Electroplating wastewater treatment tank and electroplating wastewater treatment equipment

Abstract

The invention relates to the technical field of electroplating equipment, in particular to an electroplating wastewater treatment box and electroplating wastewater treatment device.The electroplating wastewater treatment box comprises a reaction barrel, a hollow column is arranged in an inner cavity of the reaction barrel, a spiral filtering assembly is fixed to the surface of the hollow column, the section of a filtering plate is in an inclined 7 shape, and filtering holes are formed in the surface of the filtering plate; the collecting plate is fixed outside the lower end of the hollow column and is fixedly connected with the lower end of the filtering assembly; the filtering device has the beneficial effects that the spiral filtering assembly is fixed to the outer side of the hollow column, the section of the filtering assembly is in a flat square shape, the filtering plate can filter impurities, the impurities are left on the surface of the upper layer plate till the impurities fall onto the collecting plate to be collected, and therefore the situation that the impurities block filtering holes, and the filtering effect is affected is avoided; and the impurities collected by the collecting plate can finally fall into the annular filter cylinder at the bottom of the inner cavity of the hollow column, and the impurities can be conveniently poured out by lifting the annular filter cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating equipment, and in particular to an electroplating wastewater treatment box and electroplating wastewater treatment equipment. Background Art

[0002] Electroplating is a surface treatment technology that deposits metal on the surface of a workpiece through electrolysis to form a metal coating. The wastewater generated during the electroplating process can be reacted by adding a catalyst to remove metal ions in the water.

[0003] However, the addition of catalysts will produce some impurities adhering to the inside of the reaction barrel. The Chinese utility model with publication number CN220951207U discloses an electroplating wastewater treatment box, which drives the stirring rod to float and rotate through a spline shaft, so that the scraper can clean the impurities on the inner wall of the reaction barrel more cleanly.

[0004] However, at present, more impurities in electroplating wastewater will adhere to the filter, causing the filter to be blocked after long-term use, affecting the filtering effect. To this end, the present invention proposes an electroplating wastewater treatment box and an electroplating wastewater treatment device to solve the above problem. Summary of the invention

[0005] The object of the present invention is to provide an electroplating wastewater treatment box and electroplating wastewater treatment equipment to solve the problem of impurities in the electroplating wastewater adhering to the filter screen and causing blockage as mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an electroplating wastewater treatment tank, comprising:

[0007] A reaction cylinder, wherein the inner cavity of the reaction cylinder is provided with a hollow column, a spiral filter assembly is fixed on the surface of the hollow column, the side of the filter assembly is fixedly connected to the inner wall of the reaction cylinder, the cross section of the filter assembly is in a flat "mouth" shape, the filter assembly comprises an upper plate and a drainage frame, a through groove is provided on the surface of the upper plate, and a filter plate is fixed at the opening of the through groove, the cross section of the filter plate is in an inclined "7" shape, and filter holes are provided on the surface;

[0008] The collecting plate is fixed to the outer side of the lower end of the hollow column and is fixedly connected to the lower end of the filter assembly. A gap is left between the collecting plate and the bottom of the reaction cylinder. A avoidance opening is opened on the surface of the collecting plate and corresponds to the lower end opening of the filter assembly.

[0009] Preferably, the hollow column is configured as a hollow structure and an annular filter cartridge is rotatably mounted at the bottom, the side wall of the annular filter cartridge is provided with a plurality of evenly distributed small holes, a lifting rod is fixed to the inner cavity of the annular filter cartridge, and the upper end of the lifting rod extends out of the inner cavity of the hollow column.

[0010] Preferably, an inlet and an outlet are respectively formed in the side wall of the lower part of the hollow column from top to bottom. The inlet and the outlet are respectively located on the upper and lower sides of the collecting plate, and the outlet and the small holes in the side wall of the annular filter cartridge are at the same height position. A metal platform is fixedly arranged at the bottom of the annular filter cartridge, and the lower end of the lifting rod is fixedly connected to the metal platform.

