High-Efficiency Ultrafine Barite Powder Production Line in Kazakhstan

Project Background：

Kazakhstan is one of the world’s richest regions in barite (BaSO₄) reserves, with major mining areas located in the southern Zhambyl and Kyzylorda regions. To meet the growing demand for API 4.2 grade drilling mud weighting agents, chemical-grade ultrafine barium sulfate, and high-whiteness barite powder for European coatings, a large local mining company decided to build a new high-fineness, heavy-duty ultrafine barite production line.

Core technical requirements:

• Finished product fineness: D97 ≤ 10 μm (1250 mesh)
• Capacity: ≥ 5 tons/hour (single line)
• BaSO₄ content: ≥ 96%
• Whiteness: ≥ 93%
• Extremely narrow particle size distribution with no oversized particles (specifically for drilling fluid applications)

Process Solution & Equipment Configuration

The customer selected the full set of domestically manufactured Epic Powder ultrafine Barite Powder Production Line. The core equipment includes:

1. Primary Grinding Equipment

• Model: Epic Powder Ball Mill
• Liner/Media: High-alumina ceramic liners + zirconia-reinforced ceramic balls (specific gravity 4.6, 3× the wear resistance of ordinary ceramic balls)
• Features: Low-temperature grinding, ideal for high-density (4.2 g/cm³) barite; stable product fineness of D97 = 9.5–10 μm

2. Secondary Precision Classification Equipment

• Model: Epic Powder ITC Air Classifier
• Classifier wheel diameter: 1000 mm, maximum speed 2400 rpm
• Cutting precision: ±0.3 μm; thoroughly removes >15 μm coarse particles, meeting API drilling fluid specifications

3. Auxiliary Systems

• Large pulse-jet baghouse dust collector (air volume 60,000 m³/h)
• Automatic packaging line (25 kg and 1000 kg jumbo bags)
• Fully enclosed negative-pressure operation + nitrogen protection (compliant with Kazakhstan ATEX explosion-proof standards)
• Siemens PLC + remote monitoring system

Acceptance Test Results – August 2025

• Finished product fineness: D97 = 9.6–9.9 μm
• D50: 2.8–3.1 μm
• Particle size distribution: (D97 – D10) / D50 ≤ 1.9 (very narrow)
• Capacity: 5.3–5.6 t/h (maximum measured 5.9 t/h)
• Whiteness: 94.2%–94.8%
• BaSO₄ content: 96.8%–97.3%