SPIRAC's first three stage vertical lift installation has been successfully commissioned in Malaysia. This system handles dewatered BFP sludge in a pulp and forest products processing plant.
The Bilt Sabah Forest Industries Paper Mill is located in Malaysia (Sipitang, Sabah). The new SPIRAC sludge handling system conveys 11.7m³/hr of dewatered sludge from a bin at ground level to a storage bin approximately 30m above ground.
Dewatered sludge from a belt press is fed with loaders intermittently and uncontrolled into a 20m³ bin at ground level. From this bin the sludge is extracted with a quad screw live bottom (LB) and 3 vertical OK-type conveyors as well as intermediate horizontal cross conveyors to a 5m³ storage bin approximately 30m above ground. Another quad screw LB transfers sludge from this storage bin to the screw feeder.
- Volumetric flow rate: 11.7m³/hr
- Sludge DS: 25 – 30%
- Sludge bulk density: 1000kg/m³ (approx.)
- Fibre / Ash content: 20-40% OD / 25-60% OD