Lithium hexafluorophosphate production wastewater treatment device

Abstract

The utility model relates to the field of lithium hexafluorophosphate production wastewater treatment, and discloses a lithium hexafluorophosphate production wastewater treatment device which comprises a base, the top end of the base is fixedly connected with a mixing barrel, the top end of the mixing barrel is provided with a barrel cover, the top end of the barrel cover is fixedly connected with a driving motor, a stirring assembly is arranged in the mixing barrel, and the stirring assembly is connected with the driving motor. The stirring assembly comprises a stirring shaft, the top end of the stirring shaft is fixedly connected to the bottom end of an output shaft of the driving motor, the outer wall of the stirring shaft is rotatably connected to the inner wall of the middle of the barrel cover, a rotating shell is rotatably connected to the outer wall of the top end of the stirring shaft, and a main gear is fixedly connected to the bottom end of the stirring shaft; a stirring rod I is fixedly connected to the outer wall, close to the bottom end of the barrel cover, of the stirring shaft. According to the utility model, the driving motor drives the stirring rod I and the stirring rod II in the stirring assembly to stir wastewater and a treatment agent in the mixing barrel in opposite directions, so that the wastewater and the treatment agent are fully mixed, and the mixing efficiency is improved, thereby improving the wastewater treatment efficiency.

Description

Technical Field

[0001] The utility model relates to the field of lithium hexafluorophosphate production wastewater treatment, in particular to a lithium hexafluorophosphate production wastewater treatment device. Background Art

[0002] With the rise of smart mobile devices, the application market for lithium batteries is huge, bringing about huge demand for lithium battery production capacity. As the most important conductive medium in the lithium battery industry, lithium hexafluorophosphate is widely used in the lithium battery industry. However, a large amount of wastewater will be generated during the production process of lithium hexafluorophosphate. This wastewater has the characteristics of high concentration, complex composition, very strong irritating odor, high pollution, and high difficulty in treatment.

[0003] A search revealed that Chinese patent publication number CN220413119U discloses a lithium hexafluorophosphate production wastewater treatment device, comprising an alkali precipitation mechanism, a filter press, a flocculation mechanism, and a resin adsorption mechanism. The alkali precipitation mechanism comprises a reaction tank, a feeding drum, and a first water pump; the inlet of the filter press is connected to the outlet of the first water pump; the flocculation mechanism comprises a mixer and a flocculation tank; and the resin adsorption mechanism comprises a defluorination pipeline filled with a defluorination resin. The beneficial effects of the present invention are as follows: lime milk is introduced into the wastewater to react with fluoride ions and phosphates in the wastewater to generate calcium fluoride and calcium hydroxyphosphate precipitates, which are then introduced into a filter press for solid-liquid separation, and then into a mixer and a flocculation tank to accelerate the precipitation of calcium fluoride and calcium hydroxyphosphate, thereby improving wastewater treatment efficiency. The resulting supernatant is then introduced into the defluorination pipeline, where the defluorination resin further adsorbs residual fluoride ions and filters calcium hydroxyphosphate particles, ensuring that both fluoride and phosphorus in the final effluent meet discharge standards.

[0004] In the above technology, although the wastewater treatment efficiency is improved, the supernatant obtained by treatment is then passed into the defluorination pipeline, and the residual fluoride ions are further adsorbed and the hydroxy calcium phosphate particles are filtered through the defluorination resin to ensure that the fluorine and phosphorus in the final effluent can meet the discharge standards. However, the driving stirring shaft in the above device rotates unidirectionally, and the unidirectional stirring can only make the stirring component rotate in a single direction, which may lead to the singleness of the fluid flow in the reaction tank, the stirring effect is not sufficient and uniform, and the mixing efficiency is reduced, thereby reducing the wastewater treatment efficiency. For this reason, a lithium hexafluorophosphate production wastewater treatment device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a lithium hexafluorophosphate production wastewater treatment device, which aims to improve the problem in the prior art that "one-way stirring may lead to the singleness of fluid flow in the reaction tank, the stirring effect is not sufficient and uniform, and the mixing efficiency is reduced, thereby reducing the wastewater treatment efficiency."

