JP4552166B2 - Organic solvent waste liquid recovery treatment recycling system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention recovers organic solvent waste liquid that can be reused by recovering organic solvent waste liquid that is generated when the interior of the coating machine is cleaned after the machine is automatically painted by a coating machine such as a robot. It relates to processing recycling system.
[0002]
[Prior art]
A painting robot capable of arbitrarily controlling the direction of the nozzle in a self-propelled manner has been put into practical use in a painting factory of a large machine. In such a painting robot, the paint inside and around the painting robot piping (hereinafter referred to as “painting equipment”) is washed with an organic solvent after the work is completed or when the type of paint is changed. is required.
[0003]
FIG. 3 is a conceptual diagram showing an example of a work place when a lower part of a large truck is automatically painted by a painting robot. 1 is a work place, 11 is a floor thereof, T is a truck stopped on the floor 11, and 12 is a floor 11 A painting robot that travels above and paints the lower surface of the truck T, 13 is a traveling rail of the painting robot 12, 14 is a storage cabinet of the painting robot 12 provided at one end of the traveling rail, and 15 is a floor in the storage cabinet 12. A waste liquid groove 16 is provided on the surface, 16 is a vertical pipe provided on the wall surface in the storage cabinet 14, and 2 is a drain pipe for connecting the waste liquid groove 15 and the vertical pipe 16.
[0004]
The painting robot 12 includes a painting nozzle capable of controlling the spraying direction and has a traveling mechanism. The painting robot 12 travels along the traveling rail while spraying the paint from the painting nozzle. Paint the bottom surface. The painting robot 12 indicated by a two-dot chain line, which is an imaginary line, indicates a state during the painting operation, and a solid line indicates a state stored in the storage cabinet 14 when the painting operation is completed or interrupted. The roof of the storage cabinet 14 can be opened by a rotary actuator as shown by a two-dot chain line when the painting robot 12 enters and exits.
[0005]
Paint is sent to the painting robot 12 during painting work, but organic solvent is sent to wash the painting equipment stored in the containment cabinet 14, and the paint remaining in the piping and the containment cabinet 14 is washed away. These waste liquids are discharged from the drainage pipe 2 through the waste liquid groove 15 and the vertical shaft 16.
Since the organic solvent waste liquid generated here contains a large amount of organic solvent, there is a problem in discharging it to sewers and rivers. Was taken.
[0006]
All of this work must be done manually, but not only is the organic solvent harmful to the human body, but the volume of liquid increases as the size of the object to be coated increases, and the amount of work increases and the processing costs are enormous. The countermeasures were desired.
[0007]
[Problems to be solved by the invention]
The present invention eliminates these problems, automates the entire process of organic solvent waste liquid recovery, eliminates manpower, prevents accidents due to toxicity and high heat, and allows the recovered organic solvent to be reused. The purpose is to reduce the cost associated with cleaning.
[0008]
[Means for Solving the Problems]
The present invention relates to an apparatus for laterally feeding a waste solvent can from which an organic solvent waste liquid in a recovery tank for receiving an organic solvent waste liquid from a work place is taken out, and a solvent regeneration apparatus for receiving the waste solvent can from the transverse feed apparatus and regenerating the solvent. An organic solvent waste liquid recovery processing recycling system comprising: a recovery meter for detecting the amount of liquid in the recovery tank; and an upper surface opening of a waste solvent can waiting under the recovery tank. A waste solvent can lid for covering, a waste solvent can lid lifting device for raising and lowering the waste solvent can lid, and an air vent valve attached to the upper part of the recovery tank, wherein the lateral feed device is disposed below the recovery tank. Roller conveyor from the waste solvent receiving position to the feed position for delivery to the solvent recycling device, which is a subsequent process, a lateral feed cylinder for laterally feeding the waste solvent can, and a receiving position stopper And a feed position stopper, wherein the solvent reclaiming device is disposed of from the body of the solvent reclaiming device, a cooling device for cooling the solvent after the regeneration treatment, a discharge port for taking out the regenerated and cooled solvent, and a lateral feeding device. An organic solvent waste liquid recovery process comprising: a charging machine that receives a solvent can and imports it into a main body of the solvent recycling apparatus; and a lid closing machine for closing the waste solvent can during the regeneration process. Preferably, the organic solvent waste liquid recovery treatment recycling system is a system in which the solvent regenerating apparatus is of a heated fractionation type.
