Water bath type device for leaching chlorine from zinc oxide enrichment

Abstract

The utility model discloses a water bath type device for leaching chlorine from zinc oxide enrichment, which relates to the technical field of leaching devices and comprises a water bath main body, the water bath main body is used for providing a water bath constant-temperature environment, and the bottom of the water bath main body is fixedly connected with a plurality of supporting legs. According to the device, a sample to be treated is guided into the leaching box through the feeding nozzle, the sealing cover is closed, the electric control valve at the water inlet pipe is opened, a proper amount of leaching liquid is introduced, and after constant-temperature leaching is carried out for one hour, the sealing mechanism is opened, so that mixed liquid in the leaching box enters the filtering box, and after the leaching mixed liquid is filtered by the filtering box, the mixed liquid is filtered by the filtering box. Filtration liquid is led out through the discharge pipe, the interior of equipment, filter paper and the like are cleaned twice to three times through cleaning liquid, and the process does not need to move the filtration operation out of a constant-temperature water bath environment, so that the filtration liquid and the cleaning liquid can keep the water bath temperature, and it is guaranteed that the subsequent titration result cannot generate large errors.

Description

Technical Field

[0001] This utility model relates to the field of leaching device technology, specifically to a water bath type device for leaching chlorine from zinc oxide concentrate. Background Technology

[0002] Zinc oxide concentrates, as a recycled zinc resource, play an important role in zinc smelting. These concentrates contain 40%-70% zinc oxide and primarily originate from low-grade zinc ore, steelmaking dust, and electroplating waste. They also contain high levels of impurities such as fluorine, chlorine, and silicon.

[0003] The sample was extracted with hot water, and the extracted mixture was filtered while hot. The filter paper and reagent bottle were then rinsed two to three times with boiling water. The rinsing solution was mixed with the filtrate, concentrated, and then titrated. The filtered solution was titrated with mercuric nitrate using bromophenol blue and diphenylcarbazin as indicators. Excess mercury ions reacted with diphenylcarbazin to form a pale purple-blue mercury complex, indicating the endpoint. The content of water-soluble chloride ions was calculated based on the volume of mercuric nitrate standard solution consumed.

[0004] However, in current methods, filtering the leached mixture requires removing the reagent bottle from the water bath and washing the filter paper. This process, involving detachment from the water bath and subsequent filtration and washing, lowers the temperature of the mixture, affecting chlorine precipitation and leading to significant errors in subsequent titration results. Therefore, this application proposes a water bath-type device for leaching chlorine from zinc oxide concentrate to address these problems. Utility Model Content

[0005] This invention provides a water bath type device for leaching chlorine from zinc oxide concentrate, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A water bath chlorine extraction device for zinc oxide enrichment includes a water bath body for providing a constant temperature environment. Multiple support legs are fixedly connected to the bottom of the water bath body. A leaching box is movably connected inside the water bath body and is fixedly connected to the bottom of the inner cavity of the water bath body via a mounting bracket. A sealing cover is movably connected to the top of the leaching box, and a feed nozzle and a water inlet pipe are fixedly connected to the sealing cover.

[0008] A filter box is fixedly connected to the bottom of the leaching box. The filter box filters the mixture flowing out of the leaching box. A sealing mechanism is provided at the connection between the leaching box and the filter box to control the flow of the mixture in the leaching box into the filter box.

[0009] The bottom of the filter box is fixedly connected to a discharge pipe, one end of which passes through the bottom of the water bath body and extends to the outside of the water bath body.

[0010] A further improvement of this utility model is that: one side of the leaching box is an inclined surface, and a rotating rod is movably connected to the inner side of the inclined surface of the leaching box through a central shaft. Both ends of the rotating rod are fixedly connected to a stirring element. An equipment box is fixedly connected to the outer side of the inclined surface of the leaching box. A drive structure adapted to the stirring element is installed inside the equipment box. The drive structure drives the rotating rod and the stirring element to rotate along the central shaft to stir the mixture in the leaching box.

