Reaction kettle for polycarboxylate superplasticizer

Abstract

The reaction kettle comprises a kettle body, a stirring assembly arranged on the kettle body and supporting legs arranged on the kettle body and used for supporting the kettle body, a cavity is formed in the side wall of the kettle body, an electric heating wire is arranged in the cavity, a feeding pipe is arranged at the top of the kettle body, and the stirring assembly is arranged on the kettle body. A discharging pipe is arranged at the bottom of the kettle body, the stirring assembly comprises a center shaft, a stirrer, a first rotating sleeve, a second rotating sleeve, a stirring frame, a scraping plate, an auxiliary stirring unit, a first driving unit and a second driving unit, a mounting frame is arranged at the top of the kettle body, the first rotating sleeve is rotationally arranged on the mounting frame through a bearing, and the second rotating sleeve is rotationally arranged on the mounting frame through a bearing. The second rotating sleeve is rotationally arranged at the top of the kettle body through a bearing and extends downwards into the kettle body. The utility model relates to the technical field of reaction kettles, and particularly provides a reaction kettle for a polycarboxylic acid superplasticizer, which is convenient for stirring materials on the periphery of a kettle body close to the side wall, is more sufficient in stirring and is convenient for cleaning the side wall of the kettle body.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to a reaction vessel for a polycarboxylate superplasticizer. Background Technology

[0002] Polycarboxylate superplasticizer is a high-performance water-reducing agent and a cement dispersant used in cement concrete. It is widely used in projects such as highways, bridges, dams, tunnels, and high-rise buildings. When used, it can reduce the amount of water used in concrete construction, lower the water-cement ratio, increase concrete strength, shorten the concrete curing period, ensure the progress of project construction, and give concrete long-term durability and corrosion resistance. Moreover, this product is green and environmentally friendly, non-flammable, non-explosive, and can be safely transported by train and truck.

[0003] The production process of polycarboxylate superplasticizer requires a reaction vessel. For example, Chinese utility model patent publication number "CN220405623U" discloses a reaction vessel for polycarboxylate superplasticizer, comprising: a vessel body; a feed pipe at the upper inlet of the vessel body, with a top cover hinged to the upper end of the feed pipe; a discharge pipe at the lower outlet of the vessel body, with a control valve connected in series inside the discharge pipe; a stirring shaft rotatably connected to the inside of the vessel body via bearings; stirring blades on the lower side of the outer arc surface of the stirring shaft, each stirring blade having a slotted hole inside; and an electric heating wire installed in a mounting groove inside the vessel body. The reaction vessel also includes a control switch assembly located outside the vessel body. The input end of the control switch assembly is electrically connected to an external power source, and the input end of the electric heating wire is electrically connected to the output end of the control switch assembly. This reaction vessel for polycarboxylate superplasticizer provides good stirring effect on the polycarboxylate superplasticizer raw materials, resulting in more thorough stirring and a wider range of applications.

[0004] However, the above solution still has some shortcomings: during the production and synthesis of polycarboxylate superplasticizer, the material viscosity is relatively high, and the material near the inner wall of the reactor cannot be stirred, resulting in uneven material distribution in the reactor and affecting product quality; in addition, some polycarboxylate superplasticizer will adhere to the inner wall of the reactor, which is difficult to clean. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a reaction vessel for polycarboxylate superplasticizer that facilitates stirring of materials near the side wall of the vessel body, resulting in more thorough stirring and easier cleaning of the side wall of the vessel body.

[0006] The technical solution adopted by this utility model is as follows: This utility model provides a reaction vessel for a polycarboxylate superplasticizer, comprising a vessel body and a stirring assembly mounted on the vessel body. The vessel body has supporting legs for its operation. A cavity is provided on the side wall of the vessel body, and an electric heating wire is installed within the cavity. A feeding pipe is provided at the top of the vessel body, and a discharge pipe is provided at the bottom of the vessel body. The stirring assembly includes a central shaft, a stirrer, a first rotating sleeve, a second rotating sleeve, a stirring frame, a scraper, an auxiliary stirring unit, a first driving unit, and a second driving unit. A mounting frame is provided at the top of the vessel body. The first rotating sleeve is rotatably mounted on the mounting frame via a bearing, and the second rotating sleeve is rotatably mounted on the mounting frame via a bearing.

