In industrial dust removal systems, фильтр-мешки are the core components for collecting dust, and their materials directly affect filtration efficiency, equipment life and operating costs. Depending on the use environment, it is crucial to choose the right filter bag material. This article will analyze the characteristics and applicable scenarios of common filter bag materials to help you find the best choice.

 

1. Common filter bag materials and their characteristics
Polyester
Features: Temperature resistance range is below 150℃, weak chemical corrosion resistance, but cost-effective, suitable for normal temperature conditions.
Applicable scenarios: cement plants, general industrial dust filtration.

 

PPS (polyphenylene sulfide)
Features: High temperature resistance (up to 190℃), oxidation resistance, strong acid and alkali corrosion resistance, and can maintain stable performance in humid environments
Applicable scenarios: coal-fired power plants, waste incineration plants and other places with more sulfur-containing flue gas

 

PTFE (polytetrafluoroethylene)
Features: Temperature resistance up to 260℃, almost immune to all chemicals, with extremely high filtration efficiency and life, but high cost.
Applicable scenarios: highly corrosive or high-temperature working conditions such as chemical plants and smelters.

 

Acrylic
Features: moderate temperature resistance (about 120-150℃), good moisture resistance and acid resistance.
Applicable scenarios: dust treatment in food processing and pharmaceutical industries.

 

Fiberglass
Features: excellent high-temperature resistance (about 280℃), but poor bending resistance, requiring special protection to prevent damage.
Applicable scenarios: metal smelting, high-temperature kilns and other environments.

2. Key considerations for material selection
Working temperature
Each filter bag material has its temperature resistance limit. If used in an over-temperature environment for a long time, the filter bag will age quickly or even be damaged. For example, PTFE or fiberglass materials are recommended for high-temperature environments.

 

Chemical environment
The filter bag needs to adapt to the chemical substances in the flue gas components, such as acidic gases, alkaline substances or organic solvents. PPS and PTFE perform well in acid and alkali corrosion environments.

 

Dust characteristics
If the dust particles are coarse or abrasive, a material with high wear resistance, such as glass fiber, should be selected.
If the dust is fine and requires high filtration efficiency, a coated filter bag, such as PTFE membrane, can be selected.

 

Economic cost
For companies with limited budgets, polyester filter bags can be selected, but their limitations in harsh environments need to be considered.

 

3. Material recommendations for different industrial fields
Power industry
Mostly high temperature and high sulfur environments, PPS filter bags or glass fiber filter bags are recommended to ensure durability and acid tolerance after desulfurization.

 

Cement industry
Dust particles are coarse and high temperatures are frequent. Glass fiber or coated glass fiber filter bags should be selected to cope with wear and high temperature challenges.

 

Chemical industry
When corrosive gases need to be handled, PTFE filter bags are the best choice, with unmatched chemical resistance and anti-pollution capabilities.

 

Food and pharmaceuticals
The environment requires cleanliness, and acrylic or polyester coated filter bags can be selected to ensure efficient filtration while reducing pollution risks.

 

4. Technical support and maintenance suggestions for material selection
Supplier selection: Cooperate with professional dust removal equipment manufacturers to obtain material matching suggestions.
Regular inspection and maintenance: Even if high-quality filter bags are selected, they need to be cleaned and inspected regularly to extend the service life.
Data monitoring: Monitor the pressure difference through equipment to promptly determine whether the filter bag performance has declined, thereby avoiding system failure.

 

Заключение
Выбор dust dust collector filter bag materials is directly related to the efficiency and cost of industrial dust removal. When selecting, factors such as temperature, chemical environment, dust characteristics and budget should be comprehensively considered to ensure scientific material selection and efficient use. Reasonable filter bag selection can not only save operating costs for enterprises, but also improve environmental protection compliance capabilities and contribute to green development.