【正文】 設(shè)計(jì)年產(chǎn) 20 萬(wàn)噸楊木硫酸鹽法漿堿回收分廠 設(shè)計(jì)年產(chǎn) 20 萬(wàn)噸楊木硫酸鹽法漿堿回收分廠 畢 業(yè) 設(shè) 計(jì)（ 論 文） 題目 ： 設(shè)計(jì)年產(chǎn) 20 萬(wàn)噸楊木硫酸鹽法漿堿回收分廠 子題 ： 重點(diǎn)設(shè)計(jì)燃燒工段 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計(jì)（論文） I 摘 要 現(xiàn)代造紙企業(yè)通過(guò)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(duì)環(huán)境的污染。本設(shè)計(jì)特點(diǎn)是工藝成熟、穩(wěn)定，設(shè)備先進(jìn)且操作性和穩(wěn)定性強(qiáng)，國(guó)內(nèi)有關(guān)企業(yè)得到證實(shí)。 從蒸煮出來(lái)的黑液用鼓式置換洗漿機(jī)洗滌使黑液的提取率達(dá)到 98%,燃燒工段的補(bǔ)充加入的芒硝為每噸風(fēng)干漿補(bǔ)充純度為 90%的芒硝量為 32 ㎏，堿回收率高達(dá) %，自給率為 100%，燃燒熱效率 68%。蒸發(fā)工段采用 先進(jìn)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(jìn)爐燃燒，無(wú)須再蒸發(fā)，環(huán)保，節(jié)能。堿噴射爐采用單汽包無(wú)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(guò)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(duì)環(huán)境的污染，并且對(duì)燃燒熱量的回收，達(dá)到良好的環(huán)境效益，社會(huì)效益和經(jīng)濟(jì)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(jì)（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(jì)（論文） III 目 錄 摘 要 .................................................................................................................... I Abstract ..................................................................................................................... II 引 言 ....................................................................................................................1 第一章 總論 ............................................................................................................2 設(shè)計(jì)依據(jù) ...................................................................................................2 設(shè)計(jì)范圍 ...................................................................................................2 廠址選擇說(shuō)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(jì)算 .............................11 蒸煮實(shí)際用堿量的計(jì)算 ...............................11 蒸煮液中無(wú)機(jī)物含量的計(jì)算 ...........................11 全部蒸煮液中水分的計(jì)算 .............................12 蒸煮堿損失量的計(jì)算 .................................12 蒸煮過(guò)程平衡計(jì)算 ...................................12 洗滌工段物料衡算 ..................................................................................13 洗滌段堿損失的計(jì)算 .................................13 提取黑液量的計(jì)算 ...................................13 洗滌段出漿量的計(jì)算 .................................13 洗滌段的平衡計(jì)算 ...................................14 蒸發(fā)工段的物料衡算 ..............................................................................14 蒸發(fā)中堿損失的計(jì)算 .................................14 濃黑液固形物含量的計(jì)算 .............................14 蒸 發(fā)后濃黑液中水分的計(jì)算 ...........................15 蒸發(fā)段的平衡計(jì)算 ...................................15 濃黑液中各成分的計(jì)算 ...............................16 大連工業(yè)大學(xué) 20xx 屆本科生畢業(yè)設(shè)計(jì)（論文） IV 燃燒工段物料衡算 ..................................................................................16 熔融物成分的計(jì)算 ...................................17 燃燒工段的平衡計(jì)算 .................................18 苛化工段物料衡算 .................................................................................22 無(wú)機(jī)物平衡計(jì)算 .....................................23 苛化液體及堿平衡計(jì)算 ...............................25 燃燒工段熱量平衡計(jì)算 .........................................................................26 收入熱量的計(jì)算 .....................................26 消耗熱量計(jì)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(diǎn)車間設(shè)備選擇以及計(jì)算 .................................................................32 第五章 車間布置說(shuō)明 ..........................................................................................38 重點(diǎn)車間設(shè)備布置 .................................................................................38 重點(diǎn)車間布置說(shuō)明 ....................................38 主要設(shè)備的安排及主要說(shuō)明 ............................39