Evaporation device for recycling electronickelling wastewater
By designing a reuse evaporation device for electroplating nickel wastewater and using multi-layer treatment to generate nickel sulfate crystals, the problem of high cost of electroplating nickel wastewater treatment in the prior art is solved, and the effect of nickel recycling and cost reduction is achieved.
Patent Information
- Application Number
- CN202422068612.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing electroplating nickel wastewater treatment technology requires a large amount of chemical costs, which increases the treatment costs and is relatively inconvenient.
An evaporation device for electroplating nickel wastewater reuse is designed to generate nickel sulfate crystals through multi-layer treatment, nickel ions are eluted with sulfuric acid solution, activated carbon adsorbs impurities, and the evaporator forms a nickel sulfate concentrate, and low-temperature crystallization is carried out in the condenser box.
Multi-layer treatment of nickel-containing wastewater is realized to generate nickel sulfate crystals, which facilitates nickel recycling, reduces treatment costs, and improves the practicality of the device.
Smart Images
Figure CN222975036U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electroplating nickel wastewater treatment, in particular to an evaporation device for recycling electroplating nickel wastewater. Background Technique
[0002] The evaporation device for recycling electroplating nickel wastewater is an environmental protection device used to treat electroplating nickel wastewater and realize the recycling and reuse of water resources. This device evaporates the water in the wastewater through the method of evaporation and concentration, leaving solid substances, and the evaporated clean water can be reused in the production process, so as to achieve the purpose of reducing wastewater discharge and saving water resources. At present, the treatment of nickel-containing wastewater requires a large amount of chemical agent costs, which increases the treatment cost and is rather inconvenient.
[0003] Therefore, it is necessary to design an evaporation device for recycling electroplating nickel wastewater that can perform multi-layer treatment on nickel-containing wastewater to generate nickel sulfate crystals, which is convenient for recycling nickel in nickel-containing wastewater, reduces the treatment cost, and improves the practicability of this device. Content of the Utility Model
[0004] In order to overcome the disadvantages that the current treatment of nickel-containing wastewater requires a large amount of chemical agent costs, increases the treatment cost, and is rather inconvenient, the utility model provides an evaporation device for recycling electroplating nickel wastewater that can perform multi-layer treatment on nickel-containing wastewater to generate nickel sulfate crystals, which is convenient for recycling nickel in nickel-containing wastewater, reduces the treatment cost, and improves the practicability of this device.
[0005] The technical solution is as follows: An evaporation device for recycling electroplating nickel wastewater includes a base, a treatment tank, a filter plate, a resin filter, a connecting pipe, a delivery pipe, a water pump, an activated carbon tank, an evaporator, a negative pressure vacuum pump, a condensing pipe, a feeding pipe, a condensing box, a closing cover, and a reflux pipe. The upper side of the left part of the base is connected with a treatment tank. A fresh water tank is opened at the rear of the treatment tank. The upper front part of the treatment tank is connected with a filter plate. The upper side of the left part of the base is connected with a plurality of resin filters. All the resin filters are located on the right side of the treatment tank. The resin filter at the forefront is connected with the treatment tank. Connecting pipes are connected between adjacent two resin filters. The front side of the resin filter at the forefront is connected with a delivery pipe. The lower left part of the delivery pipe is connected with a water pump. The other end of the delivery pipe is connected with an activated carbon tank. The activated carbon tank is connected with the base. The rear side of the activated carbon tank is connected with an evaporator through a connecting pipe. The evaporator is connected with the base. A negative pressure vacuum pump is connected to the connecting pipe. The upper side of the evaporator is connected with a condensing pipe. The condensing pipe is connected with the treatment tank. The upper right part of the evaporator is connected with a feeding pipe. The upper side of the right rear part of the base is connected with a condensing box. The condensing box is connected with the evaporator. The upper part of the condensing box is rotatably connected with a closing cover. A reflux pipe is connected between the lower part of the condensing box and the evaporator.
[0006] As a further preferred solution, a collecting pipe is provided at the lower right side of the resin filter at the forefront.
[0007] As a further preferred solution, a handle is provided on the upper side of the right part of the closing cover.
[0008] As a further preferred solution, it further includes a water inlet pipe, and a water inlet pipe is connected to the upper side of the resin filter at the rearmost side.
[0009] As a further preferred solution, it further includes a drain pipe, and a drain pipe is connected between the resin filter and the treatment tank.
[0010] As a further preferred solution, it further includes a plating tank, and a plating tank is connected to the upper side of the right part of the base.