[0007] The vessel body extends downwards from the top and into the vessel body. The second drive unit is mounted on the mounting frame. The central shaft is rotatably mounted on the movable part of the second drive unit. The second drive unit drives the central shaft to move up and down. The central shaft engages and slides through the first rotating sleeve and the second rotating sleeve, extending into the vessel body. The stirrer is located at the lower end of the central shaft. The first drive unit is mounted on the mounting frame. The first drive unit drives the first rotating sleeve to rotate. The stirring frame is sleeved on the second rotating sleeve. The scraper is mounted on the stirring frame and contacts the inner wall of the vessel body. The auxiliary stirring unit is mounted on the stirring frame for stirring materials near the side wall of the vessel body.

[0008] Furthermore, the auxiliary stirring unit includes a stirring shaft and stirring blades. The stirring shaft is rotatably mounted on a stirring frame via bearings. The stirring blades are mounted on the stirring shaft. Several groups of stirring blades are evenly arranged along the circumferential and length directions of the stirring shaft. A first gear is sleeved on the stirring shaft. A fixing frame is provided on the top wall inside the vessel body. A gear ring is installed on the fixing frame. The first gear and the gear ring mesh.

[0009] Furthermore, the first drive unit includes a motor, a first transmission wheel, a second transmission wheel, and a transmission belt. The motor is mounted on a mounting bracket, the first transmission wheel is sleeved on the output shaft of the motor, the second transmission wheel is sleeved on a first rotating sleeve, and the transmission belt is sleeved on the first transmission wheel and the second transmission wheel.

[0010] Furthermore, the second drive unit includes a hydraulic cylinder and a lifting plate. The hydraulic cylinder is mounted on a mounting frame, the lifting plate is mounted on the output shaft of the hydraulic cylinder, and the central shaft is rotatably mounted on the lifting plate via a bearing.

[0011] Furthermore, the stirrer includes a connecting rod and a helical ribbon, the connecting rod being disposed on a central shaft, and the helical ribbon being disposed on the connecting rod.

[0012] Furthermore, the feeding tube is equipped with a sealing cap.

[0013] Furthermore, a valve is provided on the discharge pipe.

[0014] Furthermore, the auxiliary stirring unit is provided in several groups along the circumferential direction of the toothed ring.

[0015] The beneficial effects of this utility model using the above structure are as follows: This solution uses a central shaft to drive the agitator to rotate and move up and down, which can more evenly stir the material in the center of the vessel. The auxiliary stirring unit can stir the material on the outer periphery of the vessel, thus making the stirring effect better and the stirring efficiency higher. This solution is also more convenient for cleaning the material adhering to the side wall of the vessel. During the stirring process, the scraper will rotate synchronously to scrape and clean the material adhering to the side wall of the vessel, thereby reducing the material residue in the vessel. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0019] Figure 3 This is a front view of an embodiment of the present utility model;

[0020] Figure 4 This is a left view of an embodiment of the present utility model;

[0021] Figure 5 This is a top view of an embodiment of the present utility model;

[0022] Figure 6 for Figure 3 A sectional view along section AA;

[0023] Figure 7 for Figure 4 A sectional view along section BB.

[0024] Figure 8 for Figure 2 Enlarged view of section A;

[0025] Figure 9 for Figure 6 Enlarged view of section B.

[0026] The components are as follows: 1. Kettle body; 2. Stirring assembly; 3. Support leg; 4. Mounting frame; 5. Feeding pipe; 6. Electric heating wire; 7. Discharge pipe; 8. Central shaft; 9. Stirrer; 10. First rotating sleeve; 11. Second rotating sleeve; 12. Stirring frame; 13. Scraper; 14. Auxiliary stirring unit; 15. First drive unit; 16. Second drive unit; 17. Connecting rod; 18. Screw ribbon; 19. Stirring shaft; 20. Stirring blade; 21. First gear; 22. Gear ring; 23. Motor; 24. First transmission wheel; 25. Second transmission wheel; 26. Transmission belt; 27. Hydraulic cylinder; 28. Lifting plate; 29. ​​Sealing cover; 30. Valve. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figures 1-9 As shown, the present invention discloses a reaction vessel for a polycarboxylate superplasticizer, comprising a vessel body 1 and a stirring assembly 2 disposed on the vessel body 1, support legs 3 for supporting the vessel body 1, a cavity provided on the side wall of the vessel body 1, an electric heating wire 6 disposed in the cavity, a feeding pipe 5 disposed on the top of the vessel body 1, and a discharge pipe 7 disposed on the bottom of the vessel body 1; a sealing cap 29 is provided on the feeding pipe 5; and a valve 30 is provided on the discharge pipe 7.

