Electroplating wastewater nickel recovery pretreatment device

Abstract

The utility model discloses a kind of electroplating wastewater nickel recovery pretreatment device, it is related to electroplating wastewater pretreatment technical field.The utility model includes filter component and adjusting component, adjusting component includes adjusting cylinder, detects float and acid injection assembly, the outlet end of filter component is communicated with adjusting cylinder lower end side wall, detects float vertical sliding sleeve is connected in adjusting cylinder, acid injection assembly is set in adjusting cylinder side and is communicated with adjusting cylinder.The utility model detects float on by adjusting cylinder, while acid injection assembly constantly injects acidic solution into adjusting cylinder, so that the electroplating wastewater PH value in adjusting cylinder reduces;The PH value in the electroplating wastewater in adjusting cylinder is detected in real time by detecting float, when the PH in electroplating wastewater reaches set value, make detecting float stop floating up, make the acidic solution that acid injection assembly injects keep constant, and electroplating wastewater in adjusting cylinder is extracted from adjusting cylinder, improve the efficiency of pretreatment.

Description

Technical Field

[0001] This utility model belongs to the field of electroplating wastewater pretreatment technology, and in particular relates to a nickel recovery pretreatment device for electroplating wastewater. Background Technology

[0002] Recovering nickel from electroplating wastewater is an environmentally and economically valuable endeavor. The principle behind electrolytic recovery is to reduce nickel ions in the wastewater to metallic nickel. However, this process requires pretreatment, including filtration and pH adjustment to prevent interference from impurities and to prevent premature hydrolysis and precipitation of heavy metal ions. The pH adjustment in this pretreatment stage involves continuously adding acidic solution and monitoring until the pH reaches the required range. This process is cumbersome and inefficient.

[0003] To address these issues, we provide a nickel recovery pretreatment device for electroplating wastewater. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for nickel recovery from electroplating wastewater. This device connects to an adjusting component at the outlet of a coarse filter. A detection float is vertically slidably connected inside an adjusting cylinder within the adjusting component. An acid injection assembly is installed on one side of the adjusting cylinder. Filtered electroplating wastewater enters the adjusting cylinder, causing the detection float to rise. Simultaneously, the acid injection assembly continuously injects acidic solution into the adjusting cylinder, lowering the pH value of the wastewater. The detection float monitors the pH value of the wastewater in the adjusting cylinder in real time. When the pH reaches a set value, the detection float stops rising, maintaining a constant supply of acidic solution. The wastewater is then extracted from the adjusting cylinder, completing the pretreatment of the electroplating wastewater. This eliminates the tedious process of repeatedly monitoring the pH value and continuously adding acidic solution, thus improving the efficiency of pretreatment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a pretreatment device for nickel recovery from electroplating wastewater, including a coarse filtration component and an adjustment component. The adjustment component includes an adjustment cylinder, a detection float, and an acid injection assembly. The adjustment cylinder is a cylindrical structure with an open top and a closed bottom. The outlet end of the coarse filtration component is connected to the lower side wall of the adjustment cylinder. The detection float is vertically slidably sleeved inside the adjustment cylinder. The acid injection assembly is located on the side of the adjustment cylinder and is connected to the adjustment cylinder.

[0007] A further feature of this invention is that the coarse filtration component includes a water pump, a coarse filter basket, and a basket sleeve. The upper end of the basket sleeve is connected to the outlet end of the water pump via a flange. The coarse filter basket is a tube structure with one end closed and the other end open. A set of coarse filter basket holes are provided through the side wall and the closed end of the coarse filter basket. A threaded sleeve is fixed to the outer wall of the open end of the coarse filter basket. The threaded sleeve is screwed into the inner wall of the basket sleeve near the water pump. The end of the basket sleeve away from the water pump is connected to the lower side wall of the regulating cylinder.

