Sulfuric acid solution preparation stirring and mixing device for reduction process

Abstract

The invention discloses a sulfuric acid solution preparation stirring and mixing device for a reduction process in the technical field of sulfuric acid solution preparation, which comprises a support frame, a stirring tank mounted in the support frame, a sealing cover mounted at the upper end of the stirring tank, a stirring connecting structure mounted at the upper end of the sealing cover, and the other end of the stirring connecting structure mounted on the side wall of the support frame. The stirring connecting structure comprises a motor, a connecting shaft, a stirring frame, a pressure relief pipe, a pressure relief valve, four clamping grooves, two connecting frames and a connecting assembly; a stirring connecting structure is adopted, a plurality of connecting frames are matched with a connecting assembly, a sealing cover can be rapidly fixed, a clamping groove is matched with a supporting frame, rotation limiting can be further conducted on the sealing cover, and the fixing stability of the sealing cover is guaranteed; the sulfuric acid solution can be quickly sampled through the sampling tube, so that the waste of the sulfuric acid solution is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sulfuric acid solution preparation, and specifically to a stirring and mixing device for preparing sulfuric acid solution in a reduction process. Background Art

[0002] Sulfuric acid is a strong acid that can provide an acidic environment, which is beneficial to the occurrence of some reduction reactions. Metal ions are easily reduced under acidic conditions. During the reduction process, sulfuric acid solution can help remove impurities in the reaction, especially oxides or other insoluble substances. Sometimes it can react with certain impurities, dissolve and remove them, thereby improving the purity of the reaction. However, the existing stirring and mixing device for preparing sulfuric acid solution in the reduction process has a poor sealing effect during use, which easily leads to the leakage of harmful gases inside, causing gas pollution to the operating environment. And to ensure the preparation effect of sulfuric acid solution, it is necessary to regularly sample and detect the internal solution. The existing stirring and mixing device does not have a sampling structure. It is necessary to completely open the cover or discharge a large amount of material through the discharge pipe, which is rather cumbersome to operate and easily causes waste of sulfuric acid solution. Therefore, new technical solutions need to be designed to solve this problem. Summary of the Invention

[0003] The purpose of the present invention is to provide a stirring and mixing device for preparing sulfuric acid solution in a reduction process, so as to solve the problems in the above-mentioned background art that the existing stirring and mixing device for preparing sulfuric acid solution in a reduction process has a poor sealing effect during use, easily leads to the leakage of harmful gases inside, causing gas pollution to the operating environment, and to ensure the preparation effect of sulfuric acid solution, it is necessary to regularly sample and detect the internal solution. The existing stirring and mixing device does not have a sampling structure. It is necessary to completely open the cover or discharge a large amount of material through the discharge pipe, which is rather cumbersome to operate and easily causes waste of sulfuric acid solution.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A stirring and mixing device for preparing sulfuric acid solution in a reduction process, including a support frame, a stirring tank is installed inside the support frame, a sealing cover is installed at the upper end of the stirring tank, a stirring connection structure is installed at the upper end of the sealing cover, and the other end of the stirring connection structure is installed at the side wall of the support frame. The stirring connection structure includes a motor, a connecting shaft, a stirring frame, a pressure relief pipe, a pressure relief valve, four card slots, two connecting frames, and a connecting component; The motor is fixedly installed at the center of the upper end of the sealing cover. The connecting shaft is embedded in the center of the sealing cover through a sealed bearing, and one end is connected to the driving end of the motor. The stirring frame is located at the lower end of the sealing cover, and the top is connected to the lower end of the connecting shaft. The bottom end of the pressure relief pipe penetrates through one side of the upper end of the sealing cover, and the pressure relief valve is installed at the upper end of the pressure relief pipe. Four card slots are respectively opened at the four corners of the side wall of the sealing cover, two connecting frames are respectively installed outside two of the card slots, and the connecting assembly is fixedly installed at the upper end of the side wall of the support frame and is respectively connected to the two connecting frames.

[0005] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, the connecting assembly includes two fixing blocks, two fixing screws and two nuts; The two fixing blocks are respectively installed at the upper ends of both sides of the support frame. The two fixing screws are respectively installed at the upper ends of the two fixing blocks, and the tops respectively pass through the centers of the two connecting frames movably. The two nuts are respectively sleeved on the upper ends of the two fixing screws movably.

[0006] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, a sampling structure is installed on the side wall of the stirring tank. The sampling structure includes two connecting pipes, a sampling pipe and a sampling plug; One ends of the two connecting pipes are respectively communicated with the side wall of the stirring tank. The side wall of the sampling pipe is communicated with the other ends of the two connecting pipes. The sampling plug is movably embedded at the top end of the sampling pipe.

