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2023/01/18

你我都不該是人體空氣清淨機!油霧過濾讓金屬加工廠排煙更乾淨

在金屬加工業裡,常見的工法有車、銑、鑽、磨等方式。加工廠常會在切削製作時,加以切削液,增加潤滑、減少摩擦,切削液可以有效降低切削時所產生的溫度、並減少磨損,還可以吸附切削所產生的餘屑。

 

CNC車床加工過程中,機台的車削刀具與工件會快速磨擦,並使用車削油高速沖洗工件,使得製程會產生明顯可見的車削油油霧白煙。這些油煙如不在當下立刻蒐集並進行處理,會導致整個廠區的地板、牆面都佈滿了厚重的油汙,這些重油除了使人行走容易滑倒、清潔不易外,也同時會有釀成火災或爆炸意外的高度風險。

 

此外,油霧白煙內含有磨削時產生的金屬粉塵、霧狀有機物與各種微粒,若不加以處理便逕行排放,不只會造成空氣汙染,還可能會使作人員與附近的居民,引發肺部、皮膚、胰腺、甚至遺傳性的癌症病變。

 

佳楠使用靜電式油霧回收機,排放前經過四道過濾程序,每道濾心皆可清洗後重複使用

佳楠使用靜電式油霧回收機,排放前經過四道過濾程序,每道濾心皆可清洗後重複使用

 

為了維護我們工作同仁與廠區周圍居民的健康,2020年我們安裝了「靜電式油霧回收機」。採用四道過濾設計,第一道「粗效過濾器」與第二道「油霧分離段」可初步清除大部分的金屬微粒以及油性液滴,第三道「高壓電離段」與第四道「低壓集塵區」則使用高壓電,將更細小的油霧電離成帶正電與帶負電的離子,再利用電磁交互作用,將油霧吸附在集塵板上,形成油滴後流向集油槽,即可將這些液化後的車削油重複使用。

 

較大的金屬微粒會在第一道與第二道過濾器被攔截

較大的金屬微粒會在第一道與第二道過濾器被攔截

 

靜電式油霧回收機可攔截至少95%0.3μm微粒,且能夠處理到最小0.1μm的微粒。所有過濾濾心都能反覆清洗使用,定期清潔即可保障油霧回收機的過濾效率。在維護空氣品質的同時,我們也希望為環境再多盡一份心力,因此選用無一次性過濾耗材的靜電式油霧回收機,盡可能的減少垃圾製造與汙染。除此之外,我們選用的油霧回收機是採用高效能、低功耗的節能馬達,大幅降低對於能源的損耗,亦有效提升能源效率。

 

過濾完後產生的油滴被回收至集油槽,並重複使用

過濾完後產生的油滴被回收至集油槽,並重複使用

 

佳楠自1965年成立起,始終秉持著「以對待自己家人的心來對待同仁與鄰里」的堅持。對我們而言,我們所製造的油霧廢氣如果不進行嚴格的淨化處理,危害的不僅是我們第一線辛勤同仁們的健康,也是在傷害和我們呼吸同一片空氣的所有鄰居。

 

靜電式油霧回收機僅是我們對於環境友善的一個開端,佳楠仍持續規畫並穩健的落實各項綠色行動,在2022起以「製造最少的負擔,但為這片土地帶來最閃耀的光芒」為己任,接軌國際,積極精進各項永續作為,朝向「與土地共好」的目標邁進。

 

 

參考資料:

CNC Cutting Fluid: Types and Selection. Mellow Pine

How Oil Mist Can Affect Your Health. AMT Machine

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