| 摘要 |
PURPOSE:To maintain the specific gravity of a suspention liquid constant, by detecting the specific gravity of suspention liquid such as fluorescent slurry and supplying a correction liquid. CONSTITUTION:A fluorescent slurry 31 in a charger tank 1 is injected by means of a pump 2 through a hose 3 and an injection electromagnetic valve 4 into a panel 5. When not injecting, it is returned through a hose 6 and a filter 7 to a charger tank 1 and to collect the slurry 32 through a hose 11 and a filter 12. Fluorescent slurries 33, 34 having high and low specific gravities respectively can be injected through injection electromagnetic valves 14, 27 to the filter 12. A minihopper 18 for containing the detection end 22 of a hydrometer is provided in the path of a bypass hose 8 of the charger tank 1. The injection amount of the fluorescent slurries 33, 34 are regulated by the output of the hydrometer 23 to maintain the specific gravity of the fluorescent slurry 31. |
