Premixing device for producing polyurea through vacuum constant-temperature heating
By designing a vacuum constant temperature heating premix device in the production of polyurea, the vertical rotation of the mixing plate and the driving of the active shaft are used to solve the problem of extended raw material stacking and dispersion time, and efficient production of polyurea is achieved.
Patent Information
- Application Number
- CN202421087589.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During the polyurea production process, raw materials are prone to accumulate and lack predispersion function, resulting in an extended dispersion time and affecting efficiency.
A premix device for producing polyurea with constant temperature heat is designed, including a reactor, a drive device, a rotating shaft, a stirring table and a mixing plate. Through the vertical rotation of the mixing plate and the driving of the driving shaft, the full premix of the raw materials can be achieved. .
It effectively reduces the production time of polyurea, improves production efficiency, and ensures full mixing and dispersion of raw materials.
Smart Images
Figure CN222287315U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyurea production, in particular to a premixing device for producing polyurea by vacuum constant temperature heating. Background Art
[0002] Polyurea is sprayed on site from semi-prepolymer, amino-terminated polyether, amine chain extender and other raw materials. It is highly hydrophobic and insensitive to environmental humidity. It can even be sprayed on water (or ice) to form a film. It can be normally constructed under extremely harsh environmental conditions and performs particularly well. The emergence of polyurea has completely broken the traditional concept of corrosion protection and protection, and set a higher standard for the material protection industry. The polyurea coating is flexible, rigid and colorful. It is dense, continuous and seamless, completely isolating the infiltration of moisture and oxygen in the air, and its corrosion protection and protection performance are unparalleled. It also has multiple functions such as wear resistance, waterproof, impact resistance, fatigue resistance, aging resistance, high temperature resistance, and nuclear radiation resistance. Therefore, it has a wide range of applications. No wonder engineers discover magical new uses for SPUA materials every day. Polyurea technology will provide a most advanced super-heavy anti-corrosion, waterproof, wear-resistant and decorative material as well as the most convenient and quickest construction for China's future large-scale infrastructure construction, such as chemical protection, pipeline anti-corrosion, marine anti-corrosion, tunnel waterproofing, dam maintenance, bridge protection, foundation reinforcement, roof planting, prop production, fender manufacturing, etc.
[0003] However, during production, the raw materials are easily accumulated during the feeding process, and the pre-dispersion function is not available, so the dispersion time needs to be extended, which affects the dispersion efficiency and is not convenient to use.
[0004] Therefore, a premixing device for producing polyurea by vacuum constant temperature heating is provided to reduce the time used for producing polyurea and improve production efficiency. Utility Model Content
[0005] Therefore, the purpose of the utility model is to provide a vacuum constant temperature heating premixing device for producing polyurea to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a premixing device for producing polyurea by vacuum constant temperature heating, which includes a reactor, a driving device is arranged on the outer side of the top of the reactor, a connecting end is arranged on one side of the driving device, and the other end of the connecting end passes through the top of the reactor and is located inside the reactor; the connecting end is connected to a rotating shaft at one end inside the reactor, a supporting frame is arranged inside the rotating shaft, and a plurality of pairs of mixing plates are arranged in the vertical direction of the supporting frame; a stirring table is arranged at the bottom of the rotating shaft, a stirring rod is arranged on the side wall of the stirring table, and a balancing cone is arranged on the bottom surface of the stirring table.
[0007] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, a feeding port is arranged on one side of the top of the reactor, the feeding port is connected to the reactor, and a sealing cover is arranged on the top of the feeding port.
[0008] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, a connecting shaft is arranged at the bottom of the connecting end, a connecting seat is arranged at the other end of the connecting shaft, a connecting plate is arranged at the other end of the connecting seat, a fixing plate is arranged at the bottom of the connecting plate, the size and shape of the fixing plate are the same as those of the connecting plate, and a driving shaft is arranged at the other end of the fixing plate.
[0009] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, a driving bevel gear is arranged at the bottom of the driving shaft, first driven bevel gears are meshed on both sides of the driving bevel gear, a first rotating rod is arranged at the other end of the first driven bevel gear, a first relay shaft is arranged below the first rotating rod, and second driven bevel gears are arranged at both ends of the first relay shaft.
[0010] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, the second driven bevel gear above the first relay shaft is meshed with the first driven bevel gear, the third driven bevel gear is meshed below the first relay shaft, the other end of the third driven bevel gear is provided with a second rotating rod, the top of the third driven bevel gear is meshed with a fourth driven bevel gear, the other end of the fourth driven bevel gear is provided with a second relay shaft, and the bottom end of the second relay shaft is flush with the bottom end of the support frame.
