The bag filter for coal-fired boilers is a highly efficient equipment specially designed for boiler flue gas dust removal. It is suitable for the purification of high temperature, high humidity and high concentration dust in power plants, industrial boilers, heating stations and other systems. Compared with electrostatic precipitators, bag filters have higher dust removal efficiency and stronger adaptability, and are particularly suitable for small and medium-sized boilers and environmental protection upgrade and transformation projects.
★Product Features
1. High temperature and corrosion resistant design
Select high temperature resistant (150℃～250℃) and corrosion resistant filter materials, such as FMS, PPS, and PTFE coated filter materials, to ensure long-term stable operation of filter bags in high temperature acidic flue gas.
2. High efficiency pulse jet cleaning system
Adopt offline pulse jet cleaning technology, which can clean more thoroughly, reduce filter bag wear and keep the system running at low resistance.
3. Modular compartment structure
Each filter chamber is independently controlled to achieve non-stop maintenance, which is convenient for maintenance and operation management.
4. Pretreatment and protection system
Equipped with gas cooling, ash hopper pre-dust removal, temperature alarm system, etc. to prevent high temperature or sparks from burning the filter bag and improve safety.
5. Intelligent control system
Equipped with PLC automatic control system, real-time monitoring of pressure difference, temperature, cleaning cycle, etc., to achieve automatic operation and remote diagnosis.
★Product advantages
1. Extremely high dust removal efficiency
The outlet dust concentration can be stably controlled at ≤20mg/Nm³, and can reach <10mg/Nm³ after optimizing the system, meeting the ultra-low emission requirements.
2. Stable operation and low maintenance
High-quality filter material + scientific cleaning = long-term stable pressure difference, the service life of the filter bag can reach 2~4 years, reducing operation and maintenance costs.
3. Strong adaptability to flue gas complexity
It can effectively treat sulfur-containing, water-containing, and acid-containing flue gas, suitable for the changeable and harsh working environment of coal-fired boilers.
4. Environmental protection meets standards and has strong scalability
It can be used as an environmental protection upgrade and transformation plan for electrostatic precipitators, or linked with desulfurization/denitrification systems to meet increasingly stringent environmental regulations.
5. Energy saving and environmental protection
The system design is optimized, with low wind resistance and low energy consumption. It can realize intelligent energy-saving operation with frequency conversion control.
★Applicable boiler types
Industrial chain furnace, fluidized bed boiler
Cogeneration coal-fired boiler
Biomass boiler (can improve anti-blocking performance)
Small and medium-capacity boilers in power plants (≤75T/h commonly used bag dust removal)
★Selection recommended parameters (reference)
Project parameter range
Processing air volume 10,000～200,000 m³/h
Flue gas temperature 120℃～250℃ (insulation recommended)
Dust concentration ≤100 g/Nm³ (inlet)
Outlet emission concentration ≤10～20 mg/Nm³
Cleaning method Offline pulse cleaning
Filter bag material PPS, FMS, PTFE, etc.

★Company Introduction

Yancheng Hongcheng Chaoyu Environmental Protection Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales, installation, commissioning and service of environmental protection and energy-saving equipment such as atmospheric environment treatment, waste gas treatment and sewage treatment. It is a well-known domestic manufacturer, system integrator and general contractor of dust removal, desulfurization and denitrification, ultra-low emission, waste gas treatment and sewage treatment equipment. The various types of dust removal equipment, desulfurization and denitrification equipment, sewage treatment and other environmental protection and energy-saving equipment produced by the company are advanced in technology and reliable in quality. They are widely used in thermal power, coking, garbage power generation, chemical industry, papermaking, steel, metallurgy, carbon, glass, cement building materials and other industries. The products are sold to more than 20 provinces and cities across the country and have been widely praised by customers.

★Factory Appearance

★FAQ

Q. How high is the dust removal efficiency of bag filters?
A. The dust removal efficiency can generally reach more than 99%, and can effectively filter fine dust above 0.3 microns.

Q. Can bag filter handle high temperature gas?
A. It can handle high temperature gas up to about 250℃. It needs to use high temperature resistant filter material and control the temperature and humidity of the gas.

Q. How to extend the service life of bag filter?
A. Choose appropriate filter material, clean dust on time, avoid high temperature shock and dust blockage, and perform regular inspection and maintenance.