Equipment and method for treating electroplating wastewater of metal products

Abstract

The invention relates to the technical field of metal product processing, in particular to electroplating wastewater treatment equipment for metal products and a treatment method.The electroplating wastewater treatment equipment comprises a treatment box with an opening in the upper end, a precipitation table fixed to the inner bottom of the treatment box, and the top of the precipitation table is in a circular truncated cone shape with the narrow upper portion and the wide lower portion; an annular gap is reserved between the outer side wall of the precipitation table and the inner side wall of the treatment box; the annular net barrel is arranged in the annular gap in a sliding manner, and a lifting mechanism connected with the annular net barrel is arranged on the treatment box; the cleaning rod is fixedly connected with the stirring mechanism and is attached to the top of the precipitation table. By adopting the mode of fishing out while precipitating, part of precipitates can be timely conveyed to subsequent procedures, so that the waiting time of the subsequent procedures is shortened, and the treatment efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal product processing, and in particular to a metal product electroplating wastewater treatment device and a treatment method. Background Art

[0002] Metal products refer to various products made from metal materials after a series of processes; among them, electroplating is an important process for surface treatment of metal products. It uses the principle of electrolysis to plate a thin layer of other metals or alloys on certain metal surfaces to enhance the performance of the substrate and meet specific application requirements. However, during the electroplating process of metal products, a lot of wastewater will be generated, which needs to be treated with electroplating wastewater treatment equipment.

[0003] Existing electroplating wastewater treatment equipment usually consists of a treatment box and a stirring mechanism. When in use, the electroplating wastewater to be treated and the reagents for treating the electroplating wastewater are input into the treatment box, and the electroplating wastewater and the reagents are stirred by the stirring mechanism. After the electroplating wastewater and the reagents fully react, the heavy metal ions in the wastewater form precipitates, thereby removing them from the wastewater.

[0004] During the treatment process, it was found that after the electroplating wastewater and the reagents fully reacted, it was necessary to let it stand for a period of time so that the sediment would fall to the bottom of the treatment box, and then separate the sediment and the wastewater. Since the sediment needs to be further treated later, the method of standing and settling is adopted, which makes the waiting time for the subsequent process longer and affects the treatment efficiency. Therefore, we proposed a metal product electroplating wastewater treatment equipment and treatment method to solve the above drawbacks. Summary of the invention

[0005] The object of the present invention is to provide a metal product electroplating wastewater treatment device and method, which is used to solve the problem proposed in the above background technology that the static sedimentation method makes the waiting time for subsequent processes long, affecting the treatment efficiency.

[0006] The present invention is realized by the following technical scheme: a metal product electroplating wastewater treatment device, comprising a treatment box with an open upper end, a stirring mechanism provided in the treatment box, and further comprising:

[0007] A settling table, which is fixed to the inner bottom of the treatment box and has a top in the shape of a truncated cone that is narrow at the top and wide at the bottom, and an annular gap is left between the outer wall of the settling table and the inner wall of the treatment box;

[0008] An annular net barrel, the annular net barrel is slidably arranged in the annular gap, and a lifting mechanism connected to the annular net barrel is arranged on the processing box;

[0009] A cleaning rod is fixedly connected to the stirring mechanism and fits the top of the sedimentation table, and is used to sweep the sediment on the top of the sedimentation table into the annular net barrel.

[0010] Optionally, an annular sealing plate that fits the bottom of the annular net barrel is slidably arranged in the annular gap, and a plurality of return springs are connected between the bottom of the annular sealing plate and the inner bottom of the processing box.

[0011] Optionally, the bottom surface of the annular net barrel is an outer conical surface that is wider at the top and narrower at the bottom, and the top surface of the annular sealing plate is an inner conical surface that is wider at the top and narrower at the bottom.

[0012] Optionally, an annular top cover is fixed to the inner upper end of the annular net barrel by magnetic attraction, a plurality of arc-shaped openings are arranged at intervals along the circumferential direction on the annular top cover, and an opening and closing control mechanism that matches each arc-shaped opening one by one is arranged on the annular top cover.

