Chelation reaction kettle for preparing fish protein fertilizer

Abstract

The invention relates to the technical field of chelation reaction kettles, and discloses a chelation reaction kettle for fish protein fertilizer preparation, the chelation reaction kettle comprises a base, the upper side of the base is fixedly connected with a kettle body, the upper side of the outer part of the kettle body is fixedly connected with a first mounting ring, and the first mounting ring is connected with a second mounting ring through a bolt; a kettle cover is fixedly connected to the interior of the second mounting ring, a conveying assembly is fixedly connected to the left side of the upper part of the kettle cover, the conveying assembly is used for conveying the fish protein fertilizer, a motor is fixedly connected to the upper side of the kettle cover, and a stirring shaft is fixedly connected to the output end of the motor. Through the integrated stirring and wall scraping functions, the mixing problem of high-viscosity fish protein raw materials in the chelation reaction is effectively solved, meanwhile, through automatic switching of the heating and cooling modes, the reaction temperature can be accurately maintained in the optimal interval set by the process, and the temperature sensitivity problem of the fish protein chelation reaction is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of chelation reactor technology, specifically a chelation reactor for preparing fish protein fertilizer. Background Technology

[0002] In modern agriculture, to improve the absorption efficiency of micronutrients by crops, fish protein chelated fertilizers rich in active peptides have emerged and gained market favor. Their production process typically involves chelating fish protein slurry, obtained through pretreatment processes such as enzymatic or bacterial hydrolysis, with an inorganic trace element salt solution. This step is crucial in determining the stability and bioavailability of the final product. Therefore, the performance of the chelation reactor directly affects the quality and market competitiveness of fish protein fertilizers, making the development of a high-efficiency, professional chelation reaction device a clear industry need.

[0003] Currently, the industry widely adopts visualized, multi-functional reaction vessels for chelation production. These devices typically feature a sealed stainless steel vessel body and can be automatically controlled and monitored via a PLC system. Their external jacket can be circulated with steam or hot water to provide basic heat for the reaction. Simultaneously, a conventional stirring device is installed inside the vessel to initially mix the added fish protein slurry with the trace element solution, promoting contact between the two to a certain extent.

[0004] However, when these general-purpose devices are specifically designed for high-quality fish protein chelation reactions, their lack of specificity becomes a bottleneck restricting production efficiency and product quality. First, biodegraded fish protein slurry typically has high viscosity. Conventional agitators tend to form a slow-flowing "boundary layer" around the vessel wall during operation, causing material to stick to the wall. This not only hinders the binding of trace elements to protein molecules, affecting the chelation rate, but also severely impedes heat transfer. Second, the chelation reaction is highly temperature-sensitive and may be exothermic. General-purpose equipment relies on jackets for heat exchange, resulting in slow cooling responses. It is particularly ineffective against the "insulating layer" formed by the sticky wall, easily leading to protein denaturation due to excessively high local temperatures, thus destroying product activity. Finally, high-viscosity protein materials are extremely difficult to clean after production. Residues are not only potential sources of microbial contamination but also cause serious cross-contamination when changing trace element formulations. Traditional manual or simple rinsing methods are insufficient to meet high-standard production requirements. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a chelation reactor for fish protein fertilizer preparation. This solves the problems that existing reactors, while used in fish protein chelation production, still commonly face issues such as uneven mixing due to material sticking to the walls, delayed temperature control, and difficulty in cleaning, which can easily lead to cross-contamination when processing high-viscosity slurries.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a chelation reactor for preparing fish protein fertilizer, comprising a base, a reactor body fixedly connected to the upper side of the base, a first mounting ring fixedly connected to the upper outer side of the reactor body, a second mounting ring connected to the first mounting ring by bolts, a reactor cover fixedly connected inside the second mounting ring, a material conveying assembly fixedly connected to the upper left side of the reactor cover for conveying fish protein fertilizer, a motor fixedly connected to the upper side of the reactor cover, a stirring shaft fixedly connected to the output end of the motor, fixed sleeves fixedly connected to both outer sides of the stirring shaft, fixed rods fixedly connected to the four outer corners of the fixed sleeves, a scraper fixedly connected to the far end of the fixed rod, the scraper slidably connected to the inner wall of the reactor body, fixed plates fixedly connected to both outer sides of the stirring shaft, and stirring blades fixedly connected to the close side of the two fixed plates.

