Printed circuit board etching waste liquid treatment device and treatment method

Abstract

The present invention discloses a device and method for treating waste liquid from etching of a printed circuit board. The present invention relates to the field of waste liquid treatment technology, comprising a base plate and an annular plate, wherein a first support rod is fixedly connected to the side of the upper surface of the base plate, and a lower surface of the annular plate is fixedly connected to a limiting frame, and an end of the first support rod away from the base plate is slidably connected to the inner cavity of the limiting frame, and a water adding device is provided. By setting the water adding device, waste liquid from etching of a printed circuit board can be added to the device, and strip-shaped impurities and large-particle impurities in the waste liquid from etching of the printed circuit board can be removed and purified. The water adding device comprises a water adding tank, which is fixedly connected to the inner ring of the annular plate, and a first funnel is fixedly connected to the upper surface of the water adding tank, and a first spring is fixedly connected to the inner wall of the first funnel, so as to achieve the effect of recycling impurities and metal particles in the waste liquid from etching of the printed circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of waste liquid treatment, in particular to a printed circuit board etching waste liquid treatment device and treatment method. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, alumina ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of power layout. This gave rise to a new product, the rigid-flex board. Therefore, the rigid-flex board is a circuit board with both FPC and PCB characteristics formed by combining a flexible circuit board and a rigid circuit board through processes such as pressing and other processes according to relevant process requirements.

[0003] During the production of circuit boards, the printed circuit board etching operation is required, which generates a lot of printed circuit board etching waste liquid. When the printed circuit board etching waste liquid is treated, the impurities and metal particles therein are mixed together, which makes it very troublesome to handle. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A printed circuit board etching waste liquid treatment device and treatment method, comprising a base plate and an annular plate, wherein a first support rod is fixedly connected to the side of the upper surface of the base plate, and a limit frame is fixedly connected to the lower surface of the annular plate, and the end of the first support rod away from the base plate is slidably connected to the inner cavity of the limit frame;

[0005] A water adding device is provided, wherein printed circuit board etching waste liquid can be added to the device, and strip-shaped impurities and large particle impurities in the printed circuit board etching waste liquid can be removed and purified. The water adding device includes a water adding tank, which is fixedly connected to the inner ring of the annular plate. A first funnel is fixedly connected to the upper surface of the water adding tank, a first elastic sheet is fixedly connected to the inner wall of the first funnel, and a buffer plate is fixedly connected to the end of the first elastic sheet. The arrangement of the first funnel, the first elastic sheet and the buffer plate can provide a certain buffering effect on the printed circuit board etching waste liquid when the printed circuit board etching waste liquid is added to the water adding tank, thereby preventing the printed circuit board etching waste liquid from directly leaking, thereby achieving an increased purification effect;

[0006] The water outlet device is provided to allow the printed circuit board etching waste liquid from which impurities have been removed to enter the inner cavity of the metal collecting device, and at the same time, to absorb and discharge the pungent odor in the printed circuit board etching waste liquid. The water outlet device includes a water outlet box, which is fixedly connected to the bottom surface of the inner cavity of the water supply tank and passes through the water supply tank;

[0007] A metal collecting device is provided, which can collect metal particles in the printed circuit board etching waste liquid after purification and impurity removal, and discharge the printed circuit board etching waste liquid that does not contain impurities and metal particles. The metal collecting device includes a servo motor, which is fixedly connected to the upper surface of the base plate, and the output end of the servo motor is fixedly connected to a rotating column, and the end of the rotating column away from the servo motor is fixedly connected to a metal collection box. The setting of the servo motor and the rotating column can apply a rotational force to the device, so that the printed circuit board etching waste liquid can rotate in the inner cavity of the metal collection box, so that the metal in the printed circuit board etching waste liquid can be fully collected.

[0008] Preferably, a second support rod is fixedly connected to the inner wall of the water adding tank, the end of the second support rod is fixedly connected to a first circular ring, the outer surface of the first circular ring is fixedly connected to a thorny ring, and the number of the thorny rings is several. The arrangement of the first circular ring and the thorny rings can collect strip-shaped impurities in the printed circuit board etching waste liquid, such as plastic filaments and plastic lines, to prevent the strip-shaped impurities from entering the metal collecting device and causing the metal collecting device to be entangled.

