真(zhen)空(kong)速凝爐(lu)(lu)(lu)(lu)的(de)密封性(xing)與氣(qi)(qi)(qi)氛(fen)控(kong)制 　　真(zhen)空(kong)速凝爐(lu)(lu)(lu)(lu)種(zhong)類(lei)很多(duo)，可按爐(lu)(lu)(lu)(lu)體(ti)內(nei)的(de)氣(qi)(qi)(qi)氛(fen)分類(lei)（F—放熱(re)式，X—吸熱(re)式，YL—有(you)機液(ye)體(ti)裂解，D—氮基，A—氨制備，M—木(mu)炭(tan)，N—氨氣(qi)(qi)(qi)，Q表示氣(qi)(qi)(qi)氛(fen)）它(ta)的(de)特點是在某一(yi)(yi)既(ji)定(ding)溫度(du)下，向爐(lu)(lu)(lu)(lu)內(nei)同入一(yi)(yi)定(ding)成分的(de)人工制備氣(qi)(qi)(qi)氛(fen)，以達(da)到某種(zhong)熱(re)處(chu)理的(de)目(mu)的(de)，如(ru)(ru)氣(qi)(qi)(qi)體(ti)滲(shen)(shen)碳(tan)，碳(tan)氮共滲(shen)(shen)及光亮淬(cui)火(huo)，退(tui)火(huo)，正(zheng)火(huo)等(deng)。主要(yao)有(you)以下特點： 　　密封性(xing) 　　為了控(kong)制真(zhen)空(kong)速凝爐(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)內(nei)的(de)氣(qi)(qi)(qi)氛(fen)，維持爐(lu)(lu)(lu)(lu)內(nei)的(de)壓力，爐(lu)(lu)(lu)(lu)內(nei)工作空(kong)間始終要(yao)與外界空(kong)氣(qi)(qi)(qi)隔絕，盡(jin)量避免漏氣(qi)(qi)(qi)和(he)吸入空(kong)氣(qi)(qi)(qi)，故要(yao)求爐(lu)(lu)(lu)(lu)殼，砌體(ti)，爐(lu)(lu)(lu)(lu)門及所有(you)外界連接零件如(ru)(ru)風(feng)扇(shan)，熱(re)電偶，輻射(she)管，推(tui)拉(la)料機等(deng)采用密封裝置； 　　氣(qi)(qi)(qi)氛(fen)控(kong)制 　　為了維持真(zhen)空(kong)速凝爐(lu)(lu)(lu)(lu)爐(lu)(lu)(lu)(lu)內(nei)的(de)一(yi)(yi)定(ding)碳(tan)勢，除了控(kong)制氣(qi)(qi)(qi)氛(fen)成分的(de)穩(wen)定(ding)性(xing)外，還要(yao)對(dui)爐(lu)(lu)(lu)(lu)內(nei)氣(qi)(qi)(qi)氛(fen)進行自動控(kong)制。因此，需要(yao)設有(you)各(ge)種(zhong)控(kong)制儀(yi)表，以便(bian)對(dui)爐(lu)(lu)(lu)(lu)內(nei)氣(qi)(qi)(qi)氛(fen)連續或(huo)定(ding)期(qi)測定(ding)并調整爐(lu)(lu)(lu)(lu)內(nei)的(de)供氣(qi)(qi)(qi)量。

真(zhen)(zhen)空(kong)(kong)(kong)石(shi)(shi)(shi)墨(mo)(mo)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)如何解(jie)(jie)決傳統(tong)(tong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)工(gong)(gong)藝(yi)(yi)(yi)(yi)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損(sun)耗問題在(zai)(zai)(zai)(zai)高(gao)(gao)(gao)(gao)溫(wen)(wen)(wen)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)制(zhi)(zhi)(zhi)(zhi)備(bei)領域(yu)，傳統(tong)(tong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)工(gong)(gong)藝(yi)(yi)(yi)(yi)長(chang)期(qi)面(mian)臨材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損(sun)耗率(lv)(lv)(lv)高(gao)(gao)(gao)(gao)的(de)(de)(de)(de)(de)技(ji)(ji)術(shu)瓶頸。氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)反(fan)應(ying)(ying)、雜(za)(za)(za)質混(hun)入、熱(re)(re)應(ying)(ying)力(li)損(sun)傷(shang)等(deng)(deng)(deng)核心問題，導(dao)(dao)致原(yuan)料(liao)(liao)(liao)(liao)(liao)利(li)用(yong)率(lv)(lv)(lv)低、生(sheng)產(chan)(chan)(chan)成(cheng)(cheng)(cheng)(cheng)本居高(gao)(gao)(gao)(gao)不下(xia)。