Sewage treatment equipment and process for tinning of LED (light-emitting diode) pin frame

Abstract

The invention discloses sewage treatment equipment and process for tinning of an LED pin frame, and relates to the technical field of sewage treatment. In the dosing flocculation process, flocculated sewage is generally and directly guided into filtering equipment, a solid-liquid mixture is not pre-separated, the workload of the filtering equipment is heavy, and the sewage treatment efficiency is influenced, and through cooperation of a conical cover and a through groove disc, in the process of stirring the sewage by utilizing a stirring mechanism and mixing a medicament with the sewage, the sewage is stirred by utilizing the stirring mechanism, so that the sewage treatment efficiency is greatly improved. By means of rotation of the sewage under stirring, floccules in the sewage are concentrated on the outer side and cannot penetrate through the through grooves of the through groove disc, primary solid-liquid separation is conducted on the sewage while flocculation is conducted, the amount of sewage entering the filtering equipment is reduced, the content of the floccules in the sewage guided out by the water outlet pipe is increased, and the situation that the floccules cannot penetrate through the through grooves of the through groove disc after dosing flocculation is avoided. A large amount of sewage and floccules enter filtering equipment at the same time, so that the workload of the filtering equipment is large, and the sewage treatment efficiency is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to a sewage treatment device and process for tin plating of LED pin frames. Background Art

[0002] The sewage generated during the tin plating process of LED pin frames contains heavy metal tin and other pollutants, and requires special sewage treatment equipment for treatment. The tin plating sewage treatment equipment is a device for treating wastewater containing heavy metal tin and other pollutants generated during the tin plating process. Generally, a flocculant is added to the wastewater after neutralization and precipitation to make the fine precipitate particles coagulate into larger flocs for easy separation. Usually, according to the water quality, water volume and treatment requirements of the tin plating wastewater, appropriate sewage treatment equipment is selected for combined use. In order to ensure the normal operation and treatment effect of the equipment, corresponding monitoring equipment, such as pH meters, on-line heavy metal monitors, etc., and an automated control system are also required to realize real-time monitoring and automatic adjustment of the sewage treatment process; During the process of adding medicine and coagulating, the coagulated sewage is usually directly introduced into the filtration equipment without pre-separating the solid-liquid mixture, resulting in a heavy working burden on the filtration equipment and affecting the sewage treatment efficiency at the same time. Summary of the Invention

[0003] To achieve the above objectives, the present invention is realized through the following technical solutions: A sewage treatment device for tin plating of LED pin frames, comprising: A tank body, a base is fixedly installed at the bottom of the tank body, and a motor is fixedly installed at the central position of the bottom of the tank body, and the output end of the motor penetrates through the tank body and extends into its interior; A medicine guiding mechanism, the medicine guiding mechanism is installed at the top of the tank body, and the medicine guiding mechanism is used for mixing the medicine with the sewage; A stirring mechanism, the stirring mechanism is installed inside the tank body, and the stirring mechanism is used for stirring and rotating the sewage in the tank body; A water inlet pipe is fixedly installed at the top of the outer side of the tank body, and a first water outlet pipe and a second water outlet pipe are fixedly installed at the bottom of the outer side of the tank body. A conical cover is fixedly installed at the bottom of the inner wall of the tank body. The first water outlet pipe is located above the conical cover, and the second water outlet pipe is located below the conical cover. The outer diameter of the conical cover gradually increases from top to bottom. By cooperating the conical cover with the through groove disc, during the process of stirring sewage by the stirring mechanism to mix the medicine and the sewage, the rotation of the sewage under stirring makes the flocs in the sewage concentrate on the outside and unable to pass through the through grooves of the through groove disc. While coagulating the flocs, the sewage is preliminarily separated from solid to liquid, reducing the amount of sewage entering the filtering device, increasing the content of flocs in the sewage derived from the first water outlet pipe, and avoiding a large amount of sewage and flocs entering the filtering device simultaneously after adding medicine for coagulation, which may lead to a large workload of the filtering device and affect the efficiency of sewage treatment. A through groove disc is fixedly installed at the top of the conical cover. A through groove is opened at the central position of the top of the through groove disc, and the top of the through groove disc is a conical surface protruding from the central position.

