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的故(gu)障排除:發泡設備運行中(zhong)電(dian)(dian)(dian)箱(xiang)內空氣開(kai)關或(huo)熱繼(ji)電(dian)(dian)(dian)器跳閘。電(dian)(dian)(dian)機或(huo)電(dian)(dian)(dian)箱(xiang)內的接頭(tou)松動→檢(jian)查并(bing)上(shang)緊(jin)電(dian)(dian)(dian)線接頭(tou)。漿(jiang)液太(tai)稠,的攪拌機負(fu)載(zai)→稀(xi)釋漿(jiang)液并(bing)復位熱繼(ji)電(dian)(dian)(dian)器上(shang)“紅色”按鈕。電(dian)(dian)(dian)壓(ya)過低→檢(jian)查原(yuan)因,提高電(dian)(dian)(dian)壓(ya)到規定值(zhi)。高壓(ya)發泡機正常(chang)工作時,氣包上(shang)面減壓(ya)閥(fa)突然(ran)大量排氣。減壓(ya)閥(fa)壞(huai)掉→檢(jian)查并(bing)更(geng)換減壓(ya)閥(fa)。攪拌桶(tong)內漿(jiang)液太(tai)稠,導致氣壓(ya)高出減壓(ya)閥(fa)承受能力(li)→停(ting)機稀(xi)釋漿(jiang)液。
聚氨酯(zhi)行業(ye)發展概述:我國(guo)聚氨酯(zhi)發泡機(ji)工(gong)(gong)業(ye)以(yi)生(sheng)產(chan)原料為(wei)起(qi)步(bu):上世紀50年(nian)(nian)代(dai)末首(shou)先(xian)在(zai)大連(lian)建(jian)立了小規模生(sheng)產(chan)三(san)苯(ben)基(ji)甲(jia)烷(wan)、三(san)異氰酸酯(zhi)的基(ji)地,該原料主要用(yong)作生(sheng)產(chan)膠粘劑;60年(nian)(nian)代(dai)分別又在(zai)大連(lian)、常(chang)州(zhou)、太(tai)原各建(jian)立了500噸/年(nian)(nian)產(chan)能的MDI和(he)TDI原料生(sheng)產(chan)企業(ye)。引進國(guo)外先(xian)進的異氰酸酯(zhi)的技術和(he)裝置:1984年(nian)(nian)到1994年(nian)(nian)10年(nian)(nian)間,在(zai)天津石化(hua)(hua)三(san)廠(chang)、錦西化(hua)(hua)工(gong)(gong)總(zong)廠(chang)、九(jiu)江化(hua)(hua)工(gong)(gong)廠(chang)、山東(dong)東(dong)大化(hua)(hua)工(gong)(gong)從日本引進聚醚(mi)多元醇生(sheng)產(chan)裝置和(he)制品生(sheng)產(chan)技術的同時,國(guo)家也通(tong)過“七五”、“八五”等科技攻關項(xiang)目(mu)的扶植,逐步(bu)開發了高壓反(fan)應注射(she)成型機(ji)(RIM)、高回彈冷熟化(hua)(hua)泡沫(mo)生(sheng)產(chan)技術。
環戊烷發泡機產量:產量就是產泡量,這個量必須略高于自己需泡量20%,以留有余地,其產泡量應以下限為核定計算依據,而不能以上限;專業環戊烷發泡機裝機容(rong)(rong)量(liang):裝機容(rong)(rong)量(liang)就是裝機總(zong)功率,此(ci)參數對(dui)核算電(dian)(dian)器電(dian)(dian)路對(dui)總(zong)用電(dian)(dian)量(liang)的(de)適應(ying)性(xing)有重要意義;設備尺寸(cun):此(ci)參數是車間整體(ti)布(bu)局規劃的(de)必(bi)要因素;泡(pao)徑范圍(wei):一般(ban)應(ying)根據具(ju)體(ti)產品(pin)對(dui)泡(pao)徑的(de)要求(qiu)來對(dui)照。
每(mei)天(tian)必(bi)須對機頭(tou)做一次保養:1.拆(chai)除(chu)(chu)(chu)兩側氣缸清(qing)(qing)(qing)理(li)干凈(jing)、上(shang)油(you)。2.清(qing)(qing)(qing)洗攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)轉(zhuan)(zhuan)子(zi)(zi)。3.清(qing)(qing)(qing)除(chu)(chu)(chu)轉(zhuan)(zhuan)子(zi)(zi)與銅螺絲上(shang)的(de)凝固物。4.連軸(zhou)器噴除(chu)(chu)(chu)銹劑(ji)(ji)。5.機頭(tou)上(shang)加黃油(you)。每(mei)次使(shi)(shi)用(yong)后超1小時(shi)不(bu)用(yong)的(de),需拆(chai)除(chu)(chu)(chu)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)外套,清(qing)(qing)(qing)潔(jie)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)轉(zhuan)(zhuan)子(zi)(zi)上(shang)方軸(zhou)銅螺絲上(shang)殘留的(de)發泡凝固物,并(bing)噴除(chu)(chu)(chu)銹劑(ji)(ji)。