Oxidation reaction kettle for silver nitrate production
By using airtight and insulation layers in the oxidation reactor to ensure uniform heating and thorough stirring, and using filter and joint components to treat harmful gases, the problems of uneven heating and harmful gas emissions in silver nitrate production are solved, and the problem of uneven heating and harmful gas emissions are achieved. Safe and efficient oxidation reaction.
Patent Information
- Application Number
- CN202421007979.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing oxidation reactors are unevenly heated and not thoroughly stirred in the production of silver nitrate, and the harmful gases produced by the oxidation reaction are harmful to the environment and personnel.
The airtight layer and the insulation layer are used to provide a uniform heating environment for the inner kettle body, and thoroughly stirred with the agitator. At the same time, harmful gas filtration and timely replacement of the filter screen are carried out through the filter screen and the joint assembly.
The uniform heating and thorough stirring of silver nitrate are achieved to ensure the integrity of the oxidation reaction, and through the cooperation of the filter and the joint components, it effectively filters and cleanses harmful gases, protecting staff and the environment.
Smart Images
Figure CN222267152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of silver nitrate production equipment, in particular to an oxidation reaction kettle used for silver nitrate production. Background Art
[0002] Silver nitrate is a chemical substance that is a white solid and soluble in water. Silver nitrate is often used as a reagent for precipitation reactions in laboratories to detect the presence of chloride ions. When preparing silver nitrate, it needs to be prepared through a dedicated oxidation reactor to react silver with nitric acid to obtain silver nitrate. During the preparation process, silver nitrate is toxic and may cause irritation to the skin and eyes after contact, so it should be used with caution.
[0003] However, in the prior art, when the oxidation reaction kettle is performing the oxidation reaction, the kettle body is mostly a fixed structure, which makes it difficult to ensure uniform heating, and the stirring is not thorough enough. In addition, harmful gases will be generated during the oxidation reaction of silver and nitric acid. If they are allowed to be discharged, they will cause harm to the environment and workers.
[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an oxidation reaction kettle for the production of silver nitrate, which utilizes an airtight layer and a heat-insulating layer to provide a suitable reaction environment for an inner kettle body, and cooperates with a stirring mechanism to make the inner kettle body heated more evenly and stirred more thoroughly, so that the oxidation reaction is more thorough, and the harmful gas generated during the oxidation reaction of silver and nitric acid is filtered through a filter, and the filter is replaced and cleaned in time with a snap-fit assembly to ensure its filtering effect, ensure that silver and nitric acid undergo a good oxidation reaction, and will not cause excessive harm to surrounding staff, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oxidation reaction kettle for silver nitrate production, comprising an outer kettle body, the inner part of the outer kettle body is rotatably connected to the inner kettle body, and a top plate is fixed on the upper surface of the outer kettle body, a stirring mechanism is installed between the inner kettle body and the top plate, a sealing cover is clamped and fixed on the upper surface of the inner kettle body, a clamping assembly is installed between the inner kettle body and the sealing cover, two feed ports are symmetrically fixed on both sides of the inner side of the sealing cover, a filter screen is fixed between the two feed ports, an exhaust hood is fixed at the bottom of the sealing cover corresponding to the position above the filter screen, the top of the exhaust hood penetrates and extends to the outside of the sealing cover to be fixed with an exhaust port, and an exhaust fan is fixed inside the exhaust port.
[0007] Furthermore, the stirring mechanism includes a motor fixed on the upper surface of the top plate, the transmission end of the motor passes through and extends to the bottom of the top plate where a triangular plate is fixed, and the transmission end of the motor passes through and extends to the bottom of the triangular plate where an internal gear is fixed, the three corners of the bottom of the triangular plate are rotatably connected to external gears that mesh with the internal gear, and the three corners of the triangular plate are fixed to curved rods, and the bottom of the curved rod is fixed to the upper surface of the inner kettle body.
[0008] Furthermore, a rotating shaft penetrating through and extending to the inner kettle body is fixed to the bottom of the outer gear, and a plurality of stirring blades are sleeved at equal intervals on the outer bottom of the rotating shaft.
[0009] Furthermore, the locking assembly includes two guide grooves symmetrically opened inside the top of the inner kettle body, springs and blocks are fixed on both sides of the guide grooves respectively, a paddle penetrating through and extending to the outside of the guide grooves is fixed on the upper surface of the block, and a slot is opened inside the sealing cover at the position corresponding to the block.
