A vacuum dispersion stirring apparatus

Abstract

The utility model belongs to the technical field of stirring equipment, specifically is a kind of vacuum dispersion stirring equipment, including frame, bowl-shaped tank body is assembled on the frame, tank body is assembled by drive system and can open and close tank cover, tank cover opening and closing stroke is controlled by limit switch, first stirring mechanism is equipped in the bottom center of tank body, for stirring bottom center material and push to inner wall, second stirring mechanism is equipped on tank cover, including stirring arm and the scraper that is attached with tank body inner wall, material through-hole is opened on it, material can diffuse across scraper under the action of centrifugal force, when scraper rotates, push inner wall material to edge and stirrer position movement, frame is equipped with vacuum system and pressure relief port, tank cover is equipped with connecting port for assembling external connecting equipment, the utility model is through double stirring mechanism cooperation and vacuum system, effectively improve stirring uniformity, eliminate material bubble, adapt to a variety of process requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing equipment, specifically a vacuum dispersion mixing device. Background Technology

[0002] Mixing equipment is widely used in chemical, food, pharmaceutical, and coating industries. It is mainly used for mixing, dispersing, emulsifying, and stirring materials. It can handle materials in various states such as liquids, pastes, and granules. By using different mixing methods, it promotes uniform mixing of materials and meets the needs of material homogenization and reaction promotion in various production processes.

[0003] Existing mixing equipment mainly consists of the following parts: power system, mixing shaft, agitator, tank, support, etc. Its working principle is: the power system drives the mixing shaft to rotate, which drives the agitator to run at high speed, applying mechanical force to the material in the tank, and achieving mixing through shearing, convection, diffusion and other actions.

[0004] Current mixing equipment has the following drawbacks: it is difficult for the material at the bottom center to form effective convection with the material on the inner wall; the material at the bottom center is prone to accumulation due to insufficient mixing force; and the material on the inner wall is stuck due to the lack of a fitting and pushing structure, resulting in stratification of the material at the center and the edge. The mixing components and the inner wall of the tank are poorly matched, either the gap is too large, which prevents the material on the inner wall from being effectively driven, or the structural conflict affects the continuity of mixing. Therefore, a vacuum dispersion mixing device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing mixing equipment, a vacuum dispersion mixing device is proposed. The technical solution adopted by this utility model to solve its technical problem is as follows: The vacuum dispersion mixing device of this utility model includes a frame, on which a tank is mounted. A closable tank cover is mounted on the tank via a drive system. A discharge valve is provided on one side of the bottom of the tank. The tank is bowl-shaped. A first mixing mechanism is provided at the bottom center of the tank via a drive device. A second mixing mechanism is provided on the tank cover via a drive device. The first mixing mechanism includes a stirrer located at the bottom center of the inner wall of the tank. The stirrer is used to stir the material at the bottom center of the tank. The second mixing mechanism includes a stirring arm. A scraper is provided on one side of the stirring arm that adheres to the inner wall of the tank. When the scraper is driven by the stirring arm, it pushes the material on the inner wall of the tank towards the edge of the scraper and the position of the stirrer.

[0006] Preferably, the scraper is connected to the stirring arm by fixing bolts, and a material passage hole is opened on the side of the scraper near the stirring arm. When the scraper stirs the material, under the action of centrifugal force, the material in the direction of the scraper rotation will be sucked into the material passage hole and the material will be diffused to the other side of the scraper.

[0007] Preferably, the agitator is a Coulomb disc, which stirs the material toward the inner wall of the tank when it rotates.

[0008] Preferably, the frame is equipped with a vacuum system, which includes a vacuum pump and a buffer tank connected to the vacuum pump. The buffer tank is connected to the inside of the tank cover via a connecting pipe, and the buffer tank is connected to the inside of the tank cover via a pipe for evacuating the sealed tank to eliminate air bubbles in the stirred material. The tank cover is provided with a pressure relief port for releasing pressure before opening the tank cover.

[0009] Preferably, the drive system includes a hydraulic cylinder rotatably mounted on one side of the tank body, and a hydraulic pump station mounted on the frame to supply oil to the hydraulic cylinder. A support arm is rotatably mounted on one side of the tank body, one end of the support arm is connected to the tank cover, and the other end is connected to the working end of the hydraulic cylinder.

[0010] Preferably, a limit switch is provided on the tank body at the end of the opening and closing stroke of the can lid, and the limit switch is used to control the opening and closing position of the can lid.

[0011] Preferably, the tank lid is provided with a steam nozzle for heating the material, and the steam nozzle is connected to an external gas supply pipe.

