JP3229088U - Floating oil recovery device that can concentrate and recover thin oil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To firmly separate oil and water from harmful floating oil generated in industry, make water reusable as fresh water, and concentrate oil to 95% or more oil content and reuse it as fuel. Provide an oil recovery device. SOLUTION: A suction device 10 provided with a float ball 9 is provided in a casing main body 1 for storing a treatment liquid so as to be floatable, and a floating frame 12 constituting the suction device 10 is opened at the liquid surface of the treatment liquid. A suction pipe equipped with a screw is attached to the outer peripheral surface provided with the suction port 4, a pair of nuts is screwed to the suction pipe, and the pair of nuts is used to move the floating frame 12 up and down to move the processing liquid. The suction port 4 is suspended on the liquid surface of the casing, and the base end 12a of the floating frame 12 is fixed by a magnet provided on the inner wall 1a of the casing main body 1 and a hinge 7. [Selection diagram] Fig. 1

Description

The present invention is a floating oil recovery device capable of efficiently concentrating thin floating oil floating on a tank or a drainage pit to viscous oil and discharging only the concentrated oil to the outside.

Conventionally, the floating oil separating device separates water and oil by using the difference in specific gravity, and discharges the oil floating on the upper surface to the outside. However, a large amount of water is mixed in the structurally discharged oil. That is, it is generally said that it is difficult to concentrate, for example, an oil concentration of 95% or more (for example, Patent Document 1, Patent Document 2, and Patent Document 3).

JP 2011-255381 Patent 5557264 JP 2015-199025

Machine tool slide oil that floats on the machine tool tank and floating oil such as alkaline cleaning liquid are relatively easy to recover while the oil is thick. However, if the concentration of the oil is low, it is difficult to recover it, and even if it is recovered, there is a lot of water, and it has been required to concentrate the oil to make it a viscous oil.

In addition, the drainage pit laid in the factory prevents oil from flowing out to the outside gutter, and it is required to treat and collect it in the pit, and the adsorption mat etc. is floated on the drainage pit to adsorb the oil on the mat. I was allowed to collect the oil.

However, at present, the adsorbed mat contains little oil and is almost mixed with water, which is inefficient and cost-effective.

In view of the above, it is an object of the present invention to provide a floating oil recovery device capable of concentrating a floating thin oil into a viscous oil and recovering it.

In the invention according to claim 1, there is a suction device for sucking floating oil, the suction port has nuts whose height can be changed at the top and bottom, and further, at the opposite end of the suction device, There is a magnet for fixing the entire device to the tank via a hinge that can move up and down, and the suction device can be attached to the inner wall of the tank and removed.

In the device according to claim 2, the float that floats on the oil level (liquid level) is attached to the suction device at only one place. If there is only one float, the oil floating in the tank or pit will flow to the suction port over a wide area without being disturbed by the float, and the structure is intended to be focused.

In the device according to claim 3, a pump for sucking oil water from the oil suction device is laid, and oil water and air are drawn from the pump into the separation device, but the upper part of the separation tank is made of polypropylene. By passing through the fine thread-like fiber layer, fine particles of oil are entangled with the fiber layer and grow as oil particles, and the oil floats due to the difference in specific gravity.

According to the invention of claim 4, the oil passes through the filamentous fiber layer and is once pooled in the acrylic cylinder tank at a higher position.

On the other hand, the water sucked together with the oil inside the separation device is discharged from the water discharge port via the notch hole at the bottom of the separation tank and the water discharge pipe connected to this, but the specific gravity. Due to the difference, only water is discharged from the bottom, so it contains almost no oil and only water passes through.

There is a valve in the path of the water discharge pipe, and this valve can control the flow rate of water flowing out.

The ceiling inside the acrylic cylinder tank has a hole for air to escape, and the air sent together from the pump escapes to the outside only through this hole and is discharged.

The inside of the separation device is completely sealed except for this hole and the water outlet, and a weak pressure is applied to the inside of the separation tank by a pump.

Since the oil level in the acrylic cylinder is higher than the top of the water discharge pipe, the oil level does not reach the ceiling of the acrylic cylinder, and it is balanced and balanced in the middle of the acrylic cylinder.

In this state, the oil separated from the bottom and continuing to accumulate is gradually concentrated here, forming a thick oil layer (concentrated oil layer). That is, it becomes a viscous oil layer that is concentrated over time. When the layer has a certain thickness, the air cannot escape from the oil, and the weak air pressure from below pushes the whole oil upward, and only the oil is discharged from the oil outlet.

