Stairmand Cyclone design

Stairmand, C. J. (1951) Trans. Inst. Chem. Eng. 29, 356. Design and performance of cyclone separators. STRAUSS, N. (1975) Industrial Gas Cleaning (Pergamon). 

Stairmand, C. J., The Design and Performance of Cyclone Separators, Trans. Instn. of Chem. Engrs., 29 356ff, London (1951)... 

Particulate Scrubbers Wet collectors, or scrubbers, form a class of devices in which a liquid (usually water) is used to assist or accomplish the collection of dusts or mists. Such devices have been in use for well over 100 years, and innumerable designs have been or are offered commercially or constructed by users. Wet-film collectors logically form a separate subcategory of devices. They comprise inertial collectors in which a film of liquid flows over the interior surfaces, preventing reentrainment of dust particles and flushing away the deposited dust. Wetted-wall cyclones are an example [Stairmand, Tram. lmt. Chem. Eng., 29,356 (1951)]. Wet-film collectors have not been studied systematically but can probably be expected to perform much as do equivalent dry inertial collectors, except for the benefit of reduced reentrainment. 

Cyclones have been used to remove particulates from gas streams since the middle of the 19th century (Rietema and Verver, 1961). Early researchers (Rosin et al., 1932 Alexander, 1949 Stairmand, 1951 Ter Linden, 1949 linoya, 1953 Lapple, 1951 van Tongren, 1936) conducted the first experiments designed to understand the operation of this mechanically simple but operationally complex device. Many of these experiments (Ter Linden, 1949 Lapple, 1951 Stairmand, 1951, etc.) resulted in cyclone designs based on relative cyclone dimensions. More recently, Zenz (1975) developed an empirical cyclone design procedure that has achieved popular acceptance in the United States. 

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