[0010] Furthermore, an insulation layer is provided inside the outer kettle body at a position corresponding to the outer layer of the inner kettle body, and an airtight layer is provided inside the outer kettle body at a position corresponding to the outer layer of the insulation layer, a heating pipe is symmetrically fixed inside the insulation layer and passes through the airtight layer and extends to the outside of the outer kettle body, an airtight valve is fixed inside the airtight layer and passes through the outer kettle body, and a discharge port is fixed at the bottom of the inner kettle body and passes through the outer kettle body.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0012] 1. The utility model is provided with a stirring mechanism, which utilizes a motor in conjunction with a triangular plate and a curved rod to drive the inner kettle body to rotate, thereby forming a uniform heating effect. While the inner kettle body rotates and is uniformly heated, the motor cooperates with the internal gear and the external gear to drive the rotating shaft to rotate. Since the external gear is rotationally connected with the triangular plate and meshes with the internal gear, when the inner kettle body rotates, the external gear drives the rotating shaft to move in a circular motion, and the external gear drives itself to rotate with the internal gear transmission, that is, the rotating shaft drives the stirring plate to rotate while the inner kettle body moves in a circular motion, thereby forming a more thorough mixing of silver and nitric acid, so that the subsequent oxidation reaction is more thorough.
[0013] 2. In the utility model, when the oxidation reaction is carried out, the exhaust hood has a gathering effect on the harmful substances produced, and the gas is filtered through the filter screen to remove the harmful substances inside, and then it is extracted by the exhaust fan. After long-term use, the card block is driven out of the card slot by the paddle and the guide slider to release the engagement state between the sealing cover and the inner kettle body. Then the sealing cover can be removed to clean and replace the filter screen inside it to ensure its filtering effect.
[0014] In summary, the utility model utilizes an airtight layer and a heat-insulating layer to provide a suitable reaction environment for the inner kettle body, and cooperates with a stirring mechanism to make the inner kettle body heated more evenly and stirred more thoroughly, so that the oxidation reaction is more thorough. The harmful gases generated during the oxidation reaction of silver and nitric acid are filtered through a filter, and the filter is replaced and cleaned in time with the engagement assembly to ensure its filtering effect, ensure a good oxidation reaction between silver and nitric acid, and will not cause excessive harm to surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 is a cross-sectional view of the interior of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the stirring mechanism of the utility model;
[0018] Figure 4 This is a combined view of the external gear and the rotating shaft of the utility model;
[0019] Figure 5 It is a structural schematic diagram of the inner kettle body of the utility model;
[0020] Figure 6 It is a structural schematic diagram of the clamping assembly of the utility model.
[0021] Figure numerals: 1. outer kettle body; 2. heating tube; 3. airtight valve; 4. inner kettle body; 5. top plate; 6. motor; 7. exhaust port; 8. snap-fit assembly; 9. sealing cover; 10. exhaust fan; 11. stirring mechanism; 12. discharge port; 13. insulation layer; 14. airtight layer; 15. triangular plate; 16. guide groove; 17. curved rod; 18. outer gear; 19. inner gear; 20. rotating shaft; 21. stirring blade; 22. paddle; 23. guide slider; 24. spring; 25. block; 26. filter screen; 27. exhaust hood; 28. slot. DETAILED DESCRIPTION
[0022] 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 of 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.
[0023] Embodiment 1:
[0024] This embodiment aims to address the problem that in the prior art, when an oxidation reaction kettle is performing an oxidation reaction, the kettle body is mostly a fixed structure, which makes it difficult to ensure uniform heating and the stirring is not thorough enough.
[0025] like Figure 1-4 As shown, an oxidation reaction kettle for silver nitrate production comprises an outer kettle body 1, an inner kettle body 4 is rotatably connected inside the outer kettle body 1, a top plate 5 is fixed on the upper surface of the outer kettle body 1, a stirring mechanism 11 is installed between the inner kettle body 4 and the top plate 5, the stirring mechanism 11 comprises a motor 6 fixed on the upper surface of the top plate 5, a driving end of the motor 6 penetrates and extends to the bottom of the top plate 5 where a triangular plate 15 is fixed, and a driving end of the motor 6 penetrates and extends to the bottom of the triangular plate 15 where an internal gear 19 is fixed;
[0026] The three corners at the bottom of the triangular plate 15 are all rotatably connected with external gears 18 meshing with the internal gear 19. When the triangular plate 15 rotates, the internal gear 19 rotates together, and the internal gear 19 drives the external gear 18 meshing with it to rotate. The three corners of the triangular plate 15 are fixed with curved rods 17. When the triangular plate 15 rotates, the curved rod 17 is driven to rotate. The bottom of the curved rod 17 is fixed to the upper surface of the inner kettle body 4. The inner kettle body 4 is driven to rotate by the rotation of the curved rod 17. The bottom of the external gear 18 is fixed with a rotating shaft 20 that penetrates and extends to the inside of the inner kettle body 4. A plurality of stirring blades 21 are equidistantly sleeved on the outer bottom of the rotating shaft 20. The rotating shaft 20 is driven to rotate by the external gear 18, and stirring is performed by the stirring blades 21.
