【正文】 年產(chǎn) 30萬(wàn)噸合成氨造氣工段工藝設(shè)計(jì) The Design of Producing Coal Gas about Synthesis of Ammonia 300000t/a 目 錄 摘要 ...................................................................................................................................I Abstract .......................................................................................................................... II 引言 .................................................................................................................................. 1 第 一 章 緒論 ................................................................................................................. 3 煤氣化發(fā)展史 .................................................................................................... 3 國(guó)內(nèi)外發(fā)展現(xiàn)狀 ................................................................................................ 4 第 二 章 生產(chǎn)方法的選擇 .......................................................................................... 5 生產(chǎn)方法的介紹 ................................................................................................. 5 固定床氣化法 ................................................................................................. 5 流化床氣化 ..................................................................................................... 5 氣流床氣化 ..................................................................................................... 6 生產(chǎn)方案的選擇及論證 .................................................................................... 6 第 三 章 常壓固定床間歇?dú)饣? ............................................................................ 8 固定床氣化法的特點(diǎn) ........................................................................................ 8 半水煤氣定義 .................................................................................................... 8 半水煤氣制氣原理 ............................................................................................ 8 煤氣發(fā)生爐構(gòu)造及氣化反應(yīng)的分區(qū) ............................................................. 8 制氣原理 ......................................................................................................... 9 生產(chǎn)半水煤氣對(duì)固體原料性能的要求 .......................................................... 10 間歇式制半水煤氣的工藝條件 ...................................................................... 11 生產(chǎn)流程的選擇及論證 .................................................................................. 12 間歇式氣化的工作循環(huán) .................................................................................. 13 間歇式制半水煤氣工藝流程 .......................................................................... 14 各主要設(shè)備簡(jiǎn)介 .............................................................................................. 15 煤氣發(fā)生爐 ................................................................................................... 15 燃燒室 ........................................................................................................... 15 廢熱鍋爐 ....................................................................................................... 16 洗氣箱 ........................................................................................................... 16 洗滌塔 ........................................................................................................... 16 煙囪 ............................................................................................................... 17 自動(dòng)機(jī) ........................................................................................................... 17 第四章 工藝計(jì)算 ...................................................................................................... 18 已知條件 .......................................................................................................... 18 物料及熱量衡算 .............................................................................................. 20 吹風(fēng)階段的計(jì)算 ........................................................................................... 20 制氣階段的計(jì)算 ........................................................................................... 22 總過(guò)程計(jì)算 ................................................................................................... 26 配氣計(jì)算 .......................................................................................................... 29 消耗定額 ........................................................................................................ 30 吹凈時(shí)間核算 .................................................................................................. 30 廢熱鍋爐的熱量衡算 ...................................................................................... 30 已知條件 ....................................................................................................... 30 熱量衡算 ....................................................................................................... 32 熱量平衡和總固體平衡 ............................................................................. 35 夾套鍋爐的物料及熱量衡算 .......................................................................... 35 已知條件 ....................................................................................................... 35 產(chǎn)氣量及消耗量計(jì)算 ................................................................................... 36 第五章 設(shè)備計(jì)算選型 ................................................................................................... 37 煤氣爐指標(biāo) ...................................................................................................... 37 煤氣臺(tái)數(shù)的確定 .............................................................................................. 38 空氣鼓風(fēng)機(jī)的選型及臺(tái)數(shù)確定 ...................................................................... 39 廢熱鍋爐的選型 .............................................................................................. 39