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影響油脂精煉吸附脫色的因素有哪些油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)精煉過程中(zhong)(zhong)脫(tuo)(tuo)色(se)(se)(se)在(zai)于獲(huo)得油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)色(se)(se)(se)澤的(de)(de)(de)改(gai)善(shan)和(he)為油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)臭(chou)提(ti)(ti)供合格的(de)(de)(de)原料(liao)油(you)(you)(you)品(pin)。因(yin)此,油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)精煉過程中(zhong)(zhong)脫(tuo)(tuo)色(se)(se)(se)油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)色(se)(se)(se)度(du)標準的(de)(de)(de)制訂,需要(yao)(yao)(yao)根(gen)據油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)以(yi)及其制品(pin)的(de)(de)(de)質(zhi)量(liang)(liang)要(yao)(yao)(yao)求(qiu),以(yi)及力(li)求(qiu)在(zai)低(di)的(de)(de)(de)損(sun)耗(hao)下獲(huo)得油(you)(you)(you)色(se)(se)(se)在(zai)大限(xian)度(du)上的(de)(de)(de)改(gai)善(shan)為度(du)。1,油(you)(you)(you)的(de)(de)(de)品(pin)質(zhi)以(yi)及前(qian)處(chu)理油(you)(you)(you)中(zhong)(zhong)的(de)(de)(de)天然色(se)(se)(se)素(su)(su)(su)較易脫(tuo)(tuo)除,而油(you)(you)(you)料(liao)儲存和(he)油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)生(sheng)產(chan)過程中(zhong)(zhong)形成的(de)(de)(de)新生(sheng)色(se)(se)(se)素(su)(su)(su)或者因(yin)為氧化(hua)而固定(ding)了(le)的(de)(de)(de)色(se)(se)(se)素(su)(su)(su),一(yi)(yi)般比較難(nan)脫(tuo)(tuo)除。由此可見,提(ti)(ti)高毛油(you)(you)(you)質(zhi)量(liang)(liang),避免油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)在(zai)加(jia)工環節(jie)中(zhong)(zhong)的(de)(de)(de)氧化(hua),才能確(que)保(bao)脫(tuo)(tuo)色(se)(se)(se)效果。油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)精煉脫(tuo)(tuo)色(se)(se)(se)前(qian)處(chu)理的(de)(de)(de)油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)質(zhi)量(liang)(liang)對(dui)脫(tuo)(tuo)色(se)(se)(se)效率(lv)(lv)的(de)(de)(de)影(ying)響(xiang)也甚為重要(yao)(yao)(yao)。當待(dai)脫(tuo)(tuo)色(se)(se)(se)油(you)(you)(you)中(zhong)(zhong)殘留膠質(zhi)、皂粒(li)和(he)懸浮物雜(za)質(zhi)時(shi),這些(xie)(xie)雜(za)質(zhi)會占據吸(xi)附(fu)(fu)劑(ji)的(de)(de)(de)一(yi)(yi)部分(fen)(fen)活(huo)化(hua)表(biao)面,從而降低(di)脫(tuo)(tuo)色(se)(se)(se)效率(lv)(lv)或者增加(jia)吸(xi)附(fu)(fu)劑(ji)用(yong)量(liang)(liang)。2, 吸(xi)附(fu)(fu)劑(ji)的(de)(de)(de)質(zhi)量(liang)(liang)和(he)用(yong)量(liang)(liang)吸(xi)附(fu)(fu)劑(ji)是影(ying)響(xiang)脫(tuo)(tuo)色(se)(se)(se)效果的(de)(de)(de)關(guan)鍵的(de)(de)(de)因(yin)素(su)(su)(su)。不同(tong)(tong)種類的(de)(de)(de)吸(xi)附(fu)(fu)劑(ji)具(ju)有各自的(de)(de)(de)特性,根(gen)據油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)色(se)(se)(se)的(de)(de)(de)具(ju)體要(yao)(yao)(yao)求(qiu),合理選擇吸(xi)附(fu)(fu)劑(ji),才能經濟地獲(huo)得脫(tuo)(tuo)色(se)(se)(se)效果。活(huo)性白(bai)(bai)土是油(you)(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)色(se)(se)(se)常用(yong)的(de)(de)(de)吸(xi)附(fu)(fu)劑(ji)。不同(tong)(tong)規(gui)格的(de)(de)(de)活(huo)性白(bai)(bai)土所表(biao)現出的(de)(de)(de)性能各異。其活(huo)性度(du)受到原土、酸處(chu)理、水分(fen)(fen)等因(yin)素(su)(su)(su)的(de)(de)(de)影(ying)響(xiang)。在(zai)期望獲(huo)得高活(huo)性度(du)的(de)(de)(de)同(tong)(tong)時(shi),還應該考慮到這些(xie)(xie)因(yin)素(su)(su)(su)對(dui)油(you)(you)(you)品(pin)酸值、過濾速率(lv)(lv)以(yi)及油(you)(you)(you)損(sun)率(lv)(lv)的(de)(de)(de)影(ying)響(xiang)。某種油(you)(you)(you)品(pin)在(zai)特定(ding)脫(tuo)(tuo)色(se)(se)(se)條件下的(de)(de)(de)適活(huo)性白(bai)(bai)土以(yi)及添加(jia)量(liang)(liang)一(yi)(yi)般可通過實驗(yan)室小樣試驗(yan)加(jia)以(yi)優選。了解詳情 →2023-09-26