[0008] A further feature of this invention is that the acid injection assembly includes an acid injection cylinder and a cylinder end cap. The acid injection cylinder is a cylindrical structure with an open top and a closed bottom. The cylinder end cap covers the upper end of the acid injection cylinder. An acid injection pipe is connected to the upper end of the cylinder end cap. A set of acid injection branch pipes are vertically arrayed on one side wall of the acid injection cylinder. The acid injection branch pipes penetrate the side wall of the regulating cylinder and extend into the regulating cylinder.

[0009] A further feature of this invention is that the detection float includes a float plate, a pH sensor, and a filtration hose. The float plate is vertically slidably fitted inside the regulating cylinder. The detection end of the pH sensor extends to the lower end of the float plate. One end of the filtration hose penetrates the surface of the float plate, and the end of the filtration hose away from the float plate extends out of the regulating cylinder.

[0010] A further feature of this invention is that a branch pipe cover plate is fixedly installed on the upper edge of the float plate. A branch pipe cover groove is opened on the side of the branch pipe cover plate near the wall of the regulating cylinder. The branch pipe cover groove penetrates the float plate downward and is vertically slidably sleeved on the end face of the acid injection branch pipe assembly that extends into the regulating cylinder.

[0011] A further feature of this invention is that a motor is installed at the lower end of the bottom of the regulating cylinder, and a rotating paddle is rotatably installed inside the bottom of the regulating cylinder. A set of stirring vertical plates are fixedly arranged in a circumferential array on the outer side of the shaft of the rotating paddle, and the shaft of the rotating paddle is coupled to the motor for transmission.

[0012] A further feature of this invention is that the upper end of the regulating cylinder is covered with a dust cover, the branch pipe cover plate slides vertically through the dust cover, and the suction hose passes through the dust cover.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model connects an adjustment component to the outlet end of the coarse filter component, and a detection float is vertically slidably sleeved inside the adjustment cylinder of the adjustment component. An acid injection component is set on one side of the adjustment cylinder. The electroplating wastewater after filtration enters the adjustment cylinder, causing the detection float inside the adjustment cylinder to float up. At the same time, the acid injection component continuously injects acidic solution into the adjustment cylinder, thereby reducing the pH value of the electroplating wastewater inside the adjustment cylinder.

[0015] 2. This utility model uses a detection float to monitor the pH value of the electroplating wastewater in the regulating cylinder in real time. When the pH value of the electroplating wastewater reaches the set value, the detection float stops rising, keeping the acid solution injected by the acid injection component constant. The electroplating wastewater in the regulating cylinder is then extracted, completing the pretreatment of the electroplating wastewater. This eliminates the tedious operation of repeatedly monitoring the pH value of the electroplating wastewater and continuously adding acid solution, thus improving the efficiency of pretreatment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of a pretreatment device for nickel recovery from electroplating wastewater.

[0018] Figure 2 This is an exploded view of the coarse filter component.

[0019] Figure 3 This is a front view of the acid injection assembly and the regulating cylinder.

[0020] Figure 4 This is an exploded view of the regulating cylinder and the detection float.

[0021] Figure 5 This is a side sectional view of the adjustment component.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Coarse filtration component, 101-Water pump, 102-Coarse filter basket, 102a-Coarse filter basket hole, 102b-Threaded sleeve, 103-Basket sleeve, 2-Adjusting component, 201-Adjusting cylinder, 201a-Motor, 201b-Rotating paddle, 201b-1-Stirring vertical plate, 201c-Dust cover, 202-Detection float, 202a-Float plate, 202a-1-Branch pipe cover plate, 202a-2-Branch pipe cover groove, 202b-pH sensor, 202c-Suction filtration hose, 203-Acid injection component, 203a-Acid injection cylinder, 203a-1-Acid injection branch pipe, 203b-Cylinder end cap, 203b-1-Acid injection pipeline. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1

