A reaction kettle for producing hot pot base

Abstract

The present application relates to hot pot condiment production technical field, especially a kind of reaction kettle for producing hot pot condiment, including tank body, center stirring shaft, edge stirring shaft and drive assembly.The bottom of center stirring shaft is equipped with lifting impeller, which guides the material at tank bottom to the diffusion impeller of radial stirring section, and the diffusion impeller pushes the material to the side wall of tank body.The edge stirring shaft is equipped with axial guide baffle, which scrapes the material at tank wall to the bottom;the bottom is equipped with radial guide baffle, which pushes the material to the lifting impeller.The guide cylinder surrounds the lifting impeller, and its bottom end leaves a space with tank bottom.The radial guide baffle is rotatably connected with the edge stirring shaft, and its abutting arm contacts the blocking protrusion of the outer wall of guide cylinder in rotation, forcing the baffle to rotate.The reaction kettle forms a closed loop circulation of "bottom lifting-radial diffusion-side wall scraping-bottom convergence", avoids material accumulation and local overheating, prevents scorching, and improves the quality of hot pot condiment production.

Description

Technical Field

[0001] This invention relates to the field of hot pot base production technology, and in particular to a reaction vessel for producing hot pot base. Background Technology

[0002] Existing reaction vessels used for hot pot base production typically include a stainless steel vessel body, a jacketed heating assembly, a stirrer, and a mechanical seal. The inner wall of the vessel is mirror-polished, and the stirring shaft is equipped with scrapers that conform to the vessel wall to prevent high-viscosity materials from sticking and scorching. The heating system uses steam or heat transfer oil as the medium, transferring heat into the vessel through the jacket or coils. Some equipment is also equipped with a hydraulic tilting mechanism for easy unloading after frying. However, during the frying process, the high temperatures in these existing devices can easily cause localized overheating of the materials, resulting in a burnt taste. Simultaneously, volatile aroma components are significantly lost, and the production quality still largely depends on the operator's experience, making it difficult to meet the demands of standardized and refined hot pot base production. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides a reaction vessel for producing hot pot base, comprising a tank body and heating components disposed on the wall surface; The central stirring shaft is coaxially rotatably connected to the tank body; The edge stirring shaft is fixedly connected to the central stirring shaft and is arranged around its circumference; A drive assembly for driving the central stirring shaft to rotate and the edge stirring shafts to revolve around the central stirring shaft; The central stirring shaft is divided into an axial stirring section and a radial stirring section from the bottom of the tank upwards; The axial stirring section is equipped with a lifting impeller to guide the material at the bottom of the tank to the radial stirring section; The radial stirring section is equipped with a diffuser impeller to guide the material toward the side wall of the tank; The edge stirring shaft is sequentially equipped with an axial flow guide scraper and a radial flow guide scraper along the axis downwards. The axial guide scraper guides the material on the inner wall of the tank towards the bottom of the tank; The radial guide scraper guides the material at the bottom of the tank toward the lifting impeller; A guide cylinder is fixed inside the tank, and its peripheral wall surrounds the lifting impeller, with a gap between the bottom end of the guide cylinder and the bottom surface of the tank. The radial guide scraper is rotatably connected to the edge stirring shaft, and the axis of rotation is parallel to the edge stirring shaft. Furthermore, the radial guide scraper has an abutment arm extending toward the guide cylinder, and the outer wall of the guide cylinder has a blocking protrusion. During the rotation of the radial guide scraper, the abutment arm contacts the blocking protrusion, forcing the radial guide scraper to rotate.

[0004] Furthermore, the sidewall of the guide cylinder is fixedly connected to the sidewall of the tank body by multiple support rods, and each support rod is evenly distributed along the circumference of the guide cylinder.

[0005] Furthermore, the projection of the axial guide scraper in the vertical plane is inclined clockwise toward the direction of rotation; The projection of the radial guide scraper in the horizontal plane is inclined clockwise toward the direction of rotation; In the vertical direction, the top end of the axial guide scraper is higher than the top end of the diffuser impeller, and the bottom end of the axial guide scraper is located in the middle of the guide cylinder; The top end of the radial guide scraper is higher than the bottom end of the guide cylinder, and the bottom end of the radial guide scraper is lower than the bottom end of the guide cylinder.

[0006] Furthermore, an elastic element is provided in the edge stirring shaft, which causes the edge of the radial guide scraper to conform to the inner wall of the tank.

[0007] Furthermore, the edge of the radial guide scraper that fits against the inner wall of the tank is made of a flexible material.

