【正文】 ...........................................................................27 晶種分解工序技術(shù)條件及指標(biāo) : .................................................................................................31 產(chǎn)品過濾與分級(jí) ...........................................................................................................................31 產(chǎn)品氫氧化鋁焙燒 .........................................................................................................................32 母液蒸發(fā)和一水碳酸鈉苛化 .......................................................................................................35 第 3 章 物料平衡計(jì)算 .................................................................................................................................36 主要生產(chǎn)技術(shù)指標(biāo) ............................................................................................................................36 物料平衡計(jì)算 ....................................................................................................................................36 損失計(jì)算 .........................................................................................................................................36 循環(huán)溶液計(jì)算 ..................................................................................................................................39 漿液的稀釋和沉降 .........................................................................................................................41 鋁酸鈉溶液的分解 .........................................................................................................................45 氫氧化鋁漿液的沉降 .....................................................................................................................46 產(chǎn)品氫氧化鋁的洗滌與焙燒 ........................................................................................................47 苛化 ..................................................................................................................................................48 蒸發(fā)和蘇打分離 .............................................................................................................................51 氧化鋁物料小時(shí)流程表 ....................................................................................................................53 第四章 高壓溶出熱平衡計(jì)算 ....................................................................................................................54 3 有關(guān)參數(shù)的確定 ................................................................................................................................54 原礦漿的比重與比熱 .....................................................................................................................54 熱平衡計(jì)算中有關(guān)參數(shù)的確定 ....................................................................................................54 各級(jí)自蒸汽器自蒸發(fā)水量的計(jì)算 ...................................................................................................55 各級(jí)預(yù)熱器的熱平衡計(jì)算 ................................................................................................................56 換熱器熱負(fù)載的計(jì)算 ........................................................................................................................58 礦漿流量的確定 .............................................................................................................................58 熱負(fù)載計(jì)算 .....................................................................................................................................58 總的傳熱系數(shù)的確定 .....................................................................................................................60 各傳熱面積的計(jì)算 ............................................................................................................................60 第五章 高壓溶出車間設(shè)備選擇與計(jì)算 ....................................................................................................62 保溫停留罐設(shè)計(jì)計(jì)算 ........................................................................................................................62 保溫罐個(gè)數(shù) .....................................................................................................................................62 溶出保溫罐設(shè)計(jì)計(jì)算 .....................................................................................................................62 端蓋 的設(shè)計(jì) .....................................................................................................................................63 高壓泵 ................................................................................................................................................64 泵的流量的確定 .............................................................................................................................64 泵的壓力的計(jì)算 .............................................................................................................................64 局部阻力 .........................................................................................................................................65 整個(gè)輸送系統(tǒng)總的阻力 .................................................................................................................65 保溫材料 ............................................................................................................................................65 保溫停留罐保溫材料的計(jì)算 ........................................................................................................65 保溫材料的用量 ................................................................................................................................66 保溫罐保溫的計(jì)算 .........................................................................................................................66 第六章 經(jīng)濟(jì)技術(shù)分析 ...............................................................................................................................68 成本核算的條件 ..................................................................................................................