[0013] Optionally, the annular top cover consists of an outer ring, an inner ring and a plurality of connecting ribs fixed between the outer ring and the inner ring at circumferential intervals; the outer ring and the inner ring are fixed to the annular net barrel by magnetic attraction, and the arc-shaped opening is composed of two adjacent connecting ribs and the gap between the outer ring and the inner ring.

[0014] Optionally, the opening and closing control mechanism includes a rotating shaft rotatably connected between the outer ring and the inner ring and passing through the arc-shaped opening, an arc-shaped plate is fixed on the rotating shaft, and a sealing ring adapted to the arc-shaped opening is fixed on the outer side of the arc-shaped plate.

[0015] Optionally, the outer ring and the inner ring are both provided with cavities, and both ends of the rotating shaft extend to the inside of the outer ring and the inner ring;

[0016] The opening and closing control mechanism further comprises a torsion spring located in the inner ring, one torsion arm of the torsion spring is connected to the rotating shaft, and the other torsion arm of the torsion spring is connected to the inner ring;

[0017] A reel located inside the outer ring is fixed on the rotating shaft, a pull rope is fixedly connected to the reel, the pull rope moves vertically through the top of the outer ring and a pull rod is fixedly connected to the upper end, a hollow column that is movably sleeved on the outer periphery of the pull rod is fixed to the top of the outer ring; a sliding rod arranged in the horizontal direction is fixed to the upper end of the pull rod, and a limiting sliding groove that is adapted to the sliding rod is opened in the vertical direction on the inner side wall of the processing box.

[0018] Optionally, a guide rod is fixed on the top of the annular net barrel and moves through each sliding rod in the vertical direction. A connecting ring is fixedly connected to the upper end of each guide rod, and the lifting mechanism is connected to the connecting ring.

[0019] Optionally, the lifting mechanism includes a mounting frame fixed to the outside of the processing box, on which a plurality of screws arranged in the vertical direction are rotatably connected through bearings and shaft seats, and the screws are arranged at equal intervals along the circumference of the processing box. A motor connected to the screws for transmission is installed on the mounting frame, and each screw is threadedly connected with a sleeve, and a connecting rod that bypasses the top of the processing box and is fixed to a connecting ring is fixed to each sleeve.

[0020] The present invention also provides a method for treating electroplating wastewater of metal products, which is applicable to the above-mentioned electroplating wastewater treatment equipment and comprises the following steps:

[0021] Step 1: Inputting electroplating wastewater of metal products and reagents for treating electroplating wastewater into the treatment box;

[0022] Step 2: stirring the electroplating wastewater and reagents by a stirring mechanism;

[0023] Step 3: During the stirring process, the precipitate formed after the electroplating wastewater reacts with the reagent falls to the top of the precipitation table;

[0024] Step 4: During the stirring process, the stirring mechanism drives the cleaning rod to rotate synchronously to sweep the sediment on the top of the sedimentation table into the annular net barrel;

[0025] Step 5: After a period of time, the lifting mechanism drives the annular net barrel to move upward to above the liquid surface, and the precipitate is fished out for subsequent treatment;

[0026] Step 6: After the treatment is completed, the lifting mechanism drives the annular net bucket to reset downward, and the stirring, cleaning and scooping work continues;

[0027] Step 7: After the sediment is completely removed, the treated waste liquid is discharged.

[0028] Compared with the prior art, the present invention provides a metal product electroplating wastewater treatment device and treatment method, which has the following beneficial effects:

[0029] 1. The present invention sets a sedimentation table, an annular gap, an annular net barrel, a lifting mechanism and a cleaning rod. During the process of stirring the electroplating wastewater and reagents in the treatment box, the sediment formed after the electroplating wastewater and the reagents react falls to the top of the sedimentation table; since the top of the sedimentation table is a truncated cone with a narrow top and a wide bottom, the sediment on the top of the sedimentation table can be smoothly swept into the annular net barrel by the cleaning rod; then the annular net barrel is driven upward by the lifting mechanism to fish out the sediment. This method of fishing out while sedimentation can timely deliver part of the sediment to the subsequent process, reduce the waiting time of the subsequent process, and greatly improve the processing efficiency.

