【正文】 ................................................................................................................................50 氧槍升降和更換機(jī)構(gòu) ......................................................................................................................53 副槍設(shè)計 ...........................................................................................................................................54 副槍的功能和要求 .........................................................................................................................54 11811811811811811811811844444444444444 第 4 頁 底部供氣元件設(shè)計 .................................................................................................................................. 55 底氣種類 ............................................................................................................................................55 供氣構(gòu)件的選擇 ...............................................................................................................................55 噴嘴數(shù)量及布置 ...............................................................................................................................55 5 轉(zhuǎn)爐煉鋼的生產(chǎn)制度 ......................................................................................................................................57 主要原材料的技術(shù)要求 ......................................................................................................................... 57 金屬料 .................................................................................................................................................57 造渣材料 ............................................................................................................................................58 氧化劑 .................................................................................................................................................59 裝料制度 .................................................................................................................................................... 60 供氧制度 .................................................................................................................................................... 61 供氧制度主要工藝參數(shù)。 .............................................................................................................61 氧槍操作 ............................................................................................................................................61 造渣制度 .................................................................................................................................................... 62 采用單雙渣操作 ...............................................................................................................................62 各種渣料用量計算及加入 .............................................................................................................63 爐渣調(diào)整： ........................................................................................................................................64 溫度制度 ................................................................................................................................................... 64 溫度控制原則 ...................................................................................................................................64 終點(diǎn)控制與出鋼 ...................................................................................................................................... 66 脫 氧合金化 ............................................................................................................................................... 66 脫氧合金化操作 ...............................................................................................................................66 影響合金元素吸收率的因素 .......................................................................................................67 精煉與連鑄 ............................................................................................................................................... 68 6 車間工藝布置 ..................................................................................................................................................68 車間生產(chǎn)工藝流程圖 ............................................................................................................................. 68 供應(yīng)系統(tǒng) ................................................................................................................................................... 69 轉(zhuǎn)爐煙氣凈化與回收系統(tǒng) .................................................................................................................... 71 爐下出鋼出渣系統(tǒng) .................................................................................................................................. 72 7 冶煉車間組成及車間布置 ..........................................................................................................................72 冶煉車間的組成和廠房的布置形式 ................................................................................................... 72 11811811811811811811811855555555555555 第 5 頁 車間的組成 ........................................................................................................................................72 主廠房的工藝布置 .................................................................................................................................. 73 原料跨間的布置 ...............................................................................................................................74 轉(zhuǎn)爐跨間的布置 ...................................................................................................................................... 75 精煉跨間的布置 .............