【正文】 ...............................................31 抽氣 設(shè)備 ....................................................................................................31 含塵污水處理 ...................................................................................................315 轉(zhuǎn)爐煉鋼的生產(chǎn)工藝 設(shè)計(jì) ....................................................................................32 煉鋼用原材料 ..................................................................................................32 金屬料 ........................................................................................................32 非金屬料 ....................................................................................................34 裝料制度 ...........................................................................................................35 裝料次序 ....................................................................................................35 裝入量 ........................................................................................................35 裝入 量方法 ................................................................................................36 裝料操作 ....................................................................................................36 供氧制度 ...........................................................................................................36 氧槍 ............................................................................................................36 供氧操作 ....................................................................................................37 造渣制度 ...........................................................................................................38 爐渣堿度的控制與石灰加入量的確定 ....................................................38 爐渣粘度的控制 ........................................................................................39 爐渣氧化性的控制 ....................................................................................39 泡沫渣及其控制 ........................................................................................40 放渣及留渣操作 ........................................................................................40 溫度制度 ...........................................................................................................40 出鋼溫度的確定 ........................................................................................40 冷卻劑及其加入量的確定 ........................................................................41 終點(diǎn)控制和出鋼 ...............................................................................................42 精 煉工藝 ...........................................................................................................42 連鑄工藝 ...........................................................................................................43 鋼 水準(zhǔn)備 ....................................................................................................43 連鑄工藝 ....................................................................................................436 車間主要設(shè)備的選擇 .............................................................................................45 原料跨 ...............................................................................................................45 金屬料供應(yīng)及設(shè)備 ....................................................................................45 散裝料供應(yīng)及設(shè)備 ....................................................................................47 轉(zhuǎn)爐跨 ...............................................................................................................49 鋼包需 要量計(jì)算 ........................................................................................49 渣罐和渣罐車數(shù)量的確定 ........................................................................49 精煉設(shè)備 ...........................................................................................................50 連鑄跨 ...............................................................................................................50 板坯 的生產(chǎn) ................................................................................................50 方坯的生產(chǎn) ................................................................................................53 其他工藝參數(shù)及設(shè)備的確定 ....................................................................54 制氧機(jī)的選擇 ...................................................................................................577 主廠房工藝布置 .....................................................................................................59 原料跨跨間布置 ...............................................................................................59 轉(zhuǎn)爐跨間的布置 ...............................................................................................60 精煉設(shè)備的布置 ...............................................................................................66 連鑄設(shè)備的布置 ...............................................................................................668 煉鋼車間人員編制 ................................................................................................699 煉鋼車間經(jīng)濟(jì)指標(biāo) ................................................................................................73參考文 獻(xiàn) ....................................................................................................................74致謝 ............................................................................................................................75專 題 ............................................................................................................................761 煉鋼車間設(shè)計(jì)方案根據(jù)設(shè)計(jì)任務(wù)書的要求及各種設(shè)計(jì)條件提出初步設(shè)計(jì)思路，這是對(duì)設(shè)計(jì)工作一個(gè)框架式的設(shè)定。方案的確定要求設(shè)計(jì)合理，能順利生產(chǎn)。 主要鋼種及產(chǎn)品方案本設(shè)計(jì)主要生產(chǎn)普碳鋼、低合金鋼，優(yōu)質(zhì)碳素結(jié)構(gòu)鋼，彈簧鋼，也可根據(jù)市場(chǎng)的要求進(jìn)行靈活調(diào)整。根據(jù)畢業(yè)設(shè)計(jì)任務(wù)書中年產(chǎn) 320 萬(wàn)噸鑄坯的要求，確定其產(chǎn)品大綱。見表 11。表 11 產(chǎn)品大綱鋼種 代表型號(hào) 年產(chǎn)鋼量 所占比例 鑄坯斷面 長(zhǎng)寬 定長(zhǎng)尺寸普碳鋼 Q235A 60 萬(wàn)噸 % 150150mm 9000mm低合金鋼 Q295 60 萬(wàn)噸 % 150150mm 9000mm優(yōu)質(zhì)碳素結(jié)構(gòu)鋼 20Mn 100 萬(wàn)噸 % 1801000mm 9000mm彈簧鋼 65Mn 100 萬(wàn)噸 % 220220