[0011] A further improvement of this utility model is that: a frame is movably connected inside the filter box, a support mesh is fixedly connected to the inner wall of the frame, and the upper surface of the support mesh is covered with filter paper.

[0012] A further improvement of this utility model is that the support net is inclined from all sides toward the center.

[0013] A further improvement of this utility model is that: an installation strip is fixedly connected to the inner wall of the filter box, the lower surface of the frame is movably connected to the upper surface of the installation strip, and a handle is fixedly connected to one side of the frame that extends through the filter box and the main body of the water bath and extends to the outside of the main body of the water bath.

[0014] A further improvement of the present invention is that the sealing mechanism includes a sealing plug that is movably connected to the immersion box and the filter box. The bottom of the sealing plug is fixedly connected to an ear plate. A sliding rod is movably connected through the ear plate. One end of the sliding rod is fixedly connected to the top of the inner cavity of the filter box. The other end of the sliding rod is fixedly connected to the filter box through an L-shaped bracket. A spring is sleeved on the outer surface of the sliding rod between the ear plate and the L-shaped bracket.

[0015] A further improvement of this utility model is that: an inlet pipe is fixedly connected to the upper surface of the sealing cover plate, an electrically controlled valve is movably connected to the inlet pipe connected to the sealing cover plate, and an air inlet pipe is fixedly connected to the inlet pipe.

[0016] A further improvement of this utility model is that: the branch pipe of the inlet pipe is fixedly connected to the upper surface of the filter box, and an electrically controlled valve is movably connected to the branch pipe of the inlet pipe.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides a water bath type device for leaching chlorine from zinc oxide enrichment. First, the sample to be treated is introduced into the leaching box through the feed nozzle and the sealing cover is closed. Then, the electric control valve at the water inlet pipe is opened to introduce an appropriate amount of leaching solution. After leaching at a constant temperature for one hour, the sealing mechanism is opened to allow the mixture in the leaching box to enter the filter box. After the leaching mixture is filtered through the filter box, the filtrate is discharged through the discharge pipe. The inside of the equipment and the filter paper are then cleaned two to three times with a cleaning solution. This process does not require moving the filtration operation out of the constant temperature water bath environment, thus ensuring that the filtrate and cleaning solution can maintain the water bath temperature and that the subsequent titration results will not have large errors.

[0019] 2. This utility model provides a water bath type device for leaching chlorine from zinc oxide enrichment. When the leaching box contains a sample and leaching solution or cleaning solution, the sealing plug is kept sealed by the elasticity of the spring. When the pressure inside the leaching box increases, it exerts a downward force on the sealing plug, causing the ear plate to drive the sealing plug down along the slide rod until the leaching box is connected to the inside of the filter box. The mixed solution or cleaning solution inside the leaching box will enter the filter box for subsequent filtration. The pressure continues to increase until the mixed solution or cleaning solution completely enters the filter box. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0022] Figure 3 This is a schematic diagram of the internal structure of the main body of the water bath of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the equipment box of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the leaching box of this utility model;

[0025] Figure 6 This is a cross-sectional structural diagram of the filter box of this utility model;

[0026] Figure 7 This utility model Figure 6 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Main body of the water bath; 2. Support leg; 3. Immersion box; 4. Sealing cover; 5. Feed nozzle; 6. Water inlet pipe; 7. Air inlet pipe; 8. Inlet pipe; 9. Mounting bracket; 10. Sealing plug; 11. Ear plate; 12. Slide rod; 13. Spring; 14. Mounting strip; 15. Frame; 16. Support net; 17. Handle; 18. Filter box; 19. Equipment box; 20. Rotating rod; 21. Stirrer; 22. Discharge pipe; 23. L-shaped bracket. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments:

[0029] Example:

