Collaborative application of quartz ball mill and spiral classifier in 10 tons per hour production line

Analysis of application of quartz ball mill and spiral classifier

I. Equipment selection and technical parameters

The quartz ball mill is recommended to use the MQY2740 model, with a cylinder diameter of 2.7 meters, a length of 4 meters, equipped with a 132kW motor, and a processing capacity of 10-12 tons/hour. The spiral classifier is recommended to use the FG-12 model, with a spiral diameter of 1200mm and an inclination of 18°, forming a closed-loop circulation system with the ball mill. Key parameters include:

Feed particle size: ≤25mm

Discharge fineness: 200 mesh pass rate ≥90%

Circulation load rate: 150%-200%

II. System process optimization

Crushing stage: Jaw crusher crushes the raw ore to ≤25mm

Grinding and classification: Ball mill and spiral classifier form a closed-circuit system, and the return sand ratio of the classifier is controlled at 40%-60%

Energy consumption control: The unit energy consumption of the whole system should be ≤18kWh/ton

Water quality management: The slurry concentration is maintained at 60%-65%, and a dewatering screen is required

III. Key technical innovations

Wear-resistant lining design: High chromium alloy lining is used, with a service life of more than 8,000 hours

Intelligent control system: Real-time monitoring of mill current, classifier overflow concentration and other parameters through PLC

Energy-saving transformation: Rubber lining is added to the spiral blade to reduce power consumption by 15%