[0008] Furthermore, the edge of the axial guide scraper that fits against the inner wall of the tank is made of a flexible material.

[0009] Furthermore, the bottom of the tank is hemispherical or conical, guiding the material at the bottom edge of the tank to the center of the bottom.

[0010] Furthermore, the blades of the lifting impeller are helical conveying blades.

[0011] Furthermore, an exhaust port is provided on the top of the tank.

[0012] Furthermore, an air filter is provided at the exhaust port location.

[0013] The beneficial effects of this invention are reflected in the following: a lifting impeller is installed below the central stirring shaft to guide the material from the bottom of the tank upwards; a diffusion impeller is installed on the upper part of the central stirring shaft to push the material lifted by the lifting impeller to the periphery; axial guide scrapers on the edge stirring shaft scrape off the material adhering to the inner wall of the tank, allowing this material to fall to the bottom of the tank; and radial guide scrapers push the bottom material back to the lifting impeller. This forms a closed-loop material circulation path of "bottom lifting—radial diffusion—side wall scraping—bottom convergence," keeping the solid material in a flowing, heated state to prevent material accumulation and heat buildup that could cause the solid material to scorch, thereby improving the production quality of the hot pot base. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the reaction vessel provided by the present invention; Figure 2 A three-dimensional structural diagram of the internal structure of the reactor provided by the present invention; Figure 3 A three-dimensional structural diagram of the internal structure of the reactor provided by the present invention (with hidden guide tube). Figure 4 This is a three-dimensional structural diagram of the internal structure of the reactor provided by the present invention (radial guide scraper rotates and connects to the edge stirring shaft). Figure 5 This is a vertical cross-sectional view of the reaction vessel provided by the present invention; Figure 6 This is a horizontal cross-sectional view of the reactor provided by the present invention; Figure 7 for Figure 6 A schematic diagram showing the state after the middle abutment arm contacts the blocking protrusion; Figure 8 for Figure 7 A magnified view of point q in the middle.

[0015] Figure label: 1. Tank body; 11. Heating assembly; 2. Central stirring shaft; 21. Axial stirring section; 211. Lifting impeller; 22. Radial stirring section; 221. Diffusion impeller; 3. Edge stirring shaft; 31. Elastic element; 4. Scraper; 41. Axial guide scraper; 42. Radial guide scraper; 421. Abutment arm; 5. Guide cylinder; 51. Support rod; 52. Blocking protrusion; 6. Drive assembly. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1 Reference Figures 1-8 A reaction vessel for producing hot pot base includes a tank body 1 and a heating assembly 11 disposed on the wall. The central stirring shaft 2 is rotatably connected to the tank body 1 on the same axis. The edge stirring shaft 3 is fixedly connected to the central stirring shaft 2 and is arranged circumferentially around the central stirring shaft 2; Drive component 6 drives the central stirring shaft 2 to rotate and drives the edge stirring shaft 3 to revolve around the central stirring shaft 2; The central stirring shaft 2 is divided into an axial stirring section 21 and a radial stirring section 22 from the bottom of the tank 1 upwards. The axial stirring section 21 is equipped with a lifting impeller 211, which guides the material at the bottom of the tank 1 toward the radial stirring section 22. The radial stirring section 22 is equipped with a diffuser impeller 221, which guides the material toward the side wall of the tank 1; The edge stirring shaft 3 is equipped with an axial flow guide scraper 41 and a radial flow guide scraper 42 sequentially along the axis downwards.

[0018] Existing reaction vessels used for hot pot base production typically include a stainless steel vessel body, a jacketed heating system, a stirrer, and a mechanical seal device.

[0019] The beef tallow hot pot base contains a large amount of solid materials, such as Sichuan peppercorns, broad bean paste, chili flakes, fermented black beans, and spice granules. During the stir-frying process, these materials are prone to settling and sticking to the inner wall of the can, resulting in uneven heat transfer, local overheating and scorching. This, in turn, affects the aroma of the hot pot base, causing it to taste bitter and burnt when consumed.

[0020] To address the issue of burnt flavor in hot pot broth, two main approaches are taken: filtering out the odor and improving the evenness of heating the broth.

[0021] The reactor used in this application for producing hot pot base is primarily designed to improve the uniformity of heating the materials during the frying process of the hot pot base, thereby reducing the proportion of charred substances produced.

