1.基本规格
model analysis
LT: Low Pressure stirring CIL tank
11.0×12.0: tank body diameter 11.0 meters, height 12.0 meters
CL: may represent material (such as Carbon Lined) or special design code
Effective volume: ≈1000-1200m³ (the actual volume needs to deduct the space occupied by the agitator)
Working pressure: normal pressure (slightly negative pressure design to prevent harmful gas escape)
2. Structure and material
Tank material: Main body: Q235B steel plate (thickness12-16mm)
Lining: acid-resistant rubber (58mm) or PP/PE plastic (for highly corrosive media)
Stirring system:
Type: mechanical stirring (top inclined paddle or axial flow)
Paddle material: 316L stainless steel or titanium alloy (selected according to the corrosiveness of the medium) Stirring power: 55-90kW (variable frequency speed regulation, speed 80-120r/min)
Heating system (optional):
Steam coil or electric heating (maintaining temperature 50-90℃, according to process requirements)
3.Process parameter
processing capability:
Slurry flow rate:200-400m³/h (solid content 20%-40%)
Residence time: 6-24 hours (designed according to leaching reaction kinetics)
Applicable media:
Acid leaching (pH 0.52.5, such as sulfuric acid leaching of copper, nickel-cobalt ore)
Alkaline leaching (pH1012, such as cyanide gold extraction)
4.Drive and control system
Main motor power: 75-110kW (explosion-proof design, protection level IP65)
Reducer:planetary gear reducer (transmission ratio 15:120:1)
Automation configuration: pH/ORP online monitoring
Temperature and liquid level interlock control
5.Equipment size and weight
Whole machine weight: 80-120 tons (including stirring system and lining)
Overall dimensions (diameter × height): 11m×12m (excluding auxiliary pipelines)
6.Special design (optional)
Gas collection system: negative pressure suction + alkali solution absorption tower (for HCN, SO2 etc.)
Wear resistance enhancement: lining alumina ceramic bricks (for high hardness slurry)
Standby stirring: dual drive system (to ensure continuous production)
要点
1. Corrosion protection:
When the chloride ion concentration is >5g/L, it is recommended to use titanium or Hastelloy alloy to regularly check the lining wear (thickness test at least once a year)
2. Process adaptability: High viscosity slurry requires increased stirring power (such as containing clay minerals)
Oxidation-reduction potential(ORP) control range needs to be confirmed with the process engineer
3. modular or energy-saving designs
典型应用场景
Gold mine: Cyanide leaching (NaCN Concentration 0.03%-0.1%)
Copper ore: secondary enrichment of heap leaching solution (H2SO4 concentration 10-50g/L)
Lithium ore:leaching after sulfate roasting (temperature 80℃) If more detailed material certification (such as rubber lining GB/T 18241 certification) or stirring flow field simulation report is required, please specify the specific process conditions.
