Participate in the event: Comparison of various carbonization towers in soda ash industry production
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As is well known, carbonization towers include Solvay towers, externally cooled carbonization towers, and uncooled carbonization towers... When it comes to large-scale production of such equipment, there are advantages and disadvantages in terms of investment costs for the towers, the absorption efficiency and crystal quality of the towers, as well as the continuous operation cycle. Everyone is welcome to share their thoughts on this!
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Currently, there are mainly two types of carbonization towers used in large ammonia-alkali plants: one is the internally cooled tray tower (Ф2800/Φ3000 H=28548), and the other is the internally cooled mushroom-cap tower (φ3000/φ3400 H=29895). Each of these towers has its advantages and disadvantages; the crystallization quality in the mushroom-cap tower is better than that in the tray tower, but the crystal particles produced by the mushroom-cap tower are less uniform than those from the tray tower. At present, the crystallization time for the mushroom-cap tower is around 160 seconds, while it is around 290 seconds for the tray tower. Through comparisons using filter-alkali machines from the same manufacturer, there is no significant difference between Crystal 160S and 290S. Moreover, the particles in the cap tower are uneven, which means that slight improper operation can easily damage the crystals, resulting in a longer recovery time. The corrosion rate of the mushroom-cap tower is faster than that of the tray tower, which has a significant impact on product quality, particularly with regard to iron content and whiteness levels. Of course, the choice of tower is also closely related to your saltwater purification method: for purification using the lime-soda method, a mushroom-cap tower is generally used, while for the lime-ammonium carbonate method, a sieve-plate tower is chosen