Urea hydrolysis ammonia preparation reaction device

Abstract

The utility model relates to the technical field of ammonia production equipment, in particular to a urea hydrolysis ammonia production reaction device which comprises a main reaction tank, and the top end of the main reaction tank is fixedly connected with a disassembly and assembly connecting piece; firstly, a tank body is conveniently disassembled and cleaned through an assembling structure of a main reaction tank, a disassembling and assembling connecting piece and an upper half reaction tank which are convenient to disassemble, and in the process of preparing ammonia through urea hydrolysis, a driving motor assembled at the top end of a top cover is guided to operate to drive a stirring rod to rotate and stir an internal urea solution; meanwhile, the extension bracket drives the leak plate to stir in the main reaction tank along with the rotation of the stirring rod, and the contact area and time of urea and hot steam during hydrolysis are accelerated through the through holes formed in the leak plate.

Description

Technical Field

[0001] This utility model relates to the field of ammonia production equipment technology, specifically to a urea hydrolysis ammonia production reaction device. Background Technology

[0002] Currently, the typical steps for urea hydrolysis to ammonia production are as follows: a urea solution with a concentration of approximately 40% to 60% is fed into the hydrolysis reactor; heating steam enters the reactor through a coil and is not mixed with the urea solution. The heating steam is then returned through the coil, and the condensate is recovered to the condensate tank. This ammonia-containing gas stream first enters the metering module, then is mixed with heated dilution air, and finally enters the SCR reactor for reaction to remove NOx from the flue gas.

[0003] Publication No. CN222427988U discloses a urea hydrolysis ammonia production reactor. This reactor effectively stirs the urea solution during heating, thereby improving the heating efficiency of the urea solution by steam and thus increasing the efficiency of urea hydrolysis for ammonia production. However, during operation, this reactor uses heat conduction to transfer the water temperature from the circulating hot water pipe to the reaction chamber, accompanied by stirring to improve heating efficiency. However, this reactor only accelerates the heat transfer efficiency of the circulating pipe through stirring; its urea hydrolysis efficiency is not improved. Therefore, we propose a urea hydrolysis ammonia production reactor. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a urea hydrolysis ammonia production reaction device.

[0005] The technical solution adopted by this utility model to solve its technical problem is a urea hydrolysis ammonia production reaction device, including a main reaction tank. The top of the main reaction tank is fixedly connected to a detachable connector. The top of the detachable connector is detachably installed with an upper half reaction tank identical to the main reaction tank. The top of the upper half reaction tank is detachably installed with a guide top cover. A drive motor is installed at the center of the top of the guide top cover. A stirring rod is installed at the power output end of the drive motor.

[0006] A processing base is fixedly connected to the bottom of the main reaction vessel. A pressurizer is installed inside the processing base. A hot steam connection port is opened on one side of the processing base. A steam inlet pipe is installed through the hot steam connection port and is installed at the feed port of the pressurizer. A guide jet chamber is installed at the end of the pressurizer away from the steam inlet pipe. A jet pipe is installed at the top of the guide jet chamber and is installed inside the main reaction vessel.

[0007] By adopting the above technical solution, the tank body can be easily disassembled and cleaned by the easy-to-disassemble main reaction tank, disassembly and assembly parts and upper half reaction tank assembly structure. During the process of urea hydrolysis to produce ammonia, the drive motor installed at the top of the guide cover drives the stirring rod to rotate and stir the urea solution inside. At the same time, the extension bracket drives the perforated plate to stir inside the main reaction tank as the stirring rod rotates. The through holes opened in the perforated plate accelerate the contact area and time between urea and hot steam during hydrolysis.

[0008] During the heating process, a steam inlet pipe is inserted into the hot steam connection port to connect to the side wall of the pressurizer. The steam is then pressurized by the pressurizer and fed into the guide jet chamber. The steam is then ejected from the guide jet chamber to the jet pipeline and enters the solution in the main reaction tank.

[0009] Specifically, an extension bracket is fixedly connected to the outer periphery of the bottom end of the stirring rod, and a perforated plate is fitted to the bottom end of the extension bracket.

[0010] By adopting the above technical solution, the perforated plate installed on the extended support is used to stir the urea solution and the hot steam input from the bottom as the stirring rod rotates, thereby increasing the contact area between the hot steam and the urea solution, and at the same time, it can also be used in conjunction with the stirring rod to stir the urea decomposition solution.

[0011] Specifically, a guide exhaust port is installed through the bottom end of the guide top cover, and an air supply pipe is fitted at the top end of the guide exhaust port.

[0012] By adopting the above technical solution, the decomposed ammonia gas is guided through the exhaust port and fed into the gas pipeline to be discharged outside the tank.

[0013] Specifically, a urea input pipe is connected through the side wall of the upper reaction vessel.

[0014] By adopting the above technical solution, urea solution is injected into the device through the urea input pipe.

