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[Chemical Knowledge]：Manufacturing method and process of barite

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The manufacturing method
of barite
1. Introduction

Barite is an important chemical raw material, widely used in petroleum, chemical, ceramics, glass, medicine and other fields. With the continuous development of science and technology, the manufacturing method of barite is also constantly improved and optimized. This article will introduce the manufacturing method of barite, including raw material preparation, grinding, calcination, water crushing, classification and other steps.

2. raw material preparation

manufacturing barite raw materials are mainly natural barite ore, which contains a certain amount of impurities. In order to ensure the quality of products, raw materials need to be selected and processed. First of all, it is necessary to choose the ore with pure texture and less impurities as the raw material. Secondly, the raw materials are crushed and screened to meet the requirements of the subsequent grinding process.

3. grinding

grinding is an important link in the barite manufacturing process. Its purpose is to crush the raw ore to a certain fineness to increase its specific surface area and provide favorable conditions for the subsequent calcination reaction. Grinding equipment can choose ball mill, Raymont mill and other equipment, according to the specific situation to choose. In the grinding process, it is necessary to control the grinding fineness to avoid over-grinding.

4. calcination

calcination is a key step in the barite manufacturing process, through high temperature calcination, the barite ore barium sulfate decomposition, the formation of barium oxide and sulfur dioxide gas. The calcination equipment can be selected from rotary kiln, shaft kiln and other equipment, and the specific operation needs to be adjusted according to the characteristics of the equipment and the actual situation. In the calcination process, factors such as temperature, time and atmosphere need to be controlled to ensure the quality and output of the product.

5. Water Crushing

The calcined barite requires a water crushing treatment to comminute it to the desired particle size. Water crushing equipment can choose hammer crusher, impact crusher and other equipment, the specific selection should be carried out according to the actual situation. In the process of water crushing, it is necessary to control the water temperature and water flow speed to avoid damage to the equipment.

6. classification

classification is a process of separating barite after water crushing according to the particle size requirements to ensure that the particle size distribution of the product meets the requirements. The grading equipment can be selected from vibrating screen, cyclone and other equipment, and the specific selection should be carried out according to the product particle size requirements and actual conditions. During the grading process, the equipment needs to be cleaned regularly to avoid clogging.

7. Packaging and Storage

Barite needs to be packaged and stored. Packaging materials should be moisture-proof, waterproof materials, in order to avoid the impact of moisture on the quality of the product. Storage should be placed in a dry, cool place, avoid direct sunlight and high temperature environment.

8. quality control and environmental protection requirements

In the manufacturing process of barite, it is necessary to strictly control product quality to ensure that products meet relevant standards and requirements. At the same time, it is also necessary to strengthen environmental protection management, reduce the discharge of waste gas, waste water, waste residue and other pollutants in the production process, and protect the environment.

9. conclusion The manufacturing method of

barite includes raw material preparation, grinding, calcination, water crushing, classification and other steps. Each link needs to strictly control the process parameters and operating requirements to ensure the quality and output of the product. At the same time, it is also necessary to strengthen environmental management, reduce pollution emissions in the production process, and achieve green production.

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