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影響油脂精煉吸附脫色的因素有哪些油(you)(you)(you)(you)脂(zhi)精煉(lian)過(guo)程(cheng)中脫(tuo)色(se)(se)(se)(se)(se)在(zai)(zai)于(yu)獲(huo)(huo)得油(you)(you)(you)(you)脂(zhi)色(se)(se)(se)(se)(se)澤的(de)(de)(de)(de)(de)(de)改善和(he)為油(you)(you)(you)(you)脂(zhi)脫(tuo)臭提供合格(ge)的(de)(de)(de)(de)(de)(de)原料油(you)(you)(you)(you)品。因此,油(you)(you)(you)(you)脂(zhi)精煉(lian)過(guo)程(cheng)中脫(tuo)色(se)(se)(se)(se)(se)油(you)(you)(you)(you)脂(zhi)色(se)(se)(se)(se)(se)度(du)標準的(de)(de)(de)(de)(de)(de)制(zhi)訂,需(xu)要根據油(you)(you)(you)(you)脂(zhi)以及其制(zhi)品的(de)(de)(de)(de)(de)(de)質(zhi)(zhi)量(liang)(liang)要求(qiu),以及力(li)求(qiu)在(zai)(zai)低的(de)(de)(de)(de)(de)(de)損(sun)耗下獲(huo)(huo)得油(you)(you)(you)(you)色(se)(se)(se)(se)(se)在(zai)(zai)大限度(du)上的(de)(de)(de)(de)(de)(de)改善為度(du)。1,油(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)品質(zhi)(zhi)以及前處(chu)(chu)理油(you)(you)(you)(you)中的(de)(de)(de)(de)(de)(de)天然色(se)(se)(se)(se)(se)素(su)較易(yi)脫(tuo)除(chu),而(er)油(you)(you)(you)(you)料儲存和(he)油(you)(you)(you)(you)脂(zhi)生產(chan)過(guo)程(cheng)中形成的(de)(de)(de)(de)(de)(de)新生色(se)(se)(se)(se)(se)素(su)或者因為氧化而(er)固定(ding)了的(de)(de)(de)(de)(de)(de)色(se)(se)(se)(se)(se)素(su),一般比較難脫(tuo)除(chu)。由此可見,提高毛油(you)(you)(you)(you)質(zhi)(zhi)量(liang)(liang),避免油(you)(you)(you)(you)脂(zhi)在(zai)(zai)加工環節中的(de)(de)(de)(de)(de)(de)氧化,才能(neng)確保脫(tuo)色(se)(se)(se)(se)(se)效果(guo)(guo)(guo)。油(you)(you)(you)(you)脂(zhi)精煉(lian)脫(tuo)色(se)(se)(se)(se)(se)前處(chu)(chu)理的(de)(de)(de)(de)(de)(de)油(you)(you)(you)(you)脂(zhi)質(zhi)(zhi)量(liang)(liang)對脫(tuo)色(se)(se)(se)(se)(se)效率(lv)的(de)(de)(de)(de)(de)(de)影(ying)(ying)(ying)響也甚為重要。當待脫(tuo)色(se)(se)(se)(se)(se)油(you)(you)(you)(you)中殘留膠質(zhi)(zhi)、皂粒和(he)懸浮物雜質(zhi)(zhi)時(shi),這(zhe)些雜質(zhi)(zhi)會(hui)占據吸附(fu)劑的(de)(de)(de)(de)(de)(de)一部分活(huo)(huo)化表(biao)面,從而(er)降低脫(tuo)色(se)(se)(se)(se)(se)效率(lv)或者增加吸附(fu)劑用量(liang)(liang)。2, 吸附(fu)劑的(de)(de)(de)(de)(de)(de)質(zhi)(zhi)量(liang)(liang)和(he)用量(liang)(liang)吸附(fu)劑是影(ying)(ying)(ying)響脫(tuo)色(se)(se)(se)(se)(se)效果(guo)(guo)(guo)的(de)(de)(de)(de)(de)(de)關(guan)鍵的(de)(de)(de)(de)(de)(de)因素(su)。不同種(zhong)類(lei)的(de)(de)(de)(de)(de)(de)吸附(fu)劑具有各(ge)(ge)自(zi)的(de)(de)(de)(de)(de)(de)特(te)性(xing),根據油(you)(you)(you)(you)脂(zhi)脫(tuo)色(se)(se)(se)(se)(se)的(de)(de)(de)(de)(de)(de)具體要求(qiu),合理選擇吸附(fu)劑,才能(neng)經(jing)濟(ji)地獲(huo)(huo)得脫(tuo)色(se)(se)(se)(se)(se)效果(guo)(guo)(guo)。活(huo)(huo)性(xing)白土(tu)(tu)是油(you)(you)(you)(you)脂(zhi)脫(tuo)色(se)(se)(se)(se)(se)常用的(de)(de)(de)(de)(de)(de)吸附(fu)劑。不同規(gui)格(ge)的(de)(de)(de)(de)(de)(de)活(huo)(huo)性(xing)白土(tu)(tu)所表(biao)現出的(de)(de)(de)(de)(de)(de)性(xing)能(neng)各(ge)(ge)異。其活(huo)(huo)性(xing)度(du)受到(dao)原土(tu)(tu)、酸處(chu)(chu)理、水分等因素(su)的(de)(de)(de)(de)(de)(de)影(ying)(ying)(ying)響。在(zai)(zai)期望(wang)獲(huo)(huo)得高活(huo)(huo)性(xing)度(du)的(de)(de)(de)(de)(de)(de)同時(shi),還應該考慮(lv)到(dao)這(zhe)些因素(su)對油(you)(you)(you)(you)品酸值、過(guo)濾速率(lv)以及油(you)(you)(you)(you)損(sun)率(lv)的(de)(de)(de)(de)(de)(de)影(ying)(ying)(ying)響。某種(zhong)油(you)(you)(you)(you)品在(zai)(zai)特(te)定(ding)脫(tuo)色(se)(se)(se)(se)(se)條件下的(de)(de)(de)(de)(de)(de)適活(huo)(huo)性(xing)白土(tu)(tu)以及添加量(liang)(liang)一般可通過(guo)實驗室小(xiao)樣(yang)試驗加以優選。了解詳情 →2023-09-26