[0026] Please see Figure 1 and Figure 2This utility model relates to a pretreatment device for nickel recovery from electroplating wastewater, comprising a coarse filtration component 1 and an adjustment component 2. The adjustment component 2 includes an adjustment cylinder 201, a detection float 202, and an acid injection assembly 203. The adjustment component 2 is connected to the outlet end of the coarse filtration component 1. The detection float 202 is vertically slidably connected inside the adjustment cylinder 201 in the adjustment component 2. The acid injection assembly 203 is arranged on one side of the adjustment cylinder 201. The filtered electroplating wastewater enters the adjustment cylinder 201, causing the detection float 202 inside the adjustment cylinder 201 to float upwards. At the same time, the acid injection assembly 203 continuously injects acid into the adjustment cylinder. An acidic solution is injected into the regulating cylinder 201 to lower the pH value of the electroplating wastewater. The pH value of the electroplating wastewater in the regulating cylinder 201 is monitored in real time by a detection float 202. When the pH value of the electroplating wastewater reaches the set value, the detection float 202 stops floating, keeping the acidic solution injected by the acid injection component 203 constant. The electroplating wastewater in the regulating cylinder 201 is then extracted, completing the pretreatment of the electroplating wastewater. This eliminates the tedious operation of repeatedly monitoring the pH value of the electroplating wastewater and continuously adding acidic solution, thus improving the efficiency of pretreatment.

[0027] Specifically, the regulating cylinder 201 is a cylindrical structure with an open top and a closed bottom. The outlet end of the coarse filter component 1 is connected to the lower side wall of the regulating cylinder 201. The detection float 202 is vertically slidably sleeved inside the regulating cylinder 201. The acid injection component 203 is set on the side of the regulating cylinder 201 and is connected to the regulating cylinder 201.

[0028] Furthermore, the coarse filter component 1 includes a water pump 101, a coarse filter basket 102, and a basket sleeve 103. The upper end of the basket sleeve 103 is connected to the outlet end of the water pump 101 via a flange. The coarse filter basket 102 is a tube structure with one end closed and the other end open. A set of coarse filter basket holes 102a are provided through the side wall and the closed end of the coarse filter basket 102. A threaded sleeve 102b is fixed to the outer wall of the open end of the coarse filter basket 102. The threaded sleeve 102b is screwed into the inner wall of the basket sleeve 103 near the end of the water pump 101. The end of the basket sleeve 103 away from the water pump 101 is connected to the lower side wall of the regulating cylinder 201. The water pump 101 draws the electroplating wastewater into the coarse filter basket 102. After filtration by the coarse filter basket 102, the impurities in the electroplating wastewater are retained in the coarse filter basket 102, preventing the impurities from affecting nickel recovery.

[0029] The operation process in this embodiment is as follows:

[0030] Pump 101 draws electroplating wastewater into coarse filter basket 102. After filtration by coarse filter basket 102, impurities in the electroplating wastewater are retained in coarse filter basket 102 to prevent impurities from affecting nickel recovery. The filtered electroplating wastewater enters regulating cylinder 201, causing the detection float 202 in regulating cylinder 201 to float. At the same time, acid injection component 203 continuously injects acidic solution into regulating cylinder 201, lowering the pH value of the electroplating wastewater in regulating cylinder 201. Detection float 202 monitors the pH value of the electroplating wastewater in regulating cylinder 201 in real time. When the pH value of the electroplating wastewater reaches the set value, detection float 202 stops floating, keeping the acidic solution injected by acid injection component 203 constant. The electroplating wastewater in regulating cylinder 201 is then extracted from regulating cylinder 201, completing the pretreatment of the electroplating wastewater.

[0031] Example 2

[0032] Please see Figures 1 to 5 Based on Example 1, the acid injection assembly 203 includes an acid injection cylinder 203a and a cylinder end cap 203b. The detection float 202 includes a float plate 202a, a pH sensor 202b, and a suction filter hose 202c. Acidic solution is continuously injected into the regulating cylinder 201 through the vertical array of acid injection branch pipes 203a-1 on the side wall of the acid injection cylinder 203a, so that the pH of the electroplating wastewater in the regulating cylinder 201 is reduced. As the float plate 202a continues to rise, more acid injection branch pipes 203a-1 are opened and acidic solution is injected into the regulating cylinder 201 until the pH of the electroplating wastewater drops to the required range, so that the float plate 202a of the detection float 202 stops rising and the electroplating wastewater in the regulating cylinder 201 is extracted.

