crushing stage, while double roll crushers are generally used for fine crushing operations. Heavy medium rotary drum sorting machine, cone sorting machine, skip sorting machine or shaking table. Used to select stages. When the embedded particle size of Baryte is greater than 2mm, heavy medium separation can usually be used. Skip sorting, but the upper limit of particle size for heavy medium sorting is 50mm, and the upper limit of particle size for wet dry skip sorting is about 20mm. When the embedded particle size of Baryte is less than 2mm, the shaker can be used for separation, but before the separation operation, the Hydrocyclone must be used to remove the mud to improve the separation effect.

3. Baryte flotation method.

Baryte ratio is significant, with a specific gravity of 4-4.6 and good floatability. The Baryte flotation method is mainly used to separate Baryte according to the difference in surface physical and chemical properties between barite and associated minerals, and is commonly used to deposit Baryte ore, sulfide ore, fluorite and other associated hydrothermal Baryte ores. Taking China as an example, Baryte ore has more lean ore and less rich ore, and more than 80% of the ore deposits are accompanied by other minerals. For ores and tailings with finer embedded particle size, flotation method must be used. The commonly used flotation processes of Baryte mainly include positive flotation and reverse flotation, of which the purpose of reverse flotation is to remove alkali metal sulfide.

As a common salt mineral, the flotation process of Baryte can be divided into two types according to the adsorption form: one is to use anionic collectors such as fatty acid alkyl sulfate and alkyl sulfonate to adsorb on the surface of Baryte mineral in the form of chemical adsorption, so as to separate it from other associated minerals. The other is to use cationic amine collector to float Baryte in the form of physical adsorption. Due to the ideal use of anionic collectors, amine collection efficiency is low and is extremely sensitive to the impact of mineral mud. Generally, NaOH can be added to the ball mill with a pH value of 8-10, water glass can be used as a regulator in the pulp, and Baryte can be floated with a solid concentration of 40% -50%.

4. Baryte gravity magnetic separation method.

Baryte magnetic separation method is mainly based on the surface magnetic difference between Baryte and iron oxide minerals. It is often used to select Baryte minerals containing iron minerals, such as Siderite. Magnetic separation is usually combined with gravity separation as the raw material of Baryte for barium based drugs with low iron content.

5. Baryte gravity flotation method.

The combined gravity flotation process is commonly used for Baryte ore associated with sulfide ore. Taking the separation of Baryte quartz Calcite ore as an example, in the combined process of flotation gravity separation, Sodium metasilicate and capture agent are added to the flotation cell to remove quartz impurities to obtain mixed ores of Baryte and Calcite. Then, according to the Density contrast between gangue minerals such as Calcite and Baryte, gravity separation equipment such as skip and shaker are used for gravity separation to obtain Baryte concentrate.

Most of the Baryte ores mined in the early stage are high grade ores, which are usually manually or gravity separated with low cost and low technology content. However, with the low grade of Baryte ore, the complexity of ore properties, magnetic separation, flotation and combined beneficiation are gradually widely used in Baryte ore. It is suggested that all mine owners develop scientific and reasonable flotation process according to the beneficiation test report and select Baryte beneficiation equipment to avoid unnecessary economic losses.

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