[0011] Preferably, a gap is left between the lower end surface of the hollow column and the bottom of the reaction cylinder, and a rotating disk is arranged in the gap. A plurality of rotating blades distributed in an annular array are fixed on the side surface of the rotating disk, a rotating shaft is fixed in the middle of the rotating disk, and the rotating shaft movably penetrates through the bottom of the hollow column and extends into the inner cavity of the hollow column.

[0012] Preferably, a polygonal insertion block is fixed at the upper end of the rotating shaft. A polygonal insertion slot for the polygonal insertion block to movably insert and match is formed in the metal platform, and a magnet sheet is fixed on the upper surface of the polygonal insertion block.

[0013] Preferably, a groove is formed on the lower surface of the rotating disk, a communication port is formed through the inner side wall of the groove, and a drain pipe corresponding to the groove is arranged at the center of the bottom of the reaction cylinder.

[0014] Preferably, the upper opening of the reaction cylinder is covered with a cover. A convex platform is fixed on the lower surface of the cover. The convex platform covers the upper opening of the hollow column, and a round hole for the lifting rod to insert is formed in the lower end surface of the convex platform.

[0015] An electroplating wastewater treatment device includes the above-mentioned electroplating wastewater treatment tank.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] In the present invention, a spiral filter assembly is fixed on the outside of the hollow column. The cross section of the filter assembly is in a flat "mouth" shape. The filter assembly includes an upper layer plate and a drainage frame. Through grooves are formed on the upper surface of the upper layer plate, and a filter plate is fixed at the opening of the through groove. The cross section of the filter plate is in an inclined "" shape, and filter holes are formed on the surface. When electroplating wastewater flows on the surface of the filter assembly, the filter plate can filter impurities so that the impurities remain on the surface of the upper layer plate. The impurities can gradually move downward along the surface of the filter assembly under the impact of the electroplating wastewater until they fall onto the collecting plate for collection, thereby avoiding the blockage of the filter holes by impurities and affecting the filtering effect. Moreover, the impurities collected by the collecting plate can finally fall into the annular filter cartridge at the bottom of the inner cavity of the hollow column, and the impurities can be easily poured out by lifting the annular filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 2This is a schematic diagram of the internal structure of the reaction tube of the present invention;

[0020] Figure 3 It is a partial cutaway schematic diagram of the filter assembly structure of the present invention;

[0021] Figure 4 It is a side cross-sectional schematic diagram of the filter assembly and the collecting plate structure of the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the hollow column and filter assembly structure of the present invention;

[0023] Figure 6 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 7 A half-section schematic diagram of the annular filter cartridge structure of the present invention;

[0025] Figure 8 It is a three-dimensional schematic diagram of the annular filter cartridge structure of the present invention.

[0026] In the figure: 1. reaction cylinder; 11. drain pipe; 2. hollow column; 21. inlet; 22. discharge port; 3. filter assembly; 31. upper plate; 311. through groove; 32. drainage frame; 33. filter plate; 331. filter hole; 4. collecting plate; 41. avoidance port; 5. turntable; 51. rotating blade; 52. groove; 53. connecting port; 54. rotating shaft; 55. polygonal plug; 56. magnet sheet; 6. annular filter cylinder; 61. metal table; 62. lifting rod; 7. sealing cover; 71. boss. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 8 , the present invention provides a technical solution:

[0029] Embodiment 1, an electroplating wastewater treatment box, includes: a reaction tube 1 and a collecting plate 4.

