A stirring device for PAM mixing

Abstract

The utility model relates to mixing stirring technical field, and disclose a kind of stirring device for PAM mixing, including mixing tank, the top of the mixing tank is equipped with cover, the top of the cover is fixedly connected with mounting sleeve, the inside fixed mounting of the mounting sleeve is equipped with servo motor, the output of the servo motor is fixedly connected with rotating rod, the surface fixed connection of the rotating rod is equipped with stirring rod, the inner wall of the mixing tank is fixedly connected with mounting plate, the inside sliding connection of the mounting plate is equipped with movable column.The utility model passes through the linkage structure of setting dispersion plate, cambered surface boss, dispersion rod and spring, dispersion rod rotates with rotating rod in operation, while periodically pressing-putting cambered surface boss to make dispersion plate compress spring and rebound momentarily, produce up and down vibration;PAM is first mechanically scattered, then evenly scattered by vibration, avoid the agglomeration and flocculate of direct feeding, reach the effect of improving subsequent dissolution uniformity, shorten mixing time.

Description

Technical Field

[0001] This utility model relates to the field of mixing and stirring technology, specifically to a stirring device for mixing PAM. Background Technology

[0002] Polyacrylamide (PAM) is a linear polymer synthesized from acrylamide monomers through free radical polymerization. It exhibits good water solubility, forms high-viscosity solutions, and possesses adsorption bridging, thickening, and drag-reducing properties. It is widely used as a flocculant in water treatment, as a thickener in oil extraction, as a retention aid and reinforcing agent in the paper industry, as a sizing agent and dyeing auxiliary in the textile industry, and can also improve soil water retention.

[0003] PAM requires extremely high uniformity during the dissolution process. If it is added to water all at once, the outer layer of PAM will quickly swell to form a viscous film, which will coat the inner dry powder and produce fish-eye-shaped flocs that are difficult to disperse. This not only reduces the effective concentration but also easily clogs subsequent pipes and pumps, directly affecting the treatment effect and increasing the consumption of reagents. Currently, simple paddle agitators are commonly used, and PAM is poured directly from the top opening. Without a pre-dispersion structure, the material comes into contact with the liquid surface and clumps up the moment it is added. The agitator only rotates horizontally and cannot break up the already formed flocs, resulting in prolonged dissolution time and batch quality fluctuations. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a stirring device for PAM mixing, including a mixing tank, a cover installed on the top of the mixing tank, an installation sleeve fixedly connected to the top of the cover, a servo motor fixedly installed inside the installation sleeve, a rotating rod fixedly connected to the output end of the servo motor, a stirring rod fixedly connected to the surface of the rotating rod, an installation plate fixedly connected to the inner wall of the mixing tank, a movable column slidably connected inside the installation plate, a dispersing plate fixedly connected to the top of the movable column, an arc-shaped convex plate fixedly connected to the top of the dispersing plate, a dispersing rod fixedly connected to the surface of the rotating rod, and a spring fixedly connected to the bottom of the dispersing plate.

[0005] Through the above technical solution, by setting up a mechanical linkage of a dispersing plate, an arc-shaped convex plate, a dispersing rod, and a spring, the dispersing rod rotates with the rotating rod during operation. While dispersing the accumulated PAM, it periodically presses and releases the arc-shaped convex plate, causing the dispersing plate to compress the spring and rebound instantly, generating up-and-down vibration. The PAM is first mechanically dispersed and then evenly scattered by vibration, avoiding the clumping and flocculent matter caused by direct feeding, thus achieving the effect of improving the uniformity of subsequent dissolution and shortening the mixing time.

[0006] As a further improvement to the above solution, the rotating rod passes through the dispersion plate, and the number of movable columns is set to four, which are arranged in a circumferential array around the top of the mounting plate.

[0007] The above technical solution uses four movable columns for circumferential guidance to ensure that the horizontal position of the dispersion plate remains unchanged when it vibrates up and down, avoiding skewness and jamming, and maintaining vibration stability.