[0007] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, a temperature control structure is installed outside the stirring tank. The temperature control structure includes a temperature control box body, a water inlet pipe and a drain pipe; The temperature control box body is fixedly sleeved outside the stirring tank. One end of the water inlet pipe is communicated with the upper end of the side wall of the temperature control box body. One end of the drain pipe is communicated with the lower end of the side wall of the temperature control box body.

[0008] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, a discharge pipe is installed at the bottom end of the stirring tank.

[0009] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, a discharge valve is installed at the upper end of the discharge pipe.

[0010] As a preferred embodiment of the sulfuric acid solution preparation stirring and mixing device for the reduction process of the present invention, control valves are installed at the upper ends of the water inlet pipe and the drain pipe.

[0011] Compared with the prior art, the beneficial effect of the present invention is that the setting of the sulfuric acid solution preparation stirring and mixing device for the reduction process has a reasonable structural design; 1. The adopted stirring connection structure can realize the rapid fixation of the sealing cover through the cooperation of multiple connecting frames and the connecting components. Moreover, through the cooperation of the clamping groove and the support frame, the rotation limit of the sealing cover can be further achieved, ensuring the fixation stability of the sealing cover. 2. Through the provided sampling structure, when sampling the sulfuric acid solution, there is no need to operate on the sealing cover. Through the two communicating pipes provided, the liquid level height in the sampling can be made the same as that in the stirring tank, and the sulfuric acid solution can be quickly sampled through the sampling pipe, reducing the waste of the sulfuric acid solution. Description of the Drawings

[0012] Figure 1 It is a front view three-dimensional structure schematic diagram of the present invention; Figure 2 It is a rear view three-dimensional structure schematic diagram of the present invention; Figure 3 It is a front view sectional structure schematic diagram of the present invention; Figure 4 It is a structure schematic diagram at position A of the present invention.

[0013] In the figure: 1. Support frame, 2. Stirring tank, 3. Sealing cover, 4. Motor, 5. Connecting shaft, 6. Stirring frame, 7. Pressure relief pipe, 8. Pressure relief valve, 9. Clamping groove, 10. Connecting frame, 11. Fixed block, 12. Fixed screw, 13. Nut, 14. Communicating pipe, 15. Sampling pipe, 16. Sampling plug, 17. Temperature control box, 18. Water inlet pipe, 19. Drain pipe, 20. Discharge pipe, 21. Discharge valve, 22. Control valve. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] Please refer to Figures 1-4 , the present invention provides a technical solution: In this technical solution, a sulfuric acid solution preparation and stirring mixing device for the reduction process includes a support frame 1. A stirring tank 2 is installed inside the support frame 1. A sealing cover 3 is installed at the upper end of the stirring tank 2. A stirring connection structure is installed at the upper end of the sealing cover 3. The other end of the stirring connection structure is installed at the side wall of the support frame 1. The stirring connection structure includes a motor 4, a connecting shaft 5, a stirring frame 6, a pressure relief pipe 7, a pressure relief valve 8, four clamping grooves 9, two connecting frames 10, and a connecting component; The motor 4 is fixedly installed at the center of the upper end of the sealing cover 3. The connecting shaft 5 is installed in the center of the sealing cover 3 through a sealed bearing, and one end is connected to the driving end of the motor 4. The stirring frame 6 is located at the lower end of the sealing cover 3, and the top is connected to the lower end of the connecting shaft 5. The bottom end of the pressure relief pipe 7 penetrates through one side of the upper end of the sealing cover 3. The pressure relief valve 8 is installed at the upper end of the pressure relief pipe 7. Four card slots 9 are respectively opened at the four corners of the side wall of the sealing cover 3. Two connecting frames 10 are respectively installed outside two of the card slots 9. The connecting components are fixedly installed at the upper end of the side wall of the support frame 1 and are respectively connected to the two connecting frames 10.

