Page 277 - Chemical Process Equipment - Selection and Design
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Fan                   :ers




                                                                      Dry  products






                                                            shell       chest
                    Vacuum.
                   chamber                                                                                  General1  y
                                                                                                Knife       steam  heated
                                                      Steam tube  lhot  gas)   Steam  supply
                                                        rotary  dryer    and  condensate
                                                                  Product   removal
                                                                 (9)



                                                                                            Hot  gas
                                                         Exhaust                            -  s  e  d         t Exhaust
                                Drive  shaft
                                   Loading
                   Heating           Manhole  for
                   jacket            dumping                              and  condensate
                               Agitator
                                                              toadmg  door
                             (C)



                  wet



                                                                                                               Cyclone

                                                                                                             product
                                                      free                       door                     Porous  dlaphragm
                       Material  aul!et             radially  on  Spider   heating  lackel                   support
                               (d)                                  (i)


                                                                                                    I)
                                                                                                        Exhaust
                                                                                                            Cyclone
                      Feed      -Dryer
                                                                                                      Feed
                                                                                                         Dry  products

                           I             I



                  Figure 9.4.  Types of dryers cited in Tables 9.1 and 9.2.  (a) Tray or compartment. (b) Vacuum tray. (c) Vertical agitated batch vacuum drier.
                  (d) Continuous agitated tray vertical turbo.  (e) Continuous through circulation. (f) Direct rotary.  (g)  Indirect rotary.  (h)  Agitated batch
                  rotary (atmos or vacuum). (i) Horizontal agitated batch vacuum drier. (j) Tumble batch dryer. (k) Splash dryer. (1) Single drum. (m) Spray.
                  (n) Fluidized bed dryer. (0) Pneumatic conveying (mostly after Nonhebel  and Moss, 1971).
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