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影響油脂精煉吸附脫色的因素有哪些油(you)(you)脂(zhi)(zhi)(zhi)(zhi)精(jing)煉過程(cheng)中(zhong)脫(tuo)(tuo)(tuo)色(se)在(zai)(zai)于獲得油(you)(you)脂(zhi)(zhi)(zhi)(zhi)色(se)澤的(de)(de)(de)(de)改善和(he)(he)為(wei)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)(tuo)臭(chou)提(ti)供合格的(de)(de)(de)(de)原(yuan)料油(you)(you)品。因(yin)(yin)此,油(you)(you)脂(zhi)(zhi)(zhi)(zhi)精(jing)煉過程(cheng)中(zhong)脫(tuo)(tuo)(tuo)色(se)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)色(se)度(du)(du)標準的(de)(de)(de)(de)制訂,需要根據(ju)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)以及其制品的(de)(de)(de)(de)質(zhi)量(liang)要求,以及力求在(zai)(zai)低(di)的(de)(de)(de)(de)損耗下(xia)獲得油(you)(you)色(se)在(zai)(zai)大限度(du)(du)上的(de)(de)(de)(de)改善為(wei)度(du)(du)。1,油(you)(you)的(de)(de)(de)(de)品質(zhi)以及前(qian)處(chu)(chu)(chu)理油(you)(you)中(zhong)的(de)(de)(de)(de)天(tian)然色(se)素(su)較易脫(tuo)(tuo)(tuo)除(chu),而油(you)(you)料儲存(cun)和(he)(he)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)生產過程(cheng)中(zhong)形成的(de)(de)(de)(de)新生色(se)素(su)或(huo)者因(yin)(yin)為(wei)氧化而固定了(le)的(de)(de)(de)(de)色(se)素(su),一般比較難脫(tuo)(tuo)(tuo)除(chu)。由此可見(jian),提(ti)高(gao)毛(mao)油(you)(you)質(zhi)量(liang),避免油(you)(you)脂(zhi)(zhi)(zhi)(zhi)在(zai)(zai)加工環節中(zhong)的(de)(de)(de)(de)氧化,才能(neng)確保(bao)脫(tuo)(tuo)(tuo)色(se)效(xiao)果(guo)。油(you)(you)脂(zhi)(zhi)(zhi)(zhi)精(jing)煉脫(tuo)(tuo)(tuo)色(se)前(qian)處(chu)(chu)(chu)理的(de)(de)(de)(de)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)質(zhi)量(liang)對脫(tuo)(tuo)(tuo)色(se)效(xiao)率(lv)(lv)的(de)(de)(de)(de)影(ying)響(xiang)也(ye)甚為(wei)重(zhong)要。當待脫(tuo)(tuo)(tuo)色(se)油(you)(you)中(zhong)殘(can)留膠質(zhi)、皂粒和(he)(he)懸浮物(wu)雜(za)質(zhi)時(shi),這(zhe)些雜(za)質(zhi)會占據(ju)吸(xi)附(fu)劑(ji)的(de)(de)(de)(de)一部分活(huo)(huo)(huo)化表面,從而降低(di)脫(tuo)(tuo)(tuo)色(se)效(xiao)率(lv)(lv)或(huo)者增加吸(xi)附(fu)劑(ji)用(yong)量(liang)。2, 吸(xi)附(fu)劑(ji)的(de)(de)(de)(de)質(zhi)量(liang)和(he)(he)用(yong)量(liang)吸(xi)附(fu)劑(ji)是影(ying)響(xiang)脫(tuo)(tuo)(tuo)色(se)效(xiao)果(guo)的(de)(de)(de)(de)關鍵(jian)的(de)(de)(de)(de)因(yin)(yin)素(su)。不(bu)(bu)同種類的(de)(de)(de)(de)吸(xi)附(fu)劑(ji)具有(you)各自(zi)的(de)(de)(de)(de)特(te)性,根據(ju)油(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)(tuo)色(se)的(de)(de)(de)(de)具體要求,合理選擇吸(xi)附(fu)劑(ji),才能(neng)經濟地獲得脫(tuo)(tuo)(tuo)色(se)效(xiao)果(guo)。活(huo)(huo)(huo)性白土(tu)是油(you)(you)脂(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)(tuo)色(se)常(chang)用(yong)的(de)(de)(de)(de)吸(xi)附(fu)劑(ji)。不(bu)(bu)同規格的(de)(de)(de)(de)活(huo)(huo)(huo)性白土(tu)所表現出的(de)(de)(de)(de)性能(neng)各異。其活(huo)(huo)(huo)性度(du)(du)受到原(yuan)土(tu)、酸處(chu)(chu)(chu)理、水分等因(yin)(yin)素(su)的(de)(de)(de)(de)影(ying)響(xiang)。