[0015] Specifically, sealing gaskets are provided at the connection points of the main reaction tank, the disassembly connector, and the upper half of the reaction tank, as well as at the bottom end of the jet pipe that passes through the main reaction tank.

[0016] By adopting the above technical solution, gaskets are used to seal all connections of the reaction device to prevent gas or liquid leakage.

[0017] Specifically, the bottom of the main reaction tank is provided with a drain outlet, and a drain pipe is connected through the bottom of the drain outlet.

[0018] By adopting the above technical solution, after the reaction is completed, the waste liquid is discharged from the tank through the drainage pipe by opening the drain outlet.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The technical solution of this application firstly facilitates the disassembly and cleaning of the tank by using a main reaction tank, disassembly and assembly connectors and an upper half reaction tank assembly structure. During the process of urea hydrolysis to produce ammonia, the drive motor mounted on the top of the guide cover drives the stirring rod to rotate and stir the urea solution inside. At the same time, the extension bracket drives the perforated plate to stir inside the main reaction tank as the stirring rod rotates. The through holes opened in the perforated plate accelerate the contact area and time between urea and hot steam during hydrolysis.

[0021] In the heating process of this application, a steam inlet pipe is inserted into a hot steam connection port to connect to the side wall of the pressurizer. The steam is then pressurized by the pressurizer and input into the guide jet chamber. The steam is then ejected from the guide jet chamber to the jet pipeline and enters the solution in the main reaction tank. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is an isometric view of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall planar structure of the equipment of this utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure at the processing base of this utility model;

[0026] In the diagram: 1. Main reaction vessel; 2. Disassembly and assembly connector; 3. Upper half of the reaction vessel; 4. Guide top cover; 5. Drive motor; 6. Stirring rod; 7. Extension bracket; 8. Leakage plate; 9. Guide exhaust port; 10. Gas supply pipeline; 11. Urea input pipe; 12. Machining base; 13. Hot steam connection port; 14. Steam inlet pipe; 15. Compressor; 16. Guide jet chamber; 17. Jet pipeline. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Please see Figure 1-3This utility model provides a technical solution: a urea hydrolysis ammonia production reaction device, including a main reaction tank 1, a detachable connector 2 fixedly connected to the top of the main reaction tank 1, an upper half reaction tank 3 identical to the main reaction tank 1 detachably installed at the top of the detachable connector 2, a guide top cover 4 detachably installed at the top of the upper half reaction tank 3, a drive motor 5 assembled at the center of the top of the guide top cover 4, and a stirring rod 6 assembled at the power output end of the drive motor 5.

[0029] A processing base 12 is fixedly connected to the bottom of the main reaction tank 1. A pressurizer 15 is installed inside the processing base 12. A hot steam connection port 13 is opened on one side of the processing base 12. A steam inlet pipe 14 is installed through the hot steam connection port 13 and is installed at the feed port of the pressurizer 15. A guide jet chamber 16 is installed at the end of the pressurizer 15 away from the steam inlet pipe 14. A jet pipe 17 is installed at the top of the guide jet chamber 16 and is installed inside the main reaction tank 1.

[0030] In use, the tank body is easily disassembled and cleaned by the assembly structure of the main reaction tank 1, the disassembly and assembly connector 2 and the upper half reaction tank 3. During the process of urea hydrolysis to produce ammonia, the drive motor 5 mounted on the top of the guide cover 4 drives the stirring rod 6 to rotate and stir the urea solution inside. At the same time, the extension bracket 7 drives the perforated plate 8 to stir inside the main reaction tank 1 as the stirring rod 6 rotates. The through holes opened in the perforated plate 8 accelerate the contact area and time between urea and hot steam during hydrolysis.

[0031] During the heating process, the steam inlet pipe 14 is inserted into the hot steam connection port 13 to connect to the side wall of the pressurizer 15, so that the steam is pressurized by the pressurizer 15 and input into the guide jet chamber 16. The steam is then ejected from the guide jet chamber 16 to the jet pipe 17 and enters the solution in the main reaction tank 1.

[0032] As shown in the figure, an extension bracket 7 is fixedly connected to the outer periphery of the bottom end of the stirring rod 6, and a perforated plate 8 is assembled at the bottom end of the extension bracket 7.

[0033] During use, the perforated plate 8 installed on the extension bracket 7 stirs the urea solution and the hot steam input from the bottom as the stirring rod 6 rotates, thereby increasing the contact area between the hot steam and the urea solution. At the same time, it can also work with the stirring rod 6 to stir the urea decomposition solution.

[0034] As shown in the figure, a guide exhaust port 9 is installed through the bottom of the guide top cover 4, and an air supply pipe 10 is installed at the top of the guide exhaust port 9.

[0035] During use, the decomposed ammonia gas is guided through the exhaust port 9 and fed into the gas pipeline 10 to be discharged outside the tank.

