Polyurethane reaction kettle

Abstract

The utility model discloses a polyurethane reaction kettle and relates to the technical field of reaction kettles. The stirring device comprises a stirring bin and a cover plate, the stirring bin is located below the cover plate, the bottom of the stirring bin is fixedly connected with a shell, the top of the cover plate is fixedly connected with a first motor, the output end of the first motor penetrates through the cover plate and is fixedly connected with a transmission rod, and the top of the transmission rod is connected with a first connecting plate in a penetrating mode. The first motor drives the transmission shaft to rotate, the transmission shaft drives the first connecting plate and the second connecting plate to rotate, and the first connecting plate and the second connecting plate are matched to drive the first spiral stirring rod and the second spiral stirring rod to rotate; a first spiral stirring rod and a second spiral stirring rod are matched to mix and stir polyurethane in the stirring bin, a second motor drives a gear to rotate, the gear and an annular tooth block are matched to drive a connecting block to move, the connecting block drives a scraping plate to move, and the scraping plate cleans polyurethane residues on the inner wall of the stirring bin.

Description

Technical Field

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

[0002] Polyurethane, short for polyurethane, is a high molecular weight compound. It comes in two main types: polyester and polyether. It can be used to make polyurethane plastics (mainly foam plastics), polyurethane fibers (known as spandex in China), polyurethane rubber and elastomers, etc. It is widely used in the fields of home furnishing, construction, daily necessities, transportation and home appliances. Polyurethane production uses a reaction vessel to mix the pre-mixed raw materials.

[0003] However, conventional polyurethane reactors have low mixing efficiency between the upper and lower layers during use. After the polyurethane reaction is complete, the polyurethane is discharged from the reactor, leaving a significant amount of polyurethane material adhering to the inner wall. To prevent residual slurry from affecting the quality of the next batch of slurry, the inner wall of the reactor needs to be cleaned. Currently, this is generally done manually by workers, which cannot meet today's market demands. Therefore, we provide a polyurethane reactor to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a polyurethane reactor that, through the combination of a spiral stirring rod and a scraper, solves the problems of low mixing efficiency between the upper and lower layers of materials during use, and excessive polyurethane material adhering to the inner wall of the reactor, which affects the quality of mixing the next batch of slurry.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a polyurethane reactor, including a stirring chamber and a cover plate. The stirring chamber is located below the cover plate. A shell is fixedly connected to the bottom of the stirring chamber. A first motor is fixedly connected to the top of the cover plate. The output end of the first motor passes through the cover plate and is fixedly connected to a transmission rod. A first connecting plate is connected to the top of the transmission rod, and a second connecting plate is fixedly connected to the bottom of the transmission rod.

[0007] A first spiral stirring rod is fixedly connected to the center of the bottom of the first connecting plate, and a second spiral stirring rod is fixedly connected to one end of the bottom of the first connecting plate. The bottoms of the first and second spiral stirring rods are fixedly connected to the second connecting plate. An annular toothed block is fixedly connected to the top of the stirring chamber. An annular slide rail is fixedly connected to the top of the annular toothed block. A pulley is slidably connected to the top of the annular slide rail. A connecting block is fixedly connected to the top of the pulley. A second motor is fixedly connected to the top of the connecting block on the side away from the pulley. The output end of the second motor passes through the connecting block and is fixedly connected to a gear. A scraper is fixedly connected to the bottom of the connecting block on the side away from the gear.

[0008] By adopting the above technical solution, the first motor is started, which drives the transmission shaft to rotate. The transmission shaft drives the first connecting plate and the second connecting plate to rotate. The first connecting plate and the second connecting plate cooperate to drive the first spiral stirring rod and the second spiral stirring rod to rotate. The cooperation of the first spiral stirring rod and the second spiral stirring rod mixes and stirs the polyurethane in the mixing chamber. The second motor is started, which drives the gear to rotate. The gear cooperates with the ring tooth block to drive the connecting block to move. The connecting block drives the pulley to move. The ring slide rail limits the movement trajectory of the pulley. The connecting block drives the scraper to move. The scraper cleans the polyurethane residue on the inner wall of the mixing chamber.

[0009] The present invention is further configured such that a sliding groove is provided at the bottom of the inner cavity of the mixing chamber, and a slider is fixedly connected to the bottom of the second connecting plate, the bottom of the slider being slidably connected to the sliding groove.

[0010] By adopting the above technical solution, the rotation of the second connecting plate drives the slider to rotate, the slider moves in the groove, the groove limits the movement trajectory of the slider, and the cooperation between the slider and the groove increases the stability of the second connecting plate when rotating.

[0011] The present invention is further configured such that a uniformly distributed heating plate is fixedly connected to the surface of the mixing chamber, and a temperature sensor is fixedly connected to the bottom of the cover plate, the temperature sensor being electrically connected to the heating plate.

