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在袋式除塵領域，通常都將布袋比作袋式除塵器的心臟，布袋除塵器能處理什么樣的含塵煙氣，主要還取決于用來制造布袋的化學纖維本身的條件。一般的煙氣溫度條件下，只需要布袋能夠耐150℃以下的溫度，這些場合，滌綸，丙綸，晴綸，錦綸等化學纖維可以基本勝任。而對于煙氣溫度比較高的場合，如：化工，炭黑尾氣，煉鐵廠高爐煤氣，水泥廠立窯尾氣，電石廠窯爐尾氣，煉鐵廠煙氣，瀝青混泥土攪拌瀝青煙氣，耐火磚窯爐煙氣，焦化煙氣等，一是因為這些粉塵含塵煙氣溫度粉塵因受比電阻限制不適合于電收塵器收集，只能用布袋或其他方式收集，二是如需將含塵煙氣溫度降至150℃以下的投資較高或受現(xiàn)場場地的限制，三是因為含塵煙氣中因為含有硫的成分，含塵煙氣具有酸露點，含塵煙氣只能在酸露點以上即溫度較高的狀態(tài)下進行過濾分離等因素，這樣就需要有一種能耐受較高溫度的化學纖維用來做濾材，我公司采用國際先進標準，用先進設備制造生產了芳綸耐高溫針刺過濾氈，按照工況條件的不同要求，我公司可對芳綸耐高溫針刺氈做各種功能性處理，如拒水防油，PTFE浸漬，涂層，覆膜等。
Bag is seen as the heart of  de-dusting equipment in the field of bag de-dusting. What dust smoking can be collected completely depend on bag’s chemical fiber. Polyester ,polypropylene, acrylic and Nylon are suitable for temperature under 150℃。Smoking temperature from such areas as chemistry, carbon black exhaust, iron works ,oven exhaust from cement factory usually is high. Only bag collector can be used to collect these smoking. There are three reasons. First one is the limit of specific resistance. Second one is that it will take too much to reduce the smoking temperature to below 150 ℃ or the limit of occasion situation. Third one is that there is sulfur in the dust smoking and dust smoking has acid dew point  and the smoking only can be filtered and separated above the acid dew point that means high temperature. Under this occasion filter material should be anti-high temperature. We bring in advanced machine to develop and produce the Aramid needle felt according to advanced standard. Functional finishing treatment can be made according to special working conditions.