When the oil is discharged to some extent, the viscosity of the oil decreases, and when the oil becomes thin, only air passes through and the oil level returns to the original height.

According to the device according to claim 5, the height of the oil level of this acrylic cylinder tank is such that a flow control valve is provided in the path provided with the water discharge port of the lowermost tank in the separation tank, and the valve is provided. By adjusting, the height of the oil level can be changed and balanced. Since the cylinder is made of a transparent acrylic cylinder, the flow control valve can be used to set the equilibrium position while observing the height of the oil level from the outside.

The lower part of the outside of the acrylic cylinder tank is fitted with screws, and when the inside of the acrylic cylinder tank becomes dirty with oil, it can be removed and cleaned.

Side view of the suction device of the present invention Top view of the floating oil recovery vehicle of the present invention Side view of the floating oil recovery device body It is a schematic diagram which showed the state which the thin oil is concentrated and discharged in the acrylic cylinder tank, and is the figure of the 1st stage. 2nd stage diagram of the schematic diagram of FIG. 4-1 The third stage diagram of the schematic diagram of FIG. 4-1 4th stage diagram of the schematic diagram of FIG. 4-1

The present invention efficiently concentrates harmful floating oil generated in the industry, such as floating oil floating on the coolant liquid surface of a machine tool, floating oil floating on a cleaning device, and floating oil floating on a drainage pit. , It is a recovery device, and the recovered oil can be used as an effective fuel, not as an industrial waste.

Hereinafter, the floating oil recovery device of the present invention will be described with reference to the drawings. It should be noted that each embodiment is a preferable example, and is not limited to the description and / or drawing of each embodiment. Therefore, a structure in which a part of the configuration is changed within the scope of the invention, or a structure in which the same features and effects can be achieved, etc. are within the scope of the present invention.

As shown in claim 1, in the floating oil recovery device of the present invention, as shown in FIG. 1, the float ball 9 is attached to the frame 12 included in the casing main body 1. The suction device 10 is provided with a pair of nuts 6 and 6 (screw bodies) provided in a pipe 27 provided with an outer peripheral screw for adjusting the height of the suction port 4, which will be described later, and which is provided with a passage 27a through which suction oil, air, etc. pass. ) (In pairs, hereinafter referred to as one code), it is attached to the frame 12 so as to be movable up and down. That is, the positions of the frame 12 and the suction device 10 on the oil level can be adjusted by screwing and returning the pair of nuts 6. A suction port 4 for sucking the floating oil 26 is provided at the upper end of the pipe 27.

A simple structure in which a suction hose 3 is attached to the suction device 10, and a base end 12a of the frame 12 is attached to the casing body 1 via a hinge 7 provided on the inner wall 1a of the casing body 1 and / or a magnet 8. Is adopted. The suction hose 3 is connected to the pump 2 of the oil-water separation device 11 described later.

Further, even if the liquid level of the treatment liquid fluctuates up and down, the hinge 7 fluctuates flexibly and the float ball 9 works to move the suction device 10 up and down, and the suction port 4 moves the liquid level of the treatment liquid. It has a structure located in.

Then, as in claim 2, there is only one float ball 9 as shown in FIG. 1, so that when the floating oil 26 is sucked by the pump 2, the oil flow is not obstructed by the float ball 9. The structure is such that the floating oil 26 can be smoothly sucked into the suction port 4 from all directions, and the float ball 9 can suck the floating oil 26 more efficiently from 2 to 4 places.

Therefore, as compared with the case where a plurality of float balls 9 are provided, the flow of oil (floating oil) is smooth and can be sucked. Alternatively, the suction device 10 has a structure that is not affected by the flexible function of the hinge 7 even if the oil such as the liquid level of the treatment liquid moves up and down.

Then, as in claim 3, the floating oil 26 sucked from the suction port 4 reaches the oil-water separation device 11 via the suction hose 3 provided in the suction device 10. Inside the oil-water separator 11, polypropylene fibers 17 are compression-inserted between at least two punching plates 16, and the thin oil sucked from the suction port 4 floats and becomes entangled with the fibers when passing through the suction ports 4. While rising. As a result, the fine particles of oil gradually grow and become larger, and as a result of becoming oil particles, they become oil droplets (oil lumps) and exhibit a specific gravity difference effect that is effective for specific gravity separation. Therefore, it is possible to promote the rise of the oil mass.

