Spiral Chute

Spiral Chute

Diameter:0.4-1.5(m)

Feeding Size:0.3-0.02(mm)

Feeding Concentration:20-50(%)

Capacity:0.15-8(t/h)

Features and technology advantages of Spiral Chute

Introduction of Spiral Chute

The spiral chute is a gravity separation equipment that uses the inertial centrifugal force generated by the slurry in the spiral rotation movement to realize the separation of light and heavy minerals. It is applicable to the separation of iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphorite, tungsten ore, tin ore, tantalum ore, niobium ore and other non-ferrous metal, rare metal and non-metallic mineral bodies with specific gravity differences of 0.3 to 0.02 mm.


Structure Features of Spiral Chute
1. Glass-reinforced plastic spiral chute dressing is composed of glass-reinforced plastic spiral blades. According to different processing capacity, the screw set can be made into different layers, that is, single head, double head, three head and four head structure.
2. The cross section of the spiral chute is a cubic parabola, which can improve its performance. The variation of curve operation is especially suitable for the selection of fine grain materials.
3. The spiral chute is simple in structure and usage, which also has anti-corrosion function. In use, it is not easy to be corroded by minerals. The equipment also has the advantage of strong adaptability, which can adjust the fluctuation of mineral quantity and concentration.
4. The spiral chute of FRP has strong practicability, which can realize a large number of ore separation at one time. Its work efficiency is high, and  can adapt to different requirements of environment. In use, it will not produce any noise, nor any power can achieve normal operation. FRP spiral chute can not only be used in mineral processing industry and mining industry, but also in sand mining industry such as riverside and seashore.

Advantages of Spiral Chute
1. Small footprint and large processing capacity. The structure is reasonable, the installation is simple, the floor space is small, the operation is simple, the ore dressing is stable, the mine is clear, the treatment volume is large, the efficiency is high, the ore dressing enrichment ratio is high, the recovery rate is high, and the operation is reliable.
2. Light weight and no noise. It is light in weight, moisture-proof, rust-proof and corrosion-resistant. It has strong adaptability to fluctuations in the amount of ore and concentration, grain size and grade, and has no noise.
3. Easy to operate and adaptable. The spiral chute is not critical to the operation requirements (such as the ore size, mass fraction, etc.), even if the ore supply, ore concentration, ore size and ore grade change, there is almost no influence on the selection index, and it has strong adaptability.
4. The treatment effect is good. The spiral chute is not only easy to operate, but also achieves a good treatment effect. It is characterized by stable ore dressing, clear ore separation, large processing capacity, high efficiency, and high enrichment ratio.

Working principle of Spiral Chute

The ore slurry naturally swirls from high to low, producing an inertial centrifugal force in the rotating slope flow rate. According to the difference in the specific gravity, particle size and shape of the ore sand, the ore and sand are separated by the gravity and centrifugal force of the swirling flow. The concentrate flows into the concentrate bucket and is connected with the pipe, and the tailings flow into the tailings bucket and connected with the sand tank through the pipe, and then discharged by the sand pump, completing the whole process of beneficiation.

Product Data

Technical Data of Spiral Chute:

Model Outer diameter of screw (mm) Screw pitch (mm) Pitch diameter ratio (pitch/diameter) Lateral inclination (°) Number of installed screw heads Feed size (mm) Feed concentration (%) Production capacity (t/h) Dimension Weight (kg)
BLL-2000 2000 1200 0.6 3 2.00~0.04 30~55 7~10 2120x2120x5600 900
BLL-1500 1500 900, 675 0.48, 0.36 4 0.8~0.037 30 ~55 6~8 1600x1600x5300 850/800
BLL-1200 1200 900, 720, 540 0.75, 0.6, 0.45 4 0.3~0.03 25 ~55 4~6 1360x1360x5230 700/650/600
BLL-900 900 675, 540, 405 0.75, 0.6, 0.45 4 0.3~0.03 25 ~55 2~3 1060x1060x4000 450/400/350
BLL-600 600 450, 360, 270 0.75, 0.6, 0.45 2 0.2~0.02 25 ~55 0.8~1.2 700x700x2600 120/100/80
BLL-400 400 240, 180 0.6, 0.45 2 0.2~0.02 25 ~55 0.15~0.2 460x460x1500 50