[0009] Preferably, a particle filtering device is fixedly connected to the inner wall of the water adding tank. By setting up the particle filtering device, large particle impurities in the printed circuit board etching waste liquid can be collected. The particle filtering device includes a third support rod, and the third support rod is fixedly connected to the inner wall of the water adding tank. The end of the third support rod is fixedly connected to a fixing ring.

[0010] Preferably, a partition is fixedly connected to the inner wall of the fixed ring, a first guide column is fixedly connected to the end of the partition, a particle filter ring is fixedly connected to the upper surface of the partition, and a plurality of slots are provided at the inner ring of the particle filter ring. Therefore, when the printed circuit board etching waste liquid flows at the inner ring of the particle filter ring, the particles can be blocked by the slots of the particle filter ring, thereby completing the collection.

[0011] Preferably, the top of the first guide column is fixedly connected to a fourth support rod, the upper surface of the fixed ring is fixedly connected to a fifth support rod, a fixed column is fixedly connected between the opposite surfaces of the fourth support rod and the fifth support rod, and the outer surface of the fixed column is rotatably connected to a rotating plate. The setting of the rotating plate can buffer the leaked printed circuit board etching waste liquid, so that when the printed circuit board etching waste liquid hits the outer surface of the rotating plate, the printed circuit board etching waste liquid becomes water mist, so that it can evenly contact the particle filter ring.

[0012] Preferably, a sixth support rod is fixedly connected to the inner wall of the water outlet box, the end of the sixth support rod is fixedly connected to a second ring, a second funnel is slidably connected to the inner ring of the second ring, a purification block is fixedly connected to the inner wall of the second funnel, and the water outlet end of the second funnel is fixedly connected to a water outlet pipe. The setting of the second ring allows the second funnel to rotate at the inner ring of the second ring, thereby adjusting the drainage angle of the water outlet pipe. The setting of the purification block can adsorb and purify irritating gases in the printed circuit board etching waste liquid.

[0013] Preferably, the outer surface of the metal collection box is fixedly connected to a seventh support rod, the end of the seventh support rod is fixedly connected to a third ring, the lower surface of the annular plate is fixedly connected to a fixed block, the lower surface of the fixed block is fixedly connected to a limiting sleeve, and the limiting sleeve is arranged on the outer surface of the third ring. The arrangement of the third ring and the limiting sleeve can make the metal collection box rotate more smoothly during the rotation process, and prevent the metal collection box from shaking violently.

[0014] Preferably, a second spring piece is fixedly connected to the inner wall of the metal collection box, and the number of the second spring pieces is several, and the ends of several of the second spring pieces are fixedly connected to magnets. The setting of the magnet can adsorb metal particles in the printed circuit board etching waste liquid. The outer surface of the metal collection box is fixedly connected to a drain pipe, and the drain pipe runs through the metal collection box. The setting of the drain pipe can discharge the printed circuit board etching waste liquid from which impurities and metal particles have been removed out of the device.

[0015] Preferably, the bottom surface of the inner cavity of the metal collection box is fixedly connected to a second guide column, the outer surface of the second guide column is fixedly connected to an eighth support rod, the end of the eighth support rod is fixedly connected to a fourth ring, the outer surface of the fourth ring is fixedly connected to an inclined plate, the top of the inclined plate is fixedly connected to a soft film, the soft film is squeezed and adapted to the outer surface of the magnet, the setting of the soft film can cause the soft film to collide with the outer surface of the magnet during the rotation of the metal collection box, so that the metal particles adsorbed in a cluster on the outer surface of the magnet are broken up and evenly attached to the outer surface of the magnet, thereby increasing the adsorption force of the magnet on the metal particles, the bottom end of the inclined plate is fixedly connected to a third spring piece, the bottom end of the third spring piece is fixedly connected to a spring, the bottom end of the spring is fixedly connected to the bottom surface of the inner cavity of the metal collection box, the setting of the third spring piece and the spring can increase the shaking of the inclined plate and the soft film during rotation.

