Mixing tank suitable for production of multiple types of polyurethane additives

Abstract

The utility model discloses a mixing tank suitable for producing multiple types of polyurethane assistants, which is characterized in that a tank cover is arranged on the upper surface of a tank body, a speed reducing motor is arranged in the center of the upper surface of the tank cover, a plurality of annular grooves are formed in the inner wall of the tank body, and annular racks are mounted in the annular grooves; the top end of the stirrer main shaft is connected with an output shaft of the speed reducing motor through a coupler, a plurality of rotating paddles are movably arranged in the main stirring paddle, and the outer ends of the rotating paddles are meshed with the annular rack through gears. The outer shaft rod drives the whole rotating paddle to rotate, a viscous polyurethane auxiliary agent or a solvent auxiliary agent can be used, the application range is greatly widened, and through cooperation of the main stirring paddle and the rotating paddle, the mixing performance can be improved.

Description

Technical Field

[0001] The utility model relates to the field of chemistry, in particular to mixing equipment, and specifically to a mixing tank for the production of various types of polyurethane additives. Background Art

[0002] Polyurethane additives are important raw materials in the rubber industry. Although the dosage is small, the role is very significant. Polyurethane elastomers cannot do without additives from synthesis to processing and application. According to the different functions, they can be divided into four categories: synthesis system, modification and operation system, vulcanization system and protection system. Moreover, the state and performance of various additives are also different, such as viscous additives, solvent-based additives, etc.

[0003] In the prior art, a single stirring paddle is used for stirring and mixing treatment inside the tank body of the mixing tank for the production of polyurethane additives. A single stirring paddle structure can achieve mixing for ordinary solvent-based additives, while for viscous additives, a single stirring paddle type mixing tank may lead to poor stirring effect, and it is necessary to replace it with a multi-stirring paddle type mixing tank, resulting in increased costs. Therefore, an improved technology is urgently needed to solve the above problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mixing tank for the production of various types of polyurethane additives. During the rotation of the main stirring paddle, through the meshing of the gear and the ring rack, the outer shaft rod rotates, thereby driving the entire rotating paddle to rotate through the outer shaft rod. Whether it is viscous polyurethane additives or solvent-based additives, they can all be used, greatly improving the scope of application. Moreover, through the cooperation of the main stirring paddle and the rotating paddle, the mixing performance can be improved, so as to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A mixing tank for the production of various types of polyurethane additives, comprising a tank body and a stirring mechanism;

[0006] A tank cover is arranged on the upper surface of the tank body. A reduction motor is arranged at the center position of the upper surface of the tank cover. Several feeding ports are also arranged on the upper surface of the tank cover. The outer periphery of the tank body is wrapped with a jacket. Several support legs are arranged at the bottom of the jacket. An outlet is arranged at the bottom of the tank body. Several annular grooves are opened on the inner wall of the tank body, and a ring rack is installed in the annular grooves;

[0007] The stirring mechanism includes a stirring shaft, a main stirring paddle and a rotating paddle. The top of the stirring shaft is connected to the output shaft of the reduction motor through a coupling;

[0008] The main stirring paddle includes a connecting sleeve and a U-shaped stirring paddle. The U-shaped stirring paddles are symmetrically arranged on both sides of the connecting sleeve. A number of guide sleeves are arranged at the outer ends of the U-shaped stirring paddles. Support sleeves are also arranged on both sides of the connecting sleeve, and the support sleeves correspond to the guide sleeves one by one. The connecting sleeve is sleeved on the main shaft of the stirrer and fastened by bolts.

[0009] The rotating paddle includes a cross bar, a connecting rod, an outer end rod and an inner end rod. There are two cross bars which are connected by a number of connecting rods. The two ends of the cross bar are respectively connected to the outer end rod and the inner end rod. An outer shaft rod is arranged at the middle position on the outer side of the outer end rod. The outer shaft rod passes through the corresponding guide sleeve and is equipped with a gear. The gear is movably arranged in the corresponding annular groove. The gear is supported on the upper surface of the corresponding annular rack and meshes with the annular rack. An inner shaft rod is arranged at the middle position near one end of the inner end rod close to the sleeve. The inner shaft rod is rotatably connected to the corresponding support sleeve.