[0004] Preferably, a top cover disc is fixedly installed at the top of the inner wall of the tank body. The top cover disc is located below the water inlet pipe, and one side of the top cover disc away from the tank body is inclined upward. By cooperating the top cover disc with the medicine guiding mechanism, during the process of introducing sewage, the sewage is restricted, and under the guidance of the top cover disc, the sewage directly impacts the medicine guiding mechanism. Using the pressure when the medicine and the sewage are introduced, they impact each other, improving the mixing effect of the sewage and the medicine, and enabling the medicine and the sewage to react fully. The top cover disc is located below the medicine guiding mechanism.

[0005] Preferably, the stirring mechanism includes a transmission shaft. The bottom end of the transmission shaft is fixedly connected with the output end of the motor through a coupling, and the outer side of the transmission shaft is rotationally adapted to the inner wall of the through groove disc. A connecting disc is fixedly installed at the top of the transmission shaft, and a support plate is fixedly installed at the top of the connecting disc. The support plates are evenly installed along the center position of the connecting disc. Stirring plates are fixedly installed on the outer sides of the support plates, and spiral stirring plates are fixedly installed on the opposite surfaces of the support plates. By cooperating the stirring plates with the baffle plates, during the rotation process, the sewage is stirred, improving the mixing effect of the medicine and the sewage, and enabling the heavy metals in the sewage to react fully with the medicine. At the same time, under stirring, the flocs in the sewage have a large mass and concentrate on the outside. At the same time, the arc bending of the stirring plate away from the support plate cooperates with the baffle plate, reducing the stirring force on the outside sewage while using the rotation of the baffle plate to block the flocs at the central position from falling, so that they are driven by the stirring plate to provide the concentration effect of the flocs. One end of the stirring plate away from the support plate is arc-bent, and baffle plates are fixedly installed at the bottoms of the stirring plates. One end of the baffle plate away from the stirring plate is inclined downward, and the baffle plate is located directly above the through grooves of the through groove disc.

[0006] Preferably, the medicine guiding mechanism includes a top cover fixedly installed on the top of the tank body. A medicine guiding pipe is fixedly installed at the center of the top of the top cover. A joint is fixedly installed at the top of the medicine guiding pipe. An exhaust pipe is fixedly installed at the top of the top cover. The bottom end of the exhaust pipe penetrates through the top cover and extends to its bottom, and the top end of the exhaust pipe is arc-shaped and zigzag. The bottom end of the medicine guiding pipe penetrates through the top cover and extends to the bottom, and a medicine collecting bin is fixedly installed at the bottom end of the medicine guiding pipe. Outer shielding covers are fixedly installed on both the upper and lower sides of the medicine collecting bin. Through the cooperation of the outer shielding cover and the inner guiding plate, when sewage is introduced, the outer shielding cover makes the sewage concentrate towards the central position during the impact of the sewage. At the same time, during the concentrating process, the inner guiding plate guides the sewage towards the hole cylinder position, ensuring sufficient contact between the sewage and the medicine. One end of the outer shielding cover away from the medicine collecting bin is inclined outwards.

[0007] Preferably, an inner guiding plate is fixedly installed between the outer shielding covers. The inner guiding plates are evenly installed along the center position of the outer shielding cover, and the inner guiding plates are inclined between the outer shielding covers. A connecting pipe is fixedly installed on the outer side of the medicine collecting bin. The connecting pipes are evenly installed along the center position of the medicine collecting bin and are located between the inner guiding plates. A fixed disk is fixedly installed at one end of the connecting pipe away from the medicine collecting bin. A hole cylinder is slidably installed on the outer side of the connecting pipe. A spring is installed between the hole cylinder and the fixed disk. Through the cooperation of the spring and the hole cylinder, during the process of discharging the medicine, due to the pressure of the medicine delivery, the hole cylinder compresses the spring, and different numbers of holes are opened according to different pressures. At the same time, the deformed spring generates an elastic force, driving the hole cylinder to compress the medicine, cooperating with the medicine delivery pressure, increasing the pressure when the medicine is discharged from the holes, increasing the splashing range of the medicine, and improving the mixing effect with the sewage. And holes are evenly formed on the surface of the hole cylinder.

