A multi-stage circulating treatment device for printed circuit board electroplating wastewater

Abstract

This utility model relates to a treatment device, and more particularly to a multi-stage circulating treatment device for printed circuit board electroplating wastewater. This utility model provides such a device, including an outlet pipe, an inlet pipe, a three-way valve, an actuator, a branch pipe, a testing box, a water quality analyzer, a control panel, a circulating pipe, a water pump, and a mixing tank. An outlet pipe is located at the left end of the testing box, and a three-way valve is located outside the outlet pipe. An actuator is located on the top of the three-way valve, and the bypass outlet of the three-way valve is connected to a branch pipe, which contains a circulating pipe. The design of the water quality analyzer, three-way valve, and control panel in this utility model enables multi-stage purification of electroplating wastewater, more thoroughly treating metal ions and impurities contained in the wastewater, and ensuring stable effluent quality.

Description

Technical Field

[0001] This utility model relates to a treatment device, and more particularly to a multi-stage recycling treatment device for electroplating wastewater from printed circuit boards. Background Technology

[0002] Electroplating wastewater mainly consists of wastewater and waste liquid discharged from electroplating plants, such as rinsing water for plated parts, waste tank liquid, equipment cooling water, and floor washing water. Due to the variety of plating types and the complexity of the process, the water quality is complex and the composition is difficult to control. Electroplating wastewater mainly contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, and silver, as well as cyanide. These electroplating wastewaters are highly toxic substances that are carcinogenic, teratogenic, and mutagenic, posing a great threat to the living environment of humans and other organisms. Electroplating wastewater can generally be divided into three categories: the first category is chromium-containing electroplating wastewater, which has a high concentration of chromium ions; the second category is cyanide-containing electroplating wastewater, which has a high concentration of cyanide ions; and the third category is general electroplating wastewater, which mainly contains a variety of heavy metal ions.

[0003] Traditional electroplating wastewater treatment methods involve complex procedures, produce wastewater of low quality and poor stability, and have unsatisfactory treatment effects. Utility Model Content

[0004] In order to overcome the shortcomings of traditional electroplating wastewater treatment methods, such as complicated procedures, poor effluent quality, unstable operation and poor treatment effect, this utility model can provide a multi-stage recycling treatment device for printed circuit board electroplating wastewater.

[0005] Technical Solution: A multi-stage circulating treatment device for electroplating wastewater from printed circuit boards includes an outlet pipe, an inlet pipe, a three-way valve, an actuator, a branch pipe, a testing tank, a water quality analyzer, a control panel, a circulating pipe, a water pump, a mixing tank, a reagent input pipe, and a wastewater input pipe. The left end of the testing tank has an outlet pipe, and a three-way valve is located outside the outlet pipe. An actuator is located on the top of the three-way valve, and the bypass outlet of the three-way valve is connected to a branch pipe. A circulating pipe is located inside the branch pipe. The right end of the testing tank has an inlet pipe, and a mixing tank is located at the right end of the inlet pipe. A water pump is located outside the inlet pipe. The end of the circulating pipe furthest from the branch pipe is connected to the rear end of the mixing tank. A reagent input pipe and a wastewater input pipe are located on the top of the mixing tank. A water quality analyzer is located inside the bottom of the testing tank, and a control panel is located on the top of the testing tank. Both the actuator and the water quality analyzer are electrically connected to the control panel.

[0006] In one embodiment, the device further includes a connecting pipe, a solenoid valve, and a water sample box. The connecting pipe is located on the right side of the bottom of the detection box, and the water sample box is located at the bottom of the detection box. The end of the connecting pipe away from the detection box is connected to the right end of the water sample box. The solenoid valve is sleeved on the outside of the connecting pipe. A knob is threaded to the bottom of the water sample box. The solenoid valve and the control panel are electrically connected.

[0007] In one embodiment, an inspection window is also included, with the inspection window located at the front end of the inspection box.

[0008] In one embodiment, a flow monitor is also included, which is sleeved on the outside of the inlet pipe, and the flow monitor and control panel are electrically connected.

[0009] In one embodiment, an alarm is also included, which is located on the top of the detection box and is electrically connected to the control panel.

[0010] A multi-stage recycling method for printed circuit board electroplating wastewater: S1: Add the electroplating wastewater and treatment agents to the mixing tank; S2: The wastewater and reagents are thoroughly mixed and reacted using a mixing tank; S3: After the preset time, pump the mixture into the test chamber; S4: The water quality tester analyzes the water sample to determine whether it meets the standards; S5: If the standard is not met, control the three-way valve to open the bypass, and the wastewater will return to the mixing tank for reprocessing through the circulation pipe; if the standard is met, control the three-way valve to close the bypass and open the outlet pipe. S6: Qualified wastewater is discharged through the outlet pipe.