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軋胚機的保養與事故處理軋胚(pei)(pei)機(ji)(ji)(ji)是(shi)油(you)廠的(de)(de)關鍵(jian)設(she)備之一,售價高、機(ji)(ji)(ji)體笨重(zhong)、修(xiu)理費用高。所以(yi)(yi)(yi)在(zai)生(sheng)(sheng)(sheng)產過(guo)程中,要(yao)(yao)(yao)精心保養以(yi)(yi)(yi)延長(chang)使(shi)用壽命,這對(dui)于增(zeng)加效益和降低成(cheng)本(ben)等(deng)都(dou)(dou)有很重(zhong)要(yao)(yao)(yao)的(de)(de)意(yi)義。軋胚(pei)(pei)機(ji)(ji)(ji)經(jing)過(guo)長(chang)期(qi)運轉(zhuan),往(wang)往(wang)發生(sheng)(sheng)(sheng)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)面(mian)(mian)(mian)兩邊(bian)磨(mo)損較為(wei)(wei)嚴(yan)(yan)重(zhong)的(de)(de)現(xian)象,從(cong)而影響(xiang)(xiang)軋胚(pei)(pei)效果(guo)。所以(yi)(yi)(yi)每周都(dou)(dou)應該安排一定時(shi)(shi)間(jian),用砂輪或(huo)者其他辦法將(jiang)軋輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)兩邊(bian)部分磨(mo)一磨(mo)。如果(guo)對(dui)油(you)料(liao)(liao)(liao)(liao)(liao)清雜不(bu)(bu)好,石頭、小鐵塊(kuai)等(deng)雜質(zhi)進(jin)入(ru)軋胚(pei)(pei)機(ji)(ji)(ji)內,往(wang)往(wang)造成(cheng)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)面(mian)(mian)(mian)的(de)(de)點蝕(shi),致使(shi)光(guang)(guang)滑(hua)的(de)(de)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)面(mian)(mian)(mian)出現(xian)凹坑,軋出的(de)(de)料(liao)(liao)(liao)(liao)(liao)胚(pei)(pei)厚(hou)薄(bo)不(bu)(bu)均,影響(xiang)(xiang)出油(you),這時(shi)(shi)就(jiu)(jiu)(jiu)得(de)(de)更(geng)換壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun),將(jiang)有凹坑的(de)(de)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)重(zhong)新車(che)平(ping)。壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)面(mian)(mian)(mian)積硬度增(zeng)大,車(che)削加工比較困難。軋胚(pei)(pei)機(ji)(ji)(ji)有時(shi)(shi)發生(sheng)(sheng)(sheng)不(bu)(bu)吃料(liao)(liao)(liao)(liao)(liao)或(huo)者吃料(liao)(liao)(liao)(liao)(liao)少的(de)(de)現(xian)象。會嚴(yan)(yan)重(zhong)影響(xiang)(xiang)軋胚(pei)(pei)機(ji)(ji)(ji)的(de)(de)效率。軋胚(pei)(pei)機(ji)(ji)(ji)振動(dong)大是(shi)引(yin)起(qi)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)不(bu)(bu)吃料(liao)(liao)(liao)(liao)(liao)的(de)(de)一個(ge)重(zhong)要(yao)(yao)(yao)原(yuan)因。抖動(dong)的(de)(de)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun),不(bu)(bu)斷地(di)給油(you)料(liao)(liao)(liao)(liao)(liao)一個(ge)向(xiang)上的(de)(de)力(li)(li)(li),使(shi)得(de)(de)油(you)料(liao)(liao)(liao)(liao)(liao)被壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)拋起(qi)、落下(xia),始(shi)終在(zai)兩個(ge)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)之間(jian)跳上跳下(xia)。發生(sheng)(sheng)(sheng)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)不(bu)(bu)吃料(liao)(liao)(liao)(liao)(liao)時(shi)(shi)候,應該找(zhao)出原(yuan)因,絕不(bu)(bu)能將(jiang)光(guang)(guang)滑(hua)的(de)(de)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)面(mian)(mian)(mian)人為(wei)(wei)地(di)刨些坑,以(yi)(yi)(yi)此增(zeng)加摩(mo)擦力(li)(li)(li)而使(shi)之吃料(liao)(liao)(liao)(liao)(liao)。