Manufacturing method of barite
I. Introduction
Barite is an important raw material for the production of chemicals, which is widely used in the fields of petroleum, chemical industry, ceramics, glass, medicine and so on. With the continuous development of science and technology, the manufacturing method of barite is also being improved and optimized. In this paper, we will introduce the manufacturing method of barite, including raw material preparation, grinding, calcination, water crushing, grading and other steps.
II, raw material preparation
The raw material for manufacturing barite is mainly natural barite ore, which contains a certain amount of impurities. In order to ensure the quality of the product, the raw materials need to be selected and processed. First of all, you need to choose the ore with pure texture and containing few impurities as raw materials. Secondly, the raw materials are crushed and screened to meet the requirements of the subsequent grinding process.
Third, grinding
Grinding is an important part of the barite manufacturing process, the purpose of which is to crush the raw ore to a certain fineness, in order to increase its specific surface area, to provide favorable conditions for the subsequent calcination reaction. Grinding equipment can be selected from ball mills, Raymond mills and other equipment, according to the specific circumstances. In the grinding process, the fineness of grinding needs to be controlled to avoid over-grinding phenomenon.
Four, calcination
Calcination is a key step in the barite manufacturing process, through high-temperature calcination, so that the barium sulfate in the barite ore decomposition, generating barium oxide and sulfur dioxide gas. Calcination equipment can choose rotary kiln, vertical kiln and other equipment, the specific operation needs to be adjusted according to the characteristics of the equipment and the actual situation. In the process of calcination, it is necessary to control the temperature, time and atmosphere and other factors to ensure the quality and yield of the product.
V. Water crushing
Calcined barite needs to be water crushing treatment, in order to crush it to the required particle size. Water crushing equipment can choose hammer crusher, impact crusher and other equipment, the specific choice should be made according to the actual situation. In the process of water crushing, need to control the water temperature and water flow rate to avoid damage to the equipment.
Sixth, grading
grading is the process of separating barite after water crushing according to the requirements of particle size, in order to ensure that the particle size distribution of the product meets the requirements. Classification equipment can be used vibrating screen, cyclone and other equipment, the specific selection needs to be based on the product size requirements and the actual situation. In the process of grading, the equipment needs to be cleaned regularly to avoid clogging.
VII. Packaging and storage
The manufactured barite needs to be packaged and stored. Packaging materials should be selected moisture-proof and waterproof to avoid the product moisture affecting the quality. It should be stored in a dry and cool place, avoiding direct sunlight and high temperature environment.
VIII, quality control and environmental requirements
In the manufacturing process of barite, product quality needs to be strictly controlled to ensure that the product meets the relevant standards and requirements. At the same time, it is also necessary to strengthen the environmental protection management, reduce the emissions of waste gas, waste water, waste residue and other pollutants in the production process to protect the environment.
IX.Conclusion
The manufacturing method of barite includes the steps of raw material preparation, grinding, calcination, water crushing and grading, and each link needs to strictly control the process parameters and operational requirements to ensure the quality and yield of the products. At the same time, it is also necessary to strengthen the environmental protection management, reduce the pollution emission in the production process, and realize green production.
