Reaction kettle capable of preventing crystallization blockage

Abstract

The utility model relates to a kind of anti-crystallization plugging's reaction kettle, the reaction kettle is provided with stirring group, the stirring group includes power part and working part, the power part includes the shaft that part is set in kettle body, the working part includes paddle, the paddle is connected to the one end of the shaft near the kettle body bottom portion.This new type is optimized to stirring by being provided with stirring group, and paddle of lower pressure type design and equidistant distribution's stirrer form circulation flow field, significantly improve the flowability of bottom material and reduce adhesion.Precisely positioning the paddle in the vicinity of discharge port, and supplemented by the design of guide vane, so that the paddle precisely acts on discharge port, ensure that material is zero residual, further improve the anti-blocking performance.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a reaction vessel that prevents crystallization and blockage. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, reaction vessels are commonly used equipment for processes such as material mixing, reaction, and crystallization. However, existing reaction vessels have a common problem during operation: due to gravity, materials tend to accumulate at the bottom of the vessel, especially high-viscosity materials or substances that easily crystallize. Traditional reaction vessels typically only have stirring devices in the upper or middle part of the vessel, while lacking an effective stirring mechanism at the bottom, resulting in the accumulation of materials not being fully mixed or discharged.

[0003] As the reaction proceeds, material that is not discharged in time may gradually solidify or crystallize at the bottom, especially near the discharge port, easily causing blockages, severely impacting production efficiency, and even leading to equipment failure. Furthermore, manual cleaning not only increases maintenance costs but may also pose safety hazards due to working in confined spaces. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a reaction vessel that prevents crystallization blockage, so as to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A reaction vessel for preventing crystallization blockage is provided, the reaction vessel is provided with a stirring group, the stirring group includes a power unit and a working unit, the power unit includes a rotating shaft partially disposed in the vessel body, and the working unit includes a blade, the blade being connected to one end of the rotating shaft near the bottom of the vessel body.

[0006] Furthermore, the vessel body includes a cylindrical body and a first end cap and a second end cap respectively connected to the top and bottom of the cylindrical body, and coils are evenly arranged on a portion of the surface of the cylindrical body and the second end cap.

[0007] Furthermore, the power unit also includes a motor and a reducer located outside the vessel body, the motor being coupled to the reducer, and one end of the rotating shaft being coupled to the reducer.

[0008] Furthermore, the power unit also includes a bearing, which is fitted to the rotating shaft and located near the blade; the reactor also includes a guide plate, one end of which is connected to the bearing and the other end of which is connected to the inner wall of the second head; the second head is also provided with a discharge port and a water outlet, and the blade is close to the discharge port.

[0009] Furthermore, the working part also includes a stirrer sleeved on the rotating shaft, and the stirrers are equidistant from each other; the rotating shaft, the blades, the stirrers, and the discharge port are collinear along the center of the first direction.

[0010] Furthermore, the reactor also includes a mounting base disposed on the first head and a sealed balance tank connected to the mounting base, the sealed balance tank being located outside the reactor body and sleeved on the rotating shaft.

[0011] Furthermore, the reactor also includes a protective cover, one end of which is connected to the mounting base and the other end to the motor, to enclose the reducer and the sealed balance tank.

[0012] Furthermore, the surface of the first end cap is also provided with a manhole, a spare port, a pressure gauge port, a sight glass, a nitrogen port, a vent port, a safety valve port, a sampling port, a feeding port, a water filling port, a vacuum port, a washing xylene port, a balance port, and a thermometer port, wherein the thermometer port extends into the vessel body and its end is closed.

[0013] Furthermore, support seats are evenly distributed on the surface of the cylinder body, and the support seats are connected to grounding plates.

[0014] Furthermore, a steam port is also provided on the surface of the cylinder body.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This novel design optimizes mixing by incorporating a stirring assembly. The downward-pressing blades and equidistantly distributed agitators create a circulating flow field, significantly improving the fluidity of materials at the bottom and reducing adhesion. By precisely positioning the blades near the discharge port and utilizing a guide vane design, the blades act precisely at the discharge port, ensuring zero material residue and further enhancing anti-clogging performance. Attached Figure Description

[0016] Figure 1 A cross-sectional view of a reaction vessel for preventing crystallization blockage according to an embodiment of the present invention is shown.

