| System Mix-Feed Packages | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Flocculant | Chemical | Reagent | Pump Skids | Lime | Hose Pumps | Tube Dosing Pumps | Mixers/Aerators | LTM probes | ||
| Thickening Thickeners | X | X | X | X | ||||||
| flocculation | thickener underflows, chemicals/flocculants | thickener underflow | feed coagulant | |||||||
| Clarification | X | X | X | X | X | X | ||||
| flocculation | Caustic pH adjustment, metal precipitants | Chemical feeding, slurry transfer | clarifier underflow | feed coagulant, chemicals | flocculation tank, water holding tanks | |||||
| Flotation | X | X | X | X | X | X | X | |||
| modifiers (zinc and copper sulfate, CN, starch, MBS, etc.) | xanthate, depressants | often banks of dosing pumps controlled via DCS | pH control, flotation modification | froth pumping | collector and chemical dosing | flotation cell level monitoring | ||||
| General pumping | X | X | X | |||||||
| froths, thickener underflow | pump sump level control | |||||||||
| OSA (on line stream analyzers) | X | |||||||||
| slurry pumping to xray analyzer, return | ||||||||||
| Autoclave-CIP, CIL | X | X | X | X | X | |||||
| lime, chemical, slurry pumping | pH adjustment (large!) | slurry transfer | chemical dosing | autoclave mixers, slurry tank mixers | ||||||
| CIP, CIL Leaching | X | X | X | X | X | X | ||||
| CN, NaOH | chemical feeding, carbon transfer | pH control | chemical feeding, carbon transfer | chemical dosing (antiscalants, etc) | leach tank (can be VERY BIG!) | |||||
| SX-EW | X | X | X | X | X | |||||
| starch mixing, cobalt sales, etc. | feeding lixiviant and diluent | potential crud removal from settlers | dosing various chemicals | for mixing leach solution with extractant | ||||||
| Merril Crowe | X | X | X | X | ||||||
| feeding diatomaceous earth (DE) slurry, zinc slurry | pH control, metals precipitation | feeding diatomaceous earth slurry, zinc slurry | slurry tanks such as DE slurry mixing | |||||||
| Water Treatment (boilers, cooling towers, etc) | X | X | X | X | X | X | ||||
| general purpose pumping, controls | pH control, metals precipitation | volume pumping, needing good control, solids | chemical dosing | tanks | ||||||
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