[0008] As a further improvement to the above solution, two arc-shaped convex plates are provided. The two arc-shaped convex plates are symmetrically and evenly distributed on the surface with respect to the top center of the dispersion plate. The shape of the arc-shaped convex plates is semi-elliptical. The bottom of the dispersion rod is in contact with the top of the dispersion plate.

[0009] With the above technical solution, the two semi-elliptical arc-shaped convex plates are arranged symmetrically at the center, so that the dispersing rod generates two symmetrical downward pressures every time it rotates, the dispersing plate is subjected to balanced force, the vibration rhythm is consistent, and the material is spread evenly.

[0010] As a further improvement to the above solution, the spring is sleeved on the surface of the movable column, and the bottom of the spring is fixedly connected to the top of the mounting plate.

[0011] With the above technical solution, the spring is sleeved outside the movable column and directly connected to the mounting plate. The compression-reset stroke is completely guided by the column, preventing the spring from buckling laterally.

[0012] As a further improvement to the above solution, the top of the dispersion plate is fixedly connected to a limiting sleeve one, the bottom of the dispersion plate is fixedly connected to a limiting sleeve two, and the bottom of the movable column is fixedly connected to a limiting plate.

[0013] Through the above technical solution, the first limiting sleeve, the second limiting sleeve, and the limiting plate form a two-way limiting, preventing the dispersion plate from detaching from the rotating rod upwards or excessively impacting the mounting plate downwards, thus ensuring that the vibration amplitude is within a safe range.

[0014] As a further improvement to the above solution, the bottom of the limiting sleeve 2 is located below the mounting plate.

[0015] As a further improvement to the above technical solution, an installation platform is fixedly connected to the surface of the mixing tank, a water pump is fixedly connected to the top of the installation platform by bolts, a water outlet pipe is fixedly connected to the output end of the water pump, and a feed hopper is fixedly installed on the top of the cover.

[0016] As a further improvement to the above solution, the output end of the water outlet pipe penetrates the inner wall of the mixing tank, the water outlet pipe is located below the second limiting sleeve, and the output end of the feed hopper is located inside the first limiting sleeve.

[0017] With the above technical solution, the outlet of the water pipe is located below the second limiting sleeve, ensuring that the solvent washes away the spilled PAM as soon as possible; the outlet of the feed hopper extends into the first limiting sleeve, so that the PAM falls directly onto the dispersing plate, avoiding it from scattering between the first limiting sleeve and the inner wall of the mixing tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a linkage structure consisting of a dispersing plate, an arc-shaped convex plate, a dispersing rod, and a spring. During operation, the dispersing rod rotates with the rotating rod, periodically pressing and releasing the arc-shaped convex plate while dispersing the accumulated PAM. This causes the dispersing plate to compress the spring and rebound instantly, generating up-and-down vibration. The PAM is first mechanically dispersed and then evenly scattered by vibration, avoiding clumping and flocculent matter caused by direct feeding. This achieves the effects of improving the uniformity of subsequent dissolution and shortening the mixing time.

[0019] This invention achieves a continuous process of adding liquid and mixing simultaneously by setting up a coordinated circuit of a servo motor, a rotating rod, a stirring rod, and a water pump. During operation, the water pump continuously delivers solvent to the bottom of the tank, and the servo motor drives the stirring rod to mechanically stir the sprinkled PAM-solvent system in real time. This achieves the effect of preventing excessively high local concentrations and ensuring stable overall mixing quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the overall connection top structure of the dispersion plate of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the overall connection of the dispersion plate of this utility model.

