Case Study: Application of Self-Cleaning Air Filters in a Blast Furnace Blower Station Project at a Steel Plant

In the harsh conditions of high temperature and dust in the steel and metallurgical industry, blowers, as key equipment in blast furnace operation, directly affect production efficiency and safety through stable operation. 

In a 3×2060m³ blast furnace project of a steel company in Guangxi, all five sets of electric blower units were 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: Key Parameters Fitting the Operating Conditions

This self-cleaning air filter is specifically designed for the blast furnace blower requirements of large blast furnaces. Its core parameters meet the requirements of industrial scenarios:

01. Rated air volume of 13000 Nm³/min, matching the high air volume requirements of large blowers and ensuring continuous and stable air supply.

02. Filter area covering 18900 square meters, combined with high-quality imported HV filter media from the United States, balancing filtration efficiency and service life.

03 Its core function is to effectively intercept impurities and prevent dust from entering the fan from the source, which helps reduce equipment wear and the risk of failure.

Three Core Technologies: Achieving High-Efficiency Industrial Filtration

01 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.

02 Automatic Backflushing Cleaning: Automated Operation for Continuous Work

◆ Relying on 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.

03 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 operating status of the filtration system.

◆An alarm is automatically triggered when there is abnormal pressure difference, which promptly prompts maintenance needs and avoids production disruptions due to filter failure.

Application Value: Multiple Advantages for Industrial Scenarios

In a blast furnace blast station at a steel company, the self-cleaning air filter achieved excellent results:

01. Protects core equipment, reduces downtime and maintenance caused by dust wear on the blowers, and helps improve production continuity.

02. Reduces manual maintenance costs; automatic cleaning and dust removal functions reduce on-site operations, aligning with the trend of industrial automation.

03. Stable filtration effect; maintains effective air supply quality in the dusty environment of the metallurgical industry, supporting stable blast furnace operation.

Extended Application Scenarios: Beyond the Steel Industry

In addition to blast furnace blast stations in the metallurgical industry, this self-cleaning air filter is also suitable for:

01. Blower stations in the chemical and power industries, meeting the clean air supply needs of different industrial scenarios.

02. Pre-filtering for dehumidification devices with high air cleanliness requirements, forming a dual guarantee of "filtration + dehumidification".

03. Large-scale industrial projects that focus on reducing maintenance costs and improving system stability; suitable for high air volume and high dust conditions.

In industrial production, equipment protection begins with the details. 

A self-cleaning air filter, with its optimized parameter configuration and intelligent core technology, achieved the goal of "effective filtration + convenient maintenance" in a steel blast furnace project. 

Whether in large-scale metallurgical projects or various industrial blower scenarios, this filter's reliable performance demonstrates the importance of "dust control at the source," ensuring the stable operation of industrial equipment.

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