Purification device for ammonia-process electrolytic zinc solution

Abstract

The utility model discloses a purification device for an ammonia-process electrolytic zinc solution, which comprises a purification reaction container, a liquid inlet pipe, a liquid outlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, the supporting device is used for supporting and fixing the purification reaction container and suspending the purification reaction container; the driving device is used for driving the purification reaction container to rotate relative to the supporting device, and the liquid tank is arranged below the discharging pipe; and the plurality of zinc particles are placed in the purification reaction container. According to the utility model, not only is a solution fully stirred, but also lead-coated zinc particles can be collided and rubbed, so that the zinc always has a fresh surface layer, the replacement reaction of impurity elements is more thorough, and the generated hydrogen is retained in a closed space to play a role in inhibiting the impurity lead from being leached by an ammonium chloride solution.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic zinc, in particular to a purification device for ammonia-process electrolytic zinc solution. Background Art

[0002] In the production process of ammonia zinc smelting, the task of the purification process is to use zinc as a purification auxiliary material to remove impurities such as lead, cadmium, and copper in the solution, and provide qualified new solution for zinc electrowinning. At present, the reactors of the hydrometallurgical zinc smelting purification process mostly use vertical reaction tanks, which have problems such as insufficient stirring, impurities being passivated after wrapping zinc, and easy contact with air during the displacement process to cause impurities to dissolve again, resulting in large amounts of zinc powder and high purification costs. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a purification device for ammonia electrolytic zinc solution.

[0004] The technical solution of the utility model is: a purification device for ammonia electrolytic zinc solution, comprising:

[0005] A purification reaction vessel, one end of which is provided with a feed pipe and the other end of which is provided with a discharge pipe;

[0006] A supporting device, used to support and fix the purification reaction container and make it suspended in the air;

[0007] A driving device, used for driving the purification reaction container to rotate relative to the supporting device,

[0008] A liquid tank, arranged below the discharge pipe;

[0009] A plurality of zinc particles are placed in the purification reaction container.

[0010] Preferably, the feed pipe is L-shaped, with a funnel provided on the top, and the feed pipe is rotatably connected to the purification reaction container.

[0011] Preferably, the supporting device comprises two supporting plates and two baffles, the supporting plate is provided with a through hole, and the end of the purification reaction container passes through the through hole and cooperates with the baffle.

[0012] Preferably, the driving device comprises an annular rack plate, a gear and a motor, the rack plate is sleeved on the purification reaction container, the gear is provided at the output end of the motor, and the gear is meshed with the rack on the rack plate.

[0013] Preferably, a plurality of detachable hole plugs are provided on both sides of the purification reaction container; and a plurality of grids are also provided at intervals in the purification reaction container.

[0014] The beneficial effects of the utility model are as follows: in the utility model, not only the solution is fully stirred, but also the particles of "lead-coated zinc" can be collided and rubbed, so that the zinc always has a fresh surface layer, the replacement reaction of the impurity elements is more thorough, and the generated hydrogen is retained in the closed space to play a role in inhibiting the impurity lead from being leached by the ammonium chloride solution, while reducing the cost of the purification process and improving the recovery rate of zinc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of a support plate in a preferred embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of a baffle in a preferred embodiment of the utility model.

[0018] Reference numerals: purification reaction vessel 10 , feed pipe 101 , discharge pipe 102 , hole plug 103 , liquid tank 2 , zinc particles 3 , support plate 4 , baffle plate 5 , rack plate 6 , gear 7 , motor 8 , grid 9 . DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] Reference Figures 1 to 3 , a purification device for ammonia electrolytic zinc solution, comprising:

[0021] A purification reaction vessel 10 is provided with a feed pipe 101 at one end and a discharge pipe 102 at the other end;

[0022] A supporting device, used to support and fix the purification reaction container 10 and make it suspended in the air;

[0023] A driving device, used for driving the purification reaction container 10 to rotate relative to the supporting device,

[0024] The liquid tank 2 is arranged below the discharge pipe 102;

[0025] A plurality of zinc particles 3 are placed in the purification reaction container 10. In the utility model, a certain amount of zinc particles 3 and grinding balls are added to the purification reaction container 10, and the driving device drives the purification reaction container 10 to rotate, and the solution enters from the feed pipe 101. The grinding balls and the zinc particles 3 continuously rotate and collide in the purification reaction container 10, so that the zinc particles 3 are no longer wrapped by lead, and the ideal purification effect is achieved. The purified solution is discharged from the discharge pipe 102 and falls into the liquid tank 2. During the purification process, the solution and the upper part of the purification reaction container 10 form a relatively closed space. The hydrogen generated during the replacement and impurity removal process of the zinc particles 3 fills the entire purification reaction container 10, providing a strong reducing atmosphere for the purification process, protecting the replaced lead from oxidation, and reducing the probability of lead redissolution. At the same time, due to the presence of a large amount of hydrogen, the reaction Pb+H+=Pb2++H2 will be inhibited from moving in the forward direction, thereby enhancing the purification effect.

