【正文】 Japan is in the practical application has been made a major breakthrough. Foreword to the first part of the definition of a blast furnace pulverized coal injection is from the blast furnace tuyere direct injection to the ground of the coal (anthracite, bituminous coal, or both, as well as a mixture of pulverized lignite), to replace the coke to the blast furnace to provide heat and reducing agent. Led by the definition of the meaning of the use of this technology, it replaces the lowcost coal and increasingly scarce expensive metallurgical coke, coking reduced so that the cost of blast furnace substantially reduced. It is a means of regulating the status of furnace, but also work to improve the hearth, Detailed Summary VI and is stable antegrade blast. And then introduced the basic process technology used, under the milling device to the distance from the blast furnace, coal stores, injection tank placement differences in the thickness pipeline injection, injection pressure is high or low concentrations of the size of transmission as well as different forms of spray, you can have a direct injection, indirect injection。 關(guān)鍵詞： PLC；高爐噴煤；傳感器 Detailed Summary V Detailed Summary Blast furnace pulverized coal injection technology in 1840 at S. M. Banks on the injection of coke and anthracite idea。噴吹罐加料：噴吹罐內(nèi)煤量顯示下限，自動發(fā)出允許加料信號，噴吹罐內(nèi)壓力達到設(shè)定值，中間罐“料滿”； 倒罐，關(guān)中間罐放散閥，開中間罐充壓閥，中間罐與噴吹罐壓差小于設(shè)定值時，關(guān)閉充壓閥，打開兩罐間均壓閥，開中間罐下錐形閥，開噴吹罐上錐形閥，開中間罐流 化閥，中間罐“料空”信號來后，進行下列操作，關(guān)中間罐流化閥，關(guān)中間罐下錐形閥，關(guān)噴吹罐上錐形閥，關(guān)中間罐充壓閥，關(guān)中間罐與噴吹罐間均壓閥，開中間罐放散閥，煤粉從中間罐到噴吹罐倒罐順序完成。首先對 噴吹工藝及檢測點布置 進行了講解，其中包括了所選用的三罐 串罐噴吹 所需放散閥、流化閥、充壓閥、均壓閥、滅火氮氣閥、下錐形閥、上錐形閥、給料器和下煤球閥的分配進行了比較細致的敘述并附圖對安裝位置進行說明，又對各種所需測量設(shè)備（如壓力、溫度、重量、氣體含量等）、所需數(shù)量、 安裝位置進行了描述。 簡介描述了 幾種較成熟的工業(yè)性生產(chǎn)流程 ： 德國KvTTNER流程 ； 美國阿姆科 (ARMCO)流程 ； 日本住友流程 ； 日本川崎流程 ； 盧森堡 Paul Wurth流程 ； 混合型流程 ； 7 英鋼聯(lián)粒煤噴吹流程 。 第一部分前言中闡述了 高爐噴煤 的定義 ，就是指從高爐風口向爐內(nèi)直接噴吹磨細了的煤粉（無煙煤、煙煤或兩者的混合煤粉以及褐煤），以代替焦炭向高爐提供熱量和還原劑 。 由此背景引出本次畢業(yè)設(shè)計的題目高爐噴煤噴吹技術(shù)的自動化控制。 關(guān)鍵詞： PLC； 高爐噴煤 ；傳感器 Abstract II Abstract The graduation project focused on the automatic control of blast furnace coal injection system, does not include coal grinding process control. Cntrol the process of automation and control, includingo coal powder storage warehouse, the middle tank,the injection tank, injection Explorer, frontend from the blast furnace coal injection powder distribution device to the branch pipe. The graduation project, a PCI only consider as a controlled injection sequence. The design includes: That the issue of background, origin, meaning, the main type of technology, at home and abroad PCI jet technology development prospects and the future development of. On the need for the sensors, valves, switches and other hardware carried out coal powder from the coal powder position to control the middle of the tank,pulverized coal injection in the middle tank to tank can back control from the pulverized coal injection into blast furnace tuyere spray cans of control, stop the injection control, the middle tank and the injection pressure control tank, coal stores, intermediate and spray cans blow tank temperature and pressure control of the security chain, hair spray, such as automatic measurement of the pressure control projects。摘 要 I 摘 要 本次畢業(yè)設(shè)計 主要闡述了高爐噴煤噴吹自動化控制系統(tǒng)，不包括制粉過程的控制，控制范圍是從煤粉倉、中間罐、噴吹罐、噴吹總管、由爐前煤粉分配器到噴吹支管的自動控制過程。 the design of the main selection of the PLC control system selection, hardware configuration options, I / O table prepared mapping hardware wiring work. KeyWords ： PLC。課題主要闡述了高爐噴煤系統(tǒng)的噴吹工藝控制，不包括制粉工藝。然后由定義引出了采用此項技術(shù)的意義，它 以低價的煤代替了日趨貧乏且價格昂貴的冶金焦，降低了焦化，使高爐煉鐵的成本大幅下降 。再后簡要介紹了幾種新噴煤工藝，包括： 富氧大噴煤 量技術(shù) ； 利 用 等離子大量噴吹煤粉； 復合噴吹 技術(shù)； 粒 煤噴吹技術(shù) 。然后在附圖的基礎(chǔ)上進行 噴吹控制過程描述。噴吹控制：前提條件得到高爐“允許噴吹”信號，噴吹罐內(nèi)料位不低于下限，滿足安全連鎖要求，檢查噴煤管路上手動閥門的狀態(tài)，人工輸入正常；噴吹控制，開噴吹風閥，開安全閥，開噴吹罐下煤球閥，開噴吹罐流化閥，啟動給料器。 the world39。 string injection cans and cans of injection。 2, the United States armco (ARMCO) process。 5, Luxembourg Paul Wurth process。 3, pound injection techniques。 to meet the above conditions can operate in open coal was under the cone valve position, open the middle of the coneshaped tank valve, Bleeding valve clearance warehouse coal, the coal flow position of valve, the middle tank full feed signal when the following closing of coal flow valve position, the valve emission coal warehouse, customs warehouse under the cone of pulverized coal valve off the middle of the coneshaped tank valve, coal from the coal warehouse cans down to Detailed Summary VIII the middle of the order of the end cans, cans in the middle of full feed position. Feed tank injection: injection volume of the tank showed that the lower limit of coal, to allow automatic feeding signal injection tank pressure settings to reach the middle tank full feed。 blast furnace pulverized coal injection。 繼電器 120VAC（ 6ES7 3221HH000AA0） ....................................................................................................... 30 PLC 接線圖（見附錄 D） ................................................................. 33 結(jié) 論 ......................................................................................................................... 34 參考文獻 ..................................................................................................................... 35 致 謝 ......................................................................................................................... 36 附錄 A 模擬量 I/O 表 .......................................................................................... 37 附錄 B 數(shù)字輸入量 I/O 表 .................................................................................. 39 附錄 C 數(shù)字輸出量 I/O 表 .................................................................................. 41 附錄 D PLC 接線圖 .......................................................................................