Ammonium nitrate solution concentration blending reaction kettle with explosion-proof function

Abstract

The utility model discloses an ammonium nitrate solution concentration blending reation kettle with anti -explosion function belongs to reation kettle equipment technical field, the utility model discloses a reation kettle body is communicated with the discharge valve at reation kettle body bottom, can carry out even heating to solution through the electric heating plate in the reation kettle body inner wall bottom groove, avoid local temperature too high and cause ammonium nitrate to decompose gas and cause explosion, the cooperation design of stirring rod and top motor can carry out sufficient stirring to ammonium nitrate solution in reation kettle, make solution concentration distribution even. The annular ring and the explosion -proof pipe fixedly connected with the annular ring that reation kettle body surface sets up up and down, effectively enhanced the overall structural strength of reation kettle, the gas outlet pipe of top annular ring and the gas inlet pipe of bottom annular ring mutually cooperate, and the outside cold gas enters the space between the explosion -proof pipe and reation kettle body, and then even cooling is carried out to reation kettle body, and then gas is discharged to the outside from the gas outlet pipe, and the device has the advantages that the explosion -proof effect is good.

Description

Technical Field

[0001] This utility model belongs to the technical field of reaction vessel equipment, specifically a reaction vessel for adjusting the concentration of ammonium nitrate solution with explosion-proof function. Background Technology

[0002] In chemical production processes, the concentration adjustment of ammonium nitrate solution is a crucial step. Ammonium nitrate, as an important chemical raw material, is widely used in fertilizers, explosives, and other fields. Adjusting the concentration of ammonium nitrate solution requires the use of a reaction vessel to complete the mixing and reaction of materials. However, ammonium nitrate possesses certain hazards and can easily explode under specific conditions (such as excessively high temperature, improper concentration, impact, or friction), placing extremely high demands on the safety of the reaction vessel.

[0003] Existing ammonium nitrate solution concentration mixing reactors have some shortcomings in terms of explosion-proof functionality. On the one hand, the explosion-proof structure of traditional reactors is relatively simple, usually relying solely on explosion-proof discs or safety valves to achieve the purpose of explosion prevention. However, these devices often only activate after an explosion hazard has already occurred and the internal pressure has reached a certain threshold, failing to provide early warning and intervention in the initial stage of explosion risk, thus exhibiting a certain degree of lag.

[0004] Furthermore, the design of the stirring device inside the reactor may also be flawed. Insufficient stirring can lead to uneven mixing of materials, excessively high local concentrations, and consequently, local overheating or abnormal reactions, increasing the likelihood of an explosion. Simultaneously, friction and static electricity generated during stirring can also trigger an explosion, but existing reactors often lack effective measures to prevent static electricity and eliminate frictional heat.

[0005] In summary, existing ammonium nitrate solution concentration mixing reactors suffer from problems such as untimely early warning and inadequate explosion-proof structures, failing to meet the high safety requirements of chemical production. Therefore, there is an urgent need to design an ammonium nitrate solution concentration mixing reactor with more comprehensive explosion-proof functions to improve the safety and reliability of the production process. Utility Model Content

[0006] To address the problems mentioned in the background section, the present invention aims to provide an ammonium nitrate solution concentration mixing reactor with explosion-proof function, which has the advantage of good explosion-proof effect.