[0011] The utility model has the following advantages: in the utility model, nickel ions are eluted from the resin filter by sulfuric acid solution to form a nickel-containing basic solution, then impurities are adsorbed by an activated carbon tank, sulfuric acid is added to an evaporator to form a concentrated nickel sulfate solution, and then low-temperature crystallization is carried out through a condensation box, so that multilayer treatment of nickel-containing wastewater can be achieved to generate nickel sulfate crystals, which is convenient for recycling nickel in the nickel-containing wastewater, reduces the treatment cost, and improves the practicability of the device. Description of the Drawings
[0012] Figure 1 is a three-dimensional structural schematic diagram of the utility model.
[0013] Figure 2 is a sectional three-dimensional structural schematic diagram of the utility model.
[0014] Wherein: 1 - base, 2 - treatment tank, 3 - fresh water tank, 4 - filter plate, 5 - resin filter, 6 - connecting pipe, 7 - water inlet pipe, 8 - drain pipe, 9 - conveying pipe, 10 - water pump, 11 - activated carbon tank, 12 - evaporator, 13 - negative pressure vacuum pump, 14 - condenser tube, 15 - feeding pipe, 16 - condensation box, 17 - closing cover, 18 - return pipe, 19 - plating tank. Detailed Embodiments
[0015] The following will further illustrate the present utility model with specific embodiments. It should also be noted that unless otherwise clearly defined and limited, terms such as: setting, installation, connection, and coupling should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0016] An evaporation device for recycling electroplating nickel wastewater, as Figure 1 and Figure 2As shown in the figure, it includes a base 1, a treatment tank 2, a filter plate 4, a resin filter 5, a connecting pipe 6, a water inlet pipe 7, a drain pipe 8, a conveying pipe 9, a water pump 10, an activated carbon tank 11, an evaporator 12, a negative pressure vacuum pump 13, a condensing pipe 14, a feeding pipe 15, a condensing box 16, a closing cover 17, a return pipe 18 and a plating tank 19. On the upper side of the left part of the base 1, there is a treatment tank 2 connected. At the rear of the treatment tank 2, there is a fresh water tank 3 opened. At the front upper part of the treatment tank 2, there is a filter plate 4 connected. On the upper side of the left part of the base 1, there are three resin filters 5 connected. At the lower right side of the frontmost resin filter 5, there is a collecting pipe provided for easy collection. The resin filters 5 are all located on the right side of the treatment tank 2. The frontmost resin filter 5 is connected to the treatment tank 2. Between adjacent two resin filters 5, there is a connecting pipe 6 connected. At the upper side of the rearmost resin filter 5, there is a water inlet pipe 7 connected. Between the resin filter 5 and the treatment tank 2, there is a drain pipe 8 connected. At the front side of the frontmost resin filter 5, there is a conveying pipe 9 connected. At the lower left part of the conveying pipe 9, there is a water pump 10 connected. The other end of the conveying pipe 9 is connected to an activated carbon tank 11. The activated carbon tank 11 is connected to the base 1. At the rear side of the activated carbon tank 11, there is an evaporator 12 connected through a connecting pipe. The evaporator 12 is connected to the base 1. On the connecting pipe, there is a negative pressure vacuum pump 13 connected. At the upper side of the evaporator 12, there is a condensing pipe 14 connected. The condensing pipe 14 is connected to the treatment tank 2. At the upper right part of the evaporator 12, there is a feeding pipe 15 connected. On the upper side of the right rear part of the base 1, there is a condensing box 16 connected. The condensing box 16 is connected to the evaporator 12. At the upper part of the condensing box 16, there is a closing cover 17 rotatably connected. At the upper right part of the closing cover 17, there is a handle provided for easy grasping and opening. Between the lower parts of the condensing box 16 and the evaporator 12, there is a return pipe 18 connected. On the upper side of the right part of the base 1, there is a plating tank 19 connected.
