For fine processing of calcium carbonate (CaCO₃), a small pulverizer is essential in compact crushing-sand production lines. This system typically includes jaw crushers, hammer mills, Raymond mills, or vertical roller mills, paired with vibrating screens and classifiers to produce 80-400 mesh powders.
| Equipment | Model | Power (kW) | Output (t/h) | Fineness (mesh) |
|---|---|---|---|---|
| Jaw Crusher | PE-250×400 | 15 | 5-20 | 10-50 |
| Hammer Mill | PCΦ400×300 | 11 | 3-10 | 60-200 |
| Raymond Mill | 4R3216 | 37 | 1.5-4.5 | 80-325 |
| Vibrating Screen | 2YK1230 | 5.5 | 10-50 | – |
1. Primary Crushing: Jaw crusher reduces raw limestone to ≤50mm.
2. Secondary Grinding: Hammer mill or roller mill pulverizes material to ≤5mm.
3. Classification: Screens and air classifiers separate particles by size.
4. Packaging: Finished powder is stored in silos or bagged.
Q1: How to reduce dust pollution?
A: Install pulse dust collectors at transfer points and sealing covers on conveyors.
Q2: What causes low output fineness?
A: Check grinding media wear, classifier speed, or feed size uniformity.
Q3: Energy-saving options?
A: Opt for variable-frequency drives (
