Hot water slag washing equipment for purification

Abstract

The hot water slag washing equipment for purification comprises a discharging mechanism and a slag washing mechanism, leaching slag is poured into a discharging cage net through a feeding port, acid washing liquid is injected into a slag washing sleeve, a motor is started to drive a rotating plate and the slag washing sleeve to rotate integrally, washing water is heated through a heating ring to accelerate dissolution of the leaching slag, and the leaching slag is washed through the washing water. A stirring plate at the bottom of the discharging cage net can further stir an acid washing solution, so that lithium ions in leaching residues are fully dissolved, the residue washing effect on recycled materials is ensured, and insoluble solid impurities can be thrown to the discharging cage net and the side end of the residue washing sleeve while a rotating plate and the residue washing sleeve rotate integrally; the pickling solution is firstly pumped out through the liquid pumping device, then the motor is closed, and the pickling solution without impurities can be pumped out under the condition that filtering is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to hot water slag washing equipment for purification. Background Art

[0002] In the liquid preparation section of lithium battery recycling, waste lithium iron phosphate powder is added to the slurry tank, mixed with washing water to form a slurry, and then the lithium iron phosphate slurry is pumped into the leaching tank, and concentrated sulfuric acid is added to the leaching tank and oxygen is introduced for stirring and leaching. The pH value is maintained in the range of 0.5-1.5 during the leaching process, and the concentrated sulfuric acid is used to exotherm and heat up, and the temperature is kept constant at 85-90°C by steam. Through the leaching reaction, Li is produced as lithium sulfate, and P and Fe are produced in the form of iron phosphate precipitation. The leached slurry is separated into solid and liquid by a leaching residue filter press, and the leaching residue is washed to recover the soluble lithium in the residue.

[0003] When recovering soluble lithium in the leached residue, the recovered liquid needs to be filtered multiple times due to the large amount of solid impurities in the leached residue. Utility Model Content

[0004] The utility model aims to provide a hot water slag washing device for purification, so as to solve the technical problem that when recovering soluble lithium in leached slag in the prior art, the recovered liquid needs to be filtered for many times due to the large amount of solid impurities in the leached slag.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] A slag washing device for purification with hot water, comprising:

[0007] The material discharging mechanism comprises a material discharging cage net, a material feeding port is provided at one end of the material discharging cage net, a bottom plate is fixedly connected to the other end of the material discharging cage net, a support is arranged in the material discharging cage net, one end of the support is fixedly connected to the bottom plate, and the other end of the support is fixedly connected to the mounting plate, and stirring plates are evenly distributed in an annular manner on the bottom surface of the material discharging cage net, and the stirring plates are fixedly connected to the bottom surface of the material discharging cage net;

[0008] The slag washing mechanism comprises a base, a rotating plate is arranged on the base, a motor is arranged in the base, the driving end of the motor is arranged coaxially with the rotating plate, the upper end of the rotating plate is coaxially arranged and fixedly connected with a slag washing sleeve, and the unloading mechanism is arranged in the slag washing sleeve.

[0009] As a further solution of the utility model: connecting plates are symmetrically arranged and fixedly connected on the side walls of the mounting plate, connecting columns are fixedly connected on the connecting plates, and the connecting columns are fixedly connected to the side walls of the feeding cage net.

[0010] As a further solution of the utility model: a bearing chamber is provided on the upper end surface of the base, and a support bearing is arranged in the bearing chamber.

[0011] As a further solution of the utility model: the outer ring of the support bearing is fixedly connected to the bottom surface of the bearing chamber, and the inner ring of the support bearing is fixedly connected to the rotating plate.

[0012] As a further solution of the utility model: the motor is embedded and fixedly connected to the base, the driving end of the motor is coaxially fixedly connected to the transmission shaft, and the transmission shaft is coaxially fixedly connected to the rotating plate.

[0013] As a further solution of the utility model: a base bracket is fixedly connected to the lower end of the base.