[0021] In the diagram: 1. Mixing tank; 2. Cover; 3. Mounting sleeve; 4. Servo motor; 5. Rotating rod; 6. Stirring rod; 7. Mounting plate; 8. Movable column; 9. Dispersion plate; 10. Limiting sleeve one; 11. Limiting sleeve two; 12. Arc-shaped convex plate; 13. Dispersion rod; 14. Limiting plate; 15. Mounting platform; 16. Water pump; 17. Water outlet pipe; 18. Feed hopper; 19. Spring. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example: Please combine Figure 1-4This embodiment of a stirring device for PAM mixing includes a mixing tank 1, a cover 2 installed on the top of the mixing tank 1, an mounting sleeve 3 fixedly connected to the top of the cover 2, a servo motor 4 fixedly installed inside the mounting sleeve 3, a rotating rod 5 fixedly connected to the output end of the servo motor 4, a stirring rod 6 fixedly connected to the surface of the rotating rod 5, a mounting plate 7 fixedly connected to the inner wall of the mixing tank 1, a movable column 8 slidably connected inside the mounting plate 7, a dispersing plate 9 fixedly connected to the top of the movable column 8, an arc-shaped convex plate 12 fixedly connected to the top of the dispersing plate 9, a dispersing rod 13 fixedly connected to the surface of the rotating rod 5, and a spring 19 fixedly connected to the bottom of the dispersing plate 9.

[0024] During feeding, PAW is fed into the mixing tank 1 through the feed hopper 18 and accumulates on top of the dispersing plate 9. The output of the servo motor 4 drives the rotating rod 5 to rotate, which in turn drives the dispersing rod 13 to rotate. The dispersing rod 13 disperses the raw material above the dispersing plate 9. Simultaneously, when the dispersing rod 13 contacts the arc-shaped convex plate 12, the height of the arc-shaped convex plate 12 gradually increases from both ends to the center. Therefore, when the dispersing rod 13 contacts the arc-shaped convex plate 12, it will squeeze the arc-shaped convex plate 12. At the same time, the dispersing plate 9 squeezes the spring 19. When the dispersing rod 13 disengages from the top of the arc-shaped convex plate 12, the spring 19 rebounds, causing the entire dispersing plate 9 to vibrate up and down. The PAW on the top of the dispersing plate 9 is scattered into the mixing tank 1. The rotating rod 5 passes through the dispersion plate 9, and four movable columns 8 are provided. The four movable columns 8 are arranged in a circular array at the top of the mounting plate 7. The multiple movable columns 8 limit and guide the spring 19 to move downward.

[0025] There are two arc-shaped convex plates 12. The two arc-shaped convex plates 12 are evenly distributed on the surface symmetrically around the top center of the dispersion plate 9. The shape of the arc-shaped convex plates 12 is a semi-ellipse. The bottom of the dispersion rod 13 is in contact with the top of the dispersion plate 9. The dispersion plate is vibrated by the contact and separation between the arc-shaped convex plates 12 and the dispersion rod 13.

[0026] Spring 19 is sleeved on the surface of movable column 8, and the bottom of spring 19 is fixedly connected to the top of mounting plate 7.

[0027] The top of the dispersion plate 9 is fixedly connected to a limiting sleeve 10, the bottom of the dispersion plate 9 is fixedly connected to a limiting sleeve 2 11, and the bottom of the movable column 8 is fixedly connected to a limiting plate 14.

[0028] A mounting platform 15 is fixedly connected to the surface of the mixing tank 1. A water pump 16 is fixedly connected to the top of the mounting platform 15 by bolts. A water outlet pipe 17 is fixedly connected to the output end of the water pump 16. A feed hopper 18 is fixedly installed on the top of the cover 2. The solution is added to the inside of the mixing tank 1 through the water pump 16 and the water outlet pipe 17.

[0029] The outlet end of the water outlet pipe 17 penetrates the inner wall of the mixing tank 1. The water outlet pipe 17 is located below the second limiting sleeve 11, and the outlet end of the feed hopper 18 is located inside the first limiting sleeve 10.

