Raw material information:
Lithium oxalate (Li ₂ C ₂ O ₄): a light yellow powder, slightly soluble in water (lower solubility than other lithium salts), is a raw material for the positive electrode precursor of lithium iron phosphate (LFP) batteries. LiFePO ₄ can be generated through pyrolysis. Raw material particle size: around D10:10um, D50:31um, D90:63um. The moisture content is less than 0.1%.
Challenge:
The particle size requirement for the graded fine powder is D50:8-13um
Equipment Introduction:
The high-precision Coanda jet classifier is an airflow classifier that utilizes the Coanda effect (fluid tends to flow against the surface) to effectively obtain three different particle sizes of products at once.
By utilizing this effect, the airflow flows along the curved surface, attracting and accelerating particles, and using the difference in inertial force to classify the particles. Fine powder with low inertial force flows together with the airflow near the curved surface. Coarse powder with high inertia force flies out in the opposite direction of the surface. The medium powder with high inertia force flies out in the middle direction.
Coanda jet grading machine can accurately grade the micro powder range that cannot be reached by the screening machine. The uniformity of particles contributes to the development and production of high-quality and high-performance products.
The highly dispersed nozzle in the feeding section achieves efficient grading performance. This device is even suitable for grading high viscosity materials or abrasives.
achievement:
Through the precise grading of this device, the fine powder particles with a diameter of D10: 2.985um, D50: 9.954um, and D90:22.805um are obtained.
Raw material particle size:
Coarse powder particle size:
Fine powder particle size（Target particle size）:
