Bag dust collector smokes and ash causes - Database & Sql Blog Articles

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When using the bag filter, we will often encounter some equipment failures. When problems occur, we must know the cause of the failure and the solution. The following Qingshan Environmental Protection will explain the reasons for this.

Through years of experience in production and installation, we are told that there are two kinds of smoke and dust in the air outlet of the bag filter. One is continuous smoke, that is, due to excessive aging of the dust bag for a long time, the damage is serious, the dust bag is not tied loosely, or the dust collector The upper and lower hanging mouths are not tight, and the continuous hanging between the upper hanging mouth and the flower board, the flower board and the flower board is not tight and causes dust leakage. The other is to smoke in an instant. In this case, although the dust bag is damaged, it is not very serious. When the dust collector is blown, it will instantly emit smoke.

When it is found that most of the dust bag is damaged, it should be replaced completely. It is best to replace the dust bag when the dust collector stops working. At this time, the pulse controller should be closed, and the manhole door at the top can be opened to disassemble the bag. First, take out the dust removal skeleton, then squeeze the spring ring on the upper edge of the bag into a concave shape, pull out the dust bag, and clean the dust on the flower plate hole before installing the new cloth bag.

When searching for the cause of the dust of the bag filter, it is possible to determine which dust bag is leaking according to the number of bits corresponding to the electromagnetic pulse valve and the pulse controller when the smoke is emitted from the air outlet. The uncovering bag dust collector can also use the flashlight to detect the dust-removing dust bag from the upper box observation hole; or open the pulse cover after opening the cover, and find out which venturi smoke from the blowing process, that is The dust bag is leaking. Then, according to the problem that arises. Because most of the dust bag is damaged, it should be replaced completely. It is best to replace the dust bag when the dust collector stops working. At this time, the pulse controller should be closed, and the manhole door at the top can be opened to disassemble the bag. First, take out the dust removal skeleton, then squeeze the spring ring on the upper edge of the bag into a concave shape, pull out the dust bag, and clean the dust on the flower plate hole before installing the new cloth bag.

When the bag filter is replaced with a dust bag, check the damage. The factors affecting the life of the dust bag are dust properties, air distribution, and processing quality of the dust skeleton. If the welding of the bag skeleton is not strong, the welding is carried out during the process of use, and the dust bag is broken. It should be welded in time, and the dust-removing skeleton burr welding slag should be smoothed or replaced with a new dust-removing skeleton. The dust bag skeleton is usually welded with a wire of 4 mm in diameter. There are two common welding methods, one is spot welding with spot welding, and the other is welding with oxygen-acetylene.

The former method has high production efficiency, smooth surface, less burr and less deformation. The dust collector cannot work with a damaged dust bag, otherwise it will accelerate the scrapping of the dust collector. When a small area of ​​individual dust bag is damaged, in order to save money, it is recommended to use the old cloth bag or the same material new filter cloth to fill the hole. The hole filling method is to use the silicone rubber compound for bonding, as long as the bonding The use temperature and chemical properties of the agent can be adapted to the process conditions. The latter method has low production efficiency, rough surface and easy deformation. In addition, there are plastic frames used, but such frames are not suitable for use at high temperatures. During the spraying process, since the dust bag is cleaned once, it will rub once with the outer surface of the dust removing frame. Therefore, after the dust bag is used for a certain period of time, although it is not damaged, the contact surface between the inner surface and the dust removing frame is worn out. The original part can be staggered according to the wear marks to avoid the wear and tear in the original place, which can extend the service life of the dust bag.