Anti-wall-hanging scraper structure of water-based resin synthesis reaction kettle

Abstract

The utility model relates to the technical field of reaction kettles, and discloses an anti-wall-hanging scraper structure of a water-based resin synthesis reaction kettle, which comprises a rack, a heating cover is fixedly arranged in the center of the rack, a reaction kettle barrel body is sleeved in the heating cover, and a scraper is arranged in the reaction kettle barrel body. A barrel cover is fixedly mounted at the top end of the reaction kettle barrel body. According to the anti-wall-hanging scraper structure of the water-based resin synthesis reaction kettle, by arranging the rotating assembly, when a servo motor on a support is started, a center rod is matched to drive a stirring paddle at the bottom end to rotate for stirring and mixing, and when the servo motor is started, a rotating shaft, a driving bevel gear, a rotating cylinder and a driven bevel gear are matched to enable a stirring paddle at the top end to rotate for stirring and mixing; the rotary drum drives the conical cover and the connecting rod to rotate synchronously, so that the horizontal scrapers, the vertical scrapers and the inclined scrapers rotate synchronously, materials are prevented from being hung on the wall, meanwhile, the multiple sets of transverse stirring shafts which are arranged in a staggered mode are driven to rotate for stirring, and then the material synthesis effect is better.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to an anti-wall scraper structure for an aqueous resin synthesis reaction vessel. Background Technology

[0002] In the production process of water-based resins, the reactor is the core equipment, undertaking important tasks such as material mixing and reaction. Due to the characteristics of water-based resins, such as high viscosity, they are very easy to adhere to the inner wall of the reactor during the reaction process. This not only leads to material waste and increases production costs, but may also affect the quality of subsequent products, and even interfere with the normal operation of the reactor due to the accumulation of wall-mounted materials.

[0003] Currently, various technical solutions have been developed to address the issue of material adhesion to the inner wall of reactors. For example, solutions using centrifugal force and magnetic force to drive vibration have very limited effectiveness in preventing material adhesion and are insufficient to meet the demands of high-efficiency production. Furthermore, some existing scraper structures are too simple to adapt well to conical reactor structures, resulting in poor scraping and cleaning effects at the bottom of the lid and overall inadequate anti-adhesion performance. Additionally, the simple mixing structure fails to significantly improve synthesis efficiency.

[0004] In view of this, we propose an anti-wall scraper structure for an aqueous resin synthesis reactor. Utility Model Content

[0005] The purpose of this invention is to provide an anti-wall scraper structure for an aqueous resin synthesis reactor, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wall-mounted scraper structure for an aqueous resin synthesis reactor includes a frame. A heating hood is fixedly installed inside the center of the frame. A reactor body is fitted inside the heating hood. A lid is fixedly installed at the top of the reactor body. A water inlet pipe and a feed pipe are fixedly installed at both ends of the arc-shaped sidewall of the reactor body, respectively. A rotating assembly is provided on the reactor body. The rotating assembly includes:

[0008] The bracket has one end fixedly connected to the top of the bucket lid, and a servo motor is fixedly installed at the other end of the bracket. A central rod is fixedly installed at the output end of the servo motor, and a bottom stirring paddle is fixedly installed on the outside of the bottom end of the central rod.

[0009] A servo motor is fixedly installed on the top of the bucket lid. A rotating shaft is fixedly installed on the output end of the servo motor. A driving bevel gear is fixedly installed on the outside of the rotating shaft. A rotating cylinder is rotatably installed inside the center of the bucket lid through a sealed bearing. A driven bevel gear is fixedly installed on the outside of the top of the rotating cylinder. The driving bevel gear meshes with the driven bevel gear. A central rod is sleeved inside the rotating cylinder. A top stirring paddle and a conical cover are fixedly installed on the outside of the bottom of the rotating cylinder. The top stirring paddle is located directly below the conical cover.

[0010] A connecting rod is fixedly connected to one end of the conical cover. A horizontal scraper is fixedly installed at the other end of the connecting rod. The top of the horizontal scraper slides against the bottom of the barrel cover. A vertical scraper is fixedly installed at the bottom of the horizontal scraper. The outer wall of one end of the vertical scraper slides against the vertical arc-shaped inner wall of the reactor body. An oblique scraper is fixedly installed at the bottom of the vertical scraper. The side wall of one end of the oblique scraper slides against the oblique arc-shaped inner wall of the reactor body. A horizontal stirring shaft is fixedly installed on the side wall of the other end of the vertical scraper.