[0014] As a further solution of the utility model: a heating ring is coaxially arranged and fixedly connected on the inner wall of the slag washing sleeve.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model pours the leached residue into the feeding cage through the feeding port, injects the acidic washing liquid into the slag washing sleeve, turns on the motor to drive the rotating plate and the slag washing sleeve to rotate as a whole, heats the washing water through the heating ring to accelerate the dissolution of the leached residue, and the stirring plate at the bottom of the feeding cage can further stir the acidic washing liquid, so that the lithium ions in the leached residue are fully dissolved to ensure the slag washing effect on the recycled material. While the rotating plate and the slag washing sleeve rotate as a whole, the solid impurities that cannot be tolerated can be thrown to the feeding cage and the side end of the slag washing sleeve. When the cleaning is almost finished, the pickling liquid is firstly extracted by the liquid extraction device and then the motor is turned off, and the pickling liquid without impurities can be extracted without filtering;

[0017] 2. The bottom surface of the feeding cage net of the utility model is provided with a bottom plate. By arranging a mounting plate, a connecting plate and a connecting column, and then connecting the mounting plate and the bottom plate through a support, the overall structural strength of the device can be enhanced to prevent the deformation of the feeding cage net caused by the collision of the leached slag during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the feeding mechanism of the utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the feeding mechanism of the utility model. Figure 1 .

[0023] In the figure: 1. unloading mechanism; 11. support; 12. bottom plate; 13. mounting plate; 14. connecting plate; 15. connecting column; 16. unloading cage net; 17. feeding port; 18. stirring plate; 2. slag washing mechanism; 21. rotating plate; 22. slag washing sleeve; 23. heating ring; 24. base; 25. supporting bearing; 26. motor; 27. transmission shaft; 28. base bracket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 4 As shown, a hot water slag washing equipment for purification includes a feeding mechanism 1 and a slag washing mechanism 2. The feeding mechanism 1 includes a feeding cage net 16. A feeding port 17 is opened at one end of the feeding cage net 16. The other end of the feeding cage net 16 is fixedly connected to a bottom plate 12. A pillar 11 is arranged in the feeding cage net 16. One end of the pillar 11 is fixedly connected to the bottom plate 12. The other end of the pillar 11 is fixedly connected to a mounting plate 13. A stirring plate 18 is evenly distributed in an annular shape on the bottom surface of the feeding cage net 16. The stirring plate 18 is fixedly connected to the bottom surface of the feeding cage net 16. The slag washing mechanism 2 includes a base 24. A rotating plate 21 is arranged on the base 24. A motor 26 is arranged in the base 24. The driving end of the motor 26 is coaxially arranged with the rotating plate 21. The upper end of the rotating plate 21 is coaxially arranged and fixedly connected with a slag washing sleeve 22. The feeding mechanism 1 is arranged in the slag washing sleeve 22.

[0026] A lifting mechanism is provided on the mounting plate 13, and a lifting end of the lifting mechanism is fixedly connected to the mounting plate 13. For example, the lifting mechanism includes a cylinder, a telescopic rod and a mounting bracket. The cylinder is fixedly installed on the mounting bracket, and the driving end of the cylinder is fixedly connected to the telescopic rod, and the telescopic rod is fixedly connected to the mounting plate 13. The lifting and lowering of the unloading mechanism 1 is realized by the lifting mechanism, and the unloading mechanism 1 is fixed relative to the slag washing mechanism 2.

[0027] A connecting plate 14 is symmetrically arranged and fixedly connected on the side wall of the mounting plate 13, a connecting column 15 is fixedly connected to the connecting plate 14, the connecting column 15 is fixedly connected to the side wall of the unloading cage net 16, and a bottom plate 12 is arranged on the bottom surface of the unloading cage net 16. By arranging the mounting plate 13, the connecting plate 14 and the connecting column 15, and then connecting the mounting plate 13 and the bottom plate 12 through the support 11, the overall structural strength of the device can be enhanced.

[0028] A bearing chamber is provided on the upper end surface of the base 24, and a support bearing 25 is arranged in the bearing chamber. The outer ring of the support bearing 25 is fixedly connected to the bottom surface of the bearing chamber, and the inner ring of the support bearing 25 is fixedly connected to the rotating plate 21. The inner ring and the outer ring of the support bearing 25 can rotate relative to each other, and at the same time, the structure on the base 24 can be supported as a whole. The motor 26 is embedded in and fixedly connected to the base 24, and the driving end of the motor 26 is coaxially fixedly connected to a transmission shaft 27, and the transmission shaft 27 is coaxially fixedly connected to the rotating plate 21. The lower end of the base 24 is fixedly connected to a base bracket 28, and the stability of the overall operation of the device can be ensured by the base bracket 28. A heating ring 23 is coaxially arranged and fixedly connected on the inner wall of the slag washing sleeve 22.

