Design and Development of a Lift for Bag Storage Area

Abstract

In most of industries storage areas are provided for storing machines, its spare parts and other equipment. For storage industries built a big or small storage yards as per requirements. In most of cement industries it is require to store the empty bags for packing cement. J.K.Lakshmi Cement Ltd. is one of the major cement industry in India. In Gujarat there are two split grinding units built one unit is situated at Kalol, Gandhinagar and other is situated at Surat. These both plants are split grinding unit in which mixture of clinker and gypsum is grind in big ball mill. After grinding the final product (cement) is store in big silos. Cement is packed in bags by roto packer machine. For completing the dispatch requirements empty bags always to be shifted to the packer machine continuously. In Kalol cement plant there are two bag storage areas which are built above the packer machine area. For maintaining the stock bag lots are shifted to the storage areas from ground level. In this plant a hoisting lift (overhanging type lift) built for transfer the bag lot. In this system a trolley is lifted by a 440V 3-phase motor whose load carrying capacity is 1000 kg. According to safety rules for bag storage area more than 50V DC power supply is not allowed in bag storage area and another problem in the system is that the trolley is swinging due to wind while it is lifted which create unsafe condition.