[0011] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, a fastening plate is arranged on the outer side of the first relay shaft, and a first bearing is arranged at the connection between the first relay shaft and the fastening plate; a fastening plate is also arranged on the outer side of the second relay shaft, and a first bearing is also arranged at the connection between the second relay shaft and the fastening plate.
[0012] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, wherein: the shape and size of the fastening plate are the same as the inner diameter of the support frame, and the fastening plate is fixed to the inside of the support frame; the first rotating rod passes through the support frame and the rotating shaft, and a synchronization rod is provided at the other end of the first rotating rod, and a mixing plate is provided at the other end of the synchronization rod, and a second bearing is provided at the connection between the first rotating rod and the support frame; a synchronization rod is also provided at the other end of the second rotating rod, and a mixing plate is provided at the other end of the synchronization rod, and a second bearing is also provided at the connection between the second rotating rod and the support frame.
[0013] As a preferred solution of the vacuum constant temperature heating premixing device for producing polyurea described in the utility model, the mixing plate at one end of the first rotating rod and the mixing plate at one end of the second rotating rod are perpendicular to each other.
[0014] Beneficial effects of the utility model:
[0015] 1. The utility model provides a premixing device for producing polyurea by vacuum constant temperature heating. The premixing inside the reactor is more complete by arranging a mixing plate to rotate synchronously with the rotating shaft and the rotating directions are perpendicular to each other.
[0016] 2. The utility model provides a premixing device for producing polyurea by vacuum constant temperature heating. The rotation of a driving shaft can drive the rotation of multiple mixing plates, and the space inside the reactor is smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0018] Figure 1 This is a schematic diagram of the overall structure of a premixing device for producing polyurea by vacuum constant temperature heating according to the utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of a premixing device for producing polyurea by vacuum constant temperature heating according to the utility model;
[0020] Figure 3 This is a bottom view of the internal structure of a premixing device for producing polyurea by vacuum constant temperature heating according to the utility model;
[0021] Figure 4 The utility model is a schematic diagram of the structure of the driving shaft of a premixing device for producing polyurea by vacuum constant temperature heating.
[0022] Description of reference numerals:
[0023] 1. Reactor; 11. Feeding port; 12. Sealing cover; 2. Driving device; 21. Connecting end; 22. Connecting shaft; 23. Connecting seat; 24. Connecting plate; 25. Fixing plate; 3. Rotating shaft; 31. Stirring table; 32. Stirring rod; 33. Balancing cone; 4. Driving shaft; 41. Driving bevel gear; 42. First driven bevel gear; 43. First rotating rod; 44. First relay shaft; 45. Second driven bevel gear; 46. Third driven bevel gear; 47. Second rotating rod; 48. Fourth driven bevel gear; 49. Second relay shaft; 5. Fastening plate; 51. First bearing; 6. Synchronizing rod; 61. Mixing plate; 62. Second bearing; 7. Support frame. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0025] Reference Figure 1-4 , a premixing device for producing polyurea by vacuum constant temperature heating provided by the utility model, the premixing device for producing polyurea by vacuum constant temperature heating comprises a reactor 1, a driving device 2 is arranged on the outer side of the top of the reactor 1, a connecting end 21 is arranged on one side of the driving device 2, the other end of the connecting end 21 passes through the top of the reactor 1 and is located inside the reactor 1; the connecting end 21 is connected to a rotating shaft 3 at one end inside the reactor 1, a supporting frame 7 is arranged inside the rotating shaft 3, and a plurality of pairs of mixing plates 61 are arranged in the vertical direction of the supporting frame 7; a stirring table 31 is arranged at the bottom of the rotating shaft 3, a stirring rod 32 is arranged on the side wall of the stirring table 31, and a balancing cone 33 is arranged on the bottom surface of the stirring table 31.
[0026] Specifically, a driving device 2 is provided on the outer side of the top of the reactor 1, a connecting end 21 is provided on one side of the driving device 2, the other end of the connecting end 21 passes through the top of the reactor 1, is located inside the reactor 1, is fixed to the top of the reactor 1 by the driving device 2, and drives the connecting end 21 to rotate inside the reactor 1; the connecting end 21 is connected to a rotating shaft 3 at one end inside the reactor 1, a supporting frame 7 is provided inside the rotating shaft 3, and the supporting frame 7 is driven to rotate inside the reactor 1 through the rotation of the rotating shaft 3; a plurality of pairs of mixing plates 61 are provided in the vertical direction of the supporting frame 7, and the polyurea raw materials are premixed through the mixing plates 61; a stirring table 31 is provided at the bottom of the rotating shaft 3, a stirring rod 32 is provided on the side wall of the stirring table 31, and a balancing cone 33 is provided on the bottom surface of the stirring table 31, the raw materials are stirred through the stirring rod 32, and the rotation balance of the rotating shaft 3 is maintained through the balancing cone 33.
