Ionic liquid plating post-treatment cleaning device under protective atmosphere

Abstract

The utility model provides an ionic liquid post-plating treatment cleaning device used in a protective atmosphere. The ionic liquid post-plating treatment cleaning device comprises a tank body, a cleaning liquid supply device and a liquid storage tank used for storing cleaning liquid, a distillation tank and a plurality of cleaning tanks which are sequentially distributed from left to right are arranged in the tank body; the liquid inlet end of the cleaning liquid supply device communicates with the liquid storage tank, and the liquid outlet end of the cleaning liquid supply device communicates with the bottom of each cleaning tank and is used for supplying cleaning liquid to each cleaning tank regularly and quantitatively; a heater is fixed at the inner bottom of the distillation tank, a liquid collecting tank is fixed on the inner side of the upper part of the distillation tank, and the liquid collecting tank is communicated with a liquid storage tank through a cleaning liquid recovery pipe; an overflow tank is fixed on the inner side of the upper part of each cleaning tank, and all the overflow tanks are communicated with the bottom of the distillation tank through pipelines; according to the utility model, the mode of independent liquid feeding and overflowing of each cleaning tank is adopted, so that the renewal of liquid in each tank body is ensured, and the liquid cannot flow back to the previous cleaning tank when a workpiece is immersed.

Description

Technical Field

[0001] The utility model relates to the technical field of ionic liquid plating cleaning devices, in particular to an ionic liquid plating post-treatment cleaning device under a protective atmosphere. Background Art

[0002] Ionic liquid plating is a new electroplating technology that uses non-aqueous ionic liquid as the electrolyte. It has many advantages that traditional electroplating technologies cannot match. For example, it can realize the electroplating of active metals such as aluminum that cannot be electrodeposited from aqueous solutions. It has no risk of hydrogen embrittlement and is suitable for the electroplating of easily oxidized metals. At the same time, the electroplating process is green and environmentally friendly, so it has broad application prospects.

[0003] After the workpiece is electroplated with ionic liquid, it is necessary to clean the workpiece and separate the plating solution and the cleaning solution to achieve the reuse of the cleaning solution and the plating solution; currently, Chinese Patent No.: ZL201721427766.3 discloses a protective atmosphere ionic liquid plating pretreatment equipment, which consists of four rinsing tanks and a distillation tank, and the liquid level of the rinsing tank is lowered successively.

[0004] During normal operation, the distilled cleaning liquid enters the first cleaning tank. As the liquid level decreases, the liquid overflows and finally overflows into the distillation tank. There is a heater at the bottom of the distillation tank. After the cleaning liquid is heated and turned into steam, the cleaning liquid steam contacts the condensing coil and distills the cleaning liquid into the collecting tank. Then the condensed cleaning liquid returns to the first cleaning tank through the collecting tank, and the cycle is repeated.

[0005] However, the liquid level needs to be lowered in sequence, otherwise the overflow effect cannot be achieved, and the liquid level height difference between the two tanks cannot be too small, otherwise the workpiece placed in the tank will have a backflow phenomenon, and the dirtier liquid will enter the previous tank, resulting in a higher concentration in the cleaning liquid and incomplete cleaning; and because the liquid level in each tank needs to be lowered in sequence, the height will limit the number of rinsing tanks, so the cleaning is not sufficient. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an ionic liquid post-plating cleaning device for use in a protective atmosphere, which adopts a method in which each cleaning tank has independent liquid inlet and overflow to ensure the renewal of the liquid in each tank body, and the liquid will not flow back to the previous cleaning tank when the workpiece is immersed.

[0007] The utility model provides an ionic liquid post-plating treatment cleaning device under a protective atmosphere, comprising a tank body, a cleaning liquid supply device and a liquid storage tank for storing the cleaning liquid; a distillation tank and a plurality of cleaning tanks distributed in sequence from left to right are arranged in the tank body; a liquid inlet end of the cleaning liquid supply device is connected with the liquid storage tank, a liquid outlet end of the cleaning liquid supply device is connected with the bottom of each cleaning tank and is used for supplying the cleaning liquid to each cleaning tank in a timely and quantitative manner; a heater is fixed on the inner bottom of the distillation tank, a liquid collecting tank is fixed on the inner side of the upper part of the distillation tank, and the liquid collecting tank is connected with the liquid storage tank through a cleaning liquid recovery pipe; an overflow tank is fixed on the inner side of the upper part of each cleaning tank, and all the overflow tanks are connected with the bottom of the distillation tank through pipelines.

[0008] By adopting the above-mentioned structure, the present application cancels the overflow method of the liquid level difference in each cleaning tank, and adopts an independent liquid inlet overflow method for each cleaning tank. The size and overflow method of each cleaning tank are the same, ensuring the liquid reflux caused by the increase in liquid level when the workpiece is just placed in, so that the concentration in each cleaning tank is the lowest, and a constant pressure pump is used to inject the distilled cleaning liquid, so that each independent cleaning tank can be filled with liquid.