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軋胚機的保養與事故處理軋(ya)(ya)胚(pei)(pei)(pei)(pei)機是(shi)(shi)油廠(chang)的(de)(de)(de)關鍵(jian)設備之(zhi)(zhi)一(yi)(yi),售價高、機體(ti)笨重(zhong)(zhong)、修理費用高。所(suo)(suo)以在生(sheng)(sheng)產(chan)過程中,要(yao)(yao)(yao)(yao)精心保(bao)(bao)養(yang)以延長(chang)(chang)使用壽(shou)命,這(zhe)(zhe)對于增加(jia)(jia)效(xiao)益和降低成本等都(dou)有(you)很重(zhong)(zhong)要(yao)(yao)(yao)(yao)的(de)(de)(de)意(yi)義。軋(ya)(ya)胚(pei)(pei)(pei)(pei)機經(jing)過長(chang)(chang)期運轉,往往發(fa)生(sheng)(sheng)壓輥(gun)(gun)(gun)(gun)(gun)面兩邊(bian)磨(mo)損較為嚴重(zhong)(zhong)的(de)(de)(de)現(xian)象,從而(er)影響軋(ya)(ya)胚(pei)(pei)(pei)(pei)效(xiao)果。所(suo)(suo)以每周都(dou)應該(gai)安排一(yi)(yi)定時間,用砂輪或(huo)者其他(ta)辦法將軋(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)兩邊(bian)部分(fen)磨(mo)一(yi)(yi)磨(mo)。如果對油料(liao)(liao)(liao)(liao)清雜不(bu)(bu)(bu)好,石(shi)頭、小(xiao)鐵(tie)塊(kuai)等雜質進入軋(ya)(ya)胚(pei)(pei)(pei)(pei)機內(nei),往往造成輥(gun)(gun)(gun)(gun)(gun)面的(de)(de)(de)點蝕,致使光滑的(de)(de)(de)輥(gun)(gun)(gun)(gun)(gun)面出現(xian)凹坑,軋(ya)(ya)出的(de)(de)(de)料(liao)(liao)(liao)(liao)胚(pei)(pei)(pei)(pei)厚薄不(bu)(bu)(bu)均,影響出油,這(zhe)(zhe)時就(jiu)得更換壓輥(gun)(gun)(gun)(gun)(gun),將有(you)凹坑的(de)(de)(de)壓輥(gun)(gun)(gun)(gun)(gun)重(zhong)(zhong)新車平。壓輥(gun)(gun)(gun)(gun)(gun)輥(gun)(gun)(gun)(gun)(gun)面積硬度增大(da),車削加(jia)(jia)工比較困難。軋(ya)(ya)胚(pei)(pei)(pei)(pei)機有(you)時發(fa)生(sheng)(sheng)不(bu)(bu)(bu)吃(chi)料(liao)(liao)(liao)(liao)或(huo)者吃(chi)料(liao)(liao)(liao)(liao)少(shao)的(de)(de)(de)現(xian)象。會嚴重(zhong)(zhong)影響軋(ya)(ya)胚(pei)(pei)(pei)(pei)機的(de)(de)(de)效(xiao)率。軋(ya)(ya)胚(pei)(pei)(pei)(pei)機振動大(da)是(shi)(shi)引(yin)起壓輥(gun)(gun)(gun)(gun)(gun)不(bu)(bu)(bu)吃(chi)料(liao)(liao)(liao)(liao)的(de)(de)(de)一(yi)(yi)個(ge)重(zhong)(zhong)要(yao)(yao)(yao)(yao)原(yuan)因。抖動的(de)(de)(de)壓輥(gun)(gun)(gun)(gun)(gun),不(bu)(bu)(bu)斷地給油料(liao)(liao)(liao)(liao)一(yi)(yi)個(ge)向上(shang)的(de)(de)(de)力(li),使得油料(liao)(liao)(liao)(liao)被(bei)壓輥(gun)(gun)(gun)(gun)(gun)拋起、落(luo)下,始終在兩個(ge)壓輥(gun)(gun)(gun)(gun)(gun)之(zhi)(zhi)間跳(tiao)上(shang)跳(tiao)下。發(fa)生(sheng)(sheng)壓輥(gun)(gun)(gun)(gun)(gun)不(bu)(bu)(bu)吃(chi)料(liao)(liao)(liao)(liao)時候,應該(gai)找(zhao)出原(yuan)因,絕(jue)不(bu)(bu)(bu)能將光滑的(de)(de)(de)輥(gun)(gun)(gun)(gun)(gun)面人為地刨些(xie)坑,以此增加(jia)(jia)摩擦力(li)而(er)使之(zhi)(zhi)吃(chi)料(liao)(liao)(liao)(liao)。斷軸(zhou)和掉輥(gun)(gun)(gun)(gun)(gun)邊(bian)。為了(le)保(bao)(bao)證(zheng)軋(ya)(ya)胚(pei)(pei)(pei)(pei)的(de)(de)(de)要(yao)(yao)(yao)(yao)求,在軋(ya)(ya)輥(gun)(gun)(gun)(gun)(gun)不(bu)(bu)(bu)平直度逐漸加(jia)(jia)大(da)時,就(jiu)要(yao)(yao)(yao)(yao)增加(jia)(jia)彈簧壓力(li)。