| 摘要 |
This invention relates to filtering flue gases and other gases containing dust and similar dirty constituents of fine-particle size, utilizing a pocket filter, and wherein certain of the dust constituents are agglomerated. In accordance with the invention, a quantity of filtered dust is continuously circulated ahead of the filter and added to the gas to be cleaned. An accumulating amount of the dust is removed from the filter, which corresponds to the amount of fine dust contained in the dust-laden gas to be cleaned per unit of time. Preferably, the filtered dust that is re-circulated represents a multiple of the dust accumulating per unit of time and this multiple may be of the order of 2 to 100 times that amount. |