[0007] This utility model provides the following technical solution: an ammonium nitrate solution concentration adjustment reactor with explosion-proof function, including a reactor body, a discharge valve connected to the bottom of the reactor body, a feed pipe connected to the top of the reactor body, a sealing cap threadedly connected to the surface of the feed pipe, a groove provided at the bottom of the inner wall of the reactor body, and an electric heating plate fixedly connected inside the groove, a stirring rod rotatably connected inside the reactor body, a motor fixedly connected to the top of the reactor body via a bracket, the output end of the motor fixedly connected to the stirring rod, and rings fixedly connected to the top and bottom of the surface of the reactor body, with explosion-proof pipes fixedly connected to the surface of the rings. An exhaust pipe is connected to the top of the top ring, and an inlet pipe is connected to the bottom of the bottom ring. A spiral frame is fixedly connected to the inner wall of the explosion-proof pipe, and the spiral frame is fixedly connected to the reactor body.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model employs a discharge valve at the bottom of the reactor body and a feed pipe and sealing cap at the top. This ensures the orderly entry and exit of materials and enhances the reactor's sealing performance through the threaded connection structure of the sealing cap, reducing safety hazards caused by external impurities entering or internal material leakage. The electric heating plate in the groove at the bottom of the reactor's inner wall can uniformly heat the solution, preventing localized overheating that could lead to the decomposition of ammonium nitrate and the generation of gas, which could cause an explosion. The coordinated design of the stirring rod and the top motor ensures thorough stirring of the ammonium nitrate solution within the reactor, resulting in a uniform concentration distribution and preventing abnormal reactions or overheating due to localized excessive concentrations. The circular rings and explosion-proof pipes fixedly connected to the upper and lower surfaces of the reactor body form a supporting structure surrounding the reactor body, effectively enhancing the overall structural strength of the reactor and enabling it to withstand higher internal pressures. The spiral frame inside the explosion-proof pipe is fixedly connected to the reactor body, dispersing the pressure on the reactor body through the spiral structure and reducing local stress concentration. The gas outlet pipe of the top ring and the gas inlet pipe of the bottom ring cooperate with each other, and the gas inlet pipe can be connected to an external cold air source. When it is necessary to cool the reactor body, external cold air enters the space between the explosion-proof pipe and the reactor body, and then moves upward along the spiral frame, thereby uniformly cooling the reactor body. Then the gas is discharged to the outside through the gas outlet pipe, which can be connected to a gas recovery device through a pipeline. The synergistic effect of the above structures improves the explosion-proof performance of the reactor from multiple dimensions such as temperature control, concentration uniformity, structural strength, and pressure regulation. Compared with the traditional explosion-proof design that relies solely on explosion-proof plates or safety valves with hysteresis, this structure can reduce the risk of explosion from the source and significantly improve the safety of the ammonium nitrate solution concentration preparation process. This device has the advantage of good explosion-proof effect.

[0010] 2. This utility model comprises an active pressure regulation and early warning structure consisting of a limiting block, rubber pad, movable frame, movable column, cone block, and compression spring installed inside the square tube. The vent hole on the limiting block provides a channel for gas discharge. The contact between the rubber pad and the cone block seals the vent hole. During normal operation, the spring force keeps the cone block tightly pressed against the rubber pad, ensuring the sealing of the reactor interior. When the pressure inside the reactor abnormally rises, the internal gas pushes the cone block upwards, compressing the compression spring and separating the cone block from the rubber pad. This opens the vent hole, allowing gas to escape and achieving timely pressure relief, preventing a continuous rise in pressure that could lead to an explosion. The sliding grooves on both sides of the inner wall of the square tube guide the sliding of the movable frame, ensuring stable movement of the movable column and cone block and preventing sealing failure or poor venting due to misalignment. The anti-rust paint sprayed on the surface of the compression spring effectively prevents corrosion from contact with humid gases or solution vapors, ensuring the stability and service life of the spring force, and thus ensuring the long-term reliable operation of the pressure regulation structure. This structure achieves pressure relief through the dynamic balance of mechanical force and gas pressure. Compared with the passive design of traditional explosion-proof discs that require a fixed pressure threshold to rupture, this structure can adjust in real time according to pressure changes, intervening at the initial stage of explosion risk, significantly improving the timeliness and effectiveness of explosion protection. At the same time, it is reusable, reducing maintenance costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a front sectional view of the insulation layer and explosion-proof pipe structure of this utility model.

[0013] Figure 3 This is a front cross-sectional view of the reactor body structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the reactor body structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the square tube, limiting block, and rubber pad structure of this utility model.

