Barite Beneficiation Process

1. Crushing

The run-of-mine ore is first fed by a feeder into a fine jaw crusher for secondary crushing. The jaw crusher, known for its robust structure and strong crushing capacity, uses the periodic squeezing motion between the movable and fixed jaws to break large pieces of raw barite ore into smaller particles (typically less than 30mm), preparing the material for subsequent processing stages.

2. Screening

The coarsely crushed material is then conveyed to a vibrating screen for sizing. The vibrating screen utilizes the excitation force generated by vibration motors to make the material on the screen surface move forward in a jumping motion, achieving classification by particle size. Material meeting the feed size requirements for the next stage (e.g., -30mm +2mm) proceeds directly to the jig machine for separation. The oversize material is returned for further crushing, forming a closed-circuit cycle to ensure uniform feed size.

3. Gravity Separation using Jig Machine

The properly sized material enters the jig machine, which is the core equipment in barite beneficiation. Its working principle involves using pulsating water flow in the vertical direction to separate minerals of different densities. The density of barite (4.5 g/cm³) is much higher than that of its common gangue minerals (such as quartz, calcite, etc., with densities usually less than 2.7 g/cm³).

Under the action of the pulsating water flow, the high-density barite particles settle to the bottom of the bed, becoming the concentrate. The low-density gangue particles remain in the upper layer and are carried away by the water flow as tailings. The barite concentrate and tailings are separately collected via the jig machine's specific discharge device.

4. Dewatering

The barite concentrate obtained from the jig requires dewatering. A high-frequency vibrating screen effectively removes residual moisture, ultimately yielding a dry, grade-qualified barite concentrate product. For inquiries regarding equipment selection or process optimization solutions, please feel free to call for consultation.