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影響油脂精煉吸附脫色的因素有哪些油(you)脂(zhi)(zhi)(zhi)精(jing)煉(lian)過(guo)程中脫(tuo)(tuo)色(se)(se)(se)在(zai)(zai)于(yu)獲(huo)(huo)(huo)(huo)得(de)油(you)脂(zhi)(zhi)(zhi)色(se)(se)(se)澤的(de)(de)(de)(de)改善(shan)(shan)和(he)(he)為(wei)(wei)油(you)脂(zhi)(zhi)(zhi)脫(tuo)(tuo)臭提供合格的(de)(de)(de)(de)原(yuan)料油(you)品。因(yin)此(ci),油(you)脂(zhi)(zhi)(zhi)精(jing)煉(lian)過(guo)程中脫(tuo)(tuo)色(se)(se)(se)油(you)脂(zhi)(zhi)(zhi)色(se)(se)(se)度(du)(du)(du)標準的(de)(de)(de)(de)制(zhi)訂(ding),需(xu)要根(gen)據(ju)油(you)脂(zhi)(zhi)(zhi)以(yi)(yi)(yi)(yi)及(ji)(ji)其制(zhi)品的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)要求,以(yi)(yi)(yi)(yi)及(ji)(ji)力求在(zai)(zai)低的(de)(de)(de)(de)損(sun)耗下(xia)獲(huo)(huo)(huo)(huo)得(de)油(you)色(se)(se)(se)在(zai)(zai)大限度(du)(du)(du)上的(de)(de)(de)(de)改善(shan)(shan)為(wei)(wei)度(du)(du)(du)。1,油(you)的(de)(de)(de)(de)品質(zhi)以(yi)(yi)(yi)(yi)及(ji)(ji)前處(chu)理(li)油(you)中的(de)(de)(de)(de)天然色(se)(se)(se)素(su)較(jiao)易(yi)脫(tuo)(tuo)除,而油(you)料儲存和(he)(he)油(you)脂(zhi)(zhi)(zhi)生產過(guo)程中形成的(de)(de)(de)(de)新生色(se)(se)(se)素(su)或(huo)者(zhe)因(yin)為(wei)(wei)氧化(hua)而固定了的(de)(de)(de)(de)色(se)(se)(se)素(su),一般比較(jiao)難脫(tuo)(tuo)除。由此(ci)可見(jian),提高毛油(you)質(zhi)量(liang)(liang)(liang),避免油(you)脂(zhi)(zhi)(zhi)在(zai)(zai)加工環(huan)節中的(de)(de)(de)(de)氧化(hua),才(cai)能(neng)確保脫(tuo)(tuo)色(se)(se)(se)效(xiao)(xiao)果。油(you)脂(zhi)(zhi)(zhi)精(jing)煉(lian)脫(tuo)(tuo)色(se)(se)(se)前處(chu)理(li)的(de)(de)(de)(de)油(you)脂(zhi)(zhi)(zhi)質(zhi)量(liang)(liang)(liang)對脫(tuo)(tuo)色(se)(se)(se)效(xiao)(xiao)率(lv)的(de)(de)(de)(de)影(ying)(ying)響也甚為(wei)(wei)重要。當待脫(tuo)(tuo)色(se)(se)(se)油(you)中殘留膠質(zhi)、皂粒和(he)(he)懸(xuan)浮物雜質(zhi)時(shi)(shi),這些(xie)雜質(zhi)會占據(ju)吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)的(de)(de)(de)(de)一部分活化(hua)表(biao)面,從而降低脫(tuo)(tuo)色(se)(se)(se)效(xiao)(xiao)率(lv)或(huo)者(zhe)增(zeng)加吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)用(yong)量(liang)(liang)(liang)。2, 吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)和(he)(he)用(yong)量(liang)(liang)(liang)吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)是(shi)影(ying)(ying)響脫(tuo)(tuo)色(se)(se)(se)效(xiao)(xiao)果的(de)(de)(de)(de)關鍵(jian)的(de)(de)(de)(de)因(yin)素(su)。不同種(zhong)類的(de)(de)(de)(de)吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)具(ju)有(you)各自的(de)(de)(de)(de)特(te)性(xing)(xing),根(gen)據(ju)油(you)脂(zhi)(zhi)(zhi)脫(tuo)(tuo)色(se)(se)(se)的(de)(de)(de)(de)具(ju)體(ti)要求,合理(li)選(xuan)擇吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji),才(cai)能(neng)經濟地(di)獲(huo)(huo)(huo)(huo)得(de)脫(tuo)(tuo)色(se)(se)(se)效(xiao)(xiao)果。活性(xing)(xing)白(bai)土是(shi)油(you)脂(zhi)(zhi)(zhi)脫(tuo)(tuo)色(se)(se)(se)常用(yong)的(de)(de)(de)(de)吸(xi)附(fu)(fu)(fu)(fu)(fu)劑(ji)(ji)。不同規格的(de)(de)(de)(de)活性(xing)(xing)白(bai)土所(suo)表(biao)現(xian)出的(de)(de)(de)(de)性(xing)(xing)能(neng)各異。其活性(xing)(xing)度(du)(du)(du)受到原(yuan)土、酸(suan)處(chu)理(li)、水(shui)分等因(yin)素(su)的(de)(de)(de)(de)影(ying)(ying)響。在(zai)(zai)期望獲(huo)(huo)(huo)(huo)得(de)高活性(xing)(xing)度(du)(du)(du)的(de)(de)(de)(de)同時(shi)(shi),還應(ying)該考(kao)慮到這些(xie)因(yin)素(su)對油(you)品酸(suan)值、過(guo)濾速率(lv)以(yi)(yi)(yi)(yi)及(ji)(ji)油(you)損(sun)率(lv)的(de)(de)(de)(de)影(ying)(ying)響。某種(zhong)油(you)品在(zai)(zai)特(te)定脫(tuo)(tuo)色(se)(se)(se)條件下(xia)的(de)(de)(de)(de)適活性(xing)(xing)白(bai)土以(yi)(yi)(yi)(yi)及(ji)(ji)添(tian)加量(liang)(liang)(liang)一般可通過(guo)實驗室小樣試驗加以(yi)(yi)(yi)(yi)優選(xuan)。了解詳情 →2023-09-26
