Electroplating wastewater rapid neutralization device

Abstract

The utility model relates to electroplating wastewater treatment technical field, especially in kind of electroplating wastewater fast neutralization device, including the neutralization jar body, the neutralization jar body is fixed on the neutralization support, is equipped with first feeding device in the neutralization jar body, its week measures and is equipped with second feeding device, first feeding device includes first conveying pipe, and first conveying pipe is connected second conveying pipe through a swivel joint, and the swivel joint is fixed in the bottom of neutralization jar body, the output end of second conveying pipe extends to the neutralization jar body, and is connected with a distribution tray in the output end of second conveying pipe, and a plurality of first liquid discharge pipes are distributed on the distribution tray, and first liquid discharge pipe is fixed on the distribution tray perpendicularly, and the distribution tray is the hollow structure, the utility model discloses a kind of electroplating wastewater fast neutralization device, can realize the contact fast mixing of electroplating wastewater and neutralization liquid, to improve the processing efficiency of electroplating wastewater.

Description

Technical Field

[0001] This utility model relates to the field of electroplating wastewater treatment technology, and in particular to a rapid neutralization device for electroplating wastewater. Background Technology

[0002] Electroplating wastewater contains heavy metal ions, acid and alkali wastewater, organic matter and suspended solids. The pickling and alkali washing processes in the pretreatment of electroplating use acidic substances such as sulfuric acid, hydrochloric acid and nitric acid as well as alkaline substances such as sodium hydroxide. The resulting cleaning wastewater is acidic or alkaline. The pH value of the cleaning wastewater deviates from neutral. Direct discharge will corrode pipes, disrupt the ecological balance of aquatic bodies and affect the survival of aquatic organisms.

[0003] Therefore, electroplating wastewater needs to be neutralized to adjust its pH to neutral before recycling. Existing electroplating wastewater neutralization devices have a problem with low contact mixing efficiency between the neutralizing liquid and the electroplating wastewater during the neutralization process, which reduces the treatment efficiency of electroplating wastewater. Utility Model Content

[0004] The purpose of this invention is to provide a rapid neutralization device for electroplating wastewater, which can achieve rapid contact and mixing of electroplating wastewater and neutralizing liquid, thereby improving the treatment efficiency of electroplating wastewater.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A rapid neutralization device for electroplating wastewater includes a neutralization tank body, which is fixed on a neutralization support. A first feeding device is provided inside the neutralization tank body, and a second feeding device is provided around its perimeter. The first feeding device includes a first conveying pipe, which is connected to the second conveying pipe through a rotary joint. The rotary joint is fixed to the bottom of the neutralization tank body.

[0007] The output end of the second conveying pipe extends into the neutralization tank. A liquid distribution plate is connected to the output end of the second conveying pipe. Several first drain pipes are distributed on the liquid distribution plate. The first drain pipes are vertically fixed on the liquid distribution plate. The liquid distribution plate has a hollow structure. Several drain holes are evenly opened on the first drain pipes.

[0008] The liquid distribution plate is rotatably installed inside the neutralization tank. A liquid outlet pipe is provided at the bottom of the neutralization tank. A first control valve is provided on the liquid outlet pipe, and a second control valve is provided on the second delivery pipe.

[0009] As an improvement: the second feeding device includes a plurality of second drain pipes, which are evenly distributed around the perimeter of the neutralization tank. A plurality of branch drain pipes are evenly distributed on the second drain pipes, and the output ends of the branch drain pipes extend into the interior of the neutralization tank.

[0010] As an improvement: an annular delivery pipe is connected to the inlet end of the second drain pipe, and a main delivery pipe is connected to the annular delivery pipe.

[0011] As an improvement: a stirring module is provided vertically downward at the top of the neutralization tank. The stirring module includes a stirring motor, which is fixed vertically downward at the top of the neutralization tank. A stirring rod is fixed on the rotor of the stirring motor, and the bottom of the stirring rod is fixed on the separatory plate.

[0012] Several stirring blades are fixed on the stirring rod.

[0013] As an improvement, a disc is provided at the top of the first drain pipe, and the disc is fixed on the stirring rod.