[0012] Preferably, the can lid is provided with several connection ports for assembling equipment that needs to be connected into the can body, and the connection ports for which no equipment is assembled are sealed with plugs.

[0013] Preferably, a sealing element is provided between the sealing surfaces of the tank body and the tank lid, and a plurality of fixing components for fixing and sealing the tank body and the tank lid are provided around the top opening.

[0014] Preferably, the frame is equipped with an electrical control system and a display controller, and the tank is equipped with a temperature sensor, which is connected to the display controller via a wire.

[0015] The beneficial effects of this utility model are:

[0016] This invention provides a vacuum dispersion and mixing device. The Coulomb disk of the first mixing mechanism specifically agitates the material at the bottom center and pushes it towards the inner wall. The scraper of the second mixing mechanism at the top pushes the material attached to the inner wall towards the scraper edge and the Coulomb disk position. The two cover the bottom center and inner wall area of ​​the tank, forming a three-dimensional mixing range without dead angles. When the scraper rotates, the squeezed material surges to both ends and to the rear. Combined with the cross-scraper diffusion achieved by the material through the material through the holes under the action of centrifugal force, it forms a multi-directional cross convection with the material pushed by the Coulomb disk, which enhances the shearing and mixing effect between materials and improves the mixing uniformity. Through structural complementarity and flow field synergy, a highly efficient and uniform material mixing effect is achieved. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a structural diagram of the entire utility model;

[0019] Figure 2 This is a structural diagram of the second stirring mechanism of this utility model;

[0020] Figure 3 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a top view of the structure of this utility model;

[0022] Legend:

[0023] 1. Frame; 2. Tank body; 3. Tank cover; 4. First stirring mechanism; 401. Agitator; 5. Second stirring mechanism; 501. Stirring arm; 502. Scraper; 5021. Material through hole; 6. Vacuum system; 601. Vacuum pump; 602. Buffer tank; 7. Support arm; 8. Drive system; 801. Hydraulic cylinder; 802. Hydraulic pump station; 10. Discharge valve; 11. Temperature sensor; 12. Steam nozzle; 13. Pressure relief port; 14. Connection port; 15. Fixing component; 1501. Bolt; 1502. Lock handle; 1503. Lock lug. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-4The present invention discloses a vacuum dispersion and mixing device, comprising a frame 1, a tank 2 mounted on the frame 1, a closable tank cover 3 mounted on the tank 2 via a drive system 8, a sealing element provided between the sealing surfaces of the tank 2 and the tank cover 3, and a plurality of fixing components 15 for fixing and sealing the tank 2 and the tank cover 3 around the top opening of the tank 2, the fixing components 15 including bolts 1501 rotatably mounted on the tank 2, a locking handle 1502 rotatably mounted on the bolts 1501 via threaded engagement, and locking lugs 1503 on the tank cover 3 that engage with the bolts 1501. The drive system 8 includes a hydraulic cylinder 801 rotatably mounted on one side of the tank 2, and a hydraulic pump station 802 mounted on the frame 1 for supplying oil to the hydraulic cylinder 801. A support arm 7 is rotatably mounted on one side of the tank 2, one end of the support arm 7 being connected to the tank cover 3, and the other end being connected to the working end of the hydraulic cylinder 801.

[0027] The tank body 2 is equipped with [features] at the end of the opening and closing stroke of the tank lid 3.

