The biomass steam boiler bag filter is only suitable for bag filters and not for any other dust removal methods. The ash to slag ratio after biomass combustion is between 10:0 and 8:2, and the amount of combustion dust is large.

The particle size of combustion dust is small The bulk density of the burning material is very small and will not cause an increase in the capacity of the volumetric ash conveying equipment. The bulk density of biomass after combustion is generally between 1.8-0.5T/m ³

Biomass cannot be completely burned in the furnace, and cannot be burned again in the flue due to insufficient oxygen content. Large dust particles will maintain combustion temperature and undergo secondary combustion due to the short heat exchange time in the flue gas.

Performance characteristics of bag filter for biomass steam boiler:
1. By using downward air intake, it has a pre dust collection effect on the dusty gas, avoiding direct flushing of the bag by the dusty gas, reducing the dust concentration of the dusty gas, and extending the life of the filter bag and pulse solenoid valve.

2. The sealing material of the bag filter is made of high temperature resistant materials.

3. The ash cleaning spray pipe adopts an elongated type to keep the pulse solenoid valve away from high-temperature flue gas and avoid damage to the valve disc of the pulse solenoid valve due to high temperature.

4. The filter bag adopts a high-temperature resistant filter bag, which can handle flue gas temperatures below 250 ℃.

5. The filter bag mouth adopts an elastic expansion ring, which has good sealing performance and is firm and reliable.

6. The filter bag skeleton adopts a circular shape, which reduces the friction between the filter bag and the skeleton, prolongs the service life of the filter bag, and facilitates the unloading of the bag.

7. Adopting the upper bag extraction method, the top cover door is opened when changing the bag, and the skeleton can be extracted to replace the bag, improving the operating conditions for bag replacement.

8. The dust cleaning control adopts timed control. According to the set time, every cleaning cycle, each row of filter bags is cleaned one by one.

This article is original by Yancheng Haiyun Environmental Engineering Technology Co., Ltd