[0016] A method for treating printed circuit board etching waste liquid comprises the following steps:

[0017] Step 1: Before processing the waste liquid generated by the etching of the printed circuit board, the waste liquid is placed in a beaker and heated with an alcohol lamp to boil the waste liquid. After the printed circuit board etching waste liquid is heated to boiling, the printed circuit board etching waste liquid in the beaker is poured into the inner cavity of the water tank from directly above the first funnel;

[0018] Step 2: After the printed circuit board etching waste liquid enters the inner cavity of the water tank, it hits the rotating plate. The water after the impact forms water mist and is evenly sprinkled on the inner ring of the particle filter ring. During the flow of water, large particles in the printed circuit board etching waste liquid are blocked in the card groove of the particle filter ring;

[0019] Step 3: The filtered printed circuit board etching waste liquid leaks onto the upper surface of the partition, and the printed circuit board etching waste liquid without strip-shaped impurities leaks into the inner cavity of the water outlet device from the gap between the partitions. The printed circuit board etching waste liquid containing strip-shaped impurities impacts the outer surface of the thorny ring, and the strip-shaped impurities are blocked;

[0020] Step 4: The printed circuit board etching waste liquid enters the inner cavity of the water outlet device and the purification block, and the irritating odor in the printed circuit board etching waste liquid is absorbed and purified. The purified printed circuit board etching waste liquid flows from the water outlet pipe into the inner cavity of the metal collection device. The direction of the water outlet pipe can be changed by rotating the second funnel;

[0021] Step 5: After the printed circuit board etching waste liquid has been initially removed and purified and enters the inner cavity of the metal collection device, connect the servo motor to the power supply and turn on the servo motor switch. The servo motor starts to work and the rotating column starts to rotate, driving the metal collection box to rotate. During the rotation, the metal particles in the printed circuit board etching waste liquid are attracted by the magnet. During the rotation, the soft film will contact the outer surface of the magnet, so that the metal particles adsorbed on the outer surface of the magnet will not accumulate in clusters, and the printed circuit board etching waste liquid without metal particles will be discharged from the drain pipe.

[0022] The present invention provides a printed circuit board etching waste liquid treatment device and treatment method, which has the following beneficial effects:

[0023] 1. The printed circuit board etching waste liquid treatment device and treatment method, by setting a water adding device, can add printed circuit board etching waste liquid to the device, and remove and purify strip impurities and large particle impurities in the printed circuit board etching waste liquid. The setting of the first funnel, the first spring and the buffer plate can provide a certain buffering effect on the printed circuit board etching waste liquid when adding the printed circuit board etching waste liquid to the water adding tank, thereby preventing the printed circuit board etching waste liquid from directly leaking, so as to achieve an increased purification effect.

[0024] 2. The printed circuit board etching waste liquid treatment device and treatment method, by setting a water outlet device, can allow the printed circuit board etching waste liquid from which impurities have been removed to enter the inner cavity of the metal collection device, and at the same time can adsorb and discharge the pungent odor in the printed circuit board etching waste liquid.

[0025] 3. The printed circuit board etching waste liquid treatment device and treatment method, by setting a metal collection device, can collect metal particles in the printed circuit board etching waste liquid after purification and impurity removal, and discharge the printed circuit board etching waste liquid that does not contain impurities and metal particles.

[0026] 4. The printed circuit board etching waste liquid treatment device and treatment method can collect strip-shaped impurities, such as plastic filaments and plastic lines, in the printed circuit board etching waste liquid through the arrangement of the first circular ring and the multi-thorn ring, and prevent the strip-shaped impurities from entering the metal collecting device and causing the metal collecting device to be entangled.

