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定期進行短時間的空車運轉。 MWN113脈動微振袋式除塵器的維護管理一、箱體袋式除塵器的箱體是固定的。其外部長時間經受風吹雨打,內部受到所處理氣體的污染,條件都是相當苛刻的。箱體維修分內外兩部分。外部維護外部維護主要是檢查油漆、漏雨、螺栓及周邊密封情況。對于高溫、高濕氣體來說,為了防止結露和確保安全,一般在外部有巖棉、玻璃棉、聚苯酯之類的保溫層。保溫層被雨水打濕后,會加快箱體的腐蝕,所以,放在露天場所的除塵器,每當下雨時要予以充分注意。內部維修箱體內側處于一個容易結露、附著粉塵以及氣體溶解后可能造成腐蝕的環(huán)境之中。鋼板之間及鋼板與角鋼之間的焊接部分,安裝濾袋的花板邊緣都是易被腐蝕的部位。因此,箱體內部的維修主要是要注意選擇能耐腐蝕的涂料,及時涂裝在易腐蝕或已經腐蝕的部位。在一般情況下,因凈化氣體多呈酸性,所以選用環(huán)氧樹脂類的耐酸涂料較多。二、閥門關于閥門的維修同樣分為運轉中和停車時的維修。運轉中的維修項目:①動作狀況,閥門開閉是否靈活、準確;②漏水、冷卻排水量,排水溫度;③驅動裝置(氣缸或電動缸)的動作狀況;④閥門的密封性。停車時的維修項目:①變形及破損;②閥門的密封性及動作靈活狀況。電控部分的連接及除塵設備安全閥的目的是為了在內部發(fā)生爆炸時,安全閥動作將爆炸壓力放散于大氣中去,以防止全部裝置破壞。安全閥動作的可能性雖然很少,但也必須定期地用手動開、閉,反復檢查其動作情況。安全閥在壓力降低后,應能自動地恢復原位而關閉,可使系統(tǒng)繼續(xù)運轉下去。三、灰斗粉塵大量積存于灰斗的主要危害是:①阻力增加,處理風量減少;②已清落的粉塵又被吹起,能使濾袋堵塞;③使入口管堵塞;④濾袋中進入粉塵可造成濾袋破損、伸長、張力降低等。 MWN113脈動微振袋式除塵器的故障及排結論本次設計的布袋除塵器制作加工簡單,使用方便,效率高,維修性好,適于在環(huán)境較差地方使用。但由于其濾袋數(shù)量所限,所以除塵能力有限。設計這種布袋除塵器,主要面對非專業(yè)研究的普通的使用群體,使其可以不用花費高成本來實現(xiàn)空氣的除塵。通過本次設計,我對除塵系統(tǒng)的設計有了深度的認識。在設計過程中所閱讀的資料和對實物的觀察很好的補充了我所欠缺的知識。在將要邁出校門的時候能夠又一次提高自己的知識水平,使我感到這學期生活的充實。特別在理論知識與實際生產的結合上得到的進步對我今后的工作有極大的幫助。我深刻的認識到在設計中不能只看理論能否實現(xiàn),還要看實際生產中易不易于加工和操作,有些不常用的或特定群體用不到的功能沒必要加在所設計的機器中。在設計前搞清面向的群體和主要要求實現(xiàn)的功能才能使設計出來的機器有實用價值。參考文獻[1] 金國森.除塵設備設計[M].上海:上??茖W技術出版社,1985.[2] 魏兆燦,[M].上海:上海科學技術出版社,1985.[3] 郝吉明.大氣污染控制工程[M].北京:高等教育出版社,1996.[4] 吳忠標,譚天恩.石灰 石灰石濕法脫硫中添加劑的研究.中國環(huán)境科學,1995[5] 浙江大學.旋流板設備設計參考資料.化工機械,1978[6] 郭豐年.鋼鐵企業(yè)采暖通風設計手冊北京:冶金工業(yè)出版社,1996[7]嚴興忠.工業(yè)防塵手冊.北京:勞動人事出版社,1989[8]譚天佑.工業(yè)通風.北京:冶金工業(yè)出版社,1994[9]馬廣大.除塵器性能計算.北京:中國環(huán)境科學出版社,1990[10]姜鳳有.工業(yè)除塵設備——設計、制作、安裝與管理.北京:冶金工業(yè)出版社,2007[11]趙振奇.冶金工廠除塵設備性能測定.北京:冶金工業(yè)出版社,1981[12中國環(huán)保產業(yè)協(xié)會袋式除塵委員會.袋式除塵器濾料及配件手冊.沈陽:東北大學出版社,1997[13] 中國環(huán)保產業(yè)協(xié)會袋式除塵委員會.全國袋式過濾技術研討會論文集.中國環(huán)保產業(yè)協(xié)會袋式除塵委員會,2003[14] 中國環(huán)保產業(yè)協(xié)會袋式除塵委員會.高溫袋式除塵技術應用實例.中國環(huán)保產業(yè)協(xié)會袋式除塵委員會,2003[15]張殿印,.北京:化學工業(yè)出版社,2005[16]張殿印,.北京:化學工業(yè)出版社,2003[17]嵇敬文.除塵器.北京中國建筑工業(yè)出版社,1981[18]張殿?。匠龎m器濾料及其選擇.環(huán)境工程,1991[19]張殿印,周品良.脈沖袋式濾袋失效誘因與防范.冶金環(huán)境保護,2004致 謝這次畢業(yè)設計是在我的導師王老師的悉心指導和幫助下順利完成的,因此在這里首先我要感謝王老師。整個設計過程,都凝聚著王老師大量的智慧和心血,從設計任務下達開始,王老師就在百忙之中抽出大量的時間對我們精心輔導,從開始的實習參觀,到總體方案的確定,及原理闡述和具體的部件設計,都離不開老師的指導和幫助。在短短幾個月的設計過程中,老師在思路上不斷的給我啟發(fā),幫助我改正錯誤,引導我不斷進取,不斷提高自己的設計思路和知識面,王老師嚴謹?shù)闹螌W態(tài)度,淵博的專業(yè)知識,活躍的思維及創(chuàng)新精神,都給我很大的幫助,使我受益匪淺,增強了我的知識面,在這里謝謝王老師對我的幫助!同時,這次設計的順利完成,還要感謝我的同組成員,在和他們的交流和互相幫助下,對我的設計思路和具體的設計過程,有了很大的啟發(fā)和幫助,本次設計的順利完成也得到了他們的大量幫助。另外向所有關心和幫助過我的師長、同學、朋友表示感謝!最后向在百忙之中的各位評閱這份設計的老師表示衷心的感謝!