(1. 中南大学 能源科学与工程学院，长沙 410083；
2. 中南大学 流程工业节能湖南省重点实验室，长沙 410083；
3. 湖南节能评价技术研究中心，长沙 410083)
摘 要: 为定量分析电解锰生产流程的能源利用情况，以钢铁生产流程的“基准物流图”概念为基础，建立电解锰生产流程的理想物流图，提出理想能耗的计算方法。以某电解锰企业生产数据为依据，绘制该电解锰生产流程的实际物流图和理想物流图，计算出电解锰单位产品理想能耗为22.32 GJ/t，并定量分析各类物流变化对电解锰理想能耗的影响。结果表明：在电解锰生产流程中，当出现α物流时，将使能耗降低，有利于节能；当出现β和γ物流时，将使能耗增加，而且越是后部工序出现这两种物流，能耗增加的越多。为降低电解锰能耗，应降低外排矿渣和阳极泥中Mn元素的含量，使各道工序中的含Mn物流尽量多地输入到下一道工序。
关键字: 电解锰；物流；理想物流图；理想能耗
（1. School of Energy Science and Engineering, Central South University, Changsha 410083, China;
2. Hunan Key Laboratory of Energy Conservation in Process Industry,
Central South University, Changsha 410083, China;
3. Hunan Research Center of Energy-saving Evaluation Technology, Changsha 410083, China）
Abstract:In order to quantitatively analyze the energy utilization in the electrolytic manganese metal (EMM) process, based on the concept of standard material flows diagram of steel manufacturing process, the concept of optimal material flows diagram of the EMM process was defined and the calculation method of optimal energy intensity was put forward. Based on the EMM plant data, the real material flows diagram of this plant was figured out, and the optimal material flows diagram was established accordingly. The unit optimal energy intensity for the EMM products was calculated as 22.32 GJ/t. The influences of material flows in EMM process on its optimal energy intensity were analyzed quantitatively as examples. The results show that, when the material flows of α are happened in the EMM process, the energy intensity of final product decreases, and it is beneficial for energy-saving. Nevertheless, when the material flows of β and γ happen in the EMM process, the energy intensity of final product increases significantly. In order to decrease the energy intensity of EMM product, the manganese containing materials of mineral waste residue and anode mud should be reduced, and the manganese containing materials should be impelled input to the next unit process as many as possible.
Key words: electrolytic manganese metal; material flow; optimal material flow diagram; optimal energy intensity
