【正文】 設(shè)計年產(chǎn) 20 萬噸楊木硫酸鹽法漿堿回收分廠 設(shè)計年產(chǎn) 20 萬噸楊木硫酸鹽法漿堿回收分廠 畢 業(yè) 設(shè) 計（ 論 文） 題目 ： 設(shè)計年產(chǎn) 20 萬噸楊木硫酸鹽法漿堿回收分廠 子題 ： 重點設(shè)計燃燒工段 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計（論文） I 摘 要 現(xiàn)代造紙企業(yè)通過堿回收新技術(shù)的應(yīng)用，提高化學(xué)藥品回收率和燃燒熱效率，以減少對環(huán)境的污染。本設(shè)計特點是工藝成熟、穩(wěn)定，設(shè)備先進且操作性和穩(wěn)定性強，國內(nèi)有關(guān)企業(yè)得到證實。 從蒸煮出來的黑液用鼓式置換洗漿機洗滌使黑液的提取率達到 98%,燃燒工段的補充加入的芒硝為每噸風(fēng)干漿補充純度為 90%的芒硝量為 32 ㎏，堿回收率高達 %，自給率為 100%，燃燒熱效率 68%。蒸發(fā)工段采用 先進的黑液高濃結(jié)晶技術(shù)，使黑液由洗滌工段的 17%升至 72%，直接進爐燃燒，無須再蒸發(fā)，環(huán)保，節(jié)能。堿噴射爐采用單汽包無臭技術(shù)，采用大面積的省煤器，靜電除塵率為 98%，防止煙氣二次污染。 通過堿回收新技術(shù)的應(yīng)用，明顯的提高了化學(xué)藥品的回收率，減少了對環(huán)境的污染，并且對燃燒熱量的回收，達到良好的環(huán)境效益，社會效益和經(jīng)濟效益。 關(guān)鍵詞 ： 堿回收；黑液高濃結(jié)晶技術(shù)；大面積省煤器。 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計（論文） II Abstract The modern paper making business improve the new technical of the chemistry recovery reduce the environmental pollution through raising the chemicals recovery rate and hot efficiencies. This design， s characters is mature、stability, the equipments are rumrunners and operability and the stabilities are strong, the confirmation has been prove by the business enterprise. The black liquid withdraw the rate to attain with the drum type displacement from the black liquid that steam to boil out98%,In burning section the pure degree measures to 32 ㎏ for 90% long grass nitric, the chemistry recovery rate is up to %, the selfsufficient rate is 100%, the burnable hot efficiency 68%. In evaporation section, the black liquid from wash away dirt 17% of the work segment rises to 72%, direct enter stove bustion, need not to evaporate again, environmental protection and economize on energy. Static electricity in addition to the dust rate for 98%, keep smoke from annoys to pollute two times. Through the new technical application of the chemistry recovery, it has raised the recovery rate of the chemicals obviously, reduce the environmental pollution, and attain the good environment performance, social performance and economic performance. Keywords： The chemistry recovery。 High and thick technique of black liquid。 The saving coal machine of big areas 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計（論文） III 目 錄 摘 要 .................................................................................................................... I Abstract ..................................................................................................................... II 引 言 ....................................................................................................................1 第一章 總論 ............................................................................................................2 設(shè)計依據(jù) ...................................................................................................2 設(shè)計范圍 ...................................................................................................2 廠址選擇說明 ...........................................................................................2 第二章 生產(chǎn)方法及生產(chǎn)流程論述 ........................................................................4 生產(chǎn)方法論述 ..............................................................................................4 生產(chǎn)流程論述 ...........................................................................................5 燃燒工段 ............................................6 苛化工段 .............................................8 白泥回收工段 .........................................8 第三章 物料平衡及熱量衡算 ................................................................................10 蒸煮工 段物料衡算 ..................................................................................10 蒸煮用絕干木片量的計算 .............................11 蒸煮實際用堿量的計算 ...............................11 蒸煮液中無機物含量的計算 ...........................11 全部蒸煮液中水分的計算 .............................12 蒸煮堿損失量的計算 .................................12 蒸煮過程平衡計算 ...................................12 洗滌工段物料衡算 ..................................................................................13 洗滌段堿損失的計算 .................................13 提取黑液量的計算 ...................................13 洗滌段出漿量的計算 .................................13 洗滌段的平衡計算 ...................................14 蒸發(fā)工段的物料衡算 ..............................................................................14 蒸發(fā)中堿損失的計算 .................................14 濃黑液固形物含量的計算 .............................14 蒸 發(fā)后濃黑液中水分的計算 ...........................15 蒸發(fā)段的平衡計算 ...................................15 濃黑液中各成分的計算 ...............................16 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計（論文） IV 燃燒工段物料衡算 ..................................................................................16 熔融物成分的計算 ...................................17 燃燒工段的平衡計算 .................................18 苛化工段物料衡算 .................................................................................22 無機物平衡計算 .....................................23 苛化液體及堿平衡計算 ...............................25 燃燒工段熱量平衡計算 .........................................................................26 收入熱量的計算 .....................................26 消耗熱量計算 .......................................27 供生產(chǎn)蒸汽量 .......................................29 自身回用熱量 .......................................29 熱功效率 ...........................................30 第四章 設(shè)備選型 ..................................................................................................32 設(shè)備選擇的原則 .....................................................................................32 重點車間設(shè)備選擇以及計算 .................................................................32 第五章 車間布置說明 ..........................................................................................38 重點車間設(shè)備布置 .................................................................................38 重點車間布置說明 ....................................38 主要設(shè)備的安排及主要說明 ............................39