[0009] In a possible embodiment, the cleaning liquid supply device includes a constant pressure pump, a liquid inlet pipe and a liquid supply main pipe. The inlet end of the constant pressure pump is connected to the liquid storage tank through the liquid inlet pipe, and the outlet end of the constant pressure pump is connected to the liquid supply main pipe. The bottom of each cleaning tank is connected to the liquid supply main pipe through a liquid supply branch pipe, and each liquid supply branch pipe is provided with an electric ball valve. After adopting this cleaning liquid supply device, when the constant pressure pump is working and the electric ball valve is opened, the constant pressure pump can extract the cleaning liquid in the liquid storage tank and add the cleaning liquid to each cleaning tank. When the constant pressure pump stops working, the electric ball valve returns to a closed state. Through the intermittent operation of the constant pressure pump, the cleaning liquid can be added to each cleaning tank in a timely and quantitative manner.

[0010] In a possible embodiment, the pipeline includes a liquid return main pipe, one end of which is connected to the bottom of the distillation tank, and each overflow tank is connected to the liquid return main pipe through a liquid return branch pipe; by adopting this structure, after the cleaning liquid in the cleaning tank overflows into the corresponding overflow tank, the cleaning liquid entering the overflow tank can reliably flow into the distillation tank through the liquid return branch pipe and the liquid return main pipe.

[0011] In one possible embodiment, a first condensing coil is arranged above the distillation tank, and the first condensing coil is fixed to the tank body; after the first condensing coil is arranged above the distillation tank, the cleaning liquid vaporized by heat in the distillation tank can be cooled into liquid cleaning liquid through the first condensing coil, and the liquid cleaning liquid can flow back into the distillation tank, that is, the vaporized cleaning liquid is recycled, thereby avoiding waste of cleaning liquid and pollution to the surrounding environment.

[0012] In one possible implementation, a second condensing coil is provided above each cleaning tank, and each second condensing coil is fixed to the tank body; after the second condensing coil is provided above the cleaning tank, the cleaning liquid vaporized by heat in the cleaning tank can be cooled into liquid cleaning liquid through the second condensing coil, and the liquid cleaning liquid can return to the cleaning tank, that is, the recycling of the vaporized cleaning liquid is realized, thereby avoiding the waste of cleaning liquid and avoiding pollution to the surrounding environment.

[0013] In a possible implementation, a liquid level gauge is installed on the side wall of the liquid storage tank; after the liquid level gauge is installed on the side wall of the liquid storage tank, the liquid level gauge can clearly display the remaining amount of cleaning fluid in the liquid storage tank, thereby facilitating the staff to add cleaning fluid to the liquid storage tank in a timely manner.

[0014] In one possible embodiment, a drain valve is installed at the upper end of the liquid storage tank; by installing the drain valve at the upper end of the liquid storage tank, the air pressure inside the liquid storage tank can be balanced with the air pressure outside the liquid storage tank, thereby facilitating the cleaning liquid from the cleaning liquid recovery pipe to flow back into the liquid storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0018] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] See also Figure 1 As shown, the embodiment of the present application discloses an ionic liquid post-plating cleaning device under a protective atmosphere, comprising a tank body 1, a cleaning liquid supply device and a liquid storage tank 2 for storing the cleaning liquid; a distillation tank 11 and a plurality of cleaning tanks 12 distributed in sequence from left to right are arranged in the tank body 1; the liquid inlet end of the cleaning liquid supply device is connected to the liquid storage tank 2, and the liquid outlet end of the cleaning liquid supply device is connected to the bottom of each cleaning tank 12 and is used to supply the cleaning liquid to each cleaning tank 12 in a timely and quantitative manner; a heater 3 is fixed on the inner bottom of the distillation tank 11, a liquid collecting tank 4 is fixed on the inner side of the upper part of the distillation tank 11, and the liquid collecting tank 4 is connected to the liquid storage tank 2 through a cleaning liquid recovery pipe 41; an overflow tank 5 is fixed on the inner side of the upper part of each cleaning tank 12, and all the overflow tanks 5 are connected to the bottom of the distillation tank 11 through pipelines; in the present application, 6 cleaning tanks are arranged, and accordingly, 6 overflow tanks are also arranged. By setting 6 cleaning tanks, the number of rinsing times of the workpiece can be increased, so that the cleaning of the workpiece is more thorough.

[0021] The cleaning liquid supply device includes a constant pressure pump 61, a liquid inlet pipe 62 and a liquid supply main pipe 63. The inlet end of the constant pressure pump 61 is connected to the liquid storage tank 2 through the liquid inlet pipe 62, and the outlet end of the constant pressure pump 61 is connected to the liquid supply main pipe 63. The bottom of each cleaning tank 12 is connected to the liquid supply main pipe 63 through a liquid supply branch pipe 64, and each liquid supply branch pipe 64 is provided with an electric ball valve 65. After adopting this cleaning liquid supply device, when the constant pressure pump is working and the electric ball valve is opened, the constant pressure pump can extract the cleaning liquid in the liquid storage tank and replenish the cleaning liquid into each cleaning tank. When the constant pressure pump stops working, the electric ball valve returns to a closed state. Through the intermittent operation of the constant pressure pump, the cleaning liquid can be replenished to each cleaning tank in a timely and quantitative manner.