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lithium hexafluorophosphate production wastewater treatment device, comprising a base, the top of the base is fixedly connected to a mixing barrel, the top of the mixing barrel is provided with a barrel cover, the top of the barrel cover is fixedly connected to a drive motor, a stirring assembly is provided inside the mixing barrel, the stirring assembly includes a stirring shaft, the top of the stirring shaft is fixedly connected to the bottom end of the drive motor output shaft, the outer wall of the stirring shaft is rotatably connected to the inner wall of the middle part of the barrel cover, the outer wall of the top of the stirring shaft is rotatably connected to a rotating shell, and the bottom end of the stirring shaft is fixedly connected to a main gear.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the stirring shaft near the bottom end of the barrel cover is fixedly connected to a stirring rod 1, and the side of the stirring rod 1 near the stirring shaft is fixedly connected to a spoiler. The outer wall of the rotating shell is fixedly connected to a stirring rod 2. There are multiple groups of spoilers, and the multiple groups of spoilers are conveniently arranged on the outer walls of stirring rod 1 and stirring rod 2.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the main gear is meshed with a sub-gear, and the sub-gear is provided in three groups. The outer walls of the three groups of sub-gears are meshed with gear rings, and the outer sides of the gear rings are fixedly connected to the inner wall of the rotating shell.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the secondary gear is fixedly connected with a connecting rod, the outer wall of the bottom end of the connecting rod is provided with a bearing, and the outer wall of the bearing is fixedly connected with a connecting plate.

[0013] As a further description of the above technical solution:

[0014] A limiting assembly is provided on the inner wall of the base, and the limiting assembly includes a limiting rod, the top end of the limiting rod is fixedly connected to the bottom end of the connecting plate, and the outer wall of the top end of the limiting rod is rotatably connected to the inner wall of the bottom side of the rotating shell, and the bottom end of the limiting rod is fixedly connected to the limiting tooth.

[0015] As a further description of the above technical solution:

[0016] A sleeve is fixedly connected to the inner wall of the bottom side of the base near the bottom end of the limiting rod, and a slider is slidably connected to the inner wall of the sleeve. The slider and the sleeve are elastically connected through a reset spring.

[0017] As a further description of the above technical solution:

[0018] A through groove is provided on the inner wall of the sleeve close to the top end of the slider, and a limiting groove is provided on the top end of the slider.

[0019] As a further description of the above technical solution:

[0020] One side of the limiting tooth is arranged obliquely, and the limiting tooth slides on the inner wall of the limiting groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by cooperating with the stirring assembly and the limiting assembly, the driving motor drives the stirring rod 1 and the stirring rod 2 in the stirring assembly to stir the wastewater and the treatment agent inside the mixing barrel in opposite directions, so that they are fully mixed, thereby improving the wastewater treatment efficiency.

[0023] 2. In the present invention, by using the limit assembly and the limit rod in conjunction, when maintaining the stirring assembly, the limit assembly can quickly release the restriction on the limit rod, so that the stirring assembly can be quickly removed, reducing the maintenance difficulty of the equipment and improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 This is a front perspective cross-sectional diagram of the mixing barrel of the present invention;

[0026] Figure 3 This is a front-view three-dimensional structural cross-sectional diagram of the transfer shell of the present invention;

[0027] Figure 4 This is a front-view three-dimensional structural cross-sectional diagram of the sleeve in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting rod and the limiting teeth in the utility model.

