斜窄流浓密箱底流浓度自动控制系统研究
发布时间：2018-11-27 07:10
【摘要】：斜窄流分级浓密箱是在引进国外设备的基础上,进行一系列创新性研发的水力分级设备。该设备结构简单、易于操作、能耗低、分级效率高,目前其逐渐被应用于钢铁、环保、制糖、磷化工等多个领域。鞍钢集团矿业公司选钛厂原来是采用先浓缩脱泥再分级的工艺,该工艺存在着很多生产技术问题,如浓缩分级设备的分级效率和生产能力较低,浓缩脱泥效果较差及筛网磨损快等,为了解决这些技术问题,选钛厂采用了斜窄流浓密箱进行分级和浓缩作业,分级浓缩出来的矿物粒级完全达到了选钛作业的粒级要求,分级效率都很高。但其经常受到入选原矿流量、浓度和粒度的波动影响,通过人工方式对流量、浓度等参数进行控制,往往会使各类技术指标都达不到要求。因此,利用自动控制技术来对斜窄流浓密箱实现自动控制具有重要意义。本文借鉴了国内外选厂斜窄流分级浓密箱底流流量、浓度等参数自动检测及控制技术,并结合其在现场应用情况,应用成熟的PLC控制器和仪表检测技术,对斜窄流分级浓密箱分级和浓缩过程实现自动控制。经过一段时间的现场考察和分析,设计并完成了一套以WINCC及SIMATIC S7-300系列PLC为主体的斜窄流分级浓密箱底流浓度自动控制系统。在掌握PLC工作原理和使用方法的基础上,编写了斜窄流分级浓密箱的PLC控制程序(编程语言为梯形图)。经过分析比较,本自动控制系统控制器选用西门子S7-300系列中以CPU 315-2DP为控制核心的PLC；检测仪表采用超声波浓度计、HHD智能电磁流量计和ZSX-D智能型电子式电动胶管调节阀。利用WINC C组态软件上位机监控系统进行组态设计。在实验室对斜窄流分级浓密箱的自动控制系统进行了模拟试验,从试验结果可以得知,自控系统的稳定性和可靠性都比较高。
[Abstract]:The tilted narrow-flow classifier is a series of innovative hydraulic classification equipment based on imported foreign equipment. The equipment is simple in structure, easy to operate, low in energy consumption and high in classification efficiency. It has been gradually used in many fields such as iron and steel, environmental protection, sugar making, phosphorus chemical industry and so on. The titanium separation plant of Angang Group Mining Company originally adopted the process of concentrating and desliming and then classifying. There are many technical problems in this process, such as the low classification efficiency and production capacity of the equipment. In order to solve these technical problems, the separation and concentration operation of inclined narrow flow thickening box is adopted in the titanium separation plant, and the grade of mineral particles can reach the requirements of the titanium separation operation. Classification efficiency is very high. However, it is often affected by the flow rate, concentration and particle size fluctuation of raw ore, and the parameters such as flow rate and concentration are controlled by manual method, which often make all kinds of technical indexes fail to meet the requirements. Therefore, it is important to use automatic control technology to realize automatic control of inclined narrow flow dense box. This paper draws lessons from the automatic detection and control technology of flow rate and concentration in the bottom flow of inclined narrow flow classified dense box at home and abroad. Combined with its application in the field, the mature PLC controller and instrument detection technology are applied. Automatic control of the classification and concentration process of inclined narrow flow classifier is realized. After a period of on-the-spot investigation and analysis, an automatic control system of bottom flow concentration of inclined narrow flow classified dense box with WINCC and SIMATIC S7-300 series PLC as the main body is designed and completed. On the basis of mastering the working principle and using method of PLC, the PLC control program (ladder diagram for programming language) of inclined narrow flow classified dense box is compiled. After analysis and comparison, the automatic control system controller selected Siemens S7-300 series of PLC; with CPU 315-2DP as the control core. Ultrasonic concentration meter, HHD intelligent electromagnetic Flowmeter and ZSX-D intelligent electronic hose regulating valve are used. The configuration design is carried out by WINC C configuration software. The simulation test of the automatic control system of the inclined narrow flow classified dense box is carried out in the laboratory. The results of the test show that the stability and reliability of the automatic control system are relatively high.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD67;TP273
本文编号：2359809
[Abstract]:The tilted narrow-flow classifier is a series of innovative hydraulic classification equipment based on imported foreign equipment. The equipment is simple in structure, easy to operate, low in energy consumption and high in classification efficiency. It has been gradually used in many fields such as iron and steel, environmental protection, sugar making, phosphorus chemical industry and so on. The titanium separation plant of Angang Group Mining Company originally adopted the process of concentrating and desliming and then classifying. There are many technical problems in this process, such as the low classification efficiency and production capacity of the equipment. In order to solve these technical problems, the separation and concentration operation of inclined narrow flow thickening box is adopted in the titanium separation plant, and the grade of mineral particles can reach the requirements of the titanium separation operation. Classification efficiency is very high. However, it is often affected by the flow rate, concentration and particle size fluctuation of raw ore, and the parameters such as flow rate and concentration are controlled by manual method, which often make all kinds of technical indexes fail to meet the requirements. Therefore, it is important to use automatic control technology to realize automatic control of inclined narrow flow dense box. This paper draws lessons from the automatic detection and control technology of flow rate and concentration in the bottom flow of inclined narrow flow classified dense box at home and abroad. Combined with its application in the field, the mature PLC controller and instrument detection technology are applied. Automatic control of the classification and concentration process of inclined narrow flow classifier is realized. After a period of on-the-spot investigation and analysis, an automatic control system of bottom flow concentration of inclined narrow flow classified dense box with WINCC and SIMATIC S7-300 series PLC as the main body is designed and completed. On the basis of mastering the working principle and using method of PLC, the PLC control program (ladder diagram for programming language) of inclined narrow flow classified dense box is compiled. After analysis and comparison, the automatic control system controller selected Siemens S7-300 series of PLC; with CPU 315-2DP as the control core. Ultrasonic concentration meter, HHD intelligent electromagnetic Flowmeter and ZSX-D intelligent electronic hose regulating valve are used. The configuration design is carried out by WINC C configuration software. The simulation test of the automatic control system of the inclined narrow flow classified dense box is carried out in the laboratory. The results of the test show that the stability and reliability of the automatic control system are relatively high.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD67;TP273
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