Dust removal skeleton customization: anti-wear adaptation to extend the life of filter bags
Sep 17,2025
In the dedusting system, the dedusting framework is often regarded as a "supporting role". However, for overseas factories, the inappropriate framework will lead to frequent wear and deformation of the filter bag, which will need to be replaced within 3-6 months, not only causing high filter material costs, but also affecting production due to downtime. The customized dust removal skeleton can extend the service life of filter bags by more than 50% through "wear-resistant design+precise adaptation", becoming a key accessory for controlling operation and maintenance costs and ensuring efficient operation of equipment, especially suitable for overseas application scenarios of various types of dust removal equipment such as bags and filter cartridges.
1、 Customized core: anti-wear design, reducing filter bag loss from the source
The wear of filter bags is mainly caused by friction between the skeleton and the filter bag, as well as dust impact. Customized skeletons can be designed with targeted measures to avoid these problems from the root:
1. The surface is treated without burrs to avoid scratching the filter bag
Traditional skeleton welding is prone to residual welding slag and burrs, and the filter bag can be easily hooked and torn during bagging, or continuously worn during dust cleaning vibration. The customized skeleton adopts the "CNC welding+sandblasting polishing" process, with flat and smooth welding points and a surface roughness of ≤ Ra1.6. When bagging, the filter bag is in contact with the skeleton without friction, and even high-frequency vibration during dust cleaning will not cause local wear and tear holes.
2. Structural optimization to disperse dust impact
For high concentration dust scenarios (such as mines and cement plants), a customized skeleton is installed at the bottom with a "conical guide cap" to guide the falling dust to slide into the ash hopper along the guide cap, avoiding direct impact of dust on the bottom of the filter bag; At the same time, add 2-3 "circular reinforcement ribs" in the middle of the skeleton to enhance its rigidity, prevent excessive deformation of the filter bag under airflow impact, and reduce local wear. This type of design can reduce the wear rate at the bottom of the filter bag by 60% and extend its lifespan from 8 months to 14 months.
3. Material customization, suitable for corrosion/high temperature wear
Choose wear-resistant materials based on working conditions: choose galvanized carbon steel skeleton for room temperature drying scenarios, which is low-cost and rust proof; Customized aluminum plated carbon steel skeleton for high temperature conditions, with temperature resistance and improved surface hardness; For corrosion scenarios, 316L stainless steel frame is used, which is acid and alkali resistant and has a smooth surface to avoid deformation and wear of the filter bag caused by corrosion.
2、 Accurate adaptation: fitting equipment and filter bag to avoid "improper adaptation" loss
The adaptation differences of different dust removal equipment and filter bag sizes are another important reason for the loss of filter bags. Customized skeletons solve this problem through "precise matching":
1. Customized according to device type, tailored to operational characteristics
Bag filter: Customized "multi section skeleton", with each section length consistent with the height of the filter bag (error ≤ 2mm), to avoid the skeleton being too long and damaging the filter bag, and too short causing the filter bag to sag and accumulate dust;
Filter cartridge dust collector: Customized "cylindrical fine diameter skeleton" with a diameter 3-5mm smaller than the inner diameter of the filter cartridge to ensure full unfolding of the filter cartridge and avoid excessive friction between the filter cartridge and the skeleton during dust cleaning.
2. Adjust according to the material of the filter bag to adapt to its expansion and contraction characteristics
The thermal expansion and contraction coefficients, as well as elasticity, vary greatly depending on the material of the filter bag. Polyester filter bags are compatible with an "elastic carbon steel skeleton" and can slightly expand and contract with the filter bag during dust cleaning; PPS high-temperature filter bags are customized with a "rigid aluminum plated skeleton" to avoid wrinkling and wear of the filter bag caused by deformation of the skeleton at high temperatures.
Summary: Customized skeleton="money saving tool"
For overseas factories, customizing dust removal skeletons is not an "extra expense", but a "cost reduction investment" - reducing filter bag loss through wear-resistant design, extending service life through precise adaptation, and ultimately reducing filter material procurement costs and downtime losses.
In the trend of global industrial cost reduction and efficiency improvement, customized dust removal skeletons have become a "must-have" in foreign trade dust removal accessories with the dual advantages of "wear resistance+adaptation", providing protection for overseas customers' dust removal systems.
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