[0029] Legend:

[0030] 1. Base; 2. Mixing barrel; 3. Barrel cover; 4. Drive motor; 51. Stirring shaft; 52. Rotating shell; 53. Stirring rod 1; 54. Main gear; 55. Sub-gear; 56. Ring gear; 57. Connecting rod; 58. Connecting plate; 59. Stirring rod 2; 61. Limiting rod; 62. Limiting tooth; 63. Sleeve; 64. Slider; 65. Return spring; 66. Limiting groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a lithium hexafluorophosphate production wastewater treatment device, including a base 1 for stably supporting equipment components, a mixing barrel 2 for mixing lithium hexafluorophosphate production wastewater and treatment agents is fixedly connected to the top of the base 1, which is a place for mixing reaction to facilitate later treatment, a barrel cover 3 is provided on the top of the mixing barrel 2 to seal the mixing barrel 2, to ensure the safety of the mixing process and reduce the volatilization and leakage of substances, and a water inlet is provided on the right side of the barrel cover 3 for adding treatment agents and lithium hexafluorophosphate production wastewater, a driving motor 4 for providing power to the stirring component is fixedly connected to the top of the barrel cover 3, and the mixing barrel 2 is provided with a water inlet on the right side for adding treatment agents and lithium hexafluorophosphate production wastewater, and a driving motor 4 for providing power to the stirring component is fixedly connected to the top of the barrel cover 3. A stirring assembly is provided, which includes a stirring shaft 51, which transmits the power of the driving motor 4, drives the main gear 54, the stirring rod 1 53 and other components to rotate, thereby achieving stirring of the wastewater and the reagent. The top end of the stirring shaft 51 is fixedly connected to the bottom end of the output shaft of the driving motor 4, and the outer wall of the stirring shaft 51 is rotatably connected to the inner wall of the middle part of the barrel cover 3. The outer wall of the top end of the stirring shaft 51 is rotatably connected to the rotating shell 52, and the connecting part is provided with a sealing ring, which can protect the components inside the rotating shell 52 and can drive the stirring rod 2 59 to rotate, thereby increasing the stirring effect and range. The bottom end of the stirring shaft 51 is fixedly connected to the main gear 54 for driving the three sets of sub-gears 55 to rotate.

[0033] Reference Figure 2 and Figure 3The outer wall of the stirring shaft 51 near the bottom of the barrel cover 3 is fixedly connected to a stirring rod 1 53, and the side of the stirring rod 1 53 near the stirring shaft 51 is fixedly connected to a spoiler, which directly stirs the wastewater and medicine in the mixing barrel 2. The spoiler can enhance the turbulence effect during stirring and promote uniform mixing. The outer wall of the rotating shell 52 is fixedly connected to a stirring rod 2 59, which stirs the wastewater and medicine under the drive of the rotating shell 52 and works in conjunction with the stirring rod 1 53 to improve the mixing efficiency. There are multiple groups of spoilers, which are inclined and can produce more complex fluid flow states during the stirring process, making the flow of the liquid in the mixing barrel 2 more turbulent and disordered, which helps to increase the collision and contact opportunities between the wastewater and the treatment agent, thereby promoting them to mix faster and more evenly. Multiple groups of spoilers are conveniently arranged on the outer walls of the stirring rod 1 53 and the stirring rod 2 59. The outer wall of the main gear 54 is meshed with a sub-gear 55, which is meshed with the main gear 54 and the ring gear 56. The power is transmitted to the rotating shell 52 to realize the rotation of the rotating shell 52. Three groups of sub-gears 55 are provided. The outer walls of the three groups of sub-gears 55 are meshed with gear rings 56, which cooperate with the sub-gears 55 to enable the rotating shell 52 to rotate. At the same time, through the different tooth ratios of the main gear 54 and the sub-gear 55, the rotation speeds of the stirring rod 1 53 and the stirring rod 2 59 are different, which can form different stirring speeds and stirring modes in the mixing barrel 2, which helps to more fully and evenly mix the lithium hexafluorophosphate production wastewater and treatment agents, and improve the effect and efficiency of wastewater treatment. The outer side of the gear ring 56 is fixedly connected to the inner wall of the rotating shell 52, and the bottom end of the sub-gear 55 is fixedly connected to a connecting rod 57, which connects the sub-gear 55 and the connecting plate 58 to transmit power and support the sub-gear 55. The outer wall of the bottom end of the connecting rod 57 is provided with a bearing, which can reduce the friction resistance during rotation and make the rotation smoother. The outer wall of the bearing is fixedly connected to a connecting plate 58 to improve the stability of the three groups of sub-gears 55.

