Spiral Washing Machine

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Product Details

Spiral Washing Machine (Spiral Classifier)

The Spiral Washing Machine (also known as Spiral Classifier) is a key equipment for Ore Washing, Desliming, and Classification. It utilizes the different sedimentation speeds of particles in liquid to separate fine slime from coarse sand.

Commonly paired with a Ball Mill in a closed circuit, it returns coarse sand for regrinding while overflowing fine pulp to the next stage. It is also perfect for washing silica sand and manganese ore.

Working Principle: Sedimentation & Agitation

Gravity separation in water: Heavy sand sinks, light slime floats.

Feeding & Sedimentation

Slurry enters the water tank. Coarse/heavy particles sink to the bottom quickly, while fine/light particles float in the water.

Spiral Agitation

The slowly rotating spiral blades stir the pulp, washing away mud from the sand surface and lifting the settled sand upwards.

Discharge & Overflow

Cleaned sand is discharged from the top discharge port (Sand Return). Muddy water overflows from the lower weir (Overflow).

Technical Choice: Spiral Classifier vs. Hydrocyclone

Both are classifiers, but they serve different process needs:

Feature	Spiral Classifier	Hydrocyclone
Mechanism	Gravity Sedimentation.	Centrifugal Force.
Separation Size	Coarser (0.15-0.8mm).	Finer (0.037-0.15mm).
Stability	Very Stable (Easy to control).	Sensitive to pressure fluctuations.
Function	Washing, Desliming, Transport.	Classification, Thickening.

Core Advantages

1. Effective Washing

The churning action of the spiral blades effectively scrubs clay from ore surfaces, making it ideal for upgrading low-grade Manganese and Iron ores.

2. Lifting Mechanism

Equipped with an automatic lifting device (motorized or manual) at the tail end. You can lift the spiral out of the sand bed during shutdown to prevent burying.

3. Durable Wear Parts

The spiral blades are covered with replaceable wear-resistant liners (Cast Iron or Rubber), ensuring a long service life and low maintenance cost.

Typical Applications

● Ball Mill Circuit:
Classifying ground ore in Gold Flotation Plant. Returns coarse sand to the mill.
● Silica Sand Washing:
Removing slime and impurities from silica sand for glass manufacturing.
● Ore Washing:
Desliming Manganese, Iron, and Phosphate ores to improve grade.
● Dewatering:
Preliminary dewatering of sand before the Dewatering Sieve.

Technical Parameters

Model	Spiral Dia. (mm)	Pool Length (mm)	Capacity (t/h)	Power (kW)
Single Spiral Series
FG-1000	1000	8400	30 - 60	5.5
FG-1200	1200	8400	50 - 80	7.5
FG-1500	1500	9400	80 - 120	11
Double Spiral Series (High Capacity)
2FG-1200	1200 x 2	8400	100 - 160	7.5 x 2
2FG-1500	1500 x 2	9400	160 - 240	11 x 2

Spiral Classifier Factory Stock

Frequently Asked Questions (FAQ)

Q: What is the difference between High Weir and Submerged type?

A: High Weir type (spirals partially submerged) is used for coarse particle classification (overflow > 0.15mm). Submerged type (spirals fully submerged at tail) is for fine particle classification (overflow < 0.15mm).

Q: Can I adjust the classification particle size?

A: Yes. You can control the overflow particle size by adjusting the Slurry Concentration (adding water), the Overflow Weir Height, and the Spiral Speed.

Q: Does it consume a lot of water?

A: It uses water for classification, but most of the water overflows with the slime. The discharged sand has relatively low moisture. The water can be recycled using a Thickener.

Efficient Sand Washing Solution

Get clean sand and precise ore classification with OreSolution Spiral Washing Machine.
Contact us for Single/Double spiral options and price.

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