Raw material blending kettle for producing polymer polyol

Abstract

The utility model discloses a raw material blending kettle for polymer polyol production, and relates to the field of polyol reaction kettles, the raw material blending kettle comprises a bottom plate, the upper side of the bottom plate is fixedly connected with a reaction kettle, the lower side of the reaction kettle is provided with a discharge hole, the inner wall of the discharge hole is fixedly connected with a discharge pipe, and the discharge pipe is fixedly connected with the bottom plate. A mixing motor is fixedly connected to the upper side of the reaction kettle, a mixing mechanism is fixedly connected to the inner wall of the reaction kettle, and a knocking mechanism is fixedly connected to the upper side of the bottom plate. According to the reaction kettle, the mixing mechanism is arranged, and the mixing motor is used as a power source to drive the planetary gear mechanism, so that the driving stirring shaft is positioned at the center for stirring, and the driven stirring shaft continuously moves by taking the driving stirring shaft as the center while rotating, so that raw materials in the reaction kettle are fully mixed; materials are prevented from winding the rod, violent shaking of the reaction kettle is avoided, and the personal safety of surrounding workers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of polyol reaction vessels, and in particular to a raw material preparation vessel for the production of polymer polyols. Background Technology

[0002] Polyether polyols are environmentally friendly chemical raw materials, mainly used in the manufacture of flexible, rigid, and semi-rigid polyurethane foams. They are widely used in refrigerators, freezers, refrigerated trucks, heat insulation boards, pipe insulation, and other fields. They can also be used in the manufacturing process of various industrial products, such as detergents, defoamers, emulsifiers, wetting agents, antistatic agents, and dispersants, all of which use polyether polyols as the main raw material. In general, when polyether polyols are used in the manufacturing process, they need to be connected to other raw materials and placed in a reaction vessel for stirring and heating to achieve a polymerization reaction. Polyether polyols are polymerized with propylene oxide or ethylene oxide monomers as initiators.

[0003] Existing raw material mixing tanks for polymer polyol production have some shortcomings. Polymer polyols are viscous liquids, which not only make it difficult to discharge the raw materials, but also cause them to adhere to the stirring rod and the inner wall of the mixing tank during stirring, resulting in rod entanglement and causing violent shaking of the mixing tank. Furthermore, the viscous polymer polyols also adhere to the inner wall of the mixing tank. If the mixing tank is not cleaned in time, the residual polymer polyols will affect the next production of polymer polyols, leading to quality problems in the next batch of polymer polyols. Therefore, a raw material mixing tank for polymer polyol production is needed to solve the above-mentioned shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a raw material mixing reactor for the production of polymer polyols, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a raw material mixing vessel for polymer polyol production, comprising a bottom plate, a reaction vessel fixedly connected to the upper side of the bottom plate, a discharge hole opened on the lower side of the reaction vessel, a discharge pipe fixedly connected to the inner wall of the discharge hole, a mixing motor fixedly connected to the upper side of the reaction vessel, a mixing mechanism fixedly connected to the inner wall of the reaction vessel, and a striking mechanism fixedly connected to the upper side of the bottom plate;

[0006] The mixing mechanism includes a mounting cover fixedly connected to the inner wall of the reactor. The output end of the mixing motor passes through the inner top wall of the reactor and is fixedly connected to an active stirring shaft. A driving gear is fixedly connected to the surface of the active stirring shaft. A driven stirring shaft is provided below the mounting cover. A driven gear is fixedly connected to the surface of the driven stirring shaft. The driving gear meshes with the driven gear. A transmission gear ring is fixedly connected to the inner wall of the mounting cover. The transmission gear ring meshes with the driven gear.

[0007] Preferably, the inner wall of the mounting cover is rotatably connected to a partition plate. The upper side of the partition plate has an active mounting hole, the inner wall of which is rotatably connected to the surface of the active stirring shaft. The upper side of the partition plate has a driven mounting hole, the inner wall of which is rotatably connected to the surface of the driven stirring shaft. The upper side of the partition plate is rotatably connected to the lower side of the active gear, the upper side of the partition plate is rotatably connected to the lower side of the driven gear, and the upper side of the partition plate is rotatably connected to the lower side of the transmission gear ring.