Therefore, the mechanism of specific gravity separation will be described in detail with reference to claim 4. The oil-water separation device 11 and the acrylic cylinder tank 18 are integrated by the tightening screw 28 and the rubber packing 30, and the oil-water separation device 11 and the acrylic cylinder tank 18 are integrated. The inside of the acrylic cylinder 18 is sealed, and only the oil discharge port 21 and the water drain port 5 are open, so that the oil that has surfaced from the oil-water separation device 11 located below is once inside the acrylic cylinder tank 18. , Pooled. There is an oil discharge port 21 at the upper part of the acrylic cylinder tank 18, and only air is always discharged from this hole.

A flow rate adjusting valve 13 is incorporated in the path of the water drain port 5, and the height of the oil level 20 can be changed by turning the screw of the flow rate adjusting valve 13, and the water is discharged from the pump 2. The oil is discharged from the tip opening of the discharge pipe 15 provided in the pump 2, and the treatment liquid containing a large amount of oil is light, so it passes through the lower punching plate 16 and is entangled with the poplin fiber 17, and the other upper one. It passes through the punching plate 16 of the above and enters the acrylic cylinder tank 18, and the oil content is accumulated in this room. An air inlet 24 is provided in the room provided with the pump 2 below the oil-water separation device 11.

On the other hand, a large amount of water discharged from the discharge pipe 15 is settled downward due to the difference in specific gravity, and in this example, it is separated into oil and water in the separation chamber 29 provided in the oil-water separation device 11, and almost contains oil. The fresh water that does not exist passes through the notch hole 25 provided at the bottom of the partition plate 23 provided in the vertical direction on the water discharge pipe 14 side in the separation chamber 29, and the flow rate is adjusted by the flow rate adjusting valve 13, and the water discharge pipe Go out from 14 and the water drain port 5.

A height difference 22 is formed between the highest position of the water discharge pipe 14 and the substantially middle stage of the acrylic cylinder tank 18, and most of the water goes out from the water discharge port 5. On the other hand, as the flow rate adjusting valve 13 is tightened, the amount of water from the water discharge port 5 decreases, the pressure in the separation chamber 29 rises, and the oil level 20 rises. The position of the oil level 20 can be adjusted.

As shown in FIGS. 4-1 to 4-4, the oil in the acrylic cylinder tank 18 is a weak pressure air pushed up from below in a state where the oil is thin and does not accumulate much (FIG. 4-1). Passes through, and as a result, oil accumulates little by little. Further, in the case of a thick oil layer as shown in FIG. 4-2, weak pressure air cannot escape through the oil, so that the entire oil layer is lifted. Then, the thick oil in the acrylic cylinder tank 18 is pushed out vigorously from the oil discharge port 21 by raising the oil level 20 (FIG. 4-3). Further, after the concentrated oil is discharged, the oil becomes a thin state (thin oil 19), and air passes through the oil, so that the oil level 20 returns to the original position (FIG. 4-4).

As shown in claim 5, it has been disclosed that the height of the oil level 20 in the acrylic cylinder tank 18 can be adjusted by the flow rate adjusting valve 13, but the oil level 20 can be adjusted by using a transparent acrylic cylinder. The position of can be visually determined from the outside.

The present invention is characterized in that even thin oil that was difficult to recover can be concentrated and recovered, and the oil can be sold as fuel for a fee, and the separated fresh water can be reused without spoilage or offensive odor. To do.

Next, the flow of the treatment liquid (Kooland liquid) will be described. The treatment liquid stored in the casing main body 1 is sucked by the pump 2 from the suction port 4 of the suction device 10 and guided to the oil-water separation device 11 by the suction hose 3. Specific gravity separation is performed over time by the separation chamber 29 of the oil-water separation device 11.

Water is settled on the floor surface of the room by the separation chamber 29, but the oil component sequentially rises, passes from the punching plate 16 to the polypropylene fiber 17, and reaches the acrylic cylinder tank 18 from the fine holes on the upper surface. The oil content entwined with the polypropylene fiber 17 is as described above. Then, the air and / or air bubbles in the oil are discharged to the outside through the oil discharge port 21. Further, the light oil that has surfaced is discharged by opening and closing a cock (not shown). The discharged oil is reused.

The height difference 22, the height of the oil level 20, and the entanglement with the polypropylene fiber 17 are as described above.

Each of the above-mentioned examples is a preferable example. Within the scope of the purpose of each of the embodiments, a structure in which a part of the configuration is changed, or a structure in which the same features and effects can be achieved, and the like are within the scope of the present invention.

