In industrial dust removal and flue gas purification, the selection of filter cartridges directly affects filtration efficiency, operating costs, and equipment lifespan.

So, how do you choose the right filter cartridge based on working conditions? In which industries are filter cartridges widely used? Today, we will analyze this in detail!

01 | How to Choose the Right Filter Cartridge?

01Selection Based on Filtration Medium

Dust Characteristics:

Particle Size:

For ultra-fine dust (such as welding fumes), PTFE membrane filter cartridges should be selected; for ordinary dust, polyester fiber filter cartridges can be used.

Viscosity/Humidity:

For high-humidity, viscous dust (such as flour, starch), waterproof and oil-resistant filter cartridges should be selected.

Acidity/Alkalinity/Corrosiveness: In the chemical industry, acid and alkali-resistant filter cartridges (such as PTFE or special coated filter materials) should be selected.

Flammable and Explosive Dust: For dust such as aluminum powder and coal powder, anti-static filter cartridges should be selected.

02 Gas Characteristics

High-temperature flue gas (such as boilers, incinerators): Choose high-temperature resistant filter materials (such as P84, glass fiber membrane).

Oil mist-containing gas (such as machining centers): Choose oil-resistant filter cartridges.

02 Selection Based on Filter Material Type

✅ Polyester fiber filter cartridge – economical and practical, suitable for general dust (such as woodworking, food processing).

✅ PTFE membrane filter cartridge – high efficiency and low resistance, suitable for ultra-fine dust (such as pharmaceuticals, electronics industry).

✅ Anti-static filter cartridge – suitable for flammable and explosive dust (such as metal powder, coal powder).

✅ High-temperature resistant filter cartridge (P84/glass fiber) – suitable for high-temperature environments such as boilers and cement plants.

03 Selection Based on Structural Form

✅ Standard pleated filter cartridge: Increases filtration area and improves filtration efficiency.

✅ Quick-release filter cartridge: Facilitates maintenance and replacement, reducing downtime.

 ✅ Explosion-proof filter cartridges: Suitable for explosive environments such as chemical plants and coal dust.

04 Size and Installation Method Matching

Confirm the filter cartridge size (diameter, length, number of pleats) of the dust collector.

Select the correct installation method (flange type, chuck type, insert type).

02 | Typical Application Industries of Filter Cartridges

1. Metal Processing & Welding Industry

- Welding fumes: PTFE coated filter cartridges efficiently capture PM2.5 level fumes.

- Metal polishing dust: Anti-static filter cartridges prevent the risk of metal dust explosions.

2. Chemical & Pharmaceutical Industry

- API dust: Chemical-resistant filter cartridges, compliant with GMP standards.

- Pigment and dye dust: High-efficiency filtration to avoid cross-contamination.

3. Food & Feed Processing

- Flour and sugar powder collection: Waterproof and oil-proof filter cartridges prevent clogging.

- Feed dust control: Compliant with food-grade safety standards.

4. Building Materials & Cement Industry

- Cement plant dust: High-temperature and wear-resistant filter cartridges extend service life.

- Ceramic and fiberglass production: High-efficiency filtration of high-concentration dust.

5. Energy & Environmental Protection Industry

- Coal-fired power plants: High-temperature resistant filter cartridges for boiler flue gas treatment.

- Waste incineration: Corrosion-resistant filter cartridges to handle complex flue gas components.

04 | Filter Cartridge Use and Maintenance Suggestions

✅ Regular inspection: Check the filter cartridge pressure difference every 3-6 months; if it is too high, cleaning or replacement is required.

✅ Correct cleaning: Use pulse jet cleaning; the pressure should not be too high to avoid damage to the filter material.

✅ Storage conditions: Spare filter cartridges should be stored in a dry environment free from corrosive gases. 

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