[0008] Preferably, the striking mechanism includes a mounting box fixedly connected to the upper side of the base plate, a striking motor fixedly connected to the rear side of the mounting box, a support clamp fixedly connected to the inner bottom wall of the mounting box, a rotating disk slidably connected to the inner wall of the support clamp, the output end of the striking motor fixedly connected to the rear side of the rotating disk, and a lever fixedly connected to the front side of the rotating disk.

[0009] Preferably, the striking mechanism further includes a fixed plate fixedly connected to the inner wall of the mounting box, a reciprocating gear rotatably connected to the rear side of the fixed plate, a driving rack slidably connected to the rear side of the fixed plate, the driving rack meshing with the reciprocating gear, a limiting ring fixedly connected to the rear side of the driving rack, the inner wall of the limiting ring slidably connected to the surface of the lever, and a driven rack slidably connected to the rear side of the fixed plate, the driven rack meshing with the reciprocating gear.

[0010] Preferably, the striking mechanism further includes striking components fixedly connected to the inner wall of the mounting box. The number of striking components is three, and the three striking components are arranged in a linear array on the inner wall of the mounting box. Each striking component includes a support plate fixedly connected to the inner wall of the mounting box. A limiting window is opened on the upper side of the support plate. A connecting strip is fixedly connected to the upper side of the active rack. The inner wall of the limiting window is slidably connected to the surface of the connecting strip.

[0011] Preferably, the striking assembly further includes a mounting plate that is slidably connected to the upper side of the support plate. The surface of the mounting plate is fixedly connected to the surface of the connecting strip. A mounting rod is fixedly connected to the side of the mounting plate away from the connecting strip. An arc-shaped striking plate is fixedly connected to the other end of the mounting rod. A return spring is fixedly connected to the side of the mounting plate near the connecting strip. The other end of the return spring is fixedly connected to the inner wall of the mounting box.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, a mixing mechanism is set up, and a mixing motor is used as a power source. The mixing motor drives the active stirring rod to rotate at the center position of the reactor. While the active stirring shaft is rotating, the driven gear revolves around the active gear and rotates on its own axis under the transmission of the active gear and the transmission gear ring. This drives the driven stirring shaft to rotate in the opposite direction to the active stirring shaft. At the same time, the driven stirring shaft moves continuously around the active stirring shaft as the center, which makes the raw materials in the reactor fully mixed while preventing the material from getting tangled in the rod, avoiding violent shaking of the reactor, and ensuring the personal safety of the surrounding personnel.

[0014] 2. In this utility model, a striking mechanism is set up, using a striking motor as a power source. The striking motor drives the rotating disk to rotate. When the rotating disk rotates, the lever pushes the connecting ring to move. The movement of the connecting ring drives the active rack to move. Under the transmission of the reciprocating gear and the driven rack, the active rack is driven to make reciprocating motion in the left and right directions as the rotating disk rotates. The movement of the active rack drives the connecting strip to move, so that the arc-shaped striking plate covered with sponge blocks continuously strikes the surface of the reactor, shaking off the residual material on the inner wall of the reactor, making it convenient for the staff to clean the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the reaction vessel in an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of the reaction vessel in an embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional view of the mounting cover in an embodiment of the present utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the striking mechanism in an embodiment of the present utility model;

[0021] Figure 6 This is a cross-sectional view of the mounting box in an embodiment of the present invention;

[0022] Figure 7This is a three-dimensional structural diagram of the upper side of the mounting box in an embodiment of this utility model;

[0023] Figure 8 This is a three-dimensional structural diagram of the rotating disk (sectional view of the mounting box) in an embodiment of the present utility model;

[0024] Figure 9 This is a three-dimensional structural schematic diagram of the reciprocating gear (sectional view of the mounting box) in an embodiment of this utility model;

[0025] Figure 10 This is a three-dimensional structural diagram of the limiting ring (sectional view of the mounting box) in an embodiment of this utility model.