[0011] In a further embodiment, an air inlet pipe is fixedly installed inside the top side wall of the heating cover, and an air outlet pipe is fixedly installed inside the bottom side wall of the heating cover, so as to achieve better heating.

[0012] In a further embodiment, a discharge pipe is fixedly installed at the bottom of the reactor body, and an exhaust pipe is fixedly installed inside the lid to better exhaust the gas.

[0013] In a further embodiment, the conical hood is positioned at a higher horizontal level than the end of the feed pipe near the reactor vessel, while the conical hood is positioned at a lower horizontal level than the end of the water inlet pipe near the reactor vessel. This allows the top of the conical hood to be cleaned when only water is injected.

[0014] In a further embodiment, multiple sets of bottom-end stirring paddles are provided to achieve better mixing results.

[0015] In a further embodiment, the central rod rotates in the opposite direction to the rotating drum, which better turbulences the airflow and results in a better mixing effect.

[0016] In a further embodiment, the connecting rod, horizontal scraper, vertical scraper, oblique scraper, and transverse stirring shaft are arranged in two sets, and the two sets of transverse stirring shafts are arranged in an alternating linear array with equal spacing, which improves the mixing effect.

[0017] In a further embodiment, the reactor body is also equipped with an auxiliary component, which includes a filter plate. The filter plate is fixedly installed inside the end of the exhaust pipe near the lid. The bottom of the filter plate and the lid are flush, so that the horizontal scraper can simultaneously scrape off the impurities at the bottom of the filter plate.

[0018] In a further embodiment, an inclined stirring shaft is fixedly installed on the side wall of the inclined scraper.

[0019] In a further embodiment, two sets of inclined stirring shafts are provided to achieve better mixing results.

[0020] Compared with the prior art, this utility model provides an anti-wall scraper structure for an aqueous resin synthesis reactor, which has the following beneficial effects:

[0021] 1. The anti-wall-attachment scraper structure of this water-based resin synthesis reactor, in order to improve the material synthesis effect and prevent wall adhesion, is equipped with a rotating component. First, water and various materials are injected into the reactor body through the water inlet pipe and the feed pipe, respectively. The mixture inside the reactor body is heated in conjunction with the heating hood, air inlet pipe, and air outlet pipe. When the servo motor on the support is started, it drives the bottom stirring paddle to rotate and mix in conjunction with the central rod. When the servo motor is started, it drives the top stirring paddle to rotate and mix in conjunction with the rotating shaft, the driving bevel gear, the rotating drum, and the driven bevel gear. The rotating drum drives the conical hood and connecting rod to rotate synchronously, so that the horizontal scraper, vertical scraper, and oblique scraper rotate synchronously to prevent material from adhering to the wall. At the same time, it drives the rotation of multiple sets of horizontal stirring shafts arranged in a staggered manner to stir, thereby improving the material synthesis effect. Finally, the material is discharged through the discharge pipe, and the gas in the reaction is discharged through the exhaust pipe.

[0022] 2. The anti-wall scraper structure of this water-based resin synthesis reactor, in order to improve the practicality of the scraper structure itself, is equipped with auxiliary components. Together with the filter plate, it can prevent splashed materials from entering the exhaust pipe. When the horizontal scraper rotates, it will simultaneously scrape off the material attached to the bottom of the filter plate. When the oblique scraper rotates, it will drive the oblique stirring shaft to rotate synchronously, thereby better mixing and stirring the material at the bottom of the reactor body. In summary, it can improve the practicality of the scraper structure itself. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;

[0026] Figure 4 This is a schematic cross-sectional view of the reaction vessel body of this utility model;

[0027] Figure 5 This is a cross-sectional view of the reactor vessel from another perspective of this utility model;

[0028] Figure 6 This is a schematic diagram of the structural connection of the rotating component of this utility model.

[0029] Explanation of icon numbers:

[0030] 1. Frame; 21. Heating cover; 22. Inlet pipe; 23. Outlet pipe; 31. Reactor body; 32. Lid; 33. Water inlet pipe; 34. Feed pipe; 35. Discharge pipe; 36. Exhaust pipe;

[0031] 4. Rotating assembly; 41. Support; 42. Servo motor; 43. Center rod; 44. Bottom stirring paddle; 45. Servo motor; 46. Rotating shaft; 47. Driving bevel gear; 48. Rotating drum; 49. Driven bevel gear; 410. Top stirring paddle; 411. Conical cover; 412. Connecting rod; 413. Horizontal scraper; 414. Vertical scraper; 415. Angled scraper; 416. Horizontal stirring shaft;

