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Dust on dirty tube sheets can make it difficult to isolate the source of dust leaks. Be sure to thoroughly clean tube sheets before doing black light testing.

Dust on dirty tube sheets can make it difficult to isolate the source of dust leaks. Be sure to thoroughly clean tube sheets before doing black light testing.

4 Mistakes That Produce High Pressure Drops in a Baghouse

A six page article on the use and benefits of high temperature membrane filter media at the Tuscaloosa Steel Corporation.

Learn about three developments that have reduced maintenance effort and cost at steel mills in Europe, Mexico, and the United States.

Gore’s filtration solutions keep you running longer, more efficiently and with greater particulate capture. Our filters are constructed using advanced materials, including expanded PTFE, a highly versatile material that is chemically inert, durable and resistant to extreme temperatures. These attributes make our filters reliable in harsh conditions, over time and when interacting with harmful chemicals.

Extraction at the furnace has increased above the design. The main fan damper is partially closed to control the extraction at the furnace. Tapping fume has been added into the same baghouse. The smelt house environment is much cooler, and it led to a decrease in maintenance of the electrode system and mechanical stokers.

System now pulls design flow rates. Pressure drop is held at 80 mm w.g., with a between-row interval of 60 seconds. Baghouse emissions are near zero.

The baghouse differential pressure decreased resulting in increased gas flow without expanding the baghouse. This was achieved even though the plant installed considerably less GORE^® Membrane Filter Bags than they had used when operating with non membrane bags. They closed the dilution air damper so that all the baghouse capacity is applied to the furnace. The frequent bag failures stopped and the inside of the baghouse is much cleaner.

The bag life improved, while baghouse down-time, maintenance costs, and stack emissions have all been drastically reduced. Bags have survived several acid upsets which would have completely destroyed the previous bags.