What are the dust removal accessories? Thoroughly analyze the core components and functions
Aug 08,2025
In industrial dust removal systems, in addition to the main equipment, various dust removal accessories are the "capillaries" that ensure efficient operation. From dust cleaning to filtration, from control to sealing, each type of accessory has its irreplaceable role. For foreign trade business, understanding the types and adaptability of these accessories can help enterprises accurately match the needs of different markets and ensure the stability and compliance of dust removal systems.
1、 Cleaning system accessories: key to ensuring the cleanliness of filter media
The dust cleaning system is the "cleaning power source" of dust removal equipment, and its core components include:
Pulse valve: It achieves filter bag cleaning by instantly releasing compressed air, and is divided into two types: electromagnetic pulse valve and pneumatic pulse valve. The response time of imported brands is ≤ 0.03 seconds, with a lifespan of over 1 million times, suitable for automated production lines in Europe and America; Domestic high-quality pulse valves have high cost-effectiveness and are suitable for budget sensitive markets such as Southeast Asia and South America.
Spray tube and Venturi tube: evenly distribute the airflow of the pulse valve to the filter bag to avoid incomplete cleaning of local dust. The material needs to match the working conditions: carbon steel for normal temperature, 304 stainless steel for high temperature, 316L stainless steel for corrosive environment, in compliance with the EU CE material certification.
Gas storage tank and pressure reducing valve: stabilize the gas source pressure to ensure even cleaning force. The European and American markets need to comply with ASME pressure vessel standards, while domestic and Southeast Asian regions mostly use GB/T 150 standards.
2、 Filter system accessories: the core that determines dust removal efficiency
The accessories of the filtration system directly affect the dust interception effect, mainly including:
Filter bag: Divided by material into polyester (room temperature), aramid (medium high temperature), PTFE (high temperature corrosion-resistant), suitable for different industries. The EU market requires filter bags to pass REACH environmental certification, while North America requires compliance with EPA biodegradable standards.
Filter cage (skeleton): supports the filter bag to prevent collapse, and the surface needs to be galvanized or sprayed to enhance corrosion resistance. Diameter error ≤ ± 1mm, verticality ≤ 3mm, to avoid scratching the filter bag, additional rust prevention treatment is required in high humidity Southeast Asia.
Filter bag sealing ring: Ensure that the filter bag is sealed with the flower plate. The silicone material is suitable for working conditions of ≤ 150 ℃, and the fluororubber is suitable for high temperatures of ≤ 200 ℃. It needs to pass the EU RoHS environmental protection testing to prevent dust leakage.
3、 Control system accessories: the "brain" that enables intelligent operation
The control system accessories are responsible for monitoring and regulating the dust removal system to operate as needed:
Differential pressure transmitter: Real time monitoring of the pressure difference before and after the filter bag, providing a basis for dust cleaning. It needs to support internationally recognized signals and be compatible with PLC systems from European and American factories, with an accuracy error of ≤± 1%.
PLC controller: receives sensor signals and controls dust cleaning and unloading actions. The European and American markets prefer modular design and support PROFINET bus protocol; Developing countries tend to prefer simplified controllers to reduce operational difficulty.
Dust concentration sensor: online monitoring of dust concentration at the discharge outlet, data can be uploaded in real-time to the regulatory platform. The EU market needs to comply with the EN 15267 standard, while the US needs to pass EPA certification with a measurement accuracy of ± 5% FS.
4、 Structural support accessories: the "skeleton" that ensures system stability
Although these accessories do not directly participate in dust removal, they determine the lifespan and safety of the equipment
Sealing gasket and flange: To prevent system air leakage, the flange interface needs to match the target market standards - ANSI flanges for North America, DIN flanges for Europe, and GB standards for Southeast Asia. The sealing gasket material should be compatible with the flue gas, such as graphite gasket for high-temperature flue gas.
Ash discharge valve and screw conveyor: discharge the dust collected by the ash hopper, divided into two types: electric and pneumatic. In industries where dust is prone to clumping, it is necessary to choose ash discharge valves with heating function to avoid blockage. Models that comply with ATEX explosion-proof standards can be used in flammable and explosive scenarios in Europe.
Inspection door and observation window: for easy equipment maintenance and internal observation, the sealing of the inspection door should reach IP65 protection level, and the glass of the observation window should be heat-resistant and suitable for high temperature working conditions such as steel and cement.
5、 Adaptation and Selection: Key Considerations in Foreign Trade Scenarios
There are significant differences in the requirements for accessories in different markets: the European and American markets focus on environmental certification (such as REACH, CE) and intelligence (supporting Industry 4.0 protocol); Southeast Asia and Africa are more concerned about cost and durability, and prioritize the selection of corrosion-resistant and easily replaceable accessories; Due to high temperature and dust in the Middle East, the accessories need to be sand proof and anti-aging.
Understanding the types and characteristics of dust removal accessories is the foundation for system selection and after-sales support in foreign trade business. Whether it's recommending suitable accessories for customers or stocking up on spare parts to shorten delivery cycles, precise matching of needs is essential to ensure stable operation of dust removal systems worldwide, safeguarding the environmental standards of enterprises.
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