[0017] When using this device, first place the base 1 in the electroplating nickel wastewater reuse evaporation area, then pour the nickel-containing wastewater into the treatment tank 2, filter it through the filter plate 4, so that the nickel-containing wastewater enters the resin filter 5, and the nickel ions in the wastewater are adsorbed by the resin. The fresh water formed after filtration flows into the fresh water tank 3 through the drain pipe 8. After the resin is saturated with adsorption, 5% concentrated sulfuric acid is poured into the resin filter 5 through the water inlet pipe 7, and the nickel ions in the resin filter 5 are eluted by the sulfuric acid solution to form a nickel-containing basic solution with a nickel content of 2-3%. Then start the water pump 10, so that the nickel-containing basic solution enters the activated carbon tank 11 with a high iodine value through the delivery pipe 9. The activated carbon with a high iodine value will adsorb and treat impurities such as COD in the basic solution. Then the basic solution enters the evaporator 12 through the connecting pipe. The nickel content is further concentrated by the negative pressure vacuum pump 13. At the same time, a certain amount of 50% sulfuric acid is added in proportion through the feeding pipe 15 to form a nickel sulfate concentrated solution with a concentration value of 6-10%. Then the water vapor generated in the evaporator 12 forms fresh water through the condenser pipe 14 and is discharged into the fresh water tank 3. After that, the nickel sulfate concentrated solution will enter the condensation box 16. During the process of the environment at 10-12 degrees Celsius, nickel sulfate crystallization begins to form. The nickel sulfate concentrated solution is cryogenically crystallized. The excess water after crystallization enters the evaporator 12 through the return pipe 18 to continue evaporation. After the nickel sulfate crystallization is formed, turn the handle to open the closing cover 17, and then add the nickel sulfate crystallization into the electroplating tank 19 for use. After that, an external pipeline can be connected through the collection pipe, and then water is added into the resin filter 5 through the water inlet pipe 7 for water washing, so that the washing water enters the treatment tank 2 through the collection pipe and the external pipeline. Thus, the nickel-containing wastewater can be treated in multiple layers to generate nickel sulfate crystallization, which is convenient for recycling the nickel in the nickel-containing wastewater, reduces the treatment cost, and improves the practicability of this device.
[0018] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.
Claims
1. A nickel electroplating wastewater recycling evaporation device, characterized in that: The invention comprises a base (1), a treatment pool (2), a filter plate (4), a resin filter (5), a connecting pipe (6), a conveying pipe (9), a water pump (10), an activated carbon tank (11), an evaporator (12), a negative pressure vacuum pump (13), a condenser (14), a feeding pipe (15), a condensation box (16), a closing cover (17) and a reflux pipe (18). The upper left side of the base (1) is connected to the treatment pool (2). The rear part of the treatment pool (2) is provided with a fresh water tank (3). The upper front part of the treatment pool (2) is connected to the filter plate (4). The upper left side of the base (1) is connected to a plurality of resin filters (5). The resin filters (5) are all located on the right side of the treatment pool (2). The frontmost resin filter (5) is connected to the treatment pool (2). The connecting pipe (6) is connected between two adjacent resin filters (5). The front of the frontmost resin filter (5) is The side of the base (1) is connected to a delivery pipe (9), the lower left part of the delivery pipe (9) is connected to a water pump (10), the other end of the delivery pipe (9) is connected to an activated carbon tank (11), the activated carbon tank (11) is connected to the base (1), the rear side of the activated carbon tank (11) is connected to an evaporator (12) through a connecting pipe, the evaporator (12) is connected to the base (1), the connecting pipe is connected to a negative pressure vacuum pump (13), the upper side of the evaporator (12) is connected to a condenser (14), the condenser (14) is connected to the treatment tank (2), the upper right side of the evaporator (12) is connected to a feeding pipe (15), the upper right side of the base (1) is connected to a condenser box (16), the condenser box (16) is connected to the evaporator (12), the upper part of the condenser box (16) is rotatably connected to a closing cover (17), and a reflux pipe (18) is connected between the condenser box (16) and the lower part of the evaporator (12).
2. The nickel electroplating wastewater recycling evaporation device according to claim 1, characterized in that: A collecting tube is provided on the right side of the lower part of the frontmost resin filter (5).
3. A nickel electroplating wastewater recycling evaporation device as claimed in claim 2, characterized in that: A handle is provided on the upper right side of the closing cover (17).
4. A nickel electroplating wastewater recycling evaporation device as claimed in claim 3, characterized in that: It also includes a water inlet pipe (7), and the upper side of the rearmost resin filter (5) is connected to the water inlet pipe (7).
5. The nickel electroplating wastewater recycling evaporation device as claimed in claim 4, characterized in that: It also includes a drainage pipe (8), which is connected between the resin filter (5) and the treatment tank (2).
6. A nickel electroplating wastewater recycling evaporation device as claimed in claim 5, characterized in that: It also includes an electroplating tank (19), and the upper right side of the base (1) is connected to the electroplating tank (19).