[0007] Preferably, the feeding assembly includes a feed pipe, which is fixedly connected to the upper left side of the vessel lid, and a discharge pipe is fixedly connected to the lower right side of the vessel body. Both the feed pipe and the discharge pipe are equipped with control valves on their exteriors, and a control panel is fixedly connected to the front side of the vessel body.

[0008] Preferably, the vessel body is externally fixedly connected to a fixed cavity, and the fixed cavity is internally fixedly connected to two sides of a support plate. A uniformly distributed heating wire is fixedly connected to the adjacent side of the support plate. The heating wire is disposed inside the fixed cavity. A vacuum pump is fixedly connected to the upper left side of the base. A temperature control component is fixedly connected to the output end of the vacuum pump. The temperature control component is used to precisely control the reaction temperature and maintain it within the optimal temperature range for the chelation reaction.

[0009] Preferably, the temperature control component includes a gas supply pipe, which is fixedly connected to the output end of the air pump. A cooler is fixedly connected to the rear end of the gas supply pipe, and a delivery pipe is fixedly connected to the output end of the cooler. The delivery pipe is fixedly connected to the left side of the inside of the fixed cavity.

[0010] Preferably, a water storage tank is fixedly connected to the upper rear side of the base, a water inlet is fixedly connected to the upper side of the water storage tank, a water pumping pipe is fixedly connected to the left side of the water storage tank, the water pumping pipe is fixedly connected to the input end of the water pump, and a cleaning component is fixedly connected to the output end of the water pump. The cleaning component can effectively prevent cross-contamination during the production of fish protein fertilizer.

[0011] Preferably, the cleaning component includes a water supply pipe, which is fixedly connected to the output end of a water pump. A collection box is fixedly connected to the front end of the water supply pipe, and uniformly distributed nozzles are fixedly connected inside the collection box. The collection box is fixedly connected to the upper side of the inside of the vessel body.

[0012] Preferably, the external connection of the conveying pipe is a first buckle, which is fixedly connected to the left side of the fixed cavity.

[0013] Preferably, the water pipe is externally fixedly connected with a second buckle, which is fixedly connected to the rear side of the fixing cavity.

[0014] Preferably, a fixing ring is rotatably connected to the bottom end of the stirring shaft, and the fixing ring is fixedly connected to the lower inside of the vessel body.

[0015] Preferably, the water pump is located on the left side of the water storage tank, and the water pump is fixedly connected to the upper rear side of the base.

