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Pendulum Flaps in cement preheaters have the function to avoid counter gas flow through material pipes between two stages of the preheater. Such counter gas flow leads to unwanted heat loss and build-up formation in meal ducts and results in drastic reduction of the separation efficiency of the cyclone above. The importance of well functioning pendulum flaps is often neglected by operators. High specific energy consumption (kcal/kg clinker) and poor separation efficiency of the cyclone causing large quantities of re-circulating dust in the system as well as high quantities of dust loss into the kiln filter are the costly consequence. Based on many years of experience gained in cement plants around the world, AEW has manufactured various types of PENDULUM FLAP which overcomes the problems usually faced with conventional pendulum flaps.
Cyclone Immersion (Dip) Tube for Preheater Lower Stages. Dip tubes have significant influence on the separation efficiency of a cyclone. In modern suspension preheaters it is standard to use cyclones with a dip tube for improved separation. Especially the design of a lower stage dip tube requires know-how and expertise in order to achieve a low pressure drop of the cyclone by retaining the best possible separation efficiency (to avoid too high dust circulation). The choice of material is of great importance due to high operating temperatures, abrasive material and often existing chemical conditions. The cyclone dip tube length and diameter are naturally the most important design factors. Detailed calculations and experienced engineering are necessary to find the optimized solution. Furthermore, a sliding suspension of the cyclone dip tube is recommendable to avoid heat deformation of the cyclone dip tube and eventual damage, both of which would lead to higher pressure drop and poor separation. A TEC’s cyclone dip tube is manufactured in separate heat warped segments. Highest separation efficiency, easy and quick assembly and installation as well as long durability are the essential characteristics. A TEC is your specialist in cyclone optimization.
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Air Slide (gravity conveyor) is synonymous with an innovative conveying technology - Leading the way with the highest capacity per unit-width in the industry. A full array of material flow control products – built to the rugged standards expected of Frigate – compliments our Air Slide conveyor product line. Whether transferring material from point-to-point in your plant or fluidizing your silos for load-out, Air Slide performs.
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