[0012] By adopting the above technical solution, the heating plate heats the mixing chamber to provide the required temperature during use, and the temperature sensor monitors the temperature inside the mixing chamber in real time.

[0013] The present invention is further configured such that evenly distributed bolts are provided through the top of the cover plate, and threaded holes for use with the bolts are provided on the top of the housing. The cover plate and the housing are fixedly connected by the cooperation of the bolts and the threaded holes.

[0014] By adopting the above technical solution, the bolts and threaded holes are used to fix the cover plate and the shell when the reactor is in use, and the cover plate can also be removed for convenient later maintenance.

[0015] The present invention is further configured such that a control panel is provided on the outer wall of the housing, and the control panel is electrically connected to the first motor, the second motor, the heating plate and the temperature sensor respectively.

[0016] By adopting the above technical solution, the control panel controls the first motor, the second motor, the heating plate, and the temperature sensor respectively. The control panel, the temperature sensor, and the heating plate work together to display and adjust the temperature in the mixing chamber in real time, avoiding the impact of excessive temperature on the polyurethane.

[0017] The present invention is further configured such that a power supply is fixedly connected to the top of the cover plate, and a junction box for use with the power supply is fixedly connected to the top of the cover plate.

[0018] By adopting the above technical solution, the power supply provides power to the first motor, the second motor, the heating plate, the temperature sensor and the control panel respectively, and the junction box connects and transmits electrical energy.

[0019] The present invention is further configured such that the top of the cover plate is provided with an inlet, the bottom of the mixing chamber is connected to the shell through an outlet pipe, and a valve is fitted on the end of the outlet pipe away from the mixing chamber.

[0020] By adopting the above technical solution, the inlet supplies material to the mixing chamber, and the outlet pipe discharges material. The discharge of material is controlled by rotating the valve.

[0021] The present invention is further configured such that support legs are fixedly connected to all four sides of the bottom of the housing, and a base plate is fixedly connected to the bottom of the support legs, and the surface of the base plate is provided with anti-slip particles.

[0022] By adopting the above technical solution, the bottom plate increases the contact area between the legs and the support surface, and the anti-slip particles increase the friction between the bottom plate and the support surface, further improving the stability of the reactor when it is fixed.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model starts the first motor, which drives the transmission shaft to rotate. The transmission shaft drives the first connecting plate and the second connecting plate to rotate. The first connecting plate and the second connecting plate cooperate to drive the first spiral stirring rod and the second spiral stirring rod to rotate. The cooperation of the first spiral stirring rod and the second spiral stirring rod mixes and stirs the polyurethane in the mixing chamber. Then, the second motor starts the second motor, which drives the gear to rotate. The gear cooperates with the ring tooth block to drive the connecting block to move. The connecting block drives the pulley to move. The ring slide rail limits the movement trajectory of the pulley. The connecting block drives the scraper to move. The scraper cleans the polyurethane residue on the inner wall of the mixing chamber.

[0025] 2. In this utility model, the second connecting plate rotates to drive the slider to rotate. The slider moves in the groove, which limits the movement trajectory of the slider. The slider and the groove work together to increase the stability of the second connecting plate during rotation. The control panel controls the first motor, the second motor, the heating plate, and the temperature sensor respectively. The control panel, the temperature sensor, and the heating plate work together to display and adjust the temperature in the mixing chamber in real time, avoiding the effect of excessive temperature on the polyurethane. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0027] Figure 1 A three-dimensional structural view of a polyurethane reactor;

[0028] Figure 2 This is a structural diagram of a polyurethane reactor in which the cover plate is separated from the shell.

[0029] Figure 3 This is a diagram showing the connection structure of the first and second spiral stirring rods in a polyurethane reactor.

[0030] Figure 4 This is a top view of the stirring chamber in a polyurethane reactor.

[0031] Figure 5 This is a cross-sectional view of the stirring chamber in a polyurethane reactor;

[0032] Figure 6 In a polyurethane reactor Figure 5 Enlarged cross-sectional view of the partial structure at point A in the middle.

[0033] In the attached diagram: 1. Mixing chamber; 2. Cover plate; 3. Shell; 4. First motor; 5. Transmission rod; 6. First connecting plate; 7. Second connecting plate; 8. First spiral stirring rod; 9. Second spiral stirring rod; 10. Annular toothed block; 11. Annular slide rail; 12. Pulley; 13. Connecting block; 14. Second motor; 15. Gear; 16. Scraper; 17. Slide groove; 18. Slider; 19. Heating plate; 20. Temperature sensor; 21. Bolt; 22. Threaded hole; 23. Control panel; 24. Power supply; 25. Junction box; 26. Inlet; 27. Outlet pipe; 28. Valve; 29. ​​Support leg; 30. Base plate. Detailed Implementation

[0034] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Specific Implementation Example 1

[0036] Please see Figures 1-5 The present invention is a polyurethane reactor, including a stirring chamber 1 and a cover plate 2. The stirring chamber 1 is located below the cover plate 2. A shell 3 is fixedly connected to the bottom of the stirring chamber 1. A first motor 4 is fixedly connected to the top of the cover plate 2. The output end of the first motor 4 passes through the cover plate 2 and is fixedly connected to a transmission rod 5. A first connecting plate 6 is connected through the top of the transmission rod 5, and a second connecting plate 7 is fixedly connected to the bottom of the transmission rod 5.

