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有色金属(选矿部分):2021,(3):62-68
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废旧动力电池破碎料细碎与剥粉试验研究
卢世杰, 周宏喜, 郎平振, 孙小旭, 何建成
(1.北矿机电科技有限责任公司)
EXPERIMENTAL RESEARCH OF SPENT TRACTION BATTERY BROKEN MATERIALS
LU Shijie, Zhou Hongxi, LANG Pingzhen, Sun Xiaoxu, He Jiancheng
(1.BGRIMM Machinery & Automation Technology Co., Ltd.)
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本文已被:浏览 24次   下载 23
投稿时间:2020-11-23    修订日期:2020-11-30
中文摘要: 我国新能源汽车经过近10年飞速发展,保有量已突破400万辆,首批汽车动力电池即将退役,亟需进行废旧动力电池回收处理工艺技术及装备的研究。本文分析了动力电池破碎产物的物料特性及影响细碎与剥粉效率的关键因素,采用实验室型细碎机开展试验研究,考察不同转子转速、物料粒度、风机转速、转子类型及高温热解等设备和工艺参数对剥粉效果的影响,单一因素的对比试验结果表明设备转速3141rpm,给料粒度-9.5mm占91.6%,风机转速2300rpm,活动式锤刀转子细碎后产品中-200 目的负累积产率最高,Co金属回收率最高,细碎产品品质好,回收价值高。此外,物料在细碎前经高温热解处理,炭化脱除极片上的粘接剂,可显著提高细粒级黑粉的产率和Co金属回收率。
中文关键词: 动力电池  细碎  剥粉  高温热解  回收率
Abstract:After nearly 10 years of rapid development, the number of new energy vehicles in China has exceeded 4 million. The first batch of automobile traction batteries is about to be retired, so it is in urgent need of research on the technology and equipment to recycle spent traction batteries. This paper analyzes the material characteristics of the traction battery broken products and the key factors that influence fine crushing and powdering efficiency. The laboratory-type fine crusher is used to carry out experimental research to investigate the equipment and process parameters which affect powdering effect, such as rotor speed, material size, air blower speed, rotor type and pyrogenic decomposition. The single factor comparative test results show when the rotor speed is 3141rpm, the feed size is -9.5mm accounting to 91.6%, the blower speed is 2300rpm and the movable hammer knife rotor of fine crusher, the negative cumulative yield of -200 mesh is the highest, and the recovery rate of Co metal is the highest, fining products have good quality and high recycling value. In addition, the material is subjected to pyrogenic decomposition treatment before fine crushing to remove the adhesive on positive electrode and negative electrode plates, which can significantly improve the yield of fine-grained black powder and the recovery rate of Co metal.
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基金项目:(JTZD 0130-1904)
引用文本:
卢世杰,周宏喜,郎平振,孙小旭,何建成.废旧动力电池破碎料细碎与剥粉试验研究[J].有色金属(选矿部分),2021(3):62-68.
LU Shijie,Zhou Hongxi,LANG Pingzhen,Sun Xiaoxu,He Jiancheng.EXPERIMENTAL RESEARCH OF SPENT TRACTION BATTERY BROKEN MATERIALS[J].Nonferrous Metals(Mineral Processing Section),2021(3):62-68.

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