V-type agitator for chemical production

Abstract

The utility model belongs to the technical field of agitator, specifically relates to a V -shaped agitator for chemical production, and the new type includes: the stirring axle and at least two stirring vane, wherein two stirring vanes circular array settings are in the lower part of stirring axle, two stirring vanes are " V " shape settings between, and the stirring vane is semicircular, to guide liquid upward movement when stirring axle rotates, the V -shaped agitator for chemical production is through the stirring vane semicircular, and two stirring vanes are " V " shape settings between, to form the fluid thrust of upward when stirring axle rotates, the liquid at the bottom of kettle body is " copied up " upward, guides liquid to the direction of kettle body inner wall movement, solved the problem that liquid is difficult to contact kettle wall heating surface after traditional anchor frame type agitator liquid level reduces, significantly improves heat exchange area and heat transfer efficiency, and then promotes evaporation rate and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agitator technology, specifically relating to a V-type agitator for chemical production. Background Technology

[0002] As a key piece of equipment in chemical production, agitators are widely used in processes such as mixing (e.g., blending, emulsification, dispersion, solid-liquid suspension), mass transfer (e.g., dissolution, gas absorption, crystallization, extraction, leaching), heat transfer (e.g., heating, cooling), energy transfer, and reaction.

[0003] In existing technologies, anchor-type and frame-type agitators are collectively referred to as anchor-frame agitators. Their impeller diameter to tank diameter ratio is relatively large: for low-viscosity liquids, the ratio is 0.7–0.9; for high-viscosity liquids, the ratio is 0.8–0.95, and the rotational speed is typically 10–50 r / min. To increase the mixing range and remove residues or liquid layers from the tank walls, the outer contour of the anchor-frame agitator is close to the inner wall of the mixing tank, and the bottom shape is adapted to the tank bottom profile (such as elliptical, conical, etc.). Furthermore, the mixing range for high-viscosity materials and the impeller rigidity are often improved by adding vertical blades and crossbeams, resulting in diverse structural shapes.

[0004] Frame-type stirrers, due to their small gap with the reactor wall, are beneficial for heat transfer: during rapid rotation, the blades drive the liquid to remove the stagnant layer on the reactor wall; during slow rotation, the stirrer with scrapers can achieve good heat conduction. However, during evaporation, when the liquid level is lower than the jacket or coil, the contact area between the liquid and the heating surface is significantly reduced, leading to a decrease in evaporation efficiency.

[0005] Therefore, in order to solve the above problems, it is necessary to design a V-type agitator for chemical production. Utility Model Content

[0006] The purpose of this invention is to provide a V-type agitator for chemical production to solve the technical problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a V-type agitator for chemical production, comprising: A stirring shaft and at least two stirring blades; wherein The two circular arrays of stirring blades are arranged at the lower part of the stirring shaft; The two stirring blades are arranged in a "V" shape; and The stirring blades are semi-circular to guide the liquid upward as the stirring shaft rotates.

[0008] Furthermore, a steel sleeve is fitted onto the lower part of the stirring shaft; The two circular arrays of stirring blades are arranged on the outside of the steel sleeve.

[0009] Furthermore, the outer surfaces of the stirring shaft, steel sleeve, and each stirring blade are provided with an enamel layer; wherein... The enamel layer is integrally formed on the stirring shaft, steel sleeve, and each stirring blade.

[0010] Furthermore, the angle between the stirring blade and the stirring shaft is 15° to 60°.

[0011] Furthermore, the angle between the opening of the stirring blade and the vertical plane is 20° to 60°.

[0012] Furthermore, the root radius of the stirring blade is larger than the end radius of the stirring blade; wherein The ratio of the root radius to the end radius is 1:0.8 to 1:1.

[0013] The beneficial effects of this utility model are: (I) This utility model uses a semi-circular stirring blade with a "V" shape between the two stirring blades to generate an upward fluid thrust when the stirring shaft rotates, which "lifts" the liquid at the bottom of the vessel upward and guides the liquid to move towards the inner wall of the vessel. This solves the problem that the liquid is difficult to contact the heating surface of the vessel wall after the liquid level drops in the traditional anchor frame stirrer, significantly improving the heat exchange area and heat transfer efficiency, thereby improving the evaporation rate and production efficiency.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 The three-dimensional representation of the preferred embodiment of this utility model. Figure 1 ; Figure 2 The three-dimensional representation of the preferred embodiment of this utility model. Figure 2 ; Figure 3This is a perspective view of a preferred embodiment of the stirring blade and steel sleeve of this utility model.

