圆管带式输送机在大型火力发电厂中的应用研究
发布时间：2018-08-20 12:43
【摘要】：圆管带式输送机是基于通用槽型带式输送机不断改进发展而来的一系列特别带式输送机。它具有实现大倾角输送、在空间可进行弯曲布置、适应较为复杂的地形结构、输送过程中密闭环保、可进行双向输送物料等优点。在矿山开采、电力生产、金属冶炼、水泥生产、垃圾处理等行业进行连续输送各种散状物料。由于输送过程中圆管状输送带都是将散状物料包裹其内,因此物料不会受到刮风和下雨等环境因素影响,从而也不会因物料飞扬和撒落而污染周围的环境,同时也避免了外界环境污染到输送物料。圆管带式输送机在运行过程中常会发生头尾过渡段输送带跑偏、中部成管段输送带扭转等情况,倘若不能及时予以纠正会造成输送带划伤、撕裂甚至是叠带等较为严重的后果。内蒙古托克托电厂已投产了两条圆管带式输送机,其中一条用于将一二期灰库粉煤灰输送至厂外储灰场,另一条用于将厂外储煤场的燃煤输送至厂内的输煤系统,分别于2010年和2012年投入使用,管径分别为400mm、500mm,头尾平面直线距离分别为3.0km、1.1km。两条圆管带式输送机在实际运行过程中多次出现头尾过渡段输送带跑偏和成管段输送带扭转问题,比较严重的问题是两条圆管带式输送机输送带在头部过渡段未能完全展开而导致发生叠带各一次。但最为严重的是2011年输灰圆管带式输送机由于输送带跑偏及回程支撑托辊损坏导致输送带反带并且纵向撕裂约500m,被迫将撕裂部分输送带进行更换,设备成本和经济损失高达900万元。本文首先从工作原理上介绍了圆管带式输送机,并分析总结了其主要性能特点,对比了国内外发展水平和研究现状,结合某电厂的实际应用分析说明了圆管带式输送机的运行阻力、管径和带速的选择,过渡段长度和弯曲半径的确定,托辊选型及间距的确定及驱动功率的选择等,紧密联系实际安装调试过程对圆管带式输送机的安装工艺和调试展开论述,针对圆管带式输送机发生的故障重点分析了输送带扭转的原因,并且分析给出了一些输送带扭转监测和纠偏方法。
[Abstract]:Circular tube belt conveyor is a series of special belt conveyors based on the development of general groove belt conveyor. It has the advantages of realizing large inclination transportation, bending arrangement in space, adapting to more complicated terrain structure, sealing environmental protection in the process of transportation, and carrying out bidirectional conveying of materials. In mining, electric power production, metal smelting, cement production, garbage treatment and other industries for continuous transport of various bulk materials. In the course of conveying, the circular tubular conveyor belts are all wrapped in the bulk material, so the material will not be affected by the environmental factors such as wind and rain, and thus the surrounding environment will not be polluted by the material flying and falling. At the same time, it also avoids environmental pollution to transport materials. In the running process of the circular pipe belt conveyor, the conveyor belt deviation of the head and tail transition section and the torsion of the middle pipe belt will often occur. If it cannot be corrected in time, it will result in the belt scratching, tearing and even overlapping belt and other serious consequences. Two round pipe belt conveyors have been put into operation in Tokto Power Plant in Inner Mongolia, one of which is used to transport coal ash from the first and second phase ash reservoir to the ash storage yard outside the plant, and the other is used to transport coal fired from the coal storage yard outside the plant to the coal conveyance system inside the plant. It was put into use in 2010 and 2012, with diameter of 400mm / 500mm, straight distance of 3.0km2 / L and 1.1km. In the actual operation of the two circular pipe belt conveyors, there are many problems of running deviation of the conveyor belt and torsion of the conveyer belt at the end and the end of the transition section. The more serious problem is that the two belt conveyor belts are not fully expanded in the head transition section, resulting in the occurrence of overlapping belt once. But the most serious is that in 2011, the ash conveying pipe belt conveyor was forced to replace some of the torn conveyor belts due to the damage of the conveyor belt deviation and backhaul support roller resulting in the reverse belt of the conveyor belt and the longitudinal tearing of about 500m. Equipment costs and economic losses as high as 9 million yuan. In this paper, the working principle of the pipe belt conveyor is first introduced, and its main performance characteristics are analyzed and summarized, and the development level and research status at home and abroad are compared. Combined with the practical application analysis of a power plant, the operation resistance, the selection of pipe diameter and belt speed, the determination of the length and bending radius of transition section, the selection of roller type, the determination of spacing and the choice of driving power of circular pipe belt conveyor are explained. In close connection with the actual installation and debugging process, the installation technology and commissioning of the circular pipe belt conveyor are discussed, and the reasons for the belt torsion are analyzed emphatically in view of the failure of the circular pipe belt conveyor. Some methods of torsion monitoring and correction of conveyor belt are also analyzed.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM621