[0036] As shown in the figure, a urea input pipe 11 is connected through the side wall of the upper half of the reaction vessel 3.

[0037] During use, urea solution is injected into the device through the urea inlet pipe 11.

[0038] As shown in the figure, sealing gaskets are provided at the connection points of the main reaction tank 1, the disassembly connector 2 and the upper half reaction tank 3, as well as at the bottom end of the jet pipe 17 that passes through the main reaction tank 1.

[0039] During use, sealing gaskets are used to seal all connections of the reaction apparatus to prevent gas or liquid leakage.

[0040] As shown in the figure, a drain outlet 18 is provided at the bottom of the main reaction tank 1, and a drain pipe 19 is connected through the bottom of the drain outlet 18.

[0041] During use, after the reaction is complete, the waste liquid is discharged from the tank through the drain pipe 19 by opening the drain outlet 18.

[0042] The working principle and usage process of this utility model are as follows: A processing base 12 is fixedly connected to the bottom of the main reaction tank 1. A pressurizer 15 is installed inside the processing base 12. A hot steam connection port 13 is opened on one side of the processing base 12. A steam inlet pipe 14 is installed through the hot steam connection port 13 and is installed at the feed port of the pressurizer 15. A guide jet chamber 16 is installed at the end of the pressurizer 15 away from the steam inlet pipe 14. A jet pipe 17 is installed at the top of the guide jet chamber 16 and is installed inside the main reaction tank 1. In use, the tank body is easily disassembled and cleaned by the assembly structure of the main reaction tank 1, the disassembly and assembly connector 2, and the upper half of the reaction tank 3. During the process of urea hydrolysis to produce ammonia, the drive motor 5 installed at the top of the guide top cover 4 drives the stirring rod 6 to rotate and stir the internal components. The urea solution in the main reaction tank 1 is stirred by the rotation of the stirring rod 6 via the extension bracket 7, which in turn drives the perforated plate 8 to agitate the urea solution. The perforations in the perforated plate 8 accelerate the contact area and time between the urea hydrolysis and the hot steam. The perforated plate 8 installed on the extension bracket 7 agitates the urea solution and the hot steam input from the bottom via the rotation of the stirring rod 6, thereby increasing the contact area between the hot steam and the urea solution. It also works with the stirring rod 6 to agitate the urea decomposition solution. The decomposed ammonia gas is guided through the exhaust port 9 and input into the gas pipeline 10 to be discharged outside the tank. The urea solution is injected into the device through the urea input pipe 11. Sealing gaskets are used to seal all connections of the reaction device to prevent gas or liquid leakage. After the reaction is completed, the waste liquid is discharged from the tank through the drain pipe 19 by opening the drain port 18.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A urea hydrolysis ammonia production reactor, characterized in that, The system includes a main reaction tank (1), the top of which is fixedly connected to a detachable connector (2), the top of which is detachably mounted with an upper half reaction tank (3) identical to the main reaction tank (1), the top of which is detachably mounted with a guide top cover (4), the top of which is centrally mounted with a drive motor (5), and the power output end of the drive motor (5) is equipped with a stirring rod (6). The bottom of the main reaction tank (1) is fixedly connected to a processing base (12). A pressurizer (15) is installed inside the processing base (12). A hot steam connection port (13) is opened on one side of the processing base (12). A steam inlet pipe (14) is installed through the hot steam connection port (13). The steam inlet pipe (14) is installed at the feed port of the pressurizer (15). A guide jet chamber (16) is installed at the end of the pressurizer (15) away from the steam inlet pipe (14). A jet pipe (17) is installed at the top of the guide jet chamber (16). The jet pipe (17) is installed inside the main reaction tank (1).

2. The urea hydrolysis ammonia production apparatus according to claim 1, characterized in that, An extension bracket (7) is fixedly connected to the outer periphery of the bottom end of the stirring rod (6), and a perforated plate (8) is fitted to the bottom end of the extension bracket (7).

3. The urea hydrolysis ammonia production apparatus according to claim 1, characterized in that, The bottom end of the guide cover (4) is provided with a guide exhaust port (9), and the top end of the guide exhaust port (9) is provided with a gas transmission pipe (10).

4. The urea hydrolysis ammonia production apparatus according to claim 1, characterized in that, The upper half of the reaction vessel (3) is connected to a urea input pipe (11) through the side wall.

5. The urea hydrolysis ammonia production apparatus according to claim 1, characterized in that, Sealing gaskets are provided at the connection points of the main reaction tank (1), the disassembly connector (2), and the upper half reaction tank (3), as well as at the bottom end of the jet pipe (17) that runs through the main reaction tank (1).

6. The urea hydrolysis ammonia production apparatus according to claim 1, characterized in that, The bottom of the main reaction vessel (1) is provided with a drain outlet (18), and a drain pipe (19) is connected through the bottom of the drain outlet (18).

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