A scraping blade device for wall scraping stirring and a stirring device

Abstract

The utility model relates to a kind of scraper device and stirring device for scraping wall stirring, including connecting plate (2), pin shaft (3), scraper (4) and split pin (1);The connecting plate (2) one end is connected with stirring paddle (5), and the other end of connecting plate is connected with pin shaft (3), and the axis of pin shaft (3) is perpendicular to the movement direction of stirring paddle (5);Multiple scrapers (4) are sleeved on the pin shaft (3), and scraper (4) can rotate around pin shaft (3);The end of pin shaft (3) away from pin shaft cap is installed split pin (1) to limit scraper (4).The utility model is simple in processing and manufacturing, easy to disassemble and install, scraper is closely adhered to tank wall, scraper self-regulating effect is obvious, wall is scraped clean, easy to clean, and assembly replacement is convenient.

Description

Technical Field

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

[0002] Wall-scraping agitators are primarily used for mixing, heat transfer, or reaction processes of high-viscosity, easily fouling, or heat-sensitive materials. Their core function is to use a wall-scraping device (scraper or blade) on the agitator shaft to move closely against the inner wall of the container, forcibly renewing the boundary layer, driving the materials to mix uniformly, preventing material deposition or adhesion to the walls, and enhancing heat transfer. They may also have propulsion or discharge functions. They are widely used in industries such as fine chemicals, pharmaceuticals, food, and building materials.

[0003] In practical applications, due to insufficient contact between the scraper and the inner wall, the self-compensation adjustment capability is limited, which easily leads to problems such as material leakage, coking on the wall, and excessive dead corners that are difficult to clean. Utility Model Content

[0004] The purpose of this utility model is to provide a scraper device and a stirring device for scraping and stirring, which solves the problems of insufficient contact between the scraper and the inner wall, limited self-compensation adjustment capability, easy leakage of material, coking on the wall, and too many dead corners that are difficult to clean.

[0005] To achieve the above objectives, according to one aspect of the present invention, a scraper device for wall scraping and stirring is provided, comprising a connecting plate, a pin shaft, a scraper, and a cotter pin;

[0006] One end of the connecting plate is connected to the stirring paddle, and the other end of the connecting plate is connected to the pin shaft. The axis of the pin shaft is perpendicular to the direction of movement of the stirring paddle.

[0007] Multiple scrapers are fitted on the pin shaft, and the scrapers can rotate around the pin shaft.

[0008] A cotter pin is installed at the end of the pin shaft away from the pin cap to limit the scraper.

[0009] Preferably, the connecting plate is provided with multiple slots, which together with the pin shaft form a through hole, allowing the material to be stirred to pass through the through hole.

[0010] Preferably, the connecting plate is provided with multiple through holes, through which the material to be stirred can pass.

[0011] Preferably, a through hole is formed in the scraper, and the size of the through hole matches the diameter of the pin.

[0012] Preferably, the scraper has a limiting groove along the axial direction of the through hole, the limiting groove is connected to the through hole, and the two limiting surfaces of the limiting groove have an included angle.

[0013] The end of the connecting plate that is connected to the pin is located in the limiting groove. The limiting groove, in conjunction with the connecting plate, can limit the angle of rotation of the scraper around the pin.

[0014] Preferably, the scraper is wedge-shaped, with the wedge tip contacting and adhering to the tank wall.

[0015] Preferably, the connecting plate and the pin are connected by welding.

[0016] Preferably, the connecting plate and the stirring paddle are connected by welding.

[0017] According to another aspect of the present invention, a stirring device is provided, which employs the aforementioned scraper device for wall-scraping stirring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model is simple to process and manufacture, easy to disassemble and install, the scraper fits tightly with the tank wall, the scraper has obvious self-adjustment effect, the wall is scraped clean, easy to clean, and easy to assemble and replace.

[0020] 2. This utility model improves the traditional large scraper into multiple small scrapers, making each small scraper more flexible. Each scraper can adjust its angle in real time according to the curvature of the tank wall structure and maintain a close fit with the tank wall, thereby scraping the material off the tank wall and preventing it from sticking and scorching.

