Detailed explanation of dust removal equipment accessories | Introduction to the complete set of supporting accessories for dust removal bags, skeletons, and pulse solenoid valves
Jun 09,2026
The long-term stable and standard operation of industrial dust removal equipment relies on the collaborative work of a complete set of supporting accessories. The performance degradation, excessive emissions, and increased failure rate of dust removal hosts are mostly due to aging of core components, mismatched selection, or wear and tear. The entire dust removal accessory system mainly includes filter accessories, support accessories, dust cleaning pneumatic accessories, dust discharge sealing accessories, and general accessories.
1、 Core filtration accessories: Dust bag
Dust bag is the core filtering element of bag filter, which directly determines the dust removal efficiency and emission indicators, and is also the main vulnerable part of the equipment. Different material filter bags are suitable for different temperature, humidity, and corrosive flue gas conditions.
Mainstream material classification and adaptation
Room temperature polyester filter bag is suitable for dry dust scenarios below 130 ℃, with strong versatility and high cost-effectiveness; Anti static polyester filter bags are specifically used for flammable and explosive working conditions such as sawdust, starch, and metal powder; PPS filter bag is resistant to acid and alkali, hydrolysis, and suitable for humid and desulfurized flue gas; PTFE coated filter material has high precision, non stick ash, and can meet ultra-low emission requirements; Fiberglass filter bags are suitable for high-temperature furnace flue gas conditions ranging from 260 ℃ to 280 ℃.
According to on-site requirements, filter bags can be treated with waterproof, oil resistant, anti-corrosion, wear-resistant reinforcement, and thickened sewing processes, suitable for complex working conditions such as high negative pressure, high wear, and high corrosion.
2、 Supporting accessories: dust removal skeleton (bag cage)
The dust removal skeleton is a specialized support structure for filter bags, which is used to prevent the filter bags from collapsing, deforming, and sticking during negative pressure operation, ensuring the ventilation area and uniform dust removal effect of the filter bags. It is a key accessory to extend the service life of the filter bags.
The conventional structure includes circular, elliptical, star shaped, and multi section skeletons, which are suitable for different equipment flower board apertures and box structures. Surface treatment is divided into galvanizing, spray coating, silicon spray coating, and stainless steel materials, which can effectively prevent rust and corrosion, and are suitable for humid and corrosive smoke environments.
The compliant skeleton welding points are smooth and free of burrs, which can avoid long-term friction and scratching of the filter bag, and reduce the equipment failure rate.
3、 Core accessories for dust cleaning: pulse solenoid valve
The pulse solenoid valve is the pneumatic core component of the pulse cleaning system, responsible for instantly releasing high-pressure airflow to complete the filter bag blowing and cleaning operation, directly affecting the cleaning efficiency and equipment operation resistance.
The mainstream market is divided into two types: submerged and right angle. Submerged valve body has fast exhaust speed and low pressure loss, suitable for large bag filters; Right angle type suitable for small and medium-sized dust removal equipment, easy to install and highly versatile.
The electromagnetic valve, when used in conjunction with a pulse controller, can automatically adjust the blowing cycle and duration, achieving fully automatic cyclic dust cleaning, avoiding filter bag clogging, and maintaining stable air flow and dust removal performance of the equipment.
4、 Accessories for supporting ash cleaning system
In addition to solenoid valves, the complete dust cleaning system also includes auxiliary components such as pulse controllers, gas storage tanks, spray pipes, and joint pipelines. As an intelligent control terminal, the pulse controller supports programmable adjustment and is suitable for 24-hour continuous production conditions; The air bag and spray pipe are responsible for stabilizing and evenly conveying high-pressure airflow, ensuring that each row of filter bags is cleaned evenly, and preventing local dust accumulation and high pressure difference problems.
5、 Ash unloading and sealing accessories
This type of accessory ensures the sealing and ash discharge stability of the equipment, avoiding air leakage, dust running, and secondary dust. It mainly includes filter bag sealing rings, maintenance door sealing strips, star shaped unloaders, double-layer flap valves, cylinders, etc.
Aging of sealing components is a common cause of equipment air leakage and excessive emissions. Regular replacement of sealing accessories can effectively improve the overall operational stability of the machine; The unloading accessories are responsible for the closed discharge of ash in the ash hopper, ensuring continuous ash transportation and no dust leakage.
6、 Universal auxiliary dust removal accessories
Universal accessories are suitable for the vast majority of dust removal equipment and are essential for daily operation and maintenance, including differential pressure sensors, level gauges, fan soft connections, insulation cotton, filter gaskets, dust removal nozzles, insulation accessories, etc. The pressure differential sensor monitors the resistance of the equipment in real time and provides feedback on the blockage status of the filter bag; The level gauge can monitor the height of ash accumulation in the ash hopper to prevent overloading and blockage of the machine.
7、 Principles of accessory selection and replacement
1. Priority for working condition matching: Corresponding materials and process accessories must be selected for high temperature, high humidity, corrosion, and explosion-proof working conditions to avoid rapid loss and failure.
2. Unified parameter adaptation: Replacement parts need to match the original equipment size, pressure resistance, temperature resistance, and installation parameters to ensure compatibility.
3. Regular maintenance and replacement: Filter bags, seals, and solenoid valve membranes are high-frequency vulnerable parts. Periodic replacement can stabilize the dust removal effect of the equipment and avoid the risk of excessive emissions.
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