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軋胚機的保養與事故處理軋(ya)(ya)(ya)胚(pei)機(ji)是(shi)油(you)(you)廠的(de)(de)(de)(de)(de)(de)關(guan)鍵設備之一(yi)(yi)(yi)(yi),售價(jia)高(gao)、機(ji)體(ti)笨重(zhong)(zhong)、修理費用高(gao)。所以(yi)在生產過(guo)程中,要(yao)精(jing)心(xin)保(bao)養以(yi)延長(chang)使(shi)用壽命,這對于增(zeng)(zeng)加(jia)效(xiao)(xiao)益(yi)和(he)降低成本等(deng)都(dou)有很重(zhong)(zhong)要(yao)的(de)(de)(de)(de)(de)(de)意義。軋(ya)(ya)(ya)胚(pei)機(ji)經過(guo)長(chang)期運轉(zhuan),往往發(fa)生壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)面兩(liang)邊(bian)磨損較為(wei)嚴重(zhong)(zhong)的(de)(de)(de)(de)(de)(de)現(xian)象,從而影(ying)響(xiang)軋(ya)(ya)(ya)胚(pei)效(xiao)(xiao)果(guo)。所以(yi)每周(zhou)都(dou)應(ying)該(gai)安排一(yi)(yi)(yi)(yi)定時(shi)間(jian),用砂輪或(huo)者其他辦(ban)法將軋(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)兩(liang)邊(bian)部(bu)分磨一(yi)(yi)(yi)(yi)磨。如果(guo)對油(you)(you)料(liao)清雜不(bu)好,石頭、小鐵(tie)塊等(deng)雜質(zhi)進(jin)入(ru)軋(ya)(ya)(ya)胚(pei)機(ji)內,往往造成輥(gun)(gun)(gun)(gun)(gun)(gun)面的(de)(de)(de)(de)(de)(de)點蝕,致使(shi)光(guang)滑的(de)(de)(de)(de)(de)(de)輥(gun)(gun)(gun)(gun)(gun)(gun)面出現(xian)凹坑(keng),軋(ya)(ya)(ya)出的(de)(de)(de)(de)(de)(de)料(liao)胚(pei)厚(hou)薄(bo)不(bu)均,影(ying)響(xiang)出油(you)(you),這時(shi)就得更換壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun),將有凹坑(keng)的(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)重(zhong)(zhong)新車(che)平。壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)輥(gun)(gun)(gun)(gun)(gun)(gun)面積(ji)硬(ying)度(du)增(zeng)(zeng)大(da)(da),車(che)削(xue)加(jia)工(gong)比(bi)較困難。軋(ya)(ya)(ya)胚(pei)機(ji)有時(shi)發(fa)生不(bu)吃(chi)料(liao)或(huo)者吃(chi)料(liao)少(shao)的(de)(de)(de)(de)(de)(de)現(xian)象。會嚴重(zhong)(zhong)影(ying)響(xiang)軋(ya)(ya)(ya)胚(pei)機(ji)的(de)(de)(de)(de)(de)(de)效(xiao)(xiao)率。軋(ya)(ya)(ya)胚(pei)機(ji)振動大(da)(da)是(shi)引起(qi)壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)不(bu)吃(chi)料(liao)的(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)個(ge)(ge)重(zhong)(zhong)要(yao)原因。抖(dou)動的(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun),不(bu)斷(duan)(duan)地給油(you)(you)料(liao)一(yi)(yi)(yi)(yi)個(ge)(ge)向上的(de)(de)(de)(de)(de)(de)力(li)(li),使(shi)得油(you)(you)料(liao)被壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)拋起(qi)、落(luo)下(xia),始終(zhong)在兩(liang)個(ge)(ge)壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)之間(jian)跳上跳下(xia)。發(fa)生壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)不(bu)吃(chi)料(liao)時(shi)候,應(ying)該(gai)找出原因,絕不(bu)能將光(guang)滑的(de)(de)(de)(de)(de)(de)輥(gun)(gun)(gun)(gun)(gun)(gun)面人為(wei)地刨些(xie)坑(keng),以(yi)此(ci)增(zeng)(zeng)加(jia)摩擦力(li)(li)而使(shi)之吃(chi)料(liao)。斷(duan)(duan)軸和(he)掉(diao)輥(gun)(gun)(gun)(gun)(gun)(gun)邊(bian)。