[0030] Specifically, a hollow column 2 is provided in the inner cavity of the reaction cylinder 1, and the hollow column 2 is located at the center of the inner cavity of the reaction cylinder 1. A spiral filter component 3 is fixed on the surface of the hollow column 2, and the side of the filter component 3 is fixedly connected to the inner wall of the reaction cylinder 1. Therefore, the filter component 3, the hollow column 2 and the reaction cylinder 1 remain relatively fixed, and there is no gap between the filter component 3 and the inner wall of the reaction cylinder 1. When the external wastewater pipe passes the electroplating wastewater into the upper part of the inner cavity of the reaction cylinder 1, the electroplating wastewater can flow downward along the surface of the filter component 3 under the action of gravity. Secondly, the cross-section of the filter component 3 is a flat "mouth" shape. The filter component 3 includes an upper plate 31 and a drainage frame 32. A through groove 311 is provided on the surface of the upper plate 31, and a filter plate 33 is fixed at the opening of the through groove 311. The cross-section of the filter plate 33 is an inclined "7" shape, and a filter hole 331 is provided on the surface. Figure 3 As shown, when the electroplating wastewater flows on the surface of the filter component 3, the filter plate 33 can filter the electroplating wastewater, so that the impurities in the electroplating wastewater are retained on the inclined surface of the filter plate 33, and the filtered liquid can pass through the through groove 311 under the action of gravity and fall into the drainage frame 32, and flow downward along the inner cavity of the drainage frame 32. If the filter holes 331 on the surface of the filter plate 33 are blocked by impurities, the electroplating wastewater cannot flow into the through groove 311 at this position, so the electroplating wastewater will continue to flow downward along the surface of the upper plate 31, and the wastewater at this time can continuously impact the impurities on the surface of the filter plate 33 when flowing, thereby flushing the impurities on the surface of the filter plate 33 downward, and preventing the impurities from clogging the filter holes 331. That is to say, when the filter component 3 of the present device is blocked by impurities, the impurities can be automatically flushed away by the impact of the electroplating wastewater, thereby achieving a self-cleaning effect and avoiding the influence of the filtering effect due to blockage;

[0031] Furthermore, the collecting plate 4 is fixed to the outer side of the lower end of the hollow column 2 and is fixedly connected to the lower end of the filter assembly 3. A gap is left between the collecting plate 4 and the bottom of the reaction cylinder 1. A relief opening 41 is opened on the surface of the collecting plate 4 and corresponds to the lower end opening of the filter assembly 3. Figure 4 and Figure 2 As shown, the filtered liquid can flow through the avoidance port 41 to the bottom of the collecting plate 4, while the impurities on the surface of the upper plate 31 can remain on the upper surface of the collecting plate 4 to avoid being re-mixed into the liquid. Since the filter component 3 of the device itself has a larger surface area and can self-clean impurities, it can effectively avoid clogging by impurities and affecting the filtering effect.

[0032] In order to filter a small amount of electroplating wastewater on the surface of the collecting plate 4, the hollow column 2 of the present application is set as a hollow structure and an annular filter cartridge 6 is rotatably installed at the bottom. The side wall of the annular filter cartridge 6 is provided with a plurality of evenly distributed small holes. A lifting rod 62 is fixed to the inner cavity of the annular filter cartridge 6, and the upper end of the lifting rod 62 extends out of the inner cavity of the hollow column 2. After part of the electroplating wastewater flows to the surface of the collecting plate 4 due to gravity, it can enter the inner cavity of the hollow column 2 and be filtered by the annular filter cartridge 6 in the inner cavity of the hollow column 2. The staff can place the annular filter cartridge 6 in the inner cavity of the hollow column 2 or take it out from the inner cavity of the hollow column 2 by using the lifting rod 62, so as to pour out the impurities in the inner cavity of the annular filter cartridge 6.

