Magnesium hydroxide mixing device for heavy metal removal of nickel-cobalt wastewater

Abstract

The utility model belongs to the technical field of mixing equipment, and discloses a magnesium hydroxide mixing device for removing heavy matters in nickel-cobalt wastewater, which comprises a disperser and a mixing mechanism, the disperser comprises a first chamber and a second chamber which are communicated in sequence, the top of the first chamber is provided with a first feed port, a dispersing disc is arranged below the first feed port, and a second feed port is arranged below the second chamber. Through holes are evenly distributed in the dispersing disc, a high-pressure spray head is arranged on the side wall of the second cavity, the mixing mechanism comprises a mixing diverging pipe, the mixing diverging pipe is of a Venturi pipe structure and comprises a feeding pipe, a throat pipe and a diverging pipe which are sequentially communicated, and a second feeding port of the feeding pipe is connected with a discharging port of the disperser. According to the device, magnesium hydroxide is fully dispersed by utilizing the disperser, and the magnesium hydroxide and the nickel-cobalt wastewater are fully and uniformly mixed by combining with the Venturi tube structure of the mixing and dispersing tube.

Description

Technical Field

[0001] This utility model belongs to the field of mixing equipment technology, and specifically relates to a magnesium hydroxide mixing device for removing weight from nickel-cobalt wastewater. Background Technology

[0002] In the process of heavy metal removal from nickel-cobalt wastewater, the adsorption function of magnesium hydroxide is mainly utilized to adsorb heavy metal ions from the wastewater and separate them. Since magnesium hydroxide is viscous and difficult to mix evenly with nickel-cobalt wastewater, we propose a magnesium hydroxide mixing device for heavy metal removal from nickel-cobalt wastewater. Utility Model Content

[0003] The purpose of this invention is to provide a magnesium hydroxide mixing device for removing weight from nickel-cobalt wastewater, aiming to solve the technical problem in the background art that magnesium hydroxide and nickel-cobalt wastewater are not easily mixed evenly.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A magnesium hydroxide mixing device for weight removal from nickel-cobalt wastewater includes a disperser and a mixing mechanism. The disperser includes a first chamber and a second chamber connected in sequence. The first chamber has a first inlet at the top and a dispersing disc below the first inlet. The dispersing disc has through holes evenly distributed. The second chamber has a high-pressure nozzle on its side wall. The mixing mechanism includes a mixing and dispersing pipe with a Venturi tube structure. The mixing and dispersing pipe includes an inlet pipe, a throat pipe, and a dispersing pipe connected in sequence. The second inlet of the inlet pipe is connected to the outlet of the disperser.

[0006] The dispersion disc disperses magnesium hydroxide into multiple fine strips. The external water supply pipeline supplies water to the high-pressure nozzle. The high-pressure water sprayed from the high-pressure nozzle disperses the fine strips of magnesium hydroxide. The dispersed magnesium hydroxide is then introduced into the mixing and dispersion pipe to mix thoroughly with the nickel-cobalt wastewater. The venturi tube structure of the mixing and dispersion pipe facilitates uniform mixing of magnesium hydroxide and nickel-cobalt wastewater.

[0007] Furthermore, the end of the feed pipe is provided with a guide joint, which is used to connect the water supply pipeline of nickel-cobalt wastewater. The guide joint is conical in shape, and the tip opening of the guide joint is located at the connection between the feed pipe and the throat pipe. The pipe body at the connection between the feed pipe and the throat pipe is conical.

[0008] Nickel-cobalt wastewater is introduced into the feed pipe through the tip opening of the feed connector. The tank at the connection between the feed pipe and the throat forms a conical annular cavity. Magnesium hydroxide flows along the conical annular cavity to the throat and mixes with the nickel-cobalt wastewater.

[0009] Furthermore, it also includes a feeding mechanism, which includes a feeding chamber and a drive motor. The feeding chamber is provided with a third inlet and a spiral shaft rotatably connected thereto. Spiral blades are wound on the spiral shaft. One end of the spiral shaft is connected to the drive motor for transmission. The feeding chamber is connected to the first inlet.

[0010] Furthermore, the distance between the spiral blades and the inner wall of the feeding chamber is 1-3 mm.

[0011] Furthermore, the end of the spiral shaft is tapered, and the end of the feeding chamber is correspondingly tapered, with the tapered end of the feeding chamber connected to the first feed inlet.

[0012] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects.

