【正文】 .................................................. 2 處理工藝概述 ......................................................................................................... 3 設(shè)計(jì)依據(jù) ........................................................................................................................ 4 廠址選擇 ........................................................................................................................ 5 廠址選擇的重要性 ................................................................................................. 5 廠址選擇的基本要求 ............................................................................................. 5 本次廠址選擇 ......................................................................................................... 6 設(shè)計(jì)規(guī)模與生產(chǎn)制度 .................................................................................................... 7 設(shè)計(jì)規(guī)模 ................................................................................................................. 7 生產(chǎn)制度 ................................................................................................................. 7 原料及產(chǎn)品規(guī)格 ................................................................................................................ 8 主要原料規(guī)格及技術(shù)指標(biāo) ..................................................................................... 8 產(chǎn)品規(guī)格 ................................................................................................................. 8 經(jīng)濟(jì)核算表 ...................................................................................................................... 8 第 2 章 工藝設(shè)計(jì)與計(jì)算 ...................................................................................................... 10 工藝原理 ...................................................................................................................... 10 工藝路線的選擇 .......................................................................................................... 10 工藝流程簡(jiǎn)述 ...............................................................................................................11 工藝流程示 意圖 ..................................................................... 錯(cuò)誤 !未定義書(shū)簽。 關(guān)鍵詞： 丙烯腈 ； 廢水 ； 有毒物質(zhì)； Aspen；工藝路線 齊齊哈爾大學(xué)畢業(yè)設(shè)計(jì)（論文 ） II Abstract In the design, the preliminary design of the eighty thousand tons/year acrylonitrile wastewater treatment section was pleted. First of all, the significance and functions of acrylonitrile and the development of the situation at home and abroad were introduced. In recent years, acrylonitrile rise in the domestic and foreign, Promote the production of acrylonitrile. At the same time, Pollution problems are also being increasingly prominent in the production of acrylonitrile process. Especially in the synthesis and purification workshop of acrylonitrile. In the process will produce a large number of toxic substances wastewater such as hydrogen cyanide and acetonitrile. According to the difference of boiling point of toxic substances in the waste water. In the technology choice, Through the access relevant information and literature. Toxic substances concentrate and degradate with foureffect evaporationthe biodegradation, Based on the previous information, the plant design was designed by empirical data, he content of the process, Including material balance and heat balance. And the major equipment was simulated by Aspen and calculated selection. Last draw the main equipment figure with Auto CAD and flow chart with control point plan and the process of the workshop layout was drawn by hand. Key words: Acrylonitrile。 首先 ， 說(shuō)明書(shū) 簡(jiǎn)單 介紹了產(chǎn)品 丙烯腈 的意義與作用以及在國(guó)內(nèi)外的發(fā)展現(xiàn)狀。 近年來(lái) 隨著 丙烯腈在國(guó)內(nèi)外需求量的攀升，極大的推動(dòng)了丙烯腈的生產(chǎn)， 但是 ， 在 丙烯腈 生產(chǎn) 過(guò)程 中的污染問(wèn)題也在日益凸顯， 尤其 是 在丙烯腈 的合成和精制車(chē)間 ,將會(huì)產(chǎn)生大量含有氫氰 酸、 低聚物以及氰化物的高濃度 有毒物質(zhì)的廢水， 根據(jù)廢水中有毒物質(zhì)的沸點(diǎn)不同， 在工藝選擇上，通過(guò)查閱相關(guān)資料和文獻(xiàn)，確定了用 四效蒸發(fā) —生物降解法 對(duì)有毒物質(zhì)進(jìn)行濃縮和降解 。 Wastewater。 工藝流程簡(jiǎn)述 ....................................................................................................... 12 工藝參數(shù) ...................................................................................................................... 12 齊齊哈爾大學(xué)畢業(yè)設(shè)計(jì)（論文 ） IV 物料衡算 ...................................................................................................................... 12 物料衡算的意義與作用 ....................................................................................... 12 物料衡算的方法與步驟 ....................................................................................... 13 物料衡算 ............................................................................................................... 13 物料衡算表 ........................................................................................................... 21 熱量衡算 ...................................................................................................................... 21 熱量衡算的意義 ................................................................................................... 21 熱量衡算及所需媒介的量 ................................................................................... 22 蒸發(fā)器的傳熱面積 ............................................................................................... 24 熱量衡算表 ........................................................................................................... 24 Aspen 模擬 ................................................................................................................... 25 第 3 章 設(shè)備選型 .................................................................................................................... 31 選型的原則 .................................................................................................................. 31 技術(shù)性評(píng)價(jià)原則 ...................................................................................................