發(fā)布時(shí)間：2018-10-14 14:49

【摘要】：含鐵量是衡量磁鐵礦品質(zhì)的重要指標(biāo)之一,近年來(lái),隨著市場(chǎng)需求的激增以及選礦生產(chǎn)規(guī)模的不斷擴(kuò)大,其快速測(cè)試方法的研究逐漸受到鐵礦產(chǎn)品加工企業(yè)和鋼鐵生產(chǎn)企業(yè)的關(guān)注。鐵礦石含鐵量測(cè)試通常采用化學(xué)分析法,化學(xué)分析方法準(zhǔn)確、可靠,但要求用特定的試劑、特定的試驗(yàn)人員、按照特定的試驗(yàn)程序、在特定的環(huán)境中完成,不能滿足現(xiàn)代選礦測(cè)試過(guò)程中批量化、自動(dòng)化等要求。因此,為實(shí)現(xiàn)鐵礦加工、生產(chǎn)以及銷售過(guò)程中的含鐵量檢測(cè)的實(shí)時(shí)與快速性,保證鋼鐵生產(chǎn)加工中原材料品質(zhì),磁鐵礦含鐵量的快速測(cè)試研究已經(jīng)迫在眉睫。本文根據(jù)磁鐵礦含鐵量測(cè)量方法的現(xiàn)狀,對(duì)基于自感式電感傳感器的磁鐵礦含鐵量測(cè)量方法進(jìn)行研究,設(shè)計(jì)了一個(gè)磁鐵礦含鐵量快速實(shí)時(shí)測(cè)量系統(tǒng)。系統(tǒng)包括以電感傳感器為核心的信息采集模塊和以PIC單片機(jī)為核心的微處理模塊。由于傳感器輸出信號(hào)小且電感傳感器的輸出性能易受溫度、濕度和緊實(shí)率的影響,本文通過(guò)實(shí)驗(yàn)分析磁鐵礦緊實(shí)率、溫度和濕度等關(guān)鍵影響因素對(duì)傳感器輸出性能的影響,定量的解出各種參數(shù)相對(duì)于輸出電壓的回歸模型,并檢驗(yàn)回歸模型以及回歸系數(shù)的顯著性,綜合計(jì)算磁鐵礦的含鐵量。自感式電感傳感器測(cè)量磁鐵礦含鐵量系統(tǒng)具有實(shí)時(shí)測(cè)量、操作便捷、體積小巧、受環(huán)境影響小等優(yōu)點(diǎn)。從發(fā)展方向上看,為了滿足世界鋼鐵產(chǎn)業(yè)的發(fā)展需求,帶動(dòng)我國(guó)鐵礦產(chǎn)業(yè)向著高效率、智能化的方向發(fā)展,研究自感式磁鐵礦含鐵量快速測(cè)量技術(shù)有著重大的宏觀意義。
[Abstract]:Iron content is one of the important indexes to measure the quality of magnetite. In recent years, with the rapid increase of market demand and the expansion of mineral processing scale, The research of its rapid test method has gradually attracted the attention of iron ore product processing enterprises and iron and steel production enterprises. Iron ore content testing is usually done by chemical analysis, which is accurate and reliable, but requires specific reagents, specific testers, specific test procedures, and specific environments. It can not meet the requirements of batch and automation in the process of modern mineral processing and testing. Therefore, in order to realize the real-time and rapid detection of iron content in the process of iron ore processing, production and sale, and to ensure the quality of raw materials in iron and steel production and processing, it is urgent to study the iron content of magnetite. According to the present situation of iron content measurement method in magnetite, this paper studies the measurement method of iron content in magnetite based on self-inductance sensor, and designs a fast real-time measurement system for iron content in magnetite. The system includes an information acquisition module based on inductance sensor and a micro-processing module based on PIC microcontroller. Because the output signal of the sensor is small and the output performance of the inductance sensor is easily affected by temperature, humidity and compactness, this paper analyzes the effect of the key factors, such as magnetite compactness, temperature and humidity, on the output performance of the sensor through experiments. The regression model of various parameters relative to the output voltage is solved quantitatively, and the regression model and the significance of the regression coefficient are tested, and the iron content of magnetite is calculated synthetically. The system of measuring iron content in magnetite with self-inductance sensor has the advantages of real-time measurement, convenient operation, small volume and small environmental influence. From the point of view of development direction, in order to meet the development demand of the world iron and steel industry and drive the iron ore industry of our country to develop in the direction of high efficiency and intelligence, it is of great macroscopic significance to study the rapid measurement technology of iron content of self-sensing magnetite.
【學(xué)位授予單位】：哈爾濱理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD981;TP212

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本文編號(hào)：2270795