The bag filter for coal-fired boilers is a newly developed high-efficiency long bag filter, widely used in boiler, flue gas dust removal, material recovery, and dust control industries such as power, metallurgy, building materials, and chemical industry. It is a large-scale dust removal equipment with large air volume, good dust cleaning effect, high dust removal efficiency, small footprint, stable operation, reliable performance, and easy maintenance. The product adopts modular production and stable quality. It has been successfully applied in industries such as electricity, cement, and steel, and can be widely used in industries such as metallurgy, casting, electricity, building materials, mining, and chemical engineering.

2、 Exclusive technology for bag filter of coal-fired boiler

The QYCM pulse bag filter used in boilers has applied many proprietary technologies, which have been recognized by various design institutes and experts and have been verified in practice. There are mainly: high-efficiency pulse blowing technology: the reasonable selection of imported new low resistance, high-efficiency, long-life diaphragm electromagnetic pulse valves, coupled with the unique design and processing methods of the blowing pipe, has completely changed the cleaning method of bag filters.

1. Application technology of high-temperature resistant filter material: Based on the characteristics of coal-fired boiler flue gas in China, cost-effective high-temperature and corrosion-resistant boiler filter material is used, and PTFE membrane treatment is applied to the fibers to solve the problems of high boiler flue gas temperature, which ordinary filter material cannot withstand, and short service life of ordinary filter material. At the same time, the performance price ratio of filter material is also taken into account.

2. Offline maintenance technology: The application of new lift valve technology has realized the non-stop maintenance function of the dust collector (offline and online cleaning methods can be freely selected). The protective device of the lift valve eliminates dust collector failures caused by lift valve issues, ensuring that the operation of the boiler is not affected by dust collector problems.

3. Dust collector protection technology: The application of online detection equipment such as external bypass system and temperature and humidity measurement has solved the problem of protecting the dust collector during boiler oil combustion and boiler failure.

4. Detection and monitoring technology: Based on the characteristics of boiler dust collectors, advanced online detection and monitoring equipment such as flue gas temperature, humidity, dust collector operating pressure detection, material level detection, and operating equipment fault detection are set up to complete all measurement, monitoring, control, alarm, protection, and interlocking functions inside the bag filter. The operation of the dust collector can be monitored at any time.

5. PLC programmable controller technology: using the PLC programmable controller provided by SIEMENS company for control, with communication interface with the system DCS, it can achieve manual/automatic control of the bag filter.

6. Resistance control of equipment: Through a series of unique considerations in equipment design, the safety and reliability of the overall resistance of the equipment are ensured from both the structure and filter material aspects.

The application of the above series of advanced technologies ensures that our company's dust collectors have first-class technology and excellent price performance ratio.

　　Boiler bag filterIt consists of the dust collector body, protection system, compressed air system (including air storage tank, oil-water separator, pipeline), control system (including instruments, PLC cabinet, MCC cabinet, on-site operation cabinet), etc.