Outline
The ADPEC is a linear vacuum belt filter. It has deep, trough shaped, vacuum trays ①. These trays form the support for the filter cloth ②, which is in the form of an endless belt.
The belt moves thorough the filter in short steps during which period the vacuum is momentarily switched off.
To do this vacuum valve ④ is closed, vent valve ④ is opened and the discharge roller ⑤moves forward drawing the cloth with it. In the outboard position the valves reverse thus reapplying vacuum and the discharge roller retracts slowly discharging the cake.
The vacuum trays are deep troughs in which the cloth lies and cakes up to 120 mm thick can be accommodated without risk of spillage.
The non-return roller ⑥ locks the return cloth. The length of cloth which is being displaced, comes from the tensioning system, and floating roller ⑧ is moved (Ⅰ) to (Ⅱ). As soon as the discharge roller is free, and the floating roller moves from position (Ⅲ) to (Ⅳ).
The filter cloth is being washed in a washing box, flat jet sprays wash the cloth from either face or back.
The cloth tracking consisting of two opposing sets of pinch rollers ⑪ keep the filter cloth on an exact course.
- ADVANTAGES
-
- Total process control – see section Process Features
- Fewer moving parts than other filters.
- Simple controls with total integrity
- Easy and low cost maintenance
- Low spares consumption
- Lightly tensioned cloth - low cost
- Low floor loadings – low structural cost
- Modular construction – easy to install can be extended at a later stage
FILTER STANDARD DIMENSIONS（2.0 m Wide）
| Filter Area(m2) | Effective Length(mm) | Static Weight(kg) | Operation Weight(kg) |
|---|---|---|---|
| 8.0 | 4,000 | 6,100 | 7,100 |
| 10.0 | 5,000 | 6,650 | 7,750 |
| 12.0 | 6,000 | 7,200 | 8,400 |
| 14.0 | 7,000 | 7,750 | 9,050 |
| 16.0 | 8,000 | 8,300 | 9,700 |
| 18.0 | 9,000 | 8,850 | 10,350 |
| 20.0 | 10,000 | 9,400 | 11,000 |
| 22.0 | 11,000 | 9,950 | 11,650 |
| 24.0 | 12,000 | 10,500 | 12,300 |
| 30.0 | 15,000 | 13,000 | 15,400 |
