| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrostatic conveyance device capable of classifying powders or grains into grades and separating positively charge powders or gains and negatively charged powders or gains and, moreover, capable of selecting desired powders or grains while performing classification and conveyance of the powders or grains and capable of conveying them. SOLUTION: In an electrostatic conveyance device conveying powders or grains by electrostatic force, since a first conveyance electrode group 2 is formed on the surface of the substrate 1, an array-type groove group 3 is formed by being made to have angles with respect to the first conveyance electrode group 2 on the electrode group 2 and a second conveyance electrode group 4 is formed on top surfaces of the array-type groove group 3, this device can convey selected powders or grains while selecting them by dropping powders of grains whose sizes are smaller than the pattern width of the groove group 3 and whose electrification quantities are small and whose conveyance flying are small into gaps of grooves while conveying them by the second conveyance electrode group 4. |