[0032] 5. Auxiliary components; 51. Filter plate; 52. Inclined stirring shaft. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0035] Please see Figures 1-6 This utility model provides a technical solution:

[0036] A scraper structure for preventing wall adhesion in an aqueous resin synthesis reactor includes a frame 1. A heating hood 21 is fixedly installed inside the center of the frame 1. An air inlet pipe 22 is fixedly installed inside the top side wall of the heating hood 21 and is connected to a heating gas supply device. An air outlet pipe 23 is fixedly installed inside the bottom side wall of the heating hood 21 and is connected to a heat recovery device for better heating. A reactor body 31 is fitted inside the heating hood 21. A lid 32 is fixedly installed at the top of the reactor body 31. A water inlet pipe 33 and a feed pipe 34 are fixedly installed at both ends of the arc-shaped side wall of the reactor body 31, respectively, and are connected to a water supply device and a feed device, respectively. A discharge pipe 35 is fixedly installed at the bottom of the reactor body 31, and a material collection device is provided outside the discharge pipe 35. An exhaust pipe 36 is fixedly installed inside the lid 32 for better exhaust.

[0037] Specifically, when the operator needs to start the water supply and material supply equipment, a certain amount of water is injected into the reactor vessel 31 through the water inlet pipe 33. At the same time, various resin synthesis raw materials (such as monomers, initiators, etc.) are injected according to the ratio through the material inlet pipe 34. During this process, the heating system is started simultaneously: the air inlet pipe 22 is connected to the heating gas equipment, which delivers the hot gas flow to the inside of the heating cover 21. The heat is conducted to the reactor vessel 31 through the heating cover 21 to heat the internal mixture. The air outlet pipe 23 is connected to the heat recovery equipment, which recovers and reuses the heated low-temperature gas to form a heat circulation system, ensuring that the temperature inside the reactor vessel 31 rises uniformly to the preset reaction temperature (existing equipment of the prior art, which will not be described in detail).

[0038] In one embodiment of this utility model, a rotating assembly 4 is provided on the reactor body 31. The rotating assembly 4 includes a bracket 41. One end of the bracket 41 is fixedly connected to the top of the lid 32, and a servo motor 42 is fixedly installed on the other end of the bracket 41. A central rod 43 is fixedly installed at the output end of the servo motor 42, and a bottom stirring paddle 44 is fixedly installed on the outer side of the bottom end of the central rod 43. In addition, two sets of bottom stirring paddles 44 are provided to improve the mixing effect. A servo motor 45 is fixedly installed on the top of the lid 32, and a rotating shaft 46 is fixedly installed at the output end of the servo motor 45. A driving bevel gear 47 is fixedly mounted externally on the shaft 46. A rotating drum 48 is rotatably mounted inside the center of the drum cover 32 via a sealed bearing. A driven bevel gear 49 is fixedly mounted externally on the top of the rotating drum 48. The driving bevel gear 47 meshes with the driven bevel gear 49. A central rod 43 is sleeved inside the rotating drum 48. Furthermore, the rotation direction of the central rod 43 is opposite to that of the rotating drum 48, which better turbulences the airflow and improves the mixing effect. A top stirring paddle 410 and a conical cover 411 are fixedly mounted externally on the bottom of the rotating drum 48. The top stirring paddle 410 is located directly below the conical cover 411. Additionally, the conical cover... The conical hood 411 is positioned at a higher horizontal level than the end of the feed pipe 34 near the reactor vessel 31, while the conical hood 411 is positioned at a lower horizontal level than the end of the water inlet pipe 33 near the reactor vessel 31. This allows for cleaning of the top of the conical hood 411 when only water is injected. One end of a connecting rod 412 is fixedly connected to the inner wall of the conical hood 411, and a horizontal scraper 413 is fixedly installed at the other end of the connecting rod 412. The top of the horizontal scraper 413 slides against the bottom of the vessel cover 32, and a vertical scraper 414 is fixedly installed at the bottom of the horizontal scraper 413. One end of the blade 414 slides against the vertical arc-shaped inner wall of the reactor body 31. A slanted blade 415 is fixedly installed at the bottom of the vertical blade 414. One side wall of the slanted blade 415 slides against the slanted arc-shaped inner wall of the reactor body 31. A horizontal stirring shaft 416 is fixedly installed on the other side wall of the vertical blade 414. In addition, there are two sets of connecting rod 412, horizontal blade 413, vertical blade 414, slanted blade 415 and horizontal stirring shaft 416. The two sets of horizontal stirring shafts 416 are arranged in a staggered, equally spaced linear array, which makes the mixing effect better.

