APPARATUS FOR CONTROLLING OPERATION OF N-SECTION ELECTRIC FILTER Russian patent published in 2002 - IPC

FIELD: power machine engineering. SUBSTANCE: in order to enhance economical characteristics of processes for pneumatic ash removal and recovery of dried ash, apparatus includes magnetic particle separator connected through OR-gate with electric power source. Inlets of OR-gate are connected with outlets of delay units. Outlet of level meter of first section is connected with switching unit controlling inlet of electropneumatic valve of first section and through delay circuit - with control inlets of circuits of subsequent sections. Outlet of level meter of each next section is connected through AND-gate with switching unit controlling inlet of electropneumatic valve of respective section and through delay unit - with control inlets of AND-gates of next sections. EFFECT: improved operational parameters of apparatus. 1 dwg