2022年我国锂离子电池行业产值突破1.2万亿元.pdf

2017，52(7):96 103 20孟庆新 钢包外壁热像与内衬厚度之间关系的模拟研究D 武汉:武汉科技大学，2007MENG QingxinSimulation study of the relationship betweenthermal image on outside shell and inner lining thickness of ladleD Wuhan:Wuhan University of Science and Technology，2007 21王淼 新型耐火材料改善钢包热特性的研究D 沈阳:东北大学，2017WANG Miao Study on improvement of thermal properties of ladlewith new refractory materialsD Shenyang:Northeastern Uni-versity，2017Influence of wall structure on thermal insulation performance of slag ladle andits effect evaluationSUN Lei，ZHANG Yuzhu，ZHEN Changliang，ZHAO Kai(College of Metallurgy and Energy，North China University of Science and Technology，Tangshan 063210，China)Abstract:In order to realize the efficient utilization and recovery of molten steel slag waste heat resources andelement resources，aiming at the problem of temperature drop caused by heat loss during slag transportation，a two-dimensional heat transfer model of slag-clad interface was established by numerical simulation The effects ofchanging the insulation structure of slag cladding and the temperature of baking slag ladle on the temperature dropand insulation effect of slag during slag transportation were studied，and the economic analysis of insulation claddingstructure was further carried out The results show that compared with the traditional slag ladle，the temperaturedrop of slag can be significantly reduced by using the insulation wall structure，and the slag temperature dropdecreased by 42 75 The insulation effect of magnesia-alumina spinel castable combination in slag ladleworking layer is more obvious than that of magnesia-carbon brick combination，and the temperature drop is reducedby 30 The average temperature drop rate of slag edge decreased from 14.11 /min to 4.26 /min afterpreheating of baking slag ladle The economic analysis results of heat preservation effect of different wall structuresshow that When the magnesia alumina spinel castable is 120 mm，the high alumina castable is 110 mm，and thelightweight insulation brick is 20 mm are used in slag ladle wall，the economy of heat preservation effect is the best，which can save 195 kW h electric heating，and is beneficial to realize efficient recovery and utilization of slag heatKey words:slag ladle;slag;refractory material;numerical simulation;heat preservation2022 年我国锂离子电池行业产值突破 1 2 万亿元2 月 23 日，工业和信息化部官网发布消息，2022 年我国锂离子电池行业总产值突破 1 2 万亿元。2022 年，我国锂离子电池行业坚持供给侧结构性改革，加快技术创新和转型升级发展，不断提升先进产品供给能力，总体保持快速增长态势。根据行业规范公告企业信息及研究机构测算，2022 年，全国锂离子电池产量达到 750 GWh，同比增长超过 130%。其中，储能型锂电产量突破 100 GWh;正极材料、负极材料、隔膜、电解液等锂电一阶材料产量分别约为 185 万吨、140 万吨、130 亿平方米、85 万吨，同比增长均达 60%以上。锂离子电池产业主要指标的增长，与新能源汽车等产业快速发展紧密相关。2022 年，锂电在新能源汽车领域以及风光储能、通信储能、家用储能等储能领域加快兴起并迎来增长窗口期。2022 年，全国新能源汽车动力电池装车量约 295 GWh，储能锂电累计装机增速超过 130%;2022 年，全国锂电出口总额 3 426.5 亿元，同比增长 86.7%，为新能源高效开发利用和全球经济社会绿色低碳转型作出了积极贡献。(资料来源:中国有色金属报)841中 国 有 色 冶 金综合利用与环保