Sulfamic acid reaction kettle with temperature monitoring function

Abstract

The sulfamic acid reaction kettle with the temperature monitoring function comprises a kettle body, a plurality of annular filter plates are fixed at the bottom of the kettle body, the diameters of the annular filter plates are different, and the axes of the annular filter plates coincide with the axis of the kettle body. When the material collecting disc rotates, urea overflows from the first through holes due to centrifugal force, the overflowed urea flows to the conical barrel, when the urea rolls downwards on the conical barrel, the urea falls down from the different second through holes and then falls into different gaps formed by the multiple annular filter plates, and when the rotating shaft rotates, the first stirring paddle and the second stirring paddle are further driven to rotate, so that the urea flows into the conical barrel through the first stirring paddle and the second stirring paddle. The stirring paddle I and the stirring paddle II are used for stirring uremia and fuming sulphuric acid in each gap and the annular filter plate with the smallest diameter, and the interior of the kettle body is divided into a plurality of gaps by the annular filter plates, so that urea is prevented from being gathered together due to the centrifugal force of stirring, and the urea and the fuming sulphuric acid can better react.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to an aminosulfonic acid reaction vessel with temperature monitoring. Background Technology

[0002] Currently, reaction vessels are a type of comprehensive reaction container, and their structure, function, and accessories are designed according to the reaction conditions. Aminosulfonic acid is produced by slowly adding a measured amount of urea to a specific concentration and volume of fuming sulfuric acid, where a sulfonation reaction occurs at 40℃-70℃.

[0003] Publication No. CN 211913789 U discloses a reaction vessel for preparing aminosulfonic acid. The upper and lower ends of the feeding hopper are respectively provided with a feed port and a discharge port I. The discharge port I is connected to the feed end, and the discharge end is connected to the solid feed port. The feeding speed of urea can be controlled by a screw conveyor.

[0004] The prior art, as mentioned in the background section, states that existing feed hoppers cannot control the urea feed rate. Excessive urea feed rate leads to a continuous increase in temperature within the reactor, resulting in a low reaction rate between urea and fuming sulfuric acid. Currently, urea is typically injected directly into the reactor, thus resolving the aforementioned technical problem. The aforementioned technology uses a screw conveyor to gradually increase the urea, avoiding the problem of excessive urea injection causing a continuous temperature increase. Furthermore, injecting too much urea at once causes urea to accumulate inside the reactor, also affecting the reaction. However, the prior art still has the following problems: when urea is added to the reactor, the reaction is mainly achieved by stirring the urea and fuming sulfuric acid with a stirring paddle. However, when solid urea is stirred in liquid fuming sulfuric acid, centrifugal force causes the urea to collectively flow towards the edge of the stirring vortex, resulting in uneven urea distribution and affecting the reaction between urea and fuming sulfuric acid. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] In view of this, the purpose of this utility model is to propose an aminosulfonic acid reactor with temperature monitoring. The technical problem to be solved is that when urea is added into the reactor, the urea and fuming sulfuric acid are mainly stirred by the stirring paddle in the reactor to make them react. However, when solid urea is stirred in liquid fuming sulfuric acid, due to the presence of centrifugal force, the urea will collectively flow to the edge of the stirring vortex, making the urea distribution uniform and affecting the reaction between urea and fuming sulfuric acid.

[0007] (II) Technical Solution

[0008] To achieve the above technical objectives, this utility model provides an aminosulfonic acid reaction vessel with temperature monitoring:

[0009] It includes a vessel body, with multiple annular filter plates fixed to the bottom of the vessel body. The diameters of the multiple annular filter plates are different, and the axes of the multiple annular filter plates coincide with the axis of the vessel body. There are gaps between the inner wall of the vessel body and the annular filter plate with the largest diameter, as well as between adjacent annular filter plates. A rotating shaft is rotatably connected inside the vessel body. A motor is installed on the top of the vessel body. The output end of the motor is fixed to one end of the rotating shaft. Two crossbars are fixed to the outside of the rotating shaft. Multiple connecting rods are fixed to the bottom of the crossbars. A stirring paddle is fixed to the bottom of the connecting rods. The stirring paddle 1 rotates and fits into the corresponding gap. Two stirring paddles 2 are fixed to the outside of the rotating shaft. The stirring paddles 2 rotate inside the annular filter plate with the smallest diameter.