[0026] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0027] In this embodiment, the feed pipe 101 is L-shaped, with a funnel at its top, and the feed pipe 101 is rotatably connected to the purification reaction container 10, and the funnel is provided at the top to facilitate feeding. Specifically, the outer wall of the feed pipe 101 is provided with a plurality of annular rings, and the inner wall of one end of the purification reaction container 10 is provided with a plurality of annular grooves adapted to the annular rings, so that the feed pipe 101 can rotate relative to the purification reaction container 10, and the feed pipe 101 is fixed when in use.

[0028] In this embodiment, the support device includes two support plates 4 and two baffles 5, each of which is provided with a through hole, and the end of the purification reaction container 10 passes through the through hole to cooperate with the baffle 5. The two support plates 4 support the purification reaction container 10 so that it is suspended in the air, and the baffle 5 is sleeved on the end of the purification reaction container 10 so that the purification reaction container 10 does not move back and forth. Specifically, the baffle 5 is fixedly sleeved on the end of the purification reaction container 10.

[0029] In this embodiment, the driving device includes an annular rack plate 6, a gear 7 and a motor 8. The rack plate 6 is sleeved on the purification reaction container 10. The output end of the motor 8 is provided with the gear 7. The gear 7 is meshed with the rack on the rack plate 6. The motor 8 drives the gear 7 to rotate to rotate the rack plate 6, thereby driving the purification reaction container 10 to rotate. Specifically, the driving device is not limited to gear transmission, and can also be chain transmission, belt transmission, etc.

[0030] In this embodiment, a plurality of detachable plugs 103 are provided on both sides of the purification reaction container 10; a plurality of grids 9 are also provided, which are arranged at intervals in the purification reaction container 10. The plugs 103 are removed, and grinding balls and zinc particles 3 are added to the purification reaction container 10. The grinding balls and zinc particles 3 are between the grids 9 and the grids 9 or between the grids 9 and the feed end of the purification reaction container 10, so as to prevent the unreacted zinc particles from flowing out of the purification reaction container 10 with the liquid, thereby improving the utilization rate of the zinc particles. Specifically, a plurality of threaded holes are provided on the purification reaction container 10, and the plugs 103 are connected to the threaded holes; the plugs 103 are removed, and large particles of zinc scum can be discharged from the threaded holes.

[0031] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A purification device for ammonia electrolytic zinc solution, characterized in that: include: A purification reaction container (10) having a feed pipe (101) at one end and a discharge pipe (102) at the other end; A supporting device, used for supporting and fixing the purification reaction container (10) and making it suspended in the air; a driving device, used for driving the purification reaction container (10) to rotate relative to the supporting device, A liquid tank (2) is arranged below the discharge pipe (102); A plurality of zinc particles (3) are placed in the purification reaction container (10).

2. The purification device for ammonia electrolytic zinc solution according to claim 1, characterized in that: The feed pipe (101) is L-shaped, with a funnel provided at the top thereof, and the feed pipe (101) is rotatably connected to the purification reaction container (10).

3. The purification device for ammonia electrolytic zinc solution according to claim 1, characterized in that: The supporting device comprises two supporting plates (4) and two baffles (5), the supporting plate (4) being provided with a through hole, and the end of the purification reaction container (10) passes through the through hole to cooperate with the baffle (5).

4. The purification device for ammonia electrolytic zinc solution according to claim 1, characterized in that: The driving device comprises an annular rack plate (6), a gear (7) and a motor (8); the rack plate (6) is sleeved on the purification reaction container (10); the output end of the motor (8) is provided with the gear (7); the gear (7) is meshed with a rack on the rack plate (6).

5. The purification device for ammonia electrolytic zinc solution according to claim 1, characterized in that: The purification reaction container (10) is provided with a plurality of detachable hole plugs (103) on both sides thereof; and also comprises a plurality of grids (9) which are arranged at intervals in the purification reaction container (10).

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