[0017] Figure 2 A top view of a reaction vessel for preventing crystallization blockage according to an embodiment of the present invention is shown.

[0018] In the attached diagram, the following are labeled: 1. Stirring assembly; 11. Power unit; 111. Shaft; 112. Motor; 113. Reducer; 114. Bearing; 12. Working part; 121. Blade; 122. Agitator; 2. Vessel body; 21. Shell; 211. Steam port; 22. First end cap; 221. Manhole; 222. Spare port; 223. Pressure gauge port; 224. Sight glass; 225. Nitrogen port; 226. Vent. 227. Safety valve port; 228. Sampling port; 229. Feed port; 2210. Water port; 2211. Vacuum port; 2212. Washing xylene port; 2213. Balance port; 2214. Thermometer port; 23. Second end cap; 231. Discharge port; 232. Water outlet; 3. Coil; 4. Guide plate; 5. Mounting base; 6. Sealed balance tank; 7. Protective cover; 8. Support base; 9. Grounding plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the anti-crystallization and blockage reaction vessel proposed by this utility model is provided in conjunction with the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Please see Figure 1 and Figure 2In this embodiment, the reactor designed to prevent crystallization and blockage includes a stirring assembly 1. The stirring assembly 1 comprises a power unit 11 and a working unit 12. The power unit 11 outputs power to enable the working unit 12 to thoroughly stir and mix the materials within the reactor body 2. The reactor body 2 includes a cylindrical body 21 and a first end cap 22 and a second end cap 23 connected to the top and bottom of the cylindrical body 21, respectively. Coils 3 are uniformly arranged on portions of the surfaces of the cylindrical body 21 and the second end cap 23. The coils 3 are used to heat or cool the materials within the reactor body 2 by introducing a temperature-controlled heat exchange medium, thereby maintaining a suitable temperature environment for the reaction and effectively inhibiting crystallization and precipitation of the materials on the inner wall and bottom of the reactor body 2. Preferably, the coils 3 adopt a spiral winding structure that tightly adheres to the outer wall surfaces of the cylindrical body 21 and the second end cap 23 to facilitate the circulation of the heat exchange medium.

[0021] Specifically, the power unit 11 includes a rotating shaft 111 partially disposed within the vessel body 2. The power unit 11 also includes a motor 112 and a reducer 113 located outside the vessel body 2. The motor 112 is coupled to the reducer 113, and one end of the rotating shaft 111 is coupled to the reducer 113. The output shaft of the reducer 113 is fixedly connected to the rotating shaft 111 via a coupling to ensure stable power transmission. The rotating shaft 111 extends into the vessel body 2 and is connected to the working part 12.

[0022] Furthermore, the working part 12 includes a paddle 121 connected to one end of the rotating shaft 111 near the bottom of the vessel body 2. The working part 12 also includes a stirrer 122 sleeved on the rotating shaft 111, with the stirrers 122 equidistantly spaced. The paddle 121 and the stirrer 122 are preferably designed with a downward pressure, which can push the material downwards and form a circulation during stirring, promoting uniform mixing and effectively preventing material accumulation on the inner wall or bottom of the vessel body 2. Preferably, the surfaces of the paddle 121 and the stirrer 122 are polished to reduce material adhesion and lower the risk of crystallization blockage.

[0023] Furthermore, the power unit 11 also includes a bearing 114, which is fitted to the rotating shaft 111 and positioned close to the impeller 121. The reactor also includes a guide plate 4, one end of which is connected to the bearing 114, and the other end is connected to the inner wall of the second end cap 23. The second end cap 23 is also provided with a discharge port 231 and a water outlet 232. The discharge port 231 is used to discharge the material after the reaction is completed, and the water outlet 232 is used to discharge the wastewater generated during the cleaning of the reactor body 2. The impeller 121 is close to the discharge port 231, and the position of the impeller 121 is designed to directly push the material near the discharge port 231 during the stirring process, preventing the material from stagnating and crystallizing at the discharge port 231. Simultaneously, the upper edge of the guide plate 4 is connected to the upper end face of the bearing 114, and the lower edge is flush with the lowest point of the discharge port 231, thereby sealing off the dead space around the bearing 114 that is lower than the lowest point of the discharge port 231, making the lowest point of the discharge port 231 the lowest point of the vessel body 2, ensuring that all materials in the vessel body 2 can flow out normally. The rotating shaft 111, the impeller 121, the stirrer 122, and the discharge port 231 are collinear along the center of a first direction. In this embodiment, the first direction is the height direction of the vessel body 2, i.e. Figure 1 As shown in the vertical direction, this collinear design ensures that the rotation center of the stirring group 1 and the geometric center of the discharge port 231 are precisely aligned, so that the pushing force of the blade 121 on the material during rotation can be evenly applied to the area of ​​the discharge port 231, avoiding crystallization and deposition caused by uneven force leading to local material flow velocity differences.

