SX7 and MX7 Coal Spiral Concentrators
Multotec has designed and optimised the double stage MX7 coal spiral concentrators to process feed with a size range of 2.0 mm to 0.1 mm for difficult-to-wash coal. The 2-stage spirals, the SX7 and MX7, incorporate two stages of spiralling into a single spiral assembly, reducing plant height and floor space requirements – ultimately reducing capital and operating costs.
These coal spiral concentrators are constructed with materials that ensure a high quality product with a longer life, lower maintenance requirements and reduced costs. To add flexibility when building or replacing the spiral plant, it has a compact modular design.
SX7 and MX7 Coal Spiral Concentrator benefits:
- Two different basic models and two different combinations to suit the coal quality
- Assemblies supplied in twin or triple starts, 7 turns high, or low feed ash profiles
- Compact modular design adds to flexibility
- Construction material used gives a long product life, low cost and low maintenance
Get in touch with your local Multotec branch about your mineral processing requirements.Learn more
Housing Frame
- Each module houses 2 spiral assemblies
- Modular and custom-designed
- Dismantles entirely for retrofitting
- Optional features include safety handrails, cat ladder hoops and kick-plates
Feed Box
- Solid polyurethane casting
- Impact wall provides longer life
- Design ensures homogenous pulp mix
- Replaceable
Auto Reject Channel® (MX7)
- Improved removal of high density particles without the aid of auxiliary splitters
- Improved removal of misplaced material
- High reject capacity
- Less sensitive to beaching of coarse particles
Distributor and Piping
- Robust, galvanised steel shell
- Cast polyurethane lining
- Replaceable parallel throat orifice
- Anti-syphoning off-takes
- Rigid H.D.P.E. piping
- Modular polyurethane elbows
- Top or bottom fed
Enhance your mineral processing operation with our gravity concentration solutions.
Repulper
- Solid polyurethane casting
- Integral auxiliary splitter
- Forced rejection of discard to reject gully or centre column
- Homogeneous mixing of middlings and product for reintroduction onto trough
- Divides spiral into two stages
Spiral Trough
- Accurately manufactured by reverse lamination
- Working surface is sprayed with polyurethane to a thickness of (3mm +/-0.5mm) or as requested
- Improves circumferential strength
- Prevents spillage
- Integrally moulded
- Ribbed for extra strength
Product Box and Splitters
- Solid polyurethane casting
- Splitter calibration
- Box design assures no solids build up
- Linked steel reinforced splitters
Multotec provides additional services with regards to its coal spiral concentrators, including test work on spiral concentrators at their R&D facility or on coal plant sites, consultation and commissioning of equipment, as well as optimisation of spiral plants.