1 Casing body 1a Inner wall 2 Pump 3 Suction hose 4 Suction port 5 Water drain port 6 Nut 7 Hinge 8 Magnet 9 Float ball 10 Suction device 11 Oil / water separator 12 Frame 12a Base end 13 Flow control valve 14 Water discharge pipe 15 Discharge pipe 16 Punching plate 17 Polypropylene fiber 18 Acrylic cylinder tank 19 Thin oil 20 Oil level 21 Oil outlet 22 Height difference 23 Partition plate 24 Air inlet 25 Notch hole 26 Floating oil 27 Pipe 27a Passage 28 Tightening screw 29 Separation chamber 30 Rubber packing

Claims (5)

A suction device 10 provided with a float ball 9 is provided in a casing main body 1 for storing the treatment liquid so as to be floatable, and a suction port 4 that opens to the liquid surface of the treatment liquid is provided in the floating frame 12 constituting the suction device 10. A suction pipe with a screw is attached to the outer peripheral surface of the
A pair of nuts are screwed into the suction pipe, and the floating frame 12 is moved up and down with the pair of nuts so that the suction port 4 floats on the liquid surface of the treatment liquid.
Further, the base end 12a of the floating frame 12 is a floating oil recovery device capable of concentrating and recovering thin oil configured to be fixed by a magnet provided on the inner wall 1a of the casing main body 1 and a hinge 7. The float ball 9 has only one location, and therefore, the oil flow when the floating oil 26 is sucked by the pump 2 provided in the floating oil recovery device is not obstructed by the float ball 9 and is omnidirectional. The floating oil recovery device for concentrating and recovering the thin oil according to claim 1, which is configured to be smoothly attracted to the suction port 4. The floating oil 26 sucked from the suction port 4 reaches the oil-water separation device 11 via the suction hose provided in the suction device 10.
A polypropylene fiber 17 entwined between at least two punching plates 16 is compression-inserted into the oil-water separation device 11.
When the floating oil 26 sucked from the suction port 4 floats and passes through the polypropylene fiber 17, it floats while being entangled with the entangled fibers, and gradually flocks fine particles of oil to form oil droplets. The floating oil recovery device capable of concentrating and recovering the thin oil according to claim 2, which enables separation of specific gravity. An acrylic cylinder tank 18 is integrated with a tightening screw 28 at the upper part of the oil-water separation device 11, the inside of the oil-water separation device 11 and the acrylic cylinder tank 18 is sealed, and the oil discharge port 21 and water drainage are performed. The structure is such that the mouth 5 opens.
The liquid that has floated from the oil-water separation device 11 is once pooled inside the acrylic cylinder tank 18, and the inside of the acrylic cylinder tank 18 is provided from the oil discharge port 21 provided above the acrylic cylinder tank 18. Air is exhausted,
A flow rate adjusting valve 13 is incorporated in the path of the water drain port 5, and the height of the oil level 20 in the acrylic cylinder tank 18 can be changed by rotating the flow rate adjusting valve 13.
The liquid discharged from the pump 2 is discharged from the tip opening of the discharge pipe 15 provided in the pump 2, and the liquid containing a large amount of oil is light and passes through the punching plate 16 on the lower side and is entangled with the polypropylene fiber 17. The remaining liquid passes through the punching plate 16 on the upper side and enters the acrylic cylinder tank 18 and is accumulated.
After the oil, water, and air released from the discharge pipe 15 are gravity-separated in the separation chamber 29 provided in the oil-water separation device 11, the fresh water is discharged from the notch hole 25 provided at the bottom of the separation chamber 29. Is discharged to the outside from the water drain port 5 via the flow rate adjusting valve 13 and the water discharge pipe 14.
The highest portion of the water discharge pipe 14 and the middle stage of the acrylic cylinder tank 18 are provided with a height difference 22, and the fresh water in the oil-water separation device 11 comes out from the water discharge port 5 and closes the flow rate adjusting valve 13. At that time, the amount of outflow from the water discharge port 5 decreases, and the internal pressure of the separation chamber 29 and the oil level 20 increase.
While there is no accumulation of thin oil in the acrylic cylinder tank 18, the air inside passes through and the concentration increases, and the concentration of the acrylic cylinder tank 18 and the rise of the oil level 20 cause a part of the oil level 20. However, the floating oil recovery device capable of concentrating and recovering the thin oil according to claim 3, which is configured to be extruded from the oil discharge port 21. The height of the oil level 20 in the acrylic cylinder tank 18 can be adjusted by the flow rate adjusting valve 13, and the acrylic cylinder tank 18 uses a transparent acrylic cylinder, and the position of the oil level 20 is used. The floating oil recovery device capable of concentrating and recovering the thin oil according to claim 4, which can be visually observed from the outside.