斷軸和掉輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)邊(bian)。為(wei)(wei)了保證軋胚(pei)(pei)的(de)(de)要(yao)(yao)(yao)求(qiu),在(zai)軋輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)不(bu)(bu)平(ping)直(zhi)度逐漸加大時(shi)(shi),就(jiu)(jiu)(jiu)要(yao)(yao)(yao)增(zeng)加彈簧壓(ya)(ya)力(li)(li)(li)。這樣使(shi)軸承處總是(shi)承受一個(ge)徑向(xiang)力(li)(li)(li),一旦料(liao)(liao)(liao)(liao)(liao)流不(bu)(bu)均勻,特別是(shi)進(jin)入(ru)鐵器和石子等(deng)硬物,使(shi)兩個(ge)壓(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)(gun)(gun)(gun)發生(sheng)(sheng)(sheng)碰撞,這瞬時(shi)(shi)的(de)(de)沖擊(ji)力(li)(li)(li)是(shi)相(xiang)當大的(de)(de)。多次的(de)(de)沖擊(ji)的(de)(de)結(jie)果(guo),超過(guo)軸的(de)(de)疲勞(lao)限(xian)度,就(jiu)(jiu)(jiu)會發生(sheng)(sheng)(sheng)斷軸或(huo)者掉邊(bian)現(xian)象。所以(yi)(yi)(yi)應該強調,操作時(shi)(shi)調節軋距的(de)(de)彈簧不(bu)(bu)要(yao)(yao)(yao)太緊(jin),不(bu)(bu)要(yao)(yao)(yao)進(jin)入(ru)鐵器,料(liao)(liao)(liao)(liao)(liao)流要(yao)(yao)(yao)均勻以(yi)(yi)(yi)及不(bu)(bu)要(yao)(yao)(yao)斷料(liao)(liao)(liao)(liao)(liao)等(deng),都(dou)(dou)是(shi)防止此類(lei)事(shi)故發生(sheng)(sheng)(sheng)的(de)(de)有效措施。了解詳情 →2023-09-26
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什么是層蝶式汽提塔?層(ceng)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)是(shi)國內(nei)浸(jin)出(chu)(chu)油(you)(you)(you)廠使(shi)用(yong)(yong)較(jiao)多的(de)(de)一種(zhong)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)設備。若按照水(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)(qi)對混(hun)合(he)油(you)(you)(you)的(de)(de)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)次數(shu),層(ceng)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)可(ke)分為(wei)單段(duan)式和(he)(he)(he)雙段(duan)式兩種(zhong)。雙段(duan)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta),它主要有頂蓋、上(shang)(shang)塔(ta)(ta)體(ti)(ti)、中(zhong)(zhong)塔(ta)(ta)體(ti)(ti)、下(xia)塔(ta)(ta)體(ti)(ti)以及底蓋所組(zu)(zu)成(cheng)。在上(shang)(shang)塔(ta)(ta)體(ti)(ti)和(he)(he)(he)下(xia)塔(ta)(ta)體(ti)(ti)內(nei)各(ge)有6-9組(zu)(zu)碟(die)(die)盤(pan)(pan)。每(mei)組(zu)(zu)碟(die)(die)盤(pan)(pan)都(dou)由(you)(you)滯流盤(pan)(pan)、錐(zhui)形(xing)(xing)分配(pei)碟(die)(die)和(he)(he)(he)環形(xing)(xing)分配(pei)碟(die)(die)組(zu)(zu)成(cheng)。上(shang)(shang)、下(xia)塔(ta)(ta)體(ti)(ti)的(de)(de)外(wai)殼均裝有夾套,在夾套中(zhong)(zhong)通入(ru)(ru)343-441kPa的(de)(de)加熱蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)對塔(ta)(ta)內(nei)的(de)(de)混(hun)合(he)油(you)(you)(you)進(jin)行間接(jie)加熱。中(zhong)(zhong)塔(ta)(ta)體(ti)(ti)和(he)(he)(he)底盤(pan)(pan)內(nei)各(ge)有一組(zu)(zu)直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)噴(pen)入(ru)(ru)裝置(zhi)。這組(zu)(zu)裝置(zhi)由(you)(you)集油(you)(you)(you)盤(pan)(pan)、導流管(guan)(guan)(guan)、中(zhong)(zhong)心管(guan)(guan)(guan)、直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)噴(pen)管(guan)(guan)(guan)組(zu)(zu)成(cheng)。