[0009]
In addition, the present invention accepts the organic solvent waste liquid in the recovery tank, takes it out into a waste solvent can, and laterally feeds this waste solvent can, and then sends it to the solvent regeneration device by a charging machine, and the waste solvent by the lid closing machine. A method for recovering organic solvent waste liquid, wherein the organic solvent is recovered by performing a regeneration process after covering the can with a lid, and preferably, the regeneration process is of the heating fractionation method This is a method for collecting and recycling organic solvent waste liquid.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the recovery tank for temporarily storing the organic solvent waste liquid is sealed, and when removing the waste liquid from this, the container is covered, and the cover is also covered during the regeneration process, etc. The machine automatically performs all operations such as lateral feeding of waste solvent cans, loading into solvent recycling equipment, and mounting of lids, so that not only the solvent is recovered effectively, but the working environment is improved. At the same time, there is no need for human work, and the costs associated with cleaning the painting equipment can be reduced.
[0011]
【Example】
Embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing an embodiment of an organic solvent waste liquid recovery processing recycling system, and FIG. 2 is a plan view of the same. Reference numeral 3 denotes an oil / water separation tank for separating oil from waste liquid flowing out from the waste liquid pipe, which includes a filter and a pump (not shown). 31 is a liquid feed pipe for sending waste liquid from the oil / water separation tank 3, 4 is a sealed recovery tank for receiving the liquid, 41 is a liquid meter for detecting the liquid volume, 42 is a waste solvent can D waiting below the recovery tank 4 Waste solvent can lid that closes the top opening of the tank, 421 is a waste solvent can lid lifting device, 43 is an automatic opening / closing valve for the inlet of the recovery tank 4 at the end of the liquid feed pipe 31, and 44 is an automatic opening / closing valve for the lower surface of the recovery tank 4, that is, the outlet. 45, an air vent valve attached to the upper part of the recovery tank 4, and 5 a lateral feed device for laterally feeding the waste solvent can D from the waste solvent receiving position below the recovery tank 4 toward the solvent regeneration device as a post process. 51 is a roller conveyor, 52 is a lateral feed cylinder, 53 is a receiving position stopper, 54 is a feed position stopper delivered to the solvent regenerator, 6 is a solvent regenerator, 61 is a main body of the solvent regenerator, and 62 is a crossfeeder 5. Received waste solvent can D from A charging machine to be taken into the main body of the agent recycling apparatus, 621 is a gripping mechanism for gripping the waste solvent can D, 622 is a lifting mechanism, in this embodiment a rodless air cylinder, 623 is a turning mechanism, in this embodiment a rotary actuator, 63 Is a lid closing machine for covering the waste solvent can D during the regeneration process, 631 is a gripping mechanism for gripping the lid C used during the regeneration process, 632 is a lifting mechanism, in this embodiment a rodless air cylinder, Reference numeral 633 denotes a turning mechanism, and in this embodiment, a rotary actuator, 64 is a cooling device for cooling the solvent after the regeneration process, and 641 is a discharge port for taking out the regenerated solvent.
[0012]
The cleaning waste liquid of the coating equipment that has flowed into the oil / water separation tank 3 from the work place 1 through the drain pipe 2 is separated here, and flows into the recovery tank 4 from the liquid feed pipe 31 through a filter and a pump (not shown). The amount of liquid in the collection tank 4 is detected by a liquid meter 41. If the amount of liquid is sufficient, the pump of the oil / water separation tank 3 is stopped. If there is a vacancy, the pump is operated to automatically open and close the inlet of the collection tank 4 The valve 43 is opened, and the waste liquid in the oil / water separation tank 3 is received in the recovery tank 4 as much as possible.
[0013]
Below the collection tank 4, a waste solvent can D is waiting. When it is confirmed that the amount of liquid in the recovery tank 4 is abnormal, the waste solvent can lid lifting device 421 lowers the waste solvent can lid 42 to close the upper surface opening of the waste solvent can D, and the lower part of the recovery tank 4 is discharged. The automatic open / close valve 44 and the air vent valve 45 attached to the upper part of the recovery tank 4 are opened to take out the waste liquid in the recovery tank 4 into the waste solvent can D. If a normal 18 liter can is used as the waste solvent can D, it is appropriate that about 15 liter is taken out at a time. When the extraction is completed, the automatic open / close valve 44 and the air vent valve 45 are closed. The reason why the waste solvent can D is covered at this time is that the solvent tends to be mist-like and easily scattered around during the filling operation. The air vent valve 45 is opened and closed because the recovery tank 4 is a sealed tank.
[0014]
The waste solvent can D that has received the waste liquid is laterally fed by the lateral feed cylinder 52 on the roller conveyor 51 from the waste solvent receiving position below the recovery tank 4 toward the solvent recycling device, which is a subsequent process, and is fed to the feed position stopper 54. Stop at the hit position. The waste solvent can D at the waste solvent receiving position is indicated by D ₁ , and the waste solvent can D at the sending position is indicated by D ₂ .
