Smart granular raw material conveyance system and smart granular raw material conveyance method

A smart granular raw material conveyance system comprising:

• a granular material conveyance unit including at least one of a first conveyance unit configured to convey a granular material in an amount corresponding to a first conveyance amount, a second conveyance unit spaced apart from the first conveyance unit and configured to convey the granular material in an amount corresponding to a second conveyance amount equal to or different from the first conveyance amount, and a third conveyance unit spaced apart from the first conveyance unit and the second conveyance unit and configured to convey the granular material in an amount corresponding to a third conveyance amount equal to or less than the first conveyance amount or the second conveyance amount,
• wherein the second conveyance unit includes a granular material metering valve configured to meter the granular material in a predetermined fixed amount corresponding to the second conveyance amount,
• the granular material metering valve includes:
• a hollow metering housing having an open inlet to which a hopper is coupled and an open outlet disposed to be opposed to the inlet;
• and
• a distribution module built into the metering housing to be rotatable with respect to a first virtual shaft perpendicular to a virtual line connecting the inlet and the outlet and having a plurality of unit discharge grooves arranged at equal intervals along a rotation direction,
• the granular material introduced into the inlet by rotation of the distribution module is separated and accommodated in a predetermined fixed amount for each unit discharge groove and then discharged through the outlet according to a first-in-first-out method,
• when the granular material of the second conveyance unit rises in a second vertical pipe formed long in a height direction, part of the granular material of the second conveyance amount passes through the second vertical pipe according to a suction conveyance method using a suction force acting on an upper end side of the second vertical pipe, and
• next, a remaining granular material of the second conveyance amount passes through the second vertical pipe according to a pressure conveyance method using a pressurizing force acting on a lower end side of the second vertical pipe.