來自(zi)第二蒸(zheng)(zheng)(zheng)發器的(de)(de)混(hun)合(he)油(you)(you)(you),進(jin)入(ru)(ru)層(ceng)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)的(de)(de)進(jin)油(you)(you)(you)管(guan)(guan)(guan)之后(hou),自(zi)上(shang)(shang)而下(xia)逐(zhu)(zhu)次流經(jing)每(mei)一組(zu)(zu)碟(die)(die)盤(pan)(pan)。到達中(zhong)(zhong)塔(ta)(ta)體(ti)(ti)的(de)(de)集油(you)(you)(you)盤(pan)(pan)底的(de)(de)阻(zu)攔,被(bei)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)出(chu)(chu)的(de)(de)溶劑(ji)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)水(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)(qi)繞過(guo)(guo)集油(you)(you)(you)盤(pan)(pan)向(xiang)上(shang)(shang)移(yi)動,而油(you)(you)(you)被(bei)阻(zu)留落下(xia)。之后(hou),混(hun)合(he)油(you)(you)(you)又(you)沿(yan)著(zhu)下(xia)塔(ta)(ta)體(ti)(ti)內(nei)的(de)(de)各(ge)組(zu)(zu)碟(die)(die)盤(pan)(pan)逐(zhu)(zhu)次流下(xia),到達底蓋內(nei),在直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)噴(pen)入(ru)(ru)裝置(zhi)中(zhong)(zhong)又(you)一次被(bei)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti),汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)出(chu)(chu)的(de)(de)溶劑(ji)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)水(shui)(shui)蒸(zheng)(zheng)(zheng)氣(qi)(qi)自(zi)下(xia)而上(shang)(shang)逐(zhu)(zhu)級通過(guo)(guo)每(mei)一組(zu)(zu)碟(die)(die)盤(pan)(pan)的(de)(de)空隙,與(yu)碟(die)(die)盤(pan)(pan)表(biao)面流下(xia)的(de)(de)液膜(mo)狀混(hun)合(he)油(you)(you)(you)充分接(jie)觸,使(shi)混(hun)合(he)油(you)(you)(you)得到進(jin)一步汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)。到達頂部的(de)(de)混(hun)合(he)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)通過(guo)(guo)出(chu)(chu)氣(qi)(qi)管(guan)(guan)(guan)進(jin)入(ru)(ru)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)冷凝器。經(jing)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)后(hou)的(de)(de)浸(jin)出(chu)(chu)毛(mao)油(you)(you)(you)從(cong)底部的(de)(de)出(chu)(chu)油(you)(you)(you)管(guan)(guan)(guan)通過(guo)(guo)液封裝置(zhi)排(pai)出(chu)(chu)。層(ceng)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)結構(gou)較(jiao)為(wei)簡單,操作方便,工藝(yi)效(xiao)果好。但是(shi)必須注意的(de)(de):每(mei)一組(zu)(zu)碟(die)(die)盤(pan)(pan)的(de)(de)制造質量(liang)和(he)(he)(he)是(shi)否水(shui)(shui)平安裝,將(jiang)影(ying)響混(hun)合(he)油(you)(you)(you)液膜(mo)的(de)(de)形(xing)(xing)成(cheng)與(yu)氣(qi)(qi)液相(xiang)接(jie)觸的(de)(de)面積;直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)含水(shui)(shui),會造成(cheng)毛(mao)油(you)(you)(you)中(zhong)(zhong)磷(lin)脂的(de)(de)析出(chu)(chu);直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)壓(ya)力(li)過(guo)(guo)高或者用(yong)(yong)量(liang)過(guo)(guo)大,會形(xing)(xing)成(cheng)液泛現象;混(hun)合(he)油(you)(you)(you)中(zhong)(zhong)含雜太多,則(ze)使(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)碟(die)(die)盤(pan)(pan)表(biao)面的(de)(de)結垢現象嚴重,毛(mao)油(you)(you)(you)質量(liang)降低(di);若采用(yong)(yong)多段(duan)式,應使(shi)上(shang)(shang)層(ceng)直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)壓(ya)力(li)低(di)于下(xia)層(ceng)。直(zhi)接(jie)蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)好采用(yong)(yong)低(di)壓(ya)過(guo)(guo)熱蒸(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)。