Shengjing Environmental Protection Company focuses on the design, production, and installation of dust collectors for coal-fired boilers and biomass boilers. Our company has experience in treating boiler flue gas, and the dust removal effect meets the design standards.

The structural composition of the boiler bag filter:

The structure of the boiler dust collector consists of a complete set of dust removal devices, including upper, middle, and lower boxes, ash discharge devices, spray cleaning systems, bypass flues, valves, platform escalators, protective devices, automatic water spray cooling systems, pre coating ash systems, compressed air storage tanks, turbidity meters, and bag breaking detection devices. The boiler dust collector is an external filter type dust collector, which means that the dusty gas is outside the filter bag, the clean air is inside the filter bag, and the bag opening is upward. Start the pulse blowing valve during dust cleaning to radially deform the filter bag and shake off the dust. This dust collector has the characteristics of dust removal (dust removal efficiency exceeding 99.5%), simple structure, and offline maintenance.

The installation of boiler dust collectors requires great caution and cannot make any mistakes, otherwise the equipment will not achieve the ideal dust removal effect. Installation is a very important step, and some installation personnel provide guidance to ensure that no step or process is wrong. Only in this way can the equipment achieve the desired dust removal effect and meet the environmental protection regulations for dust concentration emissions.

Technical characteristics of coal-fired boiler dust collector

1. The equipment is a partitioned structure with different specifications of compartments, which are flexible and convenient to combine, suitable for boilers of different sizes and various site layouts.

2. Under normal circumstances, the service life of filter bags can generally reach two to three years or more.

3. Adopting a three state dust cleaning method, the dust cleaning effect is good, and the operating resistance of the dust collector is low. Due to long-term experiments and research on the spray system, I have mastered the design methods of different filter bag combinations and filter bag lengths.

4. Multiple types of main pipes such as wedge-shaped and stepped entrances are used. Make the airflow distribution in each compartment uniform.

5. The diversion device used in the ash hopper and air duct can reduce system resistance and extend the service life of the filter bag.

6. The use of automated equipment to produce filter bag cage bones can ensure the flatness, smoothness, and accurate size of the bag cage, thereby extending the service life of the filter bag.

7. The flower board produced by the imported multi station automatic punching machine is flat and has good sealing with the filter bag.

8. The sealed inspection door designed and manufactured can prevent air leakage.

9. Low leakage bypass lift valve can prevent short circuit of flue gas.

10. A top cover that is sealed and insulated.

11. The automatic control equipment has three control modes: differential pressure, timing, and manual. It realizes system control of offline valves, pulse valves, ash discharge valves, bypass valves, etc. of the dust collector.

12. The filter bags come in different lengths to reduce the footprint of the equipment.

Process principle of boiler dust removal equipment:

When the dust collector of a coal-fired boiler is working, one thing is to perform pre separation. When the discharged smoke enters the intake pipe, a large part of the dust will be separated due to the obstruction of the partition, which is the pre separation process. The next step is the complex filtering process. Firstly, the smoke and dust pass through the filter bag, leaving a lot of dust on its surface. Then, it is discharged through a fixed valve through the pipeline, mainly through gear shifting. In principle, it can be divided into six gears, first through the air inlet, then through the transmitter, filter, solenoid valve, and finally through the cylinder to the air outlet and discharged into the atmosphere. In order to operate and manage, factories usually choose fixed cycle dust filters. The temperature of the entire dust collector should be controlled between 60 ° C and 300 ° C during operation, otherwise the expected effect cannot be achieved.

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