這(zhe)(zhe)樣使軸(zhou)承(cheng)處總是(shi)(shi)承(cheng)受一(yi)(yi)個(ge)徑向力(li),一(yi)(yi)旦料(liao)(liao)(liao)(liao)流不(bu)(bu)(bu)均勻,特別是(shi)(shi)進入鐵(tie)器(qi)和石(shi)子等硬物,使兩個(ge)壓輥(gun)(gun)(gun)(gun)(gun)發(fa)生(sheng)(sheng)碰撞,這(zhe)(zhe)瞬(shun)時的(de)(de)(de)沖擊(ji)力(li)是(shi)(shi)相當大(da)的(de)(de)(de)。多次(ci)的(de)(de)(de)沖擊(ji)的(de)(de)(de)結果,超過軸(zhou)的(de)(de)(de)疲勞限度,就(jiu)會發(fa)生(sheng)(sheng)斷軸(zhou)或(huo)者掉邊(bian)現(xian)象。所(suo)(suo)以應該(gai)強(qiang)調,操作(zuo)時調節(jie)軋(ya)(ya)距(ju)的(de)(de)(de)彈簧不(bu)(bu)(bu)要(yao)(yao)(yao)(yao)太緊,不(bu)(bu)(bu)要(yao)(yao)(yao)(yao)進入鐵(tie)器(qi),料(liao)(liao)(liao)(liao)流要(yao)(yao)(yao)(yao)均勻以及(ji)不(bu)(bu)(bu)要(yao)(yao)(yao)(yao)斷料(liao)(liao)(liao)(liao)等,都(dou)是(shi)(shi)防止(zhi)此類事故發(fa)生(sheng)(sheng)的(de)(de)(de)有(you)效(xiao)措施(shi)。了解詳情 →2023-09-26
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什么是層蝶式汽提塔?層(ceng)(ceng)蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)是(shi)國內(nei)(nei)(nei)浸出(chu)(chu)油(you)(you)(you)(you)(you)廠使(shi)(shi)用(yong)(yong)較多的(de)(de)(de)(de)一(yi)(yi)(yi)種(zhong)(zhong)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)設備。若按(an)照水(shui)(shui)(shui)蒸(zheng)(zheng)氣對(dui)混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)的(de)(de)(de)(de)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)次(ci)(ci)數(shu),層(ceng)(ceng)蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)可分為(wei)單段式(shi)(shi)(shi)和(he)(he)(he)雙段式(shi)(shi)(shi)兩種(zhong)(zhong)。雙段蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta),它主(zhu)要有頂(ding)蓋、上塔(ta)(ta)(ta)(ta)(ta)體(ti)、中(zhong)(zhong)(zhong)塔(ta)(ta)(ta)(ta)(ta)體(ti)、下塔(ta)(ta)(ta)(ta)(ta)體(ti)以及底(di)蓋所組(zu)(zu)(zu)成(cheng)。在(zai)上塔(ta)(ta)(ta)(ta)(ta)體(ti)和(he)(he)(he)下塔(ta)(ta)(ta)(ta)(ta)體(ti)內(nei)(nei)(nei)各(ge)有6-9組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)。每組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)都由滯流盤(pan)(pan)(pan)、錐形分配(pei)碟(die)(die)(die)(die)和(he)(he)(he)環形分配(pei)碟(die)(die)(die)(die)組(zu)(zu)(zu)成(cheng)。上、下塔(ta)(ta)(ta)(ta)(ta)體(ti)的(de)(de)(de)(de)外殼(ke)均裝(zhuang)(zhuang)有夾(jia)套,在(zai)夾(jia)套中(zhong)(zhong)(zhong)通(tong)(tong)入(ru)343-441kPa的(de)(de)(de)(de)加(jia)熱(re)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)對(dui)塔(ta)(ta)(ta)(ta)(ta)內(nei)(nei)(nei)的(de)(de)(de)(de)混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)進行間接(jie)(jie)(jie)加(jia)熱(re)。中(zhong)(zhong)(zhong)塔(ta)(ta)(ta)(ta)(ta)體(ti)和(he)(he)(he)底(di)盤(pan)(pan)(pan)內(nei)(nei)(nei)各(ge)有一(yi)(yi)(yi)組(zu)(zu)(zu)直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)噴入(ru)裝(zhuang)(zhuang)置。這組(zu)(zu)(zu)裝(zhuang)(zhuang)置由集油(you)(you)(you)(you)(you)盤(pan)(pan)(pan)、導流管、中(zhong)(zhong)(zhong)心管、直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)噴管組(zu)(zu)(zu)成(cheng)。來自(zi)第二(er)蒸(zheng)(zheng)發器的(de)(de)(de)(de)混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you),進入(ru)層(ceng)(ceng)蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)的(de)(de)(de)(de)進油(you)(you)(you)(you)(you)管之(zhi)(zhi)后,自(zi)上而下逐次(ci)(ci)流經每一(yi)(yi)(yi)組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)。