Precautions for shutdown and maintenance of environmentally friendly lime kiln equipment
Regular shutdown and maintenance of environmentally friendly lime kiln equipment is an important step in ensuring long-term stable operation. Reasonable maintenance can not only extend the service life of equipment, but also maintain its environmental performance standards. Mastering the correct precautions for shutdown and maintenance of environmentally friendly lime kiln equipment is crucial for production enterprises.
A detailed maintenance plan should be developed before shutdown, and it is generally recommended to schedule a comprehensive overhaul every 6-8 months of operation. Focus on inspecting the wear of refractory materials in the kiln body, and replace sections with a thickness less than 50% of the original design in a timely manner. The dust removal system is a key environmental protection equipment. When the filter bag of the bag filter is used for more than 8000 hours or the resistance exceeds 1500Pa, it needs to be replaced as a whole. The transmission device needs to check the gear mesh clearance, replace the lubricating grease every quarter, and repair the bearings if the temperature exceeds 75 ℃.
The maintenance of the heat exchange system cannot be ignored, and attention should be paid to protecting the walls of the heat exchange tubes when cleaning the accumulated ash in the preheater. The burner nozzle needs to be disassembled and cleaned to ensure that the spray hole is not blocked. The electrical system needs to detect the sensitivity of various sensors and calibrate key parameter instruments such as temperature and pressure. The outer surface of the equipment should be thoroughly derusted and repainted with high-temperature resistant paint, which can effectively prevent corrosion of the steel structure.
The implementation effect of shutdown maintenance precautions for environmental protection lime kiln equipment directly affects the subsequent operation status. Standardized maintenance can reduce the failure rate by over 30% while ensuring continuous compliance with emission standards. Establish a comprehensive maintenance file to record the content of each maintenance and replacement of parts, providing data support for equipment management. Adhere to the concept of preventive maintenance in order to maximize the economic and environmental benefits of environmentally friendly lime kilns.