[0029] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0030] The leached residue is poured into the feeding cage net 16 through the feed port 17, and the acidic washing liquid is injected into the slag washing sleeve 22. The motor 26 is turned on to drive the rotating plate 21 and the slag washing sleeve 22 to rotate as a whole. The washing water is heated by the heating ring 23 to accelerate the dissolution of the leached residue. The stirring plate 18 at the bottom of the feeding cage net 16 can further stir the acidic washing liquid, so that the lithium ions in the leached residue are fully dissolved to ensure the slag washing effect on the recycled material. The rotating plate 21 and the slag washing sleeve 22 can be rotated as a whole. The solid impurities that cannot be tolerated can be thrown to the side ends of the feeding cage net 16 and the slag washing sleeve 22. When the cleaning is almost finished, the pickling liquid is firstly extracted by the liquid extraction device and then the motor 26 is turned off. The pickling liquid without impurities can be extracted without filtering;

[0031] A bottom plate 12 is provided on the bottom surface of the feeding cage net 16. By arranging a mounting plate 13, a connecting plate 14 and a connecting column 15, and then connecting the mounting plate 13 and the bottom plate 12 through a support 11, the overall structural strength of the device can be enhanced to prevent the deformation of the feeding cage net 16 caused by the collision of the leached slag during the cleaning process.

[0032] Several embodiments of the utility model are described in detail above, but the embodiments of the utility model are not limited thereto and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A hot water slag washing device for purification, characterized in that: include: The material discharging mechanism (1) comprises a material discharging cage net (16), one end of which is provided with a material feeding port (17), the other end of which is fixedly connected to a bottom plate (12), a support (11) is arranged inside the material discharging cage net (16), one end of which is fixedly connected to the bottom plate (12), the other end of which is fixedly connected to a mounting plate (13), and a stirring plate (18) is evenly distributed in an annular shape on the bottom surface of the material discharging cage net (16), and the stirring plate (18) is fixedly connected to the bottom surface of the material discharging cage net (16); The slag washing mechanism (2) comprises a base (24), a rotating plate (21) is arranged on the base (24), a motor (26) is arranged in the base (24), a driving end of the motor (26) is coaxially arranged with the rotating plate (21), the upper end of the rotating plate (21) is coaxially arranged and fixedly connected with a slag washing sleeve (22), and the unloading mechanism (1) is arranged in the slag washing sleeve (22).

2. A hot water slag washing equipment for purification according to claim 1, characterized in that: A connecting plate (14) is symmetrically arranged on and fixedly connected to the side wall of the mounting plate (13), a connecting column (15) is fixedly connected to the connecting plate (14), and the connecting column (15) is fixedly connected to the side wall of the feeding cage net (16).

3. A hot water slag washing equipment for purification according to claim 1, characterized in that: A bearing chamber is provided on the upper end surface of the base (24), and a support bearing (25) is arranged in the bearing chamber.

4. A hot water slag washing equipment for purification according to claim 2, characterized in that: The outer ring of the support bearing (25) is fixedly connected to the bottom surface of the bearing chamber, and the inner ring of the support bearing (25) is fixedly connected to the rotating plate (21).

5. The hot water slag washing equipment for purification according to claim 1, characterized in that: The motor (26) is embedded in and fixedly connected to the base (24); the driving end of the motor (26) is coaxially fixedly connected to a transmission shaft (27); and the transmission shaft (27) is coaxially fixedly connected to the rotating plate (21).

6. A hot water slag washing equipment for purification according to claim 1, characterized in that: The lower end of the base (24) is fixedly connected with a base bracket (28).

7. A hot water slag washing equipment for purification according to claim 1, characterized in that: A heating ring (23) is coaxially arranged and fixedly connected on the inner wall of the slag washing sleeve (22).

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