The use of dust collector bags can cause various problems after a period of use, which is enough to raise awareness. We need to solve these small problems in order to ensure the normal and smooth operation of the entire dust removal equipment. What are the influencing factors that make dust removal bags prone to problems? 1、 Product quality: The processing of dust removal bags is particularly important. In recent years, some small manufacturers have adopted small sewing machines as processing equipment, and used inferior thread as raw materials during processing, resulting in fake and fake products, and their processing level is far behind. The problems and troubles caused to customers will continue to increase. Causing the dust removal bag to develop various phenomena such as open lines, cracks, and thinning of the substrate surface after a short period of use. A slightly smaller size of the cloth bag can also cause inconvenience. Although it can be used, after adsorbing dust with a higher density, the bag will fall off after a period of use. 2、 Dust medium: The choice of dust bag fabric depends on the dust properties of the dust, taking into account whether the dust contains acids, alkalis, or highly corrosive substances. Select suitable fabrics based on the nature of the dust, so that the filter bag can absorb the dust normally without affecting its service life. We will do our best to achieve customer satisfaction and seek reputation through quality. 3、 Temperature of use: Accurately selecting a dust removal bag suitable for the corresponding dust temperature is the key and hub of the filter bag. If the temperature is too high, the selected dust removal bag will exceed the normal operating temperature. If the filter bag is light, it will shorten its service life, and if it is severe, it will be burned out in a short period of time. Therefore, when selecting a bag, it is necessary to measure and calculate the inlet temperature of the dust collector before selecting the corresponding dust bag. Reduce unnecessary troubles and troubles. 4、 Filtering wind speed: The high filtering wind speed of the bag filter is the main reason for the damage of the dust removal bag. In recent years, some units have blindly reduced equipment costs and increased profits. When designing bag filters, they have improved the filtration air speed. Although there has been no significant response from users in a short period of time, the service life of the filter bag has been shortened. This not only does not save customers money, but also brings a significant economic burden and prolongs their time. Introduction to the filtration performance of dust removal bags: The efficiency, resistance, breathability, dust holding capacity, and service life of filter materials are collectively referred to as filtration performance. 1. Filtering efficiency. On the one hand, it is related to the structure of the filter material, and on the other hand, it depends on the dust layer formed on the filter material. The filtration efficiency of short fibers is higher than that of long fibers. From the perspective of dust layer, for thin filter media, the dust layer is destroyed and the efficiency is greatly reduced after cleaning, while thick filter media can still retain some dust in the filter media after cleaning, avoiding filtering and cleaning. Generally, it can achieve a high dust collection efficiency of over 99.0%. So it is necessary to choose according to specific usage parameters. 2. Dust holding capacity. Also known as dust load, it refers to the amount of dust accumulated per unit area of filter material when the given resistance value is reached. The capacity of the filter material affects its resistance and cleaning cycle, prolonging the service life of the dust removal filter bag. Choose a filter material with a larger capacity. The dust holding capacity is related to the porosity and air permeability of the filter material. 3. Breathability and resistance. Breathability refers to the amount of gas passing through a unit area of filter material under a certain pressure difference. The resistance of filter media is directly related to its air permeability. The higher the air permeability, the greater the allowable air volume per unit area. 4. The filter material has a lifespan. The duration of damage to the filter material during normal use, and the lifespan of the filter material depends on its material and usage conditions. Under the same conditions, dust removal process design can also extend the service life of filter media. Analysis of several reasons for the damage of dust removal bags: The uneven distribution of air intake in the dust collector can easily lead to high levels of dusty exhaust gas directly impacting local bags. The solution to local bag perforation and short service life in the exhaust gas area is to install an intake distribution guide plate at the inlet duct of the dust collector, or replace the bag with a new one for frequently worn parts. For example, glass fibers are sensitive to mutual wear, and the distance between dust removal bags is too small or the skeleton is bent, which can easily cause wear between the bags. So the staff should adjust and install the filter bag firmly and replace the bent keel. If the cleaning effect is not good when it is too small, the cleaning cycle should be increased and the pressure of the blowing air should be increased. If it is too large, the friction between the cloth bag and the skeleton will accelerate wear. The best combination is that the circumference of the cloth bag is 10-20mm larger than that of the skeleton, and the diameter difference between the dust removal cloth bag and the skeleton is related. The length should be consistent, and special attention should be paid to certain filter cloths that vary greatly with temperature and have elongation characteristics. Or rough surface caused by corrosion, when there are holes or burrs at the welding points of the dust removal skeleton. It will also accelerate the wear of the dust removal bag. It will cause wear at the folds of the dust removal bag and poor sealing between the dust removal bag and the porous plate. It is better to use a substitute elastic ring. It is easy to cause mechanical friction on the upper part of the bag, and the alignment of the Venturi tube or pulse tube with respect to the bag is not correct. Should be adjusted. It will accelerate the wear of the cloth bag, and the cleaning of the dust removal cloth bag will be too frequent. Should be adjusted. It will accelerate the wear of the cloth bag. The dust content in the exhaust gas exceeds the design specifications. It will also accelerate the wear and tear of the cloth bag. The dust collector's ash hopper stores too much dust. And it will also reduce the service life of dust collector components, all of which will result in excessive emissions from the dust collector. So everyone should take it seriously.
