A high-efficiency compounding and mixing device for polycarboxylic acid pumping agent

Abstract

The utility model relates to a kind of polycarboxylate pumping agent high-efficiency compounding mixing device applied to concrete admixture production equipment technical field, realize through controller opening servo motor drive first rotating shaft rotation, first rotating shaft is connected by the meshing of the first bevel gear and the second bevel gear of bottom wall at this time, drive third rotating shaft rotation, so that third rotating shaft is connected by the meshing of the second bevel gear and the first bevel gear on second rotating shaft and drive second rotating shaft rotation, first rotating shaft and second rotating shaft synchronous reverse rotation at this time, when first rotating shaft and second rotating shaft rotate, it will drive corresponding installation first mixing plate and L-shaped plate reverse rotation, to mix polycarboxylate pumping agent in mixing kettle body, can be mixed by the force collision of reverse, so that polycarboxylate pumping agent evenly dispersed avoids vortex, and first mixing plate rotation drives scraper and mixing kettle body inner wall friction, high-viscosity material in mixing kettle body inner wall is scraped down.

Description

Technical Field

[0001] This utility model relates to a compounding and mixing device, and in particular to a high-efficiency compounding and mixing device for polycarboxylate pumping agents applied in the field of concrete admixture production equipment technology. Background Technology

[0002] Polycarboxylate pumping agents are important concrete admixtures that significantly improve the fluidity and pumpability of concrete, and are widely used in the construction industry. In the production process of polycarboxylate pumping agents, compounding is a crucial step, requiring the uniform mixing of various raw materials to ensure the stability and uniformity of product quality.

[0003] Chinese patent CN215901574U discloses an environmentally friendly mixing kettle for processing polycarboxylate pumping agents. This utility model uses stirring blades to mix and stir multiple raw materials. At the same time, two sets of fans are started, and external air is drawn into the distribution pipe through the air inlet pipe and discharged into the kettle body, blowing the raw materials in the kettle body. Meanwhile, multiple sets of blades disperse the blown raw materials, which can improve the uniformity of mixing.

[0004] In existing mixing devices, materials tend to form dead zones within the container during the mixing process, resulting in insufficient mixing and reducing the product qualification rate. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that in the existing mixing device, the material is prone to forming dead corners in the container during the mixing process, resulting in insufficient mixing and reducing the product qualification rate.

[0006] To address the aforementioned problems, this utility model provides a high-efficiency compounding and mixing device for polycarboxylate-based pumping agents. The device includes a mixing vessel body with a discharge port at the bottom. A sealing cover is bolted to the top of the mixing vessel body. A servo motor is fixedly connected to the top of the sealing cover, and the output end of the servo motor is connected to a first rotating shaft extending into the mixing vessel body. A partition is fixedly connected to the bottom wall of the mixing vessel body. A second rotating shaft located directly below the first rotating shaft is rotatably connected to the top of the partition. Sleeves are fitted onto the ends of both the first and second rotating shafts, and a first bevel gear is fixedly connected to the ends of the two sleeves, which are close to each other. A second bevel gear is connected to the two first bevel gears by side meshing. A third shaft is fixedly connected inside the second bevel gear. The outer walls of the third shaft and the two sleeve shafts are fitted with ferrules, and the three ferrules are connected by two symmetrically arranged connecting rods. A connecting plate is fixedly connected to the side wall of the first shaft at equal intervals in an annular shape. A first mixing plate is fixedly connected to the end of the connecting plate away from the first shaft. A silicone scraper is detachably connected to the end of the first mixing plate away from the connecting plate, and the scraper is in contact with the inner wall of the mixing vessel. An L-shaped plate is fixedly connected to the side wall of the second shaft at equal intervals in an annular shape. A second mixing plate is fixedly connected to the inner wall of the L-shaped plate.

[0007] In the above-mentioned mixing device, by designing a first mixing plate and a second mixing plate that rotate synchronously in opposite directions, the polycarboxylate pumping agent is uniformly dispersed and mixed. At the same time, the scraper can effectively clean the high-viscosity material on the inner wall of the mixing vessel, avoiding dead corners in the mixing process.