[0030] 2. The present invention provides an annular sealing plate and a reset spring. When the annular net barrel moves upward, the annular sealing plate can be reset upward under the action of the reset spring, thereby blocking the annular gap and reducing the probability of sediment entering the annular gap. In addition, since the top surface of the annular sealing plate is an inner conical surface that is wide at the top and narrow at the bottom, when the annular sealing plate is reset upward, the inner conical surface is higher than the outer edge of the top of the sedimentation platform, so that the sediment is easily accumulated on the top of the sedimentation platform, but not on the inner conical surface, so as to avoid the sediment being sandwiched between the annular net barrel and the annular sealing plate when the annular net barrel is reset downward, which affects the salvage effect.

[0031] 3. The present invention provides an annular top cover, an arc-shaped opening, an opening and closing control mechanism and a limiting slide groove. When the annular net barrel is located in the annular gap, the cooperation of the slide rod, the limiting slide groove, the pull rod and the pull rope drives the rotating shaft to rotate, so that the arc plate is in a vertical state, and the sediment can enter the annular net barrel through the arc-shaped opening. When the annular net barrel moves upward, under the action of the torsion spring, the rotating shaft automatically rotates, so that the arc plate is in a horizontal state. Through the cooperation of the arc plate and the sealing ring, the arc opening is blocked to prevent the sediment in the annular net barrel from being scattered, so that the sediment can be smoothly fished out above the liquid surface.

[0032] Since the annular top cover is fixed to the annular net barrel by magnetic attraction, the annular top cover can move relatively in the annular net barrel under the action of external force. In the process of the annular net barrel moving upward, when the slide bar moves upward to the limit position of the limit slide slot, the slide bar, the pull rod and the hollow column can cooperate to drive the annular top cover to move downward along the annular net barrel to squeeze the sediment to reduce the volume of the sediment for subsequent removal; at the same time, the squeezed wastewater falls into the treatment box for subsequent centralized discharge, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a state diagram of the annular net barrel of the present invention being located in the annular gap;

[0034] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0035] Figure 3 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0036] Figure 4 This is a state diagram of the annular sealing plate of the present invention after being reset;

[0037] Figure 5 for Figure 4 The enlarged schematic diagram of the center C;

[0038] Figure 6 This is a state diagram of the annular top cover of the present invention squeezing the sediment;

[0039] Figure 7 This is a state diagram of taking out the sediment in the annular net barrel according to the present invention;

[0040] Figure 8 It is a structural schematic diagram of the annular net barrel of the present invention;

[0041] Fig. 9 It is a schematic structural diagram of the annular top cover of the present invention.

[0042] In the figure: 1. treatment box; 2. stirring mechanism; 3. sedimentation table; 4. annular gap; 5. annular net barrel; 6. lifting mechanism; 601. screw; 602. motor; 603. screw sleeve; 7. cleaning rod; 8. annular sealing plate; 9. reset spring; 10. annular top cover; 1001. outer ring; 1002. inner ring; 1003. connecting rib; 11. arc opening; 12. opening and closing control mechanism; 1201. rotating shaft; 1202. arc plate; 1203. sealing ring; 1204. torsion spring; 1205. reel; 1206. pull rope; 1207. pull rod; 1208. hollow column; 1209. slide rod; 13. limit slide groove; 14. guide rod; 15. connecting ring; 16. connecting rod; 17. magnet. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0044] Example 1: Please refer to Figures 1 to 9 , a device for treating electroplating wastewater of metal products, comprises a treatment box 1 with an open top, wherein a stirring mechanism 2 is arranged inside the treatment box 1. Electroplating wastewater and reagents for treating electroplating wastewater are input into the treatment box 1, and then stirred by the stirring mechanism 2. After the electroplating wastewater and the reagents fully react, the heavy metal ions in the wastewater form precipitates, thereby removing them from the wastewater. In this embodiment, it should be supplemented that the stirring mechanism 2 comprises a bracket fixed to the top of the treatment box 1, a stirring motor is installed on the bracket, the output end of the stirring motor is transmission-connected to a stirring rod extending into the treatment box 1, and a stirring blade is fixed on the stirring rod for stirring the electroplating wastewater and the reagents for treating the electroplating wastewater.

