Dust Conveying in Blast Furnace Gas Dry Bag Filter

The ash conveying method in blast furnace gas dry pulse dust collectors can be categorized into mechanical conveying and pneumatic conveying, depending on the power of the conveying device.

The mechanical conveying method includes options such as screw conveyor and buried scraper conveyor. The basic process flow for mechanical conveying and pneumatic conveying is as follows:

Mechanical conveying method: Bag ash collecting hopper → Middle ash hopper → Screw conveyor or buried scraper conveyor → Bucket elevator → High ash warehouse → Humidifier → Car transportation.

Pneumatic conveying method: Bag ash collecting hopper → Pneumatic fluidized conveying → Large ash collecting bin suction and discharge → Truck transportation.

The pneumatic conveying method for blast furnace gas dust removal ash offers distinct advantages over the mechanical conveying method. It requires less investment and enables efficient transportation. It has a large conveying capacity, can cover long distances, allows flexible layout, and ensures good airtightness to prevent gas leakage and secondary dust during the ash unloading and conveying process. For large blast furnaces, pneumatic conveying is the preferred choice.

In modern steel factories, FMS filter bags are commonly used in blast furnaces. These filter bags have a longer working life and can typically last up to 3 years, providing efficient and reliable filtration. To replace your jet dust collector bags, vision filter will be the top choice.