[0039] In this embodiment, the bracket 41 is fixed to the top of the lid 32. When the servo motor 42 mounted on it is powered on, its output shaft drives the central rod 43 to rotate. The two sets of bottom-end stirring paddles 44 at the bottom of the central rod 43 rotate accordingly, forming a vortex at the bottom of the reactor body 31. This initially mixes the water and materials, accelerating the dissolution of the raw materials. The servo motor 45 starts synchronously, and the rotating shaft 46 drives the active bevel gear 47 to rotate. Through meshing with the driven bevel gear 49, the rotating drum 48 rotates in the opposite direction (opposite to the rotation direction of the central rod 43). The top of the bottom of the rotating drum 48... The stirring paddle 410 rotates accordingly, creating turbulence at the top of the reactor and forming vertical convection with the bottom stirring paddle 44, enhancing the mixing effect. Simultaneously, the rotation of the rotating drum 48 drives the conical shroud 411 and connecting rod 412 to rotate, thereby synchronizing the wall-scraping mechanism composed of the horizontal scraper 413, vertical scraper 414, and oblique scraper 415. The top of the horizontal scraper 413 slides close to the bottom of the lid 32, scraping away material adhering to the bottom of the lid 32 to prevent solidification and scaling. The outer wall of the vertical scraper 414 is tightly fitted to the vertical arc-shaped inner wall of the reactor body 31, and with rotation... Material on the inner wall is scraped off to prevent accumulation. An inclined scraper 415 fits against the inclined, arc-shaped inner wall at the bottom of the reactor vessel 31. Simultaneously, the horizontal stirring shafts 416 are arranged in a staggered pattern. When the vertical scraper 414 rotates, it also drives multiple sets of horizontal stirring shafts 416 to rotate, stirring the material in more areas and eliminating dead zones. After the reaction is complete, the solenoid valve on the discharge pipe 35 is opened, and the synthesized water-based resin is discharged through the discharge pipe 35 to a collection container. Volatile gases generated during the reaction (such as reaction byproducts and unreacted monomer vapors) are discharged through the exhaust valve. The material is discharged through pipe 36. The filter plate 51 inside the exhaust pipe 36 acts as an interceptor to prevent splashed material particles from entering the exhaust pipe 36 and causing blockage. At this time, when the horizontal scraper 413 rotates to the bottom of the filter plate 51, it simultaneously scrapes off the material particles attached to the bottom of the filter plate 51, maintaining the air permeability of the filter plate 51. It is worth noting that a small amount of material particles will eventually pass through the filter plate 51 and enter the exhaust pipe 36 because the filter plate 51 is not solid and has filter holes. However, the small amount of material particles does not affect the overall structure and can be processed by subsequent equipment, which will not be elaborated here.

[0040] After the material is discharged, the equipment is cleaned by injecting clean water (such as tap water or deionized water) through the water inlet pipe 33. At the same time, the servo motor 42 and servo motor 45 are started to make the stirring paddle and wall scraping mechanism run again. Under the action of stirring and wall scraping, the residual material is washed away and dissolved in the water. The resulting wastewater and impurities are discharged through the discharge pipe 35 to the impurity collection equipment for further treatment, ensuring that the inside of the reactor is clean and preparing for the next production.

[0041] In one embodiment of this utility model, an auxiliary component 5 is also provided on the reactor body 31. The auxiliary component 5 includes a filter plate 51. The filter plate 51 is fixedly installed inside the end of the exhaust pipe 36 near the lid 32. The bottom of the filter plate 51 and the lid 32 are flush, so that the horizontal scraper 413 can simultaneously scrape off the impurities at the bottom of the filter plate 51. In addition, an inclined stirring shaft 52 is fixedly installed on the side wall of the inclined scraper 415. Furthermore, two sets of inclined stirring shafts 52 are provided to improve the mixing effect.

[0042] In this embodiment, the inclined stirring shaft 52 in the auxiliary component 5 is fixed to the side wall of the inclined scraper 415. When the inclined scraper 415 rotates, the inclined stirring shaft 52 rotates synchronously to assist in stirring the material in the central area at the bottom of the reactor body 31. During the cleaning stage, it can also accelerate the mixing of water and residual materials, improve cleaning efficiency. The cooperation between the filter plate 51 and the horizontal scraper 413 not only ensures smooth exhaust, but also realizes the function of automatically cleaning the filter plate 51, reducing manual maintenance costs and further improving the practicality and automation of the scraper structure.