[0045] This embodiment also includes: a sedimentation table 3, an annular net barrel 5 and a cleaning rod 7.

[0046] Specifically, the sedimentation table 3 is fixed to the inner bottom of the treatment box 1 and has a top in the shape of a truncated cone that is narrow at the top and wide at the bottom, so that the sediment on the top of the sedimentation table 3 can be swept into the annular net barrel 5 by the cleaning rod 7. An annular gap 4 is left between the outer wall of the sedimentation table 3 and the inner wall of the treatment box 1 for placing the annular net barrel 5. The annular net barrel 5 is slidably arranged in the annular gap 4. When the sediment is swept into the annular net barrel 5, the top of the annular net barrel 5 is lower than the top outer edge of the sedimentation table 3, so that the sediment can enter the annular net barrel 5. A lifting mechanism 6 connected to the annular net barrel 5 is provided on the treatment box 1, which is used to drive the annular net barrel 5 to move up and down, so as to fish out the sediment. The cleaning rod 7 is fixedly connected to the stirring mechanism 2 and fits with the top of the sedimentation table 3, so as to sweep the sediment on the top of the sedimentation table 3 into the annular net barrel 5.

[0047] With the above structure, during the process of stirring the electroplating wastewater and reagents in the treatment box 1, the precipitate formed after the reaction of the electroplating wastewater and the reagents falls to the top of the precipitation table 3; since the top of the precipitation table 3 is a truncated cone with a narrow top and a wide bottom, the precipitate on the top of the precipitation table 3 can be smoothly swept into the annular net barrel 5 by the cleaning rod 7; then the annular net barrel 5 is driven upward by the lifting mechanism 6 to fish out the precipitate. With this structure, the precipitate can be fished out while being precipitated, so that part of the precipitate can be sent to the subsequent process in time, reducing the waiting time of the subsequent process and greatly improving the processing efficiency.

[0048] It is worth mentioning that an annular sealing plate 8 is slidably arranged in the annular gap 4 and fits the bottom of the annular net barrel 5, and a plurality of reset springs 9 are connected between the bottom of the annular sealing plate 8 and the inner bottom of the treatment box 1. When the annular net barrel 5 is located in the annular gap 4, the reset spring 9 is in a compressed state; when the annular net barrel 5 moves upward, the annular sealing plate 8 moves upward under the action of the reset spring 9, thereby blocking the annular gap 4, making it difficult for sediment to enter the annular gap 4, and facilitating the subsequent removal of all the sediment.

[0049] Furthermore, the bottom surface of the annular net barrel 5 is an outer conical surface that is wide at the top and narrow at the bottom, and the top surface of the annular sealing plate 8 is an inner conical surface that is wide at the top and narrow at the bottom. When the annular sealing plate 8 is reset upward, the inner conical surface is higher than the outer edge of the top of the sedimentation platform 3, so that the sediment is easily accumulated on the top of the sedimentation platform 3, but not easily accumulated on the inner conical surface, so as to avoid the sediment being sandwiched between the annular net barrel 5 and the annular sealing plate 8 when the annular net barrel 5 is reset downward, thereby affecting the salvage effect.

[0050] In this embodiment, in order to prevent the sediment in the annular net barrel 5 from being scattered in large quantities during the upward movement of the annular net barrel 5, the following design is performed:

[0051] The inner upper end of the annular net barrel 5 is fixed with an annular top cover 10 by magnetic attraction. By magnetic attraction, under the action of external force, the annular top cover 10 can move up and down relative to the annular net barrel 5. When the annular top cover 10 moves upward away from the annular net barrel 5, the sediment in the annular net barrel 5 can be taken out. When the annular top cover 10 moves downward, the sediment in the annular net barrel 5 can be squeezed to reduce the volume of the sediment for easy removal; at the same time, the squeezed wastewater enters the treatment box 1, which is convenient for subsequent centralized discharge and treatment.