[0027] An insulation layer 13 is provided at a position inside the outer kettle body 1 corresponding to the outer layer of the inner kettle body 4. The insulation layer 13 is used to heat the inner kettle body 4 and form an insulation effect to avoid excessive temperature changes that lead to incomplete oxidation reaction. An airtight layer 14 is provided at a position inside the outer kettle body 1 corresponding to the outer layer of the insulation layer 13. A heating tube 2 that penetrates the airtight layer 14 and extends to the outside of the outer kettle body 1 is symmetrically fixed inside the insulation layer 13. An airtight valve 3 that penetrates and extends to the outside of the outer kettle body 1 is fixed inside the airtight layer 14. The air pressure inside the airtight layer 14 is regulated by the airtight valve 3 to control the rate of the oxidation reaction. A discharge port 12 that penetrates and extends to the outside of the outer kettle body 1 is fixed at the bottom of the inner kettle body 4.
[0028] When the oxidation reaction is carried out, the motor 6 is started to drive the triangular plate 15 to rotate. The rotation of the triangular plate 15 drives the curved rod 17 to rotate, and then drives the inner kettle body 4 to rotate, thereby forming a uniform heating effect and avoiding local uneven heating. When the triangular plate 15 rotates, the inner gear 19 rotates with it, and the rotation of the feed port 29 drives the outer gear 18 to rotate. At the same time, the outer gear 18 makes a circular motion consistent with the inner kettle body 4 as the triangular plate 15 rotates. Then, when the inner kettle body 4 rotates, the outer gear 18 rotates together with it, and the self-rotation of the outer gear 18 drives the rotating shaft 20 to rotate, thereby driving the stirring plate 21 to form a stirring effect, so that the oxidation reaction of silver and nitric acid is better.
[0029] Embodiment 2:
[0030] This embodiment aims to address the problem that harmful gases will be generated when the oxidation reaction kettle in the prior art performs the oxidation reaction of silver and nitric acid, and if they are allowed to be discharged, they will cause harm to the environment and workers.
[0031] like Figure 4-6 As shown, the embodiment is an oxidation reaction kettle for silver nitrate production, and a sealing cover 9 is fixedly engaged on the upper surface of the inner kettle body 4, and a matching sealing block is arranged at the engaging position of the inner kettle body 4 and the sealing cover 9 to form a good sealing effect, and a clamping assembly 8 is installed between the inner kettle body 4 and the sealing cover 9, and two feed ports 29 are symmetrically fixed on both sides of the inner side of the sealing cover 9, and a filter screen 26 is fixed between the two feed ports 29, and an exhaust hood 27 is fixed at the bottom of the sealing cover 9 corresponding to the position above the filter screen 26, and the exhaust hood 27 is funnel-shaped, and the size of the opening is exactly the same as that of the filter screen 26 to avoid gas leakage, and the top of the exhaust hood 27 penetrates and extends to the outside of the sealing cover 9 to be fixed with an exhaust port 7, and an exhaust fan 10 is fixed inside the exhaust port 7;
[0032] The clamping assembly 8 includes two guide grooves 16 symmetrically opened inside the top of the inner kettle body 4, and springs 24 and clamping blocks 25 are fixed on both sides of the guide grooves 16 respectively. The springs 24 are used to form a reset effect on the clamping blocks 25. The upper surface of the clamping block 25 is fixed with a paddle 22 that penetrates and extends to the outside of the guide grooves 16. A clamping groove 28 is opened inside the sealing cover 9 at the position corresponding to the clamping block 25. The clamping effect of the sealing cover 9 and the clamping groove 28 is used to form a stable fixing effect between the inner kettle body 4 and the sealing cover 9.
[0033] When the oxidation reaction is carried out, the exhaust fan 10 is started to extract the gas inside the inner kettle body 4. After the gas is filtered by the filter screen 26, it is discharged to the exhaust port 7 through the exhaust hood 27. After long-term use, the paddle 22 is moved to drive the guide slider 23 to move, and the movement of the guide slider 23 drives the block 25 to move out of the slot 28, thereby releasing the clamping effect between the inner kettle body 4 and the sealing cover 9. Then the sealing cover 9 is removed and the filter screen 26 inside it is replaced to maintain its filtering effect.