[0022] The reactor of this application has a tank 1 for holding materials, and a jacketed coil heating assembly 11. Jacketed heating: a jacket is installed on the outer wall of the reactor, through which a heating medium flows. Some equipment uses a switchable heating / cooling jacket, and cooling water is introduced after the frying process. Coil heating: a spiral coil is installed inside the reactor, providing a large heat exchange area and high temperature control accuracy. Both types of heating assemblies 11 are common heating methods in the prior art. A stirring shaft is installed inside the tank 1, including a central stirring shaft 2, which is located at the center of the tank 1 and coaxial with it. One or more edge stirring shafts 3 are arranged around the central stirring shaft 2 and fixedly connected to it. A drive motor is installed outside the tank 1, driving the central stirring shaft 2 to rotate. Since the edge stirring shafts 3 are fixedly arranged around the central stirring shaft 2, the central stirring shaft 2 will revolve around the central stirring shaft 2 while rotating.

[0023] The central stirring shaft 2 is divided into two sections: an axial stirring section 21 near the bottom of the tank 1 and a radial stirring section 22 near the top of the tank 1. The impellers installed in the axial stirring section 21 and the radial stirring section 22 are of different types. The lifting impeller 211 installed in the axial stirring section 21 is used to axially and upwardly transport the high-viscosity material deposited at the bottom of the tank 1 to the radial stirring section 22. Specifically, the lifting impeller 211 is a helical blade with a helical direction opposite to the rotation direction of the central stirring shaft 2. This generates an upward axial thrust when the central stirring shaft 2 rotates in the forward direction, thereby overcoming the settling resistance of the high-viscosity material and ensuring that solid particles such as peppercorns and broad beans at the bottom are continuously lifted to the upper radial stirring section 22. A diffuser impeller 221 is installed in the radial stirring section 22. The diffuser impeller 221 throws the material flowing into the radial stirring section 22 toward the side wall of the tank 1, thereby forming a composite circulating flow field in the tank 1 that is conveyed from the bottom upward and then diffused radially toward the side wall. The blades of the diffuser impeller 221 can be vertical straight plates with their surfaces parallel to the axis of the central stirring shaft 2. The most common stirring blades can be used.

[0024] The edge stirring shaft 3 is equipped with an axial guide scraper 41 and a radial guide scraper 42 sequentially along its axis downwards. The axial guide scraper 41 guides the material inside the tank 1 towards the bottom of the tank 1. The radial guide scraper 42 guides the material at the bottom of the tank 1 toward the lifting impeller 211; The edge of the axial guide scraper 41 contacts the circumferential inner wall of the tank 1 and provides axial thrust. When the axial guide scraper 41 revolves with the edge stirring shaft 3, the material adhering to the inner wall of the tank 1 is scraped off to the bottom of the tank 1 during the revolution.

[0025] The axial guide scraper 41 provides radial thrust to push the solid material at the bottom of the tank 1 to the vicinity of the lifting impeller 211. Ultimately, through the synergistic action of the lifting impeller 211, the diffuser impeller 221, the axial guide scraper 41, and the radial guide scraper 42, a full-cycle material circulation path of "bottom lifting—middle diffusion—sidewall scraping—bottom concentration—recirculation and remixing" is formed. This makes the chaotic stirring orderly, avoids material deposition at the bottom or sidewalls, and keeps the material in a flowing state as much as possible, preventing excessive heat accumulation within the material and effectively inhibiting the formation of charred material.

[0026] Furthermore, a guide cylinder 5 is fixedly installed inside the tank body 1. The circumferential wall of the guide cylinder 5 surrounds the lifting impeller 211. The top end of the guide cylinder 5 is spaced from the diffuser impeller 221, and the bottom end of the guide cylinder 5 is spaced from the bottom surface of the tank body 1.

[0027] The lifting impeller 211 needs to convey materials upwards, which requires overcoming gravity, hydraulic pressure, and viscous resistance. However, the lifting impeller 211 is completely bound to the central stirring shaft 2 and the edge stirring shaft 3. In particular, the revolution of the edge stirring shaft 3 has a very large radius of rotation, which means that the resistance arm of the edge stirring shaft 3 is extremely large. This leads to a significant increase in the resistance torque experienced by the edge stirring shaft 3 during revolution. At the same time, the high viscosity of the hot pot base further exacerbates the cumulative effect of the revolution resistance torque of the edge stirring shaft 3. Therefore, it is impossible for the central stirring shaft 2 to achieve high-speed rotation, which is almost impossible in the mixing process. The low speed also limits the lifting capacity of the lifting impeller 211. Therefore, the guide cylinder 5 significantly reduces the effective hydraulic resistance of the impeller 211 under high viscosity conditions by constraining the peripheral flow field of the impeller 211 and reducing radial turbulence dissipation, thereby maintaining a stable axial conveying throughput even under low-speed operation of the central stirring shaft 2; wherein, the top of the guide cylinder 5 is at least 50 mm higher than the lower edge of the diffuser impeller 221, serving as an axial guide for the hot pot base material; the bottom of the guide cylinder 5 is located above the bottom surface of the tank body 1, serving as the inlet channel for material entry.