到達(da)(da)中(zhong)(zhong)(zhong)塔(ta)(ta)(ta)(ta)(ta)體(ti)的(de)(de)(de)(de)集油(you)(you)(you)(you)(you)盤(pan)(pan)(pan)底(di)的(de)(de)(de)(de)阻攔(lan),被(bei)(bei)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)出(chu)(chu)的(de)(de)(de)(de)溶劑蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)水(shui)(shui)(shui)蒸(zheng)(zheng)氣繞過(guo)(guo)(guo)(guo)集油(you)(you)(you)(you)(you)盤(pan)(pan)(pan)向(xiang)上移動,而油(you)(you)(you)(you)(you)被(bei)(bei)阻留落下。之(zhi)(zhi)后,混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)又沿(yan)著(zhu)下塔(ta)(ta)(ta)(ta)(ta)體(ti)內(nei)(nei)(nei)的(de)(de)(de)(de)各(ge)組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)逐次(ci)(ci)流下,到達(da)(da)底(di)蓋內(nei)(nei)(nei),在(zai)直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)噴入(ru)裝(zhuang)(zhuang)置中(zhong)(zhong)(zhong)又一(yi)(yi)(yi)次(ci)(ci)被(bei)(bei)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti),汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)出(chu)(chu)的(de)(de)(de)(de)溶劑蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)水(shui)(shui)(shui)蒸(zheng)(zheng)氣自(zi)下而上逐級通(tong)(tong)過(guo)(guo)(guo)(guo)每一(yi)(yi)(yi)組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)的(de)(de)(de)(de)空隙,與碟(die)(die)(die)(die)盤(pan)(pan)(pan)表面(mian)流下的(de)(de)(de)(de)液(ye)膜狀混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)充分接(jie)(jie)(jie)觸,使(shi)(shi)混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)得到進一(yi)(yi)(yi)步(bu)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)。到達(da)(da)頂(ding)部(bu)的(de)(de)(de)(de)混(hun)合(he)(he)(he)(he)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)通(tong)(tong)過(guo)(guo)(guo)(guo)出(chu)(chu)氣管進入(ru)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)冷(leng)凝器。經汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)后的(de)(de)(de)(de)浸出(chu)(chu)毛油(you)(you)(you)(you)(you)從底(di)部(bu)的(de)(de)(de)(de)出(chu)(chu)油(you)(you)(you)(you)(you)管通(tong)(tong)過(guo)(guo)(guo)(guo)液(ye)封裝(zhuang)(zhuang)置排出(chu)(chu)。層(ceng)(ceng)蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)結(jie)構(gou)較為(wei)簡單,操作方便,工藝效果好。但(dan)是(shi)必須注意(yi)的(de)(de)(de)(de):每一(yi)(yi)(yi)組(zu)(zu)(zu)碟(die)(die)(die)(die)盤(pan)(pan)(pan)的(de)(de)(de)(de)制造(zao)質量和(he)(he)(he)是(shi)否水(shui)(shui)(shui)平(ping)安裝(zhuang)(zhuang),將影(ying)響混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)液(ye)膜的(de)(de)(de)(de)形成(cheng)與氣液(ye)相接(jie)(jie)(jie)觸的(de)(de)(de)(de)面(mian)積;直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)含(han)(han)水(shui)(shui)(shui),會造(zao)成(cheng)毛油(you)(you)(you)(you)(you)中(zhong)(zhong)(zhong)磷脂的(de)(de)(de)(de)析出(chu)(chu);直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)壓力過(guo)(guo)(guo)(guo)高或者用(yong)(yong)量過(guo)(guo)(guo)(guo)大(da),會形成(cheng)液(ye)泛現象;混(hun)合(he)(he)(he)(he)油(you)(you)(you)(you)(you)中(zhong)(zhong)(zhong)含(han)(han)雜太多,則使(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)碟(die)(die)(die)(die)盤(pan)(pan)(pan)表面(mian)的(de)(de)(de)(de)結(jie)垢(gou)現象嚴(yan)重(zhong),毛油(you)(you)(you)(you)(you)質量降(jiang)低(di);若采用(yong)(yong)多段式(shi)(shi)(shi),應使(shi)(shi)上層(ceng)(ceng)直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)壓力低(di)于下層(ceng)(ceng)。