[0015]
Subsequently, the charging machine 62 of the solvent regenerating apparatus 6 receives the waste solvent can D from the roller conveyor 51 and inserts it into the solvent regenerating apparatus 6. The arm of the charging machine 62 descends, the waste solvent can D is gripped by a gripping mechanism such as a finger, is lifted by the lifting mechanism 622 and is simultaneously swiveled by the swiveling mechanism 623 and is slightly lowered to slightly lower the solvent regenerating apparatus 6 main body 61. A waste solvent can D is placed at a predetermined position. The charging machine 62 releases the gripping mechanism, retreats to a predetermined position, and stands by. A waste solvent can D at a predetermined position of the solvent regenerator 6 main body 61 is indicated by D ₃ .
[0016]
Here, the lid closing machine 63 is actuated to cover the waste solvent can D with the lid C to be used during the regeneration process by raising / lowering, turning, and gripping operations. Since preparation for solvent regeneration is now complete, the regeneration of the solvent regeneration device 6 is turned on and regeneration is started. The regeneration of the solvent is a simple distillation method, and the process takes several hours.
The regenerated solvent is cooled by the cooling device 64 and taken out from the discharge port 641. On the other hand, since sludge that cannot be regenerated remains in the waste solvent can D, the cover C is first removed by the lid closing machine 63 and the waste solvent can D is removed from the solvent regeneration apparatus by the charging machine 62 in the reverse procedure. Return to the roller conveyor 51 of the transverse feed device 5.
[0017]
After that, remove the sludge in the waste solvent can D or replace it with another can, and feed it to the position where it hits the receiving position stopper 53 on the roller conveyor 51 for the next receiving from the collection tank. stand by.
As described above, according to the present invention, there is almost no manual work for extracting the waste liquid into the drum can as in the conventional case, and the whole process automatically proceeds.
[0018]
【The invention's effect】
According to the present invention, the entire process of organic solvent waste liquid recovery is automated, eliminating manpower, preventing accidents due to toxicity and high heat, and allowing the recovered organic solvent to be reused. As a result, the working environment is improved at the same time.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a plan view showing an embodiment of the present invention.
FIG. 3 is a conceptual diagram showing a workplace for painting work according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Work place 2 Drain pipe 3 Oil-water separation tank 4 Recovery tank 5 Cross feed device 6 Solvent regenerator
11 floors
12 Painting robot
13 Running rail
14 Storage cabinet
15 Waste liquid groove
16 downspout
31 Liquid feed pipe
41 Fluid meter
42 Waste solvent can lid
43 Automatic open / close valve
44 Automatic dispensing valve
45 Air vent valve
51 Roller conveyor
52 Transverse cylinder
53 Receiving position stopper
54 Feed position stopper
61 Main body (of solvent recycling equipment)
62 Charging machine
63 lid closing machine
64 Cooling device
421 Waste solvent can lid lifting device
621, 631 Grip mechanism
622, 632 Lifting mechanism
623, 633 swivel mechanism
641 Discharge port C Lid D Waste solvent can T Truck

Claims (2)

An oil / water separation tank (3) for receiving the organic solvent waste liquid from the workplace (1) and separating the oil, a recovery tank (4) for receiving the organic solvent waste liquid from which the oil has been separated in the oil / water separation tank (3), and a recovery tank (4) A lateral feed device (5) for laterally feeding the waste solvent can (D) from which the organic solvent waste liquid is taken out, and receiving the waste solvent can (D) from the lateral feed device (5) to regenerate the solvent. An organic solvent waste liquid recovery processing recycling system comprising a solvent regeneration device (6), wherein the oil / water separation tank (3) includes a filter and a pump, and the recovery tank (4) is disposed in the recovery tank (4). A liquid meter (41) for detecting the amount of liquid, a waste solvent can lid (42) blocking the upper surface opening of the waste solvent can (D) waiting below the recovery tank (4), and the waste solvent can lid Waste solvent can lid lifting device (42) ) And an air vent valve (45) attached to the upper part of the recovery tank (4), and the lateral feed device (5) is disposed in a post process from a waste solvent receiving position below the recovery tank (4). A roller conveyor (51) that reaches a feeding position to be delivered to a certain solvent recycling device, a transverse feeding cylinder (52) that feeds a waste solvent can (D) between them, a receiving position stopper (53), and a feeding position stopper (54 The solvent regenerator (6) includes a main body (61) of the solvent regenerator, a cooling device (64) for cooling the solvent after the regeneration treatment, and a discharge port for taking out the regenerated and cooled solvent ( 641), a charging machine (62) that receives the waste solvent can (D) from the transverse feed device (5) and takes it into the main body of the solvent regeneration device (6), and a waste solvent can (D) during the regeneration process To cover) Closed machine (63) and collecting process recycling system of an organic solvent liquid waste comprising: a. The organic solvent waste liquid recovery treatment recycling system according to claim 1, wherein the solvent regenerator (6) is of a heated fractionation type.

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