[0027] 5. The printed circuit board etching waste liquid treatment device and treatment method can buffer the leaked printed circuit board etching waste liquid through the setting of the rotating plate, so that when the printed circuit board etching waste liquid hits the outer surface of the rotating plate, the printed circuit board etching waste liquid becomes water mist, so that it can evenly contact the particle filter ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the external structure of a printed circuit board etching waste liquid treatment device of the present invention;

[0029] Figure 2 This is a schematic diagram of the disassembled structure of the present invention;

[0030] Figure 3 This is a schematic structural diagram of the water adding device of the present invention;

[0031] Figure 4 This is a schematic structural diagram of the particle filtration device of the present invention;

[0032] Figure 5 This is a schematic structural diagram of the water outlet device of the present invention;

[0033] Figure 6 Schematic diagram of the cross-sectional structure of the water outlet device of the present invention;

[0034] Figure 7 This is a schematic structural diagram of the metal collection device of the present invention;

[0035] Figure 8 Schematic diagram of the cross-sectional structure of the metal collection device of the present invention;

[0036] Figure 9 This is a schematic diagram of the partial structure of the metal collection device of the present invention;

[0037] Figure 10 Schematic diagram of the method for treating printed circuit board etching waste liquid according to the present invention.

[0038] In the figure: 1, bottom plate; 2, first support rod; 3, limit frame; 4, annular plate; 5, water adding device; 6, water outlet device; 7, metal collecting device; 8, fixed block; 9, limit sleeve; 51, water adding tank; 52, first funnel; 53, first spring piece; 54, buffer plate; 55, second support rod; 56, first circular ring; 57, multi-thorn ring; 58, particle filter device; 581, third support rod; 582, fixed ring; 583, partition; 584, first guide column; 585, particle filter ring; 586, fourth support rod; 587, first Fifth support rod; 588, fixed column; 589, rotating plate; 61, water outlet box; 62, sixth support rod; 63, second ring; 64, second funnel; 65, purification block; 66, water outlet pipe; 71, servo motor; 72, rotating column; 73, metal collection box; 74, seventh support rod; 75, third ring; 76, drain pipe; 77, second spring; 78, magnet; 79, second guide column; 710, eighth support rod; 711, fourth ring; 712, inclined plate; 713, film; 714, third spring; 715, spring. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0040] The first embodiment, as Figures 1-4 As shown, the present invention provides a technical solution: a printed circuit board etching waste liquid treatment device and treatment method, comprising a base plate 1 and an annular plate 4, wherein a first support rod 2 is fixedly connected to the side of the upper surface of the base plate 1, and a limit frame 3 is fixedly connected to the lower surface of the annular plate 4, and the end of the first support rod 2 away from the base plate 1 is slidably connected to the inner cavity of the limit frame 3;

[0041] A water adding device 5 is provided, so that printed circuit board etching waste liquid can be added to the device, and strip-shaped impurities and large particle impurities in the printed circuit board etching waste liquid can be removed and purified. The water adding device 5 includes a water adding tank 51, which is fixedly connected to the inner ring of the annular plate 4. A first funnel 52 is fixedly connected to the upper surface of the water adding tank 51, and a first elastic piece 53 is fixedly connected to the inner wall of the first funnel 52. The end of the first elastic piece 53 is fixedly connected to a buffer plate 54. The arrangement of the first funnel 52, the first elastic piece 53 and the buffer plate 54 can provide a certain buffering effect on the printed circuit board etching waste liquid when the printed circuit board etching waste liquid is added to the water adding tank 51, thereby preventing the printed circuit board etching waste liquid from directly leaking, so as to achieve an increased purification effect;

[0042] The water outlet device 6 is provided to allow the printed circuit board etching waste liquid from which impurities have been removed to enter the inner cavity of the metal collecting device 7, and at the same time, to absorb and discharge the pungent odor in the printed circuit board etching waste liquid. The water outlet device 6 includes a water outlet tank 61, which is fixedly connected to the bottom surface of the inner cavity of the water supply tank 51 and passes through the water supply tank 51.

[0043] The metal collecting device 7 is provided to collect metal particles in the printed circuit board etching waste liquid after purification and impurity removal, and discharge the printed circuit board etching waste liquid that does not contain impurities and metal particles. The metal collecting device 7 includes a servo motor 71, and the servo motor 71 is fixedly connected to the upper surface of the base plate 1. The output end of the servo motor 71 is fixedly connected to a rotating column 72, and the end of the rotating column 72 away from the servo motor 71 is fixedly connected to a metal collecting box 73. The setting of the servo motor 71 and the rotating column 72 can apply a rotational force to the device, so that the printed circuit board etching waste liquid can rotate in the inner cavity of the metal collecting box 73, so that the metal in the printed circuit board etching waste liquid can be fully collected.

