Gold Leaching Tank (Agitation Tank) Specifications
The figures below describe typical industry specifications for this class of equipment rather than a single fixed model. Use them to scope a requirement, then confirm exact figures against the supplied unit before purchase.
| Specification | Typical value |
|---|---|
| Working volume per tank | 10–200 m³ for small plants |
| Tank diameter × height | About 3×3.5 m to 7×7.5 m |
| Tanks per train | 5–8 in series |
| Agitator power | 3–30 kW, per tank size and slurry density |
| Impeller | Hydrofoil or pitched blade, rubber lined or hardened |
| Slurry density | 40–50% solids by mass |
| Construction | Carbon steel, epoxy or rubber lined; bolted or welded |
| Interstage screen | Mechanical swept or airlift, 0.6–0.8 mm aperture |
| Aeration | Air or oxygen sparged, 6–10 ppm dissolved oxygen |
| Flow between tanks | Gravity overflow via launders, 200–400 mm step per tank |
| Power supply | 400 V 3-phase 50 Hz |
| Transport | Bolted panel tanks ship flat in containers |
What a Gold Leaching Tank (Agitation Tank) Is Used For
- Carbon-in-leach and carbon-in-pulp gold circuits
- Regrinding and leaching old amalgamation tailings
- Upgrading a vat leach site to agitated leaching
- Cyanide detoxification tanks at the end of the circuit
Maintenance Schedule
Most premature failures in this equipment class trace back to a missed routine check rather than a design fault. The intervals below are a practical starting schedule; adjust them to your duty cycle and the manufacturer manual.
| Interval | Task |
|---|---|
| Every shift | Confirm every agitator is running and slurry is fully suspended; check interstage screens are flowing and not overflowing carbon. |
| Weekly | Clean or rotate interstage screens; check gearbox oil and agitator noise and vibration; inspect launders for sanding. |
| Monthly | Inspect impeller wear and shaft alignment; check lining at the slurry line and tank bottom where accessible. |
| Quarterly | Inspect air sparging lines and valves; survey tank walls and floor for corrosion or leaks. |
| Annually | Drain and inspect internals; repair lining and replace impellers and screen mesh as needed. |
Frequently Asked Questions
What size leaching tank do I need?
Tank volume comes from your daily tonnage, slurry density and the residence time your ore needs, then split across the number of tanks. As an illustration, a 50 tonne per day plant at 45% solids and 24 hours residence needs roughly 90–100 m³ of total working volume, for example six tanks of about 17–20 m³. Leach test work on your ore sets the residence time.
What happens if the agitator stops?
The solids settle to the tank floor within minutes and can pack hard enough that the agitator cannot restart under load. Plants need standby power or a restart procedure, and tanks should not sit settled for long. This is one reason generator sizing matters on off-grid sites.
Should tanks be bolted or welded?
For remote Tanzanian sites, bolted panel tanks are often the better choice because they ship flat in containers and are assembled on site. Welded tanks need fabrication on site or oversized road transport. Both work if the lining and sealing are done properly.
Can I use leaching tanks with an existing vat leach site?
Yes. Operators commonly add a regrind mill and a short tank train to treat material that vats leach poorly. The fine gold locked in particles only dissolves after grinding, which is why agitated leaching often recovers gold that vats leave behind.
Supply and Delivery Across Tanzania
Bart Mining supplies gold leaching tank (agitation tank) and related equipment to mining operations throughout Tanzania, with primary coverage of the Lake Victoria Goldfields (Mwanza, Kahama, Geita, Shinyanga and Bukombe), alongside the Lupa Goldfields around Chunya and Mbeya, and delivery nationwide from Dar es Salaam.
Commonly supplied to: Chunya, Mpanda.
Request a quotation
Need a gold leaching tank (agitation tank) specified for your site?
Tell us your duty, depth or throughput and available power supply. We will come back with a specification and price, and flag anything on site that needs to change to make it work.