Desanders, SD-HPD series
SD/HPD Series - DOUBLE PASSAGE
- EASY ASSEMBLY
- REDUCED MAINTENANCE
- HIGH RELIABILITY
- 3 MODELS
Description and application
S.A.I.C.I. produces a double-passage desander series designed specifically to treat the bentonite mud used in drilling and excavation. Compared with the SD series desanders, which separate down to 40–50 microns, the double passage takes the cut point down to d50 = 30 microns. The mud is treated and washed by separating out the solid contaminants: fine sand, clay, silt and organic matter.
The first stage — roughing — takes place on the steel screen, which separates out anything over 8 mm. The mud is then drawn by the pump to the larger-diameter hydrocyclones, where every particle over 50 microns is separated.
From there a second pump sends it to a set of smaller-diameter cyclones for the second stage. A double-passage desander separates down to a cut point of d50 = 30 microns. The machine can be modified in order to work also with one passage as a standard desander.
| SD2500 HPD | SD4000 HPD | SD5000 HPD | |
|---|---|---|---|
| Output [m³/h] | 150/200 | 250/300 | 400/450 |
| Cut Point d50 [μm] | 30 | 30 | 30 |
| Installed Power [Kw] | NA | NA | NA |
| Tank Capacity [m³] | NA | NA | NA |
| Main Screen [m²] | NA | NA | NA |
| Secondary Screen [m²] | NA | NA | NA |
| Hydrocyclone | NA | NA | NA |
| Length [m] | NA | NA | NA |
| Width [m] | NA | NA | NA |
| Height [m] | NA | NA | NA |
| Weight [Kg] | NA | NA | NA |
Diagram of the two step desander