[0043] All electrical components mentioned in this application are electrically connected to the PLC controller and 220V AC mains power. The PLC controller is a conventional and known device that can control the servo motor 42 and servo motor 45. Solenoid valves are installed on the air inlet pipe 22, air outlet pipe 23, water inlet pipe 33, feed pipe 34, discharge pipe 35, and exhaust pipe 36. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding, which are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. The supporting structures of the hydraulic drive structure mentioned in this application, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0044] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A wall-mounting scraper structure for an aqueous resin synthesis reactor, comprising a frame (1), wherein a heating cover (21) is fixedly installed inside the center of the frame (1), a reactor body (31) is fitted inside the heating cover (21), a lid (32) is fixedly installed at the top of the reactor body (31), and a water inlet pipe (33) and a feed pipe (34) are fixedly installed at both ends of the arc-shaped sidewall of the reactor body (31), characterized in that: A rotating assembly (4) is provided on the reactor vessel body (31), the rotating assembly (4) comprising: A bracket (41) is fixedly connected to one end of the top of the bucket lid (32), and a servo motor (42) is fixedly installed at the other end of the bracket (41). A center rod (43) is fixedly installed at the output end of the servo motor (42), and a bottom stirring paddle (44) is fixedly installed on the outside of the bottom end of the center rod (43). A servo motor (45) is fixedly installed on the top of the bucket cover (32). A rotating shaft (46) is fixedly installed at the output end of the servo motor (45). An active bevel gear (47) is fixedly installed on the outside of the rotating shaft (46). A rotating cylinder (48) is rotatably installed inside the center of the bucket cover (32) through a sealed bearing. A driven bevel gear (49) is fixedly installed on the outside of the top of the rotating cylinder (48). The active bevel gear (47) meshes with the driven bevel gear (49). A central rod (43) is sleeved inside the rotating cylinder (48). A top stirring paddle (410) and a conical cover (411) are fixedly installed on the outside of the bottom of the rotating cylinder (48). The top stirring paddle (410) is located directly below the conical cover (411). A connecting rod (412) is fixedly connected to one end of the inner wall of the conical cover (411). A horizontal scraper (413) is fixedly installed at the other end of the connecting rod (412). The top of the horizontal scraper (413) slides against the bottom of the barrel cover (32). A vertical scraper (414) is fixedly installed at the bottom of the horizontal scraper (413). The outer wall of one end of the vertical scraper (414) slides against the vertical arc-shaped inner wall of the reactor barrel (31). An oblique scraper (415) is fixedly installed at the bottom of the vertical scraper (414). The side wall of one end of the oblique scraper (415) slides against the oblique arc-shaped inner wall of the reactor barrel (31). A transverse stirring shaft (416) is fixedly installed on the side wall of the other end of the vertical scraper (414).

2. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 1, characterized in that: An air inlet pipe (22) is fixedly installed inside the top side wall of the heating cover (21), and an air outlet pipe (23) is fixedly installed inside the bottom side wall of the heating cover (21).

3. The anti-wall sticking scraper structure of a water-based resin synthesis reactor according to claim 2, characterized in that: The bottom of the reactor body (31) is fixedly equipped with a discharge pipe (35), and the inside of the lid (32) is fixedly equipped with an exhaust pipe (36).

4. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 1, characterized in that: The conical shroud (411) is at a higher horizontal height than the end of the feed pipe (34) near the reactor body (31), and the conical shroud (411) is at a lower horizontal height than the end of the water inlet pipe (33) near the reactor body (31).

5. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 1, characterized in that: The bottom stirring paddle (44) is provided in multiple sets.

6. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 1, characterized in that: The rotation direction of the central rod (43) is opposite to that of the rotating cylinder (48).

7. The wall-stripping scraper structure of a water-based resin synthesis reaction kettle according to claim 1, characterized in that: The connecting rod (412), horizontal scraper (413), vertical scraper (414), oblique scraper (415) and transverse stirring shaft (416) are provided in two sets, and the two sets of transverse stirring shafts (416) are arranged in an alternating linear array with equal spacing.

8. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 3, characterized in that: The auxiliary assembly (5) is arranged on the barrel body (31) of the reaction kettle, and comprises a filter plate (51).

9. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 8, characterized in that: The oblique stirring shaft (52) is arranged on the side wall of the oblique scraper (415).

10. The wall-stripping scraper structure of a water-based resin synthesis reactor according to claim 9, characterized in that: The oblique stirring shaft (52) is arranged in two groups.

Images