Filtering device for cobalt-nickel hydrometallurgy wastewater

Abstract

The utility model provides a filtering device for cobalt-nickel hydrometallurgy wastewater, and belongs to the technical field of metallurgy wastewater filtering devices. The cobalt-nickel hydrometallurgy wastewater filtering device comprises a filtering cylinder, a liquid inlet pipe is connected to the center of the top of the filtering cylinder, the bottom end of the liquid inlet pipe is arranged in the filtering cylinder and connected with a liquid guide mechanism, a sieve plate is arranged at the position, below the liquid guide mechanism, in the filtering cylinder, and a cleaning mechanism is arranged at the top of the sieve plate. A drainage pipe is arranged at the bottom end of the side wall of the filter cartridge. According to the filtering device for the cobalt-nickel-copper hydrometallurgy waste water in the embodiment of the utility model, the cobalt-nickel-copper hydrometallurgy waste water in the liquid inlet pipe enters the cylinder through the arranged liquid guide mechanism, the waste water is distributed into the four liquid distribution pipes through flow division of the liquid guide mechanism, then the waste water flows in the liquid distribution pipes, liquid is discharged from the liquid outlet pipe, and the waste water is uniformly distributed into the filtering cylinder; the wastewater filtering efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of metallurgical wastewater filtering devices, and in particular, to a filtering device for cobalt-nickel hydrometallurgical wastewater. Background Art

[0002] Industrial wastewater is inevitably generated during the hydrometallurgical process of cobalt, nickel, and copper nonferrous metals, primarily including leaching wastewater, extraction wastewater, synthetic precipitation wastewater, and other wastewater. After treatment, the metals contained in these wastewaters are primarily precipitated as hydroxides to form wastewater slag. Since these wastewater slags contain valuable metals such as cobalt, nickel, copper, and zinc, improper treatment will cause secondary pollution to the environment. Simply storing them without treatment will occupy a large amount of land and cost money to manage and store. The wastewater must first be filtered for solid particulate matter. However, due to the irrational design of existing metallurgical wastewater filtration devices, their filtration efficiency is very low and they are prone to clogging during use, making them very inconvenient to use. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides a filtering device for cobalt-nickel hydrometallurgical wastewater, which aims to improve the problem of wastewater gathering in one place during filtration in the prior art, affecting the filtering effect.

[0004] The present application provides a filtering device for cobalt-nickel hydrometallurgical wastewater, comprising a filter cartridge, a liquid inlet pipe connected to the center of the top of the filter cartridge, the bottom end of the liquid inlet pipe being placed in the filter cartridge and connected to a liquid guide mechanism, a sieve plate being provided inside the filter cartridge below the liquid guide mechanism, a cleaning mechanism being provided on the top of the sieve plate, and a drain pipe being provided at the bottom end of the side wall of the filter cartridge;

[0005] The liquid guide mechanism includes a cylinder, the top end of the cylinder is connected to the bottom end of the liquid inlet pipe, the cylinder and the liquid inlet pipe are connected to each other, four liquid dispensing pipes are arranged on the outer wall of the cylinder at equal intervals along the circumferential direction, the liquid dispensing pipes are connected to the cylinder, and a plurality of liquid outlet pipes are arranged at the bottom of the liquid dispensing pipe along the length direction;

[0006] The cleaning mechanism includes a fixed plate and a scraper, the scraper is placed on the top of the sieve plate, the scraper is attached to the sieve plate, a fixed plate is provided above the scraper, a reset component is provided between the fixed plate and the scraper, and a driving component is provided between the cleaning mechanism and the liquid guide mechanism.

[0007] In a specific embodiment, the liquid outlet pipe includes a liquid outlet cover connected to the liquid dispensing pipe, and a liquid outlet is provided at the bottom end of the liquid outlet cover.

[0008] In a specific embodiment, the liquid separation tube is arranged at an angle, and the height of the liquid separation tube gradually decreases along the cylinder toward the inner wall of the filter cylinder.

[0009] In a specific embodiment, the reset assembly includes a guide column, a spring and a limit block. The guide columns are fixedly connected on both sides of the top of the scraper. A through hole corresponding to the position of the guide column is opened on the fixed plate. The top of the guide column passes through the through hole and is fixedly connected to the limit block. The spring is arranged between the fixed plate and the scraper, and the spring is sleeved on the outside of the guide column.