[0044] A second support rod 55 is fixedly connected to the inner wall of the water adding tank 51, and a first circular ring 56 is fixedly connected to the end of the second support rod 55. The outer surface of the first circular ring 56 is fixedly connected to a thorny ring 57. The number of the thorny rings 57 is several. The setting of the first circular ring 56 and the thorny rings 57 can collect strip-shaped impurities in the printed circuit board etching waste liquid, such as plastic filaments and plastic lines, to prevent the strip-shaped impurities from entering the metal collecting device 7 and causing the metal collecting device 7 to be entangled. When in use, the filtered printed circuit board etching waste liquid leaks onto the upper surface of the partition 583, and the printed circuit board etching waste liquid that does not contain strip-shaped impurities leaks from the gap between the partitions 583 into the inner cavity of the water outlet device 6. The printed circuit board etching waste liquid containing strip-shaped impurities impacts the outer surface of the thorny ring 57, and the strip-shaped impurities are blocked.

[0045] The inner wall of the water adding tank 51 is fixedly connected with a particle filter device 58. By setting the particle filter device 58, large particle impurities in the printed circuit board etching waste liquid can be collected. The particle filter device 58 includes a third support rod 581, which is fixedly connected to the inner wall of the water adding tank 51. The end of the third support rod 581 is fixedly connected with a fixing ring 582. The inner wall of the fixing ring 582 is fixedly connected with a partition 583. The end of the partition 583 is fixedly connected with a first guide column 584. The upper surface of the partition 583 is fixedly connected with a particle filter ring 585. The inner ring of the particle filter ring 585 is provided with many slots. Therefore, when the printed circuit board etching waste liquid flows at the inner ring of the particle filter ring 585, the particles can be blocked by the slots of the particle filter ring 585, thereby completing the collection. The top of the first guide column 584 is fixedly connected with a fourth support rod 586. The upper surface of 582 is fixedly connected to a fifth support rod 587, and a fixed column 588 is fixedly connected between the opposite surfaces of the fourth support rod 586 and the fifth support rod 587. The outer surface of the fixed column 588 is rotatably connected to a rotating plate 589. The setting of the rotating plate 589 can buffer the leaked printed circuit board etching waste liquid, so that when the printed circuit board etching waste liquid hits the outer surface of the rotating plate 589, the printed circuit board etching waste liquid becomes water mist, so that it can evenly contact the particle filter ring 585. During use, the operator pours the printed circuit board etching waste liquid in the beaker from directly above the first funnel 52 into the inner cavity of the water adding tank 51. After the printed circuit board etching waste liquid enters the inner cavity of the water adding tank 51, it hits the rotating plate 589. The water after the collision forms water mist and is evenly sprinkled on the inner circle of the particle filter ring 585. During the flow of water, large particles in the printed circuit board etching waste liquid are blocked in the card groove of the particle filter ring 585.

[0046] The second embodiment, as Figure 5-Figure 6 As shown, a sixth support rod 62 is fixedly connected to the inner wall of the water outlet box 61, and a second ring 63 is fixedly connected to the end of the sixth support rod 62. A second funnel 64 is slidably connected to the inner ring of the second ring 63, and a purification block 65 is fixedly connected to the inner wall of the second funnel 64. The water outlet end of the second funnel 64 is fixedly connected to a water outlet pipe 66. The setting of the second ring 63 allows the second funnel 64 to rotate at the inner ring of the second ring 63, thereby adjusting the drainage angle of the water outlet pipe 66. The setting of the purification block 65 can adsorb and purify the irritating gas in the printed circuit board etching waste liquid. When in use, the printed circuit board etching waste liquid enters the inner cavity of the water outlet device 6 and the purification block 65, and the irritating odor in the printed circuit board etching waste liquid is adsorbed and purified. The purified printed circuit board etching waste liquid flows from the water outlet pipe 66 into the inner cavity of the metal collection device 7. The direction of the water outlet pipe 66 can be changed by rotating the second funnel 64.

