磁铁矿精矿含铁量快速测量方法研究

发布时间：2019-03-06 08:47

【摘要】：铁矿石是国家重要战略资源,同时也是我国进口量最大的矿产资源。随着铁矿石贸易的发展和壮大,铁矿石含铁量的快速检测技术也越来越被整个钢铁行业看重。铁矿石的价格主要由铁矿石的含铁量和矿石中有害杂质的含量来决定。然而,进口铁矿石质量堪忧,质量安全问题频发。这个现象也说明了铁矿含铁量现行检测方法不能满足铁矿选矿加工、贸易销售现场的实时和快速测试需要,因此高性能、智能化的检测技术亟待开发。本文在研究了常用铁矿含铁量测量方法基础上,结合嵌入式系统的相关技术,设计了一个磁铁矿含铁量快速实时测量系统。系统包括以电感传感器为核心的信息采集模块和以ARM7微处理器为核心的微处理模块。论文探讨了基于互感式电感传感器的磁铁矿含铁量测量方法,研究了基于电磁感应互感效应的铁矿含铁量快速测试原理,设计了铁矿含铁量信息采集模块,信号调理模块等,构建了以ARM为核心的智能传感器的信息控制系统。在实验室条件下对系统进行调试运行,通过对实验数据的处理,有效的论证的该系统的可行性。研制的互感式传感器测量系统具有实时测量,操做方便,不受环境影响,易于携带等优点;满足铁矿石选矿加工和销售过程的快速测试要求,能有效提高铁矿企业和钢铁企业的生产效率,促进整个行业的发展;具有一定的实用性和先进性,对提高我国铁矿产业向着高效率、智能化的方向发展有着重要的现实意义。
[Abstract]:Iron ore is an important strategic resource of our country, and it is also the largest import mineral resource of our country. With the development and expansion of iron ore trade, the rapid detection technology of iron ore content is more and more valued by the whole iron and steel industry. The price of iron ore is mainly determined by the iron content of iron ore and the content of harmful impurities in the ore. However, the quality of imported iron ore is worrying, quality and safety problems occur frequently. This phenomenon also shows that the current detection method of iron content in iron ore can not meet the real-time and rapid testing needs of iron ore dressing processing and trade field. Therefore, the high-performance, intelligent detection technology needs to be developed urgently. In this paper, a fast and real-time measurement system for iron content of magnetite is designed on the basis of studying the common methods of iron content measurement in iron ore and combining with the related technology of embedded system. The system includes information acquisition module based on inductor sensor and micro-processing module based on ARM7 microprocessor. In this paper, the measurement method of iron content in magnetite based on mutual inductance sensor is discussed, and the principle of rapid measurement of iron content in iron ore based on electromagnetic induction mutual inductance effect is studied. The iron content information collection module and signal conditioning module are designed. The information control system of intelligent sensor based on ARM is constructed. The system is debugged and run under laboratory conditions. Through the processing of experimental data, the feasibility of the system is proved effectively. The self-developed mutual inductance sensor measurement system has the advantages of real-time measurement, convenient operation, not affected by the environment, easy to carry and so on. It can effectively improve the production efficiency of iron ore enterprises and iron and steel enterprises and promote the development of the whole industry in order to meet the requirements of rapid testing of iron ore processing and sales process. It is practical and advanced to improve the development of iron ore industry in China in the direction of high efficiency and intelligence.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P575

【参考文献】