【正文】 on 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。 blast furnace pulverized coal injection。 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。 在此項技術(shù)產(chǎn)生的 一百多年 間， 發(fā)展卻相對緩慢，基本無進(jìn)展；直至 20世紀(jì) 60年代初，歐洲、中國、美國的一些工廠才陸續(xù)開始在高爐上試驗噴 煤。 第一部分前言中闡述了 高爐噴煤 的定義 ，就是指從高爐風(fēng)口向爐內(nèi)直接噴吹磨細(xì)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 。它是 一種調(diào)劑爐況的手段 ，也 改善爐缸工作狀態(tài)，是高爐穩(wěn)定順行 。 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 。在第一部分最后介紹了我國噴煤噴吹技術(shù)現(xiàn)狀，進(jìn)十幾年這項技術(shù)在國內(nèi)的進(jìn)步和存在的問題，還包括對 我國高爐發(fā)展前景 的展望。首先對 噴吹工藝及檢測點(diǎn)布置 進(jìn)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?dú)忾y、下錐形閥、上錐形閥、給料器和下煤球閥的分配進(jìn)行了比較細(xì)致的敘述并附圖對安裝位置進(jìn)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(jìn)行了描述。先介紹了 基本操作方式：全自動操作、手動操作和詳細(xì)摘要 IV 檢修操作，然后是主要進(jìn)行的操作過程總述（包括 煤粉從煤粉倉到中間罐倒罐控制，煤粉從中間罐到噴吹罐倒罐控制，煤粉從噴吹罐噴到高爐風(fēng)口中的控制，停止向高爐噴吹煤粉的控制，安全連鎖控制程序），最后詳細(xì)說明了具體操作過程。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(dá)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(jìn)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。 最后是停噴控制（發(fā)出停噴指令終止各“倒罐”操作，關(guān)噴吹罐下煤球閥，停給料器，關(guān)安全閥，關(guān)噴吹風(fēng)閥）和 對三罐及噴吹管道 的壓力、溫度的 安全連鎖控制。 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。s first industrial applications are based on the idea that in 1840 ~ 1845 in the French province of Bologna near the iron works to achieve the Isle of Man. This background leads to the topic of graduation PCI design automation control injection technology. The main topics of the blast furnace pulverized coal injection system to control the injection process, does not include the milling process. In the technologies used to produce more than one hundred years, the development is relatively slow, the basic lack of progress。s, Europe, China, the United States before some of the factory started in the blast furnace pulverized coal injection on the test. 7O at the end of the second oil crisis in the emergence of the blast furnace pulverized coal injection technology to speed up research and development, especially in Europe and 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。 Explorer injection, multibranch injection。 dense phase injection, dilute coal injection and oxygen injection machine, injection machine and other conventional forms of injection. Profile describes some of the more mature industrial production processes: 1, Germany KvTTNER process。 3, Japan39。 4, flow Kawasaki, Japan。 6 , mixedtype process。 2, the use of a large number of plasma pulverized coal injection。 4, tablets coal injection technology. Finally, in the first part of the status quo of China39。s outlook for blast furnace. The second most of the major coal injection on blast furnace automation control package. First point of injection and detection process carried out on the layout, including the choice of three cans of string emission requirements can injection valve, fluid valve, charge pressure valve are pressure valves, fire nitrogen valve, conical valve under , Detailed Summary VII the cone valve, under the coal feeder and the distribution of the ball valve were pared and described in detail on the installation drawings indicate the location, but also all the necessary measuring equipment (such as pressure, temperature, weight, gas content, etc.) , the required number, a description of the installation location. And then in the graph on the basis of the control process described injection. First introduced the basic mode of operation: fully automatic operation, manual operation, and maintenance operations, and then is a major operation carried out by Overview (including coal from the coal inverted position to the intermediate tank can control, to the pulverized coal injection in the middle