[0033] Specifically, the acid injection cylinder 203a is a cylindrical structure with an open top and a closed bottom. The cylinder end cap 203b covers the upper end of the acid injection cylinder 203a. The upper end of the cylinder end cap 203b is connected to the acid injection pipe 203b-1. A set of acid injection branch pipes 203a-1 are vertically arrayed on one side wall of the acid injection cylinder 203a. The acid injection branch pipes 203a-1 penetrate the side wall of the regulating cylinder 201 and extend into the regulating cylinder 201.

[0034] Furthermore, the float 202a is vertically slidably sleeved inside the regulating cylinder 201, the detection end of the pH sensor 202b extends to the lower end of the float 202a, one end of the filtration hose 202c penetrates the surface of the float 202a, and the end of the filtration hose 202c away from the float 202a extends out of the regulating cylinder 201. The pH sensor 202b detects the pH value of the electroplating wastewater in the regulating cylinder 201 in real time. When the pH value of the electroplating wastewater drops to the required range, the float 202a stops floating, and at the same time, the filtration hose 202c extracts the electroplating wastewater from the regulating cylinder 201.

[0035] Furthermore, a branch pipe cover plate 202a-1 is fixedly installed upward from the upper edge of the float plate 202a. A branch pipe cover groove 202a-2 is formed on the side of the branch pipe cover plate 202a-1 near the wall of the regulating cylinder 201. The branch pipe cover groove 202a-2 penetrates downward through the float plate 202a and slides vertically onto one end face of the acid injection branch pipe 203a-1 group extending into the regulating cylinder 201. The branch pipe cover plate 202a-1 covers one end of the acid injection branch pipe 203a-1, preventing the acidic solution in the acid injection cylinder 203a from leaking out. Acid flows out of branch pipe 203a-1. As the electroplating wastewater in regulating cylinder 201 increases, float plate 202a rises continuously, causing branch pipe cover plate 202a-1 to slide upwards, opening more acid injection branch pipes 203a-1 and injecting acidic solution into regulating cylinder 201. This further lowers the pH value of the electroplating wastewater in regulating cylinder 201. When the pH value of the electroplating wastewater reaches the required range, float plate 202a stops rising, maintaining the amount of acidic solution injected into regulating cylinder 201, and the electroplating wastewater with the pH value adjusted is extracted from regulating cylinder 201.

[0036] Furthermore, a motor 201a is installed at the lower bottom of the regulating cylinder 201, and a rotating paddle 201b is rotatably installed inside the bottom of the regulating cylinder 201. A set of stirring vertical plates 201b-1 are fixedly arranged in a circumferential array on the outer side of the shaft of the rotating paddle 201b. The shaft of the rotating paddle 201b is coupled and driven by the motor 201a. The motor 201a drives the rotating paddle 201b to rotate, and drives the stirring vertical plates 201b-1 to rotate, so that the stirring vertical plates 201b-1 can fully mix the electroplating wastewater and the acidic solution.

[0037] Furthermore, the upper end of the regulating cylinder 201 is covered with a dust cover 201c, the branch pipe cover plate 202a-1 slides vertically through the dust cover 201c, and the suction filter hose 202c passes through the dust cover 201c.

[0038] The operation process in this embodiment is as follows:

