摘要：中速磨煤机是粉煤气化装置核心设备，其运行稳定性与效率直接影响气化装置运行负荷。改造碾磨、分离系统及耐磨部件后，核心性能提升，但出现振动频繁报警与壳体局部磨损加剧问题。本文经实地跟踪监测、多工况调整试验，分析问题根源，基于试验数据优化运行参数并提出针对性方案。结果表明：加载油压调至8 - 10MPa，可解决因碾磨能力不足导致的振动问题，最大出力提至87t/h，粒度＜90um通过率达79.6%，优于改造后性能验收指标；粘贴陶瓷防护层、加装导流板等可缓解壳体局部磨损。研究成果为同类改造磨煤机运行调整提供技术参考与实践依据。
Abstract: As the core equipment of coal gasification units, medium-speed coal mills directly influence operational load through their stability and efficiency. Although upgrades to grinding, separation systems, and wear-resistant components enhanced core performance, new challenges emerged: frequent vibration alarms and intensified localized casing wear. Through field monitoring and multi-condition tests, this study identified root causes, optimized operational parameters based on experimental data, and proposed targeted solutions. Results demonstrate that adjusting the oil pressure to 8-10MPa resolved vibration issues caused by insufficient grinding capacity, achieving a maximum output of 87t/h with 79.6% particle size <90um pass rate—exceeding post-upgrade performance benchmarks. Ceramic protective coatings and guide plates effectively mitigated localized casing wear. These findings provide technical references and practical guidance for similar coal mill retrofitting operations.
订阅方式：
①在线订阅（推荐）：www.sdchem.net.cn
②邮局订阅：邮发代号24-109
投稿方式：
①在线投稿（推荐）：www.sdchem.net.cn
作者只需要简单注册获得用户名和密码后，就可随时进行投稿、查稿，全程跟踪稿件的发表过程，使您的论文发表更加方便、快捷、透明、高效。
②邮箱投稿：sdhgtg@163.com sdhg@sdchem.net
若“在线投稿”不成功，可使用邮箱投稿，投稿邮件主题：第一作者名字/稿件题目。
投稿时请注意以下事项：
①文前应有中英文“题目”、“作者姓名”、“单位”、“邮编”、“摘要”、“关键词”；
②作者简介包括：姓名、出生年、性别、民族、籍贯或出生地、工作单位、职务或职称、学位、研究方向；
③论文末应附“参考文献”，执行国标GB/T7714-2005标准，“参考文献”序号应与论文中出现的顺序相符；
④注明作者的联系方式，包括电话、E-mail、详细的通讯地址、邮编，以便联系并邮寄杂志。
欢迎投稿 答复快捷 发表迅速