[0008] As a further improvement of this application, unloading pipes are symmetrically installed on the partition, and solenoid valves are installed on the surface of the unloading pipes.

[0009] As a further supplement to this application, both the first mixing plate and the second mixing plate are provided with a plurality of circular holes at equal intervals.

[0010] As a further supplement to this application, a bushing is fitted on the bottom of the surface of the second rotating shaft, and a connecting shaft is rotatably connected between the bushing and the scraper located below the first mixing plate.

[0011] As a further supplement to this application, a roller is fitted on the surface of the connecting shaft, and the roller contacts the partition plate. The roller is made of stone.

[0012] As a further supplement to this application, a slot is provided at one end of the scraper near the first mixing plate, and the first mixing plate engages with the slot. Multiple corresponding screw holes are provided at equal intervals on the sidewalls of the first mixing plate and the slot, and screws are threaded into the screw holes.

[0013] As a further supplement to this application, a controller for controlling the servo motor and solenoid valve is fixedly connected to the mixing tank body.

[0014] In summary, the controller activates the servo motor to drive the first rotating shaft to rotate. The first rotating shaft, through the meshing of the first and second bevel gears on the bottom wall, drives the third rotating shaft to rotate. Both shafts and the surface of the third rotating shaft are connected to retaining sleeves, which are fixedly connected by connecting rods. Therefore, the third rotating shaft, through the meshing of the second bevel gear with the first bevel gear on the second rotating shaft, drives the second rotating shaft to rotate. The first and second rotating shafts rotate synchronously in opposite directions. When the first and second rotating shafts rotate, they drive the corresponding first mixing plate and L-shaped plate to rotate in opposite directions. This allows the polycarboxylate pumping agent in the mixing vessel to be mixed uniformly and dispersed through opposing forces, preventing the formation of vortices. Furthermore, the rotation of the first mixing plate causes the scraper to rub against the inner wall of the mixing vessel, scraping off high-viscosity materials. After processing, the controller can open the solenoid valve to discharge the material through the discharge pipe. Attached Figure Description

[0015] Figure 1 This is an isometric view of the mixing device according to the first embodiment of this application; Figure 2This is a schematic diagram of the internal structure of the mixing tank according to the first embodiment of this application; Figure 3 This is a schematic diagram of the hybrid mechanism according to the first embodiment of this application; Figure 4 This is a schematic diagram of the drive mechanism according to the first embodiment of this application; Figure 5 This is a schematic diagram of the installation of the mixing plate and scraper according to the second embodiment of this application; Figure 6 This is a schematic diagram of the scraper mounting structure according to the second embodiment of this application; Figure 7 This is a schematic diagram of the roller mounting structure according to the second embodiment of this application.

[0016] Explanation of the labels in the diagram: 1. Mixing vessel body; 2. Sealing cover; 3. Servo motor; 4. First rotating shaft; 5. Second rotating shaft; 6. Sleeve shaft; 7. First bevel gear; 8. Sleeve; 9. Second bevel gear; 10. Connecting plate; 11. First mixing plate; 12. Scraper; 13. L-shaped plate; 14. Second mixing plate; 15. Roller shaft; 16. Discharge pipe; 17. Round hole; 18. Third rotating shaft; 19. Connecting rod; 20. Partition plate; 21. Connecting shaft; 22. Bushing; 23. Slot; 24. Screw hole; 25. Screw. Detailed Implementation