層(ceng)蝶(die)式汽(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)塔(ta)(ta)在檢(jian)修時(shi)碟(die)(die)盤(pan)(pan)的(de)(de)清理比(bi)較(jiao)麻煩。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(you)脂精煉脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)在(zai)任何(he)情況(kuang)下(xia),蒸(zheng)(zheng)餾引起的(de)(de)(de)(de)(de)(de)損(sun)耗(hao)均取決(jue)于(yu)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)時(shi)間、通氣速(su)率(lv)(lv)、操作壓力和(he)溫度、油(you)脂中(zhong)游(you)(you)離(li)脂肪(fang)酸(suan)(suan)和(he)不(bu)(bu)皂化物(wu)的(de)(de)(de)(de)(de)(de)含(han)量(liang)(liang)以(yi)及甘油(you)三(san)脂肪(fang)酸(suan)(suan)酯(zhi)的(de)(de)(de)(de)(de)(de)組(zu)分(fen)等因(yin)素。在(zai)汽(qi)(qi)提(ti)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)過(guo)程(cheng)中(zhong),有相當數量(liang)(liang)的(de)(de)(de)(de)(de)(de)油(you)脂是由于(yu)飛(fei)(fei)濺在(zai)汽(qi)(qi)提(ti)蒸(zheng)(zheng)汽(qi)(qi)中(zhong)而(er)損(sun)失的(de)(de)(de)(de)(de)(de)。因(yin)此(ci),脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)總損(sun)耗(hao)包(bao)括(kuo)蒸(zheng)(zheng)餾損(sun)耗(hao)和(he)飛(fei)(fei)濺損(sun)耗(hao)。不(bu)(bu)同的(de)(de)(de)(de)(de)(de)油(you)脂、設備以(yi)及不(bu)(bu)同的(de)(de)(de)(de)(de)(de)操作條件,其脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)總損(sun)耗(hao)是不(bu)(bu)盡一(yi)致的(de)(de)(de)(de)(de)(de)。汽(qi)(qi)提(ti)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)過(guo)程(cheng)中(zhong),低分(fen)子的(de)(de)(de)(de)(de)(de)醛(quan)類、酮(tong)類以(yi)及游(you)(you)離(li)脂肪(fang)酸(suan)(suan)容易蒸(zheng)(zheng)餾出來,隨著脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)過(guo)程(cheng)的(de)(de)(de)(de)(de)(de)加深(shen),油(you)脂內原有的(de)(de)(de)(de)(de)(de)游(you)(you)離(li)脂肪(fang)酸(suan)(suan)經過(guo)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)后幾乎完全被除去,因(yin)此(ci)蒸(zheng)(zheng)餾損(sun)耗(hao)硬包(bao)括(kuo)油(you)脂脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)前的(de)(de)(de)(de)(de)(de)游(you)(you)離(li)脂肪(fang)酸(suan)(suan)的(de)(de)(de)(de)(de)(de)含(han)量(liang)(liang)。此(ci)外,根據反應方程(cheng)可知,汽(qi)(qi)提(ti)蒸(zheng)(zheng)汽(qi)(qi)不(bu)(bu)可避免地要引起部(bu)(bu)分(fen)油(you)脂的(de)(de)(de)(de)(de)(de)水解(jie)(jie),因(yin)油(you)脂水解(jie)(jie)所生(sheng)成(cheng)的(de)(de)(de)(de)(de)(de)這部(bu)(bu)分(fen)脂肪(fang)酸(suan)(suan),也構成(cheng)了(le)蒸(zheng)(zheng)餾損(sun)耗(hao)。根據經驗,當游(you)(you)離(li)脂肪(fang)酸(suan)(suan)含(han)量(liang)(liang)降(jiang)低至(zhi)0.015%-0.03%時(shi),游(you)(you)離(li)脂肪(fang)酸(suan)(suan)的(de)(de)(de)(de)(de)(de)脫(tuo)(tuo)(tuo)除速(su)率(lv)(lv)與裂(lie)解(jie)(jie)生(sheng)成(cheng)的(de)(de)(de)(de)(de)(de)速(su)率(lv)(lv)即達到(dao)平衡。蒸(zheng)(zheng)餾損(sun)耗(hao)還包(bao)括(kuo)油(you)脂中(zhong)存在(zai)的(de)(de)(de)(de)(de)(de)甾醇和(he)其他不(bu)(bu)皂化物(wu),盡管(guan)這部(bu)(bu)分(fen)物(wu)質較游(you)(you)離(li)脂肪(fang)酸(suan)(suan)難于(yu)揮發,但是在(zai)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)餾出物(wu)卻占有一(yi)定的(de)(de)(de)(de)(de)(de)比例(li),它們(men)構成(cheng)的(de)(de)(de)(de)(de)(de)蒸(zheng)(zheng)餾損(sun)耗(hao)取決(jue)于(yu)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)操作條件。以(yi)大豆油(you)為例(li),在(zai)較高的(de)(de)(de)(de)(de)(de)脫(tuo)(tuo)(tuo)臭(chou)(chou)(chou)(chou)溫度下(xia),甾醇及不(bu)(bu)皂化物(wu)蒸(zheng)(zheng)餾脫(tuo)(tuo)(tuo)除率(lv)(lv)約為60%,而(er)在(zai)一(yi)般操作條件下(xia)脫(tuo)(tuo)(tuo)出率(lv)(lv)較低。了解詳情 →2019-03-05