在(zai)(zai)期望獲得高(gao)活(huo)(huo)(huo)性度(du)(du)的(de)(de)(de)(de)同時(shi),還應該考(kao)慮到這(zhe)些因(yin)(yin)素(su)對油(you)(you)品酸值、過濾(lv)速(su)率(lv)(lv)以及油(you)(you)損率(lv)(lv)的(de)(de)(de)(de)影(ying)響(xiang)。某種油(you)(you)品在(zai)(zai)特(te)定脫(tuo)(tuo)(tuo)色(se)條件(jian)下(xia)的(de)(de)(de)(de)適活(huo)(huo)(huo)性白土(tu)以及添加量(liang)一般可通過實驗室小樣試驗加以優選。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)機是(shi)油廠(chang)的(de)(de)(de)關鍵(jian)設備之(zhi)(zhi)一,售價高、機體(ti)笨重(zhong)(zhong)、修(xiu)理費(fei)用高。所以在生(sheng)產(chan)過程中(zhong),要精(jing)心保養以延長使(shi)用壽(shou)命,這對于增(zeng)加效益(yi)和(he)降低成(cheng)本等都(dou)(dou)有(you)(you)很重(zhong)(zhong)要的(de)(de)(de)意義。軋(ya)(ya)胚(pei)機經過長期運轉,往(wang)(wang)往(wang)(wang)發(fa)生(sheng)壓(ya)(ya)輥(gun)(gun)(gun)面兩(liang)邊磨(mo)損較為(wei)嚴重(zhong)(zhong)的(de)(de)(de)現象,從(cong)而影響(xiang)軋(ya)(ya)胚(pei)效果(guo)。所以每周都(dou)(dou)應(ying)該(gai)安排一定時(shi)間(jian),用砂輪(lun)或者其他辦法將(jiang)軋(ya)(ya)輥(gun)(gun)(gun)兩(liang)邊部分(fen)磨(mo)一磨(mo)。如果(guo)對油料(liao)(liao)清雜不好(hao),石頭、小(xiao)鐵塊等雜質進入(ru)軋(ya)(ya)胚(pei)機內,往(wang)(wang)往(wang)(wang)造成(cheng)輥(gun)(gun)(gun)面的(de)(de)(de)點蝕(shi),致使(shi)光(guang)滑(hua)的(de)(de)(de)輥(gun)(gun)(gun)面出(chu)現凹坑(keng),軋(ya)(ya)出(chu)的(de)(de)(de)料(liao)(liao)胚(pei)厚薄不均,影響(xiang)出(chu)油,這時(shi)就得(de)更換壓(ya)(ya)輥(gun)(gun)(gun),將(jiang)有(you)(you)凹坑(keng)的(de)(de)(de)壓(ya)(ya)輥(gun)(gun)(gun)重(zhong)(zhong)新車平。壓(ya)(ya)輥(gun)(gun)(gun)輥(gun)(gun)(gun)面積(ji)硬度(du)(du)增(zeng)大(da),車削加工比(bi)較困(kun)難。軋(ya)(ya)胚(pei)機有(you)(you)時(shi)發(fa)生(sheng)不吃料(liao)(liao)或者吃料(liao)(liao)少的(de)(de)(de)現象。會(hui)嚴重(zhong)(zhong)影響(xiang)軋(ya)(ya)胚(pei)機的(de)(de)(de)效率。軋(ya)(ya)胚(pei)機振動大(da)是(shi)引起壓(ya)(ya)輥(gun)(gun)(gun)不吃料(liao)(liao)的(de)(de)(de)一個(ge)重(zhong)(zhong)要原(yuan)因。抖動的(de)(de)(de)壓(ya)(ya)輥(gun)(gun)(gun),不斷(duan)地(di)給油料(liao)(liao)一個(ge)向(xiang)上的(de)(de)(de)力,使(shi)得(de)油料(liao)(liao)被壓(ya)(ya)輥(gun)(gun)(gun)拋起、落下(xia),始終在兩(liang)個(ge)壓(ya)(ya)輥(gun)(gun)(gun)之(zhi)(zhi)間(jian)跳上跳下(xia)。發(fa)生(sheng)壓(ya)(ya)輥(gun)(gun)(gun)不吃料(liao)(liao)時(shi)候,應(ying)該(gai)找(zhao)出(chu)原(yuan)因,絕不能將(jiang)光(guang)滑(hua)的(de)(de)(de)輥(gun)(gun)(gun)面人為(wei)地(di)刨些坑(keng),以此增(zeng)加摩擦(ca)力而使(shi)之(zhi)(zhi)吃料(liao)(liao)。斷(duan)軸(zhou)和(he)掉輥(gun)(gun)(gun)邊。為(wei)了保證軋(ya)(ya)胚(pei)的(de)(de)(de)要求,在軋(ya)(ya)輥(gun)(gun)(gun)不平直度(du)(du)逐漸加大(da)時(shi),就要增(zeng)加彈簧壓(ya)(ya)力。這樣使(shi)軸(zhou)承處總是(shi)承受一個(ge)徑向(xiang)力,一旦(dan)料(liao)(liao)流不均勻,特別是(shi)進入(ru)鐵器和(he)石子等硬物,使(shi)兩(liang)個(ge)壓(ya)(ya)輥(gun)(gun)(gun)發(fa)生(sheng)碰(peng)撞(zhuang),這瞬(shun)時(shi)的(de)(de)(de)沖(chong)擊力是(shi)相(xiang)當大(da)的(de)(de)(de)。多次的(de)(de)(de)沖(chong)擊的(de)(de)(de)結果(guo),超過軸(zhou)的(de)(de)(de)疲勞限度(du)(du),就會(hui)發(fa)生(sheng)斷(duan)軸(zhou)或者掉邊現象。