合金矿粒度自动检测系统的研究与开发
发布时间：2019-05-13 21:30
【摘要】：高炉炼铁是我国最主要的一种炼铁途径,原料在进入高炉之前,要先经过一步叫做烧结的工艺。在烧结之前,需先进行原料的制备。由于用于制备烧结原料的合金矿粒径大小不一,无法直接用于生产,故需要有一套粒度检测装置,可以快速地实现粒度的筛分。本文所述的合金矿粒度检测系统,就是一个可以实现多级筛分的装置。文章首先介绍了该检测装置的结构特点及工作原理,并对其中的关键技术作了相应的阐述。该装置上以三角形形式安装三台振动电机,通过采用单个或者多个不同的振动电机加以组合,以提供多种激振方式和工作程序,进而实现物料的筛分、剔卡和直线输送三种工序。通过对振动时间的调整,可以尽可能地提高筛分效率和速度。文章根据检测装置的工作原理,明确了实现各个工序的电气元件的动作顺序,选取了相应的控制元件,并编制了对应的控制程序。通过控制系统的设计,不仅可以实现系统的自动运行,也可以实现手动控制。自动控制,满足了工业生产现场对时间成本的要求,同时,手动控制方式方便工人对设备进行检修和维护。文章详细介绍了该检测系统的重要组成部分—称重系统。该系统中每一粒级的称重系统包含三只同型号、近似等边三角形分布的称重传感器。对该称重系统进行受力分析,建立了其数学模型,在simulink环境下,对系统在阶跃信号激励时进行了仿真分析。在新乡四达公司,模拟生产现场的实际状况,以重量的阶跃信号作为称重系统的激励,进行了大量的烧结球团实物试验。试验结果验证了仿真结果的正确性,得到了准确的采样时间,为编写物料采样程序提供了依据。文章最后介绍了控制页面的设计。本文中采用的是VB程序进行控制界面的设计,同时用VB编写了PLC与计算机通讯程序。在VB软件中,利用各种自带的控件可以快速地设计出界面友好的控制页面,同时提供了通讯控件—MSComm。该控件提供了一系列标准通信命令的接口,它允许建立串口连接,可以连接到其他通信设备(如Modem)。该检测系统可以满足多级筛分的要求,效率快,精度高,设计的控制系统运行稳定。
[Abstract]:Blast furnace ironmaking is the most important way of ironmaking in our country. Before entering blast furnace, raw materials must go through a process called sintering. Before sintering, the raw materials need to be prepared. Because the size of gold deposit used to prepare sintered raw materials is different, it can not be directly used in production, so it is necessary to have a set of particle size detection device, which can quickly realize particle size screening. The alloy ore particle size detection system described in this paper is a device which can realize multi-stage screening. In this paper, the structural characteristics and working principle of the detection device are introduced, and the key technologies are described accordingly. Three vibration motors are installed on the device in the form of triangles, which are combined by using single or more different vibration motors to provide a variety of excitation modes and working procedures, so as to realize the screening of materials. There are three processes: card removal and straight line transportation. By adjusting the vibration time, the screening efficiency and speed can be improved as much as possible. According to the working principle of the detection device, this paper defines the action sequence of the electrical components in each process, selects the corresponding control elements, and compiles the corresponding control program. Through the design of the control system, not only the automatic operation of the system can be realized, but also manual control can be realized. Automatic control meets the requirements of time cost in industrial production site. At the same time, manual control is convenient for workers to repair and maintain the equipment. In this paper, the weighing system, which is an important part of the detection system, is introduced in detail. The weighing system of each grain size in this system consists of three weighing sensors of the same type, which are approximately equilateral triangle distribution. The force analysis of the weighing system is carried out, and its mathematical model is established. Under the environment of simulink, the system is simulated and analyzed when the step signal is excited. In Xinxiang Sida Company, a large number of physical tests of sintered pellets were carried out by simulating the actual situation of the production site and taking the weight step signal as the excitation of the weighing system. The experimental results verify the correctness of the simulation results and obtain the accurate sampling time, which provides the basis for compiling the material sampling program. At the end of the paper, the design of control page is introduced. In this paper, VB program is used to design the control interface, and the communication program between PLC and computer is written with VB. In VB software, the interface friendly control page can be designed quickly by using various self-contained controls, and the communication control-MSComm. is provided at the same time. The control provides an interface to a series of standard communication commands that allow serial port connections to be connected to other communication devices, such as Modem). The detection system can meet the requirements of multi-stage screening, fast efficiency, high accuracy, and the designed control system runs stably.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TF52;TP274
本文编号：2476202
[Abstract]:Blast furnace ironmaking is the most important way of ironmaking in our country. Before entering blast furnace, raw materials must go through a process called sintering. Before sintering, the raw materials need to be prepared. Because the size of gold deposit used to prepare sintered raw materials is different, it can not be directly used in production, so it is necessary to have a set of particle size detection device, which can quickly realize particle size screening. The alloy ore particle size detection system described in this paper is a device which can realize multi-stage screening. In this paper, the structural characteristics and working principle of the detection device are introduced, and the key technologies are described accordingly. Three vibration motors are installed on the device in the form of triangles, which are combined by using single or more different vibration motors to provide a variety of excitation modes and working procedures, so as to realize the screening of materials. There are three processes: card removal and straight line transportation. By adjusting the vibration time, the screening efficiency and speed can be improved as much as possible. According to the working principle of the detection device, this paper defines the action sequence of the electrical components in each process, selects the corresponding control elements, and compiles the corresponding control program. Through the design of the control system, not only the automatic operation of the system can be realized, but also manual control can be realized. Automatic control meets the requirements of time cost in industrial production site. At the same time, manual control is convenient for workers to repair and maintain the equipment. In this paper, the weighing system, which is an important part of the detection system, is introduced in detail. The weighing system of each grain size in this system consists of three weighing sensors of the same type, which are approximately equilateral triangle distribution. The force analysis of the weighing system is carried out, and its mathematical model is established. Under the environment of simulink, the system is simulated and analyzed when the step signal is excited. In Xinxiang Sida Company, a large number of physical tests of sintered pellets were carried out by simulating the actual situation of the production site and taking the weight step signal as the excitation of the weighing system. The experimental results verify the correctness of the simulation results and obtain the accurate sampling time, which provides the basis for compiling the material sampling program. At the end of the paper, the design of control page is introduced. In this paper, VB program is used to design the control interface, and the communication program between PLC and computer is written with VB. In VB software, the interface friendly control page can be designed quickly by using various self-contained controls, and the communication control-MSComm. is provided at the same time. The control provides an interface to a series of standard communication commands that allow serial port connections to be connected to other communication devices, such as Modem). The detection system can meet the requirements of multi-stage screening, fast efficiency, high accuracy, and the designed control system runs stably.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TF52;TP274
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