[0028] More specifically, the bottom of the guide cylinder 5 needs to maintain a distance from the bottom of the tank 1 as the material inlet. However, the diameter of the guide cylinder 5 is much smaller than that of the tank 1. Simply hollowing out the lower sidewall of the guide cylinder 5 would greatly reduce the inlet area, hindering material entry. Therefore, in this embodiment, multiple support rods 51 are used to horizontally fix the sidewall of the guide cylinder 5 to the sidewall of the tank 1. The support rods 51 extend along the diameter direction, away from the guide cylinder 5. The greater the distance between the support rods 51, the larger the hollowed-out area between them. This hollowed-out area is larger than the cross-sectional area of ​​the guide cylinder 5, thus hardly hindering material entry into the guide cylinder 5.

[0029] More specifically, the projection of the axial guide scraper 41 in the vertical plane is inclined clockwise toward the direction of rotation; The projection of the radial guide scraper 42 in the horizontal plane is inclined clockwise toward the direction of rotation; In the vertical direction, the top end of the axial guide scraper 41 is higher than the top end of the diffuser impeller 221, and the bottom end of the axial guide scraper 41 is located in the middle of the guide cylinder 5. The top end of the radial guide scraper 42 is higher than the bottom end of the guide cylinder 5, and the bottom end of the radial guide scraper 42 is lower than the bottom end of the guide cylinder 5.

[0030] The scrapers 4 in the same edge stirring shaft 3 are divided into two groups. Through the design of different tilt directions, the scrapers 4 in different groups generate directional force to guide the material in different positions in a specific direction.

[0031] In a typical case, the scraper 4 has its surface perpendicular to the plane of rotation, which allows it to scrape the material off the inner wall of the tank 1. However, the height range covered by the scraper 4 is quite wide. For scrapers 4 located at the same height as the diffuser impeller 221, if the scraped material falls only by gravity, it is easily pushed back against the tank 1 wall by the diffuser impeller 221. Simultaneously, the material is far from the bottom of the tank 1, resulting in a long falling path, easy backflow, and a longer time for the material to sink, significantly reducing material flow efficiency. In this embodiment, the upper scraper 4, i.e., the scraper 4 located at the same height as the diffuser impeller 221, is used as an axial guide scraper 41, with its tilt angle guiding the material downwards, allowing the material to quickly sink to the bottom of the tank 1. Specifically, as shown... Figure 5 As shown, in the projection of the vertical plane, the edge of the axial guide scraper 41 that contacts the inner wall of the tank 1 forms a clockwise angle α with the horizontal line, with angle α ranging from 60° to 85°, ensuring that the axial component force dominates the downward movement of the material; the lower scraper 4 serves as the radial guide scraper 42, as... Figure 6 As shown in the horizontal projection, the width direction of the radial guide scraper 42 is a straight line L1, and the line connecting the radial lines is a straight line L2. The straight lines L1 and L2 form an angle b, which is between 5° and 30°, ensuring that the radial force guides the material to converge towards the center of the tank 1. Through the synergistic effect of the axial and radial guide scrapers 42, the material flow path is refined, reducing energy loss caused by disordered material flow, improving material flow efficiency, and reducing material accumulation, thereby reducing the probability of material scorching.

[0032] The edge of the radial guide scraper 42 that fits against the inner wall of the tank 1 is made of a flexible material.

[0033] The edge of the axial guide scraper 41 that fits against the inner wall of the tank 1 is made of a flexible material.

[0034] The flexible material can be food-grade silicone. The radial guide scraper 42 and the axial guide scraper 41 are coated with silicone at their edges near the inner wall of the tank 1 to prevent the metal scraper 4 from scratching the inner wall of the tank 1. At the same time, the flexible material can adaptively conform to the slight deformation of the inner wall of the tank 1, increasing the fit between the scraper 4 and the inner wall of the tank 1 and ensuring continuous and gapless scraping.

