Application of plate-and-frame filter press in calcium carbonate production.
Calcium carbonate is an important chemical raw material, which is widely used in papermaking, rubber, plastics, coatings and other fields. In the production of calcium carbonate, the plate and frame filter press is mainly used to filter the calcium carbonate slurry, remove impurities and moisture, and improve the quality and yield of the product.
Specifically, the application of plate and frame filter press in calcium carbonate production includes the following steps:
1.Mixing: Pour the calcium carbonate slurry into the mixing pool, add an appropriate amount of water and additives, and stir well.
2.Filtration: The mixed calcium carbonate slurry is poured into the plate and frame filter press, and the filter cloth is tightly attached to the filter plate by controlling the pressure of the hydraulic system to intercept suspended solids and moisture.
3.Washing: In the filtration process, the washing water can be added to the filter chamber by overflow to wash the filter cake to further improve the product quality.
4.Unloading: After a period of filtration, the hydraulic system is activated to separate the movable plate from the fixed plate, and separate the trapped suspended solids and moisture from the filter cloth. At this point, the filter cloth can be replaced and the filtration process can be restarted.
5.Drying: The filter cake after washing and discharging has a high moisture content and needs to be dried. Commonly used drying methods include natural drying and mechanical drying. Natural drying is the drying of filter cakes in the open air, which is suitable for small-scale production;Mechanical drying is the use of drying equipment to heat treat the filter cake, which is suitable for large-scale production.
6.Packaging: The dried calcium carbonate filter cake needs to be packaged for easy transportation and storage. Packaged products can be sold in different specifications.
Features and advantages of plate and frame filter press.
In the production of calcium carbonate, the plate and frame filter press has the following characteristics and advantages:
1.Good filtration effect: The plate and frame filter press adopts the principle of pressure filtration, which can efficiently remove impurities and water in the calcium carbonate slurry, and improve product quality and output.
2.Strong adaptability: The plate and frame filter press is suitable for different scales and different properties of calcium carbonate production process, and can be customized according to actual needs.
3.Convenient maintenance: The structure of the plate and frame filter press is relatively simple, and the daily maintenance and maintenance are more convenient, which reduces the operating cost of the equipment.
4.High reliability: The plate and frame filter press has high reliability and stability, which can ensure continuous production and high-efficiency operation.
5.Energy saving and environmental protection: The noise and vibration generated by the plate and frame filter press during operation are small, and the impact on the environment is small, which is in line with the development trend of energy conservation and environmental protection.
In a word, the plate-and-frame filter press has a wide range of application prospects and important practical significance in the production of calcium carbonate. With the continuous development of industrial technology, it is believed that the performance and function of plate and frame filter press will be further improved and improved.