[0052] A plurality of arc-shaped openings 11 are arranged at intervals along the circumferential direction on the annular top cover 10, and an opening and closing control mechanism 12 is arranged on the annular top cover 10, which is matched with each arc-shaped opening 11 one by one, and is used to control the opening and closing of the arc-shaped opening 11. When the arc-shaped opening 11 is opened, the sediment can enter the annular net barrel 5 through the arc-shaped opening 11. When the arc-shaped opening 11 is closed, the sediment in the annular net barrel 5 is not easy to disperse.

[0053] The annular top cover 10 is described in detail below:

[0054] The annular top cover 10 is composed of an outer ring 1001, an inner ring 1002, and a plurality of connecting ribs 1003 fixed between the outer ring 1001 and the inner ring 1002 at intervals along the circumferential direction; the outer ring 1001 and the inner ring 1002 are fixed to the annular net barrel 5 by magnetic attraction. The arc-shaped opening 11 is composed of two adjacent connecting ribs 1003 and the gap between the outer ring 1001 and the inner ring 1002. In this embodiment, a plurality of first iron sheets are fixed at intervals along the circumferential direction on the outer ring 1001, a plurality of second iron sheets are fixed at intervals along the circumferential direction on the inner ring 1002, and a magnet 17 corresponding to each first iron sheet and each second iron sheet is fixed at the inner upper end of the annular net barrel 5. With this structure, the annular top cover 10 can be fixed to the annular net barrel 5.

[0055] The opening and closing control mechanism 12 is described in detail below:

[0056] The opening and closing control mechanism 12 includes a rotating shaft 1201 that is rotatably connected between the outer ring 1001 and the inner ring 1002 and passes through the arc-shaped opening 11. An arc-shaped plate 1202 is fixed on the rotating shaft 1201. A sealing ring 1203 that is adapted to the arc-shaped opening 11 is fixed on the outer side of the arc-shaped plate 1202. The sealing ring 1203 is made of an elastic material, such as rubber. When the rotating shaft 1201 rotates to drive the arc-shaped plate 1202 to flip to a horizontal state, the arc-shaped opening 11 can be blocked by the cooperation of the arc-shaped plate 1202 and the sealing ring 1203, so that the sediment in the annular net barrel 5 is not easy to disperse through the arc-shaped opening 11. Since the sealing ring 1203 is elastic, the arc-shaped plate 1202 can be smoothly turned to a vertical state by the rotating shaft 1201, and the arc-shaped opening 11 is not blocked. At this time, the sediment can enter the annular net barrel 5 through the arc-shaped opening 11.

[0057] It should be supplemented that the outer ring 1001 and the inner ring 1002 are both provided with cavities, and both ends of the rotating shaft 1201 extend to the inside of the outer ring 1001 and the inner ring 1002, so as to facilitate connection with other components to realize automatic rotation of the rotating shaft 1201.

[0058] The opening and closing control mechanism 12 also includes a torsion spring 1204 located in the inner ring 1002, one of the torsion arms of the torsion spring 1204 is connected to the rotating shaft 1201, and the other torsion arm of the torsion spring 1204 is connected to the inner ring 1002. Under the action of the torsion spring 1204, the arc plate 1202 can be in a horizontal state. A reel 1205 located in the outer ring 1001 is fixed on the rotating shaft 1201, and a pull rope 1206 is fixedly connected to the reel 1205. The pull rope 1206 moves through the top of the outer ring 1001 in a vertical direction and is fixedly connected to a pull rod 1207 at the upper end. A hollow column 1208 that is movably sleeved on the outer periphery of the pull rod 1207 is fixed on the top of the outer ring 1001. The pull rod 1207 moves upward in the hollow column 1208, and the reel 1205 can be pulled by the pull rope 1206 to rotate the shaft 1201, so that the arc plate 1202 rotates 90 degrees to a vertical state. A sliding rod 1209 arranged in the horizontal direction is fixed to the upper end of the pull rod 1207, and a limiting sliding groove 13 adapted to the sliding rod 1209 is opened in the vertical direction on the inner side wall of the processing box 1.

