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Anti-Static Needle-Punched Felt Filter Bags for Dust Collection
Meets anti-static requirements for normal, medium, and high-temperature operating conditions.
- Prevents static electricity buildup, improving safety.
- Reduces dust adsorption, improving dust removal efficiency.
- Extends filter bag lifespan.
- Improves dust removal efficiency.
- Adapts to complex operating environments.
Description
Filmedia® antistatic filter bags can continuously and evenly conduct away static charges, fundamentally reducing the risk of industrial dust explosions and safeguarding your safe production.
Main Application Industries
In industrial production processes, when dust concentration reaches a certain level (i.e., the explosion limit), it can easily ignite into combustion or even an explosion if exposed to electrostatic discharge sparks, mechanical sparks, or other ignition sources. Especially in industries involving flour, coal dust, chemical powders, wood flour, and metal dust, electrostatic control has become a crucial aspect of dust collection system design. Therefore, for operating conditions with potentially explosive dust, dust collector filter bags must possess reliable antistatic properties.
Coal and Energy Industry
- Pulverized Coal Preparation Systems
- Coal-fired Boilers
- Thermal Power Plants
Grain Processing Industry
- Flour Mills|
- Grain Processing Plants
- Feed Production Plants
Chemical Industry
- Plastic Powder Production
- Chemical Raw Material Processing
- Dye and Pigment Production
Wood Processing Industry
- Wood Flour Collection
- Furniture Manufacturing
- Wood Cutting and Polishing
Metal Processing Industry
- Aluminum Powder Collection
- Magnesium Powder Collection
- Metal Polishing and Dust Removal
Food Industry
- Starch Production
- Sugar Powder Processing
- Milk Powder Production
Antistatic Working Principle
During dust filtration, dust particles constantly rub against the filter media surface, generating a large amount of static charge. Antistatic filter bags establish a conductive network inside the filter media, rapidly discharging the accumulated static electricity to the grounding system, preventing the static charge from accumulating to dangerous levels, and thus effectively preventing electrostatic discharge.
Antistatic Filter Media
High cost-effectiveness, high tensile strength, suitable for dry conditions at normal temperature (<130℃).
Excellent hydrolysis resistance and acid/alkali resistance, suitable for dust removal environments with medium temperature (<140℃) and some moisture and acid/alkali corrosion.
Excellent high-temperature resistance (long-term 204℃, instantaneous 240℃) and abrasion resistance, suitable for complex working conditions involving high temperature, flammability, and explosiveness.
Mainstream Antistatic Processes
| Process Type | Technical Approach | Performance Characteristics | Cost & Value |
| Conductive Scrim Weaving | Conductive yarns (carbon, stainless steel, or bi-component conductive yarns) are woven into the warp of the scrim during needle felt production. | The conductive path is distributed in a grid pattern. The conductive effect and uniformity are average. | Low cost, suitable for conventional projects with standard explosion-proof requirements. |
| Stainless Steel Fiber Blending | Stainless steel fibers are uniformly blended with conventional chemical fibers into the face layer at a specific ratio (typically $\le$ 8%) before needle punching. | Forms an extremely dense and uniform conductive network. Offers the best performance, excellent wear resistance, and the longest lifespan. | Highest price, making it the premium choice for high-end industrial explosion-proofing. |
| Carbon / Bi-Component Fiber Blending | Carbon fibers or other bi-component conductive fibers are blended with conventional fibers into the face layer at a specific ratio (typically $\le$ 8%). | Delivers stable and uniform conductivity. The anti-static performance sits between the first two methods. | Highly cost-effective with wide market adoption. |