[0035] Furthermore, such as Figures 4-7 As shown.

[0036] The radial guide scraper 42 is rotatably connected to the edge stirring shaft 3, and the axis of rotation is parallel to the edge stirring shaft 3; Furthermore, the radial guide scraper 42 has an abutment arm 421 extending toward the guide cylinder 5, and the outer wall of the guide cylinder 5 has a blocking protrusion 52. During the rotation of the radial guide scraper 42, the abutment arm 421 contacts the blocking protrusion 52, forcing the radial guide scraper 42 to rotate.

[0037] The radial guide scraper 42 is no longer simply fixed in the edge stirring shaft 3, but has a guide hole in it so that it can be fitted onto the edge stirring shaft 3 and rotate around it. When the edge stirring shaft 3 rotates, the side of the radial guide scraper 42 facing the direction of rotation receives the resistance of the material and oil, while the edge of the radial guide scraper 42 facing away from the direction of rotation is in close contact with the inner wall of the tank 1, so that the radial guide scraper 42 maintains its own angle unchanged during rotation.

[0038] Further, refer to Figure 4 , Figure 7 , Figure 8 The radial guide scraper 42 has an abutment arm 421 extending toward the guide cylinder 5. When the radial guide scraper 42 rotates to a specific position, the abutment arm 421 collides with the blocking protrusion 52 on the outer wall of the guide cylinder 5, forcing the radial guide scraper 42 to rotate around the edge stirring shaft 3. During the rotation, the radial guide scraper 42 provides a radial thrust to the material, forcing the liquid flow direction to undergo instantaneous disturbance, breaking the laminar inertia, while enhancing the turbulent mixing effect and better dispersing the material accumulated at the bottom of the tank 1. The solid material at the bottom of the tank 1 floats up, making it easier for the lifting impeller 211 to attract the bottom material into the interior of the guide cylinder 5, forming a closed-loop circulation path.

[0039] Understandably, with the axis of the edge stirring shaft 3 as the boundary, the area of ​​the radial guide scraper 42 near the inner wall of the tank 1 is larger than the area away from the inner wall of the tank 1, forming an asymmetrical structure. This prevents the radial guide scraper 42 from deflecting and becoming unstable due to excessive fluid resistance on the side away from the inner wall of the tank 1. However, this asymmetrical structure limits the distance the radial guide scraper 42 can extend towards the guide cylinder 5, weakening the effect of the inclined flow. To address this, in this embodiment, an elastic element 31 is provided in the edge stirring shaft 3. One end of the elastic element 31 is connected to the root of the radial guide scraper 42, and the other end is fixed to the edge stirring shaft 3. The elastic element 31 applies a preload to the radial guide scraper 42, making the edge of the radial guide scraper 42 fit tightly against the inner wall of the tank 1. Simply put, the elastic force of the elastic element 31 compensates for the fluid resistance on the side of the radial guide scraper 42 near the inner wall of the tank 1, thereby increasing the effective length of the radial guide scraper 42 extending towards the guide cylinder 5 and enhancing the inclined flow effect.

[0040] Furthermore, the bottom of the tank 1 is spherical or conical, which guides the material at the bottom edge of the tank 1 to the center of the bottom of the tank 1.

[0041] As mentioned earlier, the lifting impeller 211 in this application is located in the central stirring shaft 2, and its rotational speed is not high, making it difficult to generate a strong axial suction force like a centrifugal pump. Therefore, in this embodiment, to improve the suction efficiency of the lifting impeller 211 and reduce the residence time of material at the bottom of the tank 1, the bottom of the tank 1 is designed as a spherical or conical structure, allowing the material to naturally converge towards the center under gravity. Simultaneously, the instantaneous disturbance generated by the radial guide scraper 42 and the inclined surface guiding effect continuously push the edge deposits towards the feed inlet of the lifting impeller 211. In this way, the material is closer to the feed inlet of the lifting impeller 211, significantly reducing suction resistance. Combined with the synergistic effect of the negative pressure zone inside the guide cylinder 5, a three-stage linkage mechanism of "gravity guidance—radial disturbance—axial suction" is formed, allowing the bottom deposited material to quickly enter the guide cylinder 5 and be lifted to the upper part of the tank 1, completing an efficient circulation.

