Cadmium replacement tank

Abstract

The utility model discloses a cadmium replacement tank, and relates to the technical field of hydrometallurgy. A discharging pipe is arranged at the bottom of the replacement tank body, a liquid inlet pipe is arranged on one side of the replacement tank body, a first rotating shaft is rotatably connected to an inner cavity of the replacement tank body, a second rotating shaft with the two ends penetrating through the first rotating shaft is rotatably connected to the interior of the first rotating shaft, stirring blades are arranged on the outer wall of the first rotating shaft, and an L-shaped stirring rod is fixedly connected to the outer wall of the bottom end of the second rotating shaft; the rotating directions of the first rotating shaft and the second rotating shaft are opposite, a stainless steel cage capable of ascending and descending is arranged in the replacement tank body, a cathode zinc sheet is arranged in the stainless steel cage, and the stainless steel cage is located between the stirring rod and the stirring blade in the inner cavity of the replacement tank body. According to the cadmium replacement tank, the cathode zinc sheet is used for replacing zinc powder to replace sponge cadmium, the stainless steel cage is used for placing the cathode zinc sheet into the sponge cadmium replacement tank for reaction, and through cooperation of the first rotating shaft, the second rotating shaft, the stirring rods and the stirring blades, a cadmium solution can be stirred conveniently, so that the replacement rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrometallurgy, in particular to a cadmium replacement tank. Background Art

[0002] Cadmium is a highly toxic heavy metal. Its single substance is a silvery-white metal and it is an excellent metal that absorbs neutrons. Cadmium slowly oxidizes in humid air and loses its metallic luster. When heated, a brown oxide layer forms on the surface. If heated above the boiling point, cadmium oxide smoke will be produced. Cadmium is highly toxic. Air and food contaminated by cadmium are seriously harmful to the human body, and it is metabolized slowly in the human body. Cadmium rods can slow down the rate of chain fission reactions in nuclear reactors and are quite useful in zinc-cadmium batteries.

[0003] In the by-product clean slag cadmium recovery process, the cadmium ions in the filtrate after the leaching liquid filtration must be replaced with metallic zinc powder to form sponge cadmium. When zinc powder is added to the clean slag leaching filtrate, the zinc powder undergoes a replacement reaction with the cadmium ions in the solution and cadmium is obtained after filtration. In the cadmium replacement, the replacement reaction rate is slow under normal temperature and neutral conditions. Utility Model Content

[0004] The utility model provides a cadmium replacement tank to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cadmium replacement tank, comprising a replacement tank body with a discharge pipe at the bottom and a liquid inlet pipe at one side, the inner cavity of the replacement tank body is rotatably connected to a first rotating shaft, the interior of the first rotating shaft is rotatably connected to a second rotating shaft with both ends passing through the first rotating shaft, the outer wall of the first rotating shaft is provided with a stirring blade, the outer wall of the bottom end of the second rotating shaft is fixedly connected to an L-shaped stirring rod, the first rotating shaft and the second rotating shaft rotate in opposite directions, a stainless steel cage is liftably provided inside the replacement tank body, a cathode zinc sheet is built in the stainless steel cage, and the stainless steel cage is located between the stirring rod and the stirring blade in the inner cavity of the replacement tank body.

[0006] Furthermore, a mounting frame is installed on the top of the replacement slot body, and a second motor for driving the second rotating shaft to rotate is installed on the top of the mounting frame.

[0007] Furthermore, a first motor with an output shaft sleeved with a driving gear is installed on the top of the mounting frame, and the end of the first rotating shaft protrudes outside the paper replacement groove body and is sleeved with a driven gear meshing with the driving gear.

[0008] Furthermore, a reinforcing rod is provided between the second rotating shaft and the stirring rod.

[0009] Furthermore, a linear motor is installed on the top of the replacement slot body, a lifting plate is installed on the slide of the linear motor, a fixing rod is fixedly connected to the lifting plate, a lifting rope is installed on the top of the stainless steel cage, and the fixing rod is connected to the lifting rope through a hook.

[0010] Furthermore, the inner wall box discharge pipes on both sides of the bottom end of the replacement tank body are inclined.

[0011] Compared with the prior art, the utility model provides a cadmium replacement tank, which has the following beneficial effects: the cadmium replacement tank uses a cathode zinc sheet instead of zinc powder to replace the sponge cadmium, and the cathode zinc sheet is placed in the sponge cadmium replacement tank by using a stainless steel cage for reaction, and the cooperation of the first rotating shaft, the second rotating shaft, the stirring rod and the stirring blade facilitates the stirring of the cadmium solution to promote the replacement rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0014] Figure 3 It is an enlarged schematic diagram of point A of the present utility model.

[0015] In the figure: 1. displacement tank body; 2. discharge pipe; 3. liquid inlet pipe; 4. first rotating shaft; 5. stirring blade; 6. second rotating shaft; 7. stirring rod; 8. stainless steel cage; 9. mounting frame; 10. first motor; 11. second motor; 12. driving gear; 13. driven gear; 14. reinforcing rod; 15. linear motor; 16. lifting plate; 17. fixing rod; 18. lifting rope. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-3The utility model discloses a cadmium replacement tank, comprising a replacement tank body 1 with a discharge pipe 2 at the bottom and a liquid inlet pipe 3 at one side, the inner cavity of the replacement tank body 1 is rotatably connected with a first rotating shaft 4, the interior of the first rotating shaft 4 is rotatably connected with a second rotating shaft 6 with both ends penetrating the first rotating shaft 4, the outer wall of the first rotating shaft 4 is provided with a stirring blade 5, the outer wall of the bottom end of the second rotating shaft 6 is fixedly connected with an L-shaped stirring rod 7, the first rotating shaft 6 and the second rotating shaft 4 rotate in opposite directions, the interior of the replacement tank body 1 is provided with a stainless steel cage 8 which can be lifted and lowered, the stainless steel cage 8 has a cathode zinc sheet built therein, and the stainless steel cage 8 is located between the stirring rod 7 and the stirring blade 5 in the inner cavity of the replacement tank body 1.

