Minimizing through put time of spare parts manufacturing for alternator drive turbine of a fertilizer factory

Abstract

Fertilizer seclor is one of the import.m! sectors in the industrial be~ in our country, A number of equipment of mechanical, electneal, instrumental ele are being used to produce urea and ammonia in fertilizer factorfes, Among the equipments, turbine plays a vital role to drive different pumps, compressors, altemators etc. To maintain them in a well balanced condllion it is necessary to provide with proper maintenance works for the prime movers i e, turbines. To facilitate maintenance job smoothly and sustain the maximum output of the turbines, II has meliculously been tried in this work to procure some of the spare parts of the aRernator drive turbine locally thereby replacing the imported spare parts of those kinds These items have been proposed to be manufactured al the local workshop of Zia Fertilizer Co. ltd. (ZFCL). This is the best way for procurement of spare parts although there are several other ways for procuring them. There are a lot of actiVities Involved in manufactllring them. Studying the spare parts, selecting their lot sizes, identifying noncritical an.d non-precision lIems, suggesltng about the material: their fllnctions, preparing process sheets etc. have been done in this work. Moreover, a computerized process planning has been adopted to determine the minimum manufacturing lime or the best possible lime for their manufacturing as well as criticality of the Jobs with the aid of a computer software of critical path method