[0034] Working process and principle of this utility model:
[0035] Step 1: When the oxidation reaction is carried out, the motor 6 is started to drive the triangular plate 15 to rotate, and the rotation of the triangular plate 15 drives the curved rod 17 to rotate, and then drives the inner kettle body 4 to rotate, so as to form a uniform heating effect and avoid the situation of local uneven heating. When the triangular plate 15 rotates, the inner gear 19 rotates with it, and the feed port 29 rotates to drive the outer gear 18 to rotate. At the same time, the outer gear 18 makes a circular motion consistent with the inner kettle body 4 as the triangular plate 15 rotates, and then when the inner kettle body 4 rotates, the outer gear 18 rotates together with it, and the outer gear 18 rotates to drive the rotating shaft 20 to rotate, thereby driving the stirring piece 21 to form a stirring effect, so that the oxidation reaction effect of silver and nitric acid is better;
[0036] Step 2: When the oxidation reaction is carried out, the exhaust fan 10 is started to extract the gas inside the inner kettle body 4. After the gas passes through the filter screen 26 to form a filtering effect, it is discharged to the exhaust port 7 through the exhaust hood 27. After long-term use, the paddle 22 is moved to drive the guide slider 23 to move, and the movement of the guide slider 23 drives the block 25 to move out of the slot 28, thereby releasing the clamping effect between the inner kettle body 4 and the sealing cover 9, and then the sealing cover 9 is removed, and the filter screen 26 inside it is replaced to maintain its filtering effect.
[0037] In summary, the stirring mechanism 11 is used to drive the inner kettle body 4 to rotate so that it is heated evenly during the oxidation reaction. At the same time, the stirring plate 21 is used to stir the silver and nitric acid inside it more thoroughly to make the reaction more complete. During the reaction, the exhaust fan 10 is used to discharge the gas inside it, and a filtering effect is formed through the filter screen 26. The locking assembly 8 is used to clean and replace the filter screen 26 in time to ensure its filtering effect.
[0038] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An oxidation reactor for silver nitrate production, comprising an outer reactor body (1), characterized in that: The inner kettle body (4) is rotatably connected to the inner kettle body (1), and a top plate (5) is fixed on the upper surface of the outer kettle body (1). A stirring mechanism (11) is installed between the inner kettle body (4) and the top plate (5). A sealing cover (9) is fixedly engaged on the upper surface of the inner kettle body (4). A locking assembly (8) is installed between the inner kettle body (4) and the sealing cover (9). Two feed ports (29) are symmetrically fixed on both sides of the inner side of the sealing cover (9), and a filter screen (26) is fixed between the two feed ports (29). An exhaust cover (27) is fixed at the bottom of the sealing cover (9) at a position corresponding to the upper side of the filter screen (26). The top end of the exhaust cover (27) penetrates and extends to an exhaust port (7) fixed to the outside of the sealing cover (9), and an exhaust fan (10) is fixed inside the exhaust port (7).
2. An oxidation reaction kettle for silver nitrate production according to claim 1, characterized in that: The stirring mechanism (11) comprises a motor (6) fixed to the upper surface of the top plate (5); the transmission end of the motor (6) penetrates and extends to the bottom of the top plate (5) where a triangular plate (15) is fixed, and the transmission end of the motor (6) penetrates and extends to the bottom of the triangular plate (15) where an internal gear (19) is fixed, and the three corners of the bottom of the triangular plate (15) are rotatably connected to external gears (18) meshing with the internal gear (19), and the three corners of the triangular plate (15) are fixed to curved rods (17), and the bottom of the curved rod (17) is fixed to the upper surface of the inner kettle body (4).
3. An oxidation reaction kettle for silver nitrate production according to claim 2, characterized in that: A rotating shaft (20) is fixed to the bottom of the outer gear (18) and penetrates through and extends into the interior of the inner kettle body (4). A plurality of stirring blades (21) are sleeved at equal intervals on the outer bottom of the rotating shaft (20).
4. An oxidation reaction kettle for silver nitrate production according to claim 1, characterized in that: The locking assembly (8) comprises two guide grooves (16) symmetrically arranged inside the top end of the inner kettle body (4), a spring (24) and a clamping block (25) are respectively fixed on both sides of the guide groove (16), a paddle (22) penetrating through and extending to the outside of the guide groove (16) is fixed on the upper surface of the clamping block (25), and a clamping groove (28) is arranged inside the sealing cover (9) at a position corresponding to the clamping block (25).
5. An oxidation reaction kettle for silver nitrate production according to claim 1, characterized in that: A heat-insulating layer (13) is provided inside the outer kettle body (1) at a position corresponding to the outer layer of the inner kettle body (4), and an airtight layer (14) is provided inside the outer kettle body (1) at a position corresponding to the outer layer of the heat-insulating layer (13). A heating pipe (2) is symmetrically fixed inside the heat-insulating layer (13) and penetrates the airtight layer (14) and extends to the outside of the outer kettle body (1). An airtight valve (3) is fixed inside the airtight layer (14) and penetrates and extends to the outside of the outer kettle body (1). A discharge port (12) is fixed at the bottom of the inner kettle body (4) and penetrates and extends to the outside of the outer kettle body (1).