[0033] In order to facilitate the cleaning and pouring out of the filtered impurities, the present application also has an inlet 21 and a discharge port 22 respectively opened from top to bottom on the side wall of the lower part of the hollow column 2, the inlet 21 and the discharge port 22 are respectively located on the upper and lower sides of the collecting plate 4, and the discharge port 22 is located at the same height as the small hole on the side wall of the annular filter cartridge 6, that is, the electroplating wastewater on the surface of the collecting plate 4 can pass through the inlet 21 into the inner cavity of the hollow column 2, and then pass through the small holes on the surface of the annular filter cartridge 6 and the discharge port 22 in turn, so as to achieve filtration. Since the filter component 3 itself is relatively long, it can already filter most of the The electroplating wastewater has a filtering effect, that is, only a small amount of electroplating wastewater falls on the surface of the collecting plate 4. These electroplating wastewaters mainly take away the impurities on the surface of the filter component 3 and fall on the surface of the collecting plate 4, and these electroplating wastewaters continue to pass through the inlet 21 into the inner cavity of the hollow column 2, which can bring the impurities on the surface of the collecting plate 4 into the inner cavity of the hollow column 2, and finally remain in the inner cavity of the annular filter cartridge 6, so that the staff can pour out the impurities by taking out the annular filter cartridge 6. A metal table 61 is fixedly provided at the bottom of the annular filter cartridge 6, and the lower end of the lifting rod 62 is fixedly connected to the metal table 61.

[0034] The present application also has a gap between the lower end surface of the hollow column 2 and the bottom of the reaction tube 1, and a turntable 5 is arranged in the gap. A plurality of rotating blades 51 distributed in a ring array are fixed to the side of the turntable 5, and a rotating shaft 54 ​​is fixed to the middle of the turntable 5. The rotating shaft 54 ​​movably passes through the bottom of the hollow column 2 and extends to the inner cavity of the hollow column 2. The turntable 5 can rotate below the hollow column 2. Since the filtered liquid flows in the drainage frame 32, and the drainage frame 32 is spiral, after the lower port of the drainage frame 32 discharges the liquid, the liquid can pass through the avoidance port 41 and directly impact the surface of the rotating blade 51, thereby driving the turntable 5 to rotate.

[0035] In order to reduce the possibility of the small holes on the inner wall of the annular filter cartridge 6 being blocked, the present application also has a polygonal plug block 55 fixed at the upper end of the rotating shaft 54, and a polygonal slot for the polygonal plug block 55 to be movably plugged in and adapted is opened inside the metal table 61, and a magnet sheet 56 is fixed on the upper surface of the polygonal plug block 55. When the turntable 5 rotates, the turntable 5 can drive the annular filter cartridge 6 to rotate synchronously therewith through the polygonal plug block 55. When the annular filter cartridge 6 rotates, it can reduce the adhesion of impurities to the inner wall of the annular filter cartridge 6, thereby reducing the possibility of the small holes on the inner wall of the annular filter cartridge 6 being blocked, and the provision of the magnet sheet 56 can increase the connection strength between the annular filter cartridge 6 and the turntable 5, thereby preventing the annular filter cartridge 6 from easily moving in the vertical reverse direction and causing it to separate from the polygonal plug block 55.

[0036] In order to drain the filtered liquid, the present application also has a groove 52 on the lower surface of the turntable 5, and a connecting port 53 is formed through the inner wall of the groove 52. A drain pipe 11 corresponding to the groove 52 is arranged at the bottom center of the reaction cylinder 1. The filtered liquid located below the collecting plate 4 can pass through the connecting port 53 into the inner cavity of the groove 52 and finally be discharged from the drain pipe 11.

[0037] In order to reduce the emission of odor, the present application also has a cover 7 covering the upper opening of the reaction cylinder 1, and a boss 71 is fixed to the lower surface of the cover 7. The boss 71 covers the upper opening of the hollow column 2, and a circular hole for inserting a lifting rod 62 is provided on the lower end surface of the boss 71. The cover 7 is used to seal the reaction cylinder 1 to reduce the emission of odor in the wastewater into the air. The boss 71 is used to position the upper end of the lifting rod 62 to prevent the lifting rod 62 from tilting and causing the rotation of the annular filter cylinder 6 to be obstructed.

