Key Points for Daily Maintenance of Anode and Cathode Rapping Hammers

Key Points for Daily Maintenance of Anode and Cathode Rapping Hammers

1. Regular Inspection: Every 3 months, open the dust collector maintenance door to check the wear of the hammer head, the firmness of the connection between the hammer body and the rapping shaft, and whether the anvil iron is displaced. Address any issues promptly.

2. Cleaning and Lubrication: Remove dust accumulation on the surface of the hammer body and rapping shaft. Apply high-temperature grease (suitable for environments of 80-150°C inside the dust collector) to the mating parts of the bushing and rapping shaft to reduce wear.

3. Balance Adjustment: If the rapping shaft exhibits significant vibration, check whether the installation positions of the rapping hammers are symmetrical. Adjust the distribution of the hammer bodies if necessary to ensure shaft balance.

4. Spare Parts Replacement: Spare parts such as hammer heads, keys, and bushings must match the original model. During replacement, ensure the hammer head is aligned with the anvil iron (deviation ≤ 2mm) to avoid damage caused by misalignment.

Application Scenarios and Special Designs The design of the cathode (anode) rapping hammer must adapt to the dust characteristics of different industries. Common special designs include: • High-Temperature Conditions: For high-temperature flue gas (200-300°C) in the steel and cement industries, rapping hammers are made of heat-resistant steel (e.g., 304 stainless steel, 1Cr18Ni9Ti) to avoid deformation and failure under high temperatures. • High-Corrosion Conditions: For corrosive flue gas in the chemical and waste incineration industries, rapping hammers are made of corrosion-resistant materials (e.g., Hastelloy alloy, fiberglass) or undergo surface anti-corrosion treatment (e.g., galvanizing, powder coating). • Ultra-Fine Dust Conditions: For ultra-fine dust such as fly ash in the power industry, "high-frequency, low-force" rapping hammers (small mass, high frequency) are used to avoid excessive rapping causing secondary dust emission. Summary Although the cathode (anode) rapping hammer is a mechanical component, it is the core guarantee of the "dust cleaning efficiency" of electrostatic precipitators. Cathode rapping must balance "dust cleaning effectiveness" and "electrode wire protection," while anode rapping must ensure "sufficient force" and "uniform transmission." In practical applications, precise selection, standardized installation, and regular maintenance are required to ensure the long-term stable operation of the rapping hammer, thereby maintaining the high dust removal performance of the precipitator.