[0039] After filtration, the acidic solution continuously enters the regulating cylinder 201, causing the float 202a to rise continuously. During the rising process of the float 202a, the branch pipe cover 202a-1 slides upward, opening more acid injection branch pipes 203a-1, allowing the acidic solution to be injected into the regulating cylinder 201, further reducing the pH value of the electroplating wastewater in the regulating cylinder 201. When the pH value of the electroplating wastewater reaches the required range, the float 202a stops rising, maintaining the amount of acidic solution injected into the regulating cylinder 201, and the electroplating wastewater with the pH value adjusted is extracted from the regulating cylinder 201.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A pretreatment device for nickel recovery from electroplating wastewater, comprising a coarse filter (1) and an adjustment component (2), characterized in that: The regulating component (2) includes a regulating cylinder (201), a detection float (202), and an acid injection assembly (203). The regulating cylinder (201) is a cylindrical structure with an open top and a closed bottom. The outlet end of the coarse filter component (1) is connected to the lower side wall of the regulating cylinder (201). The detection float (202) is vertically slidably sleeved inside the regulating cylinder (201). The acid injection assembly (203) is disposed on the side of the regulating cylinder (201) and is connected to the regulating cylinder (201).

2. The electroplating wastewater nickel recovery pretreatment device according to claim 1, characterized in that: The coarse filter component (1) includes a water pump (101), a coarse filter basket (102), and a basket sleeve (103). The upper end of the basket sleeve (103) is connected to the outlet end of the water pump (101) through a flange. The coarse filter basket (102) is a tube structure with one end closed and the other end open. A set of coarse filter basket holes (102a) are provided through the side wall and the closed end of the coarse filter basket (102). A threaded sleeve (102b) is fixed on the outer wall of the open end of the coarse filter basket (102). The threaded sleeve (102b) is screwed into the inner wall of the basket sleeve (103) near the end of the water pump (101). The end of the basket sleeve (103) away from the water pump (101) is connected to the lower side wall of the regulating cylinder (201).

3. The electroplating wastewater nickel recovery pretreatment device according to claim 1, characterized in that: The acid injection assembly (203) includes an acid injection cylinder (203a) and a cylinder end cap (203b). The acid injection cylinder (203a) is a cylindrical structure with an open top and a closed bottom. The cylinder end cap (203b) covers the upper end of the acid injection cylinder (203a). The upper end of the cylinder end cap (203b) is connected to an acid injection pipe (203b-1). A set of acid injection branch pipes (203a-1) are vertically arrayed on one side wall of the acid injection cylinder (203a). The acid injection branch pipes (203a-1) penetrate the side wall of the regulating cylinder (201) and extend into the regulating cylinder (201).

4. The electroplating wastewater nickel recovery pretreatment device according to claim 3, characterized in that: The detection float (202) includes a float plate (202a), a pH sensor (202b), and a filtration hose (202c). The float plate (202a) is vertically slidably sleeved inside the regulating cylinder (201). The detection end of the pH sensor (202b) extends to the lower end of the float plate (202a). One end of the filtration hose (202c) penetrates the surface of the float plate (202a), and the end of the filtration hose (202c) away from the float plate (202a) extends out of the regulating cylinder (201).

5. The electroplating wastewater nickel recovery pretreatment device according to claim 4, characterized in that: A branch pipe cover plate (202a-1) is fixedly installed on the upper edge of the float plate (202a). A branch pipe cover groove (202a-2) is opened on the side of the branch pipe cover plate (202a-1) near the wall of the regulating cylinder (201). The branch pipe cover groove (202a-2) penetrates the float plate (202a) downward. The branch pipe cover groove (202a-2) is vertically slidably sleeved on the end face of the acid injection branch pipe (203a-1) group that extends into the regulating cylinder (201).

6. The electroplating wastewater nickel recovery pretreatment device according to claim 5, characterized in that: A motor (201a) is provided at the lower bottom of the regulating cylinder (201), and a rotating paddle (201b) is rotatably installed inside the bottom of the regulating cylinder (201). A set of stirring vertical plates (201b-1) are fixedly arranged in a circumferential array on the outer side of the shaft of the rotating paddle (201b). The shaft of the rotating paddle (201b) is coupled and driven by the motor (201a).

7. The electroplating wastewater nickel recovery pretreatment device according to claim 6, characterized in that: The upper end of the regulating cylinder (201) is covered with a dust cover (201c), the branch pipe cover plate (202a-1) slides vertically through the dust cover (201c), and the suction filter hose (202c) passes through the dust cover (201c).

Images