附錄1)外文翻譯Part 1 Performance characteristicsPlenum pulse bag type collector is a kind of dedusting equipment with high efficiency. It bines many advantages of collectors including loculose antiblow and pulse blow, and it has solved the disadvantages of deficiency of kinetic energy strength in loculose antiblow and pulse blow dedusting running in the same time, improved the applicability and dedusting efficiency, extended life span of the bag. There’s no venturi tube in the mouth of bag or blowing tube, that reduces working resistance and makes examining and repairing easy. Electromagnetic pulse valve is of these characters: be sensitive to control, high efficiency, long life span and so on. At present, this type dust collector has been used widely.Part 2 Basic structure and working principle1 StructureMain structures of plenum pulse bag type collector are as followers: box body and bag partment (integrative), dust store bin, wind inlet and outlet (including screw conveyer and cinder valve), ladder, baluster, air passage system (including offline pneumatic cylinder, electromagnetic pulse valve, pressed air bag), dedusting controller and so on. (1) Box bodyBox body is mainly used to fix cage, filter bag and air passage ponents, made into whole close from. Compressed air enters into box body first, and crushes inside of the filter bag while collector is dedusting. Box body is made into degree inclined plane, that can be prevented from seeper when used in the open air. There’s a door where someone can examine and repair on the top, installing and replacing cage, filter bag are all done here, that is very convenient. According to the difference of specification, box body is divided into some partments separated by armor plate between them and impermeable by air, offline dedusting will e true. There’s a lift valve in each partment, which breaks and filtrate smoke current of air. (2)Bag partmentBag partment is in the below of the box body, mainly used to contain cage and filter bag and from a filtration space, cleaning of smoke is mostly done here. Like the box body, according to the difference of specification, bag partment is divided into some partments separated by armor plate between them and prevented from disturbing, at the same time it forms one sedimentation space.There’s a leaked explosive hole on the wainscot of each partment, the number of leaked explosive hole is 8.Coal preparation equipment, there’re some coal fines produced in the process of coal preparation, but concentration of coal fine is far less than 65g/m3, so collector must not set leaked explosive holes. Even so, the filter bag should adopt antistatic filter material. You set leaked explosive hole whose area is according to the structure of wainscot position. Choose the material whose thickness is equal to 1 mm L2M anneal industrial pure aluminum plank, and the antipulls strength of industrial pure aluminum plank is 60Mpa, pared with the antipulls strength that is not less than 375Mpa of t