[0010] In a specific embodiment, the drive assembly includes a turbine and a rotating shaft. The turbine is arranged inside the cylinder. The bottom end of the turbine is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the cylinder. The bottom end of the rotating shaft is fixedly connected to the top center of the fixed plate.

[0011] In a specific embodiment, a primary filter screen is provided inside the filter cartridge below the sieve plate, and a secondary filter screen is provided inside the filter cartridge below the primary filter screen.

[0012] Beneficial effects:

[0013] 1. The filtering device for cobalt-nickel-copper hydrometallurgical wastewater in the embodiment of the utility model allows the cobalt-nickel-copper hydrometallurgical wastewater in the liquid inlet pipe to enter the cylinder through the provided liquid guiding mechanism, and the wastewater is distributed to four liquid separation pipes through its diversion. Then the wastewater flows in the liquid separation pipes and is discharged from the liquid outlet pipe, and the wastewater is evenly distributed in the filter cylinder, thereby improving the wastewater filtration efficiency.

[0014] 2. The filtering device for cobalt-nickel-copper hydrometallurgical wastewater in the embodiment of the utility model is provided with a driving assembly and a cleaning mechanism. When the wastewater falls from the liquid inlet pipe into the cylinder for diversion, the wastewater drives the turbine to rotate, thereby driving the rotating shaft to rotate through the turbine, and driving the cleaning mechanism to rotate through the rotating shaft to clean the sieve plate. No driving parts are required, thus saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic cross-sectional view of a filtering device for cobalt-nickel-copper hydrometallurgical wastewater provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the structure of the liquid guide mechanism of the filtering device for cobalt-nickel-copper hydrometallurgical wastewater provided in an embodiment of the present application;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of area A.

[0019] In the figure: 1-filter cartridge; 2-liquid inlet pipe; 3-liquid guiding mechanism; 301-cylinder; 302-turbine; 303-rotating shaft; 304-liquid dispensing pipe; 305-liquid outlet pipe; 3051-liquid outlet cover; 3052-liquid outlet; 4-sieve plate; 5-primary filter screen; 6-secondary filter screen; 7-drain pipe; 8-cleaning mechanism; 801-fixed plate; 8011-through hole; 802-scraper; 803-guide column; 804-spring; 805-limiting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0021] See also Figure 1-3 The present application provides a filtering device for cobalt-nickel hydrometallurgical wastewater, comprising a filter cartridge 1, a liquid inlet pipe 2 being connected at the center of the top of the filter cartridge 1, the bottom end of the liquid inlet pipe 2 being placed in the filter cartridge 1 and connected to a liquid guide mechanism 3, a sieve plate 4 being provided below the liquid guide mechanism 3 inside the filter cartridge 1, a cleaning mechanism 8 being provided on the top of the sieve plate 4, a primary filter screen 5 being provided below the sieve plate 4 inside the filter cartridge 1, a secondary filter screen 6 being provided below the primary filter screen 5 inside the filter cartridge 1, a drain pipe 7 being provided at the bottom end of the side wall of the filter cartridge 1, and the filtering device. When filtering cobalt-nickel-copper hydrometallurgical wastewater, the cobalt-nickel-copper hydrometallurgical wastewater is transported to the liquid guiding mechanism 3 through the liquid inlet pipe 2, and the cobalt-nickel-copper hydrometallurgical wastewater is evenly distributed into the filter cylinder 1 through the liquid guiding mechanism 3, thereby increasing the contact area between the wastewater and the sieve plate 4, and avoiding the problem that the wastewater is concentrated on only one place of the sieve plate 4 during filtration, resulting in the problem that some areas of the sieve plate 4 filter more wastewater and the rest of the area filter less wastewater, thereby improving the filtering effect of the wastewater, and the cleaning mechanism 8 can be used to clean the sieve plate 4 to avoid clogging of the sieve plate 4 and ensure smooth filtration of the wastewater.

[0022] In a preferred example of this application, please refer to Figure 2 The primary filter screen 5 is made of non-woven filter cotton, and the secondary filter screen 6 is made of glass fiber filter cotton. The cobalt-nickel-copper hydrometallurgical wastewater is further finely filtered through the primary filter screen 5 and the secondary filter screen 6 to improve the filtering effect of the cobalt-nickel-copper hydrometallurgical wastewater.