[0037] A first spiral stirring rod 8 is fixedly connected to the center of the bottom of the first connecting plate 6. A second spiral stirring rod 9 is fixedly connected to one end of the bottom of the first connecting plate 6. The bottoms of the first spiral stirring rod 8 and the second spiral stirring rod 9 are fixedly connected to the second connecting plate 7. An annular toothed block 10 is fixedly connected to the top of the mixing chamber 1. An annular slide rail 11 is fixedly connected to the top of the annular toothed block 10. A pulley 12 is slidably connected to the top of the annular slide rail 11. A connecting block 13 is fixedly connected to the top of the pulley 12. A second motor 14 is fixedly connected to the top of the connecting block 13 on the side away from the pulley 12. The output end of the second motor 14 passes through the connecting block 13 and is fixedly connected to a gear 15. A scraper 16 is fixedly connected to the bottom of the connecting block 13 on the side away from the gear 15.

[0038] Specifically: The first motor 4 is started, which drives the transmission shaft to rotate. The transmission shaft drives the first connecting plate 6 and the second connecting plate 7 to rotate. The first connecting plate 6 and the second connecting plate 7 work together to drive the first spiral stirring rod 8 and the second spiral stirring rod 9 to rotate. The first spiral stirring rod 8 and the second spiral stirring rod 9 work together to mix and stir the polyurethane in the mixing chamber 1. The second motor 14 is started, which drives the gear 15 to rotate. The gear 15 works with the annular toothed block 10 to drive the connecting block 13 to move. The connecting block 13 drives the pulley 12 to move. The annular slide rail 11 limits the movement trajectory of the pulley 12. The connecting block 13 drives the scraper 16 to move. The scraper 16 cleans the polyurethane residue on the inner wall of the mixing chamber 1. Specific Implementation Example 2

[0040] Please see Figures 1-5Based on the first specific embodiment, a groove 17 is provided at the bottom of the inner cavity of the mixing chamber 1. A slider 18 is fixedly connected to the bottom of the second connecting plate 7, and the bottom of the slider 18 is slidably connected to the groove 17. Evenly distributed heating plates 19 are fixedly connected to the surface of the mixing chamber 1. A temperature sensor 20 is fixedly connected to the bottom of the cover plate 2, and the temperature sensor 20 is electrically connected to the heating plate 19. Evenly distributed bolts 21 are provided through the top of the cover plate 2. A threaded hole 22 for use with the bolts 21 is provided at the top of the housing 3. The cover plate 2 and the housing 3 are fixedly connected by the cooperation of the bolts 21 and the threaded hole 22. The outer wall is equipped with a control panel 23, which is electrically connected to the first motor 4, the second motor 14, the heating plate 19 and the temperature sensor 20 respectively. The top of the cover plate 2 is fixedly connected to a power supply 24, and the top of the cover plate 2 is fixedly connected to a junction box 25 for use with the power supply 24. The top of the cover plate 2 has an inlet 26. The bottom of the mixing chamber 1 is connected to the discharge pipe 27 through the shell 3. The end of the discharge pipe 27 away from the mixing chamber 1 is fitted with a valve 28. The bottom of the shell 3 is fixedly connected to the four sides of the bottom of the shell 3. The bottom of the support leg 29 is fixedly connected to the bottom plate 30, and the surface of the bottom plate 30 is provided with anti-slip particles.

[0041] Specifically: The rotation of the second connecting plate 7 drives the slider 18 to rotate, and the slider 18 moves within the slide groove 17. The slide groove 17 limits the movement trajectory of the slider 18. The cooperation between the slider 18 and the slide groove 17 increases the stability of the second connecting plate 7 during rotation. The heating plate 19 heats the mixing chamber 1 to provide the required temperature during use. The temperature sensor 20 monitors the temperature inside the mixing chamber 1 in real time. The bolts 21 and threaded holes 22 are used to fix the cover plate 2 and the shell 3 during use of the reactor. The cover plate 2 can also be removed for easy maintenance. The control panel 23 controls the first motor 4, the second motor 14, the heating plate 19, and the temperature sensor 20 respectively. The control panel 23, temperature sensor 20, and heating plate 19 work together to display and adjust the temperature inside the mixing chamber 1 in real time, preventing excessive temperature from affecting the polyurethane. The power supply 24 supplies power to the first motor, second motor, heating plate 19, temperature sensor 20, and control panel 23. The junction box 25 connects and transmits electrical energy. The inlet 26 supplies material to the mixing chamber 1, and the outlet pipe 27 discharges material. The rotating valve 28 controls the discharge of material through the outlet pipe 27. The base plate 30 increases the contact area between the support legs 29 and the supporting surface, and the anti-slip particles increase the friction between the base plate 30 and the supporting surface, further improving the stability of the reactor when it is fixed.