[0027] A feeding port 11 is provided on one side of the top of the reactor 1 . The feeding port 11 is connected to the reactor 1 , and a sealing cover 12 is provided on the top of the feeding port 11 .
[0028] Specifically, the raw materials are added into the reactor 1 through the feeding port 11 , and the feeding port 11 is sealed by the sealing cover 12 .
[0029] A connecting shaft 22 is provided at the bottom of the connecting end 21, a connecting seat 23 is provided at the other end of the connecting shaft 22, a connecting plate 24 is provided at the other end of the connecting seat 23, a fixing plate 25 is provided at the bottom of the connecting plate 24, and the size and shape of the fixing plate 25 are the same as those of the connecting plate 24, and a driving shaft 4 is provided at the other end of the fixing plate 25.
[0030] Specifically, the connecting plate 24 is driven to rotate through the connecting end 21, the connecting shaft 22 and the connecting seat 23, and the rotation of the connecting plate 24 drives the fixed plate 25 to rotate synchronously, thereby realizing the rotation of the driving shaft 4. Through the connection between the connecting plate 24 and the fixed plate 25, the connecting end 21 is indirectly connected to the driving shaft 4, and the connection is made more stable.
[0031] A driving bevel gear 41 is provided at the bottom of the driving shaft 4, and first driven bevel gears 42 are meshed on both sides of the driving bevel gear 41. A first rotating rod 43 is provided at the other end of the first driven bevel gear 42, and a first relay shaft 44 is provided below the first rotating rod 43. Second driven bevel gears 45 are provided at both ends of the first relay shaft 44.
[0032] Specifically, the rotation of the driving shaft 4 drives the driving bevel gear 41 to rotate synchronously, thereby driving the meshing first driven bevel gear 42 to rotate, and driving the first rotating rod 43 to rotate.
[0033] The second driven bevel gear 45 above the first relay shaft 44 is meshed with the first driven bevel gear 42, the third driven bevel gear 46 is meshed below the first relay shaft 44, the other end of the third driven bevel gear 46 is provided with a second rotating rod 47, the top of the third driven bevel gear 46 is meshed with a fourth driven bevel gear 48, the other end of the fourth driven bevel gear 48 is provided with a second relay shaft 49, and the bottom end of the second relay shaft 49 is flush with the bottom end of the support frame 7.
[0034] Specifically, the first driven bevel gear 42 drives the meshing second driven bevel gear 45 to rotate, and the rotation of the second driven bevel gear 45 causes the first relay shaft 44 to rotate synchronously; the rotation of the second driven bevel gear 45 also drives the third driven bevel gear 46 to rotate, driving the second rotating rod 47 to rotate, and the rotation of the second rotating rod 47 drives the meshing fourth driven bevel gear 48 to rotate, causing the second relay shaft 49 to rotate synchronously, thereby driving the mixing table 31 to rotate, so that the mixing rod 32 stirs the raw materials.
[0035] A fastening plate 5 is provided on the outer side of the first relay shaft 44 , and a first bearing 51 is provided at the connection between the first relay shaft 44 and the fastening plate 5 ; a fastening plate 5 is also provided on the outer side of the second relay shaft 49 , and a first bearing 51 is also provided at the connection between the second relay shaft 49 and the fastening plate 5 .
[0036] Specifically, the first relay shaft 44 and the second rotating rod 47 are both fixed inside the support frame 7 through the fastening plate 5 ; the first relay shaft 44 and the second rotating rod 47 are both independently rotated with the fastening plate 5 through the first bearing 51 .
[0037] The shape and size of the fastening plate 5 are the same as the inner diameter of the support frame 7, and the fastening plate 5 is fixed to the inside of the support frame 7; the first rotating rod 43 passes through the support frame 7 and the rotating shaft 3, and the other end of the first rotating rod 43 is provided with a synchronization rod 6, and the other end of the synchronization rod 6 is provided with a mixing plate 61, and a second bearing 62 is provided at the connection between the first rotating rod 43 and the support frame 7; the other end of the second rotating rod 47 is also provided with a synchronization rod 6, and the other end of the synchronization rod 6 is provided with a mixing plate 61, and a second bearing 62 is also provided at the connection between the second rotating rod 47 and the support frame 7.
[0038] Specifically, the mixing plate 61 is fixed on the first rotating rod 43 and the second rotating rod 47 through the synchronization rod 6. The synchronization rod 6 and the mixing plate 61 rotate synchronously through the rotation of the first rotating rod 43 and the second rotating rod 47. The rotation direction of the mixing plate 61 is perpendicular to the rotation direction of the rotating shaft 3, thereby increasing the fluidity of the raw material. The synchronization rod 6 can rotate independently from the support frame 7 through the second bearing 62.
