H4-HH-9-A h as Water screw gear units pump application Co Helical speed reducer H4

Flender/Flender Gear Units/Helical speed reducer H4

hen the fly ash content can be increased to the maximum permissible according to Indian standards. If the clinker exhibits low 3S value, the plant can increase the clinker content and reduce the amount of fly ash to obtain the same required cement strength development. Construction of the mill foundation and the base frame. This is followed by the erection of the pedestals, which are critical part of the construction phase as correct alignment is essential. The mill gear box is mounted by applying an orange Chockfast (see Figure which provides good connection of the gear box base plate and the foundation. The mill OPTIMISED GRINDING Figure 5: height of Loesche LM 5.3+3 when installed Figure 4: erection of gear box PPC capacity (tph) 2 Gearbox power (kW) 5 (Flender) Classifier LSKS 1 CS (kW) 5 Fan motor power (kW) 3 Mill diameter () 1.5 Height () 2 Grinding table diameter () 5.6 Grinding table weight () 1 Master roller (mm) 3 x2 Support roller (mm) 3 1Table 1: key data for Dadri and Nalagarh grinding stations Dadri PPC LM 5.3+3 Guarantee Achieved Mill throughput (tph) 2 2 Fineness 4 3 Feed moisture (%) 1.1 Product moisture (%) 0.3 Specific power consumption (kWh/) 3.7 2.6(mill, fan, classifier, aux)Table 2: Da ri performance data INTERNATIONAL CEMENT REVIEW JUNE 2 Ambuja Cements grinding station Nalagarh, IndiaOPTIMISED GRINDING OPTIMISED GRINDING LOE1_Advertorial_Print_ICR_6Seiter.indd 2 2.0.1 1:0 INTERNATIONAL CEMENT REVIEW JUNE 2OPTIMISED GRINDING For vertical roller mills (VRM), water injection on the grinding table is common way to stabilise the grinding bed and gives smoother mill operation with lower vibration levels. However, there are some drawbacks to water use in VRM. The feed moisture for OPC is commonly very low and in case water is added to the grinding process it has to be evaporated requiring thermal energy. If cooler exhaust gases are available in cement plant this will not pose major prob