[0011] The present invention has the following advantages: The design of the water quality tester, three-way valve and control panel of the present invention enables multi-stage purification of electroplating wastewater, more thoroughly treating the metal ions and impurities contained in the wastewater, ensuring stable water quality of the effluent and improving the treatment effect. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the back of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the testing box of this utility model.

[0015] Figure 4 This is a schematic diagram of the connecting pipe, solenoid valve, and water sample box of this utility model.

[0016] In the attached diagram, the following are the reference numerals: 1. Outlet pipe, 2. Inlet pipe, 3. Three-way valve, 4. Actuator, 5. Branch pipe, 6. Detection box, 7. Water quality analyzer, 8. Control panel, 9. Circulation pipe, 10. Connecting pipe, 11. Solenoid valve, 12. Water sample tank, 13. Mixing tank, 14. Wastewater inlet pipe, 15. Chemical inlet pipe, 16. Flow monitor, 17. Inspection window, 18. Water pump, 19. Alarm. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] Example 1: A multi-stage recycling treatment device for printed circuit board electroplating wastewater, such as... Figures 1-4 As shown, the system includes an outlet pipe 1, an inlet pipe 2, a three-way valve 3, an actuator 4, a branch pipe 5, a testing box 6, a water quality analyzer 7, a control panel 8, a circulation pipe 9, a water pump 18, a mixing tank 13, a reagent input pipe 15, and a wastewater input pipe 14. The left end of the testing box 6 has an outlet pipe 1, and the outside of the outlet pipe 1 has a three-way valve 3. The top of the three-way valve 3 has an actuator 4, and the bypass outlet of the three-way valve 3 is connected to the branch pipe 5. The branch pipe 5 contains a circulation pipe 9. The right end of the testing box 6 has an inlet pipe 2, and the right end of the inlet pipe 2 has a mixing tank 13. The outside of the inlet pipe 2 has a water pump 18. The end of the circulation pipe 9 away from the branch pipe 5 is connected to the rear end of the mixing tank 13. The top of the mixing tank 13 has a reagent input pipe 15 and a wastewater input pipe 14. The bottom inside of the testing box 6 has a water quality analyzer 7, and the top of the testing box 6 has a control panel 8. Both the actuator 4 and the water quality analyzer 7 are electrically connected to the control panel 8.

[0019] like Figure 4 As shown, it also includes a connecting pipe 10, a solenoid valve 11, and a water sample tank 12. The connecting pipe 10 is located on the bottom right side of the detection box 6, and the water sample tank 12 is located at the bottom of the detection box 6. The end of the connecting pipe 10 away from the detection box 6 is connected to the right end of the water sample tank 12. The solenoid valve 11 is sleeved on the outside of the connecting pipe 10. A knob is threaded to the bottom of the water sample tank 12. The solenoid valve 11 is electrically connected to the control panel 8. When water samples need to be collected, the solenoid valve 11 is opened through the control panel 8, and the wastewater in the detection box 6 flows into the water sample tank 12 through the connecting pipe 10. The staff can open the opening at the bottom of the water sample tank 12 through the knob to take out the sample for subsequent laboratory analysis, ensuring that the water quality test results are true and valid.

[0020] like Figure 1 As shown, it also includes an inspection window 17. The front end of the testing box 6 is equipped with an inspection window 17, which makes it convenient for staff to directly observe the water quality of the wastewater in the testing box 6.

[0021] like Figure 3 As shown, it also includes a flow monitor 16. The flow monitor 16 is sleeved on the outside of the inlet pipe 2. The flow monitor 16 is electrically connected to the control panel 8. The flow monitor 16 is used to monitor the flow rate of wastewater entering the detection box 6 in real time, which is convenient for system monitoring and operation management.

[0022] like Figure 1As shown, it also includes an alarm 19. The top of the detection box 6 is equipped with an alarm 19, which is electrically connected to the control panel 8. If the water quality analyzer 7 detects that the concentration of electroplating wastewater is too high, the water quality analyzer 7 will control the alarm 19 to sound an alarm through the control panel 8, prompting the operator to adjust the reagent formula to ensure the subsequent treatment effect.