[0016] Working Principle: When using this device, the operator presets key process parameters such as stirring speed, reaction time, and temperature required for the chelation reaction via the control panel on the front of the vessel. After setting, the control valve on the feed pipe is opened, and the pretreated fish protein raw material liquid and the solution containing trace elements are sequentially fed into the sealed reaction space formed by the vessel body and lid. After the materials are added, the motor is started, and the motor drives the stirring shaft to rotate stably. During the rotation, the stirring shaft drives two core components to work together: the stirring blades in the middle strongly shear, tumble, and convect the main material in the vessel, promoting the mixing of fish protein molecules and metals. Ions come into full contact, thus accelerating the rate and efficiency of the chelation reaction. Simultaneously, a scraper located on the outer edge rotates synchronously against the inner wall of the reactor, scraping off the viscous material adhering to the wall and drawing it into the main fluid. This combination of stirring and scraping effectively solves the problems of uneven mixing and poor local heat transfer of high-viscosity materials, ensuring the uniformity of material state and temperature throughout the reaction system. Once the reaction reaches the preset time, the motor stops, and the operator opens the control valve on the discharge pipe at the bottom of the reactor, discharging the finished fish protein chelated fertilizer by gravity or pumping. Throughout the entire process, the base provides stable support for the equipment, making it suitable for various applications. Fish protein raw materials with high viscosity after physical fermentation or enzymatic hydrolysis are subjected to a highly efficient and uniform chelation reaction through precise mechanical and process control. When the process requires heating, the control system activates the heating wire in the fixed cavity. The heating wire converts electrical energy into heat energy, which is then conducted through the metal wall of the vessel to indirectly and uniformly heat the internal materials. This process is typically monitored in real time by a temperature probe, which feeds the data back to the control system to precisely adjust the heating power, thereby achieving stable heating and preventing localized overheating. When the process requires cooling or the reaction is exothermic, causing the temperature to exceed the set upper limit, the control system initiates a cooling process. The air pump starts running to ventilate the vessel with ambient air. The air is drawn in and compressed through a gas delivery pipe to a cooler. As the air flows through the cooler, it is forcibly cooled, and the resulting low-temperature airflow is then injected into a fixed cavity outside the reactor body through a delivery pipe. The cold airflow circulates in the fixed cavity, exchanging heat thoroughly with the outer wall of the reactor body, efficiently removing excess heat, thereby achieving precise cooling of the internal materials. By automatically switching and coordinating the heating and cooling operation of the heating wire and the air pump, the equipment can precisely maintain the reaction temperature inside the reactor body within the optimal range set by the process. This is crucial for ensuring the bioactivity of fish protein, improving the efficiency of the chelation reaction, and ensuring the quality stability of the final fertilizer product between batches.After confirming that the finished product material inside the reactor has been emptied through the discharge pipe, the operator injects a preset amount of clean water or a specific cleaning solution into the water storage tank through the water inlet. Once the cleaning operation is initiated, the water pump starts running, drawing cleaning liquid from the storage tank through the pump pipe and pressurizing it. The high-pressure cleaning liquid is then stably transported through the water pipe to a central tank installed at the top of the reactor. This central tank acts as a distribution manifold, evenly distributing the incoming high-pressure liquid to multiple nozzles fixedly connected inside. The nozzles then spray the liquid out at a set pressure and angle in the form of a high-speed jet. The high-energy water jet continuously impacts and scrubs the surfaces of all parts that come into contact with the material, including the inner wall of the reactor, the stirring shaft, the stirring blades, and the scraper. This effectively peels off, dissolves, and washes away fish protein fertilizer residue adhering to the equipment surface, flushing it to the bottom of the reactor. The cleaning wastewater containing residue is discharged through the discharge pipe. This thorough cleaning of the reactor interior is a crucial step in preventing cross-contamination during continuous production of multiple batches of products with different formulations.

[0017] This invention provides a chelation reactor for preparing fish protein fertilizer. It has the following beneficial effects: 1. This invention effectively solves the mixing problem of high-viscosity fish protein raw materials in chelation reactions by integrating stirring and wall scraping functions. When the equipment is running, the motor drives the stirring shaft, and the stirring blades on it perform efficient shearing and mixing of the materials to accelerate the reaction process. At the same time, the scraper simultaneously scrapes the inner wall of the reactor, bringing the adhering materials back into the main body, ensuring no dead corners in the mixing and uniform heat transfer. This design, combined with the precise setting of process parameters on the control panel, not only significantly improves the efficiency of the chelation reaction and the uniformity of the product, but also avoids losses and quality degradation caused by materials sticking to the wall. It realizes efficient and controllable automated production of high-viscosity materials, and effectively guarantees the stable quality of the finished fish protein fertilizer.