為(wei)了保(bao)證軋(ya)(ya)(ya)胚(pei)的(de)(de)(de)(de)(de)(de)要(yao)求,在軋(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)不(bu)平直度(du)逐漸加(jia)大(da)(da)時(shi),就要(yao)增(zeng)(zeng)加(jia)彈(dan)簧壓(ya)(ya)(ya)力(li)(li)。這樣使(shi)軸承處(chu)總(zong)是(shi)承受一(yi)(yi)(yi)(yi)個(ge)(ge)徑(jing)向力(li)(li),一(yi)(yi)(yi)(yi)旦(dan)料(liao)流(liu)不(bu)均勻,特(te)別是(shi)進(jin)入(ru)鐵(tie)器和(he)石子等(deng)硬(ying)物,使(shi)兩(liang)個(ge)(ge)壓(ya)(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)發(fa)生碰撞,這瞬時(shi)的(de)(de)(de)(de)(de)(de)沖擊力(li)(li)是(shi)相當大(da)(da)的(de)(de)(de)(de)(de)(de)。多次的(de)(de)(de)(de)(de)(de)沖擊的(de)(de)(de)(de)(de)(de)結果(guo),超過(guo)軸的(de)(de)(de)(de)(de)(de)疲勞限度(du),就會發(fa)生斷(duan)(duan)軸或(huo)者掉(diao)邊(bian)現(xian)象。所以(yi)應(ying)該(gai)強調,操作(zuo)時(shi)調節軋(ya)(ya)(ya)距的(de)(de)(de)(de)(de)(de)彈(dan)簧不(bu)要(yao)太緊,不(bu)要(yao)進(jin)入(ru)鐵(tie)器,料(liao)流(liu)要(yao)均勻以(yi)及(ji)不(bu)要(yao)斷(duan)(duan)料(liao)等(deng),都(dou)是(shi)防止此(ci)類事故(gu)發(fa)生的(de)(de)(de)(de)(de)(de)有效(xiao)(xiao)措施。了解詳情 →2023-09-26
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什么是層蝶式汽提塔?層(ceng)蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔是(shi)國內(nei)(nei)浸(jin)出(chu)油(you)(you)廠(chang)使(shi)用(yong)較(jiao)多(duo)的(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)種(zhong)汽(qi)(qi)(qi)(qi)(qi)提設(she)備。若(ruo)按照水蒸(zheng)(zheng)(zheng)(zheng)氣對(dui)混(hun)(hun)合(he)油(you)(you)的(de)(de)(de)(de)(de)(de)(de)汽(qi)(qi)(qi)(qi)(qi)提次(ci)數,層(ceng)蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔可分為單(dan)段式(shi)(shi)(shi)和(he)雙(shuang)段式(shi)(shi)(shi)兩種(zhong)。雙(shuang)段蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔,它主(zhu)要有(you)(you)頂蓋、上(shang)(shang)(shang)塔體(ti)(ti)、中(zhong)(zhong)塔體(ti)(ti)、下(xia)(xia)(xia)塔體(ti)(ti)以及底(di)蓋所組(zu)(zu)成(cheng)。在(zai)(zai)(zai)上(shang)(shang)(shang)塔體(ti)(ti)和(he)下(xia)(xia)(xia)塔體(ti)(ti)內(nei)(nei)各有(you)(you)6-9組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)。每(mei)(mei)組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)都由滯流盤(pan)(pan)、錐形(xing)(xing)分配碟(die)(die)(die)和(he)環形(xing)(xing)分配碟(die)(die)(die)組(zu)(zu)成(cheng)。上(shang)(shang)(shang)、下(xia)(xia)(xia)塔體(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)外殼均裝(zhuang)有(you)(you)夾套(tao)(tao),在(zai)(zai)(zai)夾套(tao)(tao)中(zhong)(zhong)通入(ru)343-441kPa的(de)(de)(de)(de)(de)(de)(de)加(jia)熱蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)對(dui)塔內(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)合(he)油(you)(you)進(jin)(jin)行間接(jie)(jie)加(jia)熱。中(zhong)(zhong)塔體(ti)(ti)和(he)底(di)盤(pan)(pan)內(nei)(nei)各有(you)(you)一(yi)(yi)組(zu)(zu)直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴入(ru)裝(zhuang)置(zhi)。這組(zu)(zu)裝(zhuang)置(zhi)由集油(you)(you)盤(pan)(pan)、導流管(guan)、中(zhong)(zhong)心(xin)管(guan)、直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴管(guan)組(zu)(zu)成(cheng)。