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Function: _error_handler
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Function: _error_handler
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Function: _error_handler
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File: D:\database\translate.php
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Function: _error_handler
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File: D:\database\translate.php
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Function: _error_handler
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
File: D:\wwwroot\blfsy.com\application\controllers\news.php
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2024-07-09
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Message: Use of undefined constant APP_ID - assumed 'APP_ID'
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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水泥是国民经济的基础原材料，水泥行业的发展与经济建设密切相关。水泥行业设备润滑会遇到哪些主要问题？核心设备润滑如何选择润滑脂？
水泥行业设备润滑主要问题
01 开式齿轮齿面磨损严重
大多数情况是由于供油不充足造成，如油量不足时，未及时添加，或带油轮松动或脱落时，未及时发现检修；也可能是由于所使用的润滑油脂极压性及黏附性不足，无法在齿面形成足够强度和厚度的油膜。此外，设备安装不到位、齿轮加工精度不够以及齿轮材质本身存在缺陷也可能导致齿面磨损。
02 托轮大瓦腐蚀磨损
大多数厂家选用680号齿轮油来润滑，该油品黏度指数不高，易乳化，并且含有活性硫型极压添加剂，使用较长时间后可能造成轴瓦的腐蚀磨损。
03 滑履瓦温度过高
进料温度过高、冷却系统故障等工艺及设备原因可造成此类异常情况。使用的齿轮油黏温性能一般，易乳化，无法提供足够的润滑保护，也可造成此类异常情况发生。
04 磨辊轴承润滑脂泄漏
设备密封件破损，检修安装时未涂抹润滑脂或加润滑脂量不够可造成此类异常情况。油品黏温性能较差，在高温工况下黏度下降过快，也可造成此类异常情况发生。
05 润滑脂流失严重
设备轴封损坏，使用润滑脂高温性差、稠度过稀、加注过量、与原用油脂不相容，均可能造成此类异常情况发生。
核心设备如何选择润滑脂
01 立磨
立磨主要润滑部位包括磨辊轴承、主减速机、液压系统、主电机轴承等。立磨的工况为高温、低速、重载、有冲击负荷，对润滑剂性能提出了较高要求。立磨主减速机承受较大的冲击负荷，高温高压，振动大。设备开机准备时间长，气温较低时，油品需要预热。由于立磨主减速机油箱装油量大，加热等待的时间较长，因此主减速机用油脂要求具有较好的极压抗磨性、抗氧化性、热稳定性、防锈防腐性、与密封材料兼容性。
液压系统须承受连续工作中的液压传动，同时能在高低温下启动液压系统，为得到合适的生料磨效果，需要调节加载作用力。其对液压油的要求是满足液压泵的要求即可。
02 回转窑
回转窑在高温状态下重载交变慢速运转，其附件设备的维护和润滑状态关系到回转窑运行的安全和效率。大齿圈与小齿轮为开式，多粉尘，振动大，负载大，高温，要求润滑油脂工作温度范围宽、防锈蚀、具有高承载能力。液压挡轮系统工况须承受连续工作中的液压传动，同时能在高低温下启动，要求润滑油脂具有抗磨损性能、抗氧化性能及抗乳化性能。
支承装置的安装精度决定着回转窑能否安全可靠运行，运行中应注意合理控制各档托轮承载量分配、托轮的布置形式、液压挡轮的上下行压力及时间、托轮的受力、轮带与垫板的间隙。拖轮轴瓦的工况为高温、高负荷，要求润滑油脂具有高黏度指数、优良的极压抗磨性和抗乳化性。
03 辊压机
辊压机轴承在高压料层粉碎过程中，要求润滑油脂能形成高强度的油膜，从而抵抗冲击负荷，减缓振动。在生、熟料的预粉磨过程中，要求使用高黏度的油脂，避免磨碎的粉尘、颗粒及水雾进入，保护轴承内部的润滑环境。由于物料粒度及形状的变化，挤压力变化也较大，要求油脂具有较好的抗磨、抗剪切性能。辊压过程中产生的热量及振动等因素使轴承内部温升高，要求油脂具有较好的热稳定性。辊压机轴承的润滑脂都是通过外界泵送的，要求润滑油脂具有良好的泵送性，避免泵送管道堵塞。
来源：中润超油(北京)新材料有限公司
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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Function: _error_handler
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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File: D:\database\translate.php
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Function: _error_handler
File: D:\wwwroot\blfsy.com\application\views\news\knowledgePage.php
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Function: lang
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Function: _error_handler
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