Stirrer blade and stirrer
By adopting a combined structure of a metal substrate, an elastic layer and a carbon fiber layer in the agitator blade, the elastic layer absorbs the thermal expansion difference and the protrusions enhance the connection, the material peeling problem of the agitator blade is solved, and the service life is extended and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202421747554.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing stirrer blades have short service life in reactions of highly corrosive and abrasive materials, limited abrasive resistance, and the difference in thermal expansion coefficients between metal and carbon fiber materials leads to the coating falling off, and the service life is limited.
It adopts a metal substrate, elastic layer and carbon fiber layer structure, which provides strength, the carbon fiber layer resists corrosion and abrasion, and the elastic layer absorbs thermal expansion poorly. It strengthens the connection through the protruding parts. The overall structure is simple and the service life is extended.
It effectively solves the problem of material peeling, extends the service cycle of the agitator blades, reduces maintenance costs, and only needs to repair the carbon fiber layer.
Smart Images
Figure CN223112816U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical equipment, in particular to an agitator blade and an agitator. Background Art
[0002] Reaction systems are often used in chemical production enterprises, and agitators are commonly used to stir materials during the material reaction process. For example, but not limited to, in the mixing reaction process of phosphoric acid system pulp, phosphoric acid and sulfuric acid, since the materials usually have strong corrosiveness and abrasiveness, it will cause severe corrosion and wear of the agitator blades.
[0003] In the prior art, the agitator blades generally use corrosion-resistant materials such as 316L, 904L or CD4Mu, but the abrasion-resistant performance is limited. Usually, about six months after the installation of new blades, the blades will be abraded and thinned and shortened, resulting in a decrease in stirring force, uneven medium reaction, and a decrease in product quality. It can only be used for a period of time after repair by welding.
[0004] To extend the service life of the agitator blades, there is little room for improvement in metal materials. Among non-metal materials, carbon fiber materials have high hardness and good corrosion resistance, but when directly used to make blades, they are prone to breakage due to insufficient strength. Combining the advantages and disadvantages of metal materials and carbon fiber materials, a carbon fiber material layer can be coated on the surface of metal materials to improve corrosion and abrasion resistance. However, due to the inevitable corrosion, abrasion and high temperature conditions in the reaction tank, the working temperature of the agitator blades is relatively high. The thermal expansion coefficients of metal materials and carbon fiber materials are different, and the two materials are difficult to withstand high temperature and erosion only by adhesion force. Under the action of thermal expansion and running wear and erosion, the carbon fiber material coating is prone to fall off, and the service life is limited. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an agitator blade and an agitator to solve the problems existing in the above-mentioned prior art and effectively extend the service life.
[0006] To achieve the above purpose, the utility model provides the following scheme:
[0007] The utility model provides an agitator blade, which includes a metal substrate, an elastic layer and a carbon fiber layer. The elastic layer is fixedly covered on the outer surface of the metal substrate, and the carbon fiber layer is fixedly covered on the outer surface of the elastic layer; there are a number of protrusions on the outer surface of the metal substrate, and each protrusion passes through the elastic layer and is embedded in the carbon fiber layer.
[0008] Preferably, a number of connection holes are provided on the metal substrate, and each connection hole can communicate the upper surface and the lower surface of the metal substrate.
[0009] Preferably, carbon fiber connecting columns are fixedly filled in each of the connecting holes. One end of each carbon fiber connecting column is fixedly connected to the carbon fiber layer on the upper surface of the metal substrate, and the other end of each carbon fiber connecting column is fixedly connected to the carbon fiber layer on the lower surface of the metal substrate.
[0010] Preferably, the carbon fiber layer and each of the carbon fiber connecting columns are integrally formed.
[0011] Preferably, through holes are formed in the protruding portions.
[0012] Preferably, the metal substrate is a stainless steel substrate.
[0013] The present utility model further provides a stirrer, including the stirrer blade as described above.
[0014] The present utility model has achieved the following technical effects compared with the prior art:
[0015] For the stirrer blade and the stirrer provided by the present utility model, during operation, the metal substrate provides strength to stabilize the shape, and the carbon fiber layer is responsible for corrosion resistance, abrasion resistance, resisting medium erosion and wear. The combination of the metal substrate, the elastic layer and the carbon fiber layer improves the service life of the stirrer blade. By providing an elastic layer between the metal substrate and the carbon fiber layer, the thermal expansion difference between the metal substrate and the carbon fiber layer is absorbed by using the elasticity of the elastic layer. By providing a plurality of protruding portions on the outer surface of the metal substrate, each protruding portion passes through the elastic layer and is embedded in the carbon fiber layer, strengthening the stable and firm connection between the carbon fiber layer and the metal substrate. The overall structure is simple, which can effectively solve the problems of different thermal expansion coefficients of the two materials of the metal substrate and the carbon fiber layer and the insufficient adhesion force of the materials resulting in detachment, can effectively extend the service cycle, and even if the carbon fiber layer cracks, no detachment phenomenon will occur. Moreover, during repair, only the carbon fiber layer needs to be repaired, and the maintenance cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a schematic diagram of the stirrer blade provided by the present utility model;
[0018] Figure 2 is Figure 1 a schematic diagram of the metal substrate in
[0019] In the figure: 1 - metal substrate, 2 - elastic layer, 3 - carbon fiber layer, 4 - protrusion, 5 - connection hole, 6 - carbon fiber connection column, 7 - through hole. Specific implementation manner
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0021] The purpose of the present invention is to provide a stirrer blade and a stirrer to solve the problems existing in the above-mentioned prior art and effectively extend the service life.
