A circulating buffer tank for anticorrosive finish production

Abstract

The utility model relates to the technical field of anticorrosive finish production equipment, and disclose a kind of anticorrosive finish production is used to circulate buffer tank, including tank body, the middle part of the tank body inner chamber is rotatably connected with connecting shaft, the outer wall of connecting shaft is fixedly sleeved with several axial arrangement's stirring vane, the upper end of connecting shaft is rotatably connected in the top of tank body and is penetrated to outside, and the top of tank body is fixedly connected with motor.In the circulating buffer tank, connecting shaft drives material conveying assembly to operate when rotating, material conveying assembly transports material upwards, forms the material circulation flow of bottom-middle-top, so that the material of bottom density can be mixed with the material of top density small, ensure that material keeps uniformity in entire storage state, effectively avoid the stratification problem of " upper dilution lower thickening", so as to guarantee that the component proportion of material discharged in different time period is always consistent when subsequent discharging.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-corrosion topcoat production equipment, and in particular to a circulating buffer tank for anti-corrosion topcoat production. Background Technology

[0002] Existing technology.

[0003] For example, Chinese Patent Publication No. CN223200662U discloses a circulating buffer tank for producing epoxy anti-corrosion topcoat, comprising a main module and a functional module. The main module includes a tank body, a feed pipe installed at the bottom of the tank body and communicating with the inner cavity of the tank, and a discharge pipe installed at the bottom of the tank body and communicating with the inner cavity of the tank. This device has the advantages of preventing the epoxy anti-corrosion topcoat from contacting air and automatically stirring to prevent the epoxy topcoat from solidifying.

[0004] Regarding the aforementioned and existing related technologies, the inventors believe that the following drawbacks often exist: Although the device can prevent epoxy topcoat from solidifying through stirring, the large density difference between the powder and liquid components in the topcoat raw materials, influenced by gravity settling, will cause the denser powder to gradually accumulate towards the bottom of the tank in the flow field generated by stirring, while the less dense liquid will easily float to the top, ultimately forming a layered phenomenon with a thinner top and a thicker bottom. This uneven state will lead to inconsistent material component ratios at different times during discharge, resulting in batch-to-batch or batch-to-batch differences in key performance indicators such as film thickness, adhesion, corrosion resistance, and color uniformity of the produced epoxy anti-corrosion topcoat, affecting the stability of product quality and the consistency of application effects. Summary of the Invention

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of powder settling at the bottom while liquid floats on the top, eventually forming a layered phenomenon of thin at the top and thick at the bottom. To address this, we propose a circulating buffer tank for the production of anti-corrosion topcoat.

[0006] To achieve the above objectives, this application adopts the following technical solution: a circulating buffer tank for producing anti-corrosion topcoat, comprising a tank body, a connecting shaft rotatably connected to the middle of the inner cavity of the tank body, a plurality of axially arranged stirring blades fixedly sleeved on the outer wall of the connecting shaft, the upper end of the connecting shaft rotatably connected to the top of the tank body and extending to the outside, a motor fixedly connected to the top of the tank body, the motor shaft being fixedly connected to the upper end face of the connecting shaft, two axially opposite driving gears fixedly sleeved on the connecting shaft, two sets of axially opposite conveying assemblies provided on the outer side of the connecting shaft, the conveying assembly including two radially symmetrical conveying cylinders on both sides of the connecting shaft, the conveying cylinders being hollow structures with open tops, a feed inlet being opened at the bottom of the side wall of the conveying cylinder, a rotating shaft provided in the inner cavity of the conveying cylinder, a spiral conveying blade fixedly sleeved on the rotating shaft, the lower end of the rotating shaft rotatably connected to the bottom of the conveying cylinder and extending to the outside, a driven gear fixedly connected to the lower end face of the rotating shaft, the driven gear meshing with the adjacent driving gear.

[0007] Preferably, baffles are fixedly sleeved on the middle and upper ends of the connecting shaft, and the bottom surfaces of the two baffles are respectively attached to the top of the upper and lower conveying cylinders. Two radially symmetrical discharge ports are opened on the baffles, and the discharge ports correspond to the openings at the top of the conveying cylinders.