[0059] like Figure 1 and Figure 2 As shown, when the annular net barrel 5 is located in the annular gap 4, the sliding rod 1209 is located at the lower end limit of the limiting slide groove 13 to pull the pull rod 1207 out a certain distance, so that the rotating shaft 1201 is rotated through the cooperation of the pull rope 1206 and the reel 1205, so that the arc plate 1202 is in a vertical state and the arc opening 11 is not blocked; at this time, the sediment on the top of the sedimentation table 3 can be swept into the annular net barrel 5 through the cleaning rod 7.

[0060] It should be noted that when the pull rods 1207 are pulled out a certain distance, the sum of the pulling forces on all the pull rods 1207 is smaller than the sum of the magnetic attraction forces provided by all the magnets 17 , thereby preventing the annular top cover 10 from being pulled out of the annular net barrel 5 .

[0061] like Figure 4 and Figure 5 As shown, when the annular net barrel 5 moves upward, the annular sealing plate 8 is reset upward under the action of the reset spring 9 to block the annular gap 4; at the same time, the sliding rod 1209 is away from the lower end limit of the limiting slide groove 13, so that under the action of the torsion spring 1204, the rotating shaft 1201 rotates to make the arc plate 1202 in a horizontal state, and the arc opening 11 is blocked by the cooperation of the arc plate 1202 and the sealing ring 1203; at this time, the pull rod 1207 is completely retracted into the hollow column 1208.

[0062] like Figure 6 As shown, when the annular net barrel 5 moves above the liquid surface, the slide bar 1209 is located at the upper limit position of the limit slide groove 13, so that under the action of the slide bar 1209 and the hollow column 1208, the annular top cover 10 no longer moves upward with the annular net barrel 5, and the sediment in the annular net barrel 5 can be squeezed through the annular top cover 10 and the arc plate 1202 in a horizontal state.

[0063] like Figures 7 to 9 As shown, after the extrusion is completed, the annular net barrel 5 moves downward for a distance, and then the staff lifts the annular top cover 10 to make the annular top cover 10 away from the annular net barrel 5, and the sediment in the annular net barrel 5 can be taken out and sent to the next process; then the annular top cover 10 is reset downward and fixed to the inner upper end of the annular net barrel 5 by magnetic attraction; finally, the annular net barrel 5 is driven by the lifting mechanism 6 to move downward into the annular gap 4, and the salvage work can continue.

[0064] The lifting mechanism 6 is described in detail below:

[0065] In this embodiment, a guide rod 14 is fixed on the top of the annular net barrel 5 and moves through each slide bar 1209 in the vertical direction, which can guide the slide bar 1209 so that the slide bar 1209 can only move up and down along the limiting slide groove 13. A connecting ring 15 is fixedly connected to the upper end of each guide rod 14, and the lifting mechanism 6 is connected to the connecting ring 15.

[0066] The lifting mechanism 6 includes a mounting frame fixed to the outside of the processing box 1, on which a plurality of screws 601 arranged in the vertical direction are rotatably connected through the cooperation of bearings and shaft seats, and each screw 601 is arranged at equal intervals along the circumference of the processing box 1, and a motor 602 is installed on the mounting frame, which is transmission-connected to each screw 601, and a screw sleeve 603 is threadedly connected to each screw 601, and a connecting rod 16 that bypasses the top of the processing box 1 and is fixed to the connecting ring 15 is fixed to each screw sleeve 603. When the motor 602 is working, it drives the screw 601 to rotate, thereby driving the annular net barrel 5 to move up and down through the cooperation of the screw 601, the screw sleeve 603 and the connecting rod 16.

