Cause Analysis:
1. Filter bag clogging: Excessive dust accumulation on the surface of the filter bag leads to a decrease in its air permeability. This may be due to a malfunction in the cleaning system or the high adhesiveness of the dust.
2. Filter bag damage: Prolonged use of the filter bag, material aging, external damage, or improper installation may cause damage to the filter bag, allowing dust-laden air to pass through without filtration, thus reducing airflow.
3. Cleaning system issues: An improper cleaning cycle setting or insufficient cleaning pressure can result in dust buildup on the filter bag not being effectively removed, impacting airflow.
4. Duct blockage: Dust accumulation inside the duct or poor design increases airflow resistance, causing a decrease in airflow.
5. System leakage: Poor sealing in parts such as the dust collector body, ducting, or valves leads to air leakage, resulting in airflow loss.
6. Fan malfunction: Declining fan performance, such as impeller wear, deformation, or motor failure, results in insufficient airflow and static pressure.
Solutions:
1. Clean the filter bags: Regularly clean the dust accumulation on the filter bags, check for damage, and replace them as needed.
2. Optimize the cleaning system: Adjust the cleaning cycle and cleaning pressure to ensure effective dust removal from the filter bags.
3. Clean the ducting: Regularly inspect and clean the dust from inside the ducts to ensure unimpeded airflow.
4. Inspect and repair leakage points: Conduct a thorough inspection of the dust collector body, ducting, and valves, repair any leakage points, and improve system sealing.
5. Repair or replace the fan: Perform maintenance on the fan, inspect the impeller and motor for proper operation, and repair or replace any faulty components promptly.
6. Adjust design or selection: For newly installed dust collectors, if the airflow decline issue persists, it may be necessary to reassess the design or selection to ensure the dust collector meets production requirements.
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