直(zhi)接(jie)(jie)(jie)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)好采用(yong)(yong)低(di)壓過(guo)(guo)(guo)(guo)熱(re)蒸(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)(qi)。層(ceng)(ceng)蝶式(shi)(shi)(shi)汽(qi)(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)(ti)塔(ta)(ta)(ta)(ta)(ta)在(zai)檢修(xiu)時碟(die)(die)(die)(die)盤(pan)(pan)(pan)的(de)(de)(de)(de)清(qing)理比較麻煩。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)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)精煉(lian)脫(tuo)(tuo)臭在(zai)任何情(qing)況下(xia),蒸(zheng)(zheng)餾(liu)(liu)(liu)引起(qi)的(de)(de)損(sun)(sun)(sun)耗(hao)(hao)(hao)均取決于(yu)脫(tuo)(tuo)臭時(shi)間(jian)、通氣速(su)率、操(cao)作壓力和(he)溫(wen)度(du)、油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)中游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸和(he)不(bu)皂化物的(de)(de)含(han)量以及(ji)甘油(you)(you)三脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸酯的(de)(de)組分等因(yin)素。在(zai)汽(qi)提(ti)(ti)脫(tuo)(tuo)臭過(guo)程中,有相(xiang)當數(shu)量的(de)(de)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)(shi)由于(yu)飛濺在(zai)汽(qi)提(ti)(ti)蒸(zheng)(zheng)汽(qi)中而損(sun)(sun)(sun)失的(de)(de)。因(yin)此,脫(tuo)(tuo)臭總(zong)損(sun)(sun)(sun)耗(hao)(hao)(hao)包括(kuo)蒸(zheng)(zheng)餾(liu)(liu)(liu)損(sun)(sun)(sun)耗(hao)(hao)(hao)和(he)飛濺損(sun)(sun)(sun)耗(hao)(hao)(hao)。不(bu)同(tong)的(de)(de)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)、設備以及(ji)不(bu)同(tong)的(de)(de)操(cao)作條(tiao)件,其脫(tuo)(tuo)臭總(zong)損(sun)(sun)(sun)耗(hao)(hao)(hao)是(shi)(shi)不(bu)盡(jin)一(yi)(yi)致的(de)(de)。汽(qi)提(ti)(ti)脫(tuo)(tuo)臭過(guo)程中,低(di)分子的(de)(de)醛類、酮類以及(ji)游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸容易蒸(zheng)(zheng)餾(liu)(liu)(liu)出(chu)來,隨著(zhu)脫(tuo)(tuo)臭過(guo)程的(de)(de)加深,油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)內原有的(de)(de)游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸經(jing)過(guo)脫(tuo)(tuo)臭后(hou)幾(ji)乎完全被除去,因(yin)此蒸(zheng)(zheng)餾(liu)(liu)(liu)損(sun)(sun)(sun)耗(hao)(hao)(hao)硬包括(kuo)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)臭前的(de)(de)游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸的(de)(de)含(han)量。此外,根(gen)據反(fan)應方程可(ke)知(zhi),汽(qi)提(ti)(ti)蒸(zheng)(zheng)汽(qi)不(bu)可(ke)避免地要引起(qi)部(bu)(bu)分油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)水(shui)解,因(yin)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)水(shui)解所生(sheng)成(cheng)(cheng)的(de)(de)這(zhe)部(bu)(bu)分脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸,也構(gou)成(cheng)(cheng)了蒸(zheng)(zheng)餾(liu)(liu)(liu)損(sun)(sun)(sun)耗(hao)(hao)(hao)。根(gen)據經(jing)驗,當游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸含(han)量降低(di)至(zhi)0.015%-0.03%時(shi),游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸的(de)(de)脫(tuo)(tuo)除速(su)率與(yu)裂解生(sheng)成(cheng)(cheng)的(de)(de)速(su)率即達到平衡。