An electric dust collector that is capable of enhancing collection efficiency. An exhaust pipe (4) consists of a steel pipe (14) whose exterior surface is lined with refractory material (15). A supporting member (5) is supported outside the exhaust pipe (4) and is inserted into the exhaust pipe (4)....http://www.google.es/patents/US6176902?utm_source=gb-gplus-sharePatente US6176902 - Electric dust collector and incinerator