本文選題：FCS + 加藥電磁閥��； 參考：《西安科技大學(xué)》2015年碩士論文

【摘要】：加藥是鉬礦選礦浮選過程中非常重要的環(huán)節(jié)之一,直接影響著有色金屬鉬的浮選效率。鉬作為一種比較希少的有色金屬,其工業(yè)應(yīng)用非常廣泛,它是一種不可再生資源,出于對環(huán)境保護(hù)的需要也不允許我們浪費資源,所以提高有色金屬鉬的浮選效率有著非常重要的社會效益和經(jīng)濟(jì)效益。先進(jìn)的自動化控制系統(tǒng)在浮選過程中的有效應(yīng)用,是提高鉬礦選礦浮選水平的途徑之一,FCS(現(xiàn)場總線控制系統(tǒng))作為現(xiàn)在最先進(jìn)的自動化控制解決方案之一,有著非常強(qiáng)的優(yōu)勢,FCS結(jié)構(gòu)簡單、理念先進(jìn)、開放性強(qiáng)、可維護(hù)性高,同時FCS其理念涵蓋企業(yè)管理層、中間控制層和現(xiàn)場執(zhí)行層,使生產(chǎn)和管理有機(jī)結(jié)合提高了整個浮選工廠的管理和信息化水平。自動加藥系統(tǒng)其主要任務(wù)就是精確地控制加藥速度,其控制對象是各個加藥點的加藥電磁閥,控制原理是利用出口流原理控制加藥電磁閥在加藥周期內(nèi)的開關(guān)時間,其前題是必須保證加藥電磁閥所在藥劑箱的液面恒定在一個液位高度,同時在此液面高度下獲得單位時間內(nèi)本加藥電磁閥的最大加藥速度,然后通過比值關(guān)系計算出加藥電磁閥在加藥周期內(nèi)的開關(guān)時間,從而獲得目標(biāo)加藥速度。本文介紹FCS現(xiàn)場總線控制系統(tǒng)在金堆城百花嶺鉬礦選礦浮選自動加藥系統(tǒng)中的應(yīng)用,從應(yīng)用提出、需要分析、系統(tǒng)選型、設(shè)計、實施、調(diào)試、測試到最后項目完成,是一個有機(jī)統(tǒng)一的完整過程。具體設(shè)計內(nèi)容是根據(jù)需求分析確定任務(wù)與目標(biāo),對比分析現(xiàn)階段主流控制系統(tǒng)體系結(jié)構(gòu),根據(jù)任務(wù)與目標(biāo)的特點確定與選擇FCS作為本加藥系統(tǒng)的控制結(jié)構(gòu),然后分別從硬件系統(tǒng)、軟件系統(tǒng)、網(wǎng)絡(luò)系統(tǒng)三方面出發(fā)對自動加藥系統(tǒng)的實現(xiàn)進(jìn)行詳細(xì)說明和設(shè)計,然后對設(shè)計完成的自動加藥系統(tǒng)進(jìn)行了整機(jī)調(diào)試和全面測試,該系統(tǒng)硬件設(shè)備工作穩(wěn)定、可靠,軟件界面友好、易于操作和升級,各項技術(shù)指標(biāo)達(dá)到了設(shè)計要求。
[Abstract]:The addition of medicine is one of the most important links in the flotation process of molybdenum ore, which directly affects the flotation efficiency of non-ferrous molybdenum. Molybdenum, as a rare non-ferrous metal, is widely used in industry. It is a non-renewable resource, and it does not allow us to waste resources out of the need of environmental protection. Therefore, improving the flotation efficiency of non-ferrous molybdenum has very important social and economic benefits. The effective application of the advanced automatic control system in the flotation process is one of the ways to improve the flotation level of molybdenum ore dressing. FCS (Field bus Control system) is one of the most advanced automatic control solutions. FCS has a very strong advantage, such as simple structure, advanced concept, strong openness, high maintainability, and FCS concept covers management, intermediate control layer and field execution layer. The combination of production and management improves the management and information level of the whole floatation plant. The main task of the automatic dosing system is to control the dosing speed accurately. The control object is the solenoid valve of each dosing point, and the control principle is to control the switching time of the dosing solenoid valve during the dosing cycle by using the principle of outlet flow. The former problem is to ensure that the liquid level of the dosing solenoid valve is constant at a liquid level, and at the same time, the maximum dosing speed of the solenoid valve per unit time is obtained. Then the switching time of the solenoid valve during the dosing period is calculated by the ratio relation, and the target dosing speed is obtained. This paper introduces the application of FCS fieldbus control system in the automatic charging system of flotation of Bahualing molybdenum mine in Jinduicheng. The application puts forward, needs analysis, system selection, design, implementation, debugging, test and final project completion. Is an organic unity of the complete process. The specific design content is to determine the task and the target according to the demand analysis, to compare and analyze the current mainstream control system architecture, to determine and select FCS as the control structure of the drug feeding system according to the characteristics of the task and the target. Then the realization of automatic dosing system is described and designed in detail from three aspects of hardware system, software system and network system, and then the whole machine debugging and overall testing of the designed automatic dosing system are carried out. The hardware of the system is stable, reliable, friendly software interface, easy to operate and upgrade, and the technical specifications meet the design requirements.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD923;TD45

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