[0023] In operation, electroplating wastewater is transported to the mixing tank 13 through the wastewater inlet pipe 14, and the treatment agent is then transported to the mixing tank 13 through the agent inlet pipe 15. The circuit of the mixing tank 13 is then connected, causing the servo motor to drive the rotating shaft, which in turn drives the mixing plate to rotate, thus stirring the electroplating wastewater and ensuring thorough mixing of the wastewater and treatment agent. After a preset time, the control panel 8 turns on the water pump 18 to transport the treated electroplating wastewater from the mixing tank 13 to the testing tank 6. The water quality analyzer 7 measures the turbidity, residual chlorine, pH, and ammonia content of the treated electroplating wastewater. Rapid detection of indicators such as nitrogen concentration and dissolved oxygen concentration is used to determine whether the water quality meets the standards. When the water quality does not meet the standards, the water quality detector 7 will control the actuator 4 to rotate the valve core of the three-way valve 3 through the control panel 8, opening the bypass outlet and sending the electroplating wastewater in the detection box 6 back to the mixing tank 13 for treatment through the circulation pipe 9. When the water quality meets the standards, the control panel 8 will control the actuator 4 to rotate the valve core of the three-way valve 3, closing the bypass outlet and opening the outlet pipe 1 passage, so that the treated wastewater that meets the standards can be discharged through the outlet pipe 1 and enter the subsequent reuse stage or be discharged in compliance with the standards.

[0024] Example 2: A multi-stage recycling method for printed circuit board electroplating wastewater: S1: Add the electroplating wastewater and treatment agents to the mixing tank 13; S2: The wastewater and the reagent are fully mixed and reacted through the mixing tank 13; S3: After the preset time, pump the mixture into the detection chamber 6; S4: Water quality analyzer 7 tests water samples to determine whether they meet standards; S5: If the standard is not met, control the three-way valve 3 to open the bypass, and the wastewater will return to the mixing tank 13 for reprocessing through the circulation pipe 9; if the standard is met, control the three-way valve 3 to close the bypass and open the outlet pipe 1; S6: The qualified wastewater is discharged through the outlet pipe 1.

[0025] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A multi-stage circulating treatment device for printed circuit board electroplating wastewater, characterized in that, The system includes an outlet pipe (1), an inlet pipe (2), a three-way valve (3), an actuator (4), a branch pipe (5), a testing box (6), a water quality analyzer (7), a control panel (8), a circulation pipe (9), a water pump (18), a mixing tank (13), a reagent input pipe (15), and a wastewater input pipe (14). The left end of the testing box (6) is equipped with an outlet pipe (1), and a three-way valve (3) is located on the outside of the outlet pipe (1). An actuator (4) is located on the top of the three-way valve (3), and the bypass outlet of the three-way valve (3) is connected to a branch pipe (5). A circulation pipe is located inside the branch pipe (5). (9) The right end of the test box (6) is provided with a water inlet pipe (2), the right end of the water inlet pipe (2) is provided with a mixing box (13), the outside of the water inlet pipe (2) is provided with a water pump (18), the end of the circulation pipe (9) away from the branch pipe (5) is connected to the rear end of the mixing box (13), the top of the mixing box (13) is provided with a reagent input pipe (15) and a wastewater input pipe (14), the bottom inner side of the test box (6) is provided with a water quality detector (7), the top of the test box (6) is provided with a control panel (8), the actuator (4) and the water quality detector (7) are both electrically connected to the control panel (8).

2. The multi-stage circulating treatment device for electroplating wastewater of printed circuit board according to claim 1, characterized in that, It also includes a connecting pipe (10), a solenoid valve (11) and a water sample box (12). The bottom right side of the detection box (6) is provided with a connecting pipe (10), and the bottom of the detection box (6) is provided with a water sample box (12). The end of the connecting pipe (10) away from the detection box (6) is connected to the right end of the water sample box (12). The outside of the connecting pipe (10) is fitted with a solenoid valve (11). The bottom of the water sample box (12) is threaded with a knob. The solenoid valve (11) and the control panel (8) are electrically connected.

3. The multi-stage circulating treatment device for electroplating wastewater of printed circuit board according to claim 2, characterized in that, It also includes an inspection window (17), and the front end of the inspection box (6) is provided with an inspection window (17).

4. The multi-stage recycling treatment device for printed circuit board electroplating wastewater as described in claim 3, characterized in that, It also includes a flow monitor (16), which is fitted on the outside of the water inlet pipe (2), and the flow monitor (16) and control panel (8) are electrically connected.

5. The multi-stage circulating treatment device for electroplating wastewater of printed circuit board according to claim 4, characterized in that, It also includes an alarm (19), which is installed on the top of the detection box (6) and is electrically connected to the control panel (8).

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