所以應(ying)該(gai)強調(diao),操作時(shi)調(diao)節(jie)軋(ya)(ya)距的(de)(de)(de)彈簧不要太緊,不要進入(ru)鐵器,料(liao)(liao)流要均勻以及不要斷(duan)料(liao)(liao)等,都(dou)(dou)是(shi)防(fang)止此類(lei)事(shi)故(gu)發(fa)生(sheng)的(de)(de)(de)有(you)(you)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)(ceng)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)是國內(nei)浸出油(you)(you)(you)廠使用(yong)(yong)較(jiao)(jiao)多的(de)(de)(de)一(yi)種汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)設備(bei)。若(ruo)按照水(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)氣對混(hun)(hun)(hun)合(he)油(you)(you)(you)的(de)(de)(de)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)次數,層(ceng)(ceng)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)可分為(wei)單(dan)段(duan)(duan)式(shi)和雙段(duan)(duan)式(shi)兩種。雙段(duan)(duan)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta),它(ta)主要有頂蓋、上(shang)塔(ta)(ta)體(ti)(ti)(ti)(ti)、中(zhong)塔(ta)(ta)體(ti)(ti)(ti)(ti)、下(xia)塔(ta)(ta)體(ti)(ti)(ti)(ti)以及底(di)蓋所組(zu)(zu)(zu)(zu)成(cheng)。在(zai)上(shang)塔(ta)(ta)體(ti)(ti)(ti)(ti)和下(xia)塔(ta)(ta)體(ti)(ti)(ti)(ti)內(nei)各(ge)(ge)有6-9組(zu)(zu)(zu)(zu)碟(die)盤(pan)。每組(zu)(zu)(zu)(zu)碟(die)盤(pan)都由滯流盤(pan)、錐形分配碟(die)和環形分配碟(die)組(zu)(zu)(zu)(zu)成(cheng)。上(shang)、下(xia)塔(ta)(ta)體(ti)(ti)(ti)(ti)的(de)(de)(de)外殼(ke)均(jun)裝有夾套(tao)(tao),在(zai)夾套(tao)(tao)中(zhong)通(tong)(tong)入(ru)343-441kPa的(de)(de)(de)加熱蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)對塔(ta)(ta)內(nei)的(de)(de)(de)混(hun)(hun)(hun)合(he)油(you)(you)(you)進行(xing)間接(jie)(jie)(jie)加熱。中(zhong)塔(ta)(ta)體(ti)(ti)(ti)(ti)和底(di)盤(pan)內(nei)各(ge)(ge)有一(yi)組(zu)(zu)(zu)(zu)直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴(pen)入(ru)裝置(zhi)。這組(zu)(zu)(zu)(zu)裝置(zhi)由集油(you)(you)(you)盤(pan)、導(dao)流管(guan)、中(zhong)心管(guan)、直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴(pen)管(guan)組(zu)(zu)(zu)(zu)成(cheng)。來自第二蒸(zheng)(zheng)(zheng)(zheng)發器的(de)(de)(de)混(hun)(hun)(hun)合(he)油(you)(you)(you),進入(ru)層(ceng)(ceng)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)的(de)(de)(de)進油(you)(you)(you)管(guan)之后,自上(shang)而(er)下(xia)逐次流經(jing)每一(yi)組(zu)(zu)(zu)(zu)碟(die)盤(pan)。到(dao)達中(zhong)塔(ta)(ta)體(ti)(ti)(ti)(ti)的(de)(de)(de)集油(you)(you)(you)盤(pan)底(di)的(de)(de)(de)阻(zu)攔,被(bei)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)出的(de)(de)(de)溶(rong)劑蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)和水(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)氣繞過(guo)集油(you)(you)(you)盤(pan)向上(shang)移(yi)動,而(er)油(you)(you)(you)被(bei)阻(zu)留落下(xia)。