[0008] A sewage treatment process for tin plating of LED pin frames consists of the following steps: S1. Sewage collection: Separate the sewage generated from the tin plating process from other sewage, and store the tin plating sewage in a separate container for collection. S2. Adding medicine for coagulation: Since there are a large number of heavy metal pollutants in the tin plating sewage, during the treatment process, a corresponding coagulant needs to be added to the sewage so that the heavy metals in the sewage react with the medicine to form flocs. S3. Solid-liquid separation: After flocs appear in the sewage after adding the medicine, the flocs in the sewage are separated from the sewage through a filtration separation device. S4. Aeration purification: The sewage after removing heavy metals is introduced into an aeration tank. By aerating the sewage, the metabolic activities of microorganisms are promoted, thereby degrading the organic matter in the sewage and removing pollutants such as ammonia nitrogen.

[0009] The present invention provides a sewage treatment device for tin plating of LED pin frames. It has the following beneficial effects: 1. For the sewage treatment equipment for tin plating of LED pin frames, through the cooperation of the conical cover and the through groove plate, during the process of stirring sewage by the stirring mechanism to mix the medicament with the sewage, by the rotation of the sewage under stirring, the flocs in the sewage are concentrated on the outside and cannot pass through the through grooves of the through groove plate. While coagulating the flocs, preliminary solid-liquid separation of the sewage is carried out, reducing the amount of sewage entering the filtration equipment, increasing the content of sewage flocs led out by one of the outlet pipes, and avoiding a large amount of sewage and flocs entering the filtration equipment simultaneously after adding the medicament for coagulation, which may lead to a large workload of the filtration equipment and affect the efficiency of sewage treatment.

[0010] 2. For the sewage treatment equipment for tin plating of LED pin frames, through the cooperation of the top cover plate and the medicament guiding mechanism, during the process of introducing sewage, the sewage is restricted, and under the guidance of the top cover plate, the sewage directly impacts the medicament guiding mechanism. By the pressure when the medicament and the sewage are introduced and the mutual impact, the mixing effect of the sewage and the medicament is improved, and the medicament and the sewage fully react.

[0011] 3. For the sewage treatment equipment for tin plating of LED pin frames, through the cooperation of the stirring plate and the baffle plate, during the rotation process, the sewage is stirred to improve the mixing effect of the medicament and the sewage, enabling the heavy metals in the sewage to fully react with the medicament. At the same time, under stirring, the flocs in the sewage have a large mass and are concentrated on the outside. At the same time, the arc bending of the stirring plate away from the support plate cooperates with the baffle plate. While reducing the stirring force on the outside sewage, the rotation of the baffle plate is used to block the flocs at the central position from falling, enabling them to be driven by the stirring plate to provide a concentrated effect for the flocs.

[0012] 4. For the sewage treatment equipment for tin plating of LED pin frames, through the cooperation of the outer baffle and the inner guide plate, during the process of introducing sewage, when the sewage impacts, the outer baffle makes the sewage concentrate towards the central position. At the same time, during the concentration process, the inner guide plate guides the sewage towards the hole cylinder position to ensure full contact between the sewage and the medicament.

[0013] 5. For the sewage treatment equipment for tin plating of LED pin frames, through the cooperation of the spring and the hole cylinder, during the process of discharging the medicament, due to the pressure of the medicament delivery, the hole cylinder compresses the spring. According to different pressures, different numbers of holes are opened. At the same time, the deformed spring generates elastic force to drive the hole cylinder to compress the medicament, cooperating with the pressure of the medicament delivery to increase the pressure when the medicament is discharged from the holes, increasing the range of the medicament splash and improving the mixing effect with the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a sewage treatment equipment for tin plating of LED pin frames according to the present invention; Figure 2 is a sectional view of the structure of a sewage treatment equipment for tin plating of LED pin frames according to the present invention; Figure 3Partial structural dissection diagram of a sewage treatment device for tin plating of LED pin frames according to the present invention; Figure 4 Partial structural side view of a sewage treatment device for tin plating of LED pin frames according to the present invention; Figure 5 Partial structural schematic diagram of the stirring mechanism according to the present invention; Figure 6 Partial structural bottom view of the stirring mechanism according to the present invention; Figure 7 Structural schematic diagram of the medicine guiding mechanism according to the present invention; Figure 8 Structural dissection diagram of the medicine guiding mechanism according to the present invention; Figure 9 Partial structural dissection diagram of the medicine guiding mechanism according to the present invention; Figure 10 Schematic diagram of the sewage treatment process according to the present invention.

