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10萬噸聚碳酸酯化工廠畢業(yè)設(shè)計(jì)-wenkub

2023-07-10 04:59:58 本頁面
 

【正文】 .............................................................................5 工藝流 程設(shè)計(jì) ...........................................................................................................6 生產(chǎn)工藝流程敘述 ....................................................................................................7 工藝流程設(shè)計(jì)參數(shù) ....................................................................................................8 工藝計(jì)算 ...........................................................................................................................8 物料衡算 ........................................................................................................................8 熱量衡算 ......................................................................................................................143 工藝計(jì)算與設(shè)備選型 ...........................................................................................................18 塔的工藝與選型 ............................................................................................................18 T101 .........................................................................................................................18 最小回流比的計(jì)算 ..................................................................................................19 全塔理論塔板數(shù) ......................................................................................................20 精餾段理論塔板數(shù) .................................................................................................21 板效率及實(shí)際塔板數(shù) ..............................................................................................22 塔和塔板主要工藝尺寸計(jì)算 ..................................................................................22 塔板負(fù)荷性能方程 ..................................................................................................26 氣流干燥器的工藝計(jì)算與選型 ....................................................................................31 過濾設(shè)備的工藝計(jì)算與選型 ........................................................................................354 設(shè)備型號一覽表 ...................................................................................................................38 泵的選擇 ........................................................................................................................38 容器、罐的選擇 ............................................................................................................39 冷凝器、再沸器的選擇 .................................................................................................405 廠制和廠址選擇 ....................................................................................................................42 廠制概況 .........................................................................................................................42 工廠組織 ..................................................................................................................42 工作制度 ..................................................................................................................42 人員配備 ..................................................................................................................42 廠址選擇 .........................................................................................................................43 建廠依據(jù) .................................................................................................................43 指導(dǎo)方針 .................................................................................................................43 選廠經(jīng)過 .................................................................................................................436 全廠總平面設(shè)計(jì) ...................................................................................................................44 總平面設(shè)計(jì)任務(wù)和步驟 .................................................................................................44 總平面設(shè)計(jì)任務(wù) ......................................................................................................44 工廠組織 ..................................................................................................................44 總平面設(shè)計(jì)原則 .............................................................................................................44 總平面布置評述 .............................................................................................................457 公用工程和輔助設(shè)計(jì)方案 ...................................................................................................478 設(shè)計(jì)結(jié)果 ...............................................................................................................................51 設(shè)計(jì)成果 .........................................................................................................................51 圖紙及比例 .....................................................................................................................51總 結(jié) .........................................................................................................................................52致 謝 .........................................................................................................................................53參 考 文 獻(xiàn) .............................................................................................................................54年產(chǎn) 10 萬噸聚碳酸酯化工廠設(shè)計(jì) 11 概述 設(shè)計(jì)依據(jù) 課題背景聚碳酸酯(簡稱PC)是分子鏈中含有碳酸酯基的高分子聚合物,根據(jù)酯基的結(jié)構(gòu)可分為脂肪族、芳香族、脂肪族-芳香族等多種類型。由于聚碳酸酯光學(xué)透明性好、抗沖擊強(qiáng)度高,并具有優(yōu)良的熱穩(wěn)定性、耐蠕變性、抗寒性、電絕緣性和阻燃性等特點(diǎn),使之在透明建筑板材、電子電器、光盤媒介、汽車工業(yè)等領(lǐng)域得到廣泛應(yīng)用。我國聚碳酸酯長期依賴國外進(jìn)口,2022 年進(jìn)口量為 23 萬噸,到 2022 年增至 萬噸,增長了近 4 倍,2022 年國內(nèi)聚碳酸酯的表觀消費(fèi)量接近 80 萬噸,未來幾年將保持 1015%的增長率。一家亞洲貿(mào)易商于表示,要使雙酚 A(BPA)市場上揚(yáng),至少在今后 6 個(gè)月以后。雖然新的環(huán)氧樹脂和聚碳酸酯(PC),生產(chǎn)裝置已于2022 年投運(yùn),但經(jīng)濟(jì)的下行趨勢和競爭的加劇,已大大擠壓了一些公司的邊際利潤,迫使一些生產(chǎn)商降低開工率或延長裝置停工期。中國石化集團(tuán)公司三井化學(xué)公司合資的,10 萬噸/年雙酚 A(BPA)裝置于 2022 年 12 月投產(chǎn)后,又使該地區(qū)新增了供應(yīng)量,預(yù)計(jì)雙酚A(BPA)價(jià)格一度會下跌至底線。 聚碳酸酯市場需求概況20 世紀(jì)末,世界聚碳酸酯的產(chǎn)量約 114 萬噸,聚碳酸酯按功能特性分為一系列品級,如通用級、透明級、醫(yī)藥食品級等。2022 年世界聚碳酸酯表觀消費(fèi)量 萬t,光學(xué)介質(zhì)是聚碳酸酯消費(fèi)增長最快的領(lǐng)域, 消費(fèi)比例占24%。亞洲地區(qū)
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