[0018] A heating wire may be arranged inside the replacement tank body 1, and the liquid inlet pipe 3 is used for inputting the cadmium-containing solution.

[0019] Specifically, a mounting frame 9 is installed on the top of the replacement tank body 1 , and a second motor 11 for driving the second rotating shaft 6 to rotate is installed on the top of the mounting frame 9 .

[0020] A first motor 10 with a driving gear 12 sleeved on its output shaft is installed on the top of the mounting frame 9 . The end of the first rotating shaft 4 protrudes out of the paper replacement tank body 1 and is sleeved with a driven gear 13 meshing with the driving gear 12 for transmission.

[0021] In this embodiment, the first motor 10 drives the first rotating shaft 4 to rotate through the cooperation of the driving gear 12 and the driven gear 13, so as to drive the stirring blade 5 to rotate.

[0022] The second motor 11 drives the second rotating shaft 6 to rotate, so as to drive the stirring rod 7 to rotate.

[0023] The first rotating shaft 4 and the second rotating shaft 6 rotate in opposite directions.

[0024] Specifically, a reinforcing rod 14 is provided between the second rotating shaft 6 and the stirring rod 7 .

[0025] In this embodiment, the reinforcing rod 14 can enhance the connection stability between the L-shaped stirring rod 7 and the second rotating shaft 6 .

[0026] Specifically, a linear motor 15 is installed on the top of the replacement tank body 1, a lifting plate 16 is installed on the slide of the linear motor 15, a fixing rod 17 is fixedly connected to the lifting plate 16, a lifting rope 18 is installed on the top of the stainless steel cage 8, and the fixing rod 17 is connected to the lifting rope 18 through a hook.

[0027] In this embodiment, a lifting ring cooperating with the hook can be provided on the lifting rope 18, and a through hole for accommodating the stainless steel cage 8 is opened on the top of the replacement tank body 1 to facilitate the placement and removal of the stainless steel cage 8.

[0028] Specifically, the discharge pipes 2 on the inner walls of both sides of the bottom of the replacement tank body 1 are inclined.

[0029] In this embodiment, the discharge pipe 2 is connected to a corresponding filter press through a pipeline so as to filter the cadmium precipitate.

[0030] In summary, the cadmium replacement tank uses cathode zinc sheets instead of zinc powder to replace sponge cadmium, and the cathode zinc sheets are placed in the sponge cadmium replacement tank by using a stainless steel cage 8 for reaction, and the cooperation of the first rotating shaft 4, the second rotating shaft 6, the stirring rod 7 and the stirring blade 5 facilitates the stirring of the cadmium solution to promote the replacement rate.

[0031] 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 cadmium replacement tank, comprising a replacement tank body (1) with a discharge pipe (2) at the bottom and a liquid inlet pipe (3) at one side, characterized in that: The inner cavity of the replacement tank body (1) is rotatably connected to a first rotating shaft (4); the interior of the first rotating shaft (4) is rotatably connected to a second rotating shaft (6) with both ends penetrating the first rotating shaft (4); the outer wall of the first rotating shaft (4) is provided with a stirring blade (5); the outer wall of the bottom end of the second rotating shaft (6) is fixedly connected to an L-shaped stirring rod (7); the first rotating shaft and the second rotating shaft rotate in opposite directions; the interior of the replacement tank body (1) is provided with a stainless steel cage (8) which can be raised and lowered; the stainless steel cage (8) contains a cathode zinc sheet; the stainless steel cage (8) is located between the stirring rod (7) and the stirring blade (5) in the inner cavity of the replacement tank body (1).

2. A cadmium replacement tank according to claim 1, characterized in that: A mounting frame (9) is installed on the top of the replacement tank body (1), and a second motor (11) for driving the second rotating shaft (6) to rotate is installed on the top of the mounting frame (9).

3. A cadmium replacement tank according to claim 2, characterized in that: A first motor (10) having an output shaft sleeved with a driving gear (12) is installed on the top of the mounting frame (9); an end of the first rotating shaft (4) protrudes outside the paper replacement groove body (1) and is sleeved with a driven gear (13) meshing with the driving gear (12) for transmission.

4. A cadmium replacement tank according to claim 1, characterized in that: A reinforcing rod (14) is provided between the second rotating shaft (6) and the stirring rod (7).

5. The cadmium replacement tank according to claim 1, characterized in that: A linear motor (15) is installed on the top of the replacement tank body (1), a lifting plate (16) is installed on the slide of the linear motor (15), a fixing rod (17) is fixedly connected to the lifting plate (16), a suspension rope (18) is installed on the top of the stainless steel cage (8), and the fixing rod (17) is connected to the suspension rope (18) through a hook.

6. The cadmium replacement tank according to claim 1, characterized in that: The inner wall box discharge pipes (2) on both sides of the bottom end of the replacement tank body (1) are arranged obliquely.

Images