[0014] As an improvement: a plurality of first connecting rods are distributed on the stirring rod, a plurality of second connecting rods adapted to the second connecting rods are distributed on the second conveying pipe, and a stirring inclined plate is fixed between the first connecting rods and the second connecting rods.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The neutralizing liquid is injected into the distribution plate from the first and second conveying pipes. The distribution plate evenly conveys the neutralizing liquid into the interior of the neutralization tank through the drain hole on the first drain pipe. Then, the stirring motor is started to drive the distribution plate and the stirring fan blades to rotate, thereby quickly achieving contact mixing between the neutralizing liquid and the electroplating wastewater.

[0017] 2. The neutralizing liquid is transported from the annular conveying pipe to the second drain pipe, and then evenly injected into the interior of the neutralizing tank through the drain branch pipe. Then, the stirring motor is started to drive the stirring plate to rotate. Under the action of the stirring plate, the neutralizing liquid flowing out of the drain branch pipe can quickly and fully contact and mix with the electroplating wastewater on the inner wall of the neutralizing tank. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0019] Figure 1 A schematic diagram of the overall structure of a rapid neutralization device for electroplating wastewater;

[0020] Figure 2 This is a schematic cross-sectional view of a rapid neutralization device for electroplating wastewater.

[0021] The components are: 1. Neutralization tank; 2. Neutralization support; 3. First conveying pipe; 4. Rotary joint; 5. Second conveying pipe; 6. Separating plate; 7. First drain pipe; 8. Drain hole; 9. Outlet pipe; 10. First control valve; 11. Second control valve; 12. Stirring motor; 13. Stirring rod; 14. Stirring blade; 15. Disc; 16. Second drain pipe; 17. Drainage branch pipe; 18. Annular conveying pipe; 19. Main conveying pipe; 20. First connecting rod; 21. Second connecting rod; 22. Stirring inclined plate. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. Specific implementation method one:

[0024] Please refer to Figures 1-2 A rapid neutralization device for electroplating wastewater includes a neutralization tank 1, which is fixed on a neutralization support 2. A first feeding device is provided inside the neutralization tank 1, and a second feeding device is provided around its perimeter. The first feeding device includes a first conveying pipe 3, which is connected to the second conveying pipe 5 through a rotary joint 4. The rotary joint 4 is fixed at the bottom of the neutralization tank 1.

[0025] The output end of the second conveying pipe 5 extends into the neutralization tank 1. A liquid distribution plate 6 is connected to the output end of the second conveying pipe 5. Several first drain pipes 7 are distributed on the liquid distribution plate 6. The first drain pipes 7 are vertically fixed on the liquid distribution plate 6. The liquid distribution plate 6 has a hollow structure. Several drain holes 8 are evenly opened on the first drain pipes 7.

[0026] The separator plate 6 is rotatably disposed inside the neutralization tank 1. A liquid outlet pipe 9 is provided at the bottom of the neutralization tank 1. A first control valve 10 is provided on the liquid outlet pipe, and a second control valve 11 is provided on the second delivery pipe 5.

[0027] In this embodiment, the neutralizing liquid is injected into the liquid distribution plate 6 from the first conveying pipe 3 and the second conveying pipe 5. The liquid distribution plate 6 evenly conveys the neutralizing liquid into the interior of the neutralizing tank 1 through the drain hole 8 on the first drain pipe 7. Then, the stirring motor 12 is started to drive the liquid distribution plate 6 and the stirring fan blade 14 to rotate, thereby quickly realizing the contact mixing of the neutralizing liquid and the electroplating wastewater.

[0028] A stirring module is vertically downward mounted on the top of the neutralization tank 1. The stirring module includes a stirring motor 12, which is fixed vertically downward on the top of the neutralization tank 1. A stirring rod 13 is fixed on the rotor of the stirring motor 12, and the bottom of the stirring rod 13 is fixed on the liquid distribution plate 6. Several stirring blades 14 are fixed on the stirring rod 13. In this embodiment, the stirring motor 12 drives the stirring blades 14 to rotate, which can quickly bring the neutralized liquid discharged from the first drain pipe 7 into contact and mix with the electroplating wastewater in the middle of the neutralization tank 1.

[0029] A disc 15 is provided at the top of the first drain pipe 7, and the disc 15 is fixed to the stirring rod 13. In this embodiment, the disc 15 can improve the stability of the first drain pipe 7.

[0030] In this embodiment, the input end of the first delivery pipe 3 is connected to an external neutralizing liquid delivery pump.