[0030] The implementation principle of a stirring device for PAM mixing in this embodiment is as follows: When mixing PAW, PAW is first fed into the mixing tank 1 from the feed hopper 18 and piled on top of the dispersing plate 9. The servo motor 4 is started, and the output end of the servo motor 4 drives the rotating rod 5 to rotate. The rotation of the rotating rod 5 drives the dispersing rod 13 to rotate. The rotation of the dispersing rod 13 disperses the raw material above the dispersing plate 9. At the same time, when the dispersing rod 13 contacts the arc-shaped convex plate 12, the two ends of the arc-shaped convex plate 12 are close to the middle. As the height of the center position gradually increases, when the dispersing rod 13 comes into contact with the arc-shaped convex plate 12, it will squeeze the arc-shaped convex plate 12, causing the arc-shaped convex plate 12 to squeeze the dispersing plate 9. Simultaneously, the dispersing plate 9 squeezes the spring 19. When the dispersing rod 13 disengages from the top of the arc-shaped convex plate 12, the spring rebounds, causing the entire dispersing plate 9 to vibrate up and down. The PAW on the top of the dispersing plate 9 will all fall into the interior of the mixing tank 1, avoiding the direct addition of PAW into the interior of the mixing tank 1 to mix with the solution, which would cause the PAW to clump together and form flocculent matter.

[0031] Start the servo motor 4. The output of the servo motor 4 drives the rotating rod 5 to rotate. The rotation of the rotating rod 5 drives the stirring rod 6 to rotate. The rotation of the stirring rod 6 stirs and mixes the solution and PAW mixture inside the mixing tank 1.

[0032] Start the water pump 16. The input end of the water pump 16 delivers the solution from the outlet pipe 17 into the interior of the mixing tank 1 for PAW mixing and stirring.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A stirring device for mixing PAM, characterized in that: The system includes a mixing tank (1), a cover (2) installed on the top of the mixing tank (1), an installation sleeve (3) fixedly connected to the top of the cover (2), a servo motor (4) fixedly installed inside the installation sleeve (3), a rotating rod (5) fixedly connected to the output end of the servo motor (4), a stirring rod (6) fixedly connected to the surface of the rotating rod (5), an installation plate (7) fixedly connected to the inner wall of the mixing tank (1), a movable column (8) slidably connected inside the installation plate (7), a dispersing plate (9) fixedly connected to the top of the movable column (8), an arc-shaped convex plate (12) fixedly connected to the top of the dispersing plate (9), a dispersing rod (13) fixedly connected to the surface of the rotating rod (5), and a spring (19) fixedly connected to the bottom of the dispersing plate (9).

2. The stirring device for PAM mixing according to claim 1, characterized in that: The rotating rod (5) passes through the dispersion plate (9), and the number of the movable columns (8) is set to four, which are arranged in a circular array at the top of the mounting plate (7).

3. The stirring device for PAM mixing according to claim 1, characterized in that: There are two arc-shaped convex plates (12). The two arc-shaped convex plates (12) are evenly distributed on the surface with the top center of the dispersing plate (9) symmetrical. The arc-shaped convex plates (12) are semi-elliptical in shape. The bottom of the dispersing rod (13) is in contact with the top of the dispersing plate (9).

4. A stirring device for PAM mixing according to claim 1, characterized in that: The spring (19) is sleeved on the surface of the movable column (8), and the bottom of the spring (19) is fixedly connected to the top of the mounting plate (7).

5. A stirring device for PAM mixing according to claim 1, characterized in that: The top of the dispersion plate (9) is fixedly connected to a limiting sleeve one (10), the bottom of the dispersion plate (9) is fixedly connected to a limiting sleeve two (11), and the bottom of the movable column (8) is fixedly connected to a limiting plate (14).

6. A stirring device for PAM mixing according to claim 5, characterized in that: The bottom of the limiting sleeve (11) is located below the mounting plate (7).

7. A stirring device for PAM mixing according to claim 1, characterized in that: The surface of the mixing tank (1) is fixedly connected to an installation platform (15), and the top of the installation platform (15) is fixedly connected to a water pump (16) by bolts. The output end of the water pump (16) is fixedly connected to a water outlet pipe (17), and the top of the cover (2) is fixedly installed with a feed hopper (18).

8. A stirring device for PAM mixing according to claim 7, characterized in that: The output end of the water outlet pipe (17) penetrates the inner wall of the mixing tank (1), the water outlet pipe (17) is located below the second limiting sleeve (11), and the output end of the feed hopper (18) is located inside the first limiting sleeve (10).

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