之后,混(hun)(hun)(hun)合(he)油(you)(you)(you)又(you)沿著下(xia)塔(ta)(ta)體(ti)(ti)(ti)(ti)內(nei)的(de)(de)(de)各(ge)(ge)組(zu)(zu)(zu)(zu)碟(die)盤(pan)逐次流下(xia),到(dao)達底(di)蓋內(nei),在(zai)直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)噴(pen)入(ru)裝置(zhi)中(zhong)又(you)一(yi)次被(bei)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti),汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)出的(de)(de)(de)溶(rong)劑蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)和水(shui)(shui)蒸(zheng)(zheng)(zheng)(zheng)氣自下(xia)而(er)上(shang)逐級通(tong)(tong)過(guo)每一(yi)組(zu)(zu)(zu)(zu)碟(die)盤(pan)的(de)(de)(de)空隙,與(yu)碟(die)盤(pan)表(biao)面流下(xia)的(de)(de)(de)液(ye)(ye)膜狀混(hun)(hun)(hun)合(he)油(you)(you)(you)充分接(jie)(jie)(jie)觸,使混(hun)(hun)(hun)合(he)油(you)(you)(you)得到(dao)進一(yi)步汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)。到(dao)達頂部的(de)(de)(de)混(hun)(hun)(hun)合(he)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)通(tong)(tong)過(guo)出氣管(guan)進入(ru)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)冷凝器。經(jing)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)后的(de)(de)(de)浸出毛油(you)(you)(you)從底(di)部的(de)(de)(de)出油(you)(you)(you)管(guan)通(tong)(tong)過(guo)液(ye)(ye)封裝置(zhi)排出。層(ceng)(ceng)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)結構(gou)較(jiao)(jiao)為(wei)簡單(dan),操(cao)作方(fang)便,工藝效果好。但是必須注(zhu)意的(de)(de)(de):每一(yi)組(zu)(zu)(zu)(zu)碟(die)盤(pan)的(de)(de)(de)制造質量(liang)和是否水(shui)(shui)平安裝,將(jiang)影響混(hun)(hun)(hun)合(he)油(you)(you)(you)液(ye)(ye)膜的(de)(de)(de)形成(cheng)與(yu)氣液(ye)(ye)相接(jie)(jie)(jie)觸的(de)(de)(de)面積(ji);直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)含水(shui)(shui),會造成(cheng)毛油(you)(you)(you)中(zhong)磷脂的(de)(de)(de)析(xi)出;直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)壓(ya)力(li)(li)過(guo)高或(huo)者用(yong)(yong)量(liang)過(guo)大(da),會形成(cheng)液(ye)(ye)泛現(xian)象;混(hun)(hun)(hun)合(he)油(you)(you)(you)中(zhong)含雜太多,則使汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)碟(die)盤(pan)表(biao)面的(de)(de)(de)結垢現(xian)象嚴重,毛油(you)(you)(you)質量(liang)降低(di);若(ruo)采用(yong)(yong)多段(duan)(duan)式(shi),應(ying)使上(shang)層(ceng)(ceng)直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)壓(ya)力(li)(li)低(di)于下(xia)層(ceng)(ceng)。直接(jie)(jie)(jie)蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)好采用(yong)(yong)低(di)壓(ya)過(guo)熱蒸(zheng)(zheng)(zheng)(zheng)汽(qi)(qi)(qi)(qi)(qi)。層(ceng)(ceng)蝶(die)(die)(die)式(shi)汽(qi)(qi)(qi)(qi)(qi)提(ti)(ti)(ti)(ti)塔(ta)(ta)在(zai)檢修時碟(die)盤(pan)的(de)(de)(de)清理比較(jiao)(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脂(zhi)(zhi)(zhi)(zhi)(zhi)精(jing)煉(lian)脫(tuo)(tuo)(tuo)臭(chou)(chou)在(zai)任何情況(kuang)下,蒸(zheng)(zheng)餾引起的(de)(de)(de)(de)損(sun)(sun)耗(hao)均取(qu)決于脫(tuo)(tuo)(tuo)臭(chou)(chou)時(shi)間、通氣(qi)速率(lv)(lv)、操作(zuo)壓力和(he)溫度、油脂(zhi)(zhi)(zhi)(zhi)(zhi)中(zhong)(zhong)游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)和(he)不(bu)皂(zao)化物(wu)(wu)的(de)(de)(de)(de)含量以(yi)(yi)及(ji)甘油三脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)酯(zhi)的(de)(de)(de)(de)組分等因(yin)(yin)素(su)。