來(lai)自(zi)第二(er)蒸(zheng)(zheng)(zheng)(zheng)發器(qi)的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)合(he)油(you)(you),進(jin)(jin)入(ru)層(ceng)蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔的(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)油(you)(you)管(guan)之后(hou),自(zi)上(shang)(shang)(shang)而(er)下(xia)(xia)(xia)逐(zhu)次(ci)流經每(mei)(mei)一(yi)(yi)組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)。到達中(zhong)(zhong)塔體(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)集油(you)(you)盤(pan)(pan)底(di)的(de)(de)(de)(de)(de)(de)(de)阻攔,被(bei)汽(qi)(qi)(qi)(qi)(qi)提出(chu)的(de)(de)(de)(de)(de)(de)(de)溶劑(ji)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)和(he)水蒸(zheng)(zheng)(zheng)(zheng)氣繞過(guo)(guo)集油(you)(you)盤(pan)(pan)向上(shang)(shang)(shang)移動(dong),而(er)油(you)(you)被(bei)阻留落(luo)下(xia)(xia)(xia)。之后(hou),混(hun)(hun)合(he)油(you)(you)又(you)沿著下(xia)(xia)(xia)塔體(ti)(ti)內(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)各組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)逐(zhu)次(ci)流下(xia)(xia)(xia),到達底(di)蓋內(nei)(nei),在(zai)(zai)(zai)直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴入(ru)裝(zhuang)置(zhi)中(zhong)(zhong)又(you)一(yi)(yi)次(ci)被(bei)汽(qi)(qi)(qi)(qi)(qi)提,汽(qi)(qi)(qi)(qi)(qi)提出(chu)的(de)(de)(de)(de)(de)(de)(de)溶劑(ji)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)和(he)水蒸(zheng)(zheng)(zheng)(zheng)氣自(zi)下(xia)(xia)(xia)而(er)上(shang)(shang)(shang)逐(zhu)級通過(guo)(guo)每(mei)(mei)一(yi)(yi)組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)的(de)(de)(de)(de)(de)(de)(de)空隙,與(yu)碟(die)(die)(die)盤(pan)(pan)表(biao)面(mian)流下(xia)(xia)(xia)的(de)(de)(de)(de)(de)(de)(de)液(ye)膜狀(zhuang)混(hun)(hun)合(he)油(you)(you)充分接(jie)(jie)觸(chu),使(shi)混(hun)(hun)合(he)油(you)(you)得到進(jin)(jin)一(yi)(yi)步(bu)汽(qi)(qi)(qi)(qi)(qi)提。到達頂部(bu)的(de)(de)(de)(de)(de)(de)(de)混(hun)(hun)合(he)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)通過(guo)(guo)出(chu)氣管(guan)進(jin)(jin)入(ru)汽(qi)(qi)(qi)(qi)(qi)提冷凝(ning)器(qi)。經汽(qi)(qi)(qi)(qi)(qi)提后(hou)的(de)(de)(de)(de)(de)(de)(de)浸(jin)出(chu)毛(mao)油(you)(you)從底(di)部(bu)的(de)(de)(de)(de)(de)(de)(de)出(chu)油(you)(you)管(guan)通過(guo)(guo)液(ye)封裝(zhuang)置(zhi)排出(chu)。層(ceng)蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔結構(gou)較(jiao)為簡單(dan),操作方(fang)便,工(gong)藝效果(guo)好(hao)(hao)。但是(shi)必須注意的(de)(de)(de)(de)(de)(de)(de):每(mei)(mei)一(yi)(yi)組(zu)(zu)碟(die)(die)(die)盤(pan)(pan)的(de)(de)(de)(de)(de)(de)(de)制造質量(liang)和(he)是(shi)否水平安裝(zhuang),將影響混(hun)(hun)合(he)油(you)(you)液(ye)膜的(de)(de)(de)(de)(de)(de)(de)形(xing)(xing)成(cheng)與(yu)氣液(ye)相接(jie)(jie)觸(chu)的(de)(de)(de)(de)(de)(de)(de)面(mian)積;直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)含水,會(hui)造成(cheng)毛(mao)油(you)(you)中(zhong)(zhong)磷脂(zhi)的(de)(de)(de)(de)(de)(de)(de)析出(chu);直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)壓(ya)力過(guo)(guo)高或者用(yong)量(liang)過(guo)(guo)大,會(hui)形(xing)(xing)成(cheng)液(ye)泛現象(xiang);混(hun)(hun)合(he)油(you)(you)中(zhong)(zhong)含雜太多(duo),則使(shi)汽(qi)(qi)(qi)(qi)(qi)提塔碟(die)(die)(die)盤(pan)(pan)表(biao)面(mian)的(de)(de)(de)(de)(de)(de)(de)結垢現象(xiang)嚴(yan)重,毛(mao)油(you)(you)質量(liang)降低;若(ruo)采用(yong)多(duo)段式(shi)(shi)(shi),應(ying)使(shi)上(shang)(shang)(shang)層(ceng)直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)壓(ya)力低于下(xia)(xia)(xia)層(ceng)。