Negative pressure suction device, powder and granular material conveying device and liquid processing device using the same

摘要

PROBLEM TO BE SOLVED: To use a negative pressure to securely suck a processed material with a large suction force, and to use this negative pressure suction device, to transport a large amount of powder particles efficiently. Provided is a body transporting device and a liquid processing device capable of continuously processing and supplying a large amount of liquid. SOLUTION: A tank 13 having a structure capable of withstanding a negative pressure inside, a discharge port 14 having an upper end opened to the inside of the tank 13, and a lower end having a processed object suction pipe 15 opened to the outside of the tank 13 and one end thereof. In a negative pressure suction device 12 having an intake pipe 18 having an intake port 17 opening in the tank 13 and an exhaust means 19 connected to the other end of the intake pipe 18 outside the tank 13, the discharge port 14 is provided in the tank 13 A process in which the intake port 17 is disposed upward, and the intake port 17 is disposed in an upper part or an intermediate part of the tank 13 in the center of the tank 13 in plan view, and is discharged from the discharge port 14 and falls above the intake port 17. A cover member 20 is provided to prevent the object 11 from entering the intake port 17. [Selection diagram] Figure 1