Bag filter accessories: selection techniques for high-quality filter bags and frames
Feb 28,2026
The filter bag and frame are the core components of the bag filter, which directly determine the dust removal efficiency, equipment life, and operational stability, especially suitable for industrial dust treatment scenarios. In the process of foreign trade procurement and use, scientifically selecting the two can effectively reduce operation and maintenance costs and avoid equipment failures. The following are concise and practical selection techniques.
1、 Selection techniques for high-quality filter bags
The core function of a filter bag is to filter dust, and the selection should be based on the adaptability of the working conditions, material characteristics, and durability. There is no need to excessively pursue high-end materials, just fit the actual needs.
1. Adapt to working conditions parameters: prioritize matching dust types (viscosity, corrosiveness, high temperature, etc.), dust concentration, and operating temperature. For example, PTFE and fiberglass filter bags can be used for high-temperature dust (>120 ℃); Choose acid and alkali resistant materials first for corrosive dust; High viscosity dust requires the use of filter bags with smooth surfaces and easy cleaning to reduce the risk of clogging.
2. Pay attention to key material indicators: focus on checking filtration accuracy, air permeability, and tensile strength. The filtration accuracy needs to match the emission requirements, the air permeability directly affects the energy consumption of the equipment, and the tensile strength is related to the service life of the filter bag to avoid damage caused by dust impact or cleaning pressure.
3. Pay attention to process details: The stitching of high-quality filter bags should be tight, without jumpers, and the sealing performance at the interface should be good to prevent dust from escaping through the gaps; Filter bags with surface coating or anti sticking treatment are more suitable for high viscosity dust scenes and can reduce the frequency of dust cleaning.
2、 Selection Techniques for High Quality Dust Removal Skeleton
As the supporting structure of the filter bag, the dust removal skeleton needs to meet the requirements of rigidity, corrosion resistance, and adaptability to avoid damage to the filter bag caused by deformation and corrosion of the skeleton.
1. Material and anti-corrosion treatment: Carbon steel skeleton can be used for conventional working conditions, with high cost-effectiveness; Wet and corrosive working conditions require the use of stainless steel frames or carbon steel frames that have undergone anti-corrosion treatment (galvanizing, spraying) to prevent rusting and deformation. The anti-corrosion layer should be uniform and free from detachment to ensure long-term stability during use.
2. Structural and dimensional accuracy: The diameter and length of the skeleton need to be accurately matched with the filter bag. If the gap is too large, it can easily cause the filter bag to fall off and dust to accumulate. If the gap is too small, it will squeeze the filter bag and affect the cleaning effect. At the same time, the longitudinal and transverse bars of the skeleton should be evenly distributed, with sufficient rigidity to avoid deformation during dust removal.
3. Detail design: The top of the skeleton needs to be smoothed to avoid scratching the filter bag with sharp edges and corners; The bottom fixing device needs to be firm, ensuring easy installation and not easy to loosen, reducing vibration and wear during equipment operation.
3、 Precautions for Matching Filter Bag and Skeleton
The compatibility between the two is the key to the stable operation of the equipment, and two points should be noted: first, precise size matching to ensure that the skeleton can be smoothly loaded into the filter bag without looseness or compression; The second is material coordination. For example, under high temperature conditions, both the filter bag and the skeleton need to have high temperature resistance to avoid damage to the filter bag due to insufficient heat resistance of the skeleton.
In addition, when choosing, it is advisable to combine past usage cases and prioritize the use of accessories that have been validated in industrial scenarios, balancing practicality and economy. There is no need to blindly pursue high-end products, and adapting to one's own working conditions is the optimal choice.
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