Hydrowash - SWE Series
The Nesans SWE Series Hydrowash is a dual-stage sand washing system designed to deliver superior cleanliness and precise fines control in a single, integrated setup. Combining a bucket classifier for coarse material and a hydrocyclone system for fines recovery, the SWE Series offers a balanced solution that effectively handles a wide range of feed gradations and contamination levels.
In the first stage, coarse sand is separated and thoroughly washed in the bucket classifier, where unwanted silts and clays are removed through agitation and overflow. The fine particles along with the wash water are then transferred to the second stage—a hydrocyclone unit that efficiently recovers usable fines and reduces waste, ensuring minimal material loss.
Ideal for producers targeting high-quality plaster and concrete sand, the SWE Series provides clean, well-graded output with improved control over silt content. Its two-stage design not only enhances washing performance but also optimizes water usage and plant efficiency, making it a dependable choice for operations requiring consistent, spec-grade sand.
Applications:
How It Works
The Nesans SWE Series Hydrowash utilizes a two-stage washing process to maximize sand cleanliness and fines recovery. In the first stage, raw feed material is directed into a bucket classifier, where coarse sand particles are separated from the slurry. The buckets scoop up the heavier sand, allowing water and finer particles to overflow through a weir. As the buckets rotate, the coarse sand is gently washed and dewatered before being discharged.
The overflow slurry, which contains suspended fines and silts, is then transferred to the second stage—a hydrocyclone system. Here, the slurry is pumped at high pressure into the cyclone, where centrifugal forces separate the fine sand from ultra-fines and clay. The recovered fines exit through the cyclone underflow and are sent to a dewatering screen, while the overflow, containing impurities, is directed to a settling area or water treatment circuit.
This dual-action setup ensures both efficient coarse sand cleaning and precise fine material classification, resulting in a high-quality, low-moisture sand product with minimal loss and optimal resource usage.
Features and Advantages
Specifications
| Model No. | Rotor Speed (rpm) | Pump Power (kW) | Max Feed Size (mm) | Drive Motor Power (kW) | Dewatering Screen Power (kW) | No of Cyclones (Nos) | Water Requirement (L/day) | Capacity (mtph) |
|---|---|---|---|---|---|---|---|---|
| SWE750 - DUO | 3.6 | 10 | -5 | 3.75 | 2 x 1.5 | 1 | 15000 | 35 - 50 |
| SWE1000 - DUO | 3.6 | 15 | -5 | 5.625 | 2 X 2.2 | 1 | 20000 | 75 - 90 |
| SWE1500 - DUO | 3.6 | 30 | -5 | 7.5 | 2 X 3.7 | 2 | 25000 | 100 - 120 |
| SWE2000 - DUO | 3.2 | 40 | -5 | 11.25 | 2 X 5.5 | 2 | 30000 | 130 - 150 |
| SWE2500 - DUO | 3.2 | 45 | -5 | 15 | 2 X 5.5 | 2 | 35000 | 170 - 190 |
| Model No. | Rotor Speed (rpm) | Pump Power (hp) | Max Feed Size (in) | Drive Motor Power (HP) | Dewatering Screen Power (hp) | No of Cyclones (Nos) | Water Requirement (gal/day) | Capacity (stph) |
|---|---|---|---|---|---|---|---|---|
| SWE750 - DUO | 3.6 | 15 | -1/4 | 5 | 2 x 2 | 1 | 4000 | 33 - 61 |
| SWE1000 - DUO | 3.6 | 20 | -1/4 | 7.5 | 2 X 3 | 1 | 5000 | 83 - 99 |
| SWE1500 - DUO | 3.6 | 40 | -1/4 | 10 | 2 X 5 | 2 | 7000 | 110 - 132 |
| SWE2000 - DUO | 3.2 | 50 | -1/4 | 15 | 2 X 7.5 | 2 | 8000 | 143 - 165 |
| SWE2500 - DUO | 3.2 | 60 | -1/4 | 20 | 2 X 7.5 | 2 | 10000 | 187 - 209 |
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