[0018] 2. This invention achieves uniform indirect heating through heating wires installed in a fixed cavity outside the reactor body, while simultaneously utilizing an air pump and a cooler to deliver cold air into the same fixed cavity for efficient cooling. By automatically switching between heating and cooling modes, the reaction temperature can be precisely maintained within the optimal range set by the process, effectively solving the problem of temperature sensitivity in fish protein chelation reactions. This precise control not only ensures the bioactivity of fish proteins and avoids quality deterioration caused by temperature runaway, but also improves reaction efficiency and the quality stability between batches of the final fertilizer product, ensuring the reliability of the production process.

[0019] 3. This invention uses a water pump and evenly distributed nozzles inside to generate a high-pressure jet that powerfully washes all contact surfaces, including the inner wall of the vessel and the stirring shaft, thereby achieving rapid and thorough automated cleaning and effectively removing residues of high-viscosity materials such as fish protein. This not only significantly improves cleaning efficiency and shortens equipment changeover time, but more importantly, it fundamentally avoids cross-contamination between batches caused by incomplete manual cleaning, providing a reliable guarantee for ensuring product quality stability and production continuity. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a cross-sectional view of the vessel body of the present invention; Figure 4 This is a schematic diagram of the drive component structure of the present invention; Figure 5 This is a schematic diagram of the temperature control component structure of the present invention; Figure 6 This is a schematic diagram of the cleaning component structure of the present invention.

[0021] The components are as follows: 1. Base; 2. Vessel body; 3. First mounting ring; 4. Second mounting ring; 5. Bolt; 6. Vessel lid; 7. Feed pipe; 8. Discharge pipe; 9. Control panel; 10. Motor; 11. Stirring shaft; 12. Fixing sleeve; 13. Fixing rod; 14. Scraper; 15. Fixing plate; 16. Stirring blade; 17. Fixing ring; 18. Fixing cavity; 19. Support plate; 20. Heating wire; 21. Air pump; 22. Air supply pipe; 23. Refrigerator; 24. Delivery pipe; 25. First buckle; 26. Water storage tank; 27. Water inlet; 28. Water pump; 29. ​​Water pump; 30. Water supply pipe; 31. Second buckle; 32. Centralized box; 33. Nozzle; 34. Control valve. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please see the appendix Figure 1 -Appendix Figure 4This invention provides a chelation reactor for preparing fish protein fertilizer, comprising a base 1, a reactor body 2 fixedly connected to the upper side of the base 1, a first mounting ring 3 fixedly connected to the upper outer side of the reactor body 2, a second mounting ring 4 connected to the first mounting ring 3 by bolts 5, a reactor cover 6 fixedly connected inside the second mounting ring 4, a conveying assembly fixedly connected to the upper left side of the reactor cover 6 for conveying fish protein fertilizer, a motor 10 fixedly connected to the upper side of the reactor cover 6, a stirring shaft 11 fixedly connected to the output end of the motor 10, and fixing sleeves 1 fixedly connected to both outer sides of the stirring shaft 11. 2. Fixing rods 13 are fixedly connected to the four outer corners of the fixing sleeve 12. Scrapers 14 are fixedly connected to the opposite ends of the fixing rods 13. Scrapers 14 are slidably connected to the inner wall of the vessel body 2. Fixing plates 15 are fixedly connected to both outer sides of the stirring shaft 11. Stirring blades 16 are fixedly connected to the adjacent side of the two fixing plates 15. The material conveying assembly includes a feed pipe 7, which is fixedly connected to the upper left side of the vessel cover 6. A discharge pipe 8 is fixedly connected to the lower right side of the vessel body 2. Control valves 34 are provided on the outside of both the feed pipe 7 and the discharge pipe 8. A control panel 9 is fixedly connected to the front side of the vessel body 2.