[0016] Figure 6 This is a schematic diagram of the limiting block and rubber pad structure of this utility model. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] like Figures 1 to 6As shown, the ammonium nitrate solution concentration adjustment reactor of this embodiment includes a reactor body 1. A discharge valve 3 is connected to the bottom of the reactor body 1, and a feed pipe 2 is connected to the top of the reactor body 1. A sealing cap is threaded onto the surface of the feed pipe 2. A groove is provided at the bottom of the inner wall of the reactor body 1, and an electric heating plate 6 is fixedly connected inside the groove. A stirring rod 4 is rotatably connected inside the reactor body 1. A motor 5 is fixedly connected to the top of the reactor body 1 via a bracket, and the output end of the motor 5 is fixedly connected to the stirring rod 4. Circular rings 7 are fixedly connected to the top and bottom of the surface of the reactor body 1. An explosion-proof pipe 8 is fixedly connected to the surface of the circular rings 7. A vent pipe 9 is connected to the top of the top circular ring 7, and a gas outlet pipe 9 is connected to the bottom of the bottom circular ring 7. An air inlet pipe is provided, and a spiral frame 10 is fixedly connected to the inner wall of the explosion-proof pipe 8. The spiral frame 10 is fixedly connected to the reactor body 1. Pressure detectors and temperature detectors are respectively installed on the inner wall of the reactor body 1 to detect the pressure and temperature inside the reactor body 1. A controller is installed on the outside of the reactor body 1. The controller is connected to the electrical appliances in the device to control the electrical appliances in the device. The pressure detector, temperature detector, controller, delivery pump and electric heating plate 6 mentioned above are all common existing technologies and are common knowledge to those skilled in the art. They will not be described in detail in this application. The pressure detector, temperature detector and controller mentioned above are not shown. The stirring rod 4 is spiral-shaped and the surface of the stirring rod 4 is provided with an antistatic coating.

[0019] refer to Figure 5 The top of the reactor body 1 is connected to a square tube 11. A limiting block 12 is fixedly connected to the inner wall of the square tube 11. An exhaust hole is opened on the top of the limiting block 12. A rubber pad 13 is fixedly connected to the top of the limiting block 12. Sliding grooves are provided on both sides of the inner wall of the square tube 11. A movable frame 14 is slidably connected inside the sliding groove. A movable column 15 is slidably connected inside the movable frame 14. A cone block 16 is fixedly connected to the bottom of the movable column 15. The cone block 16 fits against the rubber pad 13. A compression spring 17 is fixedly connected to the top of the cone block 16. The end of the compression spring 17 away from the cone block 16 is fixedly connected to the movable frame 14. The surface of the compression spring 17 is sprayed with anti-rust paint.

[0020] This embodiment utilizes a limiting block 12, rubber pad 13, movable frame 14, movable column 15, cone block 16, and compression spring 17 arranged within the square tube 11 to form an active pressure regulation and early warning structure. The vent hole on the limiting block 12 provides a channel for gas discharge. The contact between the rubber pad 13 and the cone block 16 seals the vent hole. During normal operation, the spring force of the compression spring 17 causes the cone block 16 to press tightly against the rubber pad 13, ensuring the sealing of the reactor interior. When the pressure inside the reactor abnormally increases, the internal gas pushes the cone block 16 upwards, compressing the compression spring 17 and separating the cone block 16 from the rubber pad 13. This opens the vent hole, allowing gas to escape and achieving timely pressure relief, preventing a continuous increase in pressure that could lead to an explosion. The sliding grooves on both sides of the inner wall of the square tube 11 provide guidance for the sliding of the movable frame 14, ensuring the stability of the movement direction of the movable column 15 and the cone block 16, and preventing sealing failure or poor venting due to misalignment. The anti-rust paint sprayed on the surface of the compression spring 17 effectively prevents it from rusting due to contact with humid gases or solution vapors, ensuring the stability and service life of the spring's elasticity, and thus ensuring the long-term reliable operation of the pressure regulating structure. This structure achieves pressure relief through the dynamic balance of mechanical force and gas pressure. Compared to the passive design of traditional explosion-proof discs that require a fixed pressure threshold to rupture, this structure can adjust in real time according to pressure changes, intervening at the initial stage of explosion risk, significantly improving the timeliness and effectiveness of explosion protection. It is also reusable, reducing maintenance costs.

[0021] refer to Figure 5 A pressure detection block 19 is fixedly connected to the top of the movable frame 14, and an electric cylinder 18 is fixedly connected to the right side of the square tube 11. The output end of the electric cylinder 18 is fixedly connected to the pressure detection block 19 through a connecting frame.

