A Screw Sand Washing Machine is a type of equipment used to wash, classify, and dewater sand and other granular materials in industries like mining, pembinaan, dan kuari. It utilizes a screw mechanism to lift and clean the material while removing impurities.

Ciri -ciri utama & Working Principle:
1. Struktur:
- Consists of a rotating screw (auger) inside a trough or tub.
- Water inlet for washing and an overflow weir for removing impurities.

2. Working Process:
- The screw rotates, lifting sand from the bottom of the tank.
- As the sand moves upward, it is washed by water jets or immersion.
- Impurities (tanah liat, habuk, bahan organik) are flushed out through the overflow weir.
- Clean sand is discharged at the top after dewatering.

3. Kelebihan:
- Efficient cleaning & high recovery rate (95%+).
- Low water consumption compared to bucket-wheel washers.
- Simple structure with minimal maintenance needs.
- Handles fine and coarse sand effectively.

4. Aplikasi:
- Washing natural sand or crushed sand for construction (konkrit, mortar).
- R

ving silt/clay from aggregates in quarries.
- Pemprosesan mineral (mis., bijih besi, pasir silika).

Types of Screw Sand Washers:
- Single Screw Washer: One spiral for small-scale operations.
- Double Screw Washer: Two parallel screws for higher capacity.

Comparison with Other Sand Washers:
| Ciri | Screw Washer | Bucket Wheel Washer | Log Washer |
||-|||
| Water Usage | rendah | High | Sederhana |
| Fines Loss | Minimal | Lebih tinggi | Sederhana |
| Kapasiti | Medium | High | High |
| Penyelenggaraan | rendah | Sederhana | High |

Pertimbangan pemilihan:
- Jenis Bahan (saiz, kandungan tanah liat).
- Required Output (tan/jam).
- Water Availability & Recycling System.

Would you like details on installation, penyelenggaraan, or specific models?