真(zhen)(zhen)空(kong)(kong)(kong)石(shi)(shi)(shi)墨(mo)(mo)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)通過(guo)構(gou)(gou)建特殊工(gong)(gong)藝(yi)(yi)(yi)(yi)環(huan)境(jing)(jing)(jing)，為(wei)解(jie)(jie)決這(zhe)些行業痛點提(ti)(ti)供了(le)系統(tong)(tong)性(xing)解(jie)(jie)決方案。傳統(tong)(tong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)工(gong)(gong)藝(yi)(yi)(yi)(yi)的(de)(de)(de)(de)(de)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損(sun)耗主要(yao)源于(yu)(yu)三(san)大機(ji)制(zhi)(zhi)(zhi)(zhi)：高(gao)(gao)(gao)(gao)溫(wen)(wen)(wen)氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)導(dao)(dao)致的(de)(de)(de)(de)(de)質量衰(shuai)減、空(kong)(kong)(kong)氣(qi)(qi)(qi)環(huan)境(jing)(jing)(jing)引發(fa)的(de)(de)(de)(de)(de)雜(za)(za)(za)質污染(ran)、以(yi)(yi)(yi)及(ji)溫(wen)(wen)(wen)度(du)(du)梯度(du)(du)造成(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)結(jie)(jie)(jie)構(gou)(gou)損(sun)傷(shang)。在(zai)(zai)(zai)(zai)常規(gui)開放式爐(lu)(lu)膛中(zhong)(zhong)(zhong)(zhong)，石(shi)(shi)(shi)墨(mo)(mo)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)暴露于(yu)(yu)氧(yang)(yang)氣(qi)(qi)(qi)環(huan)境(jing)(jing)(jing)，當溫(wen)(wen)(wen)度(du)(du)超過(guo)400℃時，表面(mian)碳(tan)原(yuan)子(zi)即與氧(yang)(yang)分子(zi)發(fa)生(sheng)劇烈(lie)反(fan)應(ying)(ying)，形(xing)成(cheng)(cheng)(cheng)(cheng)氣(qi)(qi)(qi)態(tai)CO或CO?逸出。這(zhe)種(zhong)(zhong)(zhong)氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)損(sun)耗在(zai)(zai)(zai)(zai)1000℃以(yi)(yi)(yi)上尤為(wei)顯(xian)著(zhu)(zhu)(zhu)，實(shi)(shi)(shi)驗數(shu)(shu)據顯(xian)示(shi)，常規(gui)工(gong)(gong)藝(yi)(yi)(yi)(yi)下(xia)石(shi)(shi)(shi)墨(mo)(mo)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)的(de)(de)(de)(de)(de)單次燒(shao)(shao)(shao)(shao)(shao)損(sun)率(lv)(lv)(lv)可(ke)(ke)(ke)達3%-8%，直(zhi)接推(tui)高(gao)(gao)(gao)(gao)原(yuan)料(liao)(liao)(liao)(liao)(liao)消(xiao)耗成(cheng)(cheng)(cheng)(cheng)本。真(zhen)(zhen)空(kong)(kong)(kong)環(huan)境(jing)(jing)(jing)通過(guo)改變熱(re)(re)力(li)學(xue)條件實(shi)(shi)(shi)現氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)抑制(zhi)(zhi)(zhi)(zhi)。當爐(lu)(lu)內壓(ya)強降至10??Pa量級(ji)時，氧(yang)(yang)分壓(ya)顯(xian)著(zhu)(zhu)(zhu)降低，碳(tan)原(yuan)子(zi)氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)反(fan)應(ying)(ying)的(de)(de)(de)(de)(de)化(hua)(hua)(hua)(hua)(hua)學(xue)平衡被打破。