[0042] Ultimately, the process achieves the following: "The lifting impeller 211 drives the material to flow upward—the diffusion impeller 221 drives the upper material to diffuse outward—the axial guide scraper 41 guides the material on the inner wall of the tank 1 to the bottom of the tank 1—the radial guide scraper 42, in conjunction with the spherical or conical structure at the bottom of the tank 1, guides the material back to the vicinity of the inlet of the guide cylinder 5," forming a closed-loop flow path.

[0043] Furthermore, an exhaust port is provided at the top of the tank 1. The exhaust port is connected to the external environment and is used to remove water vapor and small amounts of gas generated during the reaction process from the tank 1, so as to avoid the increase of gas pressure inside the tank affecting the stirring stability and sealing safety.

[0044] Furthermore, an air filtration device is installed at the exhaust port. The air filtration device has an activated carbon fiber filter element, which is used to adsorb odor molecules and fine oil fume particles in the airflow, reducing the pollution of the surrounding environment by the exhaust gas.

[0045] In the description of the embodiments of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0046] In the description of embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0048] In the description of embodiments of the present invention, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0049] In the description of the embodiments of the present invention, it should be understood that "-" and "~" represent a range of two numerical values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0050] In the description of embodiments of the present invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction vessel for producing hot pot base, characterized in that, This includes heating components installed on the tank body and walls; The central stirring shaft is coaxially rotatably connected to the tank body; The edge stirring shaft is fixedly connected to the central stirring shaft and is arranged around its circumference; A drive assembly for driving the central stirring shaft to rotate and the edge stirring shafts to revolve around the central stirring shaft; The central stirring shaft is divided into an axial stirring section and a radial stirring section from the bottom of the tank upwards; The axial stirring section is equipped with a lifting impeller to guide the material at the bottom of the tank to the radial stirring section; The radial stirring section is equipped with a diffuser impeller to guide the material toward the side wall of the tank; The edge stirring shaft is sequentially equipped with an axial flow guide scraper and a radial flow guide scraper along the axis downwards. The axial guide scraper guides the material on the inner wall of the tank towards the bottom of the tank; The radial guide scraper guides the material at the bottom of the tank toward the lifting impeller; A guide cylinder is fixed inside the tank, and its peripheral wall surrounds the lifting impeller, with a gap between the bottom end of the guide cylinder and the bottom surface of the tank. The radial guide scraper is rotatably connected to the edge stirring shaft, and the axis of rotation is parallel to the edge stirring shaft. Furthermore, the radial guide scraper has an abutment arm extending toward the guide cylinder, and the outer wall of the guide cylinder has a blocking protrusion. During the rotation of the radial guide scraper, the abutment arm contacts the blocking protrusion, forcing the radial guide scraper to rotate.

2. The reaction vessel for producing hot pot base according to claim 1, characterized in that, The side wall of the guide cylinder is fixedly connected to the side wall of the tank body by multiple support rods, and each support rod is evenly distributed along the circumference of the guide cylinder.

3. The reaction vessel for producing hot pot base according to claim 1, characterized in that, The projection of the axial guide scraper in the vertical plane is inclined clockwise toward the direction of rotation; The projection of the radial guide scraper in the horizontal plane is inclined clockwise toward the direction of rotation; In the vertical direction, the top end of the axial guide scraper is higher than the top end of the diffuser impeller, and the bottom end of the axial guide scraper is located in the middle of the guide cylinder; The top end of the radial guide scraper is higher than the bottom end of the guide cylinder, and the bottom end of the radial guide scraper is lower than the bottom end of the guide cylinder.

4. The reaction vessel for producing hot pot base according to claim 1, characterized in that, An elastic element is provided in the edge stirring shaft, which causes the edge of the radial guide scraper to fit against the inner wall of the tank.

5. The reaction vessel for producing hot pot base according to claim 1, characterized in that, The edge of the radial guide scraper that fits against the inner wall of the tank is made of a flexible material.

6. The reaction vessel for producing hot pot base according to claim 1, characterized in that, The edge of the axial guide scraper that fits against the inner wall of the tank is made of a flexible material.

7. The reaction vessel for producing hot pot base according to claim 2, characterized in that, The bottom of the tank is hemispherical or conical, guiding the material at the bottom edge of the tank to the center of the bottom.

8. The reaction vessel for producing hot pot base according to claim 1, characterized in that, The blades of the lifting impeller are spiral conveying blades.

9. The reaction vessel for producing hot pot base according to claim 1, characterized in that, An exhaust port is provided on the top of the tank.

10. The reaction vessel for producing hot pot base according to claim 9, characterized in that, An air filter is installed at the exhaust port.

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