[0008] Preferably, a connecting rod is fixedly connected to the outer wall of each of the conveying cylinders, and one end of the connecting rod is fixedly connected to the inner wall of the tank.

[0009] Preferably, each set of conveying components is located between two adjacent stirring blades, and each baffle is located between an adjacent stirring blade and an adjacent conveying component.

[0010] Preferably, the number of tooth slots of the driving gear is greater than the number of tooth slots of the driven gear, and the gear ratio of the driving gear to the driven gear is 1:5.

[0011] Preferably, the top of the tank is fixedly connected to a feed pipe with a discharge end extending into the inner cavity, and the bottom of the tank is fixedly connected to a discharge pipe with a feed end extending into the inner cavity. Valves are installed on both the feed pipe and the discharge pipe.

[0012] Preferably, an air pump is fixedly connected to the top of the tank, and the air pump's suction end extends into the inner cavity of the tank.

[0013] The technical effects and advantages of this utility model are as follows: In this invention, the connecting shaft drives the conveying assembly to operate when it rotates. The conveying assembly conveys the material upward, so that the material on the lower side of the inner cavity of the tank is conveyed to the middle, and the material in the middle is conveyed to the top. This allows the material with higher density at the bottom to mix with the material with lower density at the top, forming a "bottom-middle-top" material circulation flow. This ensures that the material remains uniform throughout the storage process, effectively avoiding the problem of stratification where the material is thinner at the top and thicker at the bottom. This ensures that the component ratio of the material discharged at different times during subsequent discharge is always consistent.

[0014] In this invention, the baffle is attached to the top of the conveying cylinder and rotates, causing the pressure inside the conveying cylinder to accumulate periodically and then be released. The released pressure generates a strong impact force and a high-speed material flow, which not only sprays the material upward to a higher position, but also the high-speed material flow strongly scours the inner wall of the conveying cylinder, peeling off and carrying away the material particles adhering to the cylinder wall, preventing the material from adhering and solidifying inside the conveying cylinder, thereby avoiding the problem of blockage in the conveying cylinder. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the tank body in this utility model; Figure 3 This is a schematic diagram of the structure of the motor, connecting shaft and stirring blade in this utility model; Figure 4 This is a schematic diagram of the material conveying assembly in this utility model; Figure 5 This is a cross-sectional view of the conveying cylinder in this utility model.

[0016] Legend: 1. Tank body; 2. Connecting shaft; 3. Stirring blades; 4. Motor; 5. Drive gear; 6. Conveying cylinder; 7. Feed inlet; 8. Rotating shaft; 9. Screw conveyor blades; 10. Driven gear; 11. Baffle; 12. Discharge port; 13. Connecting rod; 14. Feed pipe; 15. Discharge pipe; 16. Air pump. Detailed Implementation

[0017] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0018] Reference Figure 1-5 As shown, this utility model provides a technical solution: a circulating buffer tank for the production of anti-corrosion topcoat, including a tank body 1, a connecting shaft 2 rotatably connected to the middle of the inner cavity of the tank body 1, a plurality of axially arranged stirring blades 3 fixedly sleeved on the outer wall of the connecting shaft 2, the upper end of the connecting shaft 2 rotatably connected to the top of the tank body 1 and extending to the outside, a motor 4 fixedly connected to the top of the tank body 1, the shaft of the motor 4 fixedly connected to the upper end face of the connecting shaft 2, and two axially opposite drive gears 5 fixedly sleeved on the connecting shaft 2. Two sets of axially opposite conveying assemblies are provided on the outer side. The conveying assembly includes two radially symmetrical conveying cylinders 6 on both sides of the connecting shaft 2. The conveying cylinder 6 is a hollow structure with an open top. The bottom of the side wall of the conveying cylinder 6 is provided with a feed port 7. The inner cavity of the conveying cylinder 6 is provided with a rotating shaft 8. A spiral conveying blade 9 is fixedly sleeved on the rotating shaft 8. The lower end of the rotating shaft 8 is rotatably connected to the bottom of the conveying cylinder 6 and extends to the outside. A driven gear 10 is fixedly connected to the lower end face of the rotating shaft 8. The driven gear 10 meshes with the adjacent driving gear 5.

