A multi-stage counter-current agitator

Abstract

The utility model discloses a multistage countercurrent stirrer, including bush, bush is equipped with the stirring vane in the stirring shaft, both sides of bush are equipped with the stirring vane, and two stirring vanes are centrally symmetric and set, the stirring vane includes main blade and vice blade, one end of main blade is fixed in bush, and vice blade is set in the one end of main blade relative to bush, vice blade is formed through bending with main blade, and main blade rotates to left, and vice blade rotates to right, the multistage countercurrent stirrer of the utility model adopts bending whole board material, and the stirring vane that can be formed by main blade and vice blade is formed, and the production and processing of stirring vane do not need to weld, and the integrity of stirring vane is strong, and the intensity is good, and it is easy to process, and the processing efficiency is high.

Description

Technical Field

[0001] This utility model relates to agitator technology, specifically a multi-stage countercurrent agitator. Background Technology

[0002] A stirrer is a device that forces convection and uniformly mixes liquid or gaseous media; the type, size, and rotational speed of the stirrer all affect the distribution of stirring power between the overall flow and turbulent pulsations.

[0003] Traditional multi-stage countercurrent agitators use a composite blade design, with the main blade and auxiliary blade at staggered angles. The main blade rotates to the left and the auxiliary blade rotates to the right, thus generating two flow fields during agitation. However, the main blade and auxiliary blade need to be fixed together by welding with a connecting plate, which results in long processing time, low processing efficiency, and poor overall integrity and strength of the agitator blades. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a multi-stage countercurrent mixer. The mixing blades are formed by bending a single piece of sheet metal, which has strong integrity, good strength, and is easy to process.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a multi-stage countercurrent stirrer, including a sleeve, the sleeve being fitted onto a stirring shaft, stirring blades being provided on both sides of the sleeve, the two stirring blades being centrally symmetrically arranged, the stirring blades including a main blade and an auxiliary blade, one end of the main blade being fixed to the sleeve, the auxiliary blade being disposed at the end of the main blade relative to the sleeve, the auxiliary blade being formed by bending the main blade, the main blade rotating to the left, and the auxiliary blade rotating to the right.

[0006] Preferably, the stirring blades are inclined downwards, and the angle between the stirring blades and the horizontal direction is 7-15 degrees.

[0007] Preferably, the main blade is rotated 45 degrees to the left, and the main blade and the auxiliary blade are arranged perpendicularly.

[0008] Preferably, the bending lines of the main blade and the auxiliary blade extend from the center of the bottom of the main blade to the top of the main blade away from the end of the sleeve.

[0009] Preferably, a reinforcing plate is provided below the main blade, and the end of the reinforcing plate is fixed to the sleeve.

[0010] Preferably, the sleeve includes two arc-shaped plates, the inner wall of the arc-shaped plates is in contact with the outer wall of the stirring shaft, and a fixing part is provided on both sides of the arc-shaped plates. Screw holes are evenly provided on the fixing part, and fastening bolts are passed through the screw holes.

[0011] In summary, this utility model achieves the following technical effects:

[0012] The multi-stage countercurrent mixer of this utility model adopts a bending of a whole plate to form a mixing blade composed of main blades and auxiliary blades. The production and processing of the mixing blade does not require welding. The mixing blade has strong integrity, good strength, and is easy to process with high processing efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the multi-stage countercurrent mixer of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the multi-stage countercurrent mixer of this utility model;

[0015] Explanation of the markings on the attached drawings: 1. Main blade; 2. Secondary blade; 3. Reinforcing plate; 4. Sleeve; 5. Fixing part; 6. Screw hole. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "main axis", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Example 1:

[0023] like Figure 1 As shown in Figure 2, a multi-stage countercurrent mixer includes a sleeve 4, which is fitted onto a stirring shaft. Stirring blades are provided on both sides of the sleeve 4, and the two stirring blades are arranged symmetrically at the center. The stirring blades include a main blade 1 and an auxiliary blade 2. One end of the main blade 1 is fixed to the sleeve 4, and the auxiliary blade 2 is disposed at the end of the main blade 1 opposite to the sleeve 4. The auxiliary blade 2 and the main blade 1 are formed by bending. The main blade 1 rotates to the left, and the auxiliary blade 2 rotates to the right.

[0024] The end of the main blade 1 is bent upward along the bending line by a bending machine to form the secondary blade 2, thereby achieving rapid forming of the stirring blade. Moreover, the stirring blade and the sleeve 4 are fixed by welding, and a reinforcing plate 3 is welded to the back of the main blade 1 to further improve the strength of the stirring blade.

[0025] The multi-stage countercurrent mixer of this utility model adopts a bending of a whole plate to form a mixing blade composed of a main blade 1 and an auxiliary blade 2. The production and processing of the mixing blade does not require welding. The mixing blade has strong integrity, good strength, and is easy to process with high processing efficiency.

[0026] The stirring blades are inclined downwards, and the angle between the stirring blades and the horizontal direction is 7-15 degrees.

[0027] The main blade 1 is rotated 45 degrees to the left, and the main blade 1 and the auxiliary blade 2 are set perpendicularly; during the stirring process, the main blade 1 and the auxiliary blade 2 form two flow fields, one above the other.

[0028] The bending lines of the main blade 1 and the auxiliary blade 2 extend from the center of the bottom of the main blade 1 to the top of the main blade 1 away from the sleeve 4.

[0029] A reinforcing plate 3 is provided below the main blade 1, and the end of the reinforcing plate 3 is fixed to the sleeve 4.

[0030] The sleeve 4 includes two arc-shaped plates. The inner wall of the arc-shaped plates is in contact with the outer wall of the stirring shaft. Fixing parts 5 are provided on both sides of the arc-shaped plates. Screw holes 6 are evenly provided on the fixing parts 5. Fastening bolts are passed through the screw holes 6. The two arc-shaped plates are fixed to the stirring shaft by the cooperation of the fastening bolts and nuts.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A multi-stage countercurrent mixer, characterized in that, The device includes a sleeve fitted onto a stirring shaft. Stirring blades are provided on both sides of the sleeve, and the two stirring blades are arranged symmetrically at the center. Each stirring blade includes a main blade and a secondary blade. One end of the main blade is fixed to the sleeve, and the secondary blade is located at the end of the main blade opposite to the sleeve. The secondary blade and the main blade are formed by bending. The main blade rotates to the left, and the secondary blade rotates to the right.

2. The multi-stage countercurrent mixer according to claim 1, characterized in that, The stirring blades are inclined downwards, and the angle between the stirring blades and the horizontal direction is 7-15 degrees.

3. A multi-stage countercurrent mixer according to claim 1, characterized in that, The main blade is rotated 45 degrees to the left, and the main blade and the auxiliary blade are arranged perpendicularly.

4. A multi-stage countercurrent mixer according to claim 1, characterized in that, The bending lines of the main blade and the auxiliary blade extend from the center of the bottom of the main blade to the top of the main blade away from the sleeve.

5. A multi-stage countercurrent mixer according to claim 1, characterized in that, A reinforcing plate is provided below the main blade, and the end of the reinforcing plate is fixed to the sleeve.

6. A multi-stage countercurrent mixer according to claim 1, characterized in that, The sleeve includes two arc-shaped plates. The inner wall of the arc-shaped plates is in contact with the outer wall of the stirring shaft. Fixing parts are provided on both sides of the arc-shaped plates. Screw holes are evenly provided on the fixing parts, and fastening bolts are inserted through the screw holes.

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