Patent GB-1258389-A (GB)
IPC: B01D59/20
Filed: 1970-09-29
Abstract: 1,258,389. Cyclone separators. N. A. L. WIKDAHL. 29 Sept., 1970 [29 Sept., 1969], No. 46328/70. Heading B2P. An apparatus for separating gases, liquids or a mixture thereof comprises a plurality of groups 20a of cyclone separators 20, the separators in a group being located at positions spaced around and along the axis of the group and the groups being themselves spaced around and along an axis of the apparatus. As shown in Fig. 1, concentric cylindrical shells 6, 7 are mounted within a housing comprising a fixed base portion 2 and a removable casing 1 having a top 3 integral or secured thereto. A lifting device 12 extending to a spider support attached to the bottom portion of the shell 7 and including a hydraulic motor, a hydraulic cylinder and a reciprocable piston the upper end of which is connected to the top 3 serves to lift up the top 3 and the casing 1 to provide access to the cyclone separators. The shells 6, 7 are provided with rows of apertures 6a, 7a between and within which are supported concentric conical shells 14, 15,Fig. 4. The cyclone separators 20 are attached to the shells 14, 15 which define an annular inlet chamber 16 which is common to all of the separators in a group and gives access to the inlets 27a, Fig. 5, of each separator. The apex end of each inner shell 14 is closed by a wall 19 and the base end is open at 13, opening into an annular chamber 36 between the casing/and the shell 6. The end of each inlet chamber 16 adjacent shell 6 is closed by a wall 17 and that adjacent shell 7 is open. The apex ends of adjacent rows of separators in each group open into a common outlet chamber 18 formed within the inner shell 14. A common annular outlet chamber 33 is provided for all the groups of separators which open therein at their base ends. The shells 14, 15 may be cylindrical and their crosssection may be circular, square or polygonal. The separators 20 may be frusto-conical and press fitted or received in the shells 14, 15, or they may be cylindrical and made of two parts provided with collars for locating them axially within the shells 14, 15. In operation, the fluid material to be separated enters through an inlet 31 into the common distribution chamber 30 within the shell 7, thence into the inlet: chambers 16 and through the inlets 27a of the individual separators 20. The lighter fraction leaves each separator via outlet 32, Fig. 5, at the base end, enters the chamber 33 and leaves the housing via an outlet 34. The heavier fraction discharges from each separator through apex end outlet 35, enters the corresponding chamber 18 and passes via outlet 13 into the chamber 36 and thence from the housing via an outlet 37. Another form of apparatus with the fluid material entering into the casing and passing inwardly through apertures in the outer cylindrical shell is described. Instead of being cylindrical, the housing and shells can be in the form of a square or polygonal box or a truncated cone or pyramid. The various parts of the apparatus may be made of metal, ceramic, glass or plastics, examples of which are given. The separators may be arranged in series within the apparatus by interconnecting the chambers 18 in a series of groups of separators with the inlets 16 in another series and by compartmenting chamber 33 so that base end outlets of adjacent groups of separators in adjacent shells 14, 15 are kept separate, and linked in series with the inlets of another series of groups of separators.