[0016] In this technical solution, when preparing the sulfuric acid solution, the staff first injects concentrated sulfuric acid and the specified diluting liquid into the stirring tank 2, and then places the sealing cover 3 on the upper end of the stirring tank 2, and makes the two card slots 9 on the side wall of the sealing cover 3 sleeved on the four corners of the upper end of the support frame 1 to limit the rotation of the sealing cover 3. Then the two connecting frames 10 are sleeved on the upper end of the connecting components. Through the cooperation of the connecting components and the two connecting frames 10, the sealing cover 3 is fixed. Then the motor 4 is driven to rotate slowly, and through the cooperation of the connecting shaft 5 and the stirring frame 6, the sulfuric acid solution in the stirring tank 2 is mixed and stirred. During the mixing process, the pressure relief valve 8 at the upper end of the pressure relief pipe 7 works, and the air pressure in the stirring tank 2 is controlled through the pressure relief pipe 7, and the discharged gas is transported to the specified position through the pressure relief pipe 7.

[0017] In some technical solutions, refer to Figure 1 , the connecting components include two fixing blocks 11, two fixing screws 12 and two nuts 13; The two fixing blocks 11 are respectively installed at the upper ends of both sides of the support frame 1. The two fixing screws 12 are respectively installed at the upper ends of the two fixing blocks 11, and the tops respectively pass through the centers of the two connecting frames 10 movably. The two nuts 13 are respectively sleeved on the upper ends of the two fixing screws 12 movably.

[0018] In this technical solution, when connecting and fixing the sealing cover 3, the two connecting frames 10 are sleeved on the upper ends of the two fixing screws 12, and then the two nuts 13 are sleeved on the tops of the two fixing screws 12 and tightened, so as to realize the connection between the connecting frame 10 and the fixing block 11, and thus realize the connection and fixing of the sealing cover 3.

[0019] In some technical solutions, refer to Figure 1 , a sampling structure is installed on the side wall of the stirring tank 2. The sampling structure includes two communicating pipes 14, a sampling pipe 15 and a sampling plug 16; One ends of the two communicating pipes 14 are respectively communicated with the side wall of the stirring tank 2. The side wall of the sampling pipe 15 is communicated with the other ends of the two connecting pipes. The sampling plug 16 is movably installed at the top end of the sampling pipe 15.

[0020] In this technical solution, when sampling the sulfuric acid solution, the staff first removes the sampling plug 16, and then extracts the sulfuric acid solution in the sampling tube 15 through the sampling test tube. At the same time, the sulfuric acid solution in the sampling tube 15 is replenished through the two connecting tubes 14. In order to ensure the sampling accuracy, the sampling test tube is taken out again, and the sulfuric acid in the sampling tube 15 is easily extracted again. The concentration of the sulfuric acid solution can be detected by testing the samples extracted twice.

[0021] In some technical solutions, reference Figure 1 A temperature control structure is installed outside the mixing tank 2, and the temperature control structure includes a temperature control box 17, a water inlet pipe 18 and a drain pipe 19; The temperature control box 17 is fixedly mounted on the outside of the mixing tank 2 , one end of the water inlet pipe 18 is connected to the upper end of the side wall of the temperature control box 17 , and one end of the drain pipe 19 is connected to the lower end of the side wall of the temperature control box 17 .

[0022] In this technical solution, when mixing the sulfuric acid solution, firstly, the water inlet pipe 18 and the drain pipe 19 are connected to the water source conveying equipment, and the low-temperature water is conveyed to the temperature control box 17 through the water inlet pipe 18. The cold water in the temperature control box 17 exchanges heat with the side wall of the stirring tank 2, so as to achieve the purpose of cooling the side wall of the stirring tank 2, and control the temperature of the mixed sulfuric acid solution. Finally, the liquid after the heat exchange is discharged through the drain pipe 19.

[0023] In some technical solutions, reference Figure 1 A discharge pipe 20 is installed at the bottom of the mixing tank 2, a discharge valve 21 is installed at the upper end of the discharge pipe 20, and a control valve 22 is installed at the upper ends of the water inlet pipe 18 and the drain pipe 19.