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油脂加工廠衛生要求油(you)脂(zhi)加(jia)工(gong)廠(chang)(chang)的(de)安全(quan)(quan)衛(wei)生(sheng)(sheng)(sheng)要(yao)(yao)(yao)求是油(you)脂(zhi)在“原料(liao)—加(jia)工(gong)—成品(pin)—包裝(zhuang)—儲運(yun)(yun)—市(shi)場(chang)“的(de)全(quan)(quan)流(liu)程中(zhong),物料(liao)自(zi)始至(zhi)終處于(yu)安全(quan)(quan)衛(wei)生(sheng)(sheng)(sheng)和不(bu)被(bei)污染的(de)環境(jing)(jing)(jing)之中(zhong),油(you)廠(chang)(chang)設(she)(she)計(ji)是在油(you)脂(zhi)加(jia)工(gong)中(zhong)對安全(quan)(quan)衛(wei)生(sheng)(sheng)(sheng)至(zhi)關重要(yao)(yao)(yao)的(de)保障,所以設(she)(she)計(ji)中(zhong)必須要(yao)(yao)(yao)對環境(jing)(jing)(jing)、生(sheng)(sheng)(sheng)產設(she)(she)施、加(jia)工(gong)工(gong)藝以及過(guo)程、檢(jian)驗設(she)(she)備、貯運(yun)(yun)過(guo)程等要(yao)(yao)(yao)求條件(jian)按照(zhao)油(you)脂(zhi)法(fa)令、規(gui)范執(zhi)行。1,廠(chang)(chang)區環境(jing)(jing)(jing) 油(you)廠(chang)(chang)廠(chang)(chang)址(zhi)要(yao)(yao)(yao)選擇地勢(shi)干(gan)燥、交通方便、有充足(zu)水源的(de)地區,廠(chang)(chang)區周(zhou)圍不(bu)得(de)有污染源,要(yao)(yao)(yao)遠(yuan)離有害(hai)場(chang)所。廠(chang)(chang)區環境(jing)(jing)(jing)要(yao)(yao)(yao)衛(wei)生(sheng)(sheng)(sheng)清潔(jie),物品(pin)堆放(fang)整(zheng)齊,加(jia)工(gong)后廢(fei)棄物存(cun)(cun)放(fang)要(yao)(yao)(yao)遠(yuan)離生(sheng)(sheng)(sheng)產車(che)(che)間,且不(bu)得(de)位于(yu)車(che)(che)間上風(feng)向。2,車(che)(che)間環境(jing)(jing)(jing) 車(che)(che)間應保持整(zheng)潔(jie),場(chang)地應堅(jian)硬、平坦,排水、通風(feng)良好。車(che)(che)間應有充足(zu)的(de)空間,便于(yu)設(she)(she)備安裝(zhuang)、維護、物料(liao)儲存(cun)(cun)運(yun)(yun)輸、衛(wei)生(sheng)(sheng)(sheng)清理人員通行。如(ru)場(chang)地要(yao)(yao)(yao)易(yi)于(yu)清洗消毒、防(fang)(fang)霉、防(fang)(fang)腐,要(yao)(yao)(yao)具備消毒、防(fang)(fang)蠅、防(fang)(fang)鼠(shu)、更(geng)衣、洗滌污水排放(fang)、存(cun)(cun)放(fang)廢(fei)棄物的(de)設(she)(she)施。車(che)(che)間環境(jing)(jing)(jing)溫度、濕度、通風(feng)條件(jian)應該滿足(zu)生(sheng)(sheng)(sheng)產工(gong)藝和規(gui)程要(yao)(yao)(yao)求。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,十三屆全國(guo)(guo)(guo)人大(da)一次(ci)會議召開第(di)四次(ci)全體會議,聽(ting)取(qu)國(guo)(guo)(guo)務委員(yuan)王勇關(guan)于國(guo)(guo)(guo)務院機構改革(ge)(ge)方(fang)案(an)的(de)(de)說明。該(gai)方(fang)案(an)顯示,將國(guo)(guo)(guo)家(jia)(jia)糧食局(ju)的(de)(de)職責(ze),國(guo)(guo)(guo)家(jia)(jia)發展和改革(ge)(ge)委員(yuan)會的(de)(de)組織(zhi)實(shi)施(shi)國(guo)(guo)(guo)家(jia)(jia)戰略物(wu)資(zi)收(shou)儲(chu)(chu)(chu)(chu)、輪換和管理(li)(li),管理(li)(li)國(guo)(guo)(guo)家(jia)(jia)糧食、棉花和食糖(tang)儲(chu)(chu)(chu)(chu)備等職責(ze),以及民政(zheng)部、商(shang)務部、國(guo)(guo)(guo)家(jia)(jia)能源(yuan)局(ju)等部門(men)的(de)(de)組織(zhi)實(shi)施(shi)戰略和應(ying)急儲(chu)(chu)(chu)(chu)備物(wu)資(zi)收(shou)儲(chu)(chu)(chu)(chu)、輪換和日常(chang)管理(li)(li)職責(ze)整合,組建國(guo)(guo)(guo)家(jia)(jia)糧食和物(wu)資(zi)儲(chu)(chu)(chu)(chu)備局(ju),由國(guo)(guo)(guo)家(jia)(jia)發展和改革(ge)(ge)委員(yuan)會管理(li)(li)。