Water treatment agitator

Abstract

The utility model provides a kind of stirrer for water treatment, comprising: hub, it is connected with shaft;And multiple stirrer blades, it is arranged in radial pattern along the circumference of the hub, the stirrer blade includes the first surface, second surface, third surface and fourth surface that the pitch angle gradually increases in the direction from leading edge to trailing edge, stabilizer is combined in the lower surface of the stirrer blade.

Description

Technical Field

[0001] This utility model relates to a water treatment agitator that enables the mechanical rotational energy to be transferred in an equal amount to the entire area of ​​the tank, thereby gradually increasing the size of the resulting flocs. Background Technology

[0002] Agitators play a crucial role in water purification and wastewater treatment plants. The shape of the agitator blades used significantly impacts not only the quality of the water being treated but also the potential operational problems and management aspects. Previously, agitators used for water treatment were general-purpose agitators not specifically developed for water treatment. These agitators exhibited significant velocity energy deviations within the tank. Therefore, when these agitators were used for flocculation in water treatment plants, the highest velocity energy occurred near the blade tips as the blades rotated, while lower velocity energy was transferred to the fluid in the tank walls or bottom. Consequently, the agitation energy required for flocculation was not evenly distributed to the fluid, resulting in substantial velocity deviations within the tank.

[0003] Therefore, in the faster-moving sections, the scum (referring to the tiny particles generated when raw water and chemicals are mixed) formed will break down due to the excessive shear force of the fluid. Furthermore, in the slower-moving sections or dead zones, the inability to flocculate will have a significant impact on water treatment, resulting in reduced water treatment efficiency.

[0004] In addition, conventional agitators have a problem with shaft wobble (skew), which occurs especially when using longer shafts in deeper water. Utility Model Content

[0005] Therefore, this invention is proposed to solve the above problems and aims to provide a water treatment agitator that can gradually increase the size of flocs.

[0006] Furthermore, this invention aims to provide a stirrer that can operate stably.

[0007] Other objectives of this invention will become clearer through the embodiments described below.

[0008] The technical solution of this utility model for solving the above-mentioned problems is as follows.

[0009] This utility model provides a water treatment agitator, comprising: a hub connected to a shaft; and a plurality of agitator blades arranged radially along the circumference of the hub, wherein the agitator blades include a first surface, a second surface, a third surface and a fourth surface whose pitch angle gradually increases from the leading edge to the trailing edge, and a stabilizer is attached to the underside of the agitator blades.

[0010] The first, second, third, and fourth surfaces are distinguished by the first line, the second line, and the third line, respectively.

[0011] The stabilizer is configured parallel to the rotation direction of the stirrer.

[0012] The effects of this utility model are as follows.

[0013] Based on the technical solution of this utility model as described above, various effects including the following can be expected. However, this utility model is not required to achieve all of these effects to be valid.

[0014] This invention provides a stirrer that allows the size of flocs to gradually increase and enables stable operation. Attached Figure Description

[0015] Figure 1 and Figure 2 The figures shown are of a stirrer illustrating one embodiment of the present invention. Detailed Implementation

[0016] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0017] Figure 1 and Figure 2 The figures are of a stirrer 100 illustrating an embodiment of the present invention.

[0018] Reference Figure 1 and Figure 2 The agitator 100 in this embodiment includes a hub 110, a shaft 112, agitator blades 120, and a stabilizer 150.

[0019] The hub 110 is attached to the end of the shaft 112, corresponding to the portion that receives rotational force from the shaft 112. The hub 110 has a cylindrical shape of a specified length, which can be formed to have a larger diameter than the shaft 112.

[0020] Connecting members 114 are joined at predetermined intervals in the circumferential direction of the hub 110. In this embodiment, the agitator 100 is illustrated as having three connecting members 114 joined in the circumferential direction of the hub 110.

[0021] The three agitator blades 120 are characterized in that they are joined at predetermined intervals on the outer circumferential surface of the hub 110 and are bent at predetermined angles along the direction from the leading edge 140 to the trailing edge 142, having a multi-stage bending shape. This shape of the agitator blades 120 reduces the deviation in speed and pressure energy transmitted to the tank when the agitator blades 120 rotate.

[0022] In this embodiment, the agitator blade 120 is composed of four bent surfaces 122, 124, 126, and 128, which are distinguished by three bend lines 123, 125, and 127.

[0023] The first surface 122 and the second surface 124 are distinguished by the first line 123, with the second surface 124 having a larger pitch angle than the first surface 122. Furthermore, the second surface 124 and the third surface 126 are distinguished by the second line 125, with the third surface 126 having a larger pitch angle than the second surface 124. Additionally, the third surface 126 and the fourth surface 128 are distinguished by the third line 127, with the fourth surface 128 having a larger pitch angle than the third surface 126.

[0024] Thus, the agitator blade 120 is characterized by having four surfaces 122, 124, 126, and 128 based on the first line 123, the second line 125, and the third line 127, and the four curved surfaces 122, 124, 126, and 128 having gradually increasing pitch angles along the direction from the leading edge 140 to the trailing edge 142. That is, the first surface 122, including the leading edge 140, has the smallest pitch angle, and the fourth surface 128, including the trailing edge 142, has the largest pitch angle.

[0025] The stirrer blade 120 of this embodiment is designed such that the pitch angle gradually decreases from the connecting member 114 toward the end. Thus, the characteristic is that at the end of the blade, although the moving speed is proportional to the radius and is relatively fast, the pitch angle is small; at the root of the blade (the part that is connected to the connecting member 114), although the moving speed of the blade is slower, the pitch angle is larger, so that the stirring energy generated at the end and root of the stirring blade is uniform.

[0026] A downwardly protruding stabilizer 150 is formed on the underside of the fourth surface 128. The stabilizer 150 is generally plate-shaped, with its upper end formed obliquely in a way that allows it to engage with the underside of the fourth surface 128, and its lower end formed horizontally. The stabilizer 150 with this shape can be attached to the underside of the fourth surface 128 by welding or the like.

[0027] The stabilizer 150 can be attached to the three agitator blades 120 in the same way in terms of size and position. In particular, the stabilizer 150 can be configured parallel to the rotation direction of the agitator blades 120.

[0028] Stabilizer 150 enables the agitator to achieve stable flow and prevents shaft wobble (skew). Furthermore, when using a longer shaft in deeper water, stabilizer 150 ensures stable operation of the agitator.

[0029] Although the present invention has been described above with reference to one embodiment, those skilled in the art will understand that various modifications and alterations can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims.

Claims

1. A water treatment agitator, characterized in that, include: The hub, which connects to the axle; as well as Multiple agitator blades are arranged radially along the circumference of the hub. The agitator blades include a first, second, third, and fourth surface whose pitch angle gradually increases from the leading edge to the trailing edge. A stabilizer is attached below the agitator blades.

2. The agitator for water treatment according to claim 1, characterized in that, The first, second, third, and fourth surfaces are distinguished by the first line, the second line, and the third line, respectively.

3. The agitator for water treatment according to claim 1, characterized in that, The stabilizer is configured parallel to the rotation direction of the stirrer.

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