在(zai)汽(qi)提(ti)(ti)脫(tuo)(tuo)(tuo)臭(chou)(chou)過(guo)程中(zhong)(zhong),有相當數量的(de)(de)(de)(de)油脂(zhi)(zhi)(zhi)(zhi)(zhi)是由于飛(fei)濺(jian)在(zai)汽(qi)提(ti)(ti)蒸(zheng)(zheng)汽(qi)中(zhong)(zhong)而損(sun)(sun)失的(de)(de)(de)(de)。因(yin)(yin)此,脫(tuo)(tuo)(tuo)臭(chou)(chou)總損(sun)(sun)耗(hao)包(bao)括蒸(zheng)(zheng)餾損(sun)(sun)耗(hao)和(he)飛(fei)濺(jian)損(sun)(sun)耗(hao)。不(bu)同(tong)的(de)(de)(de)(de)油脂(zhi)(zhi)(zhi)(zhi)(zhi)、設備(bei)以(yi)(yi)及(ji)不(bu)同(tong)的(de)(de)(de)(de)操作(zuo)條(tiao)(tiao)件,其(qi)脫(tuo)(tuo)(tuo)臭(chou)(chou)總損(sun)(sun)耗(hao)是不(bu)盡一(yi)(yi)致的(de)(de)(de)(de)。汽(qi)提(ti)(ti)脫(tuo)(tuo)(tuo)臭(chou)(chou)過(guo)程中(zhong)(zhong),低分子的(de)(de)(de)(de)醛類、酮類以(yi)(yi)及(ji)游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)容易蒸(zheng)(zheng)餾出(chu)來,隨著脫(tuo)(tuo)(tuo)臭(chou)(chou)過(guo)程的(de)(de)(de)(de)加深,油脂(zhi)(zhi)(zhi)(zhi)(zhi)內原有的(de)(de)(de)(de)游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)經過(guo)脫(tuo)(tuo)(tuo)臭(chou)(chou)后幾乎完全被(bei)除(chu)去,因(yin)(yin)此蒸(zheng)(zheng)餾損(sun)(sun)耗(hao)硬(ying)包(bao)括油脂(zhi)(zhi)(zhi)(zhi)(zhi)脫(tuo)(tuo)(tuo)臭(chou)(chou)前的(de)(de)(de)(de)游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)的(de)(de)(de)(de)含量。此外(wai),根據(ju)反應方程可知,汽(qi)提(ti)(ti)蒸(zheng)(zheng)汽(qi)不(bu)可避免地要引起部(bu)分油脂(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)水(shui)解(jie)(jie),因(yin)(yin)油脂(zhi)(zhi)(zhi)(zhi)(zhi)水(shui)解(jie)(jie)所(suo)生成(cheng)的(de)(de)(de)(de)這(zhe)部(bu)分脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan),也構(gou)(gou)成(cheng)了蒸(zheng)(zheng)餾損(sun)(sun)耗(hao)。根據(ju)經驗,當游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)含量降低至0.015%-0.03%時(shi),游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)的(de)(de)(de)(de)脫(tuo)(tuo)(tuo)除(chu)速率(lv)(lv)與(yu)裂解(jie)(jie)生成(cheng)的(de)(de)(de)(de)速率(lv)(lv)即達到平衡。蒸(zheng)(zheng)餾損(sun)(sun)耗(hao)還(huan)包(bao)括油脂(zhi)(zhi)(zhi)(zhi)(zhi)中(zhong)(zhong)存在(zai)的(de)(de)(de)(de)甾(zai)醇和(he)其(qi)他不(bu)皂(zao)化物(wu)(wu),盡管(guan)這(zhe)部(bu)分物(wu)(wu)質較(jiao)游(you)離(li)脂(zhi)(zhi)(zhi)(zhi)(zhi)肪(fang)(fang)(fang)酸(suan)(suan)難(nan)于揮發,但是在(zai)脫(tuo)(tuo)(tuo)臭(chou)(chou)餾出(chu)物(wu)(wu)卻占有一(yi)(yi)定的(de)(de)(de)(de)比例,它(ta)們構(gou)(gou)成(cheng)的(de)(de)(de)(de)蒸(zheng)(zheng)餾損(sun)(sun)耗(hao)取(qu)決于脫(tuo)(tuo)(tuo)臭(chou)(chou)操作(zuo)條(tiao)(tiao)件。