Common Abnormalities and Solutions for Cartridge Dust Collectors
Issue: High-Temperature Particle Burn-Through
Impact:
Dust can directly enter the exhaust system through the damaged areas, leading to a significant increase in emission concentration, making it impossible to meet environmental discharge standards. This negatively impacts the entire dust collection system and production.
Cause Analysis:
1. Direct Contact of High-Temperature Particles With The Filter Element:
When high-temperature particles directly contact the surface of the filter element, they rapidly transfer heat to the filter element material. If the material's heat resistance is insufficient, it can cause thermal damage to the surface or internal structure of the filter element, potentially leading to burn-through.
2. Insufficient Heat Resistance of The Filter Element Material:
The heat resistance of the filter element depends largely on its material. Some common materials, such as polyester fibers, have low heat resistance, typically below 130°C. If the filter element material cannot withstand the high temperatures caused by hot particles, burn-through is likely to occur.
3. Thermal Stress in High-Temperature Environments:
In high-temperature environments, temperature gradients within the filter element can cause thermal stress. This stress can lead to deformation or rupture of the filter element material.
4. Chemical Reactions with High-Temperature Particles:
Certain high-temperature particles may chemically react with the filter element material, reducing the material's strength and stability, which increases the risk of burn-through.
Measures to Take:
1. Choose High-Temperature Resistant Filter Element Materials:
Select filter element materials with better heat resistance based on the specific operating conditions.
2. Pre-Cooling Treatment:
For high-temperature dust, implement pre-cooling treatments to reduce the dust temperature and minimize the direct impact of hot particles on the filter element.
3. Enhance Filter Element Protection Measures:
Install protective devices, such as metal screens or shields, at the filter element inlet to block high-temperature particles from directly entering the filter element.
4. Regular Inspection and Maintenance:
Perform regular inspections of the filter element’s condition, promptly identifying and replacing damaged filter elements to prevent high-temperature particles from entering the dust collector.
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