The animation demonstrates the working principles and characteristics of various tower equipment—reciprocating sieve plate extractors.
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By using the crankshaft, the sieve plate on the central shaft is moved up and down reciprocally, thereby promoting the ejection of liquid through the sieve pores to achieve dispersion and mixing, as well as contact mass transfer.
In a vibrating plate tower, the sieve plates are connected in series and driven by a mechanical device mounted above the top of the tower to move back and forth vertically, thereby stirring the liquid flow and performing a function similar to that of stirring in a pulsating tower. The design of an extraction tower mainly involves determining the diameter of the tower and the height of its working section. First, divide the liquid flow rate by the operating speed to obtain the tower cross-section, from which the tower diameter can be calculated. Then, based on the characteristics of the tower, as well as the properties of the material stream and the separation requirements, the height of each mass transfer unit and the number of such units are determined; multiplying these two values gives the operating height of the tower. There are also methods that calculate the working section height based on the equivalent height and theoretical series.