[0010] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, a thermometer port, a pressure gauge port and a manhole are further arranged on the upper surface of the tank cover.

[0011] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, an air inlet is arranged at the lower part of the jacket, and an air outlet is arranged at the upper part of the jacket.

[0012] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, the outer end rod and the inner end rod are respectively connected to the corresponding cross bar by bolts.

[0013] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, copper sleeves are arranged inside both the guide sleeve and the support sleeve.

[0014] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, the annular rack is composed of four arc-shaped racks spliced together, and the annular rack is installed in the annular groove by bolts.

[0015] Preferably, for a mixing tank for the production of various types of polyurethane additives provided by the present utility model, a limiting plate is further arranged on the outer shaft rod, and the limiting plate is supported on the inner surface of the corresponding U-shaped stirring paddle.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] During the working process, the reduction motor drives the main stirring paddle to rotate. At the same time, during the rotation of the main stirring paddle, through the meshing of the gear and the ring rack, the outer shaft rod rotates, thereby driving the entire rotating paddle to rotate through the outer shaft rod. Whether it is a viscous polyurethane additive or a solvent-based additive, it can be used, greatly improving the scope of application. Moreover, through the cooperation of the main stirring paddle and the rotating paddle, the mixing performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the present invention;

[0019] Figure 2 For the appendix Figure 1 It is an enlarged structure schematic diagram of the marked position A in the appendix;

[0020] Figure 3 It is a schematic appearance structure diagram of the present invention.

[0021] In the figure: tank body 1, tank cover 2, reduction motor 3, feeding port 4, jacket 5, support leg 6, discharge port 7, annular groove 8, ring rack 9, stirring shaft 10, connecting sleeve 11, U-shaped stirring paddle 12, guide sleeve 13, support sleeve 14, cross bar 15, connecting rod 16, outer end rod 17, inner end rod 18, outer shaft rod 19, gear 20, inner shaft rod 21, thermometer port 22, pressure gauge port 23, manhole 24, air inlet 25, air outlet 26, limit plate 27. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention;

[0023] It should be noted that in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] Please refer to Figures 1-3 , the present invention provides a technical solution: a mixing tank for the production of multi-type polyurethane additives, including a tank body 1 and a stirring mechanism;

[0025] The upper surface of the tank body 1 is provided with a tank cover 2. At the central position of the upper surface of the tank cover 2, a reduction motor 3 is provided. On the upper surface of the tank cover 2, several feeding ports 4 are also provided. On the upper surface of the tank cover 2, a thermometer port 22, a pressure gauge port 23 and a manhole 24 are also provided. Through the thermometer port 22, the installation of a thermometer is realized. Through the pressure gauge port 23, the installation of a pressure gauge is realized. The manhole 24 facilitates the installation and maintenance personnel to enter the tank body 1 to install and disassemble the rotating paddle part. The periphery of the tank body 1 is wrapped with a jacket 5. The bottom of the jacket 5 is provided with several support legs 6. The lower part of the jacket 5 is provided with an air inlet 25. The upper part of the jacket 5 is provided with an air outlet 26 to respectively realize the entry and discharge of hot steam. The bottom of the tank body 1 is provided with a discharge port 7. The inner wall of the tank body 1 is provided with several annular grooves 8. An annular rack 9 is installed in the annular groove 8. The annular rack 9 is formed by splicing four arc-shaped racks. The annular rack 9 is installed in the annular groove 8 through bolts to ensure that the annular rack 9 can smoothly enter the tank body 1 and be installed in the annular groove 8;

[0026] The stirring mechanism includes a stirring shaft 10, a main stirring paddle and a rotating paddle. The top end of the stirring shaft 10 is connected to the output shaft of the reduction motor 3 through a coupling;

