A: At Filtearth, every fiber bed mist eliminator undergoes factory differential pressure testing under simulated process gas flow conditions. We measure the dry pressure drop and calculate the operating wet pressure drop based on liquid loading rates and gas velocity, ensuring optimal balance between continuous filtration efficiency (>99.9%) and overall fan energy consumption.

A: Mesh pad demisters rely on inertial impaction and are suitable for removing large droplets (> 5–10 microns). In contrast, Filtearth fiber bed mist eliminators utilize Brownian diffusion principles, allowing them to capture submicron aerosol particles (< 1 micron) with over 99.9% collection efficiency, making them ideal for high-efficiency sulfuric acid and chlor-alkali applications.

A: For aggressive chemical environments, Filtearth offers customized material configurations including Special Glass Fiber, PTFE, and Polypropylene (PP) filter media, supported by corrosion-resistant cages made of Stainless Steel 316L, 904L, Titanium Alloys, or FRP/PP structures.

A: High pressure drop is usually caused by solid particulate blinding, chemical scaling, or excessive liquid re-entrainment. Filtearth mitigates this by applying pre-filter stages for heavy dust, selecting optimized fiber packing densities, and offering washable/repackable filter element designs to extend service life.

A: Yes. Filtearth provides custom-engineered fiber bed candle filters designed to directly replace existing OEM units (including standard dimensions for sulfuric acid absorption towers and chlor-alkali gas scrubbers) without requiring vessel modifications.

A: Filtearth operates under an ISO 9001 certified quality management system. Every fiber bed mist eliminator element undergoes strict factory quality control, including dimension verification, structural pressure testing, and fiber packing density control to guarantee operational stability.

A: Since glass fiber and PTFE elements are precision filtration components, Filtearth packages each candle filter in reinforced, moisture-proof, export-standard wooden crates with internal shock-absorbing framing to prevent element deformation during long-distance transport.

A: Standard dimensional elements are typically ready for dispatch within 2 to 3 weeks. For complex, custom-engineered projects requiring specialty alloys (e.g., Titanium, 904L) or high-volume absorption tower retrofits, the lead time is usually 4 to 6 weeks.

A: Yes. Filtearth specializes in 1:1 direct dimensional and functional replacements for major OEM candle filters used in sulfuric acid plants, chlor-alkali units, and fertilizer production. Our engineering team can match exact outer diameters, tube lengths, mounting flanges, and pressure drop specs based on your drawings or site tags.

A: To provide an accurate design and quotation within 24 hours, we typically need:

1.Gas flow rate (m³/h or ACFM) and operating pressure/temperature.

2.Gas composition and liquid aerosol concentration.

3.Required allowable pressure drop (∆P).

4.Vessel dimensions or drawing of existing candle filters.

A: In standard non-fouling gas streams (such as clean sulfuric acid absorption towers), Filtearth candle filters typically achieve a service life of 3 to 5+ years. Service life is largely determined by gas cleanliness and upstream particulate control.

A: If the pressure drop increases due to soluble particulate buildup (such as salts in chlor-alkali or soluble aerosols), the elements can often be online water-washed or solvent-flushed. For insoluble scaling, Filtearth provides element re-bedding / repacking services to significantly reduce total cost of ownership compared to buying complete new cages.