蒸(zheng)(zheng)餾(liu)(liu)(liu)損(sun)(sun)(sun)耗(hao)(hao)(hao)還包括(kuo)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)(zhi)中存在(zai)的(de)(de)甾醇(chun)和(he)其他不(bu)皂化物,盡(jin)管這(zhe)部(bu)(bu)分物質(zhi)較游離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)酸難于(yu)揮發(fa),但是(shi)(shi)在(zai)脫(tuo)(tuo)臭餾(liu)(liu)(liu)出(chu)物卻占有一(yi)(yi)定(ding)的(de)(de)比(bi)例,它們構(gou)成(cheng)(cheng)的(de)(de)蒸(zheng)(zheng)餾(liu)(liu)(liu)損(sun)(sun)(sun)耗(hao)(hao)(hao)取決于(yu)脫(tuo)(tuo)臭操(cao)作條(tiao)件。以大豆油(you)(you)為例,在(zai)較高的(de)(de)脫(tuo)(tuo)臭溫(wen)度(du)下(xia),甾醇(chun)及(ji)不(bu)皂化物蒸(zheng)(zheng)餾(liu)(liu)(liu)脫(tuo)(tuo)除率約(yue)為60%,而在(zai)一(yi)(yi)般操(cao)作條(tiao)件下(xia)脫(tuo)(tuo)出(chu)率較低(di)。了解詳情 →2019-03-05
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油脂加工廠衛生要求油(you)(you)脂(zhi)加(jia)工廠(chang)的安(an)全(quan)衛(wei)生(sheng)要(yao)(yao)求(qiu)(qiu)是(shi)油(you)(you)脂(zhi)在(zai)“原料(liao)—加(jia)工—成品—包裝(zhuang)—儲運(yun)—市場(chang)(chang)“的全(quan)流程(cheng)中(zhong),物料(liao)自始至(zhi)終(zhong)處于(yu)安(an)全(quan)衛(wei)生(sheng)和不被污染(ran)的環境(jing)之中(zhong),油(you)(you)廠(chang)設(she)(she)計(ji)(ji)是(shi)在(zai)油(you)(you)脂(zhi)加(jia)工中(zhong)對(dui)安(an)全(quan)衛(wei)生(sheng)至(zhi)關重要(yao)(yao)的保(bao)障,所(suo)以設(she)(she)計(ji)(ji)中(zhong)必(bi)須要(yao)(yao)對(dui)環境(jing)、生(sheng)產設(she)(she)施、加(jia)工工藝(yi)以及過程(cheng)、檢驗設(she)(she)備(bei)、貯運(yun)過程(cheng)等要(yao)(yao)求(qiu)(qiu)條件按照油(you)(you)脂(zhi)法令、規(gui)范執行。1,廠(chang)區(qu)環境(jing) 油(you)(you)廠(chang)廠(chang)址(zhi)要(yao)(yao)選擇地(di)(di)勢干(gan)燥、交通(tong)方(fang)便、有充足水源的地(di)(di)區(qu),廠(chang)區(qu)周圍(wei)不得有污染(ran)源,要(yao)(yao)遠離有害場(chang)(chang)所(suo)。廠(chang)區(qu)環境(jing)要(yao)(yao)衛(wei)生(sheng)清(qing)潔(jie),物品堆放(fang)整齊,加(jia)工后廢棄(qi)物存(cun)放(fang)要(yao)(yao)遠離生(sheng)產車(che)(che)間(jian),且不得位于(yu)車(che)(che)間(jian)上風(feng)向(xiang)。2,車(che)(che)間(jian)環境(jing) 車(che)(che)間(jian)應(ying)(ying)(ying)保(bao)持整潔(jie),場(chang)(chang)地(di)(di)應(ying)(ying)(ying)堅硬、平坦,排(pai)水、通(tong)風(feng)良好(hao)。車(che)(che)間(jian)應(ying)(ying)(ying)有充足的空(kong)間(jian),便于(yu)設(she)(she)備(bei)安(an)裝(zhuang)、維護、物料(liao)儲存(cun)運(yun)輸、衛(wei)生(sheng)清(qing)理人員通(tong)行。如(ru)場(chang)(chang)地(di)(di)要(yao)(yao)易于(yu)清(qing)洗(xi)消毒(du)、防霉、防腐(fu),要(yao)(yao)具備(bei)消毒(du)、防蠅、防鼠(shu)、更(geng)衣、洗(xi)滌污水排(pai)放(fang)、存(cun)放(fang)廢棄(qi)物的設(she)(she)施。車(che)(che)間(jian)環境(jing)溫度、濕度、通(tong)風(feng)條件應(ying)(ying)(ying)該(gai)滿足生(sheng)產工藝(yi)和規(gui)程(cheng)要(yao)(yao)求(qiu)(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,十三屆全(quan)國(guo)(guo)(guo)(guo)(guo)人大(da)一次會議召(zhao)開第四次全(quan)體會議,聽取國(guo)(guo)(guo)(guo)(guo)務委員王勇關于(yu)國(guo)(guo)(guo)(guo)(guo)務院機構改(gai)革方案的(de)(de)說明。