Filter bags for boiler
Trends
China’s power boiler industry is accelerating its transition towards clean energy, with faster adoption of low-carbon options like gas and biomass. Ultra-supercritical coal-fired technology continues to lead globally, while high efficiency and intelligent integration are becoming mainstream. Retrofitting existing units for ultra-low emissions progresses alongside high-standard upgrades for new projects. Regional development shows resource-adapted differences, and leading companies are expanding faster into international markets.
Regulations
Tighter environmental policies are increasing retrofit costs, while rising carbon prices and volatile raw material prices are intensifying profit pressures. There is a significant reliance on imported high-end technologies and core components, with clear gaps in international brand competitiveness and manufacturing processes. The expansion of renewable energy is squeezing the operational space for thermal power, and increased demand for peak shaving is accelerating equipment wear. There is an uneven distribution of technology, capital, and resources across regions, with central and western areas facing supply chain and supporting infrastructure shortcomings.
BOILER Industry
Filter bags for boiler Overview
Optimize your plant’s emission control with our high-performance filter bags for boiler. Designed for the baghouse stage between SCR and desulfurization, these durable boiler baghouse filter bags withstand extreme temperatures and harsh exhaust. Maximize dust capture efficiency and ensure environmental compliance with ease.
1
Circulating Fluidized Bed
2
Calcination
3
Baghouse
4
Desulfurization
5
Chimney
Power Industry Filtration Characteristics
Dust Filtration Challenges
Operating Condition:
- Wide-temperature Operation
- Multi-pollutant Cooperative
- Fuel Diversity
Dust Property:
- Prone to blinding
- Complicated Dust Properties
- Corrosion
Operating Condition:
- Retrofitting of old equipment
- Integrated Grid Connection
- Regulations and Emission Standards
Power Industry Filtration Solutions
Filter Media and Filter Bags for boiler Plants
Aokai boiler baghouse filter bags products that are most commonly used in the Power Industry:
Reinforced Low Adhesion Treatment
Through a post-treatment process, we apply a specialized chemical solution (developed in-house) to the filter media, which imparts enhanced water and oil repellency.
AKG High Cost Performance Customized Filter Bags
Self owned power plants in the power industry offer customized solutions for cost-effective filter materials based on different combustion media.
Cabture® Lifespan Filter Bags
We carefully select high-quality products from domestic professional PTFE fiber manufacturers, whose fibers not only have better uniformity, but also have more concentrated fineness. The PTFE filter media made from this raw material has even better performance.
CareClean® Low Resistance Filter Bags
Filter bags are constructed with revolutionary T-shaped multi-layered filter media. Its filtration characteristics include high air permeability, high filtration efficiency, and abrasion resistance.
Practical Application Case of Filter Bags in boiler Industry
Case of thermal power plant
Handling air volume（m3/h）：260,000
Combustion medium：10% sludge+90% coal
FGDD：Limestone-gypsum wet FGD+SNCR
Coal quality with sulfur content(%)：＜1.0
Maximum Surge Temperature（℃）：160
Gas Composition：SO2＜200mg/m3 NOx＜400mg/m3 O2＜12%
Bag size：160×8000 mm
Filter bag：CareClean® Low Resistance Filter Bags
Emission：＜10mg/m3
Case of thermal power plant
Handling air volume（m3/h）：13.8 / 23万
Combustion medium：coal
FGDD：Semi-dry FGD+SNCR/SCR
Coal quality with sulfur content(%)：＜0.5
Continuous Temperature（℃）：＜100
Maximum Surge Temperature（℃）：160
Bag size：Φ127×8110 / Φ160*6300 mm
Filter bag：CareClean® Low Resistance Filter Bags
Emission：＜3mg/m3
Application Case Studies in the Power Boiler Industry
After approximately one year of operation with Careclean® resistance filter bags at a CFB boiler in a Zhejiang-based thermal power plant, particulate matter tests conducted at one month and six months of operation both showed outlet concentrations around 1 mg/m³. The system also demonstrated low operating resistance, receiving positive feedback from the customer.
| Item | Before(PPS filter media) | Before Replacement(Careclean®) | Operation Effect |
|---|---|---|---|
| Operating resistance (pa) | 1200-1500 | 520-600 | differential pressure drop 50% |
| Outlet concentration (mg/m3) | 6.8 | <1 | Near zero emissions |
| Save electricity costs per year | / | >¥8,000 (estimate) | ¥0.4.kW.h |
| Save electricity costs (Within its lifespan) | / | ¥260,000 (estimate) | 4years |