[0030] like Figure 1-7 As shown, this utility model provides a water bath type device for chlorine extraction from zinc oxide concentrate, including a water bath body 1. The water bath body 1 is existing technology and includes a water tank, a heating system, a cooling system, a temperature sensor, and a control system, etc., to provide a constant temperature environment for the water bath as needed. Multiple support legs 2 are fixedly connected to the bottom of the water bath body 1. A leaching box 3 is movably connected inside the water bath body 1. The leaching box 3 is fixedly connected to the bottom of the inner cavity of the water bath body 1 by a mounting bracket 9. A sealing cover 4 is movably connected to the top of the leaching box 3. A feed nozzle 5 and a water inlet pipe 6 are fixedly connected to the sealing cover 4. The feed nozzle 5 is used to insert the sample. A sealing cover is movably connected to the feed nozzle 5. The water inlet pipe 6 is connected to an external liquid and is equipped with an electrically controlled valve to control the flow of liquid at a suitable temperature, including leaching solution, rinsing water, etc.

[0031] A filter box 18 is fixedly connected to the bottom of the leaching box 3. The filter box 18 filters the mixed liquid flowing out of the leaching box 3. A sealing mechanism is provided at the connection between the leaching box 3 and the filter box 18 to control the flow of the mixed liquid in the leaching box 3 into the filter box 18.

[0032] A drain pipe 22 is fixedly connected to the bottom of the filter box 18. One end of the drain pipe 22 passes through the bottom of the water bath body 1 and extends to the outside of the water bath body 1.

[0033] First, the sample to be processed is introduced into the leaching box 3 through the feed nozzle 5, and the sealing cover is closed. Then, the electric control valve at the water inlet pipe 6 is opened to introduce an appropriate amount of leaching solution. After leaching at a constant temperature of 90-95 degrees Celsius for one hour, the sealing mechanism is opened to allow the mixture in the leaching box 3 to enter the filter box 18. After the leaching mixture is filtered through the filter box 18, the filtrate is discharged through the discharge pipe 22. The inside of the equipment and the filter paper are then cleaned two to three times with cleaning solution. The cleaning solution is then mixed with the first filtrate, concentrated, and a mixed indicator is added while hot. The solution color is adjusted from blue to yellow-green with nitric acid solution. Then, it is titrated with nitric acid standard solution until a light purple-blue color appears and no longer disappears, which is the endpoint. The content of water-soluble chloride ions is calculated based on the volume of nitric acid standard solution consumed. This process does not require moving the filtration operation out of the constant temperature water bath environment, thus ensuring that the filtrate and cleaning solution can maintain the water bath temperature and that the subsequent titration results will not have large errors.

[0034] Furthermore, one side of the leaching box 3 is an inclined surface. A rotating rod 20 is movably connected to the inner side of the inclined surface of the leaching box 3 via a central shaft. Both ends of the rotating rod 20 are fixedly connected to a stir bar 21. An equipment box 19 is fixedly connected to the outer side of the inclined surface of the leaching box 3. A drive structure adapted to the stir bar 21 is installed inside the equipment box 19. The drive structure drives the rotating rod 20 and the stir bar 21 to rotate along the central shaft to stir the mixture in the leaching box 3. The drive structure is existing technology and includes a motor and a magnet. The stir bar 21 is a small magnet placed in the liquid. It is usually covered with polytetrafluoroethylene or glass and is chemically inert, so it does not easily react with the solution. The motor drives the magnet to rotate, generating a rotating magnetic field, which drives the stir bar 21 and the rotating rod 20 to rotate along the central shaft to stir the mixture inside the leaching box 3.

[0035] Furthermore, a frame 15 is movably connected inside the filter box 18, and a support net 16 is fixedly connected to the inner wall of the frame 15. The upper surface of the support net 16 is covered with filter paper. The filter paper is existing technology, and its pore size can be selected as needed. The mixture or cleaning solution after being fully immersed in the immersion box 3 enters the filter box 18, and the filter paper filters it. The filtrate is discharged through the discharge pipe 22.

[0036] Furthermore, the support net 16 is sloping from all sides towards the center to facilitate the collection and outflow of the filtrate.