[0023] Among them, see Figure 2In this embodiment, the liquid guiding mechanism 3 includes a cylinder 301, the top of the cylinder 301 is connected to the bottom end of the liquid inlet pipe 2, the cylinder 301 and the liquid inlet pipe 2 are designed to be interconnected, and four liquid separation pipes 304 are arranged on the outer wall of the cylinder 301 at equal intervals in the circumferential direction. The liquid separation pipes 304 and the cylinder 301 are designed to be interconnected. A plurality of liquid outlet pipes 305 are arranged at the bottom of the liquid separation pipe 304 along the length direction. The cobalt-nickel-copper hydrometallurgical wastewater in the liquid inlet pipe 2 enters the cylinder 301, and the wastewater is distributed to the four liquid separation pipes 304 through its diversion. Then the wastewater flows in the liquid separation pipe 304 and discharges from the liquid outlet pipe 305, and the wastewater is evenly distributed to the filter cylinder 1, thereby improving the wastewater filtration efficiency.

[0024] In a preferred example of this application, please refer to Figure 2 The liquid outlet pipe 305 includes a liquid outlet cover 3051 connected to the liquid distribution pipe 304, and a liquid outlet 3052 is provided at the bottom of the liquid outlet cover 3051. The liquid outlet pipe 305 can collect more wastewater and discharge it from the liquid outlet pipe 305 through the design of the liquid outlet cover 3051.

[0025] In a preferred example of this application, please refer to Figure 2 The liquid dispensing tube 304 is tilted, and the height of the liquid dispensing tube 304 gradually decreases along the cylinder 301 toward the inner wall of the filter cartridge 1 . The tilted liquid dispensing tube 304 allows the liquid to flow and be discharged in the liquid dispensing tube 304 .

[0026] In some embodiments of the present invention, the inclination angle of the separatory tube 304 is 15°-25°, so that the wastewater does not flow too fast in the separatory tube 304 . An opening is provided at one end of the separatory tube 304 away from the cylinder 301 .

[0027] Second, see Figure 1 and Figure 3 The scraper 802 is placed on the top of the sieve plate 4, and the scraper 802 is attached to the sieve plate 4. A fixed plate 801 is provided above the scraper 802, and a reset component is provided between the fixed plate 801 and the scraper 802. The reset component includes a guide post 803, a spring 804 and a limit block 805. The guide posts 803 are fixedly connected to both sides of the top of the scraper 802, and a through hole 8011 corresponding to the position of the guide post 803 is opened on the fixed plate 801. The top of the guide post 803 passes through the through hole 8011 and is fixedly connected to the limit block 805. The spring 804 is provided between the fixed plate 801 and the scraper 802, and the spring 804 is sleeved on the outside of the guide post 803. The scraper 802 is always attached to the sieve plate 4 through the action of the spring 804 and the guide post 803, and then the sieve plate 4 is cleaned by the rotation of the scraper 802 to avoid the problem of clogging of the sieve plate 4.

[0028] In order to drive the cleaning mechanism 8 to rotate for cleaning, a driving assembly is provided between the cleaning mechanism 8 and the liquid guiding mechanism 3. The driving assembly includes a turbine 302 and a rotating shaft 303. The turbine 302 is arranged inside the cylinder 301. The bottom end of the turbine 302 is fixedly connected to the rotating shaft 303. The rotating shaft 303 is rotatably connected to the cylinder 301. The bottom end of the rotating shaft 303 is fixedly connected to the top center of the fixed plate 801. When the wastewater falls into the cylinder 301 from the liquid inlet pipe 2 for diversion, the wastewater drives the turbine 302 to rotate, thereby driving the rotating shaft 303 to rotate through the turbine 302, and driving the cleaning mechanism 8 to rotate through the rotating shaft 303 to clean the sieve plate 4. No driving parts are required, saving energy.

