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冶金工程畢業(yè)設(shè)計(jì)-年產(chǎn)250萬噸煉鋼生鐵的高爐煉鐵車間工藝設(shè)計(jì)(文件)

 

【正文】 冷卻壁的選擇 爐容 /m3 爐底 爐缸 爐腹 爐身 下、中部 上部 3500 水冷 光面冷卻壁 鑲磚冷卻壁 板壁交錯(cuò)冷卻 鑲磚冷卻壁 光面冷卻壁和鑲磚冷卻壁尺寸 (1) 冷卻壁的長(zhǎng)度取 。表 11 列出了高爐用耐火磚尺寸通用磚的標(biāo)準(zhǔn)。 4 =( m3) )(12 2222 dDdDhV ??? ?=247。 ? =~~ ,本設(shè)計(jì)取β =83o 2)爐身高度( h4/m)。本設(shè)計(jì)取 爐腹高度: h2 = 2dD tanα =(m) 取 h2 =(m) 校核α: .632dD2htan 2 ?????? 則: a = ( 4) 爐喉 1) 爐喉直徑( d1/m)。 去風(fēng)口結(jié)構(gòu)尺寸 f=(m) ③ 爐缸高度: 第 10 頁(yè) h1 =hf + f =+ =(m) 取 h1 =(m) 3) 死鐵層的高度( h0/m) (1) 死鐵層高度爐喉高度: 根據(jù)大型高爐一般死鐵層高度為 1000— 2020mm 則: 取 死鐵層高度為: h0 =(m) (2)爐腰。 ① 渣口高度( hz/m): dCN pbh Tz ??? ??? ? 式中 b—— 生鐵產(chǎn)量波動(dòng)系數(shù),本設(shè)計(jì)取 ; p—— 生鐵日產(chǎn)量, t。 高爐總年產(chǎn)量的計(jì)算 本設(shè)計(jì)的高爐全年的生鐵任務(wù) P =250 萬噸 高爐有效容積的確定 ( 1) 由以上確定高爐全年的生鐵任務(wù)為: p=250(萬 t/a) ( 2) 計(jì)算高爐日產(chǎn)量 p )1(365 ??? MPp 式中 M— 高爐座數(shù),座,本設(shè)計(jì)為 3; ?— 高爐休風(fēng)率, %,本設(shè)計(jì)取 2%。 5 高爐車間設(shè)計(jì) ( 1) 設(shè)計(jì)采用 半島式 平面布置,其特點(diǎn)是 高爐有獨(dú)立的鐵運(yùn)停放線,運(yùn)輸不受周邊其他高爐影響,每座高爐為一個(gè)獨(dú)立的單位。 ( 2)先進(jìn)、經(jīng)濟(jì)、實(shí)用、可靠,裝備達(dá)到國(guó)內(nèi)先進(jìn)水平。 關(guān)鍵詞 :高爐,熱風(fēng)爐,噴煤,除塵 第 2 頁(yè) Annual output of of pig iorn blast furnace plant process Professional: METALLURGICAL ENGINEERING Student: YANG Pengcheng Instructor: WANG Qiming Abstract The initial design of an annual output of million tons of pig iron in blast furnace plant process,Effective volume of 3005m3 blast reading in a lot of relevant information based elements include eight most:Ore Groove System,Design of blast furnace body,Blower Type Design,Stove Design Process Calculation,Dust and gas cleaning system,The Iron Design,PCI System Design,Coke channel, mine shafts in bination,Sintered ore, pellets, ore scattered sifting, weighing scattered, dispersed coke sieving, weighing focus,Set small coke recovery system block,Furnace top with bellless top equipment,Set of two iron mouth, no residue, and 28 outlet port,Flattening out of Iron outlet platform, with mud bubble, opening machines and other equipment,With four internal bustion hot stove, the design air temperature is 1100 ℃ , for the blast furnace gas bustion stovBy flush slag slag treatment process, finished product of water fluxes using tape machine Sinotranse,Of gravity for coarse dust filter on the gas used to dry cleaning facilities, gas bag filter,Coal injection system uses direct injection parallel can charge injection, transport and injection medium using pressed design feature is the use of the concentrate into the furnace to improve the quality of raw material into the furnace. Gas by Dry Bag, saving, saving water, also can get highquality gas. Consider using the new method of water will end all Java technology, process short, less investment, reliable and secure. The design with three drawings: blast furnace brick map, masonry stove according to plan, shop flat blast furnace process layout. Keywords: Blast furnace, Stove, PCI, Cleaning System 第 3 頁(yè) 目錄 1 概述 ............................................................................................................................ 6 設(shè)計(jì)依據(jù) ................................................................................................................... 6 設(shè)計(jì)范圍及內(nèi)容 ................................................................................................. 6 設(shè)計(jì)原則 ............................................................................................................ 6 建設(shè)規(guī)模和主要技術(shù)指標(biāo) ................................................................................... 6 1 高爐本體設(shè)計(jì) .............................................................................................................. 8 高爐內(nèi)型設(shè)計(jì) ..................................................................................................... 8 高爐總年產(chǎn)量的計(jì)算 ................................................................................ 8 高爐有效容積的確定 ................................................................................ 8 高爐內(nèi)型尺寸確定 .................................................................................... 9 高爐內(nèi)襯設(shè)計(jì) ................................................................................................. 11 高爐爐喉鋼磚選型 ................................................................................12 高爐爐體冷卻設(shè)備 ...................................................................................12 外部噴水冷卻 .......................................................................................13 冷卻壁的選擇 .......................................................................................13 高爐爐體系統(tǒng) ...................................................................................................15 高爐冷卻水系統(tǒng) ...............................................................................................15 軟水系統(tǒng) ................................................................................................15 凈環(huán)水系統(tǒng) .............................................................................................15 軟水站系統(tǒng) ......................................................................................................16 爐體附屬設(shè)備 ...................................................................................................16 2 高爐鼓風(fēng)機(jī)選型及熱風(fēng)爐工藝計(jì)算 .............................................................................17 高爐鼓風(fēng)機(jī)工藝計(jì)算 .........................................................................................17 高爐入爐風(fēng)量與鼓風(fēng)機(jī)出口風(fēng)量 ...........................................................17 高爐鼓風(fēng)壓力 .......................................................................................17 高爐鼓風(fēng)機(jī)能力的確定(鼓風(fēng)機(jī)工況的計(jì)算) ........................................18
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