Cement, Energy and Environment July-Sep 2002

• • Figure 6 High-efficiency preheater fan after assembly. Measure Investment Saving Rs, Lac Units Rs Lac/annum Installation ofYFD's on: a) Cooler fan 2L 4.90 23 .83 U I hr 7.50 b) Cooler fan Y5A 4.90 14.73 U I hr 4.64 c) Cooler fan VSB 4.90 6.12 U I hr 2.00 Upgradation of PH tower wi th LP cyclones along with higher capacity PH fan and ESP fan * 430.00 2.77 U I ton clinker 125.50** Installation of flyash feeding and weighing system for CM - 1 and Sepax separator for CM -2 closed circuiting 350 - - Total 794.70 - 139.64 * Kiln capacity increasedfrom 2800 TPD to 3300 TPD. ** Represents saving accruing from saving in power only, and does not include the contribution from capacity increase. Figure 7 depicts the progressive reduction in power consumption for cement (OPC 43) and clinker production from 1997-98 to 2001 -02 at Chittor Cement Works,Chittorgarh. 105 102.33 100.62 • Clinkerisation i • 97.93 • OPC 43 Gr. I 100 • • 94.06 95 • 90.15 z 0 90 • ..... 85 t::: 80 72.84 z 75 70.53 70.36 69.31 ::> • 70 • • • 66.07 65 • 60 1997-98 1998-99 1999-00 2000-01 2001-02 YEAR Figure 7 Progressive reduction in power consumption at Chittor Cement Works. fD