[0027] The main stirring paddle includes a connecting sleeve 11 and a U-shaped stirring paddle 12. The U-shaped stirring paddles 12 are symmetrically arranged on both sides of the connecting sleeve 11. Several guide sleeves 13 are arranged at the outer ends of the U-shaped stirring paddles 12. Support sleeves 14 are also arranged on both sides of the connecting sleeve 11. The support sleeves 14 correspond to the guide sleeves 13 one by one. Copper sleeves are arranged inside the guide sleeves 13 and the support sleeves 14 to ensure the smooth rotation of the outer shaft rod 19 and the inner shaft rod 21. The connecting sleeve 11 is sleeved on the stirring shaft 10 and fastened by bolts;

[0028] The rotating paddle includes cross bars 15, connecting rods 16, outer end rods 17 and inner end rods 18. There are two cross bars 15 which are connected by several connecting rods 16. The two ends of the cross bars 15 are respectively connected to the outer end rods 17 and the inner end rods 18. The outer end rods 17 and the inner end rods 18 are respectively connected to the corresponding cross bars 15 through bolts to realize the connection and disassembly of the cross bars 15 and the connecting rods 16 and the outer end rods 17 and the inner end rods 18, and at the same time ensure the installation of the entire rotating paddle. At the middle position on the outer side of the outer end rod 17, an outer shaft rod 19 is provided. The outer shaft rod 19 passes through the corresponding guide sleeve 13 and is provided with a gear 20. The gear 20 is movably arranged in the corresponding annular groove 8. The gear 20 is supported on the upper surface of the corresponding annular rack 9 and meshes with the annular rack 9. A limit plate 27 is also provided on the outer shaft rod 19. The limit plate 27 is supported on the inner side surface of the corresponding U-shaped stirring paddle 12, thus ensuring the stability of the rotating paddle. At the middle position of the inner end rod 18 close to the sleeve end, an inner shaft rod 21 is provided. The inner shaft rod 21 is rotatably connected to the corresponding support sleeve 14.

[0029] Installation method and working principle: First, install the arc-shaped rack in the annular groove 8 on the inner wall of the tank body 1 through bolts. The arc-shaped racks are spliced end to end to form an annular rack 9. Then, sleeved the connecting sleeve 11 with the U-shaped stirring paddle 12 on the lower part of the main shaft 10 of the stirrer and tighten the connection through bolts. Subsequently, connect the top end of the main shaft 10 of the stirrer to the output shaft of the reduction motor 3 through a coupling. Weld the cross bar 15 and the connecting rod 16 to form an assembly. Lift the tank cover 2 and place the main stirring paddle into the tank body 1. Then, the personnel enter the tank body 1 from the manhole 24, insert the inner shaft rod 21 of the inner end rod 18 into the support sleeve 14, pass the outer shaft rod 19 of the outer end rod 17 through the guide sleeve 13 of the U-shaped stirring paddle 12, and install the gear 20 on the outer end of the outer shaft rod 19. Subsequently, place the assembly of the cross bar 15 and the connecting rod 16 between the corresponding outer end rod 17 and inner end rod 18, and at the same time connect the outer end rod 17 and the inner end rod 18 to the end of the cross bar 15 through bolts to complete the assembly. Finally, the personnel can come out from the manhole 24. During use, add the polyurethane additive into the tank body 1 from the feeding port 4. According to different types, introduce steam from the steam inlet 25 into the jacket 5 to heat the inside of the tank body 1. Start the reduction motor 3. The reduction motor 3 drives the main shaft 10 of the stirrer to rotate. The main shaft 10 of the stirrer drives the main stirring paddle to rotate. During the rotation of the main stirring paddle, the gear 20 meshes with the annular rack 9, so that the outer shaft rod 19 rotates, and drives the entire rotating paddle to rotate through the outer shaft rod 19, thereby mixing the raw materials. The structure of the utility model is reasonable. During the working process, the reduction motor 3 drives the main stirring paddle to rotate. At the same time, during the rotation of the main stirring paddle, through the meshing of the gear 20 and the annular rack 9, the outer shaft rod 19 rotates, thereby driving the entire rotating paddle to rotate through the outer shaft rod 19. It can be used for both viscous polyurethane additives and solvent-based additives, greatly improving the scope of application. And through the cooperation of the main stirring paddle and the rotating paddle, the mixing performance can be improved.

