Equipment knowledge

Why Calcium Oxide Costs More Than People Expect Calcium oxide is abrasive, hygroscopic, and reactive. Those three words matter because they define what the classifier has to fight through. When the target is D97=8μm, you are asking the machine to separate a small stream of fines from a much larger stream of coarse material. The

When coarse particles mix into the fine fraction after classifying negative electrode graphite, the industry calls it “coarse carryover”. This is a common issue on air classifiers and turbo classifiers in the field, yet it directly hurts the batch consistency of lithium-ion anode materials. This article serves two audiences: plant process engineers who need a

Silicon anode material is hard to classify for a different reason than graphite. Graphite fights the classifier because its particles are flat plates. Silicon fights it because of what happens once the particle is inside the battery, and because the material you actually run is rarely pure silicon. In production it is almost always a

A company spends millions upgrading a grinding line. Acceptance test comes back clean. D50 is right on target. Three months later, downstream customers are calling about batch color inconsistency, unstable dispersion, film surface defects. The problem usually is not the mill. It is the classification system. Specifically, dynamic stability and cutting sharpness get overlooked during

Part 1 — What Alumina Classification Actually Means Aluminium oxide (Al₂O₃) is never a single product. The same chemistry can go into a ceramic body, a polishing abrasive, a thermal filler or a refractory castable, but each application needs a completely different particle size range. Alumina classification is the dry separation step that sorts ground