Sulphur Filter

Filtration of molten sulphur
basic filter design:
1. dry cake discharge (preferred)
a. vertical tank with bottom opening head, minimum floor space, low first costs, leaves not fully exposed for cleaning
b. horizontal tank with retractable carriage, easier to clean (leaves fully exposed) more floor space, somewhat higher in costs in sqm of area than vertical tank.
2. slurried cake discharge
cake reslurried in sulphur results in high sulphur load with cake or necessitates recycle to melting pit which must than be cleaned more frequently (vertical tank) filter recommended with vibrator.
3. filter tank
a. carbon steel (5 bar)
b. steam jacket (5 bar)
c. jacketed connections (flanged)
d. silicone or viton gaskets
4. leaves
a. 24x110 mesh plain dutch weave in ss316
b. drainage screen and balance of leaf in carbon steel or ss304
c. “o” ring gaskets in viton
d. 45” leaf spacing.
5. accessories
a. jacketed carbon steel precoat tank (volume equal to 1,3 times the volume of the filter tank)
b. jacketed interconnecting pipe, valves and fittings
c. jacketed submerged pumps for precoating and feed.