[0022] In this embodiment, a pressure monitoring and adjustment system is formed by the cooperation of the pressure detection block 19 on the top of the movable frame 14 and the electric cylinder 18 on the right side of the square tube 11. The pressure detection block 19 can sense the pressure on the movable frame 14 in real time, that is, the force transmitted from the gas pressure inside the reactor to the movable frame 14 through the cone block 16, and feed the pressure signal back to the controller. The output end of the electric cylinder 18 is connected to the pressure detection block 19 through the connecting frame, and can actively adjust the position of the movable frame 14 according to the signal fed back by the pressure detection block 19, thereby adjusting the initial compression of the compression spring 17 and changing the sealing pressure threshold between the cone block 16 and the rubber gasket 13. When the production process requires adjustment of the allowable pressure range inside the reactor, the electric cylinder 18 can push the movable frame 14 up or down to compress or release the compression spring 17, thereby flexibly setting the trigger pressure for pressure relief. When the pressure inside the reactor shows a slow upward trend, the electric cylinder 18 can gradually adjust the position of the movable frame 14 to make the pressure relief process smoother and avoid sudden pressure release from impacting the reactor structure. This structure upgrades the traditional passive explosion protection to an active, adjustable, and intelligent explosion protection system. It can not only adapt to the pressure control requirements under different production conditions, but also further improve the explosion protection reliability of the reactor during the ammonium nitrate solution concentration adjustment process through real-time monitoring and dynamic adjustment. It effectively solves the problem that the existing reactor explosion protection structure cannot flexibly intervene according to the actual working conditions.

[0023] refer to Figure 2 A heat-conducting block 22 is fixedly connected to the surface of the reactor body 1. There are several heat-conducting blocks 22, which are evenly distributed on the surface of the reactor body 1 and are distributed between the upper and lower rings 7.

[0024] This embodiment significantly improves the heat transfer efficiency and temperature uniformity of the reactor by using multiple heat-conducting blocks 22 evenly distributed on the surface of the reactor body 1. When cold air enters the space between the reactor body 1 and the explosion-proof pipe 8, the heat-conducting blocks 22 can increase the contact area between the reactor body 1 and the cold air, thereby increasing the heat dissipation rate of the cold air to the reactor body 1, and thus quickly cooling the reactor body 1 to prevent it from exploding due to excessive temperature.

[0025] refer to Figure 3 A scraper frame 20 is fixedly connected to the surface of the stirring rod 4, and the scraper frame 20 is in contact with the inner wall of the reaction vessel body 1.

[0026] In this embodiment, a scraper frame 20, fixedly connected to the surface of the stirring rod 4, adheres to the inner wall of the reactor body 1. During stirring, it effectively scrapes away residual ammonium nitrate solution adhering to the inner wall of the reactor. Ammonium nitrate solution has a certain viscosity. If there is too much residual material on the inner wall, it may lead to an increase in local concentration. Furthermore, the residual material is prone to crystallization due to water evaporation during heating, forming high-concentration ammonium nitrate solids. During stirring, friction or impact may trigger a local explosion. At the same time, the accumulation of residual material can also hinder heat transfer, leading to uneven solution temperature near the inner wall, further increasing the risk of explosion. The scraper frame 20 allows the stirring rod 4 to clean the inner wall simultaneously during rotation, keeping the inner wall clean and avoiding material residue. In addition, the close fit between the scraper frame 20 and the inner wall reduces the gap between the stirring rod 4 and the inner wall, enhancing the stirring effect, making the solution mix more evenly, and reducing the possibility of excessively high local concentrations. At the same time, the presence of the scraper frame 20 reduces the friction area between the solution and the inner wall during stirring, reducing the risk of static electricity generated by friction. Static sparks are one of the important causes of ammonium nitrate solution explosions. Therefore, the scraper frame 20 optimizes the operation of the reactor from multiple aspects, such as cleaning up material residues, improving the uniformity of stirring, and reducing static electricity, and significantly enhances its explosion-proof capability.

[0027] refer to Figure 1 A grounding wire 26 is fixedly connected to the bottom of the reactor body 1, and a plug rod 27 is fixedly connected to the end of the grounding wire 26 away from the reactor body 1.

