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(1)接(jie)(jie)地(di)靜電(dian)(dian)危害防(fang)治方(fang)法,接(jie)(jie)地(di)是(shi)有(you)用、經濟的(de)(de)方(fang)法。過程中(zhong)由于靜電(dian)(dian)的(de)(de)沖突、感應或(huo)傳導(dao),如果(guo)金(jin)屬設備、導(dao)電(dian)(dian)產(chan)品或(huo)人(ren)員身體的(de)(de)接(jie)(jie)地(di)絕(jue)緣中(zhong)積聚(ju)電(dian)(dian)荷(he),積聚(ju)的(de)(de)電(dian)(dian)荷(he)會在一次放(fang)電(dian)(dian)中(zhong)釋放(fang)能量。這種靜電(dian)(dian)放(fang)電(dian)(dian)是(shi)靜電(dian)(dian)損壞的(de)(de)主要(yao)原因(yin)。其預防(fang)方(fang)法是(shi)將(jiang)所有(you)導(dao)電(dian)(dian)目(mu)標接(jie)(jie)地(di),并堅持低接(jie)(jie)地(di)電(dian)(dian)阻,將(jiang)儲存(cun)在金(jin)屬設備、導(dao)電(dian)(dian)產(chan)品或(huo)人(ren)員身體中(zhong)的(de)(de)電(dian)(dian)荷(he)靈活地(di)接(jie)(jie)地(di),以防(fang)止靜電(dian)(dian)損壞的(de)(de)發生。


根據相關研究,一般工作場(chang)所存(cun)在易燃(ran)(ran)蒸氣(qi)、絕緣金屬(shu)設備(bei)/部(bu)件(jian)、導電(dian)產品(pin)或人(ren)員身體(ti)電(dian)位需要達到100V以(yi)(yi)上,方可(ke)能引燃(ran)(ran)放電(dian)周圍的易燃(ran)(ran)物質。因此,工廠內的絕緣金屬(shu)設備(bei)/部(bu)件(jian)和導電(dian)產品(pin)均接地。接地電(dian)阻小于106Ω,足以(yi)(yi)將(jiang)積累的電(dian)荷迅速(su)消散到大地,將(jiang)它(ta)們的靜電(dian)電(dian)位降低到100V以(yi)(yi)下(xia),從而防止靜電(dian)損(sun)壞。


(2)增加(jia)(jia)濕(shi)度 增加(jia)(jia)工作環境空(kong)氣(qi)的(de)相對(dui)(dui)濕(shi)度,也是傳統(tong)工業制造(zao)過程(cheng)中(zhong)(zhong)常見的(de)靜電(dian)(dian)破壞(huai)預防方法(fa)。在高濕(shi)度(R.H. > 65 %)下,如(ru)果(guo)材(cai)(cai)料具(ju)有親(qin)水(shui)(shui)性表面,它(ta)只是簡單地(di)吸收(shou)空(kong)氣(qi)中(zhong)(zhong)的(de)水(shui)(shui)分(fen),從(cong)而降(jiang)(jiang)低材(cai)(cai)料的(de)外電(dian)(dian)阻值,提(ti)高電(dian)(dian)荷(he)(he)耗散率,較(jiao)大(da)限度地(di)減(jian)少電(dian)(dian)荷(he)(he)積累程(cheng)度。這些(xie)(xie)包(bao)括(kuo)棉花、紙和醋酸纖維素。在工廠過程(cheng)中(zhong)(zhong),一般采用加(jia)(jia)濕(shi)器、地(di)面澆水(shui)(shui)或水(shui)(shui)蒸氣(qi)噴射等(deng)(deng)方式來增加(jia)(jia)作業環境中(zhong)(zhong)空(kong)氣(qi)的(de)相對(dui)(dui)濕(shi)度。如(ru)果(guo)材(cai)(cai)料表面不(bu)是親(qin)水(shui)(shui)性的(de),就不(bu)容易(yi)從(cong)空(kong)氣(qi)中(zhong)(zhong)吸水(shui)(shui),所以不(bu)能降(jiang)(jiang)低材(cai)(cai)料的(de)外電(dian)(dian)阻值,也就不(bu)能提(ti)高電(dian)(dian)荷(he)(he)耗散率。這類物質包(bao)括(kuo)一些(xie)(xie)人造(zao)聚合(he)物如(ru)ABS(丙烯(xi)(xi)腈(jing)-丁(ding)二烯(xi)(xi)-苯(ben)乙(yi)烯(xi)(xi)、丙烯(xi)(xi)腈(jing)-丁(ding)二烯(xi)(xi)-苯(ben)乙(yi)烯(xi)(xi))、特氟隆(Teflon, fluorocarbon polymer)等(deng)(deng)。這種高拒水(shui)(shui)性材(cai)(cai)料需要(yao)相對(dui)(dui)濕(shi)度提(ti)高到80%,甚至(zhi)90%以上,為有效降(jiang)(jiang)低材(cai)(cai)料的(de)外電(dian)(dian)阻值,將電(dian)(dian)荷(he)(he)積累降(jiang)(jiang)至(zhi)較(jiao)低。