[0015] In the figure: 1, base; 2, tank body; 3, medicine guiding mechanism; 4, motor; 5, stirring mechanism; 6, water inlet pipe; 7, top cover plate; 8, first water outlet pipe; 9, second water outlet pipe; 10, conical cover; 11, through groove plate; 301, top cover; 302, exhaust pipe; 303, joint; 304, medicine guiding pipe; 305, outer baffle; 306, inner guide plate; 307, hole cylinder; 308, medicine collecting bin; 309, connecting pipe; 310, spring; 311, fixed plate; 51, transmission shaft; 52, stirring plate; 53, spiral stirring plate; 54, support plate; 55, baffle plate; 56, connecting plate. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] The first embodiment is as Figures 1 to 4 shown, and the present invention provides a technical solution: A sewage treatment device for tin plating of LED pin frames, comprising: A tank body 2, the bottom of the tank body 2 is fixedly installed with a base 1, and the central position of the bottom of the tank body 2 is fixedly installed with a motor 4, and the output end of the motor 4 penetrates through the tank body 2 and extends into its interior; A medicine guiding mechanism 3, the medicine guiding mechanism 3 is installed on the top of the tank body 2, and the medicine guiding mechanism 3 is used to mix the medicine with the sewage; The stirring mechanism 5 is installed inside the tank body 2, and the stirring mechanism 5 is used to stir and rotate the sewage in the tank body 2; A water inlet pipe 6 is fixedly installed at the top outside the tank body 2, and a first outlet pipe 8 and a second outlet pipe 9 are fixedly installed at the bottom outside the tank body 2. During the process of sewage introduction, the top cover plate 7 restricts the sewage introduced from the water inlet pipe 6, and utilizes the inclination of the top cover plate 7 to make the sewage impact the medicine guiding mechanism 3. In cooperation with the medicine guiding mechanism 3, the sewage is mixed with the medicine under the impact, so that the heavy metal substances in the sewage contact the medicine, and the heavy metal substances form flocculants. A conical cover 10 is fixedly installed at the bottom of the inner wall of the tank body 2. The first outlet pipe 8 is located above the conical cover 10, and the second outlet pipe 9 is located below the conical cover 10. The outer diameter of the conical cover 10 gradually increases from top to bottom, and a through groove plate 11 is fixedly installed at the top of the conical cover 10. A through groove is opened at the center position of the top of the through groove plate 11. During the continuous introduction of sewage, the flocculants flow downward through the gap between the medicine guiding mechanism 3 and the top cover plate 7 into the space between the top cover plate 7 and the conical cover 10. Through the conical cover 10 and the through groove plate 11, in cooperation with the stirring of the sewage by the stirring mechanism 5, when the stirring mechanism 5 drives the sewage to rotate, the flocculants in the sewage have a larger self-mass and are concentrated in the outer area under the action of centrifugal force during rotation, so that the sewage without flocculants inside passes through the through groove of the through groove plate 11 and is introduced into the inside of the conical cover 10 and is led out by the second outlet pipe 9 and enters the aeration tank. The sewage containing a large amount of flocculants is led out by the first outlet pipe 8 and enters the solid-liquid separation equipment for filtration, and the top of the through groove plate 11 is a conical surface with a central protrusion.

[0018] A top cover plate 7 is fixedly installed at the top of the inner wall of the tank body 2. The top cover plate 7 is located below the water inlet pipe 6, and the side of the top cover plate 7 away from the tank body 2 is inclined upward. The top cover plate 7 is located below the medicine guiding mechanism 3.

[0019] Second embodiment, on the basis of the first embodiment, please refer to Figures 5 to 6As shown, the stirring mechanism 5 includes a transmission shaft 51, the bottom end of the transmission shaft 51 is fixedly connected to the output end of the motor 4 through a coupling, and the outer side of the transmission shaft 51 is rotatably adapted to the inner wall of the through-groove plate 11, and a connecting plate 56 is fixedly installed on the top of the transmission shaft 51. Through the connection between the transmission shaft 51 and the motor 4, the transmission shaft 51 drives the connecting plate 56 to rotate, and the connecting plate 56 drives the supporting plate 54 to rotate, so that the supporting plate 54 drives the stirring plate 52 and the spiral stirring plate 53 to rotate along the axial position of the transmission shaft 51, and the top of the connecting plate 56 is fixedly installed with a supporting plate 54, and the supporting plate 54 is evenly installed along the center position of the connecting plate 56, and the outer side of the supporting plate 54 A stirring plate 52 is fixedly installed on each side, and a spiral stirring plate 53 is fixedly installed on the opposite surface of the support plate 54. The end of the stirring plate 52 away from the support plate 54 is curved. During the rotation, the sewage is driven to rotate by the rotation of the stirring plate 52 and the spiral stirring plate 53. During the rotation, the flocs in the sewage are concentrated on the outside, and the sewage without flocs on the inside directly passes through the through groove plate 11, is discharged from the outlet pipe 29, and directly enters the aeration tank. A baffle plate 55 is fixedly installed on the bottom of the stirring plate 52, and the end of the baffle plate 55 away from the stirring plate 52 is inclined downward, and the baffle plate 55 is located directly above the through groove of the through groove plate 11.