[0030] The stirring assembly 2 includes a central shaft 8, a stirrer 9, a first rotating sleeve 10, a second rotating sleeve 11, a stirring frame 12, a scraper 13, an auxiliary stirring unit 14, a first drive unit 15, and a second drive unit 16. A mounting bracket 4 is provided on the top of the vessel body 1. The first rotating sleeve 10 is rotatably mounted on the mounting bracket 4 via bearings. The second rotating sleeve 11 is rotatably mounted on the top of the vessel body 1 via bearings and extends downwards into the vessel body 1. The second drive unit 16 is mounted on the mounting bracket 4. The central shaft 8 is rotatably mounted on the movable part of the second drive unit 16. The second drive unit 16 drives the central shaft 8 to move up and down. The central shaft 8 engages and slides through the first rotating sleeve 15. The first rotating sleeve 10 and the second rotating sleeve 11 extend into the vessel body 1. The stirrer 9 is located at the lower end of the central shaft 8. The first drive unit 15 is located on the mounting frame 4. The first drive unit 15 drives the first rotating sleeve 10 to rotate. The stirring frame 12 is sleeved on the second rotating sleeve 11. The scraper 13 is located on the stirring frame 12 and contacts the inner wall of the vessel body 1. The auxiliary stirring unit 14 is located on the stirring frame 12 for stirring the material near the side wall of the vessel body 1. The auxiliary stirring unit 14 is provided in several groups along the circumferential direction of the toothed ring 22. The stirrer 9 includes a connecting rod 17 and a screw ribbon 18. The connecting rod 17 is located on the central shaft 8, and the screw ribbon 18 is located on the connecting rod 17.

[0031] The auxiliary stirring unit 14 includes a stirring shaft 19 and stirring blades 20. The stirring shaft 19 is rotatably mounted on the stirring frame 12 via bearings. The stirring blades 20 are mounted on the stirring shaft 19. Several groups of stirring blades 20 are evenly arranged along the circumferential and length directions of the stirring shaft 19. A first gear 21 is sleeved on the stirring shaft 19. A fixing frame is provided on the top wall inside the vessel body 1. A gear ring 22 is installed on the fixing frame. The first gear 21 and the gear ring 22 mesh.

[0032] The first drive unit 15 includes a motor 23, a first transmission wheel 24, a second transmission wheel 25, and a transmission belt 26. The motor 23 is mounted on the mounting bracket 4. The first transmission wheel 24 is sleeved on the output shaft of the motor 23. The second transmission wheel 25 is sleeved on the first rotating sleeve 10. The transmission belt 26 is sleeved on the first transmission wheel 24 and the second transmission wheel 25.

[0033] The second drive unit 16 includes a hydraulic cylinder 27 and a lifting plate 28. The hydraulic cylinder 27 is mounted on the mounting frame 4, and the lifting plate 28 is mounted on the output shaft of the hydraulic cylinder 27. The central shaft 8 is rotatably mounted on the lifting plate 28 via a bearing.

[0034] In practical use, the materials for producing polycarboxylate superplasticizer are added to the reactor body 1 through the feeding pipe 5, then the sealing cover 29 is closed, and the electric heating wire 6, motor 23, and hydraulic cylinder 27 are activated. The electric heating wire 6 heats the materials inside the reactor body 1. The hydraulic cylinder 27 drives the lifting plate 28 to move up and down, which in turn drives the central shaft 8 and the agitator 9 to move up and down. The motor 23 drives the first transmission wheel 24 to rotate, which in turn drives the second transmission wheel 25 to rotate via the transmission belt 26. The second transmission wheel 25 drives the first rotating sleeve 10 to rotate, which in turn drives the central shaft 8 and the agitator 9 to rotate. The up and down movement of the rotating agitator 9 allows for better mixing and stirring of the materials in the center of the reactor body 1. The central shaft 8 also drives the second rotating sleeve 11 to rotate, which in turn drives the stirring frame 12 to rotate. The stirring frame 12 then drives the scraper 13 and the stirring shaft 19 to rotate. The scraper 13 scrapes and cleans the material adhering to the side wall of the vessel body 1, thus reducing material residue inside the vessel body 1. Simultaneously, the rotation of the stirring shaft 19 drives the first gear 21 to rotate. Since the first gear 21 meshes with the gear ring 22, it also rotates, thus driving the stirring shaft 19 to rotate. This simultaneous revolution and rotation of the stirring shaft 19 drives the stirring blades 20 to also revolutionize and rotate, resulting in better mixing of materials inside and outside the vessel body 1, thereby improving the mixing effect and efficiency. After mixing is complete, the valve 30 is opened, and the contents of the vessel body 1 are discharged through the discharge pipe 7.