[0010] Preferably, the middle part of the vessel is fixed and connected to an inlet pipe and an outlet pipe, the bottom of the vessel is fixed and connected to a discharge pipe, a temperature sensor is also installed at the bottom of the vessel, a heating block is installed on the inner wall of the vessel, a control panel is installed on the vessel, the output end of the temperature sensor is connected to the input end of the control panel, and the input end of the heating block is connected to the output end of the control panel.

[0011] Preferably, a feeding pipe is fixed to the top of the vessel body, a material cylinder is fixed to and connected to the top of the feeding pipe, and a baffle is fixed to the bottom of the feeding pipe, with a plurality of round holes evenly spaced inside the baffle.

[0012] Preferably, a column is rotatably connected to the bottom of the first baffle, and a second baffle is fixed to the outside of the column. The second baffle and the first baffle are in contact with each other, and the second baffle has a plurality of round holes corresponding to the first round hole.

[0013] Preferably, a driven wheel is fixed to the outer side of the second baffle, and a driving wheel is fixed to the outer side of the rotating shaft. The driven wheel and the driving wheel are driven by a belt.

[0014] Preferably, a material collection tray is fixed to the outside of the rotating shaft, the material collection tray is located below the feeding pipe, a surrounding plate is fixed to the top edge of the material collection tray, and a plurality of through holes are opened in the surrounding plate.

[0015] Preferably, a conical cylinder is fixed to the inner wall of the reactor, the conical cylinder is located below the collecting plate, and multiple through holes are opened inside the conical cylinder. The vertical cross-sectional diameter of the conical cylinder gradually decreases from top to bottom.

[0016] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0017] 1. When urea falls onto the collection tray, the rotating shaft drives the collection tray to rotate. As the collection tray rotates, the urea overflows from through-hole one due to centrifugal force. The overflowing urea flows onto the conical cylinder. As the urea rolls down the conical cylinder, it falls from different through-holes two and into different gaps formed by multiple annular filter plates. The rotating shaft also drives stirring paddle one and stirring paddle two to stir the urea and fuming sulfuric acid in each gap and in the smallest diameter annular filter plate. Because multiple annular filter plates divide the inside of the vessel into multiple gaps, the urea is prevented from gathering together due to the centrifugal force of stirring, allowing the urea and fuming sulfuric acid to react better.

[0018] 2. Start the motor to drive the rotating shaft and drive wheel to rotate. When the drive wheel rotates, it drives the annular filter plate and baffle plate 2 to rotate via the belt. When baffle plate 2 rotates, when the second round hole and the first round hole coincide, urea will fall from the first round hole and the second round hole onto the collection tray. When the second round hole and the first round hole are misaligned, the urea delivery stops. Therefore, as baffle plate 2 rotates continuously, the urea is delivered in an orderly and intermittent manner. The existing method of injecting all the urea at once not only causes the temperature to rise too quickly, affecting the reaction, but also causes the urea to accumulate in the reactor, which is not conducive to the reaction between urea and fuming sulfuric acid. This device delivers urea in an orderly and intermittent manner, avoiding the problems caused by injecting too much urea at once. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of an aminosulfonic acid reactor with temperature monitoring provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the vessel body provided by this utility model;

[0022] Figure 3 Provided by this utility model Figure 2 Another perspective diagram of the structure;

[0023] Figure 4 Provided by this utility model Figure 3 Schematic diagram of the structure at point A;

[0024] Figure 5 This is a schematic diagram showing the disassembled structure of baffle one and baffle two provided by this utility model.

[0025] Figure Descriptions: 1. Kettle body; 2. Annular filter plate; 3. Gap; 4. Rotating shaft; 5. Motor; 6. Crossbar; 7. Connecting rod; 8. Agitator 1; 9. Agitator 2; 10. Liquid inlet pipe; 11. Exhaust pipe; 12. Discharge pipe; 13. Temperature sensor; 14. Heating block; 15. Material cylinder; 16. Discharge pipe; 17. Baffle 1; 18. Circular hole 1; 19. Column; 20. Baffle 2; 21. Circular hole 2; 22. Driven wheel; 23. Driven wheel; 24. Belt; 25. Collection tray; 26. Surrounding plate; 27. Through hole 1; 28. Conical cylinder; 29. ​​Through hole 2; 30. Control panel. Detailed Implementation

[0026] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0027] Reference Figure 1-5 :