[0067] Embodiment 2: This embodiment also proposes a method for treating electroplating wastewater of metal products, which is applicable to the electroplating wastewater treatment equipment proposed in Embodiment 1, and comprises the following steps:

[0068] Step 1: inputting electroplating wastewater of metal products and reagents for treating electroplating wastewater into the treatment box 1;

[0069] Step 2: stirring the electroplating wastewater and reagents by means of the stirring mechanism 2;

[0070] Step 3: During the stirring process, the precipitate formed after the electroplating wastewater reacts with the reagent falls to the top of the precipitation platform 3;

[0071] Step 4: During the stirring process, the stirring mechanism 2 drives the cleaning rod 7 to rotate synchronously to sweep the sediment on the top of the sedimentation table 3 into the annular net barrel 5; since the top of the sedimentation table 3 is a truncated cone, the sediment can be smoothly swept into the annular net barrel 5.

[0072] Step 5: After a period of time, the lifting mechanism 6 drives the annular net barrel 5 to move upward to above the liquid surface, and the precipitate is fished out for subsequent treatment;

[0073] During the upward movement of the annular net barrel 5, the arc plate 1202 is in a horizontal state through the action of the torsion spring 1204, thereby blocking the arc opening 11 to prevent the sediment in the annular net barrel 5 from being scattered. Figure 4 shown.

[0074] When the annular net barrel 5 moves upward to the limit position, the annular top cover 10 moves downward to squeeze the sediment in the annular net barrel 5 to reduce the volume of the sediment for subsequent removal; at the same time, the waste liquid is squeezed into the treatment box 1 for subsequent centralized discharge. Figure 6 shown.

[0075] After the annular net barrel 5 moves downward, the staff lifts the annular top cover 10 upward to expose the inner cavity of the annular net barrel 5, so that the staff can take out the sediment in the annular net barrel 5 and send it to the subsequent process, such as Figure 7shown.

[0076] Step 6: After the treatment is completed, the lifting mechanism 6 drives the annular net barrel 5 to reset downward, and continues to stir, clean and fish out;

[0077] Step 7: After the sediment is completely removed, the treated waste liquid is discharged.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0079] 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. A metal product electroplating wastewater treatment device, comprising a treatment box (1) with an open top, wherein a stirring mechanism (2) is provided in the treatment box (1), characterized in that: Also includes: A precipitation table (3), wherein the precipitation table (3) is fixed to the inner bottom of the processing box (1) and has a top in the shape of a truncated cone that is narrow at the top and wide at the bottom, and an annular gap (4) is left between the outer wall of the precipitation table (3) and the inner wall of the processing box (1); An annular net barrel (5), the annular net barrel (5) is slidably arranged in the annular gap (4), and a lifting mechanism (6) connected to the annular net barrel (5) is arranged on the processing box (1); A cleaning rod (7) is fixedly connected to the stirring mechanism (2) and fits the top of the sedimentation platform (3), and is used to sweep the sediment on the top of the sedimentation platform (3) into the annular net barrel (5).

2. The electroplating wastewater treatment equipment for metal products according to claim 1, characterized in that: An annular sealing plate (8) is slidably arranged in the annular gap (4) and fits the bottom of the annular net barrel (5). A plurality of return springs (9) are connected between the bottom of the annular sealing plate (8) and the inner bottom of the processing box (1).

3. The electroplating wastewater treatment equipment for metal products according to claim 2, characterized in that: The bottom surface of the annular net barrel (5) is an outer conical surface that is wider at the top and narrower at the bottom, and the top surface of the annular sealing plate (8) is an inner conical surface that is wider at the top and narrower at the bottom.

4. The electroplating wastewater treatment equipment for metal products according to claim 1, characterized in that: An annular top cover (10) is fixed to the inner upper end of the annular net barrel (5) by means of magnetic attraction, a plurality of arc-shaped openings (11) are arranged at intervals along the circumferential direction on the annular top cover (10), and an opening and closing control mechanism (12) which is matched with each arc-shaped opening (11) is arranged on the annular top cover (10).