[0028] A limit switch is provided to control the opening and closing positions of the can lid 3. A discharge valve 10 is provided on one side of the bottom of the can body 2. The can body 2 is bowl-shaped. A first stirring mechanism 4 is provided at the bottom center of the can body 2 via a driving device. A second stirring mechanism 5 is provided on the can lid 3 via a driving device. The first stirring mechanism 4 includes a stirrer 401 located at the bottom center of the inner wall of the can body 2. The stirrer 401 is used to stir the material at the bottom center of the can body 2. The second stirring mechanism 5 includes a stirring arm 501. A scraper 502 is provided on one side of the stirring arm 501 and is attached to the inner wall of the can body 2. When the scraper 502 is stirred by the stirring arm 501, it pushes the material on the inner wall of the can body 2 toward the scraper 502. The scraper 502 moves at the edge of the agitator 401. The scraper 502 is connected to the agitator arm 501 by fixing bolts, and a material passage hole 5021 is opened on the side of the scraper 502 near the agitator arm 501. When the scraper 502 agitates the material, under the action of centrifugal force, the material in the direction of rotation of the scraper 502 will be sucked into the material passage hole 5021, and the material will be diffused to the other side of the scraper 502. The agitator 401 is a Coulomb disc. When the agitator 401 rotates, it agitates the material towards the inner wall of the tank 2. During operation, before the equipment runs, the hydraulic cylinder 801 of the drive system 8 extends and retracts, and the tank cover 3 is rotated around one side of the tank 2 through the support arm 7 to open the tank cover 3. The end point of its opening stroke is controlled by the limit switch on the tank 2. To avoid over-range mixing, the staff adds the material to be mixed into the tank 2, then closes the tank lid 3, rotates the bolt 1501 of the fixing component 15 to align it with the locking lug 1503, and then tightens the locking handle 1502 to ensure that the tank 2 and the tank lid 3 are tightly sealed together through the sealing surface, forming a closed space. During mixing, the agitator 401 of the bottom first mixing mechanism 4 rotates under the drive of the driving device, using the structural characteristics of the Coulomb disc to stir the material at the bottom center of the tank 2 towards the inner wall. At the same time, the mixing arm 501 of the top second mixing mechanism 5 rotates under the drive of the driving device, causing the scraper 502 to rotate synchronously. The scraper 502 and the agitator 401 are staggered to prevent them from colliding. Because it adheres to the inner wall of the tank 2, the material attached to the inner wall can be pushed towards the edge of the scraper 502 and the position of the agitator 401. At the same time, when the scraper 502 rotates, the material on one side of its rotation direction is squeezed by the scraper 502 and will surge towards the two ends of the scraper 502 and flow to the rear of the scraper 502. During this process, the centrifugal force generated by the rotation of the scraper 502 causes the material on one side of its rotation direction to be sucked into the material passage 5021 and diffused to the other side of the scraper 502 through the material passage 5021, forming a cross-convection with the material stirred by the agitator 401. After the stirring is completed, the material can be discharged by opening the discharge valve 10. The scraper 502 is detachably connected to the agitator arm 501 by the fixing bolts, which is convenient for later maintenance and replacement.The first stirring mechanism 4 and the second stirring mechanism 5, belonging to the same structure described above, are designed and coordinated to form a three-dimensional stirring zone. The stirrer 401 specifically treats the material at the bottom center, while the scraper 502 covers the inner wall area. Together, they eliminate the dead zones at the bottom and inner wall of the tank 2. The material passage 5021 of the scraper 502 utilizes centrifugal force to achieve material diffusion across the scraper, enhancing the shearing and mixing between materials and improving the uniformity of mixing.

[0029] Furthermore, a vacuum system 6 is provided on the frame 1. The vacuum system 6 includes a vacuum pump 601 and a buffer tank 602 connected to the vacuum pump 601. The buffer tank 602 is connected to the inside of the tank cover 3 via a connecting pipe. The buffer tank 602 is connected to the inside of the tank cover 3 via a pipe, which is used to evacuate the sealed tank 2 to eliminate air bubbles in the stirred material. The tank cover 3 is provided with a pressure relief port 13 for depressurizing before opening the tank cover 3. During operation, after the material is stirred, the material contains a large number of air bubbles. The vacuum pump 601 starts running and evacuates the buffer tank 602 via the pipe. Air is extracted from the buffer tank 602, creating a negative pressure. Air from the tank body 2 and lid 3 is then drawn into the buffer tank 602 through the connecting pipe and finally discharged by the vacuum pump 601, creating a vacuum environment inside the tank body 2. This vacuum environment removes air bubbles trapped in the material, preventing bubble residue. After the bubbles are eliminated, air is introduced into the tank body 2 through the pressure relief port 13 before opening the lid 3 to balance the internal and external air pressures. This combination of structures eliminates air bubbles generated during mixing, making it suitable for materials sensitive to air bubbles and improving product purity and stability.

[0030] Furthermore, the tank cover 3 is provided with several connection ports 14 for assembling equipment that needs to be connected into the tank body 2. Connection ports 14 without assembled equipment are sealed with plugs. The tank cover 3 is provided with a steam nozzle 12 for heating materials, which is connected to an external gas supply pipe. The connection ports 14 on the tank cover 3 are also provided with water spray nozzles connected to external pipes, used to add liquid after stirring and clean the inside of the tank body 2 with the assistance of a scraper 502. The connection ports 14 on the tank cover 3 are also provided with a pressure gauge and a pipe for adding external additives. The frame 1 is equipped with an electrical control system and a display controller. The tank body 2 is equipped with a temperature sensor 11, which is connected to the display controller via wires. During operation, depending on the process requirements, functional components can be flexibly assembled into the connection ports 14 on the tank cover 3: the steam nozzle 12 is connected to an external gas supply pipe to heat the tank body. Steam is introduced into tank 2 to heat the material. Temperature sensor 11 on tank 2 monitors the material temperature in real time and transmits the data to the display controller via wires. The electrical control system adjusts the steam supply of steam nozzle 12 according to the difference between the set temperature and the real-time temperature to achieve precise temperature control. After stirring, water is sprayed into tank 2 through connection port 14 to connect to an external water pipe. This, combined with the rotation of the stirring mechanism, cleans the inner wall of tank 2 and the stirring components. Pressure gauge monitors the pressure inside tank 2 through connection port 14 to ensure that the equipment operates within a safe pressure range. Pipes for adding external additives extend into tank 2 through connection port 14, allowing for real-time addition of materials during stirring without opening the tank cover 3. Unused connection ports 14 are sealed with plugs to ensure the airtightness of tank 2. The expandable design of connection port 14 allows the equipment to be flexibly equipped with pressure gauges, additive pipelines, and other components according to process requirements, improving the equipment's versatility and adaptability.

