水泥回转窑托轮推力测试技术研究

发布时间：2018-05-11 23:15

本文选题：回转窑 + 轴向推力　；参考：《内蒙古工业大学》2015年硕士论文

【摘要】：回转窑作为水泥、建材、冶金等行业中的重要生产设备,其技术性能和运转情况在很大程度上决定着企业产品的质量和成本。由于回转窑倾斜安装在托轮装置上,托轮承受着来自窑体的全部重量,窑体和托轮会因自身重力产生沿轴向的分力,同时在回转窑运转过程中,因轮带与托轮之间的摩擦亦会使托轮受到沿轴向的推力。托轮受到的轴向推力较大时,会引起托轮轴瓦发热、托轮轴相对滑动、筒体上下窜动等现象的发生,托轮因此出现不同程度的损坏,导致各运动部件的磨损加剧、受力不均,引发生产事故,为企业带来巨大经济损失。因此,测量托轮推力可以帮助设备维护人员判断托轮当前的工作状态,有效地避免因托轮问题带来的经常性停窑等损失,对于维护企业生产成本具有重要的实际意义。目前,国内外尚没有能够推广使用的托轮推力测量仪器设备,因此有必要研制一种使用方便、测量精确,适用于实际现场的托轮轴向推力测量装置。通过对水泥回转窑生产现场的调查分析,以回转窑托轮受力产生原因为理论基础,设计了一种测量托轮推力的专用传感器。该传感器的研制解决了托轮推力作用下因轴承底座发生变形较小引起的低灵敏度输出和因筒体一侧高温辐射引起的传感器两侧温度不同造成传感器产生虚假输出的两大技术难题,达到了预期的高分辨率要求,并针对推力传感器现场工作中受一侧高温辐射影响的情况,提出了全桥测量的双温度补偿技术。同时解决了因托轮受力的耦合性带来的影响,实现托轮轴向推力的独立测量。在设计制作推力传感器的基础上,实现了传感器的现场安装、标定及在线监测,为设备维护者提供了重要的参考依据,满足实际生产需求,且测量结果可靠,具有一定的推广价值。
[Abstract]:Rotary kiln is an important production equipment in cement, building materials, metallurgy and other industries. Its technical performance and operation condition largely determine the quality and cost of enterprise products. Because the rotary kiln is inclined to be installed on the supporting wheel device, the supporting wheel bears all the weight from the kiln body. The kiln body and the supporting wheel will produce axial forces due to their own gravity, and in the process of rotary kiln operation, The friction between the roller and the roller also causes the wheel to be thrust along the axis. When the axial thrust of the supporting wheel is larger, it will cause the heat of the bearing, the relative sliding of the bearing shaft, the up-and-down movement of the cylinder, and the damage of the supporting wheel in varying degrees, which results in the wear and tear of the moving parts being aggravated and the force being unevenly distributed. Cause production accident, bring huge economic loss for enterprise. Therefore, measuring the thrust of the supporting wheel can help the maintenance personnel to judge the current working state of the supporting wheel, effectively avoid the loss of frequent kiln stoppage caused by the problem of the supporting wheel, and have important practical significance for the maintenance of the production cost of the enterprise. At present, there is no universal instrument and equipment to measure the thrust of supporting wheel at home and abroad, so it is necessary to develop a kind of supporting wheel axial thrust measuring device which is easy to use, accurate in measurement and suitable for actual field. Based on the investigation and analysis of cement rotary kiln production site, a special sensor is designed to measure the thrust of the rotary kiln. The development of the sensor solves the problem of low sensitivity output caused by small deformation of bearing base under the action of supporting wheel thrust and the false output caused by the difference of temperature between the two sides of the sensor caused by high temperature radiation from one side of the cylinder. Two major technical problems, The expected high resolution requirement is achieved and a dual-temperature compensation technique for full-bridge measurement is proposed in view of the fact that the thrust sensor is affected by one side of high temperature radiation in the field work. At the same time, the influence of coupling of bearing wheel is solved, and the independent measurement of axial thrust is realized. Based on the design and manufacture of the thrust sensor, the field installation, calibration and on-line monitoring of the sensor are realized, which provides an important reference basis for the maintenance of the equipment and meets the actual production requirements, and the measurement results are reliable. Has certain promotion value.
【学位授予单位】：内蒙古工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ172.622

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