Double-paddle stirring blade

Abstract

The utility model relates to a double-paddle stirring blade, which comprises a first paddle and a second paddle which are rotationally and symmetrically arranged at the inner edge of a paddle barrel, and the first paddle and the second paddle are L-shaped and are formed by connecting vertical sections and horizontal sections positioned at the lower ends of the vertical sections; one end, far away from the vertical section, of the horizontal section is connected with one end of a paddle baffle strip, an included angle formed by the paddle baffle strip and the slurry facing side of the horizontal section is an obtuse angle, the paddle baffle strips of the first paddle and the second paddle are fixedly connected with each other, and the slurry facing surfaces of the vertical section and the horizontal section are slope surfaces. The double-paddle stirring blade has the advantages that the double-paddle stirring blade is provided with the first paddle and the second paddle which are connected with each other through the paddle barrier strip at the bottom, so that the stirring efficiency can be remarkably improved, and the problem that slurry is easily accumulated at the stirring center when a single paddle is arranged is effectively solved; the two paddles are connected through the paddle barrier strip at the bottom, so that the first paddle and the second paddle are not easy to deform and incline towards the wall of the paddle barrel, and the deformation resistance is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of investment casting technology, specifically relating to a double-bladed stirring blade. Background Technology

[0002] In investment casting, the slurry tanks used in slurry application equipment are typically equipped with a single-sided fixed agitator. During the mixing process, the tank rotates around its central axis driven by a motor, while the agitator inside remains stationary. The slurry is thus mixed by the resistance of the agitator. However, existing single-sided agitator designs have the following drawbacks: insufficient mixing capacity; when mixing high-viscosity liquids, uneven mixing, easy accumulation in the mixing center, and slurry stratification are common problems; when the tank itself is deformed, there is eccentricity during rotation, or the agitator blades deform after prolonged use, the blades can easily scrape against the tank wall, causing damage to the blades or the entire tank. Utility Model Content

[0003] This invention provides a dual-blade stirring blade, which aims to overcome the above-mentioned shortcomings in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A double-blade agitator includes a first blade and a second blade that are symmetrically arranged at the inner edge of the impeller tank. The first blade and the second blade are both L-shaped, formed by connecting a vertical section and a horizontal section located at the lower end of the vertical section. The end of the horizontal section away from the vertical section is connected to one end of the blade baffle. The angle formed between the blade baffle and the impeller-facing side of the horizontal section is an obtuse angle. The blade baffles of the first blade and the second blade are fixedly connected to each other. The impeller-facing surfaces of the vertical section and the horizontal section are both sloping surfaces.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the blade baffles of the first and second blades are in the same plane.

[0007] Furthermore, the two blade baffles are fixedly connected by a connecting piece.

[0008] Furthermore, the blade baffle is provided with a fixing hole, and the two ends of the connecting piece are symmetrically provided with waist-shaped connecting holes. The fixing hole corresponds to the waist-shaped connecting hole and is locked and fixed by an inserted bolt.

[0009] Furthermore, both the vertical segment and the corresponding horizontal segment are hollow structures and are interconnected.

[0010] Furthermore, a horizontally mounted mounting plate is fixedly connected to the upper end of the vertical section.

[0011] Furthermore, several reinforcing ribs are provided vertically on the back surface of the vertical section.

[0012] Furthermore, the angle formed between the slurry-facing surface and the slurry-reverse surface of the vertical section is 45 degrees.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The dual-blade mixing blades provided by this utility model have a first blade and a second blade connected to each other by blade baffles at the bottom, which can significantly improve mixing efficiency and effectively reduce the problem of slurry accumulation at the mixing center when a single blade is set. The first and second blades are connected by blade baffles at the bottom, making the first and second blades less likely to deform or tilt towards the blade barrel wall, enhancing their resistance to deformation and effectively solving the problem of scratching the blade barrel wall due to deformation. The slurry-facing surface is set as a slope, which can more effectively disperse the fluid when mixing and cutting water, reducing fluid resistance and energy consumption. The reinforcing rib design on the back blade increases the blade strength and prevents blade deformation. Attached Figure Description

[0015] Figure 1 An isometric view of a dual-blade stirring blade provided for this utility model;

[0016] Figure 2 for Figure 1 The front view of the twin-blade agitator blades shown;

[0017] Figure 3 for Figure 1 The image shows a top view of the twin-blade agitator.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. First blade; 2. Second blade; 3. Blade baffle; 4. Front side of the propeller; 5. Back side of the propeller; 6. Connecting plate; 7. Waist-shaped connecting hole; 8. Mounting plate; 9. Reinforcing rib. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] In the description of this utility model, if terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", and "outer" are used to indicate the orientation or positional relationship, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figures 1 to 3 As shown, this utility model provides a double-blade agitator, which includes a first blade 1 and a second blade 2 arranged symmetrically at the inner edge of the impeller tank. The first blade 1 and the second blade 2 are both L-shaped, formed by connecting a vertical section and a horizontal section located at the lower end of the vertical section. The end of the horizontal section away from the vertical section is connected to one end of the blade baffle 3. The angle formed between the blade baffle 3 and the impeller-facing side of the horizontal section is an obtuse angle. The blade baffle 3 of the first blade 1 and the second blade 2 are fixedly connected to each other. The impeller-facing surfaces 4 of the vertical section and the horizontal section are both sloping surfaces.