[0024] Furthermore, the reactor also includes a mounting base 5 disposed on the first end cap 22 and a sealed balance tank 6 connected to the mounting base 5. The sealed balance tank 6 is located outside the reactor body 2 and is sleeved on the rotating shaft 111. Preferably, the sealed balance tank 6 is provided with an elastic sealing membrane. When the rotating shaft 111 rotates at high speed, the elastic sealing membrane can adaptively adjust with the slight axial movement of the rotating shaft 111, ensuring the dynamic sealing performance between the rotating shaft 111 and the sealed balance tank 6, and effectively preventing material from crystallizing and leaking at the gap between the rotating shaft 111 and the first end cap 22. The reactor also includes a protective cover 7, one end of which is connected to the mounting base 5 and the other end to the motor 112, to enclose the reducer 113 and the sealed balance tank 6, which can effectively reduce the noise generated by the motor 112 and the reducer 113 during operation, creating a quieter working environment for the operators. It also prevents external dust from entering the interior of the protective cover 7 and adhering to the surfaces of the reducer 113 and the sealed balance tank 6, thus affecting their normal operation.

[0025] Furthermore, the surface of the first end cap 22 is also provided with a manhole 221, a spare port 222, a pressure gauge port 223, a sight glass 224, a nitrogen port 225, a vent port 226, a safety valve port 227, a sampling port 228, a feeding port 229, a water filling port 2210, a vacuum port 2211, a xylene washing port 2212, a balancing port 2213, and a thermometer port 2214. The thermometer port 2214 extends into the vessel body 2 and its end is closed. All of the above ports are installed using pipes and flanges. Specifically, the manhole 221 facilitates the entry of operators into the vessel body 2 for inspection and cleaning. The spare port 222 can be flexibly connected to different pipelines or instruments according to actual production needs, improving the versatility of the equipment. The pressure gauge port 223 is used to install a pressure gauge to monitor the pressure changes inside the vessel body 2 in real time, ensuring that the reaction takes place within a safe pressure range. The sight glass 224 is made of high-temperature and corrosion-resistant quartz glass, allowing operators to observe the reaction state and liquid level of the materials inside the reactor 2. The nitrogen port 225 allows nitrogen to be introduced, replacing the air inside the reactor 2 to prevent reaction between the materials and air, and also pressurizing the reactor 2 after the reaction to facilitate material discharge. The vent port 226 is used to discharge gas from the reactor 2 before reaction or during maintenance, balancing the internal and external pressures, and also to discharge gases produced during crystallization. The safety valve port 227 is equipped with a safety valve that automatically opens to release pressure when the pressure inside the reactor 2 exceeds a set value, ensuring the safety of the equipment and operators. The sampling port 228 allows for periodic sampling of small amounts of material for analysis and testing during the reaction, enabling timely adjustment of reaction process parameters. The feeding port 229 is used to add solid or liquid raw materials to the reactor 2; its feed pipe can be selected with different materials and diameters depending on the material characteristics. The water inlet 2210 is used to add water or other solvents required for the reaction. The vacuum port 2211 can be connected to a vacuum pump to perform a vacuum operation inside the reactor body 2, meeting the needs of certain reactions that require vacuum conditions. The xylene washing port 2212 is used to introduce xylene to clean the inside of the reactor body 2, removing residual materials and impurities. The balancing port 2213 can maintain pressure balance in different areas within the reactor body 2, avoiding excessively high or low local pressures that could affect the reaction effect. A thermometer is inserted into the thermometer port 2214 to accurately measure the temperature of the materials inside the reactor body 2, providing data support for temperature control. Its closed end design prevents materials from entering the thermometer port 2214 and causing blockage. These interfaces make the reactor more functional, meeting the needs of different reaction processes and improving its practicality and reliability.

