| 摘要 |
PROBLEM TO BE SOLVED: To provide a material transportation device capable of automatically transporting an amount of material asked by a transportation destination which is changed from transportation origin even if transportation destination is changed. SOLUTION: This material transportation device is provided with a material tank 9a, an opening and closing device 11 for the material tank, a transportation pipe 3 connected with the opening and closing device to transport a material by gas stream, a material catching device 2a in which the material flowing in the transportation pipe is put, a granular material amount detection part 4 for detecting amount of material in the material catching device, a gas stream generating source 7 for generating gas stream in the transportation pipe, a transportation destination controller 5 for operating the gas stream generating source based on a signal from the granular material amount detection part, a gas pressure detection part 12 for detecting pressure fluctuation in the transportation pipe, and a transportation origin controller 13 for opening and closing the opening and closing device based on a signal of the gas pressure detection part. The transportation origin controller measures transportation time based on a detection signal of the gas pressure detection part and stores it. It controls the opening and closing device based on the previously measured transportation time when transporting material the next time and discharges the material. COPYRIGHT: (C)2005,JPO&NCIPI
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