[0013] 1. This utility model is equipped with a disperser and a mixing mechanism. Magnesium hydroxide is introduced into the disperser, and the dispersion disc disperses the magnesium hydroxide into multiple fine strips of material. High-pressure water sprayed from the high-pressure nozzle further disperses the multiple fine strips of magnesium hydroxide. The mixing and dispersing pipe in the mixing mechanism adopts a Venturi tube structure. Nickel-cobalt wastewater and magnesium hydroxide are introduced into the feed pipe and then mixed. The pressure difference caused by the change in flow velocity in the contraction section and the expansion section helps to fully and evenly mix the nickel-cobalt wastewater and magnesium hydroxide.

[0014] 2. The feed pipe is equipped with a feed connector for introducing nickel-cobalt wastewater. The feed connector adopts a conical structure, and the feed pipe is correspondingly equipped with a conical structure. A conical annular cavity is formed inside the conical tube of the feed pipe. Magnesium hydroxide flows along the conical annular cavity to the throat. At the same time, the nickel-cobalt wastewater is discharged through the tip opening of the feed connector, and magnesium hydroxide mixes with the nickel-cobalt wastewater. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure of the feeding mechanism, disperser and mixing mechanism in this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the disperser in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the mixing mechanism in this utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the feeding mechanism in this utility model.

[0019] In the diagram: 1. Disperser; 11. First inlet; 12. Outlet; 13. First chamber; 14. Second chamber; 15. Third chamber; 16. Dispersing disc; 161. Through hole; 17. High-pressure nozzle; 2. Mixing mechanism; 21. Mixing and dispersing pipe; 211. Feed pipe; 212. Throat pipe; 213. Dispersing pipe; 214. Second inlet; 22. Material guide joint; 3. Feeding mechanism; 31. Feeding chamber; 311. Third inlet; 312. Spiral shaft; 313. Spiral blade; 32. Coupling; 33. Drive motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Example 1

[0022] Reference Figures 1-3 A magnesium hydroxide mixing device for removing heavy metals from nickel-cobalt wastewater includes a disperser 1 and a mixing mechanism 2. Since magnesium hydroxide is viscous, the disperser 1 fully disperses the magnesium hydroxide and then introduces it into the mixing mechanism 2 to fully mix with the nickel-cobalt wastewater, thereby adsorbing heavy metal ions in the nickel-cobalt wastewater.

[0023] The disperser includes a first chamber 13, a second chamber 14, and a third chamber 15 connected sequentially from top to bottom. The first chamber 13 has a first inlet 11 at the top and a dispersing disc 16 below it. The dispersing disc 16 has through holes 161 evenly distributed on it. The dispersing disc 16 is used to disperse the magnesium hydroxide entering the disperser 1 into multiple fine strips of material. The side wall of the second chamber 14 is fitted with a high-pressure nozzle 17, which is sealed to the side wall of the second chamber 14. Multiple high-pressure nozzles 17 are evenly distributed around the side wall of the second chamber 14. An external water supply pipe supplies high-pressure water to the high-pressure nozzles 17. Under the impact of the high-pressure water, the fine strips of magnesium hydroxide are further dispersed. The third chamber 15 has a funnel-shaped structure and a discharge port 12 at the bottom.

[0024] The mixing mechanism 2 includes a mixing and dispersing pipe 21 and a material guide joint 22. The mixing and dispersing pipe 21 adopts a venturi tube structure and includes a feed pipe 211, a throat pipe 212 and a dispersing pipe 213 connected in sequence. The top of the feed pipe 211 is provided with a second feed port 214, which is connected to the discharge port 12 at the bottom of the disperser 1. One end of the feed pipe 211 is provided with an opening for introducing nickel-cobalt wastewater into the feed pipe 211, and the other end is connected to the throat pipe 212. The pipe body of the feed pipe 211 at the connection with the throat pipe 212 has a conical structure, forming a conical annular cavity contraction section. The dispersing pipe 213 is trumpet-shaped, forming an expansion section. The diameter of the dispersing pipe 213 gradually increases from the end connected to the throat pipe 212 to the other end.

[0025] The material guide joint 22 is located at the opening of the feed pipe 211. The material guide joint 22 has a conical structure and a material guide port at the tip of the material guide joint 22. The material guide port is close to the throat pipe 212. The other end of the material guide joint 22 is sealed to the feed pipe 211. The material guide joint 22 is used to connect to the water supply pipe for conveying nickel-cobalt wastewater. The nickel-cobalt wastewater is introduced into the feed pipe 211 through the material guide joint 22.

[0026] Example 2

[0027] Example 2 is an improvement based on Example 1.

