Handling of Microsilica Slurry - Elkem

® ®Elkem Microsilica slurry: EMSAC 500SEMSAC 500S is a multi-benefit, superpozzolanic mineral additive for fibre cement basedmaterials.Elkem Microsilica originates from the production of silicon metal and ferro-silicon alloys.The material consists of amorphous, sub-micron, spherical particles and, in the original3state, has a ”fluffy” appearance with bulk density below 300 kg/m .To facilitate handling and dosing, the powder is further processed with water to produce astable slurry. The process is continuously monitored and controlled before shipment tostorage and distribution depots or customers.3EMSAC 500S, has a density of approx. 1400kg/m and 50% solids content by weight.Gooseneck for ventilation on silo top,min. ND 100.Arrangement for inspection and maintenanceof silo interior.Steel, plastic or rubber pipe, min. ND 100(plastic or rubber preferred due to corrosion).Filling pipe; easy to dismount for cleaning.Minimum pipe diameter100 mm (ND 100).JCirculationLevel switches formax./min. level.Max. size for this type of installation3(w/ pump circulation) is 60m , dia. max. 3.0m.With other arrangements, mechanicalagitation should be considered.Normal discharge by compressed air (2 bar).Alt. local compressor or pump.Connection hose min. ND 100.Storage tank temperature shouldo obe within the range 5 - 40 C.Connection system truck/tank to fit.Alarm when storage tankis full (light/sound).AirDrainageManually operatedservice valveTo MixerPossibility for injection of compressed airupstream from pump.Different pump types can be used. Purging ofsealing should be considered.Circulation system to silo preferably viaweigh bin, alt. from pump to filling pipe.®EMSAC 500SPumpAlternativecirculationSystem to be cleaned regularly.Drainage system for circulationpipes.DrainageAlarm