[0031] Working principle: A certain amount of electroplating wastewater is injected into the neutralization tank 1, and then the neutralized liquid is injected into the distribution plate 6 through the first conveying pipe 3 and the second conveying pipe 5. The distribution plate 6 then injects the neutralized liquid into the middle of the neutralization tank 1 through the drain hole 8 on the first drain pipe 7. The stirring motor 12 is started to drive the distribution plate 6 and the stirring fan blade 14 to rotate, thereby quickly achieving full contact and mixing between the neutralized liquid and the electroplating wastewater. Specific Implementation Method Two:

[0033] Please refer to Figures 1-2 The second feeding device includes several second drain pipes 16, which are evenly distributed around the perimeter of the neutralization tank 1. Several branch drain pipes 17 are evenly distributed on the second drain pipes 16, and the output ends of the branch drain pipes 17 extend into the interior of the neutralization tank 1. An annular conveying pipe 18 is connected to the input end of the second drain pipe 16, and a main conveying pipe 19 is connected to the annular conveying pipe 18.

[0034] Several first connecting rods 20 are distributed on the stirring rod 13, and several second connecting rods 21 adapted to the second connecting rods 21 are distributed on the second conveying pipe 5. A stirring inclined plate 22 is fixed between the first connecting rods 20 and the second connecting rods 21.

[0035] In this embodiment, the input end of the main delivery pipe 19 is connected to an external neutralizing liquid delivery pump.

[0036] Working principle: The neutralizing liquid is transported from the annular conveying pipe 18 to the second drain pipe 16, and then evenly injected into the interior of the neutralizing tank 1 through the drain branch pipe 17. Then, the stirring motor 12 is started to drive the stirring plate 22 to rotate. Under the action of the stirring plate 22, the neutralizing liquid flowing out of the drain branch pipe 17 can quickly and fully contact and mix with the electroplating wastewater on the inner wall of the neutralizing tank 1.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A rapid neutralization device for electroplating wastewater, characterized in that, It includes a neutralization tank body, which is fixed on a neutralization support. A first feeding device is provided inside the neutralization tank body, and a second feeding device is provided on its periphery. The first feeding device includes a first conveying pipe, which is connected to the second conveying pipe through a rotary joint. The rotary joint is fixed to the bottom of the neutralization tank body. The output end of the second conveying pipe extends into the neutralization tank. A liquid distribution plate is connected to the output end of the second conveying pipe. Several first drain pipes are distributed on the liquid distribution plate. The first drain pipes are vertically fixed on the liquid distribution plate. The liquid distribution plate has a hollow structure. Several drain holes are evenly opened on the first drain pipes. The liquid distribution plate is rotatably installed inside the neutralization tank. A liquid outlet pipe is provided at the bottom of the neutralization tank. A first control valve is provided on the liquid outlet pipe, and a second control valve is provided on the second delivery pipe.

2. The rapid neutralization device for electroplating wastewater according to claim 1, characterized in that, The second feeding device includes a plurality of second drain pipes, which are evenly distributed around the perimeter of the neutralization tank. A plurality of branch drain pipes are evenly distributed on the second drain pipes, and the output ends of the branch drain pipes extend into the interior of the neutralization tank.

3. The rapid neutralization device for electroplating wastewater according to claim 2, characterized in that, An annular delivery pipe is connected to the inlet end of the second drain pipe, and a main delivery pipe is connected to the annular delivery pipe.

4. The rapid neutralization device for electroplating wastewater according to claim 1, characterized in that, A stirring module is vertically downward installed on the top of the neutralization tank. The stirring module includes a stirring motor, which is vertically downward fixed on the top of the neutralization tank. A stirring rod is fixed on the rotor of the stirring motor, and the bottom of the stirring rod is fixed on the liquid separator. Several stirring blades are fixed on the stirring rod.

5. The rapid neutralization device for electroplating wastewater according to claim 4, characterized in that, A disc is provided at the top of the first drain pipe, and the disc is fixed on the stirring rod.

6. The rapid neutralization device for electroplating wastewater according to claim 4, characterized in that, Several first connecting rods are distributed on the stirring rod, and several second connecting rods adapted to the second connecting rods are distributed on the second conveying pipe. A stirring inclined plate is fixed between the first connecting rods and the second connecting rods.

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