直(zhi)(zhi)接(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)好(hao)(hao)采用(yong)低壓(ya)過(guo)(guo)熱蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)。層(ceng)蝶(die)式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)提塔在(zai)(zai)(zai)檢(jian)修時碟(die)(die)(die)盤(pan)(pan)的(de)(de)(de)(de)(de)(de)(de)清理比較(jiao)麻煩(fan)。了解詳情 →2019-03-05
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油脂精煉脫臭過程中有哪些損耗油脂(zhi)(zhi)(zhi)(zhi)精煉脫臭(chou)(chou)(chou)(chou)(chou)在(zai)(zai)任何(he)情況下,蒸(zheng)(zheng)(zheng)餾(liu)(liu)引起的(de)損(sun)(sun)耗(hao)均取(qu)決(jue)于(yu)脫臭(chou)(chou)(chou)(chou)(chou)時間、通氣速(su)率(lv)、操作(zuo)壓(ya)力和溫(wen)度(du)、油脂(zhi)(zhi)(zhi)(zhi)中(zhong)游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)和不(bu)(bu)皂(zao)化(hua)物(wu)的(de)含量(liang)以(yi)及甘油三(san)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)酯的(de)組分(fen)等因素。在(zai)(zai)汽提(ti)脫臭(chou)(chou)(chou)(chou)(chou)過程(cheng)中(zhong),有相當(dang)數量(liang)的(de)油脂(zhi)(zhi)(zhi)(zhi)是(shi)由于(yu)飛(fei)濺(jian)在(zai)(zai)汽提(ti)蒸(zheng)(zheng)(zheng)汽中(zhong)而損(sun)(sun)失(shi)的(de)。因此(ci),脫臭(chou)(chou)(chou)(chou)(chou)總損(sun)(sun)耗(hao)包括(kuo)(kuo)(kuo)蒸(zheng)(zheng)(zheng)餾(liu)(liu)損(sun)(sun)耗(hao)和飛(fei)濺(jian)損(sun)(sun)耗(hao)。不(bu)(bu)同(tong)的(de)油脂(zhi)(zhi)(zhi)(zhi)、設(she)備以(yi)及不(bu)(bu)同(tong)的(de)操作(zuo)條(tiao)件(jian),其脫臭(chou)(chou)(chou)(chou)(chou)總損(sun)(sun)耗(hao)是(shi)不(bu)(bu)盡一致的(de)。汽提(ti)脫臭(chou)(chou)(chou)(chou)(chou)過程(cheng)中(zhong),低分(fen)子的(de)醛類、酮類以(yi)及游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)容易蒸(zheng)(zheng)(zheng)餾(liu)(liu)出來,隨著脫臭(chou)(chou)(chou)(chou)(chou)過程(cheng)的(de)加深,油脂(zhi)(zhi)(zhi)(zhi)內原有的(de)游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)經(jing)過脫臭(chou)(chou)(chou)(chou)(chou)后(hou)幾乎完全(quan)被(bei)除(chu)去,因此(ci)蒸(zheng)(zheng)(zheng)餾(liu)(liu)損(sun)(sun)耗(hao)硬包括(kuo)(kuo)(kuo)油脂(zhi)(zhi)(zhi)(zhi)脫臭(chou)(chou)(chou)(chou)(chou)前(qian)的(de)游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)的(de)含量(liang)。此(ci)外,根(gen)據(ju)反(fan)應方程(cheng)可知,汽提(ti)蒸(zheng)(zheng)(zheng)汽不(bu)(bu)可避免地要引起部(bu)分(fen)油脂(zhi)(zhi)(zhi)(zhi)的(de)水(shui)解(jie),因油脂(zhi)(zhi)(zhi)(zhi)水(shui)解(jie)所生成的(de)這(zhe)部(bu)分(fen)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan),也(ye)構成了蒸(zheng)(zheng)(zheng)餾(liu)(liu)損(sun)(sun)耗(hao)。根(gen)據(ju)經(jing)驗,當(dang)游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)含量(liang)降低至0.015%-0.03%時,游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)的(de)脫除(chu)速(su)率(lv)與裂解(jie)生成的(de)速(su)率(lv)即達到平衡。蒸(zheng)(zheng)(zheng)餾(liu)(liu)損(sun)(sun)耗(hao)還包括(kuo)(kuo)(kuo)油脂(zhi)(zhi)(zhi)(zhi)中(zhong)存在(zai)(zai)的(de)甾醇(chun)和其他不(bu)(bu)皂(zao)化(hua)物(wu),盡管這(zhe)部(bu)分(fen)物(wu)質較(jiao)游(you)離(li)(li)脂(zhi)(zhi)(zhi)(zhi)肪(fang)酸(suan)難于(yu)揮發,但(dan)是(shi)在(zai)(zai)脫臭(chou)(chou)(chou)(chou)(chou)餾(liu)(liu)出物(wu)卻占(zhan)有一定的(de)比(bi)例,它(ta)們構成的(de)蒸(zheng)(zheng)(zheng)餾(liu)(liu)損(sun)(sun)耗(hao)取(qu)決(jue)于(yu)脫臭(chou)(chou)(chou)(chou)(chou)操作(zuo)條(tiao)件(jian)。以(yi)大豆油為例,在(zai)(zai)較(jiao)高的(de)脫臭(chou)(chou)(chou)(chou)(chou)溫(wen)度(du)下,甾醇(chun)及不(bu)(bu)皂(zao)化(hua)物(wu)蒸(zheng)(zheng)(zheng)餾(liu)(liu)脫除(chu)率(lv)約為60%,而在(zai)(zai)一般(ban)操作(zuo)條(tiao)件(jian)下脫出率(lv)較(jiao)低。了解詳情 →2019-03-05