[0037] Furthermore, an installation strip 14 is fixedly connected to the inner wall of the filter box 18, and the lower surface of the frame 15 is movably connected to the upper surface of the installation strip 14. One side of the frame 15 passes through the filter box 18 and the main body 1 of the water bath, and a handle 17 is fixedly connected to the side extending to the outside of the main body 1 of the water bath. The side of the frame 15 closer to the outside is wider, and a sealing structure is provided at the connection between the frame 15 and the main body 1 of the water bath and the filter box 18, which facilitates the processing of the support net 16 and the filter paper, and also ensures that the use of the device is not affected.

[0038] Furthermore, the sealing mechanism includes a sealing plug 10 movably connected to the connection between the leaching box 3 and the filter box 18. The bottom of the sealing plug 10 is fixedly connected to an ear plate 11, and a slide rod 12 is movably connected through the ear plate 11. One end of the slide rod 12 is fixedly connected to the top of the inner cavity of the filter box 18, and the other end of the slide rod 12 is fixedly connected to the filter box 18 through an L-shaped bracket 23. A spring 13 is sleeved on the outer surface of the slide rod 12 between the ear plate 11 and the L-shaped bracket 23. When the leaching box 3 contains a sample and leaching liquid or cleaning liquid, the sealing plug 10 is kept sealed by the elastic action of the spring 13. When the pressure inside the leaching box 3 increases and exerts a downward force on the sealing plug 10, the ear plate 11 will cause the sealing plug 10 to slide down along the slide rod 12 until the leaching box 3 and the filter box 18 are connected. The mixed liquid or cleaning liquid inside the leaching box 3 will enter the filter box 18 for subsequent filtration. The pressure continues to increase until the mixed liquid or cleaning liquid completely enters the filter box 18.

[0039] Furthermore, an inlet pipe 8 is fixedly connected to the upper surface of the sealing cover plate 4. An electric control valve is movably connected to the inlet pipe 8 connected to the sealing cover plate 4. An air inlet pipe 7 is fixedly connected to the inlet pipe 8. The air inlet pipe 7 is connected to an external air source. Through the air source, a gas that is not miscible with the mixed liquid or cleaning liquid is pumped into the immersion box 3 via the air inlet pipe 7 and the inlet pipe 8. The air pressure inside the immersion box 3 increases, which will gradually press down the sealing plug 10 until it opens. The mixed liquid or cleaning liquid will enter the filter box 18 through the gap.

[0040] Furthermore, the branch pipe of the inlet pipe 8 is fixedly connected to the upper surface of the filter box 18, and an electrically controlled valve is movably connected to the branch pipe of the inlet pipe 8. When the mixed liquid or cleaning liquid in the immersion box 3 completely enters the filter box 18, the electrically controlled valve at the connection between the inlet pipe 8 and the sealing cover plate 4 is closed, and the electrically controlled valve on the branch pipe of the inlet pipe 8 is opened. The external air source enters the filter box 18 through the branch pipe of the inlet pipe 8, and the internal pressure of the filter box 18 increases to a certain extent, which will accelerate the filtration process.

[0041] The working principle of this water bath zinc oxide enrichment chlorine leaching device will be explained in detail below.

[0042] like Figure 1-7As shown, the sample to be treated is first introduced into the leaching box 3 through the feed nozzle 5, and the sealing cover is closed. Then, the electric control valve at the water inlet pipe 6 is opened to introduce an appropriate amount of leaching solution. The leaching is carried out at a constant temperature of 90-95 degrees Celsius. With the help of the drive structure, the rotating rod 20 and the stir bar 21 are driven to rotate along the central axis. After one hour, the electric control valve at the inlet pipe 8 is opened to introduce gas into the leaching box 3. When the internal pressure increases and exerts a downward force on the sealing plug 10, the ear plate 11 will drive the sealing plug 10 to slide down the slide rod 12 until the sealing plug 10 is completely removed. The leaching box 3 is internally connected to the filter box 18. The mixture inside the leaching box 3 will enter the filter box 18 and be filtered by the support mesh 16 and filter paper. After the mixture in the leaching box 3 has completely entered the filter box 18, the electric control valve at the connection between the inlet pipe 8 and the sealing cover plate 4 is closed, and the electric control valve on the branch pipe of the inlet pipe 8 is opened. The external air source enters the filter box 18 through the branch pipe of the inlet pipe 8. The internal pressure of the filter box 18 increases to a certain extent, which will accelerate the filtration process. The filtrate is discharged through the discharge pipe 22.

