GSZ is the manufacturer of extensive range of spiral with special beatification.spiral concentrators are a gravity based concentrating device that separates light density granular and sandy (10 mesh to 200 mesh (2 mm to 0.075 mm) consistency material from heavier density material.
Brief Introduction
spiral concentrators are a gravity based concentrating device that separates light density granular and sandy (10 mesh to 200 mesh (2 mm to 0.075 mm) consistency material from heavier density material. In order to have a good separation, there should be a difference in SG's of at least 1.0. One main benefit of spiral concentrators is they have no moving parts. The feed range, in percent solids, to a spiral ranges from 20% solids up to 40% solids. Depending upon the material characteristics, a maximum efficiency will usually be reached somewhere in this range. All that is required are some slurry pumps, the slurry to be separated and the banks of spirals with a feed distributor.
Slurry is pumped to the top of the spiral (typically 13' to 15' from the floor), and it enters a feed distributor that evenly distributes the feed to each spiral concentrator. The design and shape of the spiral make it work, when combined with gravitational acceleration. As the slurry travels the spiraling path down the spiral, mineral grains settle and start sorting according to size, density and to a lesser extend shape. Low density particles are carried with the bulk of the water towards the outside of the spiral (perimeter), while particles with the greatest density migrate towards the inside of the spiral
Features
- Replaceable modular cast polyurethane feed box for positive feedline connection and longer spiral service life
- Splitter configuration designed for each application
- Concentrate diverter to obtain the highest concentrate product grade
- Repulping devices to further enhance recovery and grade of product
- Cast polyurethane product collector box ensuring long life and nonsplash collection
- Integrated engaged launder system
- Accurate top or bottom entry feed distribution systems for improved recoveries
- Simplicity of process circuits for reduced capital cost
- Available with or without washwater
Benefits
- Spiral configurations in single, twin, triple and quad troughs per column to suit capacity requirements
- Spiral banks up to 48 starts to maximise capacity and minimise floor space requirements
- Low capital cost installations
- Minimal maintenance requirements
- Low operation cost and long operating life
- Consistent separation efficiency with minimal operator attention
- Comprehensive process engineering support
Applications
- Rutile, ilmenite and zircon concentration
- Iron ore, chromite and manganese beneficiation
- Tin, Tantalum and tungsten ore concentration
- Gold, native copper and base metal recovery
- Silica sands processing and pumice sand separation
- Titano-magnetite concentration
- Garnet, kyanite, sillimanite and andalusite recovery.
