| 摘要 |
PURPOSE:To enhance electrostatic filtering dust collection effect, by such an inexpensive structure that a contact body is provided to the pipeline in the entry side of a filter device and dust is charged by the friction with the contact body. CONSTITUTION:Dust-containing gas 5 generated at the sintering time of an iron ore is introduced into a contact body 8 from an inlet pipe 7. The contact body 8 is formed, for example, so as to have a desired shape such that a vinyl chloride pipe with an inner diameter of 50mm and a total length of 9m is bent at right angles at two places on the way thereof and dust receives the friction with the contact body 8 at a sufficient speed for a sufficient time to be charged. The dust charged by friction is guided to a filter chamber 2 and collected by a filter 1 while flocculated by Coulomb's force.
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