After the compressed air is filtered and dried, it is sprayed into the grinding chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be crushed. The crushed materials rise with the suction of the fan. The airflow moves to the classification zone. Under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated.The fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classification wheel for collection, and the coarse particles descend to the crushing zone and continue to be crushed.
SILICON-CARBON ANODE MATERIALS PROCESSING TECHNOLOGY
Among advanced anode materials applied to lithium-ion batteries, silicon–carbon anodes have been explored extensively due to their high capacity, good operation potential, environmental friendliness and high abundance. Silicon–carbon anodes have demonstrated great potential as an anode material for lithium-ion batteries because they have perfectly improved the problems that existed in silicon anodes, such as the particle pulverization, shedding and failures of electrochemical performance during lithiation and delithiation.
Li22Si5 is formed from silicon material at high temperature, corresponding specific capacity is 4200mAh/g, it’s 11.29 times that of graphite anode material. At present, TSLA 4680 battery, Amperex 265kWh/kg NCM ternary battery, Guoxuan High-tech 210Wh/kg LFP electric core and GAC Sponge silicon battery pack all use silicon carbon anode technology, and the driving mileage has been increased from 300km to 600km or even more than 1000km. There’s still a lot of development space with the progress of technology in the future.
Fluidized Bed Jet Mill Grinding Process
Feature
- Achieve full ceramization, no magnetic substance.
- Overall sintering ceramic rotor up to the world’s advanced level, the line speed up to 65m/s.
- Control particle sizes precisely, available particle size D50:1~25μm.
- Zirconia ceramic nozzle.
- Australia imports LINATEX protection,seamless protection,wear- resistant.
- Recoil gas mantle sealing disc is sintered overall.
- German standards automatic controlling technology.
- Mettler Toledo weight sensor,precise control the feeding amount.
- Automatic regulator valve, pulverizer inlet pressure controlling constantly.
- Pressure difference sensors and automatic adjusting throttle, maintaining the stability of the system resistance.
- Siemens PLC automatic control, product quality consistent and stable.
Air Classifier Process
After the compressed air is filtered and dried, it is sprayed into the grinding chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be crushed. The crushed materials rise with the suction of the fan. The airflow moves to the classification zone. Under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated.The fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classification wheel for collection, and the coarse particles descend to the crushing zone and continue to be crushed.
Feature
- Air sealing system brings classify accurateing.
- Accurate classifying thanks to high efficiency classifying rotor.
- Particle size adjustable between 2-74μm.
- Classifying flow distribution technology brings narrow particle size distribution.
- The whole system is running under negative pressure.
- Dust on filter bag is cleaned by automatic impulse.
- Filtration rate can reach 99.99%.
- Back up filter behind dust collector to prevent dust entering air compressor.
- Automatic PLC control system for the plant. Simple operation.
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NO. 369, Road S209, Huanxiu , Qingdao City, China