The invention relates to a conveying experimental device for pneumatic conveying performance measurement of an expanded
graphite loose material. The conveying experimental device comprises a hopper, a gas-
solid separator, a negative pressure fan and a conveying pipeline and an adjusting detection device. The conveying pipeline is connected to the hopper and the gas-
solid separator, a mixing
proportional valve and a first negative pressure gauge are arranged in a position where the hopper is connected, a second negative pressure gauge is arranged on the right side, connected to the inlet of the gas-
solid separator, of the conveying pipeline, and the right air outlet of the gas-solid separator is connected to the negative pressure fan through the adjusting detection device; in the gas-solid separator, a rotating screen with a minigroove
metal net and a fixed sleeve in clearance fit form a gas-solid separating structure; the gas-solid separator comprises a sealed box body, the fixed sleeve, the minigroove
metal net, the rotating screen, a star
discharger, a rotating shaft and a bearing pedestal. The conveying experimental device provided by the invention solves the problems that the expanded
graphite is liable to block the pipeline and the material is broken by means of an existing vacuum sucking and
feeding mode, and meanwhile, the conveying experimental device can collect pneumatic conveying performance parameters of the expanded
graphite particles in real time, thereby providing
test equipment and method for researching pneumatic conveying basic data of ultralight loose materials.