[0026] Furthermore, support bases 8 are evenly distributed on the surface of the cylinder body 21, and the support bases 8 are connected to grounding plates 9. Steam ports 211 are also provided on the surface of the cylinder body 21. The support bases 8 are fixedly connected to the cylinder body 21 by welding and are detachably connected to the grounding plates 9 by bolts. The grounding plates 9 can promptly discharge static electricity generated during the reaction, effectively preventing the accumulation of static electricity and potential safety hazards, while also enhancing the overall stability of the reaction vessel. The steam ports 211 are connected to an external steam generator, which can introduce high-temperature steam into the vessel body 2. This preheats the interior of the vessel body 2, shortening the reaction start-up time, and after the reaction, the high temperature of the steam can be used to purge the inner wall of the vessel body 2, further reducing material residue.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A reaction vessel for preventing crystallization blockage, characterized in that: The reactor is equipped with a stirring group (1), which includes a power unit (11) and a working unit (12). The power unit (11) includes a rotating shaft (111) partially disposed inside the reactor body (2). The working unit (12) includes a blade (121) connected to one end of the rotating shaft (111) near the bottom of the reactor body (2).

2. The reaction vessel for preventing crystallization blockage as described in claim 1, characterized in that: The vessel body (2) includes a cylindrical body (21) and a first end cap (22) and a second end cap (23) respectively connected to the top and bottom of the cylindrical body (21). Coils (3) are also uniformly arranged on a portion of the surface of the cylindrical body (21) and the second end cap (23).

3. The reaction vessel for preventing crystallization blockage as described in claim 2, characterized in that: The power unit (11) also includes a motor (112) and a reducer (113) located outside the vessel body (2). The motor (112) is coupled to the reducer (113), and one end of the rotating shaft (111) is coupled to the reducer (113).

4. The reaction vessel for preventing crystallization blockage as described in claim 3, characterized in that: The power unit (11) also includes a bearing (114), which is fitted to the rotating shaft (111) and located near the blade (121); the reactor also includes a guide plate (4), one end of which is connected to the bearing (114) and the other end is connected to the inner wall of the second end cap (23); the second end cap (23) is also provided with a discharge port (231) and a water outlet (232), and the blade (121) is close to the discharge port (231).

5. The reaction vessel for preventing crystallization blockage as described in claim 4, characterized in that: The working part (12) also includes a stirrer (122) sleeved on the rotating shaft (111), and the stirrers (122) are equidistant from each other; the rotating shaft (111), the blades (121), the stirrers (122) and the discharge port (231) are collinear along the center of the first direction.

6. The reaction vessel for preventing crystallization blockage as described in claim 5, characterized in that: The reactor also includes a mounting base (5) disposed on the first end cap (22) and a sealed balance tank (6) connected to the mounting base (5). The sealed balance tank (6) is located outside the reactor body (2) and is sleeved on the rotating shaft (111).

7. The reaction vessel for preventing crystallization blockage as described in claim 6, characterized in that: The reactor also includes a protective cover (7), one end of which is connected to the mounting base (5) and the other end is connected to the motor (112) to enclose the reducer (113) and the sealed balance tank (6).

8. The reaction vessel for preventing crystallization blockage as described in claim 7, characterized in that: The surface of the first end cap (22) is also provided with a manhole (221), a spare port (222), a pressure gauge port (223), a sight glass (224), a nitrogen port (225), a vent port (226), a safety valve port (227), a sampling port (228), a feeding port (229), a water filling port (2210), a vacuum port (2211), a washing xylene port (2212), a balance port (2213), and a thermometer port (2214). The thermometer port (2214) extends into the vessel body (2) and its end is closed.

9. A reaction vessel for preventing crystallization blockage as described in claim 8, characterized in that: Support seats (8) are also evenly provided on the surface of the cylinder body (21), and the support seats (8) are connected to grounding plates (9).

10. A reaction vessel for preventing crystallization blockage as described in claim 9, characterized in that: A steam port (211) is also provided on the surface of the cylinder body (21).

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