5. The electroplating wastewater treatment equipment for metal products according to claim 4, characterized in that: The annular top cover (10) is composed of an outer ring (1001), an inner ring (1002), and a plurality of connecting ribs (1003) fixed between the outer ring (1001) and the inner ring (1002) at intervals along the circumferential direction; the outer ring (1001) and the inner ring (1002) are both fixed to the annular net barrel (5) by magnetic attraction, and the arc-shaped opening (11) is formed by the gap between two adjacent connecting ribs (1003), the outer ring (1001), and the inner ring (1002).

6. The electroplating wastewater treatment equipment for metal products according to claim 5, characterized in that: The opening and closing control mechanism (12) comprises a rotating shaft (1201) rotatably connected between the outer ring (1001) and the inner ring (1002) and passing through the arc-shaped opening (11); an arc-shaped plate (1202) is fixed on the rotating shaft (1201); and a sealing ring (1203) adapted to the arc-shaped opening (11) is fixed on the outer side surface of the arc-shaped plate (1202).

7. The electroplating wastewater treatment equipment for metal products according to claim 6, characterized in that: The outer ring (1001) and the inner ring (1002) are both provided with cavities inside, and both ends of the rotating shaft (1201) extend to the inside of the outer ring (1001) and the inner ring (1002); The opening and closing control mechanism (12) further comprises a torsion spring (1204) located in the inner ring (1002), wherein one torsion arm of the torsion spring (1204) is connected to the rotating shaft (1201), and the other torsion arm of the torsion spring (1204) is connected to the inner ring (1002); A reel (1205) located inside the outer ring (1001) is fixed on the rotating shaft (1201), a pull rope (1206) is fixedly connected to the reel (1205), the pull rope (1206) moves vertically through the top of the outer ring (1001) and the upper end is fixedly connected to a pull rod (1207), a hollow column (1208) movably sleeved on the outer periphery of the pull rod (1207) is fixed on the top of the outer ring (1001); a sliding rod (1209) arranged in the horizontal direction is fixed at the upper end of the pulling rod (1207), and a limiting sliding groove (13) adapted to the sliding rod (1209) is provided in the vertical direction on the inner side wall of the processing box (1).

8. The electroplating wastewater treatment equipment for metal products according to claim 7, characterized in that: A guide rod (14) is fixed on the top of the annular net barrel (5) and moves vertically through each sliding rod (1209). A connecting ring (15) is fixedly connected to the upper end of each guide rod (14), and the lifting mechanism (6) is connected to the connecting ring (15).

9. The electroplating wastewater treatment equipment for metal products according to claim 8, characterized in that: The lifting mechanism (6) comprises a mounting frame fixed to the outside of the processing box (1), on which a plurality of screw rods (601) arranged in a vertical direction are rotatably connected through a bearing and a shaft seat, and the screw rods (601) are arranged at equal intervals along the circumference of the processing box (1). A motor (602) drivingly connected to the screw rods (601) is installed on the mounting frame, and a screw sleeve (603) is threadedly connected to each screw rod (601), and a connecting rod (16) that bypasses the top of the processing box (1) and is fixed to the connecting ring (15) is fixed to each screw sleeve (603).

10. A method for treating electroplating wastewater of metal products, applicable to the electroplating wastewater treatment equipment according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: inputting electroplating wastewater of metal products and reagents for treating electroplating wastewater into a treatment box (1); Step 2: stirring the electroplating wastewater and reagents by means of a stirring mechanism (2); Step 3: During the stirring process, the precipitate formed after the electroplating wastewater reacts with the reagent falls to the top of the precipitation platform (3); Step 4: During the stirring process, the stirring mechanism (2) drives the cleaning rod (7) to rotate synchronously to sweep the sediment on the top of the sedimentation table (3) into the annular net barrel (5); Step 5: After a period of time, the lifting mechanism (6) drives the annular net barrel (5) to move upward to above the liquid surface, and the precipitate is fished out for subsequent treatment; Step 6: After the treatment is completed, the lifting mechanism (6) drives the annular net bucket (5) to reset downwards, and the stirring, cleaning and scooping work continues; Step 7: After the sediment is completely removed, the treated waste liquid is discharged.

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