zozen boiler
Home Service FAQs FAQ of coal-fired boilers What are the common dust removal equipment for coal-fired boilers?

What are the common dust removal equipment for coal-fired boilers?

11 Nov 2022

Commonly used dust removal equipment of SZL boiler includes multi-tube dust collector, wet scrapper and bag filter.


1. Multi-tube dust collector: XTD type vertical ceramic multi-tube dust collector has the advantages of wear-resistance, high temperature resistance, corrosion resistance, low cost, etc. Its collection efficiency is not less than 95%, resistance is not higher than 900Pa and mainly removed dust granularity is greater than 20um.


Design, manufacture and acceptance of multi-tube dust collector are according to Multicyclone for Industrial Boilers HJ/T286-2006 and Technical conditions of Cyclone Dust Collector for Industrial Boilers JB/T8129-2002.


2. Wet scrapper: XL type wet scrapper has single drum and double drum two kinds which can separate gas and steam by inertial separation and water film wash and adsorption. Its collection efficiency could be 92-98%, drum resistance is 700Pa, and venturi resistance is 1200Pa. Flue gas desulfurization can be carried out by using alkaline water for flue gas cleaning.


Design, manufacture and acceptance of wet scrapper are according to Specification for Granite Wet Flue-gas Desulphurization & Precipitator Device HJ/T319-2006.


3. Bag filter: SZL boiler adopts pulse bag filter whose collection efficiency is up to 99% and resistance is lower than 1500Pa. It uses compressed air pulse to clean dust.


Temperature endurance, filtration efficiency, air permeability and strength are the important quality indexes of bag filter and also are the important factors of price.


Manufacture and acceptance of bag filter are according to Steel Welded Atmospheric Pressure Vessels JB/T4735-1997 and Specification for Bag House GB/T6719-2009.


In order to meet flue gas discharging standards in the different areas, double-step dust removal is generally used to reduce the particle content in flue gas. With double-step dust removal of multi-tube dust collector and wet scrapper, flue gas particle content can be controlled to lower than 100mg/m3 while with double-step dust removal of multi-tube dust collector and bag filter, flue gas particle content can be controlled to lower than 30m/m3 and can be controlled to lower than 20m/m3 by using coated dust bag.

Related FAQs View More
Related news View More
  • ZOZEN Boiler Efficiently Supports Development of Venezuela's Meat Processing Industry
    In recent years, Venezuela's food processing sector has experienced rapid growth alongside gradual economic recovery, with meat processing as a vital component of its food industry undergoing continuous expansion. Meat processing imposes stringent requirements on equipment performance, particularly steam boilers as core production facilities, whose efficiency, stability, and environmental compliance directly impact product quality and operational costs. This context has driven increasing demand ...
    25 Mar 2025
  • ZOZEN Boiler Assists Luxshare Precision Vietnam Factory
    Luxshare Precision Technology Co., Ltd., established in 2017 with a total investment of 18 billion RMB, is a globally renowned manufacturer of precision structural components. It serves major brands in fields such as information technology, automotive, and consumer electronics. As an important overseas branch, Luxshare Precision (Vietnam) Co., Ltd. has been rooted in Bac Giang Province, Vietnam, since 2019, focusing on providing high-quality products to the global market. With rapidly growing ma...
    18 Mar 2025
  • ZOZEN Boiler: Driving a Green Energy Future with 2025 Strategic Innovation Outlook
    In the context of the global energy transition and the ongoing advancement of carbon neutrality goals, ZOZEN Boiler’s R&D team achieved multiple industry breakthroughs in 2024. With systematic technological upgrades, the company is laying a solid foundation for high-quality development in 2025. As a leading enterprise in the industrial boiler sector, ZOZEN Boiler is showcasing the strength of Chinese manufacturing to the world through continuous innovation and product advancements. &n...
    11 Mar 2025

Find the Right Boiler For You

Name *

Email *

WhatsApp/WeChat

Products

Power/Capacity