Jet mill achieves a breakthrough in the grinding of lithium battery materials

Lithium iron phosphate is a new type of lithium-ion battery electrode material. The ultrafine jet mill can pulverize lithium iron phosphate to 1-5 microns and achieve precise classification.

The lithium iron phosphate ultra-fine jet pulverization production line is a special production line specially developed for lithium iron phosphate pulverization according to the needs of the manufacturer and the problems encountered in the production and treatment of lithium iron phosphate. This production line is a closed cycle system that uses high-temperature dry nitrogen. , A device for simultaneous ultra-fine grinding and drying of lithium iron phosphate; the sintering system, crushing system, and packaging system for producing lithium iron phosphate are fully enclosed. Lithium iron phosphate is enclosed and transported during the sintering, crushing, packaging and other processes; the crushing system uses high-temperature dry nitrogen as the crushing gas source to dry the lithium iron phosphate instantaneously, and the lithium iron phosphate crushing and drying are carried out at the same time. This system solves the problem of continuous drying of phased products in the production process of lithium iron phosphate, saves energy and reduces production costs.

The new type of lithium iron phosphate ultrafine jet pulverization production line is a dedicated production line system that integrates high-temperature nitrogen protective jet pulverization and drying systems. Using high-temperature dry gas, while ultra-fine grinding of lithium iron phosphate cathode material for lithium batteries, supersonic airflow rotary jet flow field is used to conduct heat and mass transfer and instantaneous drying of the surface water of the material to achieve ultra-fine grinding of lithium iron phosphate. +Integration of trace moisture drying. When the feed moisture is 3000PPM and the feed particle size d50=20-30μm, the finished product particle size d50=0.6-2μm, d100=4-10μm, and the finished product moisture 200-500PPM after the integration of crushing and drying. Taking the production line with an annual output of 3000T as an example, the energy consumption per ton is 650-900 yuan/T, and the nitrogen consumption is 410-600Nm3/h. Compared with the traditional double-cone drying or roller furnace drying and ultra-fine grinding process, it saves 4.5-5.5 million yuan in energy consumption every year. At the same time, the ultra-fine pulverization and drying process realizes a fully closed-circuit air conveying system, which produces no dust pollution throughout the process. This process realizes the effective combination of lithium iron phosphate ultrafine grinding technology and ultrafine particle surface trace moisture control technology, and effectively solves the current problems that restrict the service life and safety of lithium batteries. It is lithium iron phosphate ultrafine powder for lithium battery cathode materials. A major breakthrough in the field of body preparation.

Various types and models of ultra-fine jet mills, classifiers, and crushing production lines are suitable for rare earth, mining and metallurgy, chemical, energy, medicine, feed, food and other industries. Whether the processed materials are ore, rare earths, non-ferrous metals, plastics, medicinal materials, agricultural products, or flammable, explosive, and oxidizable materials, it can meet your requirements on the particle size, output, and energy consumption of the finished product.