In industrial scenarios such as chemical, food processing, and building materials, the treatment of high humidity flue gas (humidity>60%) often faces challenges such as condensation and dust adhesion blockage. The filter material of traditional dust removal equipment is prone to dust agglomeration due to water vapor adsorption, which can lead to a surge in system resistance, a sudden drop in dust removal efficiency, and even equipment shutdown. The plastic fired plate dust collector, with its special design of filter material and structure, can effectively avoid such problems under high humidity conditions and has become one of the technical solutions suitable for this scenario. Its core value lies in targeted technical optimization for high humidity environments.

1、 Core technology logic: Why can condensation blockage be cracked?
The adaptability of the plastic fired plate dust collector to high humidity conditions is essentially a precise response to the interaction between water vapor and dust based on the characteristics of the filter material and structural design, without additional redundant functions, focusing only on solving core pain points.

1. Hydrophobic characteristics of filter material: reduce water vapor adsorption from the source
The core filter element adopts polymer composite plastic fired plate, which has undergone hydrophobic modification treatment on its surface. The water contact angle is greater than 110 °, making it difficult for water vapor to adhere to the surface of the filter material and form a water film. Compared to the fiber structure of traditional filter bags, the rigid porous structure of plastic fired plates does not have the characteristic of "fiber gap water storage". Even if there is condensed water in the flue gas, it will quickly slide down along the surface of the filter material to the ash hopper, avoiding the formation of adhesives with dust.

2. Rigid structure design: avoid dust agglomeration and blockage
The plastic fired plate is a rigid filter material that will not soften or deform due to water vapor infiltration. The uniform micropores (pore size 5-20 μ m) inside the filter material remain transparent at all times. The dust layer structure formed by high humidity dust on the surface of the filter material is loose and will not be compacted due to deformation of the filter material. It can be easily peeled off during the subsequent cleaning process, fundamentally solving the problem of "dust agglomeration blocking micropores" in traditional flexible filter bags.

3. Efficient dust cleaning system: compatible with adhesive dust stripping
In response to the mild adhesion characteristics of high humidity dust, the plastic fired plate dust collector adopts a cleaning mode of "pulse spraying+rigid filter material resonance". When the jet airflow acts on the plastic fired plate, the filter material itself generates high-frequency micro vibrations. Combined with the impact force of the airflow, it can completely peel off the loose dust layer on the surface without damaging the structure of the filter material. The cleaning efficiency remains stable, and there is no need to frequently increase the cleaning strength.

2、 Analysis of applicable scenarios for high humidity working conditions
The adaptability of the plastic fired plate dust collector strictly corresponds to the characteristics of high humidity flue gas, and is mainly suitable for the following typical scenarios. Its application value needs to be comprehensively judged based on the working condition parameters:

1. Chemical industry: Acid alkali wet process flue gas treatment
The flue gas generated by acid-base neutralization and wet washing processes in the chemical industry often has a humidity of 70% -95% and contains corrosive dust. The polymer material of the plastic fired board is resistant to acid and alkali corrosion (can withstand smoke with pH 2-12), and its hydrophobic properties prevent condensation, making it suitable for smoke purification in workshops such as pesticide and dye production.

2. Food industry: dust treatment in steaming and drying processes
Cooking and drying processes (such as spray drying of dairy products and confectionery boiling) in food factories will produce high moisture fine powder with humidity>80% and the dust is sticky. The plastic fired plate dust collector can avoid dust adhesion and blockage, and the filter material meets food grade hygiene requirements, which will not contaminate the product and is suitable for the clean treatment needs of such scenarios.

3. Building materials industry: Wet flue gas treatment after desulfurization
After the wet desulfurization process in cement and ceramic tile production, the flue gas humidity can reach over 90% and contains gypsum dust. The rigid structure and hydrophobic properties of the plastic fired board can effectively handle such high humidity and viscous dust, avoiding the frequent blockage of traditional filter bags and the need for shutdown and replacement.

4. High humidity climate region: Southeast Asia/South America industrial scene
Southeast Asia, South America and other regions have high humidity throughout the year (environmental humidity>75%), and even normal temperature smoke is prone to condensation due to environmental factors. The plastic fired plate dust collector can operate stably without the need for additional complex dehumidification systems, and is suitable for the industrial dust removal needs of such regions.

3、 Key operational guarantee: key technical adaptation points under high humidity conditions
To ensure long-term stable operation in high humidity environments, the plastic fired plate dust collector needs to pay attention to the following technical supporting facilities, which have no marketing attributes and are only necessary conditions for adapting to working conditions:

1. Selection and adaptation of filter materials
Select the corresponding plastic fired board material based on the degree of corrosiveness of the flue gas: polypropylene plastic fired board is selected for ordinary high humidity non corrosive scenarios; Choose polytetrafluoroethylene (PTFE) composite plastic fired plate for scenarios involving acid and alkali corrosion to avoid filter material failure due to corrosion.

2. Anti accumulation and blockage design of ash hopper
The ash hopper adopts a conical structure with a tilt angle of ≥ 60 °, and the inner wall is smooth without dead corners. In some scenarios, low-speed mixing devices or heat tracing modules can be installed (in low temperature and high humidity environments) to prevent wet dust from clumping and accumulating at the bottom of the ash hopper, ensuring smooth ash discharge.

3. System sealing and temperature difference control
The equipment casing adopts a fully sealed design with a sealing level of ≥ IP65 to prevent secondary condensation caused by the infiltration of humid air from the outside; If the flue gas temperature is close to the dew point, a simple temperature control device should be installed at the inlet to ensure that the flue gas temperature is 5-8 ℃ higher than the dew point and reduce the generation of condensation water.

4、 Operation and maintenance core: Basic guarantee measures in high humidity environments
The operation and maintenance of the plastic fired plate dust collector under high humidity conditions do not require complex operations, only focusing on the following points to ensure equipment stability:
Regularly check whether there is abnormal adhesion on the surface of the filter material. If there is local scaling, high-pressure air (0.4-0.6MPa) can be used for reverse blowing and cleaning without disassembly;
Check the operation status of the ash hopper discharge valve every month to ensure that there are no blockages and to avoid the increase in system resistance caused by the accumulation of wet dust;
For high humidity flue gas containing corrosive components, the surface corrosion of the plastic fired board should be tested quarterly, and aging filter materials should be replaced in a timely manner to avoid dust leakage.

The adaptation of plastic fired plate dust collectors to high humidity conditions is based on the targeted solution of "filter material hydrophobic+rigid structure" to the pain points of condensation blockage. There is no exaggerated promotion, only a matching solution based on technical characteristics. It is not the only choice for high humidity conditions, but its characteristics of not requiring complex auxiliary systems, stable operation, and easy maintenance make it one of the practical technical solutions in this scenario. Whether it is applicable or not needs to be comprehensively evaluated based on specific flue gas parameters and dust characteristics.