[0024] Working principle: When preparing the sulfuric acid solution, the staff first inject concentrated sulfuric acid and the designated diluting liquid into the stirring tank 2. Then, place the sealing cover 3 on the upper end of the stirring tank 2, and make the four card slots 9 on the side wall of the sealing cover 3 fit over the four corners at the upper end of the support frame 1 to limit the rotation of the sealing cover 3. Subsequently, the two connecting frames 10 are sleeved on the upper ends of the two fixed screws 12. Then, the two nuts 13 are sleeved on the tops of the two fixed screws 12 and tightened, so as to realize the connection between the connecting frame 10 and the fixed block 11, and thus realize the connection and fixation of the sealing cover 3. Then, the driving motor 4 rotates slowly, and through the cooperation of the connecting shaft 5 and the stirring frame 6, the sulfuric acid solution in the stirring tank 2 is mixed and stirred. During the mixing process, the pressure relief valve 8 at the upper end of the pressure relief pipe 7 works, and the air pressure in the stirring tank 2 is controlled through the pressure relief pipe 7, and the discharged gas is conveyed to the designated position through the pressure relief pipe 7. When sampling the sulfuric acid solution, the staff first remove the sampling plug 16, and then extract the sulfuric acid solution in the sampling pipe 15 through the sampling test tube. At the same time, through the two communicating pipes 14 provided, the sulfuric acid solution in the sampling pipe 15 is replenished. In order to ensure the sampling accuracy, the sampling test tube is taken out again, and the sulfuric acid solution in the sampling pipe 15 is extracted again, and the sample of the second extraction is detected, so as to realize the concentration detection of the sulfuric acid solution. When mixing the sulfuric acid solution, first connect the water inlet pipe 18 and the drain pipe 19 to the water source conveying device, and convey the low-temperature water into the temperature control box 17 through the water inlet pipe 18. Through the heat exchange between the cold water in the temperature control box 17 and the side wall of the stirring tank 2, the purpose of cooling the side wall of the stirring tank 2 can be realized, and the temperature of the sulfuric acid solution mixing is controlled. Finally, the liquid after heat exchange is discharged through the drain pipe 19.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although the present invention has been described above with reference to embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the present invention can be combined with each other in any way, and the reason for not exhaustively describing these combinations in this specification is only to save space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A stirring and mixing device for preparing sulfuric acid solution for a reduction process, comprising a support frame (1), characterized in that: A stirring tank (2) is installed in the support frame (1), a sealing cover (3) is installed on the upper end of the stirring tank (2), a stirring connection structure is installed on the upper end of the sealing cover (3), and the other end of the stirring connection structure is installed on the side wall of the support frame (1), and the stirring connection structure comprises a motor (4), a connecting shaft (5), a stirring frame (6), a pressure relief pipe (7), a pressure relief valve (8), four card slots (9), two connecting frames (10) and a connecting assembly; The motor (4) is fixedly mounted at the center of the upper end of the sealing cover (3); the connecting shaft (5) is embedded in the center of the sealing cover (3) through a sealing bearing, and one end is connected to the driving end of the motor (4); the stirring frame (6) is located at the lower end of the sealing cover (3), and the top end is connected to the lower end of the connecting shaft (5); the bottom end of the pressure relief pipe (7) passes through one side of the upper end of the sealing cover (3); the pressure relief valve (8) is installed at the upper end of the pressure relief pipe (7); the four slots (9) are respectively opened at the four corners of the side wall of the sealing cover (3); the two connecting frames (10) are respectively installed on the outside of two of the slots (9); the connecting assembly is fixedly mounted on the upper end of the side wall of the support frame (1), and is respectively connected to the two connecting frames (10).

2. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 1, characterized in that: The connection assembly comprises two fixing blocks (11), two fixing screws (12) and two nuts (13); The two fixing blocks (11) are respectively mounted on the upper ends of both sides of the support frame (1); the two fixing screws (12) are respectively mounted on the upper ends of the two fixing blocks (11), and the top ends are movably passed through the centers of the two connecting frames (10); and the two nuts (13) are movably sleeved on the upper ends of the two fixing screws (12).

3. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 1, characterized in that: A sampling structure is installed on the side wall of the stirring tank (2), and the sampling structure comprises two connecting pipes (14), a sampling pipe (15) and a sampling plug (16); One end of the two connecting tubes (14) is respectively connected to the side wall of the stirring tank (2), the side wall of the sampling tube (15) is connected to the other ends of the two connecting tubes, and the sampling plug (16) is movably embedded in the top end of the sampling tube (15).

4. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 1, characterized in that: A temperature control structure is installed on the outside of the mixing tank (2), and the temperature control structure comprises a temperature control box (17), a water inlet pipe (18) and a drain pipe (19); The temperature control box (17) is fixedly mounted on the outside of the stirring tank (2), one end of the water inlet pipe (18) is connected to the upper end of the side wall of the temperature control box (17), and one end of the drain pipe (19) is connected to the lower end of the side wall of the temperature control box (17).

5. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 1, characterized in that: A discharge pipe (20) is installed at the bottom end of the stirring tank (2).

6. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 5, characterized in that: A discharge valve (21) is installed at the upper end of the discharge pipe (20).

7. The stirring and mixing device for preparing sulfuric acid solution for reduction process according to claim 4, characterized in that: Control valves (22) are installed at the upper ends of the water inlet pipe (18) and the drainage pipe (19).

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