The MQ2130 ball mill is a widely used grinding machine in small- and medium-sized mineral processing plants. In its model designation, "21" indicates a shell diameter of 2100 mm, and "30" indicates a shell length of 3000 mm. Featuring a compact structure and moderate processing capacity, the equipment is suitable for grinding operations in medium-scale mines.

Key Technical Parameters
The main technical specifications of the MQ2130 ball mill are as follows: shell dimensions of 2100 × 3000 mm; effective volume of approximately 9 m³; shell rotation speed of 22.2–25.2 r/min; motor power of 210 kW; grinding media charge of approximately 17–20 t; discharge particle size range of 0.3–0.074 mm; processing capacity of approximately 6.4–14 t/h; and a total machine weight of approximately 40–42 t.

Based on the discharge method, the MQ2130 ball mill is available in two types: grate-discharge and overflow. The grate-discharge type (MQG2130) features a grate plate at the discharge end that forces the discharge of material meeting the required particle size, thereby preventing over-grinding; it is better suited for coarse grinding and primary grinding stages, offering relatively higher output. The overflow type (MQY2130) relies on the natural flow of material for discharge without a forced discharge mechanism, making it more suitable for fine grinding or secondary grinding stages.

Application Areas
The MQ2130 ball mill is widely used for grinding both metallic and non-metallic ores. For metallic ores, it is used to grind gold, silver, iron, copper, lead-zinc, manganese, and molybdenum ores. For non-metallic minerals, it is suitable for grinding materials such as fluorite and graphite. Additionally, the equipment is used for grinding processes in industries such as cement, refractory materials, fertilizers, glass, and ceramics.

Selection Recommendations
The MQ2130 ball mill is a suitable choice for small- and medium-sized mineral processing plants with a daily processing capacity of approximately 150–340 tons. The grate-discharge type is recommended if the primary requirement is coarse grinding, whereas the overflow type is recommended if fine grinding is the priority. At the same time, energy-efficient configurations can be selected based on actual needs; by replacing sliding bearings with rolling bearings, energy consumption can be reduced by more than 30%, helping to lower long-term operating costs.