[0018] In the picture: 1. Stirring shaft; 2. Stirring blades; 3. Steel sleeve; The angle A between the stirring blades and the stirring shaft; The opening of the stirring blade faces an angle B with the vertical plane; Radius C of the agitator blade root; The radius D of the tip of the stirring blade. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0020] like Figures 1 to 3 As shown, this embodiment provides a V-type agitator for chemical production, comprising: The system comprises a stirring shaft 1 and at least two stirring blades 2; wherein two of the stirring blades 2 are arranged in a circular array at the lower part of the stirring shaft 1; the two stirring blades 2 are arranged in a "V" shape; and the stirring blades 2 are semi-circular to guide the liquid upward when the stirring shaft 1 rotates; wherein four stirring blades 2 are the most preferred, the four-blade structure can maintain a good stirring effect even when the rotation speed is reduced (reducing the rotation speed can reduce power consumption), achieve energy-saving operation, and reduce production energy consumption costs; wherein, by making the stirring blades 2 semi-circular, compared with traditional flat blades, the frictional resistance with the liquid can be effectively reduced during rotation, reducing the energy consumption of the drive device and achieving the effect of energy saving.

[0021] In this embodiment, the stirring blades 2 are semi-circular and arranged in a "V" shape between the two stirring blades 2, so that when the stirring shaft 1 rotates, an upward fluid thrust is generated to "scoop up" the liquid at the bottom of the vessel and guide the liquid to move towards the inner wall of the vessel. This solves the problem that the liquid is difficult to contact the heating surface of the vessel wall after the liquid level drops in the traditional anchor frame stirrer, significantly improving the heat exchange area and heat transfer efficiency, thereby improving the evaporation rate and production efficiency.

[0022] A steel sleeve 3 is fitted onto the lower part of the stirring shaft 1; two stirring blades 2 are arranged in a circular array on the outside of the steel sleeve 3; the steel sleeve 3 is tightly fitted onto the stirring shaft 1 to enhance the structural strength of the lower part of the stirring shaft 1 and prevent the stirring shaft 1 from deforming due to the radial force generated by the rotation of the stirring blades 2; at the same time, the stirring blades 2 are fixed to the outside of the steel sleeve 3 in a circular array, and the steel sleeve 3 provides a stable mounting carrier for the stirring blades 2, ensuring the positional accuracy and connection reliability of the stirring blades 2 when rotating at high speed, and facilitating the installation of the stirring blades 2.

[0023] The outer sides of the stirring shaft 1, steel sleeve 3, and each stirring blade 2 are provided with an enamel layer; wherein the enamel layer is integrally formed on the stirring shaft 1, steel sleeve 3, and each stirring blade 2; wherein by integrally forming the enamel layer on the stirring shaft 1, steel sleeve 3, and each stirring blade 2, the stirrer is made corrosion-resistant, high-temperature resistant, and the adhesion of materials on the surface of the components is reduced, thereby reducing the difficulty of cleaning.

[0024] The angle between the stirring blade 2 and the stirring shaft 1 is 15° to 60°; among which, an angle of 30° between the stirring blade 2 and the stirring shaft 1 is the most preferred.

[0025] The angle between the opening of the stirring blade 2 and the vertical plane is 20° to 60°; wherein, the angle between the opening of the stirring blade 2 and the vertical plane is 45° is the most preferred.

[0026] In this embodiment, the angle between the stirring blade 2 and the stirring shaft 1 is 30°, and the angle between its opening and the vertical plane is 45°, so as to ensure that the liquid is evenly thrown onto the jacket or coil area of ​​the inner wall of the vessel, maximizing the contact area between the liquid and the heating surface.

[0027] The root radius of the stirring blade 2 is greater than the end radius of the stirring blade 2; wherein the ratio of the root radius to the end radius is 1:0.8 to 1:1; wherein a ratio of 1:0.87 is the most preferred; wherein the root is beveled to increase the contact area, enhance the connection strength with the steel sleeve 3, and prevent breakage due to excessive force during rotation; wherein a larger root radius can push more liquid; wherein a smaller end radius reduces fluid resistance and ensures the accuracy of the liquid projection range.

[0028] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A V-type agitator for chemical production, characterized in that, include: A stirring shaft (1) and at least two stirring blades (2); in The two stirring blades (2) are arranged in a circular array at the lower part of the stirring shaft (1); The two stirring blades (2) are arranged in a "V" shape; and The stirring blade (2) is semi-circular to guide the liquid upward when the stirring shaft (1) rotates.

2. The V-type agitator for chemical production as described in claim 1, characterized in that, The lower part of the stirring shaft (1) is fitted with a steel sleeve (3). The two stirring blades (2) are arranged in a circular array on the outside of the steel sleeve (3).

3. The V-type agitator for chemical production as described in claim 2, characterized in that, The outer sides of the stirring shaft (1), steel sleeve (3), and each stirring blade (2) are provided with an enamel layer; wherein The enamel layer is integrally formed on the stirring shaft (1), the steel sleeve (3) and each stirring blade (2).

4. The V-type agitator for chemical production as described in claim 2, characterized in that, The angle between the stirring blade (2) and the stirring shaft (1) is 15° to 60°.

5. The V-type agitator for chemical production as described in claim 1, characterized in that, The opening of the stirring blade (2) is oriented at an angle of 20° to 60° with respect to the vertical plane.

6. The V-type agitator for chemical production as described in claim 1, characterized in that, The root radius of the stirring blade (2) is greater than the end radius of the stirring blade (2); wherein The ratio of the root radius to the end radius is 1:0.8 to 1:1.

Images