In the harsh operating conditions of high temperature and dust in the steel metallurgical industry, blowers are key equipment for blast furnace operation, and their stable operation is directly related to production efficiency and safety. In the 3×2060m³ blast furnace project of a steel company in Guangxi, all five sets of electric blower units are equipped with self-cleaning air filters, installed before the inlet of the dehumidification device in the blower station. Through effective filtration, they provide comprehensive protection for the blower equipment, becoming a typical application of clean air supply in industry.
Core Project Configuration: This self-cleaning air filter is specifically designed for the blast furnace blower requirements of large blast furnaces, with core parameters meeting industrial application requirements:
1. Rated airflow capacity of 13000 Nm³/min, matching the high airflow demands of large blowers and ensuring continuous and stable air delivery.
2. Filter area covering 18900 square meters, using high-quality imported HV filter media from the USA, balancing filtration efficiency and service life.
3. Its core function is to effectively intercept impurities, preventing dust from entering the blower at the source, thus helping to reduce equipment wear and the risk of failure.
Three Core Technologies Enable High-Efficiency Industrial Filtration Operation
1. Three-Stage Filtration System: Step-by-Step Filtration for Effective Dust Control
◆ The pre-filter prioritizes intercepting large particles such as willow catkins and leaves, preventing coarse impurities from clogging subsequent filtration stages.
◆ Primary and secondary filter cotton effectively captures over 90% of dust, reducing the filtration load on the main filter cartridge and extending the service life of core components.
◆ The high-efficiency filter cartridge achieves 1-2μm level precision filtration, with an outlet air filtration efficiency of 99.99%, providing a clean air supply environment for the fan.
2. Automatic Backflushing Cleaning: Automated Operation and Continuous Working
◆ Utilizing PLC intelligent control, high-pressure airflow is periodically activated to backflush and clean the filter cartridge surface, reducing the need for manual operation.
◆ Cleaned dust automatically falls into the dust collection bin and is automatically discharged periodically, with a fully enclosed process, reducing maintenance workload.
3. Intelligent Monitoring System: Real-Time Monitoring and Timely Alerts
◆ 24-hour monitoring of key parameters such as differential pressure, temperature, and humidity dynamically monitors the filtration system's operating status.
◆An alarm is automatically triggered when there is abnormal pressure difference, which promptly prompts maintenance needs and avoids production disruptions due to filter failure.
The self-cleaning air filter demonstrates its application value and multiple advantages in adapting to industrial scenarios. In a blast furnace blast station at a steel company in Guangxi, its application has yielded excellent results:
1. It protects core equipment, reducing downtime and maintenance caused by dust wear on the blowers, thus contributing to improved production continuity.
2. It reduces manual maintenance costs; the automatic cleaning and dust removal functions reduce on-site operations, aligning with the trend of industrial automation.
3. It provides stable filtration performance, maintaining effective air supply quality in the dusty environment of the metallurgical industry, supporting stable blast furnace operation.
Extended Application Scenarios:
1. Blower stations in industries such as chemical and power, meeting the clean air supply needs of various industrial scenarios.
2. Pre-filtration for dehumidification devices with high air cleanliness requirements, forming a dual guarantee of "filtration + dehumidification".
3. Large-scale industrial projects that emphasize reducing maintenance costs and improving system stability, suitable for high air volume and high dust conditions.
