Page 437 - Industrial Power Engineering and Applications Handbook
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Switchgear and controlgear assemblies  13/41 1
         Power output and velocity controller to monitor control   system with a powder recovery arrangement and Figure
         over quantity of powder and thickness of coat.   A13.9 its straight-line layout.
         Spray booth with paint recovery  system.
         Oven.                                         Limitations of powder coating

       Figure A13.8 shows a simple layout of a powder coating   In an electrostatic technique, as a result of  electrostatic


                           t                              t                             t

                        Exhaust fan                    Exhaust fan                   Exhaust fan
                                                                                ed radiation or






















                              remove moisture

















                                               Exhaust ducting over
                                                the pickling tank
                                                                                Scrubber
             Effluent     Effluent                                             to dissolve
         qTHTb drzage                                                          acid fumes





       *Not very efficient therefore not popular.
                                                                     -
                                                                 Arranaement of exhaust ducting
       Note  For flow diagram of the fume treatment system refer to Figure A13.10   detail-X-X'
       Figure A13.8  A dry painting system illustrating typical layout of a medium-sized paint shop for powder painting showing a seven-tank
       pre-treatment process
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