此時即使溫(wen)(wen)(wen)度(du)(du)升至1800℃，石(shi)(shi)(shi)墨(mo)(mo)基(ji)體(ti)的(de)(de)(de)(de)(de)氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)速率(lv)(lv)(lv)也僅為(wei)常壓(ya)狀態(tai)的(de)(de)(de)(de)(de)1/50以(yi)(yi)(yi)下(xia)。這(zhe)種(zhong)(zhong)(zhong)環(huan)境(jing)(jing)(jing)特性(xing)使得真(zhen)(zhen)空(kong)(kong)(kong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)在(zai)(zai)(zai)(zai)高(gao)(gao)(gao)(gao)溫(wen)(wen)(wen)處理階(jie)段可(ke)(ke)(ke)減少(shao)(shao)60%-75%的(de)(de)(de)(de)(de)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)質量損(sun)失，特別(bie)適用(yong)于(yu)(yu)高(gao)(gao)(gao)(gao)純石(shi)(shi)(shi)墨(mo)(mo)、等(deng)(deng)(deng)靜壓(ya)石(shi)(shi)(shi)墨(mo)(mo)等(deng)(deng)(deng)貴重原(yuan)料(liao)(liao)(liao)(liao)(liao)的(de)(de)(de)(de)(de)加工(gong)(gong)場(chang)景。雜(za)(za)(za)質控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)是真(zhen)(zhen)空(kong)(kong)(kong)工(gong)(gong)藝(yi)(yi)(yi)(yi)的(de)(de)(de)(de)(de)另一技(ji)(ji)術(shu)優(you)(you)勢。傳統(tong)(tong)工(gong)(gong)藝(yi)(yi)(yi)(yi)中(zhong)(zhong)(zhong)(zhong)，空(kong)(kong)(kong)氣(qi)(qi)(qi)中(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)氮、氧(yang)(yang)、水(shui)分及(ji)懸浮顆粒(li)物會在(zai)(zai)(zai)(zai)煅(duan)燒(shao)(shao)(shao)(shao)(shao)過(guo)程中(zhong)(zhong)(zhong)(zhong)滲(shen)入材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)微(wei)觀(guan)(guan)結(jie)(jie)(jie)構(gou)(gou)。實(shi)(shi)(shi)驗表明(ming)，常規(gui)工(gong)(gong)藝(yi)(yi)(yi)(yi)制(zhi)(zhi)(zhi)(zhi)備(bei)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)墨(mo)(mo)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)雜(za)(za)(za)質含量普遍在(zai)(zai)(zai)(zai)200-500ppm范圍，而真(zhen)(zhen)空(kong)(kong)(kong)環(huan)境(jing)(jing)(jing)可(ke)(ke)(ke)將總雜(za)(za)(za)質含量控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)在(zai)(zai)(zai)(zai)50ppm以(yi)(yi)(yi)下(xia)。這(zhe)種(zhong)(zhong)(zhong)純度(du)(du)提(ti)(ti)升對(dui)于(yu)(yu)半導(dao)(dao)體(ti)用(yong)石(shi)(shi)(shi)墨(mo)(mo)部件、核能(neng)(neng)級(ji)碳(tan)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)等(deng)(deng)(deng)高(gao)(gao)(gao)(gao)端(duan)應(ying)(ying)用(yong)具有決定性(xing)意義，能(neng)(neng)有效(xiao)減少(shao)(shao)因雜(za)(za)(za)質引發(fa)的(de)(de)(de)(de)(de)性(xing)能(neng)(neng)波動(dong)(dong)和(he)早(zao)期(qi)失效(xiao)。