[0026] In the diagram: 1. Base plate; 2. Reactor; 3. Mixing motor; 4. Discharge pipe; 5. Active stirring shaft; 6. Driven stirring shaft; 7. Mounting cover; 8. Driven gear; 9. Driven gear; 10. Transmission gear ring; 11. Partition plate; 12. Mounting box; 13. Striking motor; 14. Support clamp; 15. Rotary disc; 16. Lever; 17. Reciprocating gear; 18. Driven rack; 19. Limiting ring; 20. Driven rack; 21. Connecting strip; 22. Support plate; 23. Limiting window; 24. Mounting plate; 25. Return spring; 26. Mounting rod; 27. Arc-shaped striking plate; 28. Fixing plate. Detailed Implementation

[0027] 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.

[0028] Example: Reference Figures 1-10 The raw material mixing vessel for producing polymer polyols shown includes a bottom plate 1, a reaction vessel 2 fixedly connected to the upper side of the bottom plate 1, a discharge hole opened on the lower side of the reaction vessel 2, a discharge pipe 4 fixedly connected to the inner wall of the discharge hole, a mixing motor 3 fixedly connected to the upper side of the reaction vessel 2, a mixing mechanism fixedly connected to the inner wall of the reaction vessel 2, and a striking mechanism fixedly connected to the upper side of the bottom plate 1.

[0029] The mixing mechanism includes a mounting cover 7 fixedly connected to the inner wall of the reactor 2. The output end of the mixing motor 3 passes through the inner top wall of the reactor 2 and is fixedly connected to an active stirring shaft 5. An active gear 8 is fixedly connected to the surface of the active stirring shaft 5. A driven stirring shaft 6 is provided below the mounting cover 7. A driven gear 9 is fixedly connected to the surface of the driven stirring shaft 6. The active gear 8 meshes with the driven gear 9. A transmission gear ring 10 is fixedly connected to the inner wall of the mounting cover 7. The transmission gear ring 10 meshes with the driven gear 9.

[0030] With the above structure, the base plate 1 represents the actual ground, the reaction vessel 2 is the raw material preparation vessel, the end of the discharge pipe 4 is equipped with a valve, which can be opened to discharge the material after the raw material preparation is completed. When the mixing motor 3 is running, it drives the active stirring shaft 5 to rotate. The mounting cover 7 provides a fulcrum for the installation of the active gear 8 and the driven gear 9. The active gear 8, the driven gear 9 and the transmission gear ring 10 form a planetary gear mechanism. Since the installation of the transmission gear ring 10 and the active gear 8 are subject to certain constraints, the driven gear 9 revolves around the active gear 8 while rotating on its own axis.

[0031] Preferably, a partition plate 11 is rotatably connected to the inner wall of the mounting cover 7. An active mounting hole is provided on the upper side of the partition plate 11, and the inner wall of the active mounting hole is rotatably connected to the surface of the active stirring shaft 5. A driven mounting hole is provided on the upper side of the partition plate 11, and the inner wall of the driven mounting hole is rotatably connected to the surface of the driven stirring shaft 6. The upper side of the partition plate 11 is rotatably connected to the lower side of the active gear 8, the upper side of the partition plate 11 is rotatably connected to the lower side of the driven gear 9, and the upper side of the partition plate 11 is rotatably connected to the lower side of the transmission gear ring 10.

[0032] By setting the partition plate 11, the raw materials are separated from the planetary gear mechanism, thus preventing the raw materials from interfering with the normal operation of the planetary gear mechanism.

[0033] Preferably, the striking mechanism includes a mounting box 12 fixedly connected to the upper side of the base plate 1, a striking motor 13 fixedly connected to the rear side of the mounting box 12, a support clamp 14 fixedly connected to the inner bottom wall of the mounting box 12, a rotating disk 15 slidably connected to the inner wall of the support clamp 14, the output end of the striking motor 13 fixedly connected to the rear side of the rotating disk 15, and a lever 16 fixedly connected to the front side of the rotating disk 15.

[0034] The mounting box 12 protects other internal parts. The striking motor 13 is used as the power source. The support clamp 14 has an arc-shaped surface that can fit against the surface of the rotating disk 15 to provide certain support for the rotating disk 15. When the striking motor 13 is running, it drives the rotating disk to rotate. The rotation of the rotating disk 15 drives the lever 16 to move.