[0017] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0018] First implementation method: Figures 1-4This invention discloses a high-efficiency compounding and mixing device for polycarboxylate-based pumping agents, comprising a mixing vessel body 1 with a discharge port at the bottom, a sealing cover 2 bolted to the top of the mixing vessel body 1, a servo motor 3 fixedly connected to the top of the sealing cover 2, and a first rotating shaft 4 extending into the mixing vessel body 1 connected to the output end of the servo motor 3. A partition 20 is fixedly connected to the bottom wall of the mixing vessel body 1, and a second rotating shaft 5 located directly below the first rotating shaft 4 is rotatably connected to the top of the partition 20. Sleeve shafts 6 are fitted onto the ends of the first rotating shaft 4 and the second rotating shaft 5, which are close to each other. First bevel gears 7 are fixedly connected to the ends of the two sleeve shafts 6, which are close to each other, and the two first bevel gears 7 are laterally meshed. A second bevel gear 9 is connected, and a third rotating shaft 18 is fixedly connected inside the second bevel gear 9. The outer walls of the third rotating shaft 18 and the two sleeve shafts 6 are all fitted with ferrules 8, and the three ferrules 8 are connected by two symmetrically arranged connecting rods 19. A connecting plate 10 is fixedly connected to the side wall of the first rotating shaft 4 at equal intervals in the ring. A first mixing plate 11 is fixedly connected to the end of the connecting plate 10 away from the first rotating shaft 4. A silicone scraper 12 is detachably connected to the end of the first mixing plate 11 away from the connecting plate 10, and the scraper 12 contacts the inner wall of the mixing tank body 1. An L-shaped plate 13 is fixedly connected to the side wall of the second rotating shaft 5 at equal intervals in the ring. A second mixing plate 14 is fixedly connected to the inner wall of the L-shaped plate 13. A discharge pipe 16 is symmetrically installed on the partition plate 20. A solenoid valve is installed on the surface of the discharge pipe 16. A controller for controlling the servo motor 3 and the solenoid valve is fixedly connected to the mixing tank body 1.

[0019] Working principle: The servo motor 3 is activated by the controller to drive the first rotating shaft 4 to rotate. At this time, the first rotating shaft 4 is connected to the second rotating shaft 9 through the meshing of the first bevel gear 7 on the bottom wall, driving the third rotating shaft 18 to rotate. At this time, the two sleeve shafts 6 and the surface of the third rotating shaft 18 are all connected to the retaining sleeves 8, and the retaining sleeves 8 are fixedly connected by the connecting rod 19. Therefore, the third rotating shaft 18 is connected to the first bevel gear 7 on the second rotating shaft 5 through the meshing of the second bevel gear 9, driving the second rotating shaft 5 to rotate. At this time, the first rotating shaft 4 and the second rotating shaft 5 rotate synchronously in opposite directions. When the first rotating shaft 4 and the second rotating shaft 5 rotate, they will drive the corresponding first mixing plate 11 and L-shaped plate 13 to rotate in opposite directions. This allows the polycarboxylate pumping agent in the mixing tank body 1 to be mixed evenly and dispersed through the force collision in opposite directions, avoiding the generation of vortices. In addition, the rotation of the first mixing plate 11 drives the scraper 12 to rub against the inner wall of the mixing tank body 1, scraping off the high-viscosity material from the inner wall of the mixing tank body 1. After the processing is completed, the solenoid valve can be opened by the controller to unload the material and discharge it from the unloading pipe. This invention uses a first mixing plate 11 and a second mixing plate 14 that rotate synchronously in opposite directions to uniformly disperse and mix the polycarboxylate pumping agent. At the same time, the scraper 12 can effectively clean the high-viscosity material on the inner wall of the mixing tank body 1, avoiding dead corners in the mixing process.

[0020] Second implementation method: Figures 5-7 The first mixing plate 11 and the second mixing plate 14 are both provided with a plurality of round holes 17 at equal intervals. A bushing 22 is fitted on the bottom surface of the second rotating shaft 5. A connecting shaft 21 is rotatably connected between the bushing 22 and the scraper 12 below the first mixing plate 11. A roller 15 is fitted on the surface of the connecting shaft 21 and contacts the partition plate 20. The roller 15 is made of stone. A slot 23 is provided on the end of the scraper 12 near the first mixing plate 11 and the first mixing plate 11 is engaged with the slot 23. A plurality of corresponding screw holes 24 are provided at equal intervals on the side walls of the first mixing plate 11 and the slot 23. Screws 25 are threaded into the screw holes 24.