溫(wen)(wen)(wen)度(du)(du)場(chang)均勻性(xing)優(you)(you)化(hua)(hua)(hua)(hua)(hua)進一步降低了(le)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損(sun)耗。真(zhen)(zhen)空(kong)(kong)(kong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)采(cai)(cai)用(yong)三(san)維(wei)輻(fu)射加熱(re)(re)結(jie)(jie)(jie)構(gou)(gou)，配合(he)(he)(he)智能(neng)(neng)溫(wen)(wen)(wen)控(kong)(kong)系統(tong)(tong)，可(ke)(ke)(ke)將爐(lu)(lu)膛溫(wen)(wen)(wen)差控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)在(zai)(zai)(zai)(zai)±5℃以(yi)(yi)(yi)內。相較傳統(tong)(tong)電阻(zu)爐(lu)(lu)動(dong)(dong)輒±30℃的(de)(de)(de)(de)(de)溫(wen)(wen)(wen)度(du)(du)波動(dong)(dong)，這(zhe)種(zhong)(zhong)(zhong)精準(zhun)控(kong)(kong)溫(wen)(wen)(wen)能(neng)(neng)力(li)顯(xian)著(zhu)(zhu)(zhu)減少(shao)(shao)了(le)熱(re)(re)應(ying)(ying)力(li)集中(zhong)(zhong)(zhong)(zhong)現象。某電池負極材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)生(sheng)產(chan)(chan)(chan)企業的(de)(de)(de)(de)(de)對(dui)比數(shu)(shu)據顯(xian)示(shi)，真(zhen)(zhen)空(kong)(kong)(kong)工(gong)(gong)藝(yi)(yi)(yi)(yi)使石(shi)(shi)(shi)墨(mo)(mo)顆粒(li)的(de)(de)(de)(de)(de)破碎(sui)率(lv)(lv)(lv)從(cong)12%降至3.2%，產(chan)(chan)(chan)品(pin)(pin)得率(lv)(lv)(lv)提(ti)(ti)升23個(ge)百分點。在(zai)(zai)(zai)(zai)節能(neng)(neng)降耗方面(mian)，真(zhen)(zhen)空(kong)(kong)(kong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)展現出復(fu)合(he)(he)(he)優(you)(you)勢。其密閉(bi)腔體(ti)設計減少(shao)(shao)熱(re)(re)量散失，配合(he)(he)(he)效(xiao)率(lv)(lv)(lv)高(gao)(gao)(gao)(gao)的(de)(de)(de)(de)(de)石(shi)(shi)(shi)墨(mo)(mo)氈(zhan)保(bao)溫(wen)(wen)(wen)層，單位產(chan)(chan)(chan)能(neng)(neng)能(neng)(neng)耗較傳統(tong)(tong)工(gong)(gong)藝(yi)(yi)(yi)(yi)降低40%左右。同時，由(you)于(yu)(yu)氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)損(sun)耗大幅(fu)減少(shao)(shao)，原(yuan)料(liao)(liao)(liao)(liao)(liao)單耗相應(ying)(ying)下(xia)降，綜合(he)(he)(he)生(sheng)產(chan)(chan)(chan)成(cheng)(cheng)(cheng)(cheng)本可(ke)(ke)(ke)優(you)(you)化(hua)(hua)(hua)(hua)(hua)15%-20%。這(zhe)種(zhong)(zhong)(zhong)雙重降本效(xiao)應(ying)(ying)在(zai)(zai)(zai)(zai)貴金屬催化(hua)(hua)(hua)(hua)(hua)劑(ji)載(zai)體(ti)、高(gao)(gao)(gao)(gao)精度(du)(du)石(shi)(shi)(shi)墨(mo)(mo)模具等(deng)(deng)(deng)高(gao)(gao)(gao)(gao)附加值產(chan)(chan)(chan)品(pin)(pin)生(sheng)產(chan)(chan)(chan)中(zhong)(zhong)(zhong)(zhong)表現尤為(wei)突出。