氧化铝生产工艺流程再造与成本节约潜力分析OA

In the production of alumina,the Bayer process,alkali lime sintering process,and combined process are mainly used to treat low-grade ores,which are easily affected by complex processes and high energy consumption,resulting in poor saving potential and high total costs.Therefore,an effective analysis is conducted on the process reengineering and cost saving potential of alumina production.Based on the objectives and principles of recycling,a key production process recycling plan is proposed from four aspects:optimization of ore pretreatment,dissolution process recycling,decomposition process recycling,and integrated optimization of thermal energy system.The cost composition is analyzed,a cost saving model for recycling process is constructed,and sensitivity analysis is carried out to clarify the key influencing factors.The experimental verification and case analysis results show that the optimization method for the production process of alumina studied has significant saving potential,and has made certain contributions to the enterprise's cost reduction and efficiency improvement,as well as enhancing market competitiveness.