以(yi)(yi)大豆油為(wei)例,在(zai)較(jiao)高的(de)(de)(de)(de)脫(tuo)(tuo)(tuo)臭(chou)(chou)溫度下,甾(zai)醇及(ji)不(bu)皂(zao)化物(wu)(wu)蒸(zheng)(zheng)餾脫(tuo)(tuo)(tuo)除(chu)率(lv)(lv)約為(wei)60%,而在(zai)一(yi)(yi)般操作(zuo)條(tiao)(tiao)件下脫(tuo)(tuo)(tuo)出(chu)率(lv)(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)(you)脂加(jia)(jia)工(gong)廠(chang)(chang)的(de)(de)安全(quan)衛(wei)生(sheng)要(yao)(yao)求(qiu)是油(you)(you)脂在“原料—加(jia)(jia)工(gong)—成品—包(bao)裝—儲運—市場(chang)“的(de)(de)全(quan)流程(cheng)中,物料自始至(zhi)終處于(yu)安全(quan)衛(wei)生(sheng)和(he)(he)不被污染的(de)(de)環(huan)境之中,油(you)(you)廠(chang)(chang)設(she)計(ji)是在油(you)(you)脂加(jia)(jia)工(gong)中對(dui)安全(quan)衛(wei)生(sheng)至(zhi)關重要(yao)(yao)的(de)(de)保障,所(suo)以設(she)計(ji)中必須要(yao)(yao)對(dui)環(huan)境、生(sheng)產設(she)施、加(jia)(jia)工(gong)工(gong)藝以及過(guo)(guo)程(cheng)、檢驗設(she)備(bei)、貯(zhu)運過(guo)(guo)程(cheng)等要(yao)(yao)求(qiu)條件按照油(you)(you)脂法令(ling)、規范執(zhi)行(xing)。1,廠(chang)(chang)區環(huan)境 油(you)(you)廠(chang)(chang)廠(chang)(chang)址(zhi)要(yao)(yao)選擇地(di)勢干燥、交(jiao)通方便(bian)、有充足(zu)水源的(de)(de)地(di)區,廠(chang)(chang)區周圍(wei)不得有污染源,要(yao)(yao)遠離有害場(chang)所(suo)。廠(chang)(chang)區環(huan)境要(yao)(yao)衛(wei)生(sheng)清潔(jie),物品堆(dui)放(fang)整(zheng)齊(qi),加(jia)(jia)工(gong)后廢棄物存放(fang)要(yao)(yao)遠離生(sheng)產車間(jian)(jian),且不得位于(yu)車間(jian)(jian)上風向。2,車間(jian)(jian)環(huan)境 車間(jian)(jian)應(ying)保持整(zheng)潔(jie),場(chang)地(di)應(ying)堅硬(ying)、平坦(tan),排水、通風良好。車間(jian)(jian)應(ying)有充足(zu)的(de)(de)空間(jian)(jian),便(bian)于(yu)設(she)備(bei)安裝、維護、物料儲存運輸、衛(wei)生(sheng)清理人員通行(xing)。如場(chang)地(di)要(yao)(yao)易(yi)于(yu)清洗消(xiao)毒、防霉、防腐,要(yao)(yao)具備(bei)消(xiao)毒、防蠅、防鼠、更衣、洗滌污水排放(fang)、存放(fang)廢棄物的(de)(de)設(she)施。車間(jian)(jian)環(huan)境溫度、濕度、通風條件應(ying)該滿足(zu)生(sheng)產工(gong)藝和(he)(he)規程(cheng)要(yao)(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(yue)13日,十三(san)屆全(quan)國(guo)人大一次(ci)會議(yi)召(zhao)開第四次(ci)全(quan)體會議(yi),聽取(qu)國(guo)務委員王勇關于國(guo)務院機構改革方案的(de)說明。該方案顯(xian)示,將(jiang)國(guo)家(jia)(jia)(jia)糧(liang)(liang)食局(ju)的(de)職(zhi)責,國(guo)家(jia)(jia)(jia)發展(zhan)和(he)改革委員會的(de)組(zu)織實(shi)施國(guo)家(jia)(jia)(jia)戰略物資(zi)收儲(chu)、輪換和(he)管(guan)理,管(guan)理國(guo)家(jia)(jia)(jia)糧(liang)(liang)食、棉花和(he)食糖(tang)儲(chu)備(bei)等職(zhi)責,以及民政部、商務部、國(guo)家(jia)(jia)(jia)能源(yuan)局(ju)等部門的(de)組(zu)織實(shi)施戰略和(he)應急儲(chu)備(bei)物資(zi)收儲(chu)、輪換和(he)日常(chang)管(guan)理職(zhi)責整合,組(zu)建(jian)國(guo)家(jia)(jia)(jia)糧(liang)(liang)食和(he)物資(zi)儲(chu)備(bei)局(ju),由國(guo)家(jia)(jia)(jia)發展(zhan)和(he)改革委員會管(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)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)在(zai)(zai)(zai)糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)中可(ke)(ke)以稱(cheng)得上是一(yi)(yi)(yi)個非(fei)常重要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)部件,它是帶動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)整個糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)運轉(zhuan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)關(guan)鍵。因此選擇好(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)對糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)來說是至關(guan)重要(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)。