[0047] The third embodiment, as Figure 7-10 As shown, the outer surface of the metal collecting box 73 is fixedly connected to the seventh support rod 74, the end of the seventh support rod 74 is fixedly connected to the third ring 75, the lower surface of the annular plate 4 is fixedly connected to the fixed block 8, the lower surface of the fixed block 8 is fixedly connected to the limiting sleeve 9, the limiting sleeve 9 is sleeved on the outer surface of the third ring 75, the setting of the third ring 75 and the limiting sleeve 9 can make the metal collecting box 73 rotate more smoothly during the rotation process, and prevent the metal collecting box 73 from shaking violently. The inner wall of the metal collecting box 73 is fixedly connected to a second elastic piece 77, the number of the second elastic pieces 77 is several, and the ends of the several second elastic pieces 77 A magnet 78 is fixedly connected, and the setting of the magnet 78 can adsorb metal particles in the printed circuit board etching waste liquid. The outer surface of the metal collection box 73 is fixedly connected to a drain pipe 76, and the drain pipe 76 runs through the metal collection box 73. The setting of the drain pipe 76 can discharge the printed circuit board etching waste liquid that has been removed of impurities and metal particles out of the device. The bottom surface of the inner cavity of the metal collection box 73 is fixedly connected to a second guide column 79, and the outer surface of the second guide column 79 is fixedly connected to an eighth support rod 710, and the end of the eighth support rod 710 is fixedly connected to a fourth ring 711, and the outer surface of the fourth ring 711 is fixedly connected to an inclined plate 712. The top of 712 is fixedly connected with a soft film 713, and the soft film 713 is squeezed and adapted with the outer surface of the magnet 78. The setting of the soft film 713 can collide with the outer surface of the magnet 78 during the rotation of the metal collection box 73, so that the metal particles adsorbed in a cluster on the outer surface of the magnet 78 are broken up and evenly attached to the outer surface of the magnet 78, thereby increasing the adsorption force of the magnet 78 on the metal particles. The bottom end of the inclined plate 712 is fixedly connected with a third elastic piece 714, and the bottom end of the third elastic piece 714 is fixedly connected with a spring 715. The bottom end of the spring 715 is fixedly connected to the bottom surface of the inner cavity of the metal collection box 73. The setting of the third elastic piece 714 and the spring 715 The arrangement can increase the shaking of the inclined plate 712 and the soft film 713 during the rotation process. When in use, after the printed circuit board etching waste liquid has been preliminarily removed from impurities and purified, it enters the inner cavity of the metal collecting device 7, and the servo motor 71 is connected to the power supply and the switch of the servo motor 71 is turned on. The servo motor 71 starts to work, and the rotating column 72 starts to rotate, driving the metal collecting box 73 to rotate. During the rotation, the metal particles in the printed circuit board etching waste liquid are attracted by the magnet 78. During the rotation, the soft film 713 will contact the outer surface of the magnet 78, so that the metal particles adsorbed on the outer surface of the magnet 78 will not accumulate in clusters, and the printed circuit board etching waste liquid without metal particles is discharged from the device through the drain pipe 76.

[0048] A method for treating printed circuit board etching waste liquid comprises the following steps:

[0049] Step 1: Before processing the waste liquid generated by printed circuit board etching, the waste liquid is placed in a beaker and heated with an alcohol lamp to boil the waste liquid. After the printed circuit board etching waste liquid is heated to boiling, the printed circuit board etching waste liquid in the beaker is poured into the inner cavity of the water tank 51 from directly above the first funnel 52;

[0050] Step 2: After the PCB etching waste liquid enters the inner cavity of the water tank 51, it hits the rotating plate 589. The water after the impact forms a mist and is evenly sprinkled on the inner ring of the particle filter ring 585. During the flow of water, large particles in the PCB etching waste liquid are blocked in the groove of the particle filter ring 585.

