Designing fiber bed mist eliminator systems for AN prill towers requires an acute knowledge of salts formation and the effects they have on the efficiency and operation of the system and plant. To wash the AN salts and control their formation on and in the fiber beds, an irrigation system is a must. MECS has designed and successfully deployed irrigation systems that use spray wetted mesh pads for pre-filtration and humidification. Additional element throat sprays are also used for effective fiber bed irrigation and wash down. This AN prill “scrubber” arrangement has resulted in very high efficiency, zero opacity and long fiber bed life. The heart of this AN prill tower “scrubber” system is the Brink Fiber Bed which employs 3 special design features for AN service.
• Polyester and/or high temperature polymeric fiber for long life.
• Rigorous quality controlled angle wrap roving fiber or bulk pack for customized
performance and pressure drop characteristics.
• Bi-component fiber beds for fast drainage of captured mist and irrigation
artifacts for highest efficiency.
Brink mist eliminators have been used in ammonium nitrate prill towers for over 40 years to help control soluble particulate emissions at AN plants throughout the world.