[0028] This embodiment utilizes a grounding wire 26 and a plug 27 at the bottom of the reactor body 1 to create an effective electrostatic discharge structure. During the stirring process of the ammonium nitrate solution, friction between the solution and the stirring rod 4, as well as the inner wall of the reactor, generates static electricity. If this static electricity cannot be discharged in time, it may accumulate and form a high voltage. When electrostatic discharge generates a spark, it may ignite the ammonium nitrate solution or the flammable gas produced by its decomposition, leading to an explosion. One end of the grounding wire 26 is fixedly connected to the reactor body 1, and the other end is inserted into the ground through the plug 27. This allows the static electricity accumulated on the reactor body 1 to be directly conducted to the ground, preventing static electricity buildup. The design of the plug 27 increases the contact area between the grounding wire 26 and the ground, ensuring the effectiveness of static electricity discharge. Simultaneously, the grounding wire 26 does not affect the normal operation of the reactor, requires no additional energy input, and has low maintenance costs. Through this structure, the static electricity generated during the operation of the reactor can be discharged in time, effectively preventing explosions caused by electrostatic sparks and further improving the safety of the ammonium nitrate solution concentration preparation process.

[0029] refer to Figure 1 An insulation layer 21 is fixedly connected to the surface of the explosion-proof pipe 8.

[0030] In this embodiment, the insulation layer 21 fixedly connected to the surface of the explosion-proof pipe 8 effectively maintains the temperature stability of the explosion-proof pipe 8. The insulation layer 21 reduces heat exchange between the explosion-proof pipe 8 and the external environment, keeping the internal temperature of the explosion-proof pipe 8 relatively stable, thus ensuring a relatively stable temperature within the reactor body 1. The insulation layer 21 also reduces heat loss from the reactor through the explosion-proof pipe 8, improving heating efficiency and reducing energy consumption. Through the insulation layer 21, the structural stability and explosion-proof performance of the explosion-proof pipe 8 are effectively guaranteed, ensuring its continuous explosion-proof function during long-term operation and improving the overall reliability and safety of the reactor.

[0031] refer to Figure 1 The reactor body 1 is provided with four support columns 23 at the bottom. The top of the support column 23 is provided with a sliding groove, and a support frame 24 is slidably connected inside the sliding groove. The support frame 24 is fixedly connected to the reactor body 1. The surface of the support frame 24 is provided with slots, and the number of slots is several. The support column 23 is threaded with bolts 25, and the bolts 25 are inserted into the slots.

[0032] In this embodiment, an adjustable support structure is formed by the support column 23, sliding groove, support frame 24, slots, and bolts 25 below the reactor body 1. The sliding groove at the top of the support column 23 allows the support frame 24 to slide vertically. By adjusting the position of the support frame 24 within the sliding groove, the height of the reactor body 1 can be finely adjusted. Multiple slots on the surface of the support frame 24 engage with the bolts 25 within the support column 23 to fix the position of the support frame 24. Furthermore, by selecting different slots, the height of the reactor body 1 can be adjusted to accommodate different discharge equipment or operating space requirements. Fixing is achieved by inserting the bolts 25 into the slots, facilitating maintenance and significantly improving the installation flexibility and operational stability of the reactor, indirectly enhancing its explosion-proof performance.

[0033] The first step in this invention is to install and debug the device. Place the four support columns 23 below the reactor body 1 on a flat and stable surface. Adjust the height of the reactor body 1 using the support frame 24 in the sliding groove at the top of the support columns 23. According to the location of the discharge equipment or the required operating space, align the slots on the surface of the support frame 24 with the bolts 25 inside the support columns 23 and insert them. Tighten the bolts 25 to secure the support frame 24, ensuring the reactor body 1 is stable. Check the insulation layer 21 on the surface of the explosion-proof pipe 8 for integrity. Confirm that the insulation layer 21 is undamaged to ensure the temperature stability of the explosion-proof pipe 8 and reduce heat exchange between the reactor body 1 and the outside environment. Firmly insert the plug 27 at one end of the grounding wire 26 into the ground to ensure that static electricity in the reactor body 1 can be effectively discharged through the grounding wire 26, preventing static electricity accumulation and potential hazards.