[0020] The third embodiment is based on the first and second embodiments. Figures 7 to 10 As shown, the drug guiding mechanism 3 includes a top cover 301, which is fixedly mounted on the top of the tank body 2, and a drug guiding tube 304 is fixedly mounted at the center of the top of the top cover 301, a joint 303 is fixedly mounted on the top of the drug guiding tube 304, and an exhaust pipe 302 is fixedly mounted on the top of the top cover 301. The bottom end of the exhaust pipe 302 passes through the top cover 301 and extends to the bottom thereof, and the top end of the exhaust pipe 302 is curved and tortuous. Driven by the liquid pump, the medicine enters the drug guiding tube through the joint 303. 304, and under the guidance of the drug guiding tube 304, it enters the drug collecting bin 308 for storage, and is led out by the connecting tube 309 under the pressure driven by the liquid pump, so that the medicine impacts the hole tube 307, and the medicine is led out from the hole of the hole tube 307. The bottom end of the drug guiding tube 304 passes through the top cover 301 and extends to the bottom, and the bottom end of the drug guiding tube 304 is fixedly installed with the drug collecting bin 308, and the outer blocking cover 305 is fixedly installed on the upper and lower sides of the drug collecting bin 308, and the end of the outer blocking cover 305 away from the drug collecting bin 308 is tilted outward.

[0021] An inner guide plate 306 is fixedly installed between the outer shields 305. The inner guide plates 306 are evenly installed along the center position of the outer shields 305, and the inner guide plates 306 are inclined between the outer shields 305. A connecting pipe 309 is fixedly installed on the outside of the medicine collecting bin 308. The connecting pipes 309 are evenly installed along the center position of the medicine collecting bin 308 and are located between the inner guide plates 306. According to the pressure of the medicine, the hole cylinder 307 is driven, so that the hole cylinder 307 compresses the spring 310, the hole cylinder 307 slides, more holes are opened, and the export of the medicine is accelerated. At the same time, during the mixing process of the medicine and the sewage, through the cooperation of the outer shield 305 and the inner guide plate 306, the sewage introduced by the water inlet pipe 6 is guided towards the position of the hole cylinder 307, so that the sewage and the medicine are fully contacted. One end of the connecting pipe 309 away from the medicine collecting bin 308 is fixedly installed with a fixed disk 311, and a hole cylinder 307 is slidably installed on the outside of the connecting pipe 309. A spring 310 is installed between the hole cylinder 307 and the fixed disk 311, and holes are evenly opened on the surface of the hole cylinder 307.

[0022] A sewage treatment process for tin plating of LED pin frames consists of the following steps: S1. Sewage collection: Separate the sewage generated by the tin plating process from other sewage, and collect and store the tin plating sewage in a separate container. S2. Adding medicine for coagulation: Since there are a large number of heavy metal pollutants in the tin plating sewage, during the treatment process, corresponding coagulants need to be added to the sewage so that the heavy metals in the sewage react with the medicine to form flocs. S3. Solid-liquid separation: After flocs appear in the sewage after adding medicine, the flocs in the sewage are separated from the sewage through a filtration separation device. S4. Aeration purification: The sewage after removing heavy metals is introduced into an aeration tank. By aerating the sewage, the metabolic activities of microorganisms are promoted, thereby degrading the organic matter in the sewage and removing pollutants such as ammonia nitrogen.

[0023] During use, the sewage is introduced into a pipeline and connected to the water inlet pipe 6, the medicine pipeline is connected to the medicine guiding mechanism 3, the aeration tank pipeline is connected to the second outlet pipe 9, the pipeline of the solid-liquid separation device is connected to the first outlet pipe 8, the sewage is introduced into the tank body 2 through a liquid pump, and at the same time, the medicine is introduced into the medicine guiding mechanism 3 through a liquid pump, and the motor 4 is started, so that the motor 4 drives the stirring mechanism 5 to rotate, and the sewage in the tank body 2 is rotated inside.