[0031] Furthermore, the can lid 3 is provided with a transparent observation window for observing the internal stirring state.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vacuum dispersion and stirring device, comprising a frame (1), a tank (2) mounted on the frame (1), an openable and closable tank cover (3) mounted on the tank (2) via a drive system (8), and a discharge valve (10) provided on one side of the bottom end of the tank (2), characterized in that: The tank (2) is bowl-shaped. A first stirring mechanism (4) is provided at the bottom center of the tank (2) via a driving device. A second stirring mechanism (5) is provided on the tank cover (3) via a driving device. The first stirring mechanism (4) includes a stirrer (401) located at the bottom center of the inner wall of the tank (2). The stirrer (401) is used to stir the material at the bottom center of the tank (2). The second stirring mechanism (5) includes a stirring arm (501). A scraper (502) is provided on one side of the stirring arm (501) and fits against the inner wall of the tank (2). When the scraper (502) is stirred by the stirring arm (501), it will push the material on the inner wall of the tank (2) to move towards the edge of the scraper (502) and the position of the stirrer (401).

2. The vacuum dispersion and stirring device according to claim 1, characterized in that: The scraper (502) is connected to the stirring arm (501) by fixing bolts, and a material passage hole (5021) is provided on the side of the scraper (502) near the stirring arm (501). When the scraper (502) stirs the material, under the action of centrifugal force, the material in the direction of rotation of the scraper (502) will be sucked into the material passage hole (5021) and the material will spread to the other side of the scraper (502).

3. The vacuum dispersion and stirring device according to claim 1, characterized in that: The agitator (401) is a Coulomb disc, which stirs the material toward the inner wall of the tank (2) when it rotates.

4. The vacuum dispersion and stirring device according to claim 1, characterized in that: The frame (1) is equipped with a vacuum system (6), which includes a vacuum pump (601) and a buffer tank (602) connected to the vacuum pump (601). The buffer tank (602) is connected to the inside of the tank cover (3) through a connecting pipe. The buffer tank (602) is connected to the inside of the tank cover (3) through a pipe to evacuate the sealed tank body (2) and eliminate air bubbles in the stirred material. The tank cover (3) is provided with a pressure relief port (13) for depressurizing before opening the tank cover (3).

5. The vacuum dispersion and stirring device according to claim 1, characterized in that: The drive system (8) includes a hydraulic cylinder (801) rotatably mounted on one side of the tank body (2), and a hydraulic pump station (802) mounted on the frame (1) to supply oil to the hydraulic cylinder (801). A support arm (7) is rotatably mounted on one side of the tank body (2). One end of the support arm (7) is connected to the tank cover (3), and the other end is connected to the working end of the hydraulic cylinder (801).

6. The vacuum dispersion and stirring device according to claim 1, characterized in that: Limit switches are provided on the tank body (2) at the end of the opening and closing stroke of the can lid (3). The limit switches are used to control the opening and closing positions of the can lid (3).

7. The vacuum dispersion and stirring device according to claim 1, characterized in that: The can lid (3) is provided with a steam nozzle (12) for heating the material, and the steam nozzle (12) is connected to an external gas supply pipe.

8. The vacuum dispersion and stirring device according to claim 1, characterized in that: The can cover (3) is provided with several connection ports (14) for assembling equipment that needs to be connected into the can body (2). The connection ports (14) where no equipment is assembled are sealed with plugs.

9. The vacuum dispersion and stirring device according to claim 1, characterized in that: A sealing element is provided between the sealing surfaces of the tank body (2) and the can cover (3), and a number of fixing components (15) for fixing and sealing the tank body (2) and the can cover (3) are provided around the top opening of the tank body (2).

10. A vacuum dispersion and stirring device according to claim 1, characterized in that: An electrical control system and a display controller are provided on the frame (1), and a temperature sensor (11) is provided on the tank (2). The temperature sensor (11) is connected to the display controller via a wire.

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