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What are the differences between dust removal bag coated and non coated?

In order to improve dust removal efficiency and adapt to different working conditions, two common types of dust removal bags have emerged in the market: coated dust removal bags and non coated dust removal bags. There are differences between the two in terms of materials, filtering efficiency, service life, and applicable scenarios.
1、 Different materials
Ordinary dust removal bags are usually made of fiber materials, such as polyester fibers, polyester fibers, etc. These fibers have excellent filtration performance and wear resistance, making them suitable for dust filtration under general operating conditions. However, the surface of ordinary dust removal bags does not have additional film coating treatment, so dust penetration or blockage may occur under some special working conditions.
In contrast, the coated dust removal bag has been improved on the basis of ordinary dust removal bags. The material surface is treated with film coating, usually using polytetrafluoroethylene (PTFE) or polypropylene film. The addition of a film coating layer makes the dust removal bag have better anti adhesion and corrosion resistance, suitable for working conditions with high temperatures, corrosive gases, or fine dust particles.
2、 Different filtration efficiency
The filtration efficiency of ordinary dust removal bags is usually between 80% and 90%, which is more suitable for the filtration capacity of general industrial dust. However, for some special working conditions of fine dust or harmful gases, the filtration efficiency of ordinary dust removal bags may not meet the requirements.
Due to the advantages of a membrane layer, the membrane covered dust removal bag performs better in terms of filtration efficiency. Its filtration efficiency is usually above 95%, and can even reach 99.9%. This enables the coated dust removal bag to more effectively filter small dust and harmful gases, ensuring the cleanliness and safety of the environment and workplace.
3、 Different service life
Due to the lack of a film covering layer, the surface of ordinary dust removal bags is easily blocked by dust particles, leading to the gradual loss of filtering function of the filter material. Therefore, the service life of ordinary dust removal bags is relatively short and requires frequent replacement.
And the coated dust removal bag has anti adhesion on the surface, which can effectively resist the adhesion of dust. This makes its service life longer than ordinary dust removal bags, reducing replacement frequency and maintenance costs.
4、 Different application scenarios
Due to differences in material and filtration efficiency, ordinary dust removal bags are mainly suitable for general dust filtration scenarios, such as industrial fields such as cement, steel, and mining. For industrial fields that require high filtration efficiency, as well as working conditions with high temperatures, corrosive gases, or fine dust, membrane coated dust removal bags are more suitable.
5、 Different costs
Due to its simple material and low production cost, ordinary dust removal bags are relatively inexpensive and suitable for general dust removal projects with limited budgets.
However, due to the processing of film coating and the use of high-performance materials, the cost of film coated dust removal bags is relatively high. Therefore, in some industrial fields that require high filtration efficiency, the use of membrane covered dust removal bags requires a thorough balance between cost and performance.

Pub Time : 2023-09-14 11:21:00 >> News list
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ZHEJIANG GRACE ENVIROTECH CO., LTD

Contact Person: Miss. Doreen Zou

Tel: 0086 135 8806 5995

Fax: 86-571-86073956

ZHEJIANG GRACE ENVIROTECH CO., LTD
No. 100 Sunjiali, Ling Jiawu Industrial Zone, Wenyan, Xiaoshan, Hangzhou,China
Tel: 86-571-86058862-8008
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