[0024] During the process of sewage introduction, the sewage introduced by the water inlet pipe 6 is restricted by the top cover plate 7. By utilizing the inclination of the top cover plate 7, the sewage is impacted towards the medicine guiding mechanism 3. In cooperation with the medicine guiding mechanism 3, the sewage is mixed with the medicine under the impact, enabling the heavy metal substances in the sewage to come into contact with the medicine, causing the heavy metal substances to form floccules. During the continuous introduction of sewage, the floccules flow downward along with the sewage through the gap between the medicine guiding mechanism 3 and the top cover plate 7, and enter the space between the top cover plate 7 and the conical cover 10. Through the cooperation of the conical cover 10 and the through groove plate 11 and the agitation of the sewage by the stirring mechanism 5, when the stirring mechanism 5 drives the sewage to rotate, the floccules in the sewage have a relatively large self-weight and, under the action of the centrifugal force during rotation, concentrate in the outer area, enabling the sewage without floccules inside to pass through the through grooves of the through groove plate 11, be introduced into the interior of the conical cover 10, and be discharged through the second outlet pipe 9 and enter the aeration tank. The sewage containing a large amount of floccules is discharged through the first outlet pipe 8 and enters the solid-liquid separation equipment for filtration.

[0025] When adding the medicine, the medicine is driven by the liquid pump to enter the medicine guiding pipe 304 through the joint 303, and under the guidance of the medicine guiding pipe 304, it enters the medicine collecting bin 308 for storage. Then, under the pressure driven by the liquid pump, it is discharged through the connecting pipe 309, causing the medicine to impact the hole cylinder 307, and the medicine is discharged through the holes of the hole cylinder 307. According to the pressure of the medicine, the hole cylinder 307 is driven to compress the spring 310, causing the hole cylinder 307 to slide and open more holes to accelerate the discharge of the medicine. At the same time, during the mixing process of the medicine and the sewage, through the cooperation of the outer baffle 305 and the inner guide plate 306, the sewage introduced by the water inlet pipe 6 is guided towards the position of the hole cylinder 307, enabling the sewage and the medicine to come into full contact.

[0026] In the stirring mechanism 5, through the connection between the transmission shaft 51 and the motor 4, the transmission shaft 51 drives the connection disk 56 to rotate, the connection disk 56 drives the support plate 54 to rotate, and the support plate 54 drives the stirring plate 52 and the spiral stirring plate 53 to rotate along the axis of the transmission shaft 51. During the rotation process, through the rotation of the stirring plate 52 and the spiral stirring plate 53, the sewage is driven to rotate. During the rotation process, the floccules in the sewage concentrate on the outside, enabling the sewage without floccules inside to directly pass through the through groove plate 11 and be discharged through the second outlet pipe 9 and directly enter the aeration tank.

[0027] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment equipment for tinning LED lead frame, characterized in that: include: A tank body (2), wherein a base (1) is fixedly mounted on the bottom of the tank body (2), and a motor (4) is fixedly mounted at the center of the bottom of the tank body (2), and an output end of the motor (4) passes through the tank body (2) and extends into the interior thereof; A medicine guiding mechanism (3), the medicine guiding mechanism (3) being installed on the top of the tank body (2), and the medicine guiding mechanism (3) being used to mix the medicine with the sewage; A stirring mechanism (5), the stirring mechanism (5) being installed inside the tank body (2), and the stirring mechanism (5) being used to stir and rotate the sewage in the tank body (2); A water inlet pipe (6) is fixedly mounted on the top of the outer side of the tank body (2), and a water outlet pipe 1 (8) and a water outlet pipe 2 (9) are fixedly mounted on the bottom of the outer side of the tank body (2). A conical cover (10) is fixedly mounted on the bottom of the inner wall of the tank body (2), the water outlet pipe 1 (8) is located above the conical cover (10), and the water outlet pipe 2 (9) is located below the conical cover (10). The outer diameter of the conical cover (10) gradually increases from top to bottom, and a through-groove plate (11) is fixedly mounted on the top of the conical cover (10), a through-groove is provided at the center position of the top of the through-groove plate (11), and the top of the through-groove plate (11) is a conical surface protruding at the center position.

