Monopotassium phosphate purification reaction kettle

By improving the stirring structure and discharge components, the problem of uneven mixing in the traditional potassium dihydrogen phosphate purification reactor has been solved, achieving more efficient material mixing and rapid emptying, thereby improving production efficiency and product quality.

CN224252799UActive Publication Date: 2026-05-19SICHUAN SHIFANG DINGLI PHOSPHORUS CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHIFANG DINGLI PHOSPHORUS CHEM CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional potassium dihydrogen phosphate purification reactors suffer from uneven mixing during the mixing process, leading to incomplete reactions or impure products, which affects product quality.

Method used

An improved stirring structure is adopted, including a motor-driven stirring rod and a sliding table system, to achieve vertical lifting of the mixing vessel and rotation of the stirring blades. Combined with the mechanical structure of the discharge component, it ensures uniform mixing and rapid discharge of materials.

Benefits of technology

It improved the reaction rate and mixing effect, optimized the mass transfer process, enhanced crystallization and precipitation control, improved production efficiency and product quality, and avoided material accumulation and stagnant substances in the reactor, ensuring the smooth operation of the production process.

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Abstract

The utility model relates to the technical field of monopotassium phosphate purification reaction kettles, and discloses a monopotassium phosphate purification reaction kettle which comprises a fixing frame, a first motor is fixedly connected to the top of the fixing frame, a lead screw is fixedly connected to the output end of the first motor, and a first sliding table is in threaded connection with the outer wall of the lead screw. A first sliding table is arranged in the fixing frame, a second sliding table is connected in the fixing frame in a sliding mode, a mixing kettle is fixedly connected between the second sliding table and the first sliding table, a stirring assembly is arranged in the mixing kettle and comprises stirring blades, and the stirring blades are connected in the mixing kettle in a rotating mode. The stirring rod is output through the motor II, so that the stirring blades rotate to mix raw materials in the mixing kettle, and finally the mixing kettle is driven to vertically lift, so that stirring at different positions is realized, the reaction rate is favorably increased, the mixing effect is optimized, the mass transfer is enhanced, the crystallization and precipitation processes are controlled, and the production efficiency and the product quality can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of potassium dihydrogen phosphate purification reactor technology, and in particular to a potassium dihydrogen phosphate purification reactor. Background Technology

[0002] Potassium dihydrogen phosphate (KH2PO4) is an important chemical fertilizer commonly used in agricultural production to provide crops with essential phosphorus and potassium. It is produced through a chemical reaction and has high water solubility, effectively promoting plant growth. To obtain higher purity KH2PO4, it usually needs to be purified. During the purification process, impurities are removed under appropriate reaction conditions, improving its quality and effectiveness, making it a more efficient agricultural fertilizer.

[0003] Traditional purification reactors mainly consist of a reaction vessel, a stirring device, a heating device, and a cooling system. The reaction vessel is used to hold the raw materials and carry out the chemical reaction, the stirring device is used to promote the uniform mixing of the reactants, the heating device provides the temperature required for the reaction, and the cooling system is used to control the temperature change after the reaction to ensure the stable progress of the reaction.

[0004] Traditional purification reactors often experience uneven mixing during the mixing process, primarily due to the design of their stirring structures. In some traditional reactors, the layout and rotation speed of the stirrer cannot effectively cover all areas of the reaction vessel, resulting in incomplete mixing of the materials during the reaction. This is especially problematic when the materials have high viscosity or the reaction system is complex, as traditional stirring structures cannot guarantee uniform distribution of the materials within the reactor. This uneven mixing affects reaction efficiency, leading to incomplete reactions or the formation of impure products, reducing purification effectiveness, and even impacting the final quality of potassium dihydrogen phosphate. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a potassium dihydrogen phosphate purification reactor, which aims to improve the problem that traditional purification reactors cannot effectively cover all areas of the entire reaction vessel, resulting in insufficient mixing of materials during the reaction process.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a potassium dihydrogen phosphate purification reactor, comprising a fixed frame, a motor fixedly connected to the top of the fixed frame, a lead screw fixedly connected to the output end of the motor, a slide table connected to the outer wall of the lead screw by threads, a slide table slidably connected inside the fixed frame, a mixing vessel fixedly connected between the slide table and the slide table, and a stirring assembly disposed inside the mixing vessel.

[0007] The stirring assembly includes a stirring blade, which is rotatably connected inside the mixing vessel. A second motor is fixedly connected to the top of the fixed frame, and a stirring rod is fixedly connected to the output end of the second motor. The top of the stirring blade is fixedly connected to the bottom end of the stirring rod, and a discharge assembly is provided at the bottom of the mixing vessel.

[0008] Furthermore, the discharge assembly includes a discharge pipe, which is fixedly connected to the lower surface of the mixing vessel.

[0009] Furthermore, a feeding platform is fixedly connected to the side wall of the fixed frame, and a fixing component is fixedly connected to the side wall of the mixing vessel.

[0010] Furthermore, a connecting platform is fixedly connected to the bottom of the fixing member, and a connecting column is rotatably connected inside the connecting platform.