[0039] The mixing plate 61 at one end of the first rotating rod 43 and the mixing plate 61 at one end of the second rotating rod 47 are perpendicular to each other.
[0040] Specifically, the pair of mixing plates 61 are perpendicular to each other, so that the mixing plates 61 increase the contact area with the raw materials.
[0041] During use, the raw materials are added into the reactor 1 from the feeding port 11, and the sealing cover 12 seals the feeding port 11; the driving device 2 drives the connecting end 21 to rotate, driving the rotating shaft 3 to rotate, and preliminarily stirs the raw materials. During the rotation of the connecting end 21, the mixing plate 61 also rotates synchronously, and the rotation direction of the mixing plate 61 is perpendicular to the rotation direction of the connecting end 21, thereby increasing the contact area with the raw materials and completing the premixing of the raw materials.
[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A premixing device for producing polyurea by vacuum constant temperature heating, comprising a reaction kettle (1), characterized in that: A driving device (2) is arranged on the outside of the top of the reactor (1); a connecting end (21) is arranged on one side of the driving device (2); the other end of the connecting end (21) penetrates the top of the reactor (1) and is located inside the reactor (1); a rotating shaft (3) is connected to one end of the connecting end (21) inside the reactor (1); a supporting frame (7) is arranged inside the rotating shaft (3); a plurality of pairs of mixing plates (61) are arranged in a vertical direction of the supporting frame (7); a stirring platform (31) is arranged at the bottom of the rotating shaft (3); a stirring rod (32) is arranged on the side wall of the stirring platform (31); and a balancing cone (33) is arranged on the bottom surface of the stirring platform (31).
2. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 1, characterized in that: A feeding port (11) is provided on one side of the top of the reaction kettle (1), the feeding port (11) is connected to the reaction kettle (1), and a sealing cover (12) is provided on the top of the feeding port (11).
3. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 1, characterized in that: A connecting shaft (22) is provided at the bottom of the connecting end (21), a connecting seat (23) is provided at the other end of the connecting shaft (22), a connecting plate (24) is provided at the other end of the connecting seat (23), a fixing plate (25) is provided at the bottom of the connecting plate (24), the fixing plate (25) has the same size and shape as the connecting plate (24), and a driving shaft (4) is provided at the other end of the fixing plate (25).
4. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 3, characterized in that: A driving bevel gear (41) is provided at the bottom of the driving shaft (4), first driven bevel gears (42) are meshed on both sides of the driving bevel gear (41), a first rotating rod (43) is provided at the other end of the first driven bevel gear (42), a first relay shaft (44) is provided below the first rotating rod (43), and second driven bevel gears (45) are provided at both ends of the first relay shaft (44).
5. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 4, characterized in that: The second driven bevel gear (45) above the first relay shaft (44) is meshed with the first driven bevel gear (42), the third driven bevel gear (46) is meshed below the first relay shaft (44), the other end of the third driven bevel gear (46) is provided with a second rotating rod (47), the top of the third driven bevel gear (46) is meshed with a fourth driven bevel gear (48), the other end of the fourth driven bevel gear (48) is provided with a second relay shaft (49), and the bottom end of the second relay shaft (49) is flush with the bottom end of the support frame (7).
6. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 5, characterized in that: A fastening plate (5) is provided on the outer side of the first relay shaft (44), and a first bearing (51) is provided at the connection between the first relay shaft (44) and the fastening plate (5); a fastening plate (5) is also provided on the outer side of the second relay shaft (49), and a first bearing (51) is also provided at the connection between the second relay shaft (49) and the fastening plate (5).
7. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 6, characterized in that: The shape and size of the fastening plate (5) are the same as the inner diameter of the support frame (7), and the fastening plate (5) is fixed to the inside of the support frame (7); the first rotating rod (43) passes through the support frame (7) and the rotating shaft (3); the other end of the first rotating rod (43) is provided with a synchronization rod (6), the other end of the synchronization rod (6) is provided with a mixing plate (61), and a second bearing (62) is provided at the connection between the first rotating rod (43) and the support frame (7); the other end of the second rotating rod (47) is also provided with a synchronization rod (6), the other end of the synchronization rod (6) is provided with a mixing plate (61), and a second bearing (62) is also provided at the connection between the second rotating rod (47) and the support frame (7).
8. A premixing device for producing polyurea by vacuum constant temperature heating according to claim 7, characterized in that: The mixing plate (61) at one end of the first rotating rod (43) and the mixing plate (61) at one end of the second rotating rod (47) are perpendicular to each other.