| 摘要 |
The invention relates to the filter devices for removal of dust from gas and can be used in ferrous, nonferrous metallurgy, industry of building materials and other branches. A sectional bag filter for gas treating includes a housing with supply and discharge pipes divided into chambers of contaminated and pure gas, a filtering tubes with filter surface made of fabric, a system of pulse regeneration of tubes and a system of identification of damages of the filter surface of tubes, which includes an ejector, a dust detector made in the form of a chamber with transparent side walls and located between light source and photo cell, and branch pipes. The chamber of pure gas is divided into the sections, which are connected with discharge branch pipe by flues, the flue of each section is equipped with a cutoff shutter, the system of identification of damages of the filter surface of tubes is installed in each section, in this case the ejectoris installed in the flue, and its supply and discharge branch pipes are brought out outside the flue, the receiving branch pipe of ejector is connected with the dust detector; moreover the exhaust duct of the detector is connected with the flue, and the detector itself is equipped with a branch pipe of introduction of regenerating air. The invention allows to simplify the design, operation and maintenance of the filter, and to increase the reliability of its operation.
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