[0019] In order to spray the material discharged from the top of the conveying cylinder 6 to a higher position and to prevent the material from clogging inside the conveying cylinder 6, baffles 11 are fixedly sleeved on the middle and upper ends of the connecting shaft 2. The bottom surfaces of the two baffles 11 are respectively attached to the top of the upper and lower sides of the conveying cylinder 6. Two radially symmetrical discharge ports 12 are opened on the baffles 11, and the discharge ports 12 correspond to the openings at the top of the conveying cylinder 6. When the bottom surface of the baffle 11 blocks the opening at the top of the conveying cylinder 6, the material accumulates pressure inside the conveying cylinder 6. When the baffle 11 rotates to align the discharge ports 12 with the openings at the top of the conveying cylinder 6, the accumulated pressure is released and the material is quickly conveyed upward.

[0020] In order to fix the conveying cylinder 6 inside the tank 1, a connecting rod 13 is fixedly connected to the outer wall of each conveying cylinder 6. One end of the connecting rod 13 is fixedly connected to the inner wall of the tank 1. The conveying cylinder 6 is connected to the inner wall of the tank 1 through the connecting rod 13, so that the conveying cylinder 6 remains stationary inside the tank 1.

[0021] To prevent the stirring blades 3 from touching the conveying components when they rotate, each set of conveying components is located between two adjacent stirring blades 3, and each baffle 11 is located between an adjacent stirring blade 3 and an adjacent conveying component.

[0022] In order to make the rotational speed of the spiral conveyor blade 9 exceed the rotational speed of the connecting shaft 2, the number of tooth grooves of the driving gear 5 is greater than the number of tooth grooves of the driven gear 10. The gear ratio of the driving gear 5 to the driven gear 10 is 1:5. Since the number of tooth grooves of the driving gear 5 is greater than the number of tooth grooves of the driven gear 10, the connecting shaft 2 maintains a slower rotational speed while making the spiral conveyor blade 9 rotate rapidly, thereby ensuring that the spiral conveyor blade 9 can convey materials upward.

[0023] In order to inject materials into the tank 1 and discharge materials, a feed pipe 14 with a discharge end extending into the inner cavity is fixedly connected to the top of the tank 1, and a discharge pipe 15 with a feed end extending into the inner cavity is fixedly connected to the bottom of the tank 1. Valves are installed on both the feed pipe 14 and the discharge pipe 15. Materials are injected into the tank 1 through the feed pipe 14 and discharged from the tank 1 through the discharge pipe 15.

[0024] To prevent the material from coming into contact with air in the tank 1, an air pump 16 is fixedly connected to the top of the tank 1. The air pump 16 extends into the inner cavity of the tank 1. Before injecting raw materials into the tank 1, the air in the tank 1 can be extracted by the air pump 16 to prevent the material from coming into contact with air.

[0025] Working principle: The user injects material into the tank 1 through the feed pipe 14 and discharges the material from the tank 1 through the discharge pipe 15. Before injecting raw materials into the tank 1, the air can be extracted from the tank 1 by the air pump 16 to prevent the material from contacting the air. When the material is stored in the tank 1, the motor 4 drives the connecting shaft 2 to rotate. The connecting shaft 2 drives the stirring blades 3 to rotate and stir the material to prevent it from condensing. When the connecting shaft 2 rotates, it drives the drive gear 5 to rotate. The drive gear 5 drives the driven gear 10 to rotate. The driven gear 10 drives the rotating shaft 8 to rotate. The rotating shaft 8 drives the drive gear 10 to rotate. The rotating screw conveyor blades 9 allow the material inside the tank 1 to enter the conveying cylinder 6 through the feed inlet 7. The rotating screw conveyor blades 9 then transport the material into the conveying cylinder 6 upwards and discharge it from the bottom opening. The conveying assembly on the lower side of the inner cavity of the tank 1 transports the material from the bottom to the middle, and the conveying assembly in the middle transports the material from the middle to the top, forming a bottom-middle-top material circulation flow. This ensures that the material remains uniform throughout the storage process, effectively avoiding the problem of stratification where the material is thinner at the top and thicker at the bottom. This ensures that the component ratio of the material discharged at different times during subsequent discharge remains consistent.