[0028] In one embodiment of this utility model, an aminosulfonic acid reactor with temperature monitoring is provided, comprising a reactor body 1, with multiple annular filter plates 2 fixed at the bottom of the reactor body 1. The annular filter plates 2 have different diameters and their axes coincide with the axis of the reactor body 1. There are gaps 3 between the inner wall of the reactor body 1 and the annular filter plate 2 with the largest diameter, as well as between adjacent annular filter plates 2. A rotating shaft 4 is rotatably connected inside the reactor body 1. A motor 5 is installed on the top of the reactor body 1. The output end of the motor 5 is fixed to one end of the rotating shaft 4. Two crossbars 6 are fixed to the outside of the rotating shaft 4. Multiple connecting rods 7 are fixed to the bottom of the crossbars 6. A stirring paddle 8 is fixed to the bottom of the connecting rods 7. The stirring paddle 8 rotatably fits into the corresponding gap 3. Two stirring paddles 9 are fixed to the outside of the rotating shaft 4. The stirring paddles 9 rotate inside the annular filter plate 2 with the smallest diameter.

[0029] The vessel body 1 has an inlet pipe 10 and an exhaust pipe 11 fixed and connected in the middle. The bottom of the vessel body 1 has a discharge pipe 12 fixed and connected. The top of the vessel body 1 has a feed pipe 16 fixed and connected to a material cylinder 15. The bottom of the feed pipe 16 has a baffle 17 fixed. Multiple round holes 18 are equally spaced inside the baffle 17. The bottom of the baffle 17 is rotatably connected to a column 19. A baffle 20 is fixed to the outside of the column 19. The baffle 20 and the baffle 17 are in contact. Multiple round holes 21 corresponding to the round holes 18 are opened inside the baffle 20. A driven wheel 22 is fixed to the outside of the baffle 20. A driving wheel 23 is fixed to the outside of the rotating shaft 4. The driven wheel 22 and the driving wheel 23 are driven by a belt 24.

[0030] In use, fuming sulfuric acid is injected into the vessel body 1 through the inlet pipe 10, and urea is poured into the material cylinder 15. Then, the motor 5 is started to drive the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the driving wheel 23 to rotate. When the driving wheel 23 rotates, it drives the driven wheel 22 to rotate through the belt 24. When the driven wheel 22 rotates, it drives the baffle 20 to rotate. When the baffle 20 rotates, when the second round hole 21 and the first round hole 18 coincide, the urea will fall from the first round hole 18 and the second round hole 21. When the second round hole 21 and the first round hole 18 coincide, the urea will fall from the second round hole 18 and the second round hole 21. When the flow is staggered, the urea supply stops. When the second round hole 21 and the first round hole 18 coincide, the urea supply continues. When the second baffle 20 rotates, the urea is supplied in an orderly and intermittent manner. The existing method of injecting all the urea at once not only causes the temperature to rise too quickly, affecting the reaction, but also causes the urea to accumulate in the reactor, which is not conducive to the reaction between urea and fuming sulfuric acid. This device supplies urea in an orderly and intermittent manner, avoiding the problems caused by injecting too much urea at once.

[0031] In addition, a material collection plate 25 is fixed on the outside of the rotating shaft 4. The material collection plate 25 is located below the feed pipe 16. A surrounding plate 26 is fixed on the top edge of the material collection plate 25. Multiple through holes 27 are opened in the surrounding plate 26. A conical cylinder 28 is fixed on the inner wall of the vessel body 1. The conical cylinder 28 is located below the material collection plate 25. Multiple through holes 29 are opened in the conical cylinder 28. The vertical cross-sectional diameter of the conical cylinder 28 gradually decreases from top to bottom.

[0032] In use, when urea falls from the first round hole 18 and the second round hole 21, it falls onto the collection plate 25. The rotation of the rotating shaft 4 will drive the collection plate 25 to rotate. When the collection plate 25 rotates, the urea will overflow from the first through hole 27 due to centrifugal force. The overflowing urea flows onto the conical cylinder 28. When the urea rolls down on the conical cylinder 28, it will fall from different through holes 29 and into different gaps 3 formed by multiple annular filter plates 2. When the rotating shaft 4 rotates, it also drives the crossbar 6, connecting rod 7, stirring paddle 1 8, and stirring paddle 2 9 to rotate, so that stirring paddle 1 8 and stirring paddle 2 9 can stir the urea and fuming sulfuric acid in each gap 3 and in the smallest diameter annular filter plate 2. Since multiple annular filter plates 2 divide the inside of the vessel body 1 into multiple gaps 3, the urea is prevented from gathering together due to the centrifugal force of stirring, so that the urea and fuming sulfuric acid can react better.

