Pyrite is an important mineral resource widely used in chemical, metallurgical, and other industries. To improve the grade and recovery rate of pyrite, a suitable mineral processing flow must be adopted. This article introduces the typical process flow for pyrite mineral processing, utilizing equipment such as jaw crushers, roller crushers, sawtooth wave jigs, and more.

Typical Process Flow and Equipment for Pyrite Mineral Processing

I. Jaw Crusher

Raw pyrite ore typically has large lump sizes and requires initial coarse crushing. The jaw crusher, with its strong crushing capacity and stable performance, is an ideal choice for the coarse crushing stage. This equipment uses the squeezing action of the movable and fixed jaws to break large pyrite lumps into medium-sized particles (approximately 50-150mm), facilitating subsequent fine crushing operations.

II. Roller Crusher

After coarse crushing, the pyrite needs further crushing into smaller particle sizes (typically 5-20mm) to meet the feed requirements of mineral processing equipment such as jig machines. The roller crusher employs a dual-roller extrusion crushing principle, offering a moderate crushing ratio and effectively avoiding over-crushing. This ensures a uniform particle size distribution of pyrite, improving the efficiency of subsequent separation.

III. Sawtooth Wave Jig Machine

The crushed pyrite is then fed into a sawtooth wave jig machine for gravity separation. The sawtooth wave jig utilizes pulsating water flow to stratify mineral particles of different densities: high-density pyrite particles settle at the bottom, while low-density gangue minerals are carried away by the water flow. By adjusting parameters such as stroke and frequency, the separation effect can be optimized to ultimately obtain high-grade pyrite concentrate.

The pyrite mineral processing flow mainly includes two stages: crushing and separation. The jaw crusher handles coarse crushing, the roller crusher completes medium and fine crushing, and the jig machine achieves efficient enrichment of pyrite through gravity separation. A rational combination of equipment and adjustment of process parameters can significantly enhance the efficiency and economic benefits of pyrite mineral processing.