[0026] When the connecting shaft 2 rotates, it drives the baffle 11 to rotate. The bottom surface of the baffle 11 is in contact with the top of the conveying cylinder 6, blocking the opening at the top of the conveying cylinder 6. This prevents the material inside the conveying cylinder 6 from being discharged from the top opening, causing pressure to accumulate inside the conveying cylinder 6. When the baffle 11 rotates until the discharge port 12 is aligned with the top of the conveying cylinder 6, the baffle 11 no longer blocks the opening at the top of the conveying cylinder 6, and the pressure inside the conveying cylinder 6 is released instantly. The released pressure generates a strong impact force and a high-speed material flow, which not only sprays the material upward to a higher position, but also the high-speed material flow strongly scours the inner wall of the conveying cylinder 6, peeling off and carrying away the material particles adhering to the cylinder wall, preventing the material from adhering and solidifying inside the conveying cylinder 6, thereby avoiding blockage problems in the conveying cylinder 6.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A circulating buffer tank for producing anti-corrosion topcoat, characterized in that, The device includes a tank body. A connecting shaft is rotatably connected to the center of the tank body's inner cavity. Several axially arranged stirring blades are fixedly sleeved on the outer wall of the connecting shaft. The upper end of the connecting shaft is rotatably connected to the top of the tank body and extends to the outside. A motor is fixedly connected to the top of the tank body. The motor shaft is fixedly connected to the upper end face of the connecting shaft. Two axially opposite driving gears are fixedly sleeved on the connecting shaft. Two sets of axially opposite conveying assemblies are provided on the outer side of the connecting shaft. The conveying assembly includes two radially symmetrical conveying cylinders on both sides of the connecting shaft. The conveying cylinders are hollow structures with open tops. A feed inlet is opened at the bottom of the side wall of the conveying cylinder. A rotating shaft is provided in the inner cavity of the conveying cylinder. Spiral conveying blades are fixedly sleeved on the rotating shaft. The lower end of the rotating shaft is rotatably connected to the bottom of the conveying cylinder and extends to the outside. A driven gear is fixedly connected to the lower end face of the rotating shaft. The driven gear meshes with the adjacent driving gear.

2. The circulating buffer tank for producing anti-corrosion topcoat according to claim 1, characterized in that: Both the middle and upper ends of the connecting shaft are fixedly fitted with baffles. The bottom surfaces of the two baffles are respectively attached to the top of the upper and lower conveying cylinders. Two radially symmetrical discharge ports are opened on the baffles, and the discharge ports correspond to the openings at the top of the conveying cylinders.

3. The circulating buffer tank for producing anti-corrosion topcoat according to claim 1, characterized in that: Each of the conveying cylinders is fixedly connected to the outer wall of the cylinder, and one end of the connecting rod is fixedly connected to the inner wall of the cylinder.

4. The circulating buffer tank for producing anti-corrosion topcoat according to claim 2, characterized in that: Each set of conveying components is located between two adjacent stirring blades, and each baffle is located between an adjacent stirring blade and an adjacent conveying component.

5. The circulating buffer tank for producing anti-corrosion topcoat according to claim 1, characterized in that: The number of tooth grooves of the driving gear is greater than the number of tooth grooves of the driven gear, and the gear ratio of the driving gear to the driven gear is 1:

5.

6. The circulating buffer tank for producing anti-corrosion topcoat according to claim 1, characterized in that: The top of the tank is fixedly connected to a feed pipe with a discharge end extending into the inner cavity, and the bottom of the tank is fixedly connected to a discharge pipe with a feed end extending into the inner cavity. Valves are installed on both the feed pipe and the discharge pipe.

7. The circulating buffer tank for producing anti-corrosion topcoat according to claim 1, characterized in that: An air pump is fixedly connected to the top of the tank, and the air pump's suction end extends into the inner cavity of the tank.

Images