Cement and Energy

The findings are summarised in Table I . Table 1 : Operational results summary for three Hurriclon system trial projects Before modernisation Pressure Residual loss dust mbar Project 1 l2 3 62g/Nm Gollheim plant Project2 30 3 30-35 g/Am Gollheim plant 3 82g/Nm Project 3 14 3 44 g/Am Mannersdorf plant In order to ensure that the evidence was independent of varyi ng performance data at the time of measurement, the static pressure both up and downstream of the cyclone was measured, whereby the static pressure prior to the cyclone forms the basis for consideration of the results. Conclusion Due to the fact that the ex penditure on energy for a cyclone over a period of 10 years constitutes 90% of total Courtesy: World Cement, October 1997 After modcitlisation Pressure Residual Reduction Energy loss dust in Saving per mbar % year, kWh 7 3 61g/Nm 41 350000 14 3 30-35 g/Am 53 1.6 million 82 g/Nrn 3 7 36 g/Am 3 50 750000 plant costs, enormous cost advantages can be achieved with a weLl-designed cyclone intake and Huniclon vortex finder vanes. Under practi ca l conditions, up to 50% reduction in pressure losses have been demonstrated by install ing Hurriclon vo rtex fi nder vanes . In the case of large quantities of gas and retrofitting with the Hun·iclon vo rtex fi nder vanes, this means savings of around l mi ll ion kWh annually, and the recovery of additional costs resulting from the vortex finder vanes wi thi n a year. 12