不(bu)(bu)只是因為(wei)其自(zi)身(shen)的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)常運轉(zhuan)有必要(yao)(yao)(yao)還因為(wei)糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)能否(fou)正(zheng)常工作(zuo)關(guan)系著(zhu)整個糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)常運轉(zhuan)和(he)工作(zuo)效率。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)作(zuo)為(wei)糧(liang)(liang)食輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝置(zhi)(zhi),在(zai)(zai)(zai)選用(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)時候(hou)盡量選用(yong)(yong)(yong)(yong)有短(duan)路(lu)(lu)裝置(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji),這樣做的(de)(de)(de)(de)(de)(de)(de)(de)(de)原因是因為(wei)有短(duan)路(lu)(lu)裝置(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)有一(yi)(yi)(yi)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)護(hu)(hu)裝置(zhi)(zhi),主(zhu)要(yao)(yao)(yao)體現在(zai)(zai)(zai)以下幾點。1、短(duan)路(lu)(lu)保(bao)護(hu)(hu)宜(yi)(yi)采(cai)(cai)用(yong)(yong)(yong)(yong)熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)或(huo)(huo)低(di)壓斷(duan)(duan)路(lu)(lu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)瞬(shun)(shun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)脫扣器(qi)(qi)(qi),也可(ke)(ke)采(cai)(cai)用(yong)(yong)(yong)(yong)瞬(shun)(shun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)件的(de)(de)(de)(de)(de)(de)(de)(de)(de)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)至少(shao)在(zai)(zai)(zai)兩相上裝設(she)。2、熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)熔(rong)(rong)斷(duan)(duan)體的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)應(ying)(ying)大(da)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),且(qie)其安秒特性曲線(xian)計算(suan)偏差后,略高于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)和(he)啟動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)時間的(de)(de)(de)(de)(de)(de)(de)(de)(de)交(jiao)點。如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)頻(pin)繁(fan),熔(rong)(rong)斷(duan)(duan)體的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)再加大(da)1~2級。瞬(shun)(shun)時電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)脫扣器(qi)(qi)(qi)或(huo)(huo)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)瞬(shun)(shun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)件的(de)(de)(de)(de)(de)(de)(de)(de)(de)整定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),應(ying)(ying)取電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)啟動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)2~2.5倍。