【正文】 ................................... 20 乙炔對聚合反應(yīng)的影響 ................................................................................................. 20 聚氯乙烯生產(chǎn)工藝（懸浮聚合）流程簡述 ........................................................................... 21 聚氯乙烯生產(chǎn)工藝流程（懸浮聚合）操作步驟 ................................................................. 21 4 工藝計算 ................................................................................................................................... 22 生產(chǎn)規(guī)模 ........................................................................................................................... 22 生產(chǎn)時間 ........................................................................................................................... 22 聚氯乙烯配方 .................................................................................................................... 22 聚氯乙烯懸浮聚合操作周期 ............................................................................................... 22 湖南科技大學(xué)本科生畢業(yè)設(shè)計（論文） 3 相關(guān)技術(shù)指標(biāo) .................................................................................................................... 23 相關(guān)控制指標(biāo) .................................................................................................................... 23 工藝計算 ............................................................................................................................ 23 計算依 ........................................................................................................................... 23 低沸塔 ........................................................................................................................ 24 高沸塔 ............................................................................................................................ 26 聚合釜物料衡算 .............................................................................................................. 29 熱量衡算 ........................................................................................................................ 32 5 聚合釜的設(shè)計 ............................................................................................................................ 34 生產(chǎn)周期或生產(chǎn)批數(shù) ......................................................................................................... 34 根據(jù)年產(chǎn)量確定每批進 料量 ............................................................................................... 34 選擇反應(yīng)器裝料系數(shù) ......................................................................................................... 34 計算反應(yīng)器體積 ................................................................................................................ 35 聚合釜壁厚的計算 ............................................................................................................. 35 計算厚度 ..................................................................................................................... 35 校核水壓實驗強度 ....................................................................................................... 36 夾套的設(shè)計 ....................................................................................................................... 36 夾套直徑和高度的確定 ................................................................................................ 36 夾套的材料和壁厚 ....................................................................................................... 36 校核水壓實驗強度： ................................................................................................... 37 攪拌裝置 [10]的設(shè)計 ...................................................................................................... 37 傳熱裝置的校核 ................................................................................................................ 38 釜側(cè)的給熱系數(shù) .......................................................................................................... 38 夾套側(cè)的傳熱系數(shù)的計算 ............................................................................................ 40 已知聚合釜的壁厚 ....................................................................................................... 40 忽略污垢的熱阻 .......................................................................................................... 40 底座的選擇 ....................................................................................................................... 41 聚合釜技術(shù)參數(shù) ................................................................................................................ 41 人孔的設(shè)計 ..................................................................................................................... 42 6 干燥裝置的設(shè)計 ......................................................................................................................... 42 干燥流程的確定 ................................................................................................................ 42 干燥器的物料衡算和熱量衡算 ........................................................................................... 43 物料衡算 ..................................................................................................................... 43 氣流干燥段空氣和物料出 口溫度的確定： .................................................................... 45 氣流干燥段熱量衡算： ................................................................................................ 45 預(yù)熱器的熱負(fù)荷和加熱蒸汽消耗量 .............................................................................. 47 氣流干燥 器的設(shè)計 ............................................................................................................. 47 氣流干燥管直徑的計算 ................................................................................................ 47 氣流干燥管高度的計算 ................................................................................................ 48 沸騰床干燥器的設(shè)計 ......................................................................................................... 49 6