從(cong)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)科學(xue)視角(jiao)看(kan)，真(zhen)(zhen)空(kong)(kong)(kong)環(huan)境(jing)(jing)(jing)還帶來(lai)微(wei)觀(guan)(guan)結(jie)(jie)(jie)構(gou)(gou)優(you)(you)化(hua)(hua)(hua)(hua)(hua)效(xiao)應(ying)(ying)。在(zai)(zai)(zai)(zai)無氧(yang)(yang)化(hua)(hua)(hua)(hua)(hua)氣(qi)(qi)(qi)氛下(xia)，石(shi)(shi)(shi)墨(mo)(mo)晶粒(li)生(sheng)長(chang)更(geng)趨完整，層間排列規(gui)則度(du)(du)提(ti)(ti)升，這(zhe)種(zhong)(zhong)(zhong)結(jie)(jie)(jie)構(gou)(gou)特性(xing)使得制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)的(de)(de)(de)(de)(de)抗折(zhe)強度(du)(du)提(ti)(ti)高(gao)(gao)(gao)(gao)25%-35%，熱(re)(re)導(dao)(dao)率(lv)(lv)(lv)優(you)(you)化(hua)(hua)(hua)(hua)(hua)10%-18%。某光伏熱(re)(re)場(chang)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)制(zhi)(zhi)(zhi)(zhi)造商(shang)的(de)(de)(de)(de)(de)實(shi)(shi)(shi)踐表明(ming)，采(cai)(cai)用(yong)真(zhen)(zhen)空(kong)(kong)(kong)工(gong)(gong)藝(yi)(yi)(yi)(yi)后，石(shi)(shi)(shi)墨(mo)(mo)氈(zhan)的(de)(de)(de)(de)(de)使用(yong)壽命延長(chang)至原(yuan)來(lai)的(de)(de)(de)(de)(de)2.3倍，替換頻次顯(xian)著(zhu)(zhu)(zhu)降低。當前，真(zhen)(zhen)空(kong)(kong)(kong)石(shi)(shi)(shi)墨(mo)(mo)煅(duan)燒(shao)(shao)(shao)(shao)(shao)技(ji)(ji)術(shu)已在(zai)(zai)(zai)(zai)半導(dao)(dao)體(ti)制(zhi)(zhi)(zhi)(zhi)造、新能(neng)(neng)源電池、航空(kong)(kong)(kong)航天(tian)等(deng)(deng)(deng)戰(zhan)略領域(yu)形(xing)成(cheng)(cheng)(cheng)(cheng)規(gui)模化(hua)(hua)(hua)(hua)(hua)應(ying)(ying)用(yong)。隨著(zhu)(zhu)(zhu)碳(tan)基(ji)復(fu)合(he)(he)(he)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)、核石(shi)(shi)(shi)墨(mo)(mo)等(deng)(deng)(deng)高(gao)(gao)(gao)(gao)端(duan)制(zhi)(zhi)(zhi)(zhi)品(pin)(pin)需求(qiu)的(de)(de)(de)(de)(de)持(chi)續增長(chang)，這(zhe)項技(ji)(ji)術(shu)為(wei)破解(jie)(jie)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)損(sun)耗難題提(ti)(ti)供了(le)可(ke)(ke)(ke)靠路徑。通過(guo)工(gong)(gong)藝(yi)(yi)(yi)(yi)環(huan)境(jing)(jing)(jing)的(de)(de)(de)(de)(de)根本性(xing)變革，真(zhen)(zhen)空(kong)(kong)(kong)煅(duan)燒(shao)(shao)(shao)(shao)(shao)爐(lu)(lu)不僅實(shi)(shi)(shi)現生(sheng)產(chan)(chan)(chan)效(xiao)率(lv)(lv)(lv)的(de)(de)(de)(de)(de)躍升，更(geng)推(tui)動(dong)(dong)著(zhu)(zhu)(zhu)高(gao)(gao)(gao)(gao)溫(wen)(wen)(wen)材(cai)(cai)(cai)料(liao)(liao)(liao)(liao)(liao)制(zhi)(zhi)(zhi)(zhi)備(bei)行業向綠色化(hua)(hua)(hua)(hua)(hua)、精細(xi)化(hua)(hua)(hua)(hua)(hua)方向深度(du)(du)轉型。