3、熱繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)或(huo)(huo)過(guo)(guo)載脫扣器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)整定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),不(bu)(bu)小于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),其值(zhi)應(ying)(ying)接近額(e)定(ding)(ding)值(zhi)。控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)宜(yi)(yi)采(cai)(cai)用(yong)(yong)(yong)(yong)接觸(chu)器(qi)(qi)(qi)、啟動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)或(huo)(huo)專用(yong)(yong)(yong)(yong)開關(guan),一(yi)(yi)(yi)組電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)可(ke)(ke)共用(yong)(yong)(yong)(yong)一(yi)(yi)(yi)套控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi),控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)應(ying)(ying)能接通和(he)斷(duan)(duan)開電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)堵(du)轉(zhuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)。4、連(lian)續運行的(de)(de)(de)(de)(de)(de)(de)(de)(de)帶式輸(shu)(shu)送機(ji)(ji)(ji)(ji)(ji),采(cai)(cai)用(yong)(yong)(yong)(yong)熔(rong)(rong)斷(duan)(duan)器(qi)(qi)(qi)保(bao)護(hu)(hu)或(huo)(huo)短(duan)路(lu)(lu)器(qi)(qi)(qi)保(bao)護(hu)(hu),宜(yi)(yi)裝設(she)斷(duan)(duan)相熱繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)保(bao)護(hu)(hu)或(huo)(huo)溫(wen)度保(bao)護(hu)(hu)。低(di)壓保(bao)護(hu)(hu)器(qi)(qi)(qi)宜(yi)(yi)采(cai)(cai)用(yong)(yong)(yong)(yong)低(di)壓斷(duan)(duan)路(lu)(lu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)欠電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓脫扣器(qi)(qi)(qi)或(huo)(huo)接觸(chu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁線(xian)圈,其控(kong)(kong)制(zhi)回(hui)路(lu)(lu)宜(yi)(yi)采(cai)(cai)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)主(zhu)回(hui)路(lu)(lu)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)及其控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)宜(yi)(yi)共用(yong)(yong)(yong)(yong)一(yi)(yi)(yi)套隔離(li)器(qi)(qi)(qi)。5、低(di)壓交(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)回(hui)路(lu)(lu)上應(ying)(ying)在(zai)(zai)(zai)每臺電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)上裝隔離(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi),或(huo)(huo)共用(yong)(yong)(yong)(yong)一(yi)(yi)(yi)套短(duan)路(lu)(lu)保(bao)護(hu)(hu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)組電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)共用(yong)(yong)(yong)(yong)一(yi)(yi)(yi)套隔離(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)主(zhu)回(hui)路(lu)(lu)導線(xian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)載流(liu)(liu)(liu)(liu)量不(bu)(bu)應(ying)(ying)小于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu),并對其機(ji)(ji)(ji)(ji)(ji)械強度、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)在(zai)(zai)(zai)短(duan)路(lu)(lu)條件的(de)(de)(de)(de)(de)(de)(de)(de)(de)熱穩(wen)定(ding)(ding)性進行校驗。了解詳情 →2019-03-05