STATIC CONTROL OF MACHINES 283 11 . 23 AUTOMATIC FILLING OF SILOS USING A CLOCK AND A MONO SHOT

STATIC CONTROL OF MACHINES 283 11 . 23 AUTOMATIC FILLING OF SILOS USING A CLOCK AND A MONO SHOT

STATIC CONTROL OF MACHINES 283 11 . 23 AUTOMATIC FILLING OF SILOS USING A CLOCK AND A MONO SHOT

static control of machines 283 11 23 automatic filling of silos using a clock and a mono shot

static control of machines 283 11 23 automatic filling of silos using a clock and a mono shot

STATIC CONTROL OF MACHINES 283 11 . 23 AUTOMATIC FILLING OF SILOS USING A CLOCK AND A MONO SHOT The schematic diagram for the system is shown in Fig . 11 . 46 . In this system , certain material is to be distributed in three small silos 1, 2, 3 which feed individual machines 1, 2, and 3 . Material is fed to silos from the main silos through a belt conveyor and diverters . Level of material in small silos is sensed by a lower level and an upper level limit switch as shown in the figure . Filling of any of the silos starts when the level of material in it falls below certain level as determined by the position of the lower level limit switch . When material in all the silos is above the upper levek , conveyor is at standstill and diverters are in up position . Gate of main silos is also closed . When level of material in any of the silos falls below the lower limit , the conveyor starts moving and gate of the main silos opens . Diverter above the particular silos falls down so that material is diverted into that silos from the conveyor . When level rises to the upper limit , up limit switch gets actuated which causes the conveyor to stop, gate of the main silos to close , and the diverter to go up . In the diagram , diverter 2 is shown in down position and material is shown falling in to silos No . 2 . In the diagram , the diverters are shown connected in series , so that only one silos may be filled at a particular time . Gate of main silos and diverter 1, 2, 3 are operated by solenoid valves . Special limit switches are used for sensing low and high level in silos . Material for processing in machines can be taken out from the silos by manual operation of the gate of a silos by the operator of a particular machine .

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