[0034] Reference Figure 2 、 Figure 4 and Figure 5The inner wall of the base 1 is provided with a limit assembly, which includes a limit rod 61 for limiting the three sets of sub-gears 55 to prevent the three sets of sub-gears 55 from rotating around the main gear 54. The top of the limit rod 61 is fixedly connected to the bottom end of the connecting plate 58, and the outer wall of the top of the limit rod 61 is rotatably connected to the inner wall of the bottom side of the rotating shell 52. A sealing ring is provided at the connection between the limit rod 61 and the rotating shell 52 to prevent impurities from entering the connection, ensure the smoothness of rotation, reduce wear, and improve the service life of the components. The bottom end of the rod 61 is fixedly connected to the limiting tooth 62, which is used to insert into the inner wall of the limiting groove 66, thereby fixing the connecting plate 58 and improving the stability of the rotating shell 52 when rotating. The inner wall of the bottom side of the base 1 is fixedly connected with a sleeve 63 near the bottom end of the limiting rod 61. The inner side of the top of the sleeve 63 is inclined, so that the limiting rod 61 can be inserted into the inner wall of the sleeve 63 more smoothly and quickly during installation, thereby improving the installation efficiency of the entire device. The inner wall of the sleeve 63 is slidably connected to the slider 64, which is rotated by the return spring 65. The locking mechanism 62 is adapted to engage with the locking teeth 62 to limit the rotation of the locking rod 61. The slider 64 is elastically connected to the sleeve 63 via a return spring 65, which provides an elastic restoring force so that the slider 64 can be reset in the sleeve 63. At the same time, when the locking teeth 62 do not slide into the limit groove 66, the rotation of the locking rod 61 will drive the locking teeth 62 to rotate at the top of the slider 64. At this time, the elastic force of the return spring 65 continues to act, and once the position is appropriate, the locking teeth 62 will slide smoothly into the limit groove 66, thereby improving the locking mechanism 62. To ensure stability and accuracy during equipment installation and maintenance, a through groove is provided on the inner wall of the sleeve 63 near the top of the slider 64 to prevent waste water from accumulating inside the sleeve 63. A limiting groove 66 is provided on the top of the slider 64 to cooperate with the limiting tooth 62 to limit the rotation of the limiting rod 61. One side of the limiting tooth 62 is inclined, and the limiting tooth 62 slides on the inner wall of the limiting groove 66. The inclined surface will generate a guiding effect, so that the limiting tooth 62 can more easily enter the limiting groove 66 to realize the limiting function.

[0035] Working principle: When in use, when working, start the drive motor 4, its output shaft drives the stirring shaft 51 to rotate, and drives the stirring rod 1 53 to directly stir the wastewater and the reagent. At the same time, the stirring shaft 51 drives the three sets of sub-gears 55 to rotate through the main gear 54 at its bottom end. The engagement of the sub-gear 55 with the ring gear 56 causes the rotating shell 52 to rotate, thereby driving the stirring rod 2 59 on the outer wall of the rotating shell 52 to stir the wastewater and the treatment reagent. The spoilers arranged obliquely on the stirring rod 1 53 and the stirring rod 2 59 can produce complex fluid flow states, increase the collision and contact opportunities between the wastewater and the treatment reagent, and promote faster and more uniform mixing.