[0051] Step 3: The filtered printed circuit board etching waste liquid leaks onto the upper surface of the partition 583, and the printed circuit board etching waste liquid without strip-shaped impurities leaks into the inner cavity of the water outlet device 6 from the gap between the partitions 583. The printed circuit board etching waste liquid containing strip-shaped impurities impacts the outer surface of the prickly ring 57, and the strip-shaped impurities are blocked;

[0052] Step 4: The printed circuit board etching waste liquid enters the inner cavity of the water outlet device 6 and the purification block 65. The irritating odor in the printed circuit board etching waste liquid is absorbed and purified. The purified printed circuit board etching waste liquid flows from the water outlet pipe 66 into the inner cavity of the metal collection device 7. The direction of the water outlet pipe 66 can be changed by rotating the second funnel 64.

[0053] Step 5: After the printed circuit board etching waste liquid has been initially removed from the impurities and purified and enters the inner cavity of the metal collecting device 7, the servo motor 71 is connected to the power supply and the switch of the servo motor 71 is turned on. The servo motor 71 starts to work, and the rotating column 72 starts to rotate, driving the metal collecting box 73 to rotate. During the rotation, the metal particles in the printed circuit board etching waste liquid are attracted by the magnet 78. During the rotation, the soft film 713 will contact the outer surface of the magnet 78, so that the metal particles adsorbed on the outer surface of the magnet 78 will not clump together, and the printed circuit board etching waste liquid without metal particles is discharged from the device through the drain pipe 76.

[0054] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A printed circuit board etching waste liquid treatment device, comprising a base plate (1) and an annular plate (4), wherein a first support rod (2) is fixedly connected to the side of the upper surface of the base plate (1), and a limit frame (3) is fixedly connected to the lower surface of the annular plate (4), and an end of the first support rod (2) away from the base plate (1) is slidably connected to the inner cavity of the limit frame (3), characterized in that ； The printed circuit board etching waste liquid treatment device also includes: A water adding device (5), the water adding device (5) comprising a water adding tank (51), the water adding tank (51) being fixedly connected to the inner ring of the annular plate (4), a first funnel (52) being fixedly connected to the upper surface of the water adding tank (51), a first elastic piece (53) being fixedly connected to the inner wall of the first funnel (52), and a buffer plate (54) being fixedly connected to the end of the first elastic piece (53); A water outlet device (6), the water outlet device (6) comprising a water outlet box (61), the water outlet box (61) being fixedly connected to the bottom surface of the inner cavity of the water supply box (51), and the water outlet box (61) penetrating the water supply box (51); A metal collecting device (7), the metal collecting device (7) comprising a servo motor (71), the servo motor (71) being fixedly connected to the upper surface of the base plate (1), the output end of the servo motor (71) being fixedly connected to a rotating column (72), and the end of the rotating column (72) away from the servo motor (71) being fixedly connected to a metal collecting box (73); A second support rod (55) is fixedly connected to the inner wall of the water filling tank (51), a first circular ring (56) is fixedly connected to the end of the second support rod (55), and a thorny ring (57) is fixedly connected to the outer surface of the first circular ring (56), and the number of the thorny rings (57) is several; A particle filter device (58) is fixedly connected to the inner wall of the water filling tank (51), and the particle filter device (58) comprises a third support rod (581). The third support rod (581) is fixedly connected to the inner wall of the water filling tank (51), and a fixing ring (582) is fixedly connected to the end of the third support rod (581); A partition (583) is fixedly connected to the inner wall of the fixed ring (582), a first guide column (584) is fixedly connected to the end of the partition (583), and a particle filter ring (585) is fixedly connected to the upper surface of the partition (583); A second spring piece (77) is fixedly connected to the inner wall of the metal collection box (73), the number of the second spring pieces (77) is several, and the ends of the several second spring pieces (77) are fixedly connected to magnets (78), and a drainage pipe (76) is fixedly connected to the outer surface of the metal collection box (73), and the drainage pipe (76) passes through the metal collection box (73).

