As ultra-low emission retrofitting gains momentum, high-performance dust-collection filter bags are entering a phase of large-scale replacement.
2026-06-23
Since the second half of 2025, nationwide projects for ultra‑low‑emission, deep‑level retrofits in the steel, cement, waste‑incineration, and coking industries have been launched in rapid succession, directly driving sustained growth in demand for high‑temperature, corrosion‑resistant dust‑collection filter bags. According to monitoring data from the Environmental Protection Industry Association, the domestic market for dust‑removal filter media exceeded RMB 18 billion in 2025, with year‑on‑year increases of 12.6% in demand for PPS, PTFE‑coated, and aramid composite filter bags.
Environmental protection authorities in many regions have intensified random inspections of flue-gas online monitoring systems, and regional particulate‑matter emission limits have been tightened to no more than 5 mg/m³. Standard ambient‑temperature polyester filter bags can no longer meet the new standards. Industry surveys indicate that a significant portion of existing dust‑collection equipment suffers from bag blinding, bag damage, and inadequate filtration efficiency, with concentrated replacement orders in the fourth quarter of 2025 expected to increase by over 30% year over year.
On the technology front, nano‑coating, tar‑resistant modification, and low‑temperature dust‑removal‑specific filter media have become the mainstream in R&D. Pre‑spraying baghouse solutions tailored to sticky oil‑fume conditions in coke ovens and waste‑incineration applications have been widely adopted, effectively extending filter‑bag service life by more than 30%. Meanwhile, industrial clusters continue to mature, with filter‑media manufacturers rapidly deploying fully automated needle‑punching, thermal‑setting, and pinhole‑infrared‑inspection production lines. Digital quality control has significantly reduced bag‑burst failure rates, helping industrial enterprises maintain stable compliance with emission standards.
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