螺旋分级机

Based on the number of screw shafts, the spiral classifier can be divided into two classes: single and double screw. The spiral classifier can be divided into high weir, low weir, and immersed-type spiral classifiers based on the height of the overflow weir. The high weir is suitable for coarse grain classification with some depressed area, and is capable of obtaining granularity over 100 mesh. The low weir: The desliming area is small, and overflow capability is low. Usually used for washing sand and desliming. The immersed-type spiral classifier is suitable for fine granule classification capable of obtaining overflow granularity less than 100 screens due to the great depressed area and depth.
  • Motor Power: 2.2-55×2 kw
  • Capacity(Overflow): 10-2650t/h
  • Suitable for: Primarily medium-hard to high-hardness materials such as granite, basalt, limestone, river pebbles, manufactured sand, quartz sand, tailings, and concrete aggregates.
  • Wide Material Adaptability
  • Powerful Cleaning Capacity
  • Excellent Washing Performance
  • Ldeal for Large-scale Production

We Always Focus On Optimizing The User Experience Of Our Products

 

1. Wide Material Adaptability

Suitable for cleaning and grading coarse, medium, and fine granular materials.

2. Powerful Cleaning Capacity

Efficiently wash away mud and impurities from sand and gravel.

3. Excellent Washing Performance

Deliver clean finished materials with reliable separation effect.

4. Ideal for Large-scale Production

Stable performance perfectly fits heavy-duty sand processing lines.

Working Principle

 

The spiral sand washing machine is driven by a motor, with the impeller rotating slowly via a V-belt and a reducer. Materials (such as sand, gravel, and ore) enter the washing tank from the feed chute and are tumbled and agitated by the impeller to remove impurities from their surface.

  • The material is tumbled and agitated within the washing tank by the impeller.
  • During this process, collisions and friction occur between the materials and between the materials and the impeller and casing, which helps remove impurities such as mud and stone powder from the material’s surface.
  • Lighter impurities and foreign objects are carried away by the water flow and discharged from the drain outlet of the washing tank.

Product Structure

 

Rotary Spiral Shaft: The rotating shaft is the core component of the coarse aggregate washer. Its inlet end is equipped with blades for scrubbing; the rest of the shaft is conveyed to the outlet by a screw conveyor. Increasing the number of blades on the shaft improves the scrubbing effect; however, increasing the number of blades reduces the throughput.

Washing Tank: The washing tank holds the aggregate to be processed. The rotating shaft is installed inside the tank, where the aggregate is scrubbed and cleaned.

Upflow Classifier: The upflow classifier within the washing tank of the coarse aggregate washer helps optimize machine performance. The upflow helps to remove unwanted lightweight materials such as branches, sticks, and coal lumps with the wastewater.

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Technical Parameters

 

High Weir Single Spiral Classifier

Model Capacity (t/h)
Return Sand
Capacity (t/h)
Overflow
Spiral Diameter
(mm)
Spiral Length
(mm)
Slope (°) Motor Power (kW)
FG-300 30-80 10-30 300 3900 14-18 2.2
FG-500 145-260 21-75 500 4390 14-18 2.2
FG-750 255-564 65-154 750 5500 14-18 3
FG-1000 473-1026 85 1000 6500 14-18 5.5
FG-1200 1165-1630 150 1200 6500 14-18 5.5
FG-1500 1140-2730 235 1500 8265 14-18 7.5
FG-2000 3240-5940 400 2000 8700 14-18 11
FG-2400 6800 580 2400 9130 14-18 20
FG-3000 11625 890 3000 14300 14-18 30

 

High Weir Double Spiral Classifier

Model Capacity (t/h)
Return Sand
Capacity (t/h)
Overflow
Spiral Diameter
(mm)
Spiral Length
(mm)
Slope (°) Motor Power (kW)
2FG-1200 2340-3200 310 1200 6500 14-18 55×2
2FG-1500 2240-5360 460 1500 8230 14-18 7.5×2
2FG-2000 7780-11880 800 2000 8400 14-18 15×2
2FG-2400 13600 1160 2400 9136 14-18 30
2FG-3000 23300 1785 3000 12500 14-18 45
2FG-3800 36000 2650 3800 14300 16-18, 3 37×2

 

Submerged Single Spiral Classifier

Model Capacity (t/h)
Return Sand
Capacity (t/h)
Overflow
Spiral Diameter
(mm)
Spiral Length
(mm)
Slope (°) Motor Power (kW)
FC-1000 160-700 50-260 1000 6500 14-18 5.5
FC-1200 1150-1640 120 1200 8400 14-18 7.5
FC-1500 1140-2740 185 1500 10500 14-18 7.5
FC-2000 3890-5940 400 2000 13000 14-18 11
FC-2000 3890-5940 400 2000 13000 14-18 15
FC-2400 6800 455 2400 14130 14-18 18.5
FC-3000 11650 705 3000 14300 14-18 30

 

Submerged Double Spiral Classifier

Model Capacity (t/h)
Return Sand
Capacity (t/h)
Overflow
Spiral Diameter
(mm)
Spiral Length
(mm)
Slope (°) Motor Power (kW)
2FC-1200 1770-2800 240 1200 8400 14-18 7.5×2
2FC-1500 2240-5360 370 1500 10500 14-18 7.5×2
2FC-2000 7780-11880 640 2000 12900 14-18 2×11
2FC-2000 7780-11880 640 2000 12900 14-18 22
2FC-2400 13700 910 2400 14130 14-18 37
2FC-3000 23300 1410 3000 14300 14-18 45

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