[0028] Reference Figure 1 and 4 A magnesium hydroxide mixing device for removing weight from nickel-cobalt wastewater further includes a feeding mechanism 3. The feeding mechanism 3 includes a feeding chamber 31 and a drive motor 33. The top of the feeding chamber 31 is provided with a third inlet 311. A spiral shaft 312 passes through the feeding chamber 31. Spiral blades 313 are wound around the spiral shaft 312. The distance between the spiral blades 313 and the inner wall of the feeding chamber 31 is 1-3 mm. The output shaft of the drive motor 33 is connected to the spiral shaft 312 through a coupling 32. The end of the spiral shaft 312 is conical. Correspondingly, the feeding chamber 31 is conical at the end of the spiral shaft 312. The conical end of the feeding chamber 31 is connected to the first inlet 11 of the disperser 1.

[0029] The model and power of the drive motor 33 need to be selected comprehensively based on the specifications of the feeding mechanism (such as conveying capacity, speed, load characteristics), dynamic operating conditions (start and stop frequency, inertial load) and environmental requirements (temperature, protection level), combined with the efficiency, cost and technical compatibility of commercially available products.

[0030] When using the magnesium hydroxide mixing device for weight removal of nickel-cobalt wastewater:

[0031] Feeding mechanism 3: Magnesium hydroxide is introduced into the feeding chamber 31 through the third feed port 311. The drive motor 33 drives the screw shaft 312 to rotate through the coupling 32. The screw blades 313 uniformly convey magnesium hydroxide to the conical end of the feeding chamber 31 and then into the disperser 1.

[0032] Disperser 1: Magnesium hydroxide enters disperser 1 through the first feed port 11. The dispersion plate 16 disperses the magnesium hydroxide into multiple fine strips of material. The external water supply pipeline supplies water to the high-pressure nozzle 17. The high-pressure water sprayed from the high-pressure nozzle 17 further disperses the fine strips of magnesium hydroxide. The magnesium hydroxide is then introduced into the mixing and dispersing pipe 21 through the discharge port 12 at the bottom of disperser 1.

[0033] Mixing Mechanism 3: Magnesium hydroxide is introduced into the feed pipe 211 through the second inlet 214. Simultaneously, nickel-cobalt wastewater is introduced into the feed guide joint 22 through a pipeline. The nickel-cobalt wastewater enters the feed pipe 211 through the tip opening of the feed guide joint 22. The nickel-cobalt wastewater and magnesium hydroxide mix at the end of the feed pipe 211 and enter the throat 212. After passing through the throat 212, it enters the divergence pipe 213. Since the mixing and divergence pipe 21 adopts a Venturi tube structure, the pressure difference caused by the change in flow velocity between magnesium hydroxide and nickel-cobalt wastewater in the contraction and expansion sections helps to fully mix the two.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnesium hydroxide mixing device for gravimetric removal from nickel-cobalt wastewater, characterized in that, The device includes a disperser (1) and a mixing mechanism (2). The disperser (1) includes a first chamber (13) and a second chamber (14) connected in sequence. The first chamber (13) has a first inlet (11) at the top and a dispersing plate (16) below the first inlet (11). The dispersing plate (16) is evenly distributed with through holes (161). The second chamber (14) has a high-pressure nozzle (17) on its side wall. The mixing mechanism (2) includes a mixing and dispersing pipe (21). The mixing and dispersing pipe (21) adopts a venturi tube structure. The mixing and dispersing pipe (21) includes an inlet pipe (211), a throat pipe (212), and a dispersing pipe (213) connected in sequence. The second inlet (214) of the inlet pipe (211) is connected to the outlet (12) of the disperser (1).

2. The magnesium hydroxide mixing device as described in claim 1, characterized in that, The end of the feed pipe (211) is provided with a guide connector (22), which is used to connect the water supply pipeline of nickel-cobalt wastewater. The guide connector (22) is conical, and the tip opening of the guide connector (22) is located at the connection between the feed pipe (211) and the throat pipe (212). The pipe body at the connection between the feed pipe (211) and the throat pipe (212) is conical.

3. The magnesium hydroxide mixing device as described in claim 1, characterized in that, It also includes a feeding mechanism, which includes a feeding chamber (31) and a drive motor (33). The feeding chamber (31) is provided with a third feed inlet (311). The feeding chamber (31) is provided with a spiral shaft (312) rotatably connected to it. Spiral blades (313) are wound on the spiral shaft (312). One end of the spiral shaft (312) is connected to the drive motor (33) for transmission. The feeding chamber (31) is connected to the first feed inlet (11).

4. The magnesium hydroxide mixing device as described in claim 3, characterized in that, The distance between the spiral blade (313) and the inner wall of the feeding chamber (31) is 1-3 mm.

5. The magnesium hydroxide mixing device as described in claim 3, characterized in that, The end of the spiral shaft (312) is conical, and the end of the feeding chamber (31) is conical. The conical end of the feeding chamber (31) is connected to the first feed port (11).

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