[0023] It should be noted that, as Figure 1 As shown, the vertical and horizontal sections are designed with a sloping side (slurry-facing surface) on the side facing the slurry. The sharp corner at the bottom of the slope directly breaks the incoming slurry, resulting in low resistance and good dispersion of the slurry. The back slurry surface is vertical, which serves to resist the incoming slurry surface from the back slurry side.

[0024] In one embodiment of the present invention, the blade baffles 3 of the first blade 1 and the second blade 2 are in the same plane.

[0025] It should be noted that, as Figure 1 and 3 As shown, the two blade baffles are connected on a straight line and both are in a vertical plane; it can be understood that the center position of the connection between the two blade baffles is the position of the central axis of the paddle bucket (or at least very close to it).

[0026] In one embodiment of this utility model, the two blade baffles 3 are fixedly connected by a connecting piece 6.

[0027] It should be noted that the ends of the two blade baffles away from the horizontal section they are connected to are fixed by a connecting piece, and after fixing, the first and second blades form a whole.

[0028] In one embodiment of this utility model, the blade baffle 3 is provided with a fixing hole, and the two ends of the connecting piece 6 are symmetrically provided with waist-shaped connecting holes 7. The fixing hole corresponds to the waist-shaped connecting hole 7 and is locked and fixed by an inserted bolt.

[0029] It should be noted that the advantage of setting the waist-shaped connecting hole is that when the barrel wall is not round enough or there is a certain eccentricity during rotation, the degree to which the first blade and the second blade approach the center of the barrel (or the distance away from the barrel wall) can be adjusted through the waist-shaped connecting hole, thereby ensuring that the vertical section of the blade does not easily scrape the barrel wall.

[0030] In one embodiment of this utility model, the vertical segment and the corresponding horizontal segment are both hollow structures and are interconnected.

[0031] It should be noted that both the first and second blades are hollow structures, which facilitates the introduction of cooling water into the hollow structure, thereby achieving the effect of rapidly reducing the temperature of the slurry.

[0032] In one embodiment of this utility model, a horizontally arranged mounting plate 8 is fixedly connected to the upper end of the vertical section.

[0033] Understandably, the first blade and / or the second blade can be connected to the fixed bracket set outside the barrel via the mounting plate at the upper end of the vertical section.

[0034] In one embodiment of this utility model, a plurality of reinforcing ribs 9 are provided vertically on the back surface 5 of the vertical section.

[0035] It needs to be explained, such as Figure 1 and 2 As shown, the first vertical segment has three reinforcing ribs spaced apart on the back slurry surface, and the rib plate surface of the reinforcing ribs is perpendicular to the back slurry surface.

[0036] In one embodiment of this utility model, the included angle between the slurry-facing surface 4 and the slurry-returning surface 5 of the vertical section is 45 degrees.

[0037] It is understandable that there is a hollow cavity between the slurry-facing side and the slurry-returning side (the other side of the hollow cavity is the plate surface of the vertical section near the barrel wall or the bottom plate surface of the water surface section), and the cross-section of the hollow cavity is a right-angled triangle.

[0038] The dual-blade agitator provided by this utility model is installed inside the impeller tank, with the first and second blades symmetrically distributed on both radial sides of the impeller tank (e.g., ...). Figure 3 As shown, the slurry tank has a fixed support independent of it. The mounting plates for the first and second blades are connected to the fixed support. When the slurry tank rotates, the blades remain stationary. The relative rotation between the blades and the slurry tank causes the blades to stir and disperse the slurry inside. During stirring, the inclined surfaces of the double blades facing the slurry exert a strong dispersing effect on the fluid. The blades are at a certain angle to create an impact on the stirring center, reducing accumulation at the stirring center. The symmetrical design of the double blades enables bidirectional flow, reducing dead zones and improving mixing uniformity. The reinforcing rib design ensures that the blades do not deform under high loads, extending their service life.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double paddle impeller blade characterized by, The first paddle (1) and the second paddle (2) are symmetrically arranged at the edge of the pulp bucket, and each of the first paddle (1) and the second paddle (2) is L-shaped and connected by a vertical section and a horizontal section at the lower end of the vertical section, one end of the horizontal section away from the vertical section is connected with one end of a paddle baffle (3), an included angle between the paddle baffle (3) and the impingement side of the horizontal section is obtuse, the paddle baffles (3) of the first paddle (1) and the second paddle (2) are fixedly connected with each other, and the impingement sides (4) of the vertical section and the horizontal section are all inclined surfaces.

2. A double paddle mixing blade according to claim 1, wherein The paddle baffles (3) of the first paddle (1) and the second paddle (2) are in the same plane.

3. A double paddle mixing blade according to claim 2, wherein The two paddle baffles (3) are fixedly connected through a connecting sheet (6).

4. A double paddle mixing blade according to claim 3, wherein A fixing hole is formed in the paddle baffle (3), and a waist-shaped connecting hole (7) is symmetrically formed at both ends of the connecting sheet (6), the fixing hole corresponds to the waist-shaped connecting hole (7) and is locked and fixed through an inserted bolt.

5. A double paddle mixing blade according to claim 1, wherein The vertical section and the corresponding horizontal section are both hollow structures and are communicated with each other.

6. A double paddle mixing blade according to claim 1, wherein A horizontally arranged mounting plate (8) is fixedly connected with the upper end of the vertical section.

7. A double paddle mixing blade according to any one of claims 1 to 6, wherein A plurality of reinforcing ribs (9) are vertically arranged on the back impingement side (5) of the vertical section.

8. A double paddle mixing blade according to claim 7, wherein An included angle between the impingement side (4) of the vertical section and the back impingement side (5) is 45 degrees.

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