2. The sewage treatment equipment for tin-plated LED lead frames according to claim 1, characterized in that: A top cover plate (7) is fixedly mounted on the top of the inner wall of the tank body (2), the top cover plate (7) is located below the water inlet pipe (6), and the side of the top cover plate (7) away from the tank body (2) is tilted upward, and the top cover plate (7) is located below the medicine guiding mechanism (3).

3. The sewage treatment equipment for tin-plated LED lead frames according to claim 2, characterized in that: The stirring mechanism (5) comprises a transmission shaft (51), the bottom end of the transmission shaft (51) being fixedly connected to the output end of the motor (4) via a coupling, and the outer side of the transmission shaft (51) being rotationally adapted to the inner wall of the through-groove plate (11), and a connecting plate (56) being fixedly mounted on the top of the transmission shaft (51).

4. The sewage treatment equipment for tin-plated LED lead frames according to claim 3, characterized in that: A support plate (54) is fixedly mounted on the top of the connection plate (56); the support plates (54) are evenly mounted along the center of the connection plate (56); stirring plates (52) are fixedly mounted on the outer sides of the support plates (54); and spiral stirring plates (53) are fixedly mounted on the opposite sides of the support plates (54).

5. The sewage treatment equipment for tin-plated LED lead frames according to claim 4, characterized in that: One end of the stirring plate (52) away from the support plate (54) is curved in an arc shape, and a baffle plate (55) is fixedly mounted at the bottom of the stirring plate (52). One end of the baffle plate (55) away from the stirring plate (52) is inclined downward, and the baffle plate (55) is located directly above the through slot of the through slot plate (11).

6. The sewage treatment equipment for tin-plated LED lead frames according to claim 5, characterized in that: The drug guiding mechanism (3) comprises a top cover (301), the top cover (301) being fixedly mounted on the top of the tank body (2), a drug guiding tube (304) being fixedly mounted at the center position of the top of the top cover (301), a joint (303) being fixedly mounted on the top of the drug guiding tube (304), and an exhaust pipe (302) being fixedly mounted on the top of the top cover (301).

7. The sewage treatment equipment for tin-plated LED lead frames according to claim 6, characterized in that: The bottom end of the exhaust pipe (302) passes through the top cover (301) and extends to the bottom thereof, and the top end of the exhaust pipe (302) is curved and tortuous, the bottom end of the drug guiding tube (304) passes through the top cover (301) and extends to the bottom, and a drug collecting bin (308) is fixedly mounted on the bottom end of the drug guiding tube (304), and outer baffles (305) are fixedly mounted on both upper and lower sides of the drug collecting bin (308), and one end of the outer baffle (305) away from the drug collecting bin (308) is tilted outwards.

8. The wastewater treatment equipment for tin-plated LED lead frames according to claim 7, characterized in that: An inner guide plate (306) is fixedly installed between the outer baffles (305), the inner guide plate (306) is evenly installed along the center of the outer baffles (305), and the inner guide plate (306) is tilted between the outer baffles (305), and a connecting pipe (309) is fixedly installed on the outside of the medicine collecting bin (308), the connecting pipe (309) is evenly installed along the center of the medicine collecting bin (308) and is located between the inner guide plates (306).

9. The sewage treatment equipment for tin-plated LED lead frames according to claim 8, characterized in that: A fixed disk (311) is fixedly mounted on one end of the connecting tube (309) away from the medicine collecting bin (308), and a hole cylinder (307) is slidably mounted on the outer side of the connecting tube (309), a spring (310) is mounted between the hole cylinder (307) and the fixed disk (311), and holes are evenly formed on the surface of the hole cylinder (307).

10. A wastewater treatment process for tinning of LED lead frames, characterized in that: It consists of the following steps: S1. Wastewater collection: separate the wastewater generated by the tinning process from other wastewater, so that the tinning wastewater can be collected and stored in a separate container; S2, adding chemicals to flocculate. Since there are a lot of heavy metal pollutants in the tin-plating wastewater, it is necessary to add corresponding flocculants to the wastewater during the treatment process so that the heavy metals in the wastewater react with the chemicals to form flocs; S3, solid-liquid separation, after floccules appear in the sewage after adding drugs, the floccules in the sewage are separated from the sewage through filtering and separation equipment; S4. Aeration purification: the sewage after heavy metal removal is passed into the aeration tank. Aeration treatment of the sewage promotes the metabolic activity of microorganisms, thereby degrading organic matter in the sewage and removing pollutants such as ammonia nitrogen.

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