[0035] Preferably, the striking mechanism further includes a fixed plate 28 fixedly connected to the inner wall of the mounting box 12. A reciprocating gear 17 is rotatably connected to the rear side of the fixed plate 28. A driving rack 18 is slidably connected to the rear side of the fixed plate 28. The driving rack 18 meshes with the reciprocating gear 17. A limiting ring 19 is fixedly connected to the rear side of the driving rack 18. The inner wall of the limiting ring 19 is slidably connected to the surface of the lever 16. A driven rack 20 is slidably connected to the rear side of the fixed plate 28. The driven rack 20 meshes with the reciprocating gear 17.

[0036] By setting a fixed plate 28 to provide a fulcrum for the installation of reciprocating gear 17, driving rack 18 and driven rack 20, when the rotating disk 15 rotates, due to the restriction of the limiting ring 19, the driving rack 18 can achieve reciprocating motion in the left and right directions under the push of the lever 16 and the cooperation of the driven rack 20 and the reciprocating gear 17.

[0037] Preferably, the striking mechanism further includes striking components fixedly connected to the inner wall of the mounting box 12. The number of striking components is three, and the three striking components are arranged in a linear array on the inner wall of the mounting box 12. The striking components include a support plate 22 fixedly connected to the inner wall of the mounting box 12. A limiting window 23 is opened on the upper side of the support plate 22. A connecting strip 21 is fixedly connected to the upper side of the active rack 18. The inner wall of the limiting window 23 is slidably connected to the surface of the connecting strip 21.

[0038] By setting three striking components at different heights to strike the reactor 2, it is ensured that the material adhering to the inner wall of the reactor 2 can be completely shaken off. When the active rack 18 moves, it drives the connecting strip 21 to move. The limiting window 23 can limit the connecting strip 21 with a certain length to prevent the connecting strip 21 from deflecting during the movement. The support plate 22 is the installation platform for the striking components.

[0039] Preferably, the striking assembly further includes a mounting plate 24 that is slidably connected to the upper side of the support plate 22. The surface of the mounting plate 24 is fixedly connected to the surface of the connecting strip 21. A mounting rod 26 is fixedly connected to the side of the mounting plate 24 away from the connecting strip 21. An arc-shaped striking plate 27 is fixedly connected to the other end of the mounting rod 26. A return spring 25 is fixedly connected to the side of the mounting plate 24 near the connecting strip 21. The other end of the return spring 25 is fixedly connected to the inner wall of the mounting box 12.

[0040] The mounting plate 24 increases the mounting area, providing a fulcrum for the mounting rod 26 and the return spring 25. The arc-shaped striking plate 27 can protrude through the window reserved on the mounting box 12 and strike the reactor 2. The surface of the arc-shaped striking plate 27 is covered with a layer of sponge to prevent the arc-shaped striking plate 27 from directly impacting the reactor 2 and causing deformation of the reactor 2. The return spring 25 can prevent the connecting bar 21 from getting stuck and unable to move.

[0041] The working principle of this utility model is as follows: A raw material mixing vessel for polymer polyol production first adds the raw materials to the reaction vessel 2. Then, the mixing motor 3 is started. The mixing motor 3 drives the active stirring shaft 5 to rotate, which in turn drives the active gear 8 to rotate. Under the constraint of the transmission gear ring 10, the driven gear 9 moves continuously around the active stirring shaft 5 while rotating in the opposite direction to the active stirring shaft 5. This ensures thorough mixing of the raw materials in the reaction vessel 2 while preventing material entanglement and avoiding violent shaking of the reaction vessel 2, thus ensuring the safety of surrounding personnel. After the material preparation is completed, the mixing motor 3 is turned off, and the discharge valve is opened to discharge the material. The striking motor 13 is started, which drives the rotating disk 15 to rotate. The rotating disk 15 drives the lever 16 to move, which in turn drives the connecting ring to move. The connecting ring then drives the driving rack 18 to move. With the cooperation of the driven rack 20 and the reciprocating gear 17, the driving rack 18 achieves reciprocating motion in the left and right directions. The movement of the driving rack 18 drives the connecting bar 21 to move, which in turn drives the mounting plate 24 to move. The movement of the mounting plate 24 drives the mounting rod 26 to move, which in turn drives the arc-shaped striking plate 27 to move. During the material discharge process, the striking plate 2 is used to shake off the residual material on the inner wall of the reactor 2, making it easier for the staff to clean the device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material mixing vessel for the production of polymer polyols, comprising a bottom plate (1), characterized in that: A reaction vessel (2) is fixedly connected to the upper side of the base plate (1). A discharge hole is opened on the lower side of the reaction vessel (2). A discharge pipe (4) is fixedly connected to the inner wall of the discharge hole. A mixing motor (3) is fixedly connected to the upper side of the reaction vessel (2). A mixing mechanism is fixedly connected to the inner wall of the reaction vessel (2). A knocking mechanism is fixedly connected to the upper side of the base plate (1). The mixing mechanism includes a mounting cover (7) fixedly connected to the inner wall of the reactor (2), the output end of the mixing motor (3) passes through the inner top wall of the reactor (2) and is fixedly connected to an active stirring shaft (5), an active gear (8) is fixedly connected to the surface of the active stirring shaft (5), a driven stirring shaft (6) is provided below the mounting cover (7), a driven gear (9) is fixedly connected to the surface of the driven stirring shaft (6), the active gear (8) meshes with the driven gear (9), and a transmission gear ring (10) is fixedly connected to the inner wall of the mounting cover (7), the transmission gear ring (10) meshes with the driven gear (9).