[0029] When the cobalt-nickel hydrometallurgical wastewater filtering device is in use: when filtering the cobalt-nickel-copper hydrometallurgical wastewater, the cobalt-nickel-copper hydrometallurgical wastewater is transported into the cylinder 301 through the liquid inlet pipe 2, and the wastewater is distributed into four liquid separation pipes 304 through its diversion, and then the wastewater flows in the liquid separation pipes 304 and discharges from the liquid outlet pipe 305, and the wastewater is evenly distributed into the filter cylinder 1, thereby improving the wastewater filtration efficiency, filtering large particles of impurities in the wastewater through the sieve plate 4, and further finely filtering the cobalt-nickel-copper hydrometallurgical wastewater through the primary filter screen 5 and the secondary filter screen 6, thereby improving the filtration effect of the cobalt-nickel-copper hydrometallurgical wastewater, and the filtered wastewater is discharged from the drain pipe 7, and when the wastewater falls into the cylinder 301 from the liquid inlet pipe 2 for diversion, the wastewater drives the turbine 302 to rotate, thereby driving the rotating shaft 303 to rotate through the turbine 302, and driving the cleaning mechanism 8 to rotate through the rotating shaft 303.

[0030] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

Claims

1. A filtering device for cobalt-nickel hydrometallurgical wastewater, characterized in that: The invention comprises a filter cartridge (1), wherein a liquid inlet pipe (2) is connected to the center of the top of the filter cartridge (1), the bottom end of the liquid inlet pipe (2) is placed in the filter cartridge (1) and is connected to a liquid guide mechanism (3), a sieve plate (4) is provided inside the filter cartridge (1) below the liquid guide mechanism (3), a cleaning mechanism (8) is provided on the top of the sieve plate (4), and a drain pipe (7) is provided at the bottom end of the side wall of the filter cartridge (1); The liquid guiding mechanism (3) comprises a cylinder (301), the top end of the cylinder (301) is connected to the bottom end of the liquid inlet pipe (2), the cylinder (301) and the liquid inlet pipe (2) are arranged in communication with each other, four liquid dispensing pipes (304) are arranged at equal intervals along the circumferential direction on the outer wall of the cylinder (301), the liquid dispensing pipes (304) and the cylinder (301) are arranged in communication with each other, and a plurality of liquid outlet pipes (305) are arranged at the bottom of the liquid dispensing pipe (304) along the length direction; The cleaning mechanism (8) comprises a fixed plate (801) and a scraper (802); the scraper (802) is placed on top of the sieve plate (4); the scraper (802) is attached to the sieve plate (4); a fixed plate (801) is provided above the scraper (802); a reset assembly is provided between the fixed plate (801) and the scraper (802); and a driving assembly is provided between the cleaning mechanism (8) and the liquid guiding mechanism (3).

2. A filtering device for cobalt-nickel hydrometallurgical wastewater according to claim 1, characterized in that: The liquid outlet pipe (305) includes a liquid outlet cover (3051) connected to the liquid dispensing pipe (304), and a liquid outlet (3052) is provided at the bottom end of the liquid outlet cover (3051).

3. A filtering device for cobalt-nickel hydrometallurgical wastewater according to claim 1, characterized in that: The liquid separation tube (304) is arranged at an angle, and the height of the liquid separation tube (304) gradually decreases along the cylinder (301) toward the inner wall of the filter cylinder (1).

4. The filtering device for cobalt-nickel hydrometallurgical wastewater according to claim 1, characterized in that: The reset assembly comprises a guide column (803), a spring (804) and a limit block (805); the guide columns (803) are fixedly connected to both sides of the top of the scraper (802); a through hole (8011) corresponding to the position of the guide column (803) is opened on the fixed plate (801); the top of the guide column (803) passes through the through hole (8011) and is fixedly connected to the limit block (805); the spring (804) is arranged between the fixed plate (801) and the scraper (802); and the spring (804) is sleeved on the outside of the guide column (803).

5. The filtering device for cobalt-nickel hydrometallurgical wastewater according to claim 1, characterized in that: The driving assembly includes a turbine (302) and a rotating shaft (303). The turbine (302) is arranged inside the cylinder (301). The bottom end of the turbine (302) is fixedly connected to the rotating shaft (303). The rotating shaft (303) is rotatably connected to the cylinder (301). The bottom end of the rotating shaft (303) is fixedly connected to the top center of the fixed plate (801).

6. A filtering device for cobalt-nickel hydrometallurgical wastewater according to any one of claims 1 to 5, characterized in that: A primary filter screen (5) is provided inside the filter cartridge (1) below the sieve plate (4), and a secondary filter screen (6) is provided inside the filter cartridge (1) below the primary filter screen (5).

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