煤矿斜井连续皮带出渣机关键技术研究
发布时间：2018-09-12 08:19
【摘要】：对于煤矿长大斜井隧道,连续皮带输送机以其运行可靠、出渣能力强、适应性广等优点,已成为隧道出渣系统的优选方案。但是随着运距运量的增加和工程地质条件的复杂性,连续皮带机的动力学问题和起动问题越加突出,传统的输送机设计已不能满足实际的工程需要,而目前国内关于皮带输送机的研究多集中于单驱动、单改向滚筒、单张紧装置的露天皮带输送机,因此本文以神华新街煤矿斜井隧道为背景对多点驱动连续皮带机出渣方案的确定、动态特性、最佳软起动方式三大关键技术进行研究,本文主要做了以下工作:(1)结合实际的工程背景,分析了连续皮带机出渣时的难点问题,选择了合适的驱动方案,纠偏方案,最终确定了连续皮带机的出渣方案,基于确定的出渣方案,采用常规设计的方法得到了动态仿真前所需的关键参数。(2)对皮带机关键部件输送带的动力学特性分析选择了合适的Kelvin模型作为输送带的动力学模型,之后采用有限元的思想将本工程连续皮带机划分为多个单元,通过对输送带单元、驱动滚筒单元、改向滚筒单元、张紧滚筒单元的受力特性分析推导出各单元的动力学方程从而得到整机的动力学方程,并对动力学方程中的各系数矩阵进行了求解。(3)通过对建立起的连续皮带机动力学模型和软起动问题的分析,选定采用基于功率追踪控制的Wilson-θ积分方法来求解整机动力学方程,根据求解步骤得到了仿真程序流程图,利用Matlab软件编写了动态仿真程序,并对仿真结果进行了详细分析。(4)通过对4种常用起动曲线的特性及动态仿真结果的对比分析,确定了仿真时所用Harrison正弦起动曲线的合理性,并以此为基础设计了一种更为优化的组合正弦形加速度起动曲线,仿真结果证明了所设计起动曲线的优化性与合理性。(5)基于Matlab软件的GUIDE开发工具,设计了连续皮带机动态仿真的GUI界面,主要包括参数输入、起动曲线选择和动态仿真3大板块,并通过实例演示了 GUI界面的操作过程。
[Abstract]:For long and long inclined coal mine tunnel, continuous belt conveyor has become the optimal selection scheme of tunnel slag extraction system because of its advantages of reliable operation, strong slag production ability and wide adaptability. However, with the increase of transportation volume and the complexity of engineering geological conditions, the dynamic and starting problems of continuous belt conveyor become more and more prominent, and the traditional design of conveyor can not meet the actual engineering needs. At present, domestic researches on belt conveyors are mostly focused on open-air belt conveyors with single-drive, single-direction roller and single tensioning device. Therefore, based on the inclined tunnel of Shenhua Xinjie Coal Mine, this paper studies three key technologies, such as the determination of the slagging scheme, the dynamic characteristics and the best soft starting method of the multi-point drive continuous belt conveyor. The main work of this paper is as follows: (1) based on the actual engineering background, the paper analyzes the difficult problems in the slag production of the continuous belt machine, selects the appropriate drive scheme, corrects the deviation, and finally determines the slag production scheme of the continuous belt machine. Based on the determined slag extraction scheme, the key parameters needed before dynamic simulation are obtained by conventional design method. (2) the appropriate Kelvin model is chosen as the dynamic model of conveyor belt for the analysis of the dynamic characteristics of belt conveyor's key components. After that, the continuous belt conveyor of the project is divided into several units by using the idea of finite element method. By means of the conveyor belt unit, the roller unit is driven, and the roller unit is changed to the roller unit. The mechanical characteristics of the tensioning drum element are analyzed and the dynamic equations of each element are derived and the dynamic equations of the whole machine are obtained. The coefficient matrix of the dynamic equation is solved. (3) by analyzing the dynamic model and soft start problem of continuous belt machine, the Wilson- 胃 integral method based on power tracking control is selected to solve the dynamic equation of the whole machine. According to the solving steps, the flow chart of the simulation program is obtained, and the dynamic simulation program is compiled by using Matlab software, and the simulation results are analyzed in detail. (4) the characteristics of the four commonly used starting curves and the dynamic simulation results are compared and analyzed. The rationality of the Harrison sinusoidal starting curve used in simulation is determined, and a more optimized combined sinusoidal acceleration starting curve is designed. The simulation results prove the optimality and rationality of the designed starting curve. (5) based on the GUIDE development tool of Matlab software, the GUI interface of dynamic simulation of continuous belt machine is designed, which mainly includes parameter input, starting curve selection and dynamic simulation. The operation process of GUI interface is demonstrated by an example.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD551