[0038] The invention also discloses an electroplating wastewater treatment device, comprising the electroplating wastewater treatment box.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electroplating wastewater treatment tank, characterized in that: include: A reaction cylinder (1), wherein the inner cavity of the reaction cylinder (1) is provided with a hollow column (2), a spiral filter assembly (3) is fixed on the surface of the hollow column (2), the side of the filter assembly (3) is fixedly connected to the inner wall of the reaction cylinder (1), the cross section of the filter assembly (3) is in a flat "mouth" shape, the filter assembly (3) comprises an upper plate (31) and a drainage frame (32), a through groove (311) is provided on the surface of the upper plate (31), and a filter plate (33) is fixed at the opening of the through groove (311), the cross section of the filter plate (33) is in an inclined "7" shape, and a filter hole (331) is provided on the surface; A collecting plate (4), the collecting plate (4) is fixed to the outer side of the lower end of the hollow column (2) and is fixedly connected to the lower end of the filter assembly (3), a gap is left between the collecting plate (4) and the bottom of the reaction cylinder (1), and a avoidance opening (41) is opened on the surface of the collecting plate (4) and corresponds to the lower end opening of the filter assembly (3).

2. The electroplating wastewater treatment tank according to claim 1, characterized in that: The hollow column (2) is configured as a hollow structure and an annular filter cartridge (6) is rotatably mounted at the bottom. The side wall of the annular filter cartridge (6) is provided with a plurality of evenly distributed small holes. A lifting rod (62) is fixed to the inner cavity of the annular filter cartridge (6), and the upper end of the lifting rod (62) extends out of the inner cavity of the hollow column (2).

3. The electroplating wastewater treatment tank according to claim 2, characterized in that: The side walls of the lower part of the hollow column (2) are respectively provided with an inlet (21) and an outlet (22) from top to bottom. The inlet (21) and the outlet (22) are respectively located on the upper and lower sides of the collecting plate (4), and the outlet (22) and the small hole on the side wall of the annular filter cartridge (6) are located at the same height. A metal platform (61) is fixedly provided at the bottom of the annular filter cartridge (6), and the lower end of the lifting rod (62) is fixedly connected to the metal platform (61).

4. The electroplating wastewater treatment tank according to claim 3, characterized in that: A gap is left between the lower end surface of the hollow column (2) and the bottom of the reaction cylinder (1), and a turntable (5) is arranged in the gap. A plurality of rotating blades (51) distributed in a ring array are fixed to the side of the turntable (5). A rotating shaft (54) is fixed in the middle of the turntable (5). The rotating shaft (54) movably passes through the bottom of the hollow column (2) and extends to the inner cavity of the hollow column (2).

5. The electroplating wastewater treatment tank according to claim 4, characterized in that: A polygonal plug-in block (55) is fixed to the upper end of the rotating shaft (54), a polygonal slot for the polygonal plug-in block (55) to be movably plugged in and adapted is provided inside the metal platform (61), and a magnet sheet (56) is fixed to the upper surface of the polygonal plug-in block (55).

6. The electroplating wastewater treatment tank according to claim 5, characterized in that: The lower surface of the turntable (5) is provided with a groove (52), the inner wall of the groove (52) is penetrated by a communication port (53), and a liquid discharge pipe (11) corresponding to the groove (52) is provided at the bottom center of the reaction cylinder (1).

7. The electroplating wastewater treatment tank according to claim 1, characterized in that: The upper opening of the reaction cylinder (1) is covered with a sealing cover (7), and a boss (71) is fixed on the lower surface of the sealing cover (7). The boss (71) covers the upper opening of the hollow column (2), and a circular hole for inserting a lifting rod (62) is provided on the lower end surface of the boss (71).

8. An electroplating wastewater treatment device, characterized in that: A plating wastewater treatment tank comprising any one of claims 1-7.

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