2. The raw material mixing tank for polymer polyol production according to claim 1, characterized in that: The inner wall of the mounting cover (7) is rotatably connected to a partition plate (11). An active mounting hole is provided on the upper side of the partition plate (11). The inner wall of the active mounting hole is rotatably connected to the surface of the active stirring shaft (5). A driven mounting hole is provided on the upper side of the partition plate (11). The inner wall of the driven mounting hole is rotatably connected to the surface of the driven stirring shaft (6). The upper side of the partition plate (11) is rotatably connected to the lower side of the active gear (8). The upper side of the partition plate (11) is rotatably connected to the lower side of the driven gear (9). The upper side of the partition plate (11) is rotatably connected to the lower side of the transmission gear ring (10).

3. The raw material mixing tank for polymer polyol production according to claim 1, characterized in that: The striking mechanism includes a mounting box (12) fixedly connected to the upper side of the base plate (1), a striking motor (13) fixedly connected to the rear side of the mounting box (12), a support clamp (14) fixedly connected to the inner bottom wall of the mounting box (12), a rotating disk (15) slidably connected to the inner wall of the support clamp (14), the output end of the striking motor (13) fixedly connected to the rear side of the rotating disk (15), and a lever (16) fixedly connected to the front side of the rotating disk (15).

4. The raw material mixing tank for polymer polyol production according to claim 3, characterized in that: The striking mechanism also includes a fixed plate (28) fixedly connected to the inner wall of the mounting box (12). A reciprocating gear (17) is rotatably connected to the rear side of the fixed plate (28). A drive rack (18) is slidably connected to the rear side of the fixed plate (28). The drive rack (18) meshes with the reciprocating gear (17). A limit ring (19) is fixedly connected to the rear side of the drive rack (18). The inner wall of the limit ring (19) is slidably connected to the surface of the lever (16). A driven rack (20) is slidably connected to the rear side of the fixed plate (28). The driven rack (20) meshes with the reciprocating gear (17).

5. The raw material mixing tank for producing polymer polyols according to claim 4, characterized in that: The striking mechanism also includes striking components that are fixedly connected to the inner wall of the mounting box (12). There are three striking components, and the three striking components are arranged in a linear array on the inner wall of the mounting box (12). Each striking component includes a support plate (22) that is fixedly connected to the inner wall of the mounting box (12). A limiting window (23) is opened on the upper side of the support plate (22). A connecting strip (21) is fixedly connected to the upper side of the active rack (18). The inner wall of the limiting window (23) is slidably connected to the surface of the connecting strip (21).

6. The raw material mixing tank for polymer polyol production according to claim 5, characterized in that: The striking assembly also includes a mounting plate (24) that is slidably connected to the upper side of the support plate (22). The surface of the mounting plate (24) is fixedly connected to the surface of the connecting strip (21). A mounting rod (26) is fixedly connected to the side of the mounting plate (24) away from the connecting strip (21). An arc-shaped striking plate (27) is fixedly connected to the other end of the mounting rod (26). A return spring (25) is fixedly connected to the side of the mounting plate (24) near the connecting strip (21). The other end of the return spring (25) is fixedly connected to the inner wall of the mounting box (12).

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