[0034] After installation, perform pre-use checks and preparations. Open the sealing cover on top of reactor body 1 and clean the inside of reactor body 1 to ensure there is no material residue on the inner wall, which could affect the concentration adjustment. Check whether the scraper frame 20 on the surface of the stirring rod 4 is in close contact with the inner wall of reactor body 1. If there is any misalignment, adjust it to ensure that the scraper frame 20 can effectively scrape off the residual ammonium nitrate solution on the inner wall during stirring, preventing excessively high local concentrations and material crystallization. Confirm that the electric heating plate 6 is located in the groove at the bottom of the inner wall of reactor body 1 and is firmly fixed, that the screw frame 10 is tightly connected to reactor body 1, and that the exhaust pipe 9 of the top ring 7 and the inlet pipe of the bottom ring 7 are not blocked. The inlet pipe can be connected to an external cold air source as needed, and the exhaust pipe 9 is connected to a gas recovery device. Start the controller and check whether the pressure and temperature detectors are working properly, ensuring that they can monitor the pressure and temperature inside reactor body 1 in real time and feed them back to the controller.

[0035] When adding materials, ammonium nitrate solution and other required materials are injected into the reactor body 1 through the feed pipe 2. After the addition is complete, the sealing cap is tightened along the threads on the surface of the feed pipe 2 to ensure the sealing of the reactor body 1 and prevent external impurities from entering or internal materials from leaking. The motor 5 on the top support is started. The output end of the motor 5 drives the stirring rod 4 to rotate. The scraper frame 20 rotates synchronously with the stirring rod 4 to stir the materials in the reactor, so that the solution is mixed evenly and local concentration differences are reduced. According to the process requirements, the electric heating plate 6 is turned on by the controller. The electric heating plate 6 heats the solution at the bottom of the inner wall of the reactor body 1 evenly. During the heating process, if the temperature of the reactor body 1 needs to be adjusted by cooling, external cold air can be introduced through the air inlet pipe. The cold air enters the space between the explosion-proof pipe 8 and the reactor body 1, and spirals upward along the spiral frame 10 on the inner wall of the explosion-proof pipe 8, uniformly cooling the reactor body 1. The cooled gas is discharged into the gas recovery equipment through the air outlet pipe 9. At the same time, the heat-conducting blocks 22 evenly distributed on the surface of the reactor body 1 increase the contact area with the cold air, improve the heat dissipation efficiency, and ensure accurate temperature control.

[0036] During solution preparation, the pressure regulation system operates in real time to ensure safety. Under normal conditions, the cone 16 at the bottom of the movable frame 14 inside the square tube 11, under the elastic force of the compression spring 17, presses tightly against the rubber pad 13 at the top of the limiting block 12, sealing the vent hole on the limiting block 12 and maintaining the internal sealing of the reactor body 1. When the pressure inside the reactor body 1 rises abnormally, the gas pressure pushes the cone 16 upward, compressing the compression spring 17. The cone 16 separates from the rubber pad 13, the vent hole opens, and the internal gas is discharged through the vent hole to relieve pressure. At the same time, the pressure detection block 19 at the top of the movable frame 14 feeds back the pressure signal to the controller. The controller controls the electric cylinder 18 on the right side of the square tube 11 according to preset parameters. The electric cylinder 18 pushes the pressure detection block 19 and the movable frame 14 up and down through the connecting frame, adjusting the initial compression of the compression spring 17, thereby flexibly setting the trigger pressure for pressure relief, realizing dynamic regulation of the pressure inside the reactor, and avoiding sudden pressure release from impacting the equipment.

[0037] Once the solution temperature and pressure stabilize within the process requirements, continue stirring for a period of time to ensure uniform ammonium nitrate solution concentration. During stirring, the scraper frame 20 continuously cleans the inner wall of the reactor body 1 to prevent material residue accumulation that could lead to localized concentration increases and hinder heat transfer. It also reduces static electricity generated during stirring, which, combined with the static discharge effect of the grounding wire 26, further reduces the risk of explosion. After the concentration is adjusted, turn off the motor 5 and the electric heating plate 6 to stop stirring and heating. If the temperature of the reactor body 1 is too high, continue to introduce cold air through the air inlet pipe to cool it down until the temperature drops to a safe range.

