基于AM2305湿度传感器的铁精矿水分测量系统的研究

发布时间：2019-01-30 20:13

【摘要】：铁精矿作为我国铁矿行业的主流产品,其主要成分元素铁、硫、磷等的品位含量以及含水量指标的检测分析至关重要。其中,铁矿产品的水分含量的高低直接影响到产品的销售价格。目前铁矿含水量的测试分析通常采用实验室内加热称重方法完成测试,而在铁精矿交易及现场销售的过程中,通常买卖双方口头承诺铁精矿的水分含量。为保证铁精矿交易公平公正的进行,对铁精矿水分实时检测仪器的研究具有非常重要现实意义与市场价值。本文研究了铁精矿水分的实时测量方法,以AM2305电容式湿度传感器设计信息采集装置为核心来实现铁精矿水分的实时监测,探讨了电容式湿度传感器的感湿机理和基于电容式湿度传感器的铁精矿水分快速测量方法。设计了基于上述信息采集装置框架下的铁精矿水分测量系统,完成了信息采集装置和测量探头的设计、加工和组装,给出了基于STC89C55单片机的电容式铁精矿水分测量系统方案,并完成了单片机控制系统软件编程及调试。在此基础上,进行了样品配置,实验数据采集、分析与标定,建立铁精矿水分和湿度之间的数学关系模型,证实了采用AM2305电容式湿度传感器测量铁精矿水分含量的测量方法的可行性。论文研究测量方法适合铁矿选矿和销售等工矿环境条件,设计的铁精矿水分快速测量系统成本低、易操作、适合选矿过程中的在线监测或销售过程中的快速实时测量。水分测量仪种类繁多,市场开发潜力参差不齐。开发并实现铁精矿水分实时或在线检测系统,这对降低劳动强度、提升工作效率、节省人力资源、保证交易公平及实现生产管理自动化具有非常重要的现实意义,市场应用前景广阔。
[Abstract]:Iron concentrate is the mainstream product of iron ore industry in China. It is very important to detect and analyze the grade content and water content of iron, sulfur and phosphorus, the main components of iron concentrate. Among them, the water content of iron ore products directly affects the sales price of the products. At present, the water content of iron ore is usually measured by heating weighing method in laboratory, and in the process of dealing and selling iron concentrate, the buyer and seller usually promise the water content of iron concentrate orally. In order to ensure the fair and fair trade of iron concentrate, it is of great practical significance and market value to study the instrument for measuring iron concentrate moisture in real time. In this paper, the real time measurement method of iron concentrate moisture is studied. The AM2305 capacitive humidity sensor is used as the core to realize the real time monitoring of iron concentrate moisture. The humidity sensing mechanism of capacitive humidity sensor and the rapid measurement method of iron concentrate moisture based on capacitive humidity sensor are discussed. The measurement system of iron concentrate moisture based on the above information acquisition device is designed. The design, processing and assembly of the information acquisition device and the measuring probe are completed. The scheme of capacitive iron concentrate moisture measurement system based on STC89C55 microcontroller is presented. The software programming and debugging of MCU control system are completed. On this basis, the mathematical model of the relationship between moisture and humidity of iron concentrate is established by sampling, collecting, analyzing and calibrating the experimental data. The feasibility of measuring water content of iron concentrate by AM2305 capacitive humidity sensor is confirmed. The method of measurement is suitable for the environmental conditions of iron ore dressing and selling. The designed rapid measuring system for iron concentrate moisture is low cost and easy to operate. It is suitable for on-line monitoring in the process of ore dressing or rapid real-time measurement in the process of sale. Moisture meter variety, market development potential is uneven. The development and implementation of a real-time or on-line measuring system for iron concentrate moisture is of great practical significance in reducing labor intensity, improving work efficiency, saving human resources, ensuring fair transaction and realizing automation of production management. The market application prospect is broad.
【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】：2015
【分类号】：TD951;TP212

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