[0024] When using this device, the operator presets key process parameters such as stirring speed, reaction time, and temperature required for the chelation reaction via the control panel 9 on the front side of the vessel body 2. After setting, the control valve 34 on the feed pipe 7 is opened to sequentially transport the pretreated fish protein raw material liquid and the solution containing trace elements into the sealed reaction space formed by the vessel body 2 and the vessel lid 6. After the materials are added, the motor 10 is started. The motor 10 drives the stirring shaft 11 to rotate stably. During the rotation, the stirring shaft 11 drives two core components to work together: the stirring blades 16 located in the middle perform strong shearing, tumbling, and convection mixing on the main material in the vessel, promoting full contact between fish protein molecules and metal ions, thereby accelerating the rate and efficiency of the chelation reaction. Simultaneously, the scraper 14 located on the outer edge rotates synchronously against the inner wall of the vessel 2, scraping off the viscous material adhering to the wall surface in real time and entraining it into the main fluid. The combined action of stirring and scraping effectively solves the problems of uneven mixing of high-viscosity materials and poor local heat transfer, ensuring the uniformity of material state and temperature throughout the reaction system. When the reaction reaches the preset time, the motor 10 stops running, and the operator opens the control valve 34 on the discharge pipe 8 on the lower side of the vessel 2, using gravity or pumping to discharge the prepared fish protein chelated fertilizer product. Throughout the entire process, the base 1 always provides stable support for the equipment, making it suitable for processing fish protein raw materials with high viscosity after fermentation or enzymatic hydrolysis. Through precise mechanical and process control, efficient and uniform chelation reaction is achieved.

[0025] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 5The vessel body 2 is externally fixedly connected to a fixed cavity 18. Support plates 19 are fixedly connected to both sides of the interior of the fixed cavity 18. Heating wires 20 are uniformly distributed and fixedly connected to the adjacent side of the support plates 19. The heating wires 20 are located inside the fixed cavity 18. A vacuum pump 21 is fixedly connected to the upper left side of the base 1. A temperature control component is fixedly connected to the output end of the vacuum pump 21. The temperature control component is used to precisely control the reaction temperature and maintain it within the optimal temperature range for the chelation reaction. The temperature control component includes a gas supply pipe 22, which is fixedly connected to the output end of the vacuum pump 21. A cooler 23 is fixedly connected to the rear end of the gas supply pipe 22. A delivery pipe 24 is fixedly connected to the output end of the cooler 23. The delivery pipe 24 is fixedly connected to the left side of the interior of the fixed cavity 18.

[0026] When using this device, if the process requires a temperature increase, the control system will activate the heating wire 20 in the fixed cavity 18. The heating wire 20 converts electrical energy into heat energy, which is then conducted through the metal wall of the vessel 2 to indirectly and uniformly heat the internal materials. This process is typically monitored in real time by a temperature probe, which feeds the data back to the control system to precisely adjust the heating power, thereby achieving stable heating and preventing localized overheating. If the process requires a temperature decrease or the reaction is exothermic, causing the temperature to exceed the set upper limit, the control system will initiate a cooling process. The vacuum pump 21 will start running, drawing in ambient air and compressing it through the air supply pipe 22 to the cooler 23. As the gas flows through the cooler 23, it is forcibly cooled. The resulting low-temperature gas flow is then injected into the fixed cavity 18 outside the vessel body 2 through the delivery pipe 24. The cold gas flow circulates in the fixed cavity 18, fully exchanging heat with the outer wall of the vessel body 2, efficiently removing excess heat, thereby achieving precise cooling of the internal materials. By automatically switching and coordinating the heating start and stop of the heating wire 20 and the cooling operation of the air pump 21, the equipment can precisely maintain the reaction temperature inside the vessel body 2 within the optimal range set by the process. This is crucial for ensuring the bioactivity of fish protein, improving the chelation reaction efficiency, and ensuring the quality stability of the final fertilizer product between batches.

[0027] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 6 A water storage tank 26 is fixedly connected to the upper rear side of the base 1. A water inlet 27 is fixedly connected to the upper side of the water storage tank 26. A water pumping pipe 28 is fixedly connected to the left side of the water storage tank 26. The water pumping pipe 28 is fixedly connected to the input end of the water pump 29. A cleaning component is fixedly connected to the output end of the water pump 29. The cleaning component can effectively prevent cross-contamination during the production of fish protein fertilizer. The cleaning component includes a water supply pipe 30, which is fixedly connected to the output end of the water pump 29. A collection box 32 is fixedly connected to the front end of the water supply pipe 30. Evenly distributed nozzles 33 are fixedly connected inside the collection box 32. The collection box 32 is fixedly connected to the upper side of the inside of the vessel body 2.