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油脂加工廠衛生要求油(you)脂加(jia)(jia)工(gong)(gong)廠(chang)(chang)的(de)(de)安全(quan)(quan)衛(wei)生(sheng)要(yao)求(qiu)是(shi)油(you)脂在“原料(liao)—加(jia)(jia)工(gong)(gong)—成品—包裝—儲運(yun)—市場(chang)“的(de)(de)全(quan)(quan)流程中(zhong),物(wu)料(liao)自始至(zhi)終處于安全(quan)(quan)衛(wei)生(sheng)和(he)不(bu)被污(wu)(wu)染(ran)(ran)的(de)(de)環境(jing)之中(zhong),油(you)廠(chang)(chang)設計(ji)是(shi)在油(you)脂加(jia)(jia)工(gong)(gong)中(zhong)對安全(quan)(quan)衛(wei)生(sheng)至(zhi)關重要(yao)的(de)(de)保障(zhang),所以(yi)設計(ji)中(zhong)必(bi)須要(yao)對環境(jing)、生(sheng)產(chan)設施、加(jia)(jia)工(gong)(gong)工(gong)(gong)藝以(yi)及過(guo)程、檢驗設備、貯運(yun)過(guo)程等要(yao)求(qiu)條件按照油(you)脂法令、規(gui)范執行(xing)。1,廠(chang)(chang)區環境(jing) 油(you)廠(chang)(chang)廠(chang)(chang)址要(yao)選擇(ze)地(di)(di)(di)勢干燥、交通(tong)方便(bian)、有(you)充足(zu)水(shui)源(yuan)的(de)(de)地(di)(di)(di)區,廠(chang)(chang)區周圍不(bu)得有(you)污(wu)(wu)染(ran)(ran)源(yuan),要(yao)遠(yuan)離有(you)害場(chang)所。廠(chang)(chang)區環境(jing)要(yao)衛(wei)生(sheng)清潔,物(wu)品堆放整(zheng)齊,加(jia)(jia)工(gong)(gong)后(hou)廢棄物(wu)存(cun)放要(yao)遠(yuan)離生(sheng)產(chan)車(che)間,且不(bu)得位于車(che)間上風向。2,車(che)間環境(jing) 車(che)間應(ying)(ying)保持整(zheng)潔,場(chang)地(di)(di)(di)應(ying)(ying)堅硬、平坦,排水(shui)、通(tong)風良(liang)好。車(che)間應(ying)(ying)有(you)充足(zu)的(de)(de)空間,便(bian)于設備安裝、維護(hu)、物(wu)料(liao)儲存(cun)運(yun)輸、衛(wei)生(sheng)清理(li)人員通(tong)行(xing)。如場(chang)地(di)(di)(di)要(yao)易于清洗消(xiao)毒、防(fang)霉(mei)、防(fang)腐(fu),要(yao)具備消(xiao)毒、防(fang)蠅、防(fang)鼠、更(geng)衣(yi)、洗滌污(wu)(wu)水(shui)排放、存(cun)放廢棄物(wu)的(de)(de)設施。車(che)間環境(jing)溫度、濕度、通(tong)風條件應(ying)(ying)該滿(man)足(zu)生(sheng)產(chan)工(gong)(gong)藝和(he)規(gui)程要(yao)求(qiu)。了解詳情 →2019-03-05
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國務院機構改革:組建國家糧食和物資儲備局3月13日(ri),十(shi)三屆(jie)全國(guo)(guo)人大(da)一次會(hui)議(yi)召開第四次全體會(hui)議(yi),聽取(qu)國(guo)(guo)務委(wei)員王勇關(guan)于國(guo)(guo)務院機構改革(ge)(ge)方案的(de)(de)說(shuo)明。該方案顯示,將國(guo)(guo)家(jia)糧食局的(de)(de)職責(ze)(ze),國(guo)(guo)家(jia)發展和改革(ge)(ge)委(wei)員會(hui)的(de)(de)組織實(shi)施國(guo)(guo)家(jia)戰略物(wu)資收儲、輪(lun)換(huan)和管(guan)理,管(guan)理國(guo)(guo)家(jia)糧食、棉花(hua)和食糖儲備等(deng)職責(ze)(ze),以及民政(zheng)部(bu)、商務部(bu)、國(guo)(guo)家(jia)能源(yuan)局等(deng)部(bu)門(men)的(de)(de)組織實(shi)施戰略和應(ying)急(ji)儲備物(wu)資收儲、輪(lun)換(huan)和日(ri)常管(guan)理職責(ze)(ze)整合,組建國(guo)(guo)家(jia)糧食和物(wu)資儲備局,由國(guo)(guo)家(jia)發展和改革(ge)(ge)委(wei)員會(hui)管(guan)理。了解詳情 →2019-03-05
