年產(chǎn)10000噸檸檬酸發(fā)酵工廠設(shè)計(jì)
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- (最終版)年產(chǎn)10000噸檸檬酸發(fā)酵工廠設(shè)計(jì)摘 要........................................................................................................................I
ABSTRACT...................................................................................................................I
第1章 緒論..................................................................................................................1
1.1引言....................................................................................................................1
1.1.1總論...........................................................................................................1
1.1.2項(xiàng)目建設(shè)的背景和意義...........................................................................1
第2章 廠址選擇..........................................................................................................4
2.1廠址選擇的依據(jù)................................................................................................4
2.2廠址選擇的條件................................................................................................4
2.2.1交通和物流...............................................................................................4
2.2.2基礎(chǔ)設(shè)施...................................................................................................5
2.2.3人力資源...................................................................................................5
2.2.4氣候環(huán)境...................................................................................................5
2.2.5地形地質(zhì)...................................................................................................6
2.2.6政策優(yōu)勢(shì)...................................................................................................6
2.2.7基礎(chǔ)設(shè)施優(yōu)勢(shì)...........................................................................................6
第3章 廠區(qū)總平面設(shè)計(jì)..............................................................................................7
3.1廠區(qū)總平面設(shè)計(jì)原則........................................................................................7
3.2廠區(qū)總平面設(shè)計(jì)................................................................................................7
3.3年產(chǎn)10000噸檸檬酸工廠廠區(qū)總平面布局圖................................................7
第4章 生產(chǎn)工藝設(shè)計(jì).................................................................................................9
4.1生產(chǎn)方案...........................................................................................................9
4.2工藝流程...........................................................................................................9
4.3基本步驟..........................................................................................................10
4.3.1原料預(yù)處理.............................................................................................10
4.3.2玉米粉調(diào)漿和液化.................................................................................10
4.3.3發(fā)酵.........................................................................................................10
4.3.4提取和精制.............................................................................................10
4.3.5成品包裝.................................................................................................11
4.4工藝特點(diǎn)..........................................................................................................11
第5章 工藝計(jì)算........................................................................................................13
5.1物料衡算..........................................................................................................13
5.1.1全廠總物料衡算主要內(nèi)容.....................................................................13
5.1.2工藝技術(shù)指標(biāo)和基礎(chǔ)數(shù)據(jù).....................................................................13
5.2原輔料消耗及中間產(chǎn)品衡算..........................................................................13
5.3熱量衡算..........................................................................................................18
5.3.1計(jì)算步驟.................................................................................................18
5.3.2年產(chǎn)10000噸檸檬酸發(fā)酵工廠熱量衡算表.........................................20
5.4水量衡算..........................................................................................................20
5.4.1計(jì)算步驟.................................................................................................20
5.4.2年產(chǎn)10000噸檸檬酸工廠水量衡算表.................................................22
5.5電量衡算..........................................................................................................22
5.5.1計(jì)算步驟.................................................................................................22
5.5.2年產(chǎn)10000噸檸檬酸工廠電量衡算表.................................................25
第6章 設(shè)備計(jì)算與選型............................................................................................26
6.1主要設(shè)備生產(chǎn)能力的計(jì)算和選型..................................................................26
6.2年產(chǎn)10000噸檸檬酸工廠主要設(shè)備一覽表..................................................38
第七章 其他................................................................................................................39
7.1生產(chǎn)車間平面布置..........................................................................................39
7.1.1生產(chǎn)車間工藝設(shè)計(jì).................................................................................39
7.1.2生產(chǎn)車間布置圖.....................................................................................39
7.1.3生產(chǎn)車間非工藝設(shè)計(jì).............................................................................39
7.1.4車間設(shè)計(jì)對(duì)衛(wèi)生的要求.........................................................................40
7.2公共工程與輔助工程......................................................................................41
7.2.1公共工程.................................................................................................41
7.2.2輔助工程.................................................................................................42
7.3企業(yè)組織與勞動(dòng)定員......................................................................................42
7.3.1企業(yè)組織.................................................................................................42
7.3.2勞動(dòng)定員.................................................................................................43
7.4三廢處理與綜合利用......................................................................................44
7.4.1環(huán)境保護(hù).................................................................................................44
7.4.2廢渣利用.................................................................................................45
7.4.3廢水處理.................................................................................................45
7.4.4沼氣處理和利用.....................................................................................46
7.5投資概算..........................................................................................................46
7.5.1總投資估算.............................................................................................47
7.5.2資金來源和計(jì)劃用款.............................................................................49
7.6經(jīng)濟(jì)效益衡算..................................................................................................49
7.6.1產(chǎn)品成本估算.........................................................................................49
7.6.2副產(chǎn)品收入估算.....................................................................................50
7.6.3綜合效益收入估算.................................................................................50
7.6.4回收率估算.............................................................................................50
第8章 結(jié)論................................................................................................................51
參考文獻(xiàn)......................................................................................................................52
摘 要
檸檬酸是食品與化工行業(yè)所必需的重要化工原料，被廣泛應(yīng)用于食品與化工
行業(yè)。當(dāng)今檸檬酸的主要獲取方式是微生物發(fā)酵，尤其是黑曲霉發(fā)酵。我國(guó)的檸
檬酸產(chǎn)量達(dá)到50萬噸，檸檬酸及檸檬酸鹽出口總量約40萬噸，年均出口增長(zhǎng)量
為20%~30%。隨著全世界經(jīng)濟(jì)的發(fā)展和人民生活水平提高，檸檬酸市場(chǎng)需求也在快速增長(zhǎng)因此，檸檬酸市場(chǎng)就全世界而言具有較大的發(fā)展?jié)摿Α?br />
本項(xiàng)目采用玉米為原料，主要沿用玉米粉碎液化去渣后的淀粉乳進(jìn)行發(fā)酵的
工藝，這一工藝?yán)矛F(xiàn)用菌種不變，保持了現(xiàn)在的發(fā)酵水平，而于此同時(shí)由于玉
米渣的再利用，大大降低了生產(chǎn)成本。另外，以玉米為原料，可使廢水的排放量
大幅度減少,有機(jī)污染物濃度也大幅度降低。在提取工段，本項(xiàng)目采用國(guó)內(nèi)先進(jìn)的“吸交法”提取檸檬酸工藝，提取率由原來的75%左右提高到80%，提高了產(chǎn)品質(zhì)量，降低了生產(chǎn)成本。“吸交法”比原“鈣鹽法”增加效益1000元/噸，生產(chǎn)實(shí)現(xiàn)自動(dòng)化程序控制，消除了生產(chǎn)廢渣CaSO4，只產(chǎn)生少量廢水，節(jié)約能耗，有利于環(huán)境保護(hù)。經(jīng)過核算，本項(xiàng)目每年可產(chǎn)檸檬酸10000t、玉米渣400t、菌絲體680t、(NH4)2SO4580t，年創(chuàng)收益3091.5萬元，回收期約為4年。
總之，該項(xiàng)目符合可持續(xù)發(fā)展的原則，盡最大可能進(jìn)行清潔生產(chǎn)，同時(shí)可以
有效的促進(jìn)地方經(jīng)濟(jì)發(fā)展，解決農(nóng)民買糧難的問題，增加農(nóng)民收入，是一個(gè)富民
強(qiáng)市，具有較高附加值和投資回報(bào)率的項(xiàng)目。...
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