[0028] When using this device, after confirming that the finished material in the vessel 2 has been emptied through the discharge pipe 8, the operator injects a preset amount of clean water or a specific cleaning solution into the water storage tank 26 through the water inlet 27. After the cleaning operation is started, the water pump 29 starts running, drawing cleaning liquid from the water storage tank 26 through the water pipe 28 and pressurizing it. The high-pressure cleaning liquid is then stably transported through the water delivery pipe 30 to the central tank 32 installed at the top of the vessel 2. The central tank 32 acts as a distribution manifold, evenly distributing the incoming high-pressure liquid to multiple nozzles 33 fixedly connected inside it. 33 Then, with the set pressure and angle, the liquid is sprayed out in the form of a high-speed jet. The high-energy water jet continuously impacts and scrubs the inner wall of the vessel 2, the stirring shaft 11, the stirring blades 16, and the scraper 14, as well as all the parts that come into contact with the material. This effectively peels off, dissolves and washes the fish protein fertilizer residues adhering to the surface of the equipment to the bottom of the vessel 2. The cleaning wastewater containing the residues is discharged through the discharge pipe 8. This thorough cleaning of the inside of the reactor is a key step in ensuring that cross-contamination is avoided in the continuous production of multiple batches of products with different formulations.

[0029] Please see the appendix Figure 1 -Appendix Figure 6 The external connection of the conveying pipe 24 is a first buckle 25, which is fixedly connected to the left side of the fixed cavity 18; the external connection of the water conveying pipe 30 is a second buckle 31, which is fixedly connected to the rear side of the fixed cavity 18; the bottom end of the stirring shaft 11 is rotatably connected to a fixing ring 17, which is fixedly connected to the lower side of the inside of the vessel body 2; the water pump 29 is located on the left side of the water storage tank 26, and the water pump 29 is fixedly connected to the upper rear side of the base 1.

[0030] The conveying pipe 24 is securely fixed to the left side of the fixed cavity 18 via an external first buckle 25, which supports and limits the pipe conveying cooling air, effectively preventing the pipe from loosening or shifting due to vibration during equipment operation; the water conveying pipe 30 is externally fastened to the rear side of the fixed cavity 18 via a second buckle 31, which reliably fixes the pipe conveying high-pressure cleaning liquid, ensuring the structural stability and safety of the cleaning system under high-pressure working conditions; inside the vessel body 2, to improve the smooth operation of the stirring system, the bottom end of the stirring shaft 11 is rotatably connected... A fixing ring 17 is securely installed inside the lower side of the vessel body 2, serving as the bottom support point for the stirring shaft 11. This ring suppresses the radial sway that may occur when the stirring shaft 11 rotates at high speed, thus ensuring a more stable stirring process and reducing equipment wear. The water pump 29 is located on the left side of the water storage tank 26 and is fixedly installed on the upper rear side of the base 1. This not only provides a solid installation foundation for the operation of the water pump 29 but also shortens the pipeline connection distance between it and the water storage tank 26, optimizing the pipeline layout and improving the pumping efficiency.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chelation reactor for preparing fish protein fertilizer, comprising a base (1), characterized in that, A vessel body (2) is fixedly connected to the upper side of the base (1). A first mounting ring (3) is fixedly connected to the upper outer side of the vessel body (2). A second mounting ring (4) is connected to the first mounting ring (3) by bolts (5). A vessel lid (6) is fixedly connected inside the second mounting ring (4). A material conveying assembly is fixedly connected to the upper left side of the vessel lid (6). The material conveying assembly is used to convey fish protein fertilizer. A motor (10) is fixedly connected to the upper side of the vessel lid (6). The output end of the motor (10) is fixedly connected to the upper side of the vessel lid (6). A stirring shaft (11) is fixedly connected to the stirring shaft (11). Fixed sleeves (12) are fixedly connected to both sides of the stirring shaft (11). Fixed rods (13) are fixedly connected to the four corners of the fixed sleeves (12). A scraper (14) is fixedly connected to the opposite end of the fixed rods (13). The scraper (14) is slidably connected to the inner wall of the vessel body (2). Fixed plates (15) are fixedly connected to both sides of the stirring shaft (11). Stirring blades (16) are fixedly connected to the side of the two fixed plates (15) that are close to each other.

