FAQ
Q1: Why does filter cage quality directly impact filter bag lifespan?
Smooth, burr-free filter cages prevent abrasive wear and puncture tears on filter bags during high-frequency pulse cleaning. Substandard cages with rough weld joints, surface corrosion, or dimensional bendingrapidly abrade bag interiors, triggering premature bag failure and dust leakage.
Q2: What cage materials and surface coatings are available, and how to choose?
Mainstream options include electro-galvanized, hot-dip galvanized, silicone-coated, and 304/316L stainless steel. Galvanized cages suit non-corrosive ambient dust, while silicone-coated and stainless steel cages are recommended for high-temperature, acidic, or high-humidity flue gas to prevent rust and chemical degradation.
Q3: What causes frequent filter bag abrasion and structural tearing?
Premature bag wear is typically caused by deformed or bent cage wires, protruding weld burrs, broken welds, or undersized/oversized cage dimensions causing excessive friction. Quick fix: Replace with precision-welded, corrosion-protected filter cages manufactured to tight dimensional tolerances to ensure uniform bag support.
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