本文编号：2193644
[Abstract]:Circular tube belt conveyor is a series of special belt conveyors based on the development of general groove belt conveyor. It has the advantages of realizing large inclination transportation, bending arrangement in space, adapting to more complicated terrain structure, sealing environmental protection in the process of transportation, and carrying out bidirectional conveying of materials. In mining, electric power production, metal smelting, cement production, garbage treatment and other industries for continuous transport of various bulk materials. In the course of conveying, the circular tubular conveyor belts are all wrapped in the bulk material, so the material will not be affected by the environmental factors such as wind and rain, and thus the surrounding environment will not be polluted by the material flying and falling. At the same time, it also avoids environmental pollution to transport materials. In the running process of the circular pipe belt conveyor, the conveyor belt deviation of the head and tail transition section and the torsion of the middle pipe belt will often occur. If it cannot be corrected in time, it will result in the belt scratching, tearing and even overlapping belt and other serious consequences. Two round pipe belt conveyors have been put into operation in Tokto Power Plant in Inner Mongolia, one of which is used to transport coal ash from the first and second phase ash reservoir to the ash storage yard outside the plant, and the other is used to transport coal fired from the coal storage yard outside the plant to the coal conveyance system inside the plant. It was put into use in 2010 and 2012, with diameter of 400mm / 500mm, straight distance of 3.0km2 / L and 1.1km. In the actual operation of the two circular pipe belt conveyors, there are many problems of running deviation of the conveyor belt and torsion of the conveyer belt at the end and the end of the transition section. The more serious problem is that the two belt conveyor belts are not fully expanded in the head transition section, resulting in the occurrence of overlapping belt once. But the most serious is that in 2011, the ash conveying pipe belt conveyor was forced to replace some of the torn conveyor belts due to the damage of the conveyor belt deviation and backhaul support roller resulting in the reverse belt of the conveyor belt and the longitudinal tearing of about 500m. Equipment costs and economic losses as high as 9 million yuan. In this paper, the working principle of the pipe belt conveyor is first introduced, and its main performance characteristics are analyzed and summarized, and the development level and research status at home and abroad are compared. Combined with the practical application analysis of a power plant, the operation resistance, the selection of pipe diameter and belt speed, the determination of the length and bending radius of transition section, the selection of roller type, the determination of spacing and the choice of driving power of circular pipe belt conveyor are explained. In close connection with the actual installation and debugging process, the installation technology and commissioning of the circular pipe belt conveyor are discussed, and the reasons for the belt torsion are analyzed emphatically in view of the failure of the circular pipe belt conveyor. Some methods of torsion monitoring and correction of conveyor belt are also analyzed.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM621
【参考文献】
相关期刊论文 前10条
1 李晨曦;侯建;田恬;;圆管带式输送机输送带扭转监测装置的设计[J];露天采矿技术;2014年05期
2 田恬;侯建;李晨曦;;一种新型的圆管带式输送机自动纠偏装置[J];露天采矿技术;2014年03期
3 杨帆;金山;;圆管带式输送机新式防扭转装置[J];科技资讯;2013年09期
4 郭英;卢永军;常晓龙;;管状带式输送机跑偏原因及调整方法[J];烧结球团;2012年05期
5 汪德才;佘世云;肖红春;方兴;;管状皮带机的跑偏调整及跑偏装置的改进[J];冶金动力;2012年01期
6 张向辉;;管状带式输送机设计过程实例[J];矿山机械;2010年11期
7 吴庆;;圆管带式输送机输送带的跑偏和扭转调整[J];梅山科技;2009年06期
8 孟文俊;黄琪;王静;陈洪鹰;;圆管带式输送机的设计与选型[J];硫磷设计与粉体工程;2009年06期
9 杨宇;尚文勇;沈攀登;;国内最大管状带式输送机系统设计与安装[J];人民长江;2009年18期
10 杜锡刚;韩刚;;圆管带式输送机输送带弯曲阻力的理论分析[J];起重运输机械;2009年06期
相关硕士学位论文 前5条
1 梁睿;圆管带式输送机扭转检测及纠偏系统研究[D];青岛理工大学;2014年
2 辛诚;圆管带式输送机钢结构参数化有限元分析系统开发[D];东北大学;2012年
3 郭遐;圆管带式输送机金属结构受力分析与计算[D];太原科技大学;2009年
4 黎胜龙;圆管带式输送机整体机架结构的动态特性以及对随机风环境适应性研究[D];湖南大学;2006年
5 于野;圆管带式输送机设计理论的研究[D];东北大学;2006年
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