該(gai)方案顯示(shi),將國(guo)(guo)(guo)(guo)(guo)家糧(liang)(liang)食局的(de)(de)職(zhi)責(ze),國(guo)(guo)(guo)(guo)(guo)家發展(zhan)和(he)改(gai)革委員會的(de)(de)組(zu)織實施國(guo)(guo)(guo)(guo)(guo)家戰(zhan)略物(wu)資收儲、輪(lun)(lun)換和(he)管理,管理國(guo)(guo)(guo)(guo)(guo)家糧(liang)(liang)食、棉花(hua)和(he)食糖儲備等職(zhi)責(ze),以及民政部(bu)(bu)、商務部(bu)(bu)、國(guo)(guo)(guo)(guo)(guo)家能源(yuan)局等部(bu)(bu)門的(de)(de)組(zu)織實施戰(zhan)略和(he)應急(ji)儲備物(wu)資收儲、輪(lun)(lun)換和(he)日常管理職(zhi)責(ze)整合,組(zu)建國(guo)(guo)(guo)(guo)(guo)家糧(liang)(liang)食和(he)物(wu)資儲備局,由(you)國(guo)(guo)(guo)(guo)(guo)家發展(zhan)和(he)改(gai)革委員會管理。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)(dian)(dian)機(ji)(ji)(ji)(ji)在糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)中(zhong)可(ke)以稱(cheng)得上是(shi)一個(ge)非常(chang)重要(yao)(yao)的(de)(de)(de)部件(jian)(jian),它(ta)是(shi)帶(dai)動(dong)(dong)(dong)整(zheng)(zheng)(zheng)個(ge)糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)運轉(zhuan)的(de)(de)(de)關鍵。因此選擇好電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)對(dui)糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)來說是(shi)至關重要(yao)(yao)的(de)(de)(de)。不只是(shi)因為其自(zi)身的(de)(de)(de)正常(chang)運轉(zhuan)有(you)必要(yao)(yao)還因為糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)能否正常(chang)工(gong)作(zuo)關系(xi)著整(zheng)(zheng)(zheng)個(ge)糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)正常(chang)運轉(zhuan)和(he)(he)工(gong)作(zuo)效率(lv)。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)作(zuo)為糧(liang)(liang)(liang)食(shi)(shi)輸送(song)機(ji)(ji)(ji)(ji)的(de)(de)(de)驅動(dong)(dong)(dong)裝(zhuang)(zhuang)置,在選用(yong)(yong)的(de)(de)(de)時候盡量(liang)選用(yong)(yong)有(you)短(duan)路(lu)(lu)(lu)裝(zhuang)(zhuang)置的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji),這樣做的(de)(de)(de)原因是(shi)因為有(you)短(duan)路(lu)(lu)(lu)裝(zhuang)(zhuang)置的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)有(you)一定(ding)(ding)的(de)(de)(de)保(bao)(bao)護(hu)裝(zhuang)(zhuang)置,主要(yao)(yao)體現(xian)在以下幾點。1、短(duan)路(lu)(lu)(lu)保(bao)(bao)護(hu)宜采(cai)用(yong)(yong)熔斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)低(di)壓(ya)(ya)斷(duan)(duan)(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)瞬(shun)動(dong)(dong)(dong)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)脫扣(kou)(kou)器(qi)(qi)(qi)(qi)(qi)(qi),也可(ke)采(cai)用(yong)(yong)瞬(shun)動(dong)(dong)(dong)元件(jian)(jian)的(de)(de)(de)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)。熔斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)(qi)至少在兩相上裝(zhuang)(zhuang)設。2、熔斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)(qi)熔斷(duan)(duan)(duan)體的(de)(de)(de)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)應(ying)大(da)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),且其安秒特性曲線(xian)計算偏差后,略高(gao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)和(he)(he)啟動(dong)(dong)(dong)時間的(de)(de)(de)交(jiao)(jiao)點。如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)頻繁,熔斷(duan)(duan)(duan)體的(de)(de)(de)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)再加大(da)1~2級(ji)。