2. The chelation reactor for preparing fish protein fertilizer according to claim 1, characterized in that, The material conveying assembly includes a feed pipe (7), which is fixedly connected to the upper left side of the lid (6). A discharge pipe (8) is fixedly connected to the lower right side of the body (2). A control valve (34) is provided on the outside of both the feed pipe (7) and the discharge pipe (8). A control panel (9) is fixedly connected to the front side of the body (2).

3. The chelation reactor for preparing fish protein fertilizer according to claim 1, characterized in that, The vessel body (2) is fixedly connected to a fixed cavity (18) on the outside. Support plates (19) are fixedly connected to both sides of the fixed cavity (18). A uniformly distributed heating wire (20) is fixedly connected to the side of the support plate (19) that is close to each other. The heating wire (20) is set inside the fixed cavity (18). A vacuum pump (21) is fixedly connected to the upper left side of the base (1). A temperature control component is fixedly connected to the output end of the vacuum pump (21). The temperature control component is used to precisely control the reaction temperature and maintain it in the optimal temperature range of the chelation reaction.

4. The chelation reactor for preparing fish protein fertilizer according to claim 3, characterized in that, The temperature control component includes a gas supply pipe (22), which is fixedly connected to the output end of the air pump (21). A cooler (23) is fixedly connected to the rear end of the gas supply pipe (22), and a delivery pipe (24) is fixedly connected to the output end of the cooler (23). The delivery pipe (24) is fixedly connected to the left side of the inside of the fixed cavity (18).

5. The chelation reactor for preparing fish protein fertilizer according to claim 1, characterized in that, A water storage tank (26) is fixedly connected to the upper rear side of the base (1). A water inlet (27) is fixedly connected to the upper side of the water storage tank (26). A water pumping pipe (28) is fixedly connected to the left side of the water storage tank (26). The water pumping pipe (28) is fixedly connected to the input end of the water pump (29). A cleaning component is fixedly connected to the output end of the water pump (29). The cleaning component can effectively prevent cross-contamination during the production of fish protein fertilizer.

6. The chelation reactor for preparing fish protein fertilizer according to claim 5, characterized in that, The cleaning assembly includes a water supply pipe (30), which is fixedly connected to the output end of a water pump (29). A collection box (32) is fixedly connected to the front end of the water supply pipe (30). Evenly distributed nozzles (33) are fixedly connected inside the collection box (32). The collection box (32) is fixedly connected to the upper side of the inside of the vessel body (2).

7. The chelation reactor for preparing fish protein fertilizer according to claim 4, characterized in that, The external connection of the delivery pipe (24) is a first buckle (25), which is fixedly connected to the left side of the fixed cavity (18).

8. The chelation reactor for preparing fish protein fertilizer according to claim 6, characterized in that, The water pipe (30) is externally fixedly connected to a second buckle (31), which is fixedly connected to the rear side of the fixed cavity (18).

9. The chelation reactor for preparing fish protein fertilizer according to claim 1, characterized in that, The bottom end of the stirring shaft (11) is rotatably connected to a fixing ring (17), which is fixedly connected to the lower inside of the vessel body (2).

10. A chelation reactor for preparing fish protein fertilizer according to claim 5, characterized in that, The water pump (29) is located on the left side of the water storage tank (26) and is fixedly connected to the upper rear side of the base (1).

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