[0033] In addition, a temperature sensor 13 is installed at the bottom of the vessel body 1, a heating block 14 is installed on the inner wall of the vessel body 1, and a control panel 30 is installed on the vessel body 1. The output end of the temperature sensor 13 is connected to the input end of the control panel 30, and the input end of the heating block 14 is connected to the output end of the control panel 30.

[0034] It should be noted that when the temperature sensor 13 detects that the temperature is too low, the heating block 14 is heated by the control panel 30 to increase the temperature. In this embodiment, the temperature sensor 13, heating block 14, control panel 30, and motor 5 are all commercially available conventional devices known to those skilled in the art. Models can be selected or customized according to actual needs. In this patent, we only use them without improving their structure and function. Their setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. They will not be described in detail here.

[0035] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A sulfamic acid reaction vessel with temperature monitoring comprising a vessel body (1), characterized in that, The kettle body (1) bottom fixed with multiple annular filter plate (2), multiple said annular filter plate (2) diameter is different, and multiple said annular filter plate (2) axis and kettle body (1) axis coincide, the inner wall of kettle body (1) and the largest diameter annular filter plate (2) between and adjacent annular filter plate (2) between there is gap (3), the kettle body (1) inside rotary connection has the pivot (4), the kettle body (1) top is installed motor (5), the output end of motor (5) and the one end of pivot (4) are fixed, the pivot (4) outside fixed with two cross bars (6), the bottom of cross bar (6) is fixed with multiple connecting rods (7), the bottom of connecting rod (7) is fixed with stirring paddle one (8), the stirring paddle one (8) rotationally cooperates in the corresponding gap (3), the pivot (4) outside fixed with two stirring paddle two (9), the stirring paddle two (9) is located in the inside rotation of the smallest diameter annular filter plate (2).

2. The sulfamic acid reactor with temperature monitoring according to claim 1, characterized in that, The middle part of the kettle body (1) is fixed and communicated with the liquid inlet pipe (10) and the exhaust pipe (11), the bottom of the kettle body (1) is fixed and communicated with the discharge pipe (12), the bottom of the kettle body (1) is also installed with temperature sensor (13), the inner wall of the kettle body (1) is installed with heating block (14), the kettle body (1) is installed with control panel (30), the output end of the temperature sensor (13) is connected with the input end of the control panel (30), and the input end of the heating block (14) is connected with the output end of the control panel (30).

3. The sulfamic acid reactor with temperature monitoring according to claim 1, characterized in that, The top of the kettle body (1) is fixed with a discharge pipe (16), the top of the discharge pipe (16) is fixed and communicated with a barrel (15), the bottom of the discharge pipe (16) is fixed with a baffle one (17), a plurality of circular holes one (18) are evenly arranged in the baffle one (17).

4. The sulfamic acid reactor with temperature monitoring according to claim 3, characterized in that, The bottom of the baffle one (17) is rotatably connected with a column body (19), the column body (19) is fixed with a baffle two (20) outside, the baffle two (20) is attached with the baffle one (17), a plurality of circular holes two (21) corresponding to the circular holes one (18) are arranged in the baffle two (20).

5. The sulfamic acid reactor with temperature monitoring according to claim 4, characterized in that, The baffle two (20) is fixed with a driven wheel (22) outside, the pivot (4) is fixed with a driving wheel (23) outside, and the driven wheel (22) and the driving wheel (23) are driven by a belt (24).

6. The sulfamic acid reactor with temperature monitoring according to claim 3, characterized in that, The pivot (4) is fixed with a material collecting disc (25) outside, the material collecting disc (25) is located below the discharge pipe (16), the top edge of the material collecting disc (25) is fixed with a baffle (26), a plurality of through holes one (27) are arranged in the baffle (26).

7. The sulfamic acid reactor with temperature monitoring according to claim 6, characterized in that, The inner wall of the kettle body (1) is fixed with a conical cylinder (28), the conical cylinder (28) is located below the material collecting disc (25), a plurality of through holes two (29) are arranged in the conical cylinder (28), and the vertical cross section diameter of the conical cylinder (28) gradually decreases from top to bottom.

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