[0036] When maintaining the equipment, the limiting tooth 62 at the bottom end of the limiting rod 61 will rotate at the top end of the slider 64 as the limiting rod 61 rotates when it has not slid into the limiting groove 66 at the top end of the slider 64. The elastic force of the reset spring 65 continues to act. When the position is appropriate, the inclined limiting tooth 62 slides into the limiting groove 66 under the guidance, fixing the connecting plate 58, thereby limiting the movement of the sub-gear 55, improving the stability of the rotating shell 52 during rotation, ensuring the stability and accuracy of the entire device during operation, reducing the difficulty of equipment maintenance, improving maintenance efficiency, and realizing efficient mixing of lithium hexafluorophosphate production wastewater and treatment agents, preparing for subsequent treatment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium hexafluorophosphate production wastewater treatment device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a mixing barrel (2), the top of the mixing barrel (2) is provided with a barrel cover (3), the top of the barrel cover (3) is fixedly connected to a driving motor (4), a stirring assembly is provided inside the mixing barrel (2), the stirring assembly comprises a stirring shaft (51), the top of the stirring shaft (51) is fixedly connected to the bottom of the output shaft of the driving motor (4), the outer wall of the stirring shaft (51) is rotatably connected to the inner wall of the middle part of the barrel cover (3), the outer wall of the top of the stirring shaft (51) is rotatably connected to a rotating shell (52), and the bottom of the stirring shaft (51) is fixedly connected to a main gear (54).

2. A lithium hexafluorophosphate production wastewater treatment device according to claim 1, characterized in that: The outer wall of the stirring shaft (51) near the bottom end of the barrel cover (3) is fixedly connected to a stirring rod 1 (53), and the side of the stirring rod 1 (53) near the stirring shaft (51) is fixedly connected to a spoiler. The outer wall of the rotating shell (52) is fixedly connected to a stirring rod 2 (59), and the spoilers are provided in multiple groups. The multiple groups of spoilers are conveniently arranged on the outer walls of the stirring rod 1 (53) and the stirring rod 2 (59).

3. A lithium hexafluorophosphate production wastewater treatment device according to claim 1, characterized in that: The outer wall of the main gear (54) is meshed with a sub-gear (55), and three groups of sub-gears (55) are provided. The outer walls of the three groups of sub-gears (55) are meshed with gear rings (56), and the outer sides of the gear rings (56) are fixedly connected to the inner wall of the rotating shell (52).

4. A lithium hexafluorophosphate production wastewater treatment device according to claim 3, characterized in that: The bottom end of the secondary gear (55) is fixedly connected to a connecting rod (57), the outer wall of the bottom end of the connecting rod (57) is provided with a bearing, and the outer wall of the bearing is fixedly connected to a connecting plate (58).

5. A lithium hexafluorophosphate production wastewater treatment device according to claim 1, characterized in that: A limiting assembly is provided on the inner wall of the base (1), and the limiting assembly includes a limiting rod (61), the top end of the limiting rod (61) is fixedly connected to the bottom end of the connecting plate (58), and the outer wall of the top end of the limiting rod (61) is rotatably connected to the inner wall of the bottom side of the rotating shell (52), and the bottom end of the limiting rod (61) is fixedly connected to the limiting tooth (62).

6. A lithium hexafluorophosphate production wastewater treatment device according to claim 1, characterized in that: A sleeve (63) is fixedly connected to the inner wall of the bottom side of the base (1) near the bottom end of the limiting rod (61), and a slider (64) is slidably connected to the inner wall of the sleeve (63). The slider (64) and the sleeve (63) are elastically connected via a return spring (65).

7. A lithium hexafluorophosphate production wastewater treatment device according to claim 6, characterized in that: A through groove is provided on the inner wall of the sleeve (63) near the top of the slider (64), and a limiting groove (66) is provided on the top of the slider (64).

8. A lithium hexafluorophosphate production wastewater treatment device according to claim 5, characterized in that: One side of the limiting tooth (62) is inclined, and the limiting tooth (62) slides on the inner wall of the limiting groove (66).

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