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Besides the filter materials and filter machines, Zonel Filtech also offers free consultant on dust collector technology support, so we always can receive some technical support requirements from our clients and potential clients, when some questions are mentioned, we may edit some articles then release in our catalog to help our reader to solve the possible problems for their dust collectors, this article will explain the emission exceed problems.

According to the client’s description from the cement plant they adopted the vertical mill for the raw meal preparation, then conveying through an air slide chute system (630X79500mm), the angle of inclination is 8 degrees, with 2 blows (18.5KW). Recently, many blocking problems happened at the upper side of the air slide system (around 800mm to cyclone), always happens when the mill starts to work, but when the mill operating for some time, the blocking problem disappears.

The air slide chute conveying system is an extreme form of airtight pneumatic conveying method, which uses low-pressure air to pass through the air slide fabrics to achieve the purpose of powder/particle conveying. The compressed air disperses after passing through the air slide fabric and enters around the particles, which overcomes the resistance of the particles and air slide fabrics, so that the particles become to fluidization conditions like liquid, then flows by gravity in the tank. Compared with some mechanical conveying systems, the air slide chute system with the properties of no rotating parts, no noise, convenient operation and management, light equipment weight, low energy consumption, simple structure, large conveying capacity, and easy to change the conveying direction. Very economical equipment for conveying powdery materials and granular bulk solids.

As the dust collection technology develops, more and more dust collecting methods are invented and improved, because of the advantages of high filter efficiency and stable lower dust emission, the bag style dust filters are the most popular dust filters nowadays, and the pulse jet bag filter house is the most popular bag filters due to the broad adaptability.