[0011] Furthermore, an electric motor is fixedly connected to the side wall of the connecting platform, and a gear is fixedly connected to the output end of the electric motor.

[0012] Furthermore, a second gear is fixedly connected to the side wall of the connecting column, and the second gear meshes with the first gear.

[0013] Furthermore, a screw is fixedly connected inside the connecting column, and a pusher is threadedly connected to the outer wall of the screw.

[0014] Furthermore, a plug is fixedly connected to the side wall of the pusher, and one end of the plug is slidably connected inside the discharge pipe.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the stirring blades are first rotated by the output of two pairs of stirring rods of the motor to mix the raw materials inside the mixing vessel. Finally, the mixing vessel is vertically lifted and lowered to achieve stirring at different positions, which helps to improve the reaction rate, optimize the mixing effect, enhance mass transfer, control the crystallization and precipitation process, and can effectively improve production efficiency and product quality.

[0017] 2. In this utility model, an electric motor drives gear one to rotate, and then gear two rotates. Finally, the pusher pushes and pulls the plug so that it slides inside the discharge pipe, discharging potassium dihydrogen phosphate inside. This achieves efficient discharge, reduces the accumulation and stagnant substances in the reactor, and ensures that the reactor can be emptied quickly and completely, avoiding bottlenecks in the production process. Attached Figure Description

[0018] Figure 1 This is a perspective view of a potassium dihydrogen phosphate purification reactor proposed in this utility model;

[0019] Figure 2This is a schematic diagram of the fixing frame structure of a potassium dihydrogen phosphate purification reactor proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the feeding platform structure of a potassium dihydrogen phosphate purification reactor proposed in this utility model.

[0021] Legend:

[0022] 1. Fixed frame; 2. Motor 1; 3. Lead screw; 4. Slide 1; 5. Slide 2; 6. Motor 2; 7. Stirring rod; 8. Stirring blade; 9. Mixing vessel; 10. Fixture; 11. Connecting platform; 12. Discharge platform; 13. Discharge pipe; 14. Electric motor; 15. Gear 1; 16. Connecting column; 17. Gear 2; 18. Screw; 19. Pushing platform; 20. Plug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-2 This utility model provides an embodiment of a potassium dihydrogen phosphate purification reactor, comprising a fixed frame 1, a motor 2 fixedly connected to the top of the fixed frame 1, a lead screw 3 fixedly connected to the output end of the motor 2, a slide 4 threadedly connected to the outer wall of the lead screw 3, the slide 4 being able to move vertically under the drive of the lead screw 3 to adjust the position of the mixing vessel 9, ensuring that the mixing area of ​​the reactants can be adjusted as needed, a second slide 5 slidably connected inside the fixed frame 1, and the mixing vessel 9 fixedly connected between the second slide 5 and the first slide 4, thus enhancing the stability of the mixing vessel 9 and ensuring uniform stirring of the materials during the reaction process, a stirring assembly is provided inside the mixing vessel 9, the stirring assembly including stirring blades 8, the stirring blades 8 being rotatably connected inside the mixing vessel 9, through... The rotation of the stirring blade 8 effectively promotes material mixing, increases the reaction rate, and ensures reaction uniformity. A motor 6 is fixedly connected to the top of the fixed frame 1, and a stirring rod 7 is fixedly connected to the output end of the motor 6. The motor 6 drives the stirring rod 7 to rotate, causing the stirring blade 8 to rotate, thereby fully stirring the potassium dihydrogen phosphate inside the mixing vessel 9, improving mass transfer efficiency, and optimizing the reaction process. The top of the stirring blade 8 is fixedly connected to the bottom of the stirring rod 7, ensuring a stable connection between the stirring blade 8 and the stirring rod 7, preventing loosening or displacement during stirring. A discharge assembly is provided at the bottom of the mixing vessel 9, which can quickly discharge the potassium dihydrogen phosphate from the mixing vessel 9 after the reaction is completed, preventing material accumulation, ensuring the reaction vessel can be quickly emptied, and improving production efficiency.

[0025] Specifically, when mixing potassium dihydrogen phosphate inside the mixing vessel 9, motor 6 is first started. Motor 6 drives the stirring rod 7, causing the stirring blade 8 to rotate inside the mixing vessel 9, thereby effectively stirring the raw materials inside the mixing vessel 9. During this process, motor 2 is started simultaneously. Motor 2 drives the lead screw 3 to rotate, which in turn drives the sliding table 4 and sliding table 5 to slide vertically, allowing the mixing vessel 9 to rise and fall. Through the vertical rise and fall of the mixing vessel 9, stirring can be carried out at different positions, thereby improving the uniformity of material mixing. This process helps to increase the reaction rate, optimize the mixing effect, enhance the mass transfer between substances, and reasonably control the crystallization and precipitation process, ultimately effectively improving production efficiency and product quality.

