JPS6137317B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a used lubricant for lubricating a forging die, for example.
The present invention relates to a lubricant regeneration device that allows reuse of the lubricant that can be reused.

(Prior Art) In the past, once used lubricant was considered to be discarded, regardless of the degree of dirt or foreign matter, and reuse was extremely rare. Reuse was only considered if the concentration was very rough and would not cause any problems. Therefore, strict control of concentration is required.
In addition, materials that do not want to be mixed with other components (oil, scale, dust, etc.) are not recycled.

(Problems to be Solved by the Invention) The problems to be solved by the present invention are to solve the problem of sewage treatment and the problem of high cost caused by conventional disposable water. .

(Means for Solving the Problem) As a means for solving the problem, in the present invention, in a lubrication device that injects lubricant with a nozzle, the pit reservoir into which the lubricant flows after lubrication is transferred to the waste system. Divided into a first tank that communicates with the reprocessing system and a second tank that communicates with the reprocessing system, an oil-water separation tank that separates components based on specific gravity is provided between the second tank and the supply tank, and a lubricant from the oil-water separation tank. The structure is such that a regenerated liquid tank is connected to add new liquid to the lubricant to obtain lubricant of a constant quality.

(Function) With this configuration, most of the lubricant can be reused by replenishing only the consumed lubricant that adheres to products and is carried away to other places, and the lubricant that is discarded because it is difficult to reuse. That will happen.

(Example) Next, an example of the present invention will be described with reference to FIG. 1 is a press machine, 2 is a mold, and 3 is a nozzle for injecting lubricant into the mold 2. The press 1 is installed on a floor 4, and a pit 5 is provided at the bottom of the floor 4. The lower part of the pit 5 is formed into a pit reservoir 6. Conventionally, this pit reservoir 6 was a single tank, but in the present invention, it is connected to the waste system via a pump 7 and a valve 8. The first tank 9, the pump 10 and the valve 11 communicate with each other.
It is divided into a second tank 12, which communicates with a reprocessing system to be described next.

The reprocessing system is provided with an oil/water separation tank 13, a stock solution tank 14, a regeneration solution tank 15, and a dilution tank 16, and each of these tanks and a supply tank 17 are connected as described below. The oil/water separation tank 13 is provided at a higher position than the floor 4, and is separated by a partition wall 18.
It is divided into a first part where oil 19 collects and a second part where oil does not collect. The pipe line to which the pump 10 is connected is connected to the upper part of the first part, and the lower part thereof is connected to the first tank 9 of the pit reservoir 6 together with an overflow line via a valve 20.

The second portion of the oil-water separation tank 13 is communicated with the regenerating liquid tank 18 via the filter 21, and the supernatant liquid is transferred to the regenerating liquid tank 15. The regeneration liquid tank 15 and the dilution tank 16 are arranged side by side, and both receive a necessary amount of stock solution from the stock solution tank 14 located above them through a pipe line via valves 22 and 23. Transfer of the stock solution to these tanks is controlled by a liquid meter 24. In addition, an air motor 25,
26 respectively driven by fans 27,2
8 is provided so that it is stirred from beginning to end.

The regenerating liquid tank 15 and the dilution tank 16 are provided with valves 29, 30 and valves 31, 32 near the bottom, and the first tank 9 of the pit reservoir 6 and the supply tank 17 are connected to each other by pipes connecting these valves. It is connected to.

Next, the effect will be explained. First, the work is started by supplying the stock solution to the stock solution tank 14 and the supply tank 17. All the lubricant (initially the same as the stock solution) sprayed toward the mold 2 of the press 1 by the nozzle 3 is transferred to the pit 5.
The water enters the second tank 12 of the pit reservoir 6 at the bottom of the tank. The used lubricant that has entered the second tank 12 is pumped up by the pump 10 and enters the first part of the oil-water separation tank 13 through the valve 11. Here, the oil 19 is separated from the others, and the supernatant liquid of the second portion partitioned off by the partition wall 18 is filtered by the filter 21 and then sent to the regenerating liquid tank 15.
to go into. The oil/water separation tank 13 separates and separates the conventional lubricant, the aforementioned oil 19, and scale produced by forging based on the difference in specific gravity. Oil 19, scale, etc. enter the first tank 9 of the pit reservoir 6 and are discarded.

In the regenerating liquid tank 15, the specific gravity of a certain fixed amount of liquid is measured, and the stock liquid is supplied from the stock liquid tank 14 where there is a shortage. This injection is monitored with a liquid meter 24. If the specific gravity is too large, use the dilution tank 16 as appropriate.
Add liquid from above to maintain a constant specific gravity (concentration). The regenerated liquid obtained in this way is
It is supplied to the nozzle 3 from the supply tank 17. As the lubricant circulates, some consumed lubricant adheres to products and is carried away elsewhere, but this amount must be replenished with new liquid as appropriate (see Figure 2).

(Effects of the Invention) Since the present invention is configured and operates as described above, the lubricant that was conventionally discarded without being reused can be effectively utilized without wasting it. This not only brings about a significant cost advantage, but also significantly reduces the amount of waste, which has the advantage of eliminating the need for sewage treatment equipment.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an embodiment of the present invention, and FIG. 2 is a graph showing the relationship between the specific gravity of the recovered liquid and the amount of replenishment. 3... Nozzle, 5... Pit, 6... Pit reservoir, 9... First tank, 12... Second tank, 13... Oil/water separation tank, 14... Raw liquid tank, 15... Regenerated liquid tank,
17... Supply tank.

Claims (1)

[Claims] 1 In a lubricating device that injects lubricant with a nozzle, the pit reservoir into which the lubricant flows after lubrication is divided into a first tank communicating with the disposal system and a second tank communicating with the reprocessing system, and the second tank An oil-water separation tank that separates components based on specific gravity, and a regenerated liquid tank that adds new liquid to the lubricant from the oil-water separation tank to obtain a lubricant of a constant quality are connected between the oil and water separation tank and the supply tank. Features a lubricant regeneration device.