(3) 材(cai)(cai)(cai)(cai)料(liao)在抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)數據(ju)過(guo)程(cheng)中(zhong)積(ji)累(lei)的(de)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)會通過(guo)傳導(dao)路(lu)(lu)徑向大(da)地(di)擴散。如(ru)果傳導(dao)路(lu)(lu)徑是絕(jue)(jue)緣(yuan)材(cai)(cai)(cai)(cai)料(liao)(低電(dian)(dian)導(dao)率(lv)(lv)),則(ze)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)耗(hao)散率(lv)(lv)低,如(ru)果傳導(dao)路(lu)(lu)徑是導(dao)電(dian)(dian)材(cai)(cai)(cai)(cai)料(liao)(高電(dian)(dian)導(dao)率(lv)(lv)),則(ze)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)耗(hao)散率(lv)(lv)高。如(ru)果物(wu)質的(de)表(biao)面(mian)電(dian)(dian)阻(zu)率(lv)(lv)小于(yu)(yu)(yu) 1011 ω /m2 或(huo)體(ti)積(ji)電(dian)(dian)阻(zu)率(lv)(lv)小于(yu)(yu)(yu) 1010 ω /m2,則(ze)可以(yi)(yi)防止(zhi)過(guo)大(da)的(de)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)。這(zhe)些(xie)物(wu)質被稱為抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)材(cai)(cai)(cai)(cai)料(liao)。但在含有易燃(ran)物(wu)質的(de)工作場所,抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)數據(ju)的(de)表(biao)面(mian)電(dian)(dian)阻(zu)率(lv)(lv)應小于(yu)(yu)(yu)108 ω /m2或(huo)體(ti)積(ji)電(dian)(dian)阻(zu)率(lv)(lv)應小于(yu)(yu)(yu)106 ω /m2。工業過(guo)程(cheng)中(zhong)使用(yong)的(de)信息可以(yi)(yi)通過(guo)以(yi)(yi)下方式進行抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian):材(cai)(cai)(cai)(cai)料(liao)本身具有抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)性能(如(ru)棉花(hua)、木材(cai)(cai)(cai)(cai)、紙張和土壤等(deng)(deng)),抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)材(cai)(cai)(cai)(cai)料(liao)(如(ru)碳粉(fen)、抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)劑(ji)等(deng)(deng))被涂(tu)敷在絕(jue)(jue)緣(yuan)材(cai)(cai)(cai)(cai)料(liao)的(de)表(biao)面(mian),在絕(jue)(jue)緣(yuan)材(cai)(cai)(cai)(cai)料(liao)的(de)生產過(guo)程(cheng)中(zhong)涉(she)及導(dao)電(dian)(dian)或(huo)抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)材(cai)(cai)(cai)(cai)料(liao)(如(ru)碳粉(fen)、金屬、抗(kang)靜(jing)(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)劑(ji)、導(dao)電(dian)(dian)纖維等(deng)(deng))皮帶流水(shui)線(xian)報價。


(4)靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)利(li)用(yong)(yong)高(gao)壓(ya)攻擊空氣中(zhong)(zhong)的(de)(de)帶(dai)(dai)電(dian)(dian)離(li)子。因為相反的(de)(de)電(dian)(dian)荷(he)會(hui)相互(hu)吸引而中(zhong)(zhong)和,離(li)子可以中(zhong)(zhong)和靜(jing)(jing)電(dian)(dian)物體(ti)的(de)(de)電(dian)(dian)荷(he),使(shi)電(dian)(dian)荷(he)積累(lei)程(cheng)度(du)降到較低(di),從而不會(hui)發(fa)生(sheng)靜(jing)(jing)電(dian)(dian)放電(dian)(dian)。靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)大致(zhi)可分為無(wu)源型、自動型和輻射(she)源型三種。在選(xuan)擇靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)時,需要考慮使(shi)用(yong)(yong)環境(jing)因素,以較大限度(du)地發(fa)揮靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)的(de)(de)作用(yong)(yong)。一般來說,靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)的(de)(de)位(wei)置應靠(kao)近帶(dai)(dai)靜(jing)(jing)電(dian)(dian)的(de)(de)物體(ti),遠離(li)接地金屬目標,以較大限度(du)地發(fa)揮靜(jing)(jing)電(dian)(dian)消(xiao)除(chu)器(qi)(qi)的(de)(de)作用(yong)(yong)。此外,還要注(zhu)意電(dian)(dian)離(li)引起的(de)(de)臭(chou)氧工業(ye)衛(wei)生(sheng)問題,以及高(gao)壓(ya)電(dian)(dian)源和帶(dai)(dai)電(dian)(dian)體(ti)短路放電(dian)(dian)引起的(de)(de)工業(ye)安全問題。


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