Plastic fired board dust collector resistant to moisture and blockage: chemical high humidity scenarios
Sep 17,2025
The reaction kettle, distillation, and washing sections in the chemical industry often produce high humidity flue gas containing acid and alkali. Traditional bag filters are prone to moisture absorption, clumping, corrosion, and damage to the filter bags, resulting in the need to shut down and replace bags within 1-2 months. This not only increases operational costs, but may also result in environmental fines due to excessive dust leakage. The plastic fired plate dust collector, with its core characteristics of "moisture resistance, blockage resistance, corrosion resistance, and durability", has become the preferred choice for dust removal in high humidity chemical scenarios, especially suitable for overseas chemical enterprises' requirements for compliance standards such as EU CE and US EPA.
1、 Moisture resistant and anti blocking core technology: solving high humidity problems from material to structure
The anti moisture blocking ability of the plastic fired plate dust collector is derived from the dual design of "polymer material+rigid structure", which avoids the blocking hazards caused by high humidity flue gas from the root:
1. Hydrophobic material: Water vapor does not adhere, dust is easy to peel off
The core filter element "plastic fired board" is made of polymer composite resin material, and the surface is treated with PTFE hydrophobic coating. The water contact angle is above 110 °, and the water vapor in high humidity flue gas will not condense on the board surface, nor will it mix with dust to form "mud lumps". Even when dealing with chemical flue gas containing saturated water vapor, the surface of the plastic fired board remains dry, and dust only adheres in the form of a "loose layer", laying the foundation for subsequent dust removal.
2. Rigid microporous structure: no deformation, no blockage
Unlike the flexible fiber structure of cloth bags, the plastic fired board has a rigid microporous structure with uniform pore size and high porosity. Under high humidity conditions, the pore size will not shrink due to moisture absorption and expansion, nor will it deform and block the channel due to dust compression; At the same time, the rigid structure can withstand stronger pulse blowing pressure, and dust is prone to fall off from the surface during dust cleaning, without leaving any residual "bag sticking" phenomenon. The equipment resistance remains stable at 800-1200Pa for a long time, which is 30% lower than traditional bag filters.
3. Anti corrosion design: to deal with chemical acid and alkali flue gas
For the corrosive components such as SO ₂ and Cl ⁻ in chemical flue gas, the plastic fired plate body is made of acid and alkali resistant resin, the dust collector shell can be made of 316L stainless steel or FRP fiberglass material, and the sealing element is made of PTFE corrosion-resistant material. Even in acidic and alkaline flue gas with a pH value of 2-12, the equipment can still operate stably for 3-5 years, which is twice as long as the lifespan of ordinary carbon steel shell bag filters.
2、 Chemical industry scenario: meeting production needs, reducing costs and complying with regulations
1. Continuous operation without stopping, suitable for 24-hour chemical production
Most chemical enterprises operate continuously, and traditional bag filters require monthly maintenance due to clogged filter bags, resulting in losses of over $10000 per shutdown. The plastic fired plate dust collector thoroughly cleans the dust and has a long filter life, which can achieve 365 days of continuous operation, reducing downtime and maintenance time by more than 100 hours per year, directly reducing production losses.
2. Meet low emission standards and comply with global environmental standards
The microporous filtration accuracy of the plastic fired board reaches 99.9%, and the removal rate of chemical fine dust above 0.1 μ m is stable. The emission concentration is ≤ 5mg/m ³, and it easily passes standards such as EU EN 13285 and US EPA Title V.
Summary: "Dust removal and calming pill" for high humidity chemical scenes
For overseas chemical enterprises, the "moisture resistance and blockage resistance" of plastic fired board dust collectors is not a technical gimmick, but a core capability to solve production pain points and ensure compliance. It not only avoids the trouble of frequent maintenance of traditional dust collectors, but also stably meets strict global environmental standards. At the same time, it reduces long-term operating costs through long-life and low-energy design, making it the "preferred dust removal solution" for high humidity chemical scenarios. Under the trend of "environmental upgrading+cost reduction and efficiency improvement" in the global chemical industry, plastic fired plate dust collectors are undoubtedly competitive products in the field of foreign trade chemical environmental protection.
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