[0021] 3. The connecting plate of this utility model is provided with slots or through holes, which allows materials to pass through, thereby reducing stirring resistance and preventing material from sticking.

[0022] 4. The scraper of this utility model is sleeved on the pin shaft and can rotate around the pin shaft. At the same time, by setting a limiting groove, the scraper can rotate within a certain preset angle range, which improves the self-adaptive flexibility of the scraper.

[0023] 5. This utility model uses pins and cotter pins to limit and fix the scraper, making disassembly and cleaning convenient and quick. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the present invention from one angle, showing a section cut along the axial direction of the pin.

[0025] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0026] Figure 3 These are front and top view structural schematic diagrams of one embodiment of the connecting plate of this utility model;

[0027] Figure 4 These are front and top view structural schematic diagrams of another embodiment of the connecting plate of this utility model;

[0028] Figure 5 These are schematic diagrams of the front and top views of the scraper of this utility model;

[0029] Figure 6 This is a schematic diagram of the pin structure of this utility model.

[0030] In the picture:

[0031] 1-Cotter pin; 2-Connecting plate; 21-Slot; 22-Through hole; 3-Pin; 4-Scraper; 41-Through hole; 42-Limiting groove; 5-Agitator; 6-Tank wall. Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0033] Example 1:

[0034] A scraper device for wall scraping and stirring, such as Figure 1-6 As shown, the system includes a connecting plate 2, a pin 3, scrapers 4, and a cotter pin 1. One end of the connecting plate 2 is connected to the stirring paddle 5, and the other end is connected to the pin 3. The axis of the pin 3 is perpendicular to the direction of movement of the stirring paddle 5. Multiple scrapers 4 are fitted onto the pin 3, and the scrapers 4 can rotate around the pin 3. A cotter pin 1 is installed at the end of the pin 3 away from the pin cap to limit the scrapers 4. The connecting plate 2 and the pin 3 are connected by welding. The connecting plate 2 and the stirring paddle 5 are also connected by welding. The traditional single large scraper is improved by replacing it with multiple small scrapers 4, making each scraper 4 more flexible. Each scraper 4 can adjust its angle in real time according to the curvature of the tank wall structure and maintain a tight fit with the tank wall, thereby scraping the material off the tank wall 6 and preventing it from sticking and slagging. The multiple scrapers 4 are limited and fixed by the pin 3 and the cotter pin 1, making disassembly and cleaning convenient and quick.

[0035] like Figure 3 As shown, the connecting plate 2 is provided with multiple slots 21, which, together with the pin 3, form a through hole 22, through which the material to be stirred can pass. The slots 21 reduce stirring resistance and prevent material from sticking. Another advantage of the slot design is that the opening of the slot 21 faces the pin 3, facilitating the welding connection between the connecting plate 2 and the pin 3.

[0036] like Figure 5As shown, the scraper 4 has a through hole 41, the size of which matches the diameter of the pin 3. A limiting groove 42 is formed on the scraper 4 along the axial direction of the through hole 41, communicating with the through hole 41. The two limiting surfaces of the limiting groove 42 have an included angle. One end of the connecting plate 2 connected to the pin 3 is located within the limiting groove 42. The limiting groove 42, in conjunction with the connecting plate 2, restricts the angle of rotation of the scraper 4 around the pin 3. The scraper 4 is wedge-shaped, with the wedge tip contacting and adhering to the tank wall 6. Through the rotational arrangement of multiple scrapers 4 around the pin 3, each scraper 4 moves independently, unaffected by adjacent scrapers 4, resulting in high flexibility. The limiting groove 42 allows the scraper 4 to rotate around the pin within a certain angle range, enabling self-adjustment based on the tank wall 6 and the material's force, ensuring close contact with the tank wall 6 and effectively scraping away the material. The scraper 4 has a wedge-shaped design, with the wedge tip making contact with the tank wall 6, which can reduce interference between the scraper 4 and the tank wall 6.

