About our Polyurethane Cyclones
Dewatering Cyclones from TRITHANE are ideal for dewatering applications in all mineral processing focused on water recovery and slurry densification. Various sizes of dewatering/ separation cyclones are available and determined by main defining process.
- The underflow/ SPIGOT slurry density required
- The required solids yield to the underflow
- The overflow particle size distribution
- The required overflow/ VORTEX solids concentration
- The feed particle size distribution
For slurry dewatering or water recovery (i.e. high solids yield to the underflow), small diameter dewatering cyclones that can achieve a fine cut-point are generally recommended. A higher feed pressure can also be accommodated in small diameter dewatering cyclones, which assists in achieving a fine cut-point.
Cyclones offered vary in size and include solid polyurethane cyclones as well as polyurethane lined steel cyclones (reconditioning option) of sizes from <100mm,100mm, 165mm, 250mm and 350mm where 250mm Cyclones also offered in polyurethane lined steel cyclones.
TRITHANE offer very small diameter polyurethane dewatering cyclones from 100 mm ID and 165 mm ID available for use individually or as a cluster of cyclones installed onto cyclone distributors with discharge tanks.
Larger diameter dewatering cyclones may be used in processes where the feed to the cyclone does not contain a high fraction of ultra-fines and/or where solids losses to the overflow are acceptable. These applications range from plant processing to tailings dams where solids are discharged from the exit spigot outflow into thickeners or tailings storage facilities.
Dewatering cyclones are applicable to these processes where water or low density recovery is essential.
The correct dewatering cyclone for the process is dependent on the particle size distribution of the material being treated and your specific cyclone cut-point. These are determined by the cyclone size as well as the overflow or vortex inner diameter and the exit or underflow determined by the spigot inner diameter.
The most important design aspects of a dewatering cyclone is the diameter of the vortex finder and the spigot. The diameter of the dewatering cyclone will ensure that the correct cut-point is achieved, whereas the correct spigot will ensure the correct underflow slurry density is achieved and the vortex finder diameter the overflow and water clarity achieved.
Features of the dewatering cyclones include:
- Designed Inlet/feed head for maximum vortex creation
- Minimised wear in abrasive applications using high quality polyurethane ethers and or reinforcing with a steel exterior
- Long life vortex finder cast in abrasion and water resistant polyurethane polyether
- Very fine cut-points for dewatering purposes by client specific needs and diameters of both vortex finders and spigots
- Suitable for high-pressure applications from 1.7 to 3.5 bar.
All components of the cyclones are easily exchangeable with replacement spares. TRITHANE also offer a unique cone extension to customer specification or defined built in spigot, whereby spigots are seldom discharged and replacement of the cone extension and spigot as a single unit further assists in the installation reducing both the effort and down time.