[0022] The pipeline includes a liquid return main pipe 51, one end of which is connected to the bottom of the distillation tank 11, and each overflow tank 5 is connected to the liquid return main pipe 51 through a liquid return branch pipe 52. By adopting this structure, after the cleaning liquid in the cleaning tank overflows into the corresponding overflow tank, the cleaning liquid entering the overflow tank can reliably flow into the distillation tank through the liquid return branch pipe and the liquid return main pipe.

[0023] A first condensing coil 7 is arranged above the distillation tank 11, and the first condensing coil 7 is fixed to the tank body 1; after the first condensing coil is arranged above the distillation tank, the cleaning liquid vaporized by heat in the distillation tank can be cooled into liquid cleaning liquid through the first condensing coil, and the liquid cleaning liquid can flow back into the distillation tank, that is, the vaporized cleaning liquid is recycled, thereby avoiding the waste of cleaning liquid and pollution to the surrounding environment.

[0024] A second condensing coil 8 is arranged above each cleaning tank 12, and each second condensing coil 8 is fixed to the tank body 1; by arranging the second condensing coil above the cleaning tank, the cleaning liquid vaporized by heat in the cleaning tank can be cooled into liquid cleaning liquid through the second condensing coil, and the liquid cleaning liquid can return to the cleaning tank, that is, the recycling of the vaporized cleaning liquid is realized, thereby avoiding the waste of cleaning liquid and avoiding pollution to the surrounding environment.

[0025] A liquid level gauge 21 is installed on the side wall of the liquid storage tank 2; after the liquid level gauge is installed on the side wall of the liquid storage tank, the liquid level gauge can clearly display the remaining amount of cleaning liquid in the liquid storage tank, thereby facilitating the staff to add cleaning liquid to the liquid storage tank in a timely manner.

[0026] A drain valve 22 is installed at the upper end of the liquid storage tank 2; by installing the drain valve at the upper end of the liquid storage tank, the air pressure inside the liquid storage tank can be balanced with the air pressure outside the liquid storage tank, thereby facilitating the cleaning liquid from the cleaning liquid recovery pipe to flow back into the liquid storage tank.

[0027] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An ionic liquid post-plating cleaning device for use in a protective atmosphere, characterized in that: The invention comprises a tank body (1), a cleaning liquid supply device and a liquid storage tank (2) for storing cleaning liquid; the tank body (1) is provided with a distillation tank (11) and a plurality of cleaning tanks (12) arranged in sequence from left to right; the liquid inlet end of the cleaning liquid supply device is connected to the liquid storage tank (2), the liquid outlet end of the cleaning liquid supply device is connected to the bottom of each cleaning tank (12) and is used to supply cleaning liquid to each cleaning tank (12) in a timely and quantitative manner; a heater (3) is fixed on the inner bottom of the distillation tank (11), a liquid collecting tank (4) is fixed on the inner side of the upper part of the distillation tank (11), and the liquid collecting tank (4) is connected to the liquid storage tank (2) through a cleaning liquid recovery pipe (41); an overflow tank (5) is fixed on the inner side of the upper part of each cleaning tank (12), and all the overflow tanks (5) are connected to the bottom of the distillation tank (11) through pipelines.

2. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to claim 1, characterized in that: The cleaning liquid supply device comprises a constant pressure pump (61), a liquid inlet pipe (62) and a liquid supply main pipe (63); the inlet end of the constant pressure pump (61) is connected to the liquid storage tank (2) via the liquid inlet pipe (62); the outlet end of the constant pressure pump (61) is connected to the liquid supply main pipe (63); the bottom of each cleaning tank (12) is connected to the liquid supply main pipe (63) via a liquid supply branch pipe (64); and each liquid supply branch pipe (64) is provided with an electric ball valve (65).

3. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to claim 1, characterized in that: The pipeline comprises a liquid return main pipe (51), one end of which is connected to the bottom of the distillation tank (11), and each of the overflow tanks (5) is connected to the liquid return main pipe (51) via a liquid return branch pipe (52).

4. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to any one of claims 1 to 3, characterized in that: A first condensing coil (7) is arranged above the distillation tank (11), and the first condensing coil (7) is fixed to the tank body (1).

5. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to any one of claims 1 to 3, characterized in that: A second condensing coil (8) is arranged above each cleaning tank (12), and each second condensing coil (8) is fixed to the tank body (1).

6. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to any one of claims 1 to 3, characterized in that: A liquid level meter (21) is installed on the side wall of the liquid storage tank (2).

7. The ionic liquid post-plating cleaning device for use in a protective atmosphere according to any one of claims 1 to 3, characterized in that: A drain valve (22) is installed at the upper end of the liquid storage tank (2).

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