Claims

1. A device for leaching chlorine from a water bath type zinc oxide concentrate, comprising a water bath main body (1) for providing a water bath constant temperature environment, a plurality of supporting legs (2) are fixedly connected to the bottom of the water bath main body (1), characterized in that: The main body (1) of the water bath is movably connected to the immersion box (3). The immersion box (3) is fixedly connected to the bottom of the inner cavity of the main body (1) of the water bath by the mounting bracket (9). The top of the immersion box (3) is movably connected to the sealing cover plate (4). The sealing cover plate (4) is fixedly connected to the feed nozzle (5) and the water inlet pipe (6). The bottom of the leaching box (3) is fixedly connected to a filter box (18), which filters the mixed liquid flowing out of the leaching box (3). A sealing mechanism is provided at the connection between the leaching box (3) and the filter box (18) to control the flow of the mixed liquid in the leaching box (3) into the filter box (18). The bottom of the filter box (18) is fixedly connected to a discharge pipe (22), one end of which penetrates the bottom of the water bath body (1) and extends to the outside of the water bath body (1).

2. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 1, characterized in that: One side of the leaching box (3) is an inclined surface. A rotating rod (20) is movably connected to the inner side of the inclined surface of the leaching box (3) through a central shaft. Both ends of the rotating rod (20) are fixedly connected to a stirrer (21). An equipment box (19) is fixedly connected to the outer side of the inclined surface of the leaching box (3). A drive structure adapted to the stirrer (21) is installed inside the equipment box (19). The drive structure drives the rotating rod (20) and the stirrer (21) to rotate along the central shaft to stir the mixture in the leaching box (3).

3. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 1, characterized in that: The filter box (18) is movably connected to a frame (15), and a support net (16) is fixedly connected to the inner wall of the frame (15). The upper surface of the support net (16) is covered with filter paper.

4. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 3, characterized in that: The support net (16) is sloping from all sides toward the center.

5. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 3, characterized in that: The inner wall of the filter box (18) is fixedly connected to the mounting strip (14), the lower surface of the frame (15) is movably connected to the upper surface of the mounting strip (14), and one side of the frame (15) passes through the filter box (18) and the main body of the water bath (1), and a handle (17) is fixedly connected to the side extending to the outside of the main body of the water bath (1).

6. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 1, characterized in that: The sealing mechanism includes a sealing plug (10) movably connected to the immersion box (3) and the filter box (18). The bottom of the sealing plug (10) is fixedly connected to an ear plate (11). A slide rod (12) is movably connected through the ear plate (11). One end of the slide rod (12) is fixedly connected to the top of the inner cavity of the filter box (18). The other end of the slide rod (12) is fixedly connected to the filter box (18) through an L-shaped bracket (23). A spring (13) is sleeved on the outer surface of the slide rod (12) between the ear plate (11) and the L-shaped bracket (23).

7. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 1, characterized in that: An inlet pipe (8) is fixedly connected to the upper surface of the sealing cover (4), and an electric control valve is movably connected to the inlet pipe (8) connected to the sealing cover (4). An air inlet pipe (7) is fixedly connected to the inlet pipe (8).

8. The apparatus for leaching and chlorination of water bath type zinc oxide concentrate according to claim 7, characterized in that: The branch pipe of the inlet pipe (8) is fixedly connected to the upper surface of the filter box (18), and an electrically controlled valve is movably connected to the branch pipe of the inlet pipe (8).

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