[0026] Reference Figure 3 The discharge assembly includes a discharge pipe 13, which is fixedly connected to the lower surface of the mixing vessel 9. A discharge platform 12 is fixedly connected to the side wall of the fixing frame 1. A fixing member 10 is fixedly connected to the side wall of the mixing vessel 9. A connecting platform 11 is fixedly connected to the bottom of the fixing member 10. A connecting column 16 is rotatably connected inside the connecting platform 11. An electric motor 14 is fixedly connected to the side wall of the connecting platform 11. A gear 15 is fixedly connected to the output end of the electric motor 14. A gear 27 is fixedly connected to the side wall of the connecting column 16. The gear 217 meshes with the gear 15. A screw 18 is fixedly connected inside the connecting column 16. A pusher 19 is threadedly connected to the outer wall of the screw 18. A plug 20 is fixedly connected to the side wall of the pusher 19. One end of the plug 20 is slidably connected inside the discharge pipe 13.

[0027] Specifically, when it is necessary to discharge potassium dihydrogen phosphate mixed inside the mixing vessel 9, the electric motor 14 is first started. The electric motor 14 drives gear 15 to rotate, which in turn drives gear 17 to rotate further. The rotation of gear 17 causes the connecting column 16 on its side wall to rotate, which in turn drives the screw 18 to rotate. The rotation of the screw 18 pushes the pusher 19 to slide along the discharge pipe 13. The pusher 19 acts on the plug 20 through a push-pull action, causing the plug 20 to slide inside the discharge pipe 13, thereby discharging the potassium dihydrogen phosphate inside the mixing vessel 9. In this process, through the synergistic effect of this mechanical structure, efficient discharge is achieved, which can reduce the accumulation and stagnant substances in the reactor, ensure that the reactor can be emptied quickly and completely, avoid potential bottlenecks in the production process, and ensure the smooth operation of the production process.

[0028] Working Principle: When mixing potassium dihydrogen phosphate inside mixing vessel 9 is required, motor 6 is started. Motor 6 outputs power to stirring rod 7, causing stirring blade 8 to rotate and mix the raw materials inside mixing vessel 9. Simultaneously, motor 2 is started, driving screw 3 to rotate, which in turn drives slide 4 and slide 5 to slide vertically. This causes mixing vessel 9 to move vertically up and down, achieving stirring at different positions. This helps to improve the reaction rate, optimize the mixing effect, enhance mass transfer, control the crystallization and precipitation process, and effectively improve production efficiency and product quality. When it is necessary to discharge the potassium dihydrogen phosphate mixed inside mixing vessel 9, electric motor 14 is started, driving gear 15 to rotate. Gear 17 then rotates, causing connecting column 16 on its side wall to rotate. Screw 18 then rotates, driving pusher 19 to push and pull plug 20, causing it to slide inside discharge pipe 13, thus discharging the potassium dihydrogen phosphate inside. This achieves efficient discharge, reduces material accumulation and stagnant substances in the reactor, ensures that the reactor can be emptied quickly and completely, and avoids bottlenecks in the production process.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A potassium dihydrogen phosphate purification reactor, comprising a fixing frame (1), characterized in that: A motor (2) is fixedly connected to the top of the fixed frame (1). A lead screw (3) is fixedly connected to the output end of the motor (2). A slide table (4) is threaded onto the outer wall of the lead screw (3). A slide table (5) is slidably connected inside the fixed frame (1). A mixing vessel (9) is fixedly connected between the slide table (5) and the slide table (4). A stirring assembly is installed inside the mixing vessel (9). The stirring assembly includes a stirring blade (8), which is rotatably connected inside the mixing vessel (9). A second motor (6) is fixedly connected to the top of the fixed frame (1), and a stirring rod (7) is fixedly connected to the output end of the second motor (6). The top of the stirring blade (8) is fixedly connected to the bottom end of the stirring rod (7), and a discharge assembly is provided at the bottom of the mixing vessel (9).

2. The potassium dihydrogen phosphate purification reactor according to claim 1, characterized in that: The discharge assembly includes a discharge pipe (13), which is fixedly connected to the lower surface of the mixing vessel (9).

3. The potassium dihydrogen phosphate purification reactor according to claim 2, characterized in that: The side wall of the fixed frame (1) is fixedly connected to the unloading platform (12), and the side wall of the mixing vessel (9) is fixedly connected to the fastener (10).

4. The potassium dihydrogen phosphate purification reactor according to claim 3, characterized in that: The bottom of the fastener (10) is fixedly connected to a connecting platform (11), and a connecting column (16) is rotatably connected inside the connecting platform (11).

5. The potassium dihydrogen phosphate purification reactor according to claim 4, characterized in that: An electric motor (14) is fixedly connected to the side wall of the connecting platform (11), and a gear (15) is fixedly connected to the output end of the electric motor (14).

6. The potassium dihydrogen phosphate purification reactor according to claim 5, characterized in that: The connecting column (16) has a gear two (17) fixedly connected to its side wall, and the gear two (17) meshes with the gear one (15).

7. The potassium dihydrogen phosphate purification reactor according to claim 6, characterized in that: The connecting column (16) is internally fixedly connected to a screw (18), and the screw (18) is threadedly connected to a pusher (19) on its outer wall.

8. The potassium dihydrogen phosphate purification reactor according to claim 7, characterized in that: A plug (20) is fixedly connected to the side wall of the pusher (19), and one end of the plug (20) is slidably connected inside the discharge pipe (13).