2. A printed circuit board etching waste liquid treatment device according to claim 1, characterized in that: The top end of the first guide column (584) is fixedly connected to a fourth support rod (586), the upper surface of the fixing ring (582) is fixedly connected to a fifth support rod (587), a fixing column (588) is fixedly connected between the opposite surfaces of the fourth support rod (586) and the fifth support rod (587), and the outer surface of the fixing column (588) is rotatably connected to a rotating plate (589).

3. A printed circuit board etching waste liquid treatment device according to claim 1, characterized in that: A sixth support rod (62) is fixedly connected to the inner wall of the water outlet box (61), a second ring (63) is fixedly connected to the end of the sixth support rod (62), a second funnel (64) is slidably connected to the inner ring of the second ring (63), a purification block (65) is fixedly connected to the inner wall of the second funnel (64), and a water outlet end of the second funnel (64) is fixedly connected to a water outlet pipe (66).

4. A printed circuit board etching waste liquid treatment device according to claim 1, characterized in that: The outer surface of the metal collecting box (73) is fixedly connected to a seventh support rod (74), the end of the seventh support rod (74) is fixedly connected to a third circular ring (75), the lower surface of the annular plate (4) is fixedly connected to a fixed block (8), the lower surface of the fixed block (8) is fixedly connected to a limiting sleeve (9), and the limiting sleeve (9) is sleeved on the outer surface of the third circular ring (75).

5. The printed circuit board etching waste liquid treatment device according to claim 1, characterized in that: The bottom surface of the inner cavity of the metal collecting box (73) is fixedly connected to a second guide column (79), the outer surface of the second guide column (79) is fixedly connected to an eighth support rod (710), the end of the eighth support rod (710) is fixedly connected to a fourth ring (711), the outer surface of the fourth ring (711) is fixedly connected to an inclined plate (712), the top end of the inclined plate (712) is fixedly connected to a soft film (713), and the soft film (713) is squeezed and adapted to the outer surface of the magnet (78).

6. A method for treating printed circuit board etching waste liquid, which is realized based on the printed circuit board etching waste liquid treatment device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Before processing the waste liquid generated by the etching of the printed circuit board, the waste liquid is placed in a beaker and heated with an alcohol lamp to boil the waste liquid. After the printed circuit board etching waste liquid is heated to boiling, the printed circuit board etching waste liquid in the beaker is poured from directly above the first funnel (52) into the inner cavity of the water tank (51); Step 2: After the printed circuit board etching waste liquid enters the inner cavity of the water tank (51), it hits the rotating plate (589), and the water after the impact forms water mist, which is evenly sprinkled on the inner ring of the particle filter ring (585). During the flow of water, large particles in the printed circuit board etching waste liquid are blocked in the card groove of the particle filter ring (585); Step 3: The filtered printed circuit board etching waste liquid leaks onto the upper surface of the partition (583), and the printed circuit board etching waste liquid without strip-shaped impurities leaks from the gap between the partitions (583) into the inner cavity of the water outlet device (6). The printed circuit board etching waste liquid containing strip-shaped impurities impacts the outer surface of the thorny ring (57), and the strip-shaped impurities are blocked; Step 4: The printed circuit board etching waste liquid enters the inner cavity of the water outlet device (6) and the purification block (65), the irritating odor in the printed circuit board etching waste liquid is absorbed and purified, and the purified printed circuit board etching waste liquid flows from the water outlet pipe (66) into the inner cavity of the metal collecting device (7), and the direction of the water outlet pipe (66) can be changed by rotating the second funnel (64); Step 5: After the printed circuit board etching waste liquid has been initially cleaned and purified and enters the inner cavity of the metal collecting device (7), the servo motor (71) is connected to the power supply and the switch of the servo motor (71) is turned on. The servo motor (71) starts to work, and the rotating column (72) starts to rotate, driving the metal collecting box (73) to rotate. During the rotation, the metal particles in the printed circuit board etching waste liquid are attracted by the magnet (78). During the rotation, the soft film (713) will contact the outer surface of the magnet (78), so that the metal particles adsorbed on the outer surface of the magnet (78) do not accumulate in agglomerates, and the printed circuit board etching waste liquid without metal particles is discharged from the device through the drain pipe (76).

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