【正文】 111 學(xué) 號： HEBEI UNITED UNIVERSITY畢 業(yè) 設(shè) 計 說 明 書GRADUATE DESIGN設(shè)計題目： 學(xué)生姓名：專業(yè)班級：學(xué) 院：指導(dǎo)教師： 摘 要I摘 要萘是有機化學(xué)工業(yè)的重要原料，是煤焦油中含量最多，提取價值很高的重要組分,廣泛用于生產(chǎn)染料、增塑劑、合成纖維、橡膠、樹脂和各種化學(xué)助劑等。本文結(jié)合單爐雙塔工藝對年處理 12 萬噸焦油加工廠工業(yè)萘制取工段進行了設(shè)計，首先由泡點法確定初餾塔和精餾塔的塔頂、塔底的操作壓力和溫度。計算塔的工藝負荷，確定塔的塔板數(shù)，有效高度和直徑。初餾塔塔徑為1600mm，塔高為 35500mm。精餾塔塔徑為 1200mm，塔高為 27900mm。經(jīng)過工藝比較選用浮閥型塔板并對其進行流體力學(xué)驗算，塔板均選用 VⅠ型浮閥塔板。其次，對塔進行機械校核塔的設(shè)計，使其滿足當?shù)氐淖匀粭l件和設(shè)計條件。最后通過熱量衡算計算出換熱器和管式爐的換熱量并進行了選型，選用原料與工業(yè)萘換熱器型號為 G600Ⅳ。酚油冷凝器選用 S=4m2 換熱器即可，工業(yè)萘冷凝器選用 S=25m2 換熱器即可，管式爐的型號為 。并在15/?此基礎(chǔ)上畫出主要設(shè)備裝配圖、工藝流程圖及車間設(shè)備平面布置圖。關(guān)鍵詞：工業(yè)萘；單爐雙塔工藝；物料衡算；熱量衡算AbstractIIAbstractNaphthalene is an important anic chemical industrial raw materials，the content of coal tar is the most important to extract highvalue ponents．It is widely used in the production of dyes，plasticizers ，synthetic fiber，rubber ，resin and chemical additives．In this paper，single furnace twin columns process has been studied，120220 tons tar processing industry39。s naphthalene preparation section of the preliminary design has determined. First,by the bubble point method to determine the operating pressure and temperature of the top and bottom of primary tower and the process load of tower,determine the plate number of the tower、 effective height and tower diameter of primary tower is 1600mm,the tower height is tower diameter of distillation is 1200mm,the tower height is a parative choose the float valve type trays,and check its hydrodynamics,trays are made of VⅠtype valve ,conduct mechanical check to it,so as to satisfy the local natural conditions and design ,calculate the heat transfer of heat exchanger and tube furnace by heat balance,and conducted a the G600Ⅳ60 as the heat exchanger model of raw materials and industrial oil condenser choose S=4m2 ,industrial naphthalene condenser choose S= model of the tube furnace is .Draw it on this basis the main 152/?equipment assembly drawings，process flow diagram and plant equipment，plans and diagrams．Keywords Industrial naphthalene；singlefurnace twincolumns process；material balance；heat balance 目 錄III目 錄摘 要 .............................................................................................................................IABSTRACT.......................................................................................................................II引 言 ...........................................................................................................................V1 文獻綜述 .................................................................................................................1 煤焦油加工工藝 ...............................................................................................1 煤焦油的發(fā)展現(xiàn)狀 .......................................................................................1 煤焦油加工技術(shù)的發(fā)展方向 .......................................................................2 煤焦油產(chǎn)品深加工的發(fā)展方向 ...................................................................3 我國煤焦油加工業(yè)業(yè)目前存在的主要問題 ...............................................3 工業(yè)萘的生產(chǎn)簡介及發(fā)張前景 ..........................................................................3 工業(yè)萘的發(fā)展概況 .......................................................................................4 工業(yè)萘蒸餾技術(shù) ...........................................................................................5 精餾法制萘工藝 ..................................................................................................6 單爐雙塔連續(xù)精餾的工藝流程 ...................................................................6 單爐單塔流程 ................................................................................................7 雙爐雙塔流程 ...............................................................................................8 精餾法制萘工藝 .........................................................................................102 設(shè)計內(nèi)容 ................................................................................................................11 工藝流程的選擇 ...............................................................................................11 物料衡算 ............................................................................................................11 計算依據(jù) .....................................................................................................11 初餾塔物料衡算 .........................................................................................11 精餾塔物料衡算 .........................................................................................13 塔的工藝計算 ....................................................................................................16 初餾塔的工藝計算 .....................................................................................16 精餾塔的工藝計算 .....................................................................................21 塔的工藝負荷計算 ............................................................................................25目 錄IV 初餾塔工藝負荷計算 .................................................................................25 精餾塔工藝負荷的計算 .............................................................................28 塔尺寸的計算 ....................................................................................................31 初餾塔尺寸的計算 .....................................................................................31 精餾塔尺寸的計算 .....................................................................................34 塔板工藝尺寸計算 ............................................................................................36 初餾塔塔板主要工藝尺寸的計算 .............................................................36 精餾塔塔板主要工藝尺寸的計算 .............................................................39 塔板流體力學(xué)驗算 ............................................................................................42 初餾塔塔板流體力學(xué)的驗算 .....................................................................42 精餾塔塔板流體力學(xué)的驗算 ...........................