[0038] Finally, perform the discharge operation by opening the discharge valve 3 at the bottom of reactor body 1 to discharge the prepared ammonium nitrate solution into subsequent equipment. After discharge, reopen the sealing cover and thoroughly clean the inside of reactor body 1, checking all components for wear or abnormalities. For example, check if the anti-rust paint on the surface of the compression spring 17 is intact, and whether the explosion-proof pipe 8, screw frame 10, and heat-conducting block 22 are damaged. Ensure the equipment is in good condition and ready for the next use. Throughout the entire operation, closely monitor the pressure and temperature data displayed on the controller, strictly follow the process procedures, and ensure the safe and efficient preparation of the ammonium nitrate solution concentration. Fully utilize the explosion-proof advantages of the equipment in temperature control, pressure regulation, static electricity removal, and material stirring to ensure the safety and reliability of chemical production.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ammonium nitrate solution concentration adjustment reaction kettle with explosion-proof function, comprising a reaction kettle body (1), characterized in that: The bottom of the reactor body (1) is connected to a discharge valve (3), the top of the reactor body (1) is connected to a feed pipe (2), the surface of the feed pipe (2) is threaded with a sealing cap, the bottom of the inner wall of the reactor body (1) is provided with a groove, and an electric heating plate (6) is fixedly connected inside the groove, a stirring rod (4) is rotatably connected inside the reactor body (1), the top of the reactor body (1) is fixedly connected to a motor (5) by a bracket, the output end of the motor (5) is fixedly connected to the stirring rod (4), the top and bottom of the surface of the reactor body (1) are both fixedly connected to a ring (7), the surface of the ring (7) is fixedly connected to an explosion-proof pipe (8), the top of the top ring (7) is connected to an air outlet pipe (9), the bottom of the bottom ring (7) is connected to an air inlet pipe, the inner wall of the explosion-proof pipe (8) is fixedly connected to a spiral frame (10), and the spiral frame (10) is fixedly connected to the reactor body (1).

2. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 1, characterized in that: The top of the reactor body (1) is connected to a square tube (11). A limiting block (12) is fixedly connected to the inner wall of the square tube (11). An exhaust hole is opened on the top of the limiting block (12). A rubber pad (13) is fixedly connected to the top of the limiting block (12). Sliding grooves are provided on both sides of the inner wall of the square tube (11). A movable frame (14) is slidably connected inside the sliding groove. A movable column (15) is slidably connected inside the movable frame (14). A cone block (16) is fixedly connected to the bottom of the movable column (15). The cone block (16) is in contact with the rubber pad (13). A compression spring (17) is fixedly connected to the top of the cone block (16). The end of the compression spring (17) away from the cone block (16) is fixedly connected to the movable frame (14). The surface of the compression spring (17) is sprayed with anti-rust paint.

3. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 2, characterized in that: A pressure detection block (19) is fixedly connected to the top of the movable frame (14), and an electric cylinder (18) is fixedly connected to the right side of the square tube (11). The output end of the electric cylinder (18) is fixedly connected to the pressure detection block (19) through a connecting frame.

4. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 3, characterized in that: The surface of the reactor body (1) is fixedly connected with heat-conducting blocks (22). There are several heat-conducting blocks (22). The heat-conducting blocks (22) are evenly distributed on the surface of the reactor body (1) and are distributed between the upper and lower rings (7).

5. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 4, characterized in that: The surface of the stirring rod (4) is fixedly connected to a scraper frame (20), and the scraper frame (20) is in contact with the inner wall of the reactor body (1).

6. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 5, characterized in that: The bottom of the reactor body (1) is fixedly connected to a grounding wire (26), and the end of the grounding wire (26) away from the reactor body (1) is fixedly connected to a plug (27).

7. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 6, characterized in that: The surface of the explosion-proof pipe (8) is fixedly connected with an insulation layer (21).

8. The ammonium nitrate solution concentration adjustment reactor with explosion-proof function according to claim 7, characterized in that: The reactor body (1) is provided with a support column (23) below it. There are four support columns (23). The top of the support column (23) is provided with a sliding groove, and a support frame (24) is slidably connected inside the sliding groove. The support frame (24) is fixedly connected to the reactor body (1). The surface of the support frame (24) is provided with a slot, and there are several slots. The support column (23) is threaded with a bolt (25), and the bolt (25) is inserted into the slot.

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