[0042] The working principle of this utility model is as follows: The first motor 4 is started, which drives the transmission shaft to rotate. The transmission shaft drives the first connecting plate 6 and the second connecting plate 7 to rotate. The first connecting plate 6 and the second connecting plate 7 cooperate to drive the first spiral stirring rod 8 and the second spiral stirring rod 9 to rotate. The cooperation of the first spiral stirring rod 8 and the second spiral stirring rod 9 mixes and stirs the polyurethane in the mixing chamber 1. The second motor 14 is started, which drives the gear 15 to rotate. The gear 15 cooperates with the annular toothed block 10 to drive the connecting block 13 to move. The connecting block 13 drives the pulley 12 to move. The annular slide rail 11 limits the movement trajectory of the pulley 12. The connecting block 13 drives the scraper 16 to move. The scraper 16 cleans the polyurethane residue on the inner wall of the mixing chamber 1.

[0043] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A polyurethane reactor, comprising a stirring chamber (1) and a cover plate (2), characterized in that: The mixing chamber (1) is located below the cover plate (2). The bottom of the mixing chamber (1) is fixedly connected to the shell (3). The top of the cover plate (2) is fixedly connected to the first motor (4). The output end of the first motor (4) passes through the cover plate (2) and is fixedly connected to the transmission rod (5). The top of the transmission rod (5) is connected to the first connecting plate (6). The bottom of the transmission rod (5) is fixedly connected to the second connecting plate (7). A first spiral stirring rod (8) is fixedly connected to the center of the bottom of the first connecting plate (6), and a second spiral stirring rod (9) is fixedly connected to one end of the bottom of the first connecting plate (6). The bottoms of the first spiral stirring rod (8) and the second spiral stirring rod (9) are fixedly connected to the second connecting plate (7). An annular toothed block (10) is fixedly connected to the top of the stirring chamber (1). An annular slide rail (11) is fixedly connected to the top of the annular toothed block (10). A pulley (12) is slidably connected to the top of the annular slide rail (11). A connecting block (13) is fixedly connected to the top of the pulley (12). A second motor (14) is fixedly connected to the side of the top of the connecting block (13) away from the pulley (12). The output end of the second motor (14) passes through the connecting block (13) and is fixedly connected to a gear (15). A scraper (16) is fixedly connected to the side of the bottom of the connecting block (13) away from the gear (15).

2. The polyurethane reactor according to claim 1, characterized in that: The bottom of the inner cavity of the mixing chamber (1) is provided with a sliding groove (17), and the bottom of the second connecting plate (7) is fixedly connected with a slider (18), and the bottom of the slider (18) is slidably connected to the sliding groove (17).

3. A polyurethane reactor according to claim 1, characterized in that: The surface of the mixing chamber (1) is fixedly connected with a uniformly distributed electric heating plate (19), and the bottom of the cover plate (2) is fixedly connected with a temperature sensor (20), which is electrically connected to the electric heating plate (19).

4. A polyurethane reactor according to claim 1, characterized in that: The top of the cover plate (2) is provided with evenly distributed bolts (21), and the top of the housing (3) is provided with threaded holes (22) for use with the bolts (21). The cover plate (2) and the housing (3) are fixedly connected by the cooperation of the bolts (21) and the threaded holes (22).

5. A polyurethane reactor according to claim 1, characterized in that: The outer wall of the housing (3) is provided with a control panel (23), which is electrically connected to the first motor (4), the second motor (14), the heating plate (19) and the temperature sensor (20).

6. A polyurethane reactor according to claim 1, characterized in that: A power supply (24) is fixedly connected to the top of the cover plate (2), and a junction box (25) for use with the power supply (24) is fixedly connected to the top of the cover plate (2).

7. A polyurethane reactor according to claim 1, characterized in that: The top of the cover plate (2) is provided with a feed inlet (26), and the bottom of the mixing chamber (1) is connected to the shell (3) by a discharge pipe (27). A valve (28) is fitted on the end of the discharge pipe (27) away from the mixing chamber (1).

8. A polyurethane reactor according to claim 1, characterized in that: The bottom of the housing (3) is fixedly connected to the four sides of the support legs (29), and the bottom of the support legs (29) is fixedly connected to the bottom plate (30). The surface of the bottom plate (30) is provided with anti-slip particles.

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