概述
结晶器是连铸钢中的铸坯成型设备，也是连铸机的核心设备和关键技术。其作用是将不断注入其内腔的高温钢水通过水冷铜板强制冷却，导出其热量，并逐渐凝固成具有所需断面形状和坯壳厚度的铸坯。并将尚处于液态的铸坯连续地从结晶器下水口拉出，为铸坯在随后的二冷区完全凝固创造条件。
结晶器振动装置的主要作用是使结晶器按给定的振幅、频率及波形偏转特性做机械运动，目的是便于脱模和防止铸坯在凝固过程中与结晶器铜壁粘结而发生粘模、漏钢事故。
MOC-K100结晶器振动在线监测系统可立体检测结晶器振动的正负频率及波形特征，实时提供在线变化数据，为现场检测人员提供便捷、有效的检测手段。
制度意义
1. When the continuous casting machine is not working properly, the billet quality problems (such as unstable oscillation marks, edge cracks, etc.) occur. According to the monitoring results of the system, we can combine with the actual on- site situation to analyze the cause of the failure, and efficiently evaluate and solve the problem of the oscillation table to improve product quality.
2. During the normal operation of the equipment, with the fatigue and wear of the mechanical structure of the mold, the expected oscillation parameters of the mold and the actual oscillation parameters will have a oscillation difference with time change, resulting in the internal process parameters’ changing of the continuous casting machine. Timely and accurate monitoring of changes in these parameters is helpful to schedule maintenance.
3. Transfer equipment maintenance from regular maintenance to state maintenance, do not repair when there is no problem, and arrange maintenance according to production needs when abnormal signs appear. Prevent over-repair and under-repair.
4. According to the monitoring results of the equipment, the on-site working parameters are adjusted in time to avoid adopting inaccurate or large-error oscillation to work and prevent the “breakout” accident.
5. We can timely find out that the oscillation is not stable or out of control in a small range, so as to avoid the formation of unevenness and unstable oscillation marks on the surface of the slab during the solidification of molten steel into the slab, and improve the surface quality of the product.
6. Adjust the working parameters reasonably according to the monitoring results, avoiding the use of excessive safety factor, making the entire assembly line play a normal working efficiency, increasing the output of billets, and create favorable conditions for increasing the casting speed.
The functions of the system
(1) Overview of monitoring parameters: Provides an overview of real-time monitoring parameters in the full screen, displaying all real-time data including oscillation parameters and process parameters.
(2) Time domain waveform: This function mainly displays the oscillation waveforms of multiple measuring points and one channel standard waveform in real time, and simultaneously displays the three elements of oscillation of each measuring point in real time.
(3) Waveform superposition: The difference between this function and the time domain waveform is that the waveforms of multiple measuring points are superimposed on a graph with lines of different colors on the same scale, and the oscillation difference of each channel can be calculated and displayed intuitively.
(4) FFT: This functional module completes the calculation and display of the oscillation spectrum in real time. It is used to evaluate the waveform distortion of the entire oscillation table and to determine whether there is a problem with the installation of the oscillation device.
（5）棒图：用峰值、传感器间隙电压的棒图表示各测点的振荡情况，更加直观。
（6）趋势：启动该模块后，操作人员可以查阅数据库中的历史记录，分析各参数的变化趋势，并以此分析不同钢材在振荡条件下的品质及工艺参数设置的合理性。
系统参数
1.测量通道数：根据模具设计，最多可布置16个传感器
2.传感器：三维振动传感（X、Y、Z三轴）
3.灵敏度：1000mV/g
4、频率范围：0.04～10HZ
5、频率精度：±0.01Hz
6、振幅精度：0.005mm
7.传输方式：有线数字传输、无线传输
8.主机：3U标准机架，手持设备
9.传感器供电电源：24V.DC
10、主机电源：220V.AC/50Hz
结晶器振动曲线
系统结构
连铸结晶器在线振动检测系统主要组成部件有：
1.三维振动测量传感器
2.手持式振动传感器校准器
3.专用信号连接线
4. 前置放大器
5. 运算处理单元
6.图形显示终端
7.工业以太网（TCP/IP）或PROFIBUS-DP通讯组件
8.控制柜
武汉中兴测控工程有限公司
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