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糧食輸送機電機的選擇電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)在(zai)糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)中可以(yi)稱得上是(shi)一(yi)(yi)個(ge)非常(chang)(chang)(chang)重(zhong)(zhong)要的(de)(de)(de)(de)(de)(de)部件,它是(shi)帶動(dong)(dong)(dong)(dong)整(zheng)個(ge)糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)運轉(zhuan)的(de)(de)(de)(de)(de)(de)關鍵。因(yin)此選擇好電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)對糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)來說(shuo)是(shi)至關重(zhong)(zhong)要的(de)(de)(de)(de)(de)(de)。不(bu)只是(shi)因(yin)為(wei)(wei)其自身(shen)的(de)(de)(de)(de)(de)(de)正(zheng)常(chang)(chang)(chang)運轉(zhuan)有必要還因(yin)為(wei)(wei)糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)能否正(zheng)常(chang)(chang)(chang)工作(zuo)關系著(zhu)整(zheng)個(ge)糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)正(zheng)常(chang)(chang)(chang)運轉(zhuan)和(he)工作(zuo)效率。電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)作(zuo)為(wei)(wei)糧(liang)(liang)食輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)驅動(dong)(dong)(dong)(dong)裝(zhuang)置,在(zai)選用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)時(shi)候盡量(liang)選用(yong)(yong)(yong)(yong)(yong)有短路(lu)(lu)(lu)裝(zhuang)置的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji),這樣(yang)做的(de)(de)(de)(de)(de)(de)原因(yin)是(shi)因(yin)為(wei)(wei)有短路(lu)(lu)(lu)裝(zhuang)置的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)有一(yi)(yi)定(ding)的(de)(de)(de)(de)(de)(de)保(bao)護(hu)(hu)裝(zhuang)置,主要體現(xian)在(zai)以(yi)下幾(ji)點(dian)。1、短路(lu)(lu)(lu)保(bao)護(hu)(hu)宜采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)低(di)壓(ya)斷(duan)(duan)(duan)(duan)(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)瞬(shun)動(dong)(dong)(dong)(dong)過電(dian)(dian)(dian)(dian)流(liu)(liu)脫(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)(qi),也(ye)可采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)瞬(shun)動(dong)(dong)(dong)(dong)元件的(de)(de)(de)(de)(de)(de)過電(dian)(dian)(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)至少(shao)在(zai)兩相(xiang)上裝(zhuang)設。2、熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)體的(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)應(ying)(ying)(ying)大(da)于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu),且其安秒特性曲線(xian)計(ji)算(suan)偏(pian)差(cha)后,略高(gao)于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)流(liu)(liu)和(he)啟動(dong)(dong)(dong)(dong)時(shi)間的(de)(de)(de)(de)(de)(de)交點(dian)。如電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)頻繁,熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)體的(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)再加大(da)1~2級。瞬(shun)時(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)脫(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)過電(dian)(dian)(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)瞬(shun)動(dong)(dong)(dong)(dong)元件的(de)(de)(de)(de)(de)(de)整(zheng)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu),應(ying)(ying)(ying)取(qu)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)2~2.5倍。