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large capacity log washer
1. Product Introduction
The Large Capacity Log Washer is engineered for high-throughput, heavy-duty industrial mining and aggregate washing plants. Designed to process massive volumes of highly contaminated raw materials, this machine specializes in crushing and dissolving tough, insoluble plastic clays, mud balls, and cemented aggregates that standard sand washers cannot touch. Featuring massive dual counter-rotating steel shafts outfitted with high-strength, wear-resistant alloy paddles, it ensures maximized material cleanliness, optimized ore recovery rates, and reliable 24/7 continuous operation.
2. Applications
Built for large-scale operations requiring exceptional throughput and extreme durability:
Large-Scale Mining Plants: High-capacity processing of primary crushed ores, including iron ore, manganese, bauxite, copper, gold, and limestone (up to 200–500+ TPH).
Mega Quarry & Aggregate Operations: Cleans thousands of tons of heavily silted quarry rock, river gravel, and ballast stone to meet strict international construction standards.
Large Mineral Processing Hubs: Acts as critical pre-treatment equipment before downstream crushing, milling, optical sorting, or flotation processing.
3. Working Principle
The large capacity log washer utilizes a highly reinforced, inclined washing trough (angled at 6° to 12°) paired with intense mechanical force to execute rigorous material-on-material scrubbing.
High-Volume Feeding: Massive volumes of clay-bound material enter from the lower end (Feeding Material). Simultaneously, high-pressure water is injected through bottom inlets or top spray bars.
Aggressive Double-Shaft Attrition: Dual massive steel shafts lined with alternating, overlapping alloy paddles (Spirals) rotate counter-directionally. The sheer force of these heavy-duty blades cuts and shears through the thickest clay rings. The rocks are repeatedly thrown against each other, creating extreme material-on-material attrition that strips away tough matrix skins.
Counter-Current Separation: The clean, heavy ore is pushed upward along the inclined bed and discharges continuously at the top (Returned material / Clean aggregate discharge). The dissolved mud, clay, and lightweight contaminants mix into an unstable slurry and flow downward, overflowing via the lower weir (Overflow material).
4. Key Advantages
Massive Production Output: Specifically engineered to handle huge tonnages, ranging from 150 to over 500 TPH (Tons Per Hour), easily matching high-output crushing circuits.
Ultra-Heavy Duty Engineering: Built with extra-thick steel plates, reinforced tub framing, and oversized, solid forged-steel shafts designed to withstand massive shock loads and continuous impact.
Premium Manganese/Chrome Wear Parts: The replaceable, bolt-on paddles are cast from premium manganese steel or ultra-high chromium alloys, dramatically extending service life and cutting maintenance downtime.
Advanced High-Torque Drive Systems: Equipped with heavy-duty industrial gearboxes, flexible couplings, and high-horsepower electric motors that enable trouble-free starting under full-load or jammed conditions.
Superior Cleaning Performance: The combination of an elongated tub, adjustable incline, and variable-speed drives allows operators to perfectly optimize retention time for complete clay elimination.
5. Case Studies and Images
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