發泡機超過2天(tian)不(bu)使(shi)(shi)用(yong)的(de),需拆(chai)除(chu)(chu)(chu)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)頭(tou)并(bing)拆(chai)除(chu)(chu)(chu)內(nei)六角清(qing)(qing)(qing)理(li)內(nei)部殘渣,后噴除(chu)(chu)(chu)銹劑(ji)(ji)。攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)轉(zhuan)(zhuan)子(zi)(zi)用(yong)鋼絲刷清(qing)(qing)(qing)理(li)干凈(jing),機頭(tou)兩側全缸拆(chai)除(chu)(chu)(chu)清(qing)(qing)(qing)理(li)內(nei)部污物,并(bing)噴除(chu)(chu)(chu)銹劑(ji)(ji)。檢查所使(shi)(shi)用(yong)設備是否正常,拆(chai)除(chu)(chu)(chu)攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)轉(zhuan)(zhuan)子(zi)(zi),檢查攪(jiao)(jiao)拌(ban)(ban)(ban)(ban)電機是否工作;旋(xuan)轉(zhuan)(zhuan)是否遲緩,有(you)無(wu)噪聲、發熱、反轉(zhuan)(zhuan)等現(xian)象,檢查各(ge)管路是否暢通,有(you)無(wu)凝固物堵(du)塞,必(bi)要時(shi)用(yong)清(qing)(qing)(qing)洗劑(ji)(ji)清(qing)(qing)(qing)洗并(bing)吹干。
工作原(yuan)理(li):不(bu)論何種(zhong)環戊(wu)烷發(fa)(fa)泡(pao)(pao)(pao)(pao)機(ji),能(neng)(neng)夠發(fa)(fa)泡(pao)(pao)(pao)(pao)的(de)(de)基本原(yuan)理(li),就(jiu)是將(jiang)空氣(qi)(qi)引入(ru)(ru)發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye)中。各種(zhong)機(ji)型的(de)(de)變化在(zai)于(yu)引入(ru)(ru)氣(qi)(qi)體(ti)(ti)(ti)的(de)(de)方(fang)式不(bu)同(tong),因而(er)效(xiao)果(guo)也不(bu)同(tong)。泡(pao)(pao)(pao)(pao)沫(mo)的(de)(de)形(xing)(xing)成(cheng)有兩個(ge)(ge)必須(xu)的(de)(de)因素(su),一是發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye),二(er)(er)是空氣(qi)(qi),二(er)(er)者缺一不(bu)可(ke)。沒有發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye),包圍氣(qi)(qi)體(ti)(ti)(ti)的(de)(de)液(ye)(ye)膜(mo)就(jiu)不(bu)會形(xing)(xing)成(cheng),也就(jiu)沒有氣(qi)(qi)泡(pao)(pao)(pao)(pao)。而(er)沒有氣(qi)(qi)體(ti)(ti)(ti),單有發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye),泡(pao)(pao)(pao)(pao)也不(bu)能(neng)(neng)形(xing)(xing)成(cheng)。在(zai)氣(qi)(qi)泡(pao)(pao)(pao)(pao)的(de)(de)形(xing)(xing)成(cheng)體(ti)(ti)(ti)系中,發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye)是分散介質,氣(qi)(qi)體(ti)(ti)(ti)是分散相(xiang),氣(qi)(qi)體(ti)(ti)(ti)分散于(yu)液(ye)(ye)體(ti)(ti)(ti)中,才能(neng)(neng)形(xing)(xing)成(cheng)氣(qi)(qi)泡(pao)(pao)(pao)(pao),再由無數(shu)氣(qi)(qi)泡(pao)(pao)(pao)(pao)組成(cheng)泡(pao)(pao)(pao)(pao)沫(mo)。除了發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)性能(neng)(neng)這個(ge)(ge)重(zhong)要因素(su)外,氣(qi)(qi)體(ti)(ti)(ti)引入(ru)(ru)發(fa)(fa)泡(pao)(pao)(pao)(pao)劑(ji)溶(rong)液(ye)(ye)是另外一個(ge)(ge)重(zhong)要的(de)(de)因素(su)。而(er)氣(qi)(qi)體(ti)(ti)(ti)引入(ru)(ru)液(ye)(ye)體(ti)(ti)(ti),必須(xu)靠(kao)發(fa)(fa)泡(pao)(pao)(pao)(pao)機(ji)來完成(cheng),即(ji)發(fa)(fa)泡(pao)(pao)(pao)(pao)機(ji)采用一定(ding)的(de)(de)方(fang)法將(jiang)氣(qi)(qi)體(ti)(ti)(ti)引入(ru)(ru)液(ye)(ye)體(ti)(ti)(ti)中。
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