[0037] Pre-process all parts (including cotter pin 1, connecting plate 2, pin 3, scraper 4, etc.). First, weld and grind the connecting plate 2 to the pin 3. Then, install multiple scrapers 4 onto the pin 3, and finally lock the cotter pin 1 for positioning. Adjust the angle between the connecting plate 2 and scrapers 4 and the tank wall 6. Weld and polish the connecting plate 2 to the agitator 5. The scraper 4 has a limiting groove 42, allowing it to rotate around the pin 3 within a certain angle range. Under the action of the fluid inside the tank, the scraper 4 is pushed against and adheres tightly to the tank wall 6, scraping away the material adhering to it. The lengths of the connecting plate 2 and pin 3 can be adjusted according to the specific equipment, and the number and size of the scrapers 4 are adjusted accordingly.

[0038] Example 2:

[0039] This embodiment is largely the same as Embodiment 1, with the main difference being: in Embodiment 1, as follows... Figure 3 As shown, the connecting plate 2 is provided with multiple slots 21, which, together with the pin 3, form a through hole 22, through which the material to be stirred can pass; and in this embodiment, as Figure 4 As shown, the connecting plate 2 is provided with a plurality of through holes 22, through which the material to be stirred can pass. The through holes 22 can reduce stirring resistance and prevent material from sticking together.

[0040] Example 3:

[0041] A stirring device employs the scraper device for wall scraping and stirring described in Example 1 or Example 2. It achieves the advantages of simple manufacturing, convenient disassembly and installation, tight fit between the scraper 4 and the tank wall, significant self-adjustment effect of the scraper 4, clean wall scraping, easy cleaning, and convenient assembly and replacement.

[0042] In this utility model, the use of directional terms such as "upper," "lower," "left," "right," "bottom," and "top" is defined relative to the directions shown in the accompanying drawings and is used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other directional terms should not be construed as restrictive terms.

[0043] In this utility model, the use of words such as "a," "an," "a kind," and "the" does not indicate a quantity limitation and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," and "third" used in this utility model are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0044] Furthermore, this utility model does not discuss in detail the technologies and equipment known to those skilled in the art, but where appropriate, such technologies and equipment should be considered part of the specification.

[0045] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A scraper device for wall scraping and stirring, characterized in that, It includes a connecting plate (2), a pin (3), a scraper (4), and a cotter pin (1); One end of the connecting plate (2) is connected to the stirring paddle (5), and the other end of the connecting plate is connected to the pin (3). The axis of the pin (3) is perpendicular to the direction of movement of the stirring paddle (5). Multiple scrapers (4) are sleeved on the pin (3), and the scrapers (4) can rotate around the pin (3); A cotter pin (1) is installed at the end of the pin (3) away from the pin cap to limit the scraper (4).

2. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The connecting plate (2) is provided with a plurality of slots (21), which together with the pin (3) form a through hole (22), through which the material to be stirred can pass.

3. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The connecting plate (2) is provided with multiple through holes (22), through which the material to be stirred can pass.

4. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The scraper (4) has a through hole (41) and the size of the through hole (41) matches the diameter of the pin (3).

5. The scraper device for wall scraping and stirring according to claim 4, characterized in that, The scraper (4) has a limiting groove (42) along the axial direction of the through hole (41). The limiting groove (42) is connected to the through hole (41), and the two limiting surfaces of the limiting groove (42) have an included angle. The end of the connecting plate (2) connected to the pin (3) is located in the limiting groove (42). The limiting groove (42) and the connecting plate (2) can limit the angle of rotation of the scraper (4) around the pin (3).

6. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The scraper (4) is wedge-shaped, and the tip of the wedge is in contact with and adheres to the tank wall (6).

7. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The connecting plate (2) and the pin (3) are connected by welding.

8. The scraper device for wall scraping and stirring according to claim 1, characterized in that, The connecting plate (2) and the stirring paddle (5) are connected by welding.

9. A stirring device, characterized in that, The scraper device for wall scraping and stirring as described in any one of claims 1-8 is used.

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