Tin & Tungsten Gravity Processing Plant

Combined gravity and magnetic beneficiation lines recovering heavy tin and tungsten minerals without hazardous chemicals.

1. Process Overview & Flowchart Explanation

The Tin & Tungsten Gravity Processing Plant is engineered for cassiterite (tin oxide) and wolframite/scheelite (tungsten) ores. Because cassiterite and wolframite are friable and prone to over-grinding, crushing is conducted stagewise using a PE Series Jaw Crusher to liberate minerals without creating excessive ultra-fines.

The crushed ore is classified by screen sizes. Coarse fractions (2-10 mm) are treated in Mineral Jig Machines using sawtooth-wave water pulsation. Intermediate sizes (0.5-2 mm) pass down multi-turn Spiral Chute Concentrators. Fine sands (0.074-0.5 mm) are dressed on 6-S Shaking Tables. Finally, mixed heavy concentrates are processed through High Gradient Magnetic Separators (SLon Series) to cleanly separate magnetic wolframite from non-magnetic cassiterite.

2. Technical Advantages & Features

• Anti-Sliming Crushing Flowsheet: Multi-stage reduction and sizing preserve coarse mineral crystals and prevent sliming losses.
• High Density Difference Exploitation: Sawtooth jigs, spiral chutes, and shaking tables leverage high mineral specific gravities (SG 6.8-7.5) with zero chemical reagents.
• High-Intensity Magnetic Upgrading: High-gradient magnetic separators cleanly split tin and tungsten into two premium commercial concentrates.
• Cost-Effective Operation: Low electricity consumption and minimal wear part replacement costs compared to chemical leaching routes.