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Include alcohol to reclaim tower, formaldehyde rectify tower inside filling tower had appeared before early actually, be in first when, more dominant the equipment that basically is board type construction. But the occurrence as new-style tray, the development of filling tower had new breakthrough again.
As a result of the occurrence of energy crisis, filling tower subsequently the product got extensive attention, through development of a few years, the technology of this respect had very great progress more, inside many efficient filling and new-style tower emerge as the times require. Come so, the traditional situation that gives priority to with board type tower is broken, and have the tendency that replaces board type tower greatly. Besides structural change, new-style and new-style neat filling also is in ceaseless emerge in large numbers, but for its whole, synchronous development comes loose caboodle filling and neat filling is main development way. To can get used to diverse craft demand, and realize two-phase of fluid of the gas inside the tower between those who spread qualitative effect rise, packing material changes character also is one big focal point. If developing with such trend, the application of filling tower will get distensible further.