3、熱(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)過載(zai)脫(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)整(zheng)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu),不(bu)小(xiao)于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)額(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu),其值(zhi)應(ying)(ying)(ying)接(jie)近額(e)(e)(e)定(ding)值(zhi)。控制電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)宜采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)接(jie)觸器(qi)(qi)(qi)(qi)(qi)、啟動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)專用(yong)(yong)(yong)(yong)(yong)開(kai)(kai)關,一(yi)(yi)組電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)可共用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)套(tao)控制電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi),控制電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)應(ying)(ying)(ying)能接(jie)通和(he)斷(duan)(duan)(duan)(duan)(duan)開(kai)(kai)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)堵轉(zhuan)電(dian)(dian)(dian)(dian)流(liu)(liu)。4、連(lian)續運行的(de)(de)(de)(de)(de)(de)帶式輸送(song)(song)(song)機(ji)(ji)(ji)(ji)(ji),采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)熔(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)保(bao)護(hu)(hu)或(huo)(huo)短路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)保(bao)護(hu)(hu),宜裝(zhuang)設斷(duan)(duan)(duan)(duan)(duan)相(xiang)熱(re)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)保(bao)護(hu)(hu)或(huo)(huo)溫度(du)保(bao)護(hu)(hu)。低(di)壓(ya)保(bao)護(hu)(hu)器(qi)(qi)(qi)(qi)(qi)宜采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)低(di)壓(ya)斷(duan)(duan)(duan)(duan)(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)欠電(dian)(dian)(dian)(dian)壓(ya)脫(tuo)(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)接(jie)觸器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)磁(ci)線(xian)圈(quan),其控制回(hui)路(lu)(lu)(lu)宜采(cai)(cai)用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)主回(hui)路(lu)(lu)(lu)供電(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)及其控制電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)宜共用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)套(tao)隔(ge)離器(qi)(qi)(qi)(qi)(qi)。5、低(di)壓(ya)交流(liu)(liu)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)回(hui)路(lu)(lu)(lu)上應(ying)(ying)(ying)在(zai)每臺(tai)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)上裝(zhuang)隔(ge)離電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi),或(huo)(huo)共用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)套(tao)短路(lu)(lu)(lu)保(bao)護(hu)(hu)的(de)(de)(de)(de)(de)(de)一(yi)(yi)組電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)共用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)套(tao)隔(ge)離電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)主回(hui)路(lu)(lu)(lu)導線(xian)的(de)(de)(de)(de)(de)(de)載(zai)流(liu)(liu)量(liang)不(bu)應(ying)(ying)(ying)小(xiao)于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)額(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu),并對其機(ji)(ji)(ji)(ji)(ji)械強(qiang)度(du)、電(dian)(dian)(dian)(dian)壓(ya)和(he)在(zai)短路(lu)(lu)(lu)條(tiao)件的(de)(de)(de)(de)(de)(de)熱(re)穩定(ding)性進行校驗。了解詳情 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