JPS6417304U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
Figure 3 is a cross-sectional view of a conventional example, Figure 3 is a cross-sectional view of another conventional example, Figure 4 is a diagram showing experimental conditions, and Figure 5 shows changes in the ratio of scum to changes in floating scum film thickness. FIG. 6a is a diagram showing the scum removal situation on the liquid surface in the embodiment shown in FIG. 1, and FIG. 6b is a diagram showing the scum removal situation on the liquid surface in the conventional example shown in FIG. c is a diagram showing the state of scum removal on the liquid surface in the conventional example of FIG. 3; 21... Main tank, 24... Recovery tank, 25... Partition wall, 25b... Upper edge, 26... Filter member, 27
... Oil recovery section, 28 ... Scum collection section, 31 ... Liquid level adjustment mechanism, 32 ... Communication pipe, 41 ... Scraping mechanism, 61
...Exhaust pipe.

Claims (1)

[Scope of utility model registration request] A main tank for storing waste oil, a liquid level adjusting means that communicates with the main tank via a communication pipe and adjusts the liquid level height position of the main tank by overflowing excess liquid, and a filter extending in a vertical direction. The scum collection section is divided into a scum recovery section and an oil recovery section by a member, and the scum recovery section is arranged on a recovery tank that communicates with the main tank through the upper edge of the partition wall, and on the main tank, and is arranged above the main tank. a scraping mechanism that moves along the liquid surface and causes the scum on the liquid surface to flow into the scum collection section; a reflux pipe that communicates the oil recovery section with the main tank; A floating scum removal device comprising: a discharge pipe for discharging to the outside of the recovery tank.