本文编号：2238443
[Abstract]:For long and long inclined coal mine tunnel, continuous belt conveyor has become the optimal selection scheme of tunnel slag extraction system because of its advantages of reliable operation, strong slag production ability and wide adaptability. However, with the increase of transportation volume and the complexity of engineering geological conditions, the dynamic and starting problems of continuous belt conveyor become more and more prominent, and the traditional design of conveyor can not meet the actual engineering needs. At present, domestic researches on belt conveyors are mostly focused on open-air belt conveyors with single-drive, single-direction roller and single tensioning device. Therefore, based on the inclined tunnel of Shenhua Xinjie Coal Mine, this paper studies three key technologies, such as the determination of the slagging scheme, the dynamic characteristics and the best soft starting method of the multi-point drive continuous belt conveyor. The main work of this paper is as follows: (1) based on the actual engineering background, the paper analyzes the difficult problems in the slag production of the continuous belt machine, selects the appropriate drive scheme, corrects the deviation, and finally determines the slag production scheme of the continuous belt machine. Based on the determined slag extraction scheme, the key parameters needed before dynamic simulation are obtained by conventional design method. (2) the appropriate Kelvin model is chosen as the dynamic model of conveyor belt for the analysis of the dynamic characteristics of belt conveyor's key components. After that, the continuous belt conveyor of the project is divided into several units by using the idea of finite element method. By means of the conveyor belt unit, the roller unit is driven, and the roller unit is changed to the roller unit. The mechanical characteristics of the tensioning drum element are analyzed and the dynamic equations of each element are derived and the dynamic equations of the whole machine are obtained. The coefficient matrix of the dynamic equation is solved. (3) by analyzing the dynamic model and soft start problem of continuous belt machine, the Wilson- 胃 integral method based on power tracking control is selected to solve the dynamic equation of the whole machine. According to the solving steps, the flow chart of the simulation program is obtained, and the dynamic simulation program is compiled by using Matlab software, and the simulation results are analyzed in detail. (4) the characteristics of the four commonly used starting curves and the dynamic simulation results are compared and analyzed. The rationality of the Harrison sinusoidal starting curve used in simulation is determined, and a more optimized combined sinusoidal acceleration starting curve is designed. The simulation results prove the optimality and rationality of the designed starting curve. (5) based on the GUIDE development tool of Matlab software, the GUI interface of dynamic simulation of continuous belt machine is designed, which mainly includes parameter input, starting curve selection and dynamic simulation. The operation process of GUI interface is demonstrated by an example.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD551
【参考文献】
相关期刊论文 前10条
1 戴文浩;管会生;;新街煤矿斜井隧道双模式盾构选型分析[J];矿山机械;2015年10期
2 蒲继承;;长距离大倾角主斜井带式输送机技术方案的制定[J];煤矿机械;2015年05期
3 黄琳;;带式输送机的输送带特性研究及选用[J];机电产品开发与创新;2014年06期
4 何川;;盾构/TBM施工煤矿长距离斜井的技术挑战与展望[J];隧道建设;2014年04期
5 孙亚婷;梅志荣;文志勇;张军伟;;隧道连续皮带机出碴施工技术研究[J];现代隧道技术;2013年04期
6 赵东升;廉自生;;带式输送机变频调速自动张紧装置的动态仿真[J];矿山机械;2012年03期
7 许金林;徐赞;王艳波;;西秦岭特长隧道连续皮带机出碴施工关键技术[J];隧道建设;2011年06期
8 丁剑伟;;基于动态仿真的带式输送机优化设计[J];矿山机械;2011年08期
9 朱立平;蒋卫良;;适用于我国煤矿带式输送机典型机型的研究[J];煤炭学报;2010年11期
10 孙令子;杜江;;输送带跑偏原因分析及纠偏装置的研发[J];安徽科技;2010年07期
，本文编号：2238443
本文链接：https://www.wllwen.com/kejilunwen/kuangye/2238443.html