[0035] In summary, this solution uses the central shaft 8 to drive the agitator 9 to rotate and move up and down, which can more evenly stir the material in the center of the vessel 1. The auxiliary stirring unit 14 can stir the material on the inner and outer periphery of the vessel 1, thus making the stirring effect better and the stirring efficiency higher. This solution also makes it easier to clean the material adhering to the side wall of the vessel 1. During the stirring process, the scraper 13 will rotate synchronously to scrape and clean the material adhering to the side wall of the vessel 1, thereby reducing the material residue in the vessel 1.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A kind of reaction kettle for polycarboxylic acid superplasticizer, including kettle body (1) and the stirring assembly (2) being set on kettle body (1), the supporting leg (3) for being used to support it on kettle body (1), the side wall of kettle body (1) is equipped with cavity, electric heating wire (6) is equipped in the cavity, kettle body (1) top is equipped with feeding pipe (5), kettle body (1) bottom is equipped with discharge pipe (7), it is characterized by: The stirring assembly (2) comprises a central shaft (8), a stirrer (9), a first rotating sleeve (10), a second rotating sleeve (11), a stirring frame (12), a scraper (13), an auxiliary stirring unit (14), a first driving unit (15) and a second driving unit (16), the kettle body (1) is provided with a mounting frame (4) at the top, the first rotating sleeve (10) is rotatably arranged on the mounting frame (4) through a bearing, the second rotating sleeve (11) is rotatably arranged on the top of the kettle body (1) and extends downward into the kettle body (1), the second driving unit (16) is arranged on the mounting frame (4), the central shaft (8) is rotatably arranged on the movable part of the second driving unit (16), the central shaft (8) is driven to move up and down by the second driving unit (16), the central shaft (8) is slidably and rotatably arranged through the first rotating sleeve (10) and the second rotating sleeve (11) and extends into the kettle body (1), the stirrer (9) is arranged at the lower end of the central shaft (8), the first driving unit (15) is arranged on the mounting frame (4), the first rotating sleeve (10) is driven to rotate by the first driving unit (15), the stirring frame (12) is sleeved on the second rotating sleeve (11), the scraper (13) is arranged on the stirring frame (12) and is in contact with the inner wall of the kettle body (1), and the auxiliary stirring unit (14) is arranged on the stirring frame (12) and is used for stirring the material close to the side wall of the kettle body (1).

2. The reactor for preparing polycarboxylate superplasticizer according to claim 1, characterized in that: The auxiliary stirring unit (14) comprises a stirring shaft (19) and stirring blades (20), the stirring shaft (19) is rotatably arranged on the stirring frame (12) through a bearing, the stirring blades (20) are arranged on the stirring shaft (19), the stirring blades (20) are uniformly arranged in several groups along the circumferential direction and the length direction of the stirring shaft (19), a first gear (21) is sleeved on the stirring shaft (19), a fixed frame is arranged on the inner top wall of the kettle body (1), a tooth ring (22) is mounted on the fixed frame, and the first gear (21) and the tooth ring (22) are engaged.

3. The reactor for preparing polycarboxylic acid superplasticizer according to claim 1, characterized in that: The first driving unit (15) comprises a motor (23), a first transmission wheel (24), a second transmission wheel (25) and a transmission belt (26), the motor (23) is arranged on the mounting frame (4), the first transmission wheel (24) is sleeved on the output shaft of the motor (23), the second transmission wheel (25) is sleeved on the first rotating sleeve (10), and the transmission belt (26) is sleeved on the first transmission wheel (24) and the second transmission wheel (25).

4. The reaction kettle for polycarboxylic acid superplasticizer according to claim 1, characterized in that: The second driving unit (16) comprises a hydraulic cylinder (27) and a lifting plate (28), the hydraulic cylinder (27) is arranged on the mounting frame (4), the lifting plate (28) is arranged on the output shaft of the hydraulic cylinder (27), and the central shaft (8) is rotatably arranged on the lifting plate (28) through a bearing.

5. The reactor for preparing polycarboxylic acid superplasticizer according to claim 1, characterized in that: The stirrer (9) comprises a connecting rod (17) and a spiral belt (18), the connecting rod (17) is arranged on the central shaft (8), and the spiral belt (18) is arranged on the connecting rod (17).

6. The reaction kettle for polycarboxylic acid superplasticizer according to claim 1, characterized in that: A sealing cover (29) is arranged on the feeding pipe (5).

7. The reactor for preparing polycarboxylic acid superplasticizer according to claim 1, characterized in that: A valve (30) is arranged on the discharge pipe (7). 8.The reactor for preparing polycarboxylic acid superplasticizer of claim 2, wherein: The auxiliary stirring unit (14) is arranged along the circumferential direction of the gear ring (22).

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