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)(dian)(dian)機(ji)(ji)(ji)(ji)在(zai)糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)中(zhong)可以稱得(de)上(shang)是一(yi)(yi)(yi)(yi)個(ge)非(fei)常(chang)重要(yao)的(de)(de)(de)(de)(de)部件(jian),它是帶動(dong)(dong)(dong)(dong)整(zheng)(zheng)(zheng)個(ge)糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)運轉的(de)(de)(de)(de)(de)關(guan)鍵。因(yin)此選擇好電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)對糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)來(lai)說是至(zhi)關(guan)重要(yao)的(de)(de)(de)(de)(de)。不(bu)只(zhi)是因(yin)為(wei)其(qi)自身(shen)的(de)(de)(de)(de)(de)正常(chang)運轉有(you)(you)必要(yao)還因(yin)為(wei)糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)能否正常(chang)工(gong)作(zuo)關(guan)系著(zhu)整(zheng)(zheng)(zheng)個(ge)糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)正常(chang)運轉和工(gong)作(zuo)效率。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)作(zuo)為(wei)糧食(shi)(shi)輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)驅動(dong)(dong)(dong)(dong)裝(zhuang)置(zhi),在(zai)選用(yong)(yong)的(de)(de)(de)(de)(de)時候盡量選用(yong)(yong)有(you)(you)短(duan)路(lu)裝(zhuang)置(zhi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji),這樣做的(de)(de)(de)(de)(de)原因(yin)是因(yin)為(wei)有(you)(you)短(duan)路(lu)裝(zhuang)置(zhi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)有(you)(you)一(yi)(yi)(yi)(yi)定(ding)的(de)(de)(de)(de)(de)保(bao)(bao)(bao)(bao)護(hu)裝(zhuang)置(zhi),主(zhu)要(yao)體(ti)現在(zai)以下幾點。1、短(duan)路(lu)保(bao)(bao)(bao)(bao)護(hu)宜(yi)采(cai)用(yong)(yong)熔(rong)斷(duan)器(qi)(qi)(qi)(qi)或(huo)(huo)低(di)(di)壓斷(duan)路(lu)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)瞬(shun)動(dong)(dong)(dong)(dong)過電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)脫(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi),也可采(cai)用(yong)(yong)瞬(shun)動(dong)(dong)(dong)(dong)元(yuan)件(jian)的(de)(de)(de)(de)(de)過電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)。熔(rong)斷(duan)器(qi)(qi)(qi)(qi)至(zhi)少在(zai)兩相上(shang)裝(zhuang)設。2、熔(rong)斷(duan)器(qi)(qi)(qi)(qi)熔(rong)斷(duan)體(ti)的(de)(de)(de)(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)應(ying)大于電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu),且(qie)其(qi)安秒(miao)特(te)性(xing)曲線計算偏(pian)差后(hou),略高于電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟(qi)(qi)動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)和啟(qi)(qi)動(dong)(dong)(dong)(dong)時間(jian)的(de)(de)(de)(de)(de)交點。如電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟(qi)(qi)動(dong)(dong)(dong)(dong)頻繁,熔(rong)斷(duan)體(ti)的(de)(de)(de)(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)再加(jia)大1~2級。瞬(shun)時電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)脫(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)或(huo)(huo)過電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)瞬(shun)動(dong)(dong)(dong)(dong)元(yuan)件(jian)的(de)(de)(de)(de)(de)整(zheng)(zheng)(zheng)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu),應(ying)取電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟(qi)(qi)動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)2~2.5倍(bei)。