50-100TPH Modular Gold Beneficiation Plant with Mercury-Free Processing and Skid

The MGBP series modular gold beneficiation plant is a complete turnkey solution engineered for rapid deployment at remote alluvial gold mining sites. Designed in direct response to the needs of small and medium-scale miners in Colombia’s Antioquia, Chocó, and Bolívar departments, this skid-mounted system integrates multiple processing stages into transportable container modules. The plant transitions from container arrival to full production within 7-14 days, dramatically reducing the capital expenditure timeline compared to conventional fixed-plant construction which typically requires 6-12 months. Every component is pre-assembled, pre-wired, and factory-tested before shipment to ensure plug-and-play commissioning at the mine site.

The integrated processing flow encompasses a rotary scrubbing trommel for feed preparation and clay removal, followed by a multi-stage centrifugal concentration circuit employing STLB series concentrators for primary gold recovery. Concentrates are further upgraded on 6S shaking tables to produce a smeltable final product. The closed-loop water recycling system, incorporating a lamella thickener and process water tank, reduces fresh water make-up requirements by 85-95%, a critical advantage in regions with seasonal water scarcity or strict environmental discharge regulations. The entire plant is controlled through a centralized PLC system with HMI touchscreen interface, enabling single-operator supervision and remote monitoring via 4G cellular or satellite link for off-site technical support.

• Mercury-Free Complete Processing: The plant employs purely physical gravity separation methods throughout the entire circuit, ensuring full compliance with Colombia’s Law 1658 of 2013 and the Minamata Convention on Mercury. Zero chemical reagents are introduced at any processing stage, producing clean gold concentrate without environmental contamination risk.
• Rapid Deployment Architecture: All equipment is mounted on standard ISO shipping container skid frames with integrated lifting lugs and forklift pockets. Pre-fabricated inter-module piping with quick-connect flanges and pre-terminated electrical cables with industrial-grade waterproof connectors reduce site assembly to bolted connections only.
• Fine Gold Recovery Optimization: The centrifugal concentrators generate 60G force fields capable of capturing gold particles down to 200 mesh size that would be lost in conventional sluice box or jig-only circuits. Recovery rates of 90-98% have been verified across multiple alluvial operations in the Colombian Andes.
• Closed-Loop Water Recycling: The integrated lamella thickener and filtration system recovers 85-95% of process water for recirculation, minimizing fresh water intake and eliminating contaminated tailings discharge. This feature is particularly valuable for operations near ecologically sensitive Andean watersheds.
• Flexible Capacity Scaling: The modular architecture allows capacity expansion from 50TPH to 100TPH by adding parallel processing modules without requiring major civil works or extended shutdown periods. Individual modules can be operated independently during maintenance cycles.
• PLC Centralized Control: The industrial-grade PLC control system with 10-inch HMI touchscreen provides real-time monitoring of feed rate, slurry density, bowl rotation speed, fluidization pressure, and concentrate weight. Data logging capabilities support production reporting and process optimization analytics.

The MGBP modular plant is specifically engineered for alluvial and eluvial gold deposits in remote or infrastructure-limited regions. Primary target applications include small to medium-scale placer operations in Colombia’s Antioquia and Chocó departments, where mercury-free processing compliance is mandatory under Colombian environmental law. The plant also serves as an ideal solution for artisanal mining cooperatives transitioning from manual methods to mechanized production, providing a pathway to formalization with documented gold output and traceable environmental performance. Secondary applications include tailings retreatment projects recovering gold from historical alluvial workings, and exploration-stage bulk sampling programs requiring reliable mobile processing capacity. The modular design further supports contract mining operations where the plant can be relocated between project sites with minimal disassembly.

All plant modules undergo complete factory assembly and dry commissioning before disassembly for shipment. Each module is loaded into its designated shipping container with custom steel cradles and vibration-dampening mounts. Electrical panels are vacuum-sealed with desiccant packs for moisture protection, and all exposed machined surfaces receive VCI anti-corrosion coating. We provide comprehensive documentation including 3D installation layouts, piping and instrumentation diagrams (P&ID), electrical single-line drawings, and an operation and maintenance manual in both English and Spanish. Our engineering team delivers on-site installation supervision, operator training, and process commissioning support. A 12-month warranty covers all equipment and structural components from the date of successful commissioning.