[0030] Details not described in the present utility model are all well-known technologies to those skilled in the art.

[0031] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A mixing tank for the production of multi-type polyurethane additives, characterized in that: It includes a tank body (1) and a stirring mechanism; A tank cover (2) is arranged on the upper surface of the tank body (1). A speed reduction motor (3) is arranged at the center position of the upper surface of the tank cover (2). A plurality of feeding ports (4) are also arranged on the upper surface of the tank cover (2). The periphery of the tank body (1) is wrapped with a jacket (5). A plurality of support legs (6) are arranged at the bottom of the jacket (5). An outlet (7) is arranged at the bottom of the tank body (1). A plurality of annular grooves (8) are formed in the inner wall of the tank body (1), and an annular rack (9) is installed in the annular grooves (8); The stirring mechanism includes a stirrer main shaft (10), a main stirring paddle and a rotating paddle. The top end of the stirrer main shaft (10) is connected to the output shaft of the speed reduction motor (3) through a coupling; The main stirring paddle includes a connecting sleeve (11) and a U-shaped stirring paddle (12). The U-shaped stirring paddles (12) are symmetrically arranged on both sides of the connecting sleeve (11). A plurality of guide sleeves (13) are arranged at the outer ends of the U-shaped stirring paddles (12). Support sleeves (14) are also arranged on both sides of the connecting sleeve (11). The support sleeves (14) correspond to the guide sleeves (13) one by one. The connecting sleeve (11) is sleeved on the stirrer main shaft (10) and fastened by bolts; The rotating paddle includes a cross bar (15), a connecting rod (16), an outer end rod (17) and an inner end rod (18). There are two cross bars (15) which are connected by a plurality of connecting rods (16). The two ends of the cross bar (15) are respectively connected to the outer end rod (17) and the inner end rod (18). An outer shaft rod (19) is arranged at the middle position on the outer side of the outer end rod (17). The outer shaft rod (19) passes through the corresponding guide sleeve (13) and is provided with a gear (20). The gear (20) is movably arranged in the corresponding annular groove (8). The gear (20) is supported on the upper surface of the corresponding annular rack (9) and meshes with the annular rack (9). An inner shaft rod (21) is arranged at the middle position of the inner end rod (18) close to the sleeve end. The inner shaft rod (21) is rotatably connected to the corresponding support sleeve (14).

2. The mixing tank for the production of multi-type polyurethane additives according to claim 1, characterized in that: A thermometer port (22), a pressure gauge port (23) and a manhole (24) are also arranged on the upper surface of the tank cover (2).

3. The mixing tank for the production of multi-type polyurethane additives according to claim 1, wherein: An air inlet (25) is arranged at the lower part of the jacket (5), and an air outlet (26) is arranged at the upper part of the jacket (5).

4. A mixing tank for the production of multi-type polyurethane additives according to claim 1, characterized in that: The outer end rod (17) and the inner end rod (18) are respectively connected to the corresponding cross bar (15) by bolts.

5. The mixing tank for the production of multi-type polyurethane additives according to claim 1, characterized in that: Copper sleeves are arranged inside both the guide sleeve (13) and the support sleeve (14).

6. The mixing tank for the production of multi-type polyurethane additives according to claim 1, characterized in that: The annular rack (9) is formed by splicing four arc-shaped racks, and the annular rack (9) is installed in the annular groove (8) by bolts.

7. A mixing tank for the production of multi-type polyurethane additives according to claim 1, characterized in that: A limiting plate (27) is also arranged on the outer shaft rod (19), and the limiting plate (27) is supported on the inner side surface of the corresponding U-shaped stirring paddle (12).

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