[0021] Working principle: Multiple round holes 17 are provided on the sides of the first mixing plate 11 and the second mixing plate 14 mounted on the L-shaped plate 13, so that when the first mixing plate 11 and the second mixing plate 14 mix the polycarboxylate pumping agent, the liquid can be dispersed and the mixture can be more uniform. When the first mixing plate 11 rotates, the roller 15 below it rotates and contacts the partition plate 20, which can crush the powder additives deposited at the bottom and make them blend with the liquid additives. When the scraper 12 is used for a long time, it will wear due to friction with the inner wall of the mixing tank body 1. The screw 25 can be turned to remove the elastic silicone scraper 12 from the first mixing plate 11 for replacement. In this invention, multiple round holes 17 are provided on the first mixing plate 11 and the second mixing plate 14 to disperse the polycarboxylate pumping agent during mixing, making the mixing more uniform. At the same time, the rolling roller 15 can crush the powder additives at the bottom.

[0022] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A high-efficiency compounding and mixing device for polycarboxylate-based pumping agents, comprising a mixing tank body (1) with a discharge port at the bottom, characterized in that: The mixing vessel body (1) is bolted to a sealing cover (2) at its top. A servo motor (3) is fixedly connected to the top of the sealing cover (2), and the output end of the servo motor (3) is connected to a first rotating shaft (4) extending into the mixing vessel body (1). A partition (20) is fixedly connected to the bottom wall of the mixing vessel body (1). A second rotating shaft (5) located directly below the first rotating shaft (4) is rotatably connected to the top of the partition (20). A sleeve shaft (6) is fitted onto one end of the first rotating shaft (4) and the second rotating shaft (5) close to each other. A first bevel gear (7) is fixedly connected to one end of the two sleeve shafts (6) close to each other. A second bevel gear (9) is meshed between the two first bevel gears (7). A third rotating shaft (18) is fixedly connected. The outer walls of the third rotating shaft (18) and the two sleeve shafts (6) are fitted with ferrules (8), and the three ferrules (8) are connected by two symmetrically arranged connecting rods (19). A connecting plate (10) is fixedly connected to the side wall of the first rotating shaft (4) at equal intervals in the ring. A first mixing plate (11) is fixedly connected to the end of the connecting plate (10) away from the first rotating shaft (4). A silicone scraper (12) is detachably connected to the end of the first mixing plate (11) away from the connecting plate (10), and the scraper (12) contacts the inner wall of the mixing tank body (1). An L-shaped plate (13) is fixedly connected to the side wall of the second rotating shaft (5) at equal intervals in the ring. A second mixing plate (14) is fixedly connected to the inner wall of the L-shaped plate (13).

2. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 1, characterized in that: A discharge pipe (16) is symmetrically installed on the partition (20), and a solenoid valve is installed on the surface of the discharge pipe (16).

3. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 1, characterized in that: Both the first mixing plate (11) and the second mixing plate (14) have multiple circular holes (17) at equal intervals.

4. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 1, characterized in that: A bushing (22) is fitted on the bottom of the surface of the second rotating shaft (5), and a connecting shaft (21) is rotatably connected between the bushing (22) and the scraper (12) below the first mixing plate (11).

5. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 4, characterized in that: The connecting shaft (21) is fitted with a roller (15), and the roller (15) is in contact with the partition (20). The roller (15) is made of stone.

6. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 1, characterized in that: The scraper (12) has a slot (23) at one end near the first mixing plate (11), and the first mixing plate (11) engages with the slot (23). The sidewalls of the first mixing plate (11) and the slot (23) are provided with multiple corresponding screw holes (24) at equal intervals, and screws (25) are threaded into the screw holes (24).

7. The high-efficiency compounding and mixing device for polycarboxylate-based pumping agents according to claim 2, characterized in that: The mixing tank body (1) is fixedly connected to a controller that controls the servo motor (3) and the solenoid valve.

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