3、熱(re)(re)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)或(huo)(huo)過載(zai)脫(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)整(zheng)(zheng)(zheng)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu),不(bu)小于電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu),其(qi)值應(ying)接近(jin)額(e)(e)定(ding)值。控制電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)宜(yi)采(cai)用(yong)(yong)接觸器(qi)(qi)(qi)(qi)、啟(qi)(qi)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)或(huo)(huo)專用(yong)(yong)開關(guan),一(yi)(yi)(yi)(yi)組(zu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)可共(gong)(gong)用(yong)(yong)一(yi)(yi)(yi)(yi)套控制電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi),控制電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)應(ying)能接通和斷(duan)開電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)堵(du)轉電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。4、連續(xu)運行(xing)的(de)(de)(de)(de)(de)帶式輸(shu)(shu)送(song)機(ji)(ji)(ji)(ji),采(cai)用(yong)(yong)熔(rong)斷(duan)器(qi)(qi)(qi)(qi)保(bao)(bao)(bao)(bao)護(hu)或(huo)(huo)短(duan)路(lu)器(qi)(qi)(qi)(qi)保(bao)(bao)(bao)(bao)護(hu),宜(yi)裝(zhuang)設斷(duan)相熱(re)(re)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)保(bao)(bao)(bao)(bao)護(hu)或(huo)(huo)溫度(du)(du)保(bao)(bao)(bao)(bao)護(hu)。低(di)(di)壓保(bao)(bao)(bao)(bao)護(hu)器(qi)(qi)(qi)(qi)宜(yi)采(cai)用(yong)(yong)低(di)(di)壓斷(duan)路(lu)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)欠電(dian)(dian)(dian)(dian)(dian)(dian)壓脫(tuo)扣(kou)(kou)(kou)器(qi)(qi)(qi)(qi)或(huo)(huo)接觸器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁線圈,其(qi)控制回(hui)(hui)路(lu)宜(yi)采(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)主(zhu)回(hui)(hui)路(lu)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)及其(qi)控制電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)宜(yi)共(gong)(gong)用(yong)(yong)一(yi)(yi)(yi)(yi)套隔(ge)離器(qi)(qi)(qi)(qi)。5、低(di)(di)壓交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)回(hui)(hui)路(lu)上(shang)應(ying)在(zai)每臺電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)上(shang)裝(zhuang)隔(ge)離電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi),或(huo)(huo)共(gong)(gong)用(yong)(yong)一(yi)(yi)(yi)(yi)套短(duan)路(lu)保(bao)(bao)(bao)(bao)護(hu)的(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)組(zu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)共(gong)(gong)用(yong)(yong)一(yi)(yi)(yi)(yi)套隔(ge)離電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)主(zhu)回(hui)(hui)路(lu)導線的(de)(de)(de)(de)(de)載(zai)流(liu)(liu)量不(bu)應(ying)小于電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu),并對其(qi)機(ji)(ji)(ji)(ji)械強(qiang)度(du)(du)、電(dian)(dian)(dian)(dian)(dian)(dian)壓和在(zai)短(duan)路(lu)條件(jian)的(de)(de)(de)(de)(de)熱(re)(re)穩定(ding)性(xing)進行(xing)校驗(yan)。了解詳情 →2019-03-05