瞬(shun)時電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)脫扣(kou)(kou)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)瞬(shun)動(dong)(dong)(dong)元件(jian)(jian)的(de)(de)(de)整(zheng)(zheng)(zheng)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),應(ying)取電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)2~2.5倍。3、熱繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)過(guo)載(zai)(zai)脫扣(kou)(kou)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)整(zheng)(zheng)(zheng)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),不小于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),其值應(ying)接(jie)近(jin)額(e)(e)定(ding)(ding)值。控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)宜采(cai)用(yong)(yong)接(jie)觸器(qi)(qi)(qi)(qi)(qi)(qi)、啟動(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)專用(yong)(yong)開關,一組(zu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)可(ke)共(gong)用(yong)(yong)一套(tao)(tao)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi),控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)應(ying)能接(jie)通和(he)(he)斷(duan)(duan)(duan)開電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)堵轉(zhuan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)。4、連續(xu)運行的(de)(de)(de)帶(dai)式輸送(song)機(ji)(ji)(ji)(ji),采(cai)用(yong)(yong)熔斷(duan)(duan)(duan)器(qi)(qi)(qi)(qi)(qi)(qi)保(bao)(bao)護(hu)或(huo)短(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)保(bao)(bao)護(hu),宜裝(zhuang)(zhuang)設斷(duan)(duan)(duan)相熱繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)保(bao)(bao)護(hu)或(huo)溫度保(bao)(bao)護(hu)。低(di)壓(ya)(ya)保(bao)(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)宜采(cai)用(yong)(yong)低(di)壓(ya)(ya)斷(duan)(duan)(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)欠電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)脫扣(kou)(kou)器(qi)(qi)(qi)(qi)(qi)(qi)或(huo)接(jie)觸器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)線(xian)圈,其控(kong)制(zhi)回路(lu)(lu)(lu)宜采(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)主回路(lu)(lu)(lu)供電(dian)(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)及其控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)宜共(gong)用(yong)(yong)一套(tao)(tao)隔(ge)離(li)器(qi)(qi)(qi)(qi)(qi)(qi)。5、低(di)壓(ya)(ya)交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)回路(lu)(lu)(lu)上應(ying)在每臺電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)上裝(zhuang)(zhuang)隔(ge)離(li)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi),或(huo)共(gong)用(yong)(yong)一套(tao)(tao)短(duan)路(lu)(lu)(lu)保(bao)(bao)護(hu)的(de)(de)(de)一組(zu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)共(gong)用(yong)(yong)一套(tao)(tao)隔(ge)離(li)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)主回路(lu)(lu)(lu)導線(xian)的(de)(de)(de)載(zai)(zai)流(liu)(liu)(liu)(liu)量(liang)不應(ying)小于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)額(e)(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),并(bing)對(dui)其機(ji)(ji)(ji)(ji)械強度、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)(he)在短(duan)路(lu)(lu)(lu)條件(jian)(jian)的(de)(de)(de)熱穩定(ding)(ding)性進行校驗(yan)。了解詳情 →2019-03-05