[0022] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0023] Embodiment 1
[0024] As Figure 1 - Figure 2 shown, this embodiment provides a stirrer blade, including a metal substrate 1, an elastic layer 2, and a carbon fiber layer 3. The elastic layer 2 is fixedly covered on the outer surface of the metal substrate 1, and the carbon fiber layer 3 is fixedly covered on the outer surface of the elastic layer 2; there are several protrusions 4 on the outer surface of the metal substrate 1, and each protrusion 4 passes through the elastic layer 2 and is embedded in the carbon fiber layer 3.
[0025] For the stirrer blade provided in this embodiment, during operation, the metal substrate 1 provides strength to stabilize the shape, and the carbon fiber layer 3 is responsible for corrosion resistance, abrasion resistance, and resistance to medium erosion and wear. The combination of the metal substrate 1, the elastic layer 2, and the carbon fiber layer 3 improves the service life of the stirrer blade. By providing an elastic layer 2 between the metal substrate 1 and the carbon fiber layer 3, the elasticity of the elastic layer 2 is used to absorb the thermal expansion difference between the metal substrate 1 and the carbon fiber layer 3. By providing several protrusions 4 on the outer surface of the metal substrate 1, and each protrusion 4 passes through the elastic layer 2 and is embedded in the carbon fiber layer 3, the carbon fiber layer 3 is strengthened to be stably and firmly connected to the metal substrate 1. The overall structure is simple, which can effectively solve the problems of different thermal expansion coefficients of the two materials of the metal substrate 1 and the carbon fiber layer 3 and the insufficient adhesion force of the materials resulting in detachment, and can effectively extend the service life. Even if the carbon fiber layer 3 cracks, it will not fall off, and only the carbon fiber layer 3 needs to be repaired during repair, and the maintenance cost is relatively low.
[0026] As a relatively preferred implementation manner of this embodiment, the elastic layer 2 is made of a corrosion-resistant material, such as rubber, etc.
[0027] Furthermore, a plurality of connection holes 5 are formed in the metal substrate 1. Each connection hole 5 can communicate the upper surface and the lower surface of the metal substrate 1. The connection holes 5 are unevenly distributed, which can effectively reduce the expansion stress of the metal substrate 1.
[0028] Furthermore, carbon fiber connection columns 6 are fixedly filled in each connection hole 5. One end of each carbon fiber connection column 6 is fixedly connected to the carbon fiber layer 3 on the upper surface of the metal substrate 1, and the other end of each carbon fiber connection column 6 is fixedly connected to the carbon fiber layer 3 on the lower surface of the metal substrate 1, which increases the bonding reliability between the two materials of the metal substrate 1 and the carbon fiber layer 3.
[0029] As a relatively preferred implementation manner of this embodiment, the carbon fiber layer 3 and each carbon fiber connection column 6 are integrally formed, which has strong integrity, is simple to manufacture, and has a firm connection.
[0030] Furthermore, through holes 7 are formed in the convex portion 4 so that the carbon fiber layer 3 can pass through the through holes 7 during the forming process, strengthening the connection stability between the convex portion 4 and the carbon fiber layer 3; as a relatively preferred implementation manner of this embodiment, the convex portion 4 is a stainless steel bar U-shaped buckle, which is welded to the outer surface of the metal substrate 1, and has a simple structure and is convenient to manufacture.
[0031] As a relatively preferred implementation manner of this embodiment, the metal substrate 1 is a stainless steel substrate, which has strong corrosion and abrasion resistance.
[0032] Embodiment Two
[0033] This embodiment provides a stirrer, including the stirrer blade in Embodiment One.
[0034] In the stirrer provided in this embodiment, during the operation process, the metal substrate 1 provides strength to stabilize the shape, and the carbon fiber layer 3 is responsible for corrosion and abrasion resistance, resisting medium scouring and wear. The combination of the metal substrate 1, the elastic layer 2 and the carbon fiber layer 3 improves the service life of the stirrer blade. By providing an elastic layer 2 between the metal substrate 1 and the carbon fiber layer 3, the elasticity of the elastic layer 2 is used to absorb the thermal expansion difference between the metal substrate 1 and the carbon fiber layer 3. By providing a plurality of convex portions 4 on the outer surface of the metal substrate 1, each convex portion 4 passes through the elastic layer 2 and is embedded in the carbon fiber layer 3, strengthening the stable and firm connection between the carbon fiber layer 3 and the metal substrate 1. The overall structure is simple, which can effectively solve the problems of different thermal expansion coefficients of the two materials of the metal substrate 1 and the carbon fiber layer 3 and the peeling problem caused by insufficient material adhesion force, can effectively extend the service cycle, and even if the carbon fiber layer 3 cracks, it will not fall off, and only the carbon fiber layer 3 needs to be repaired during repair, and the maintenance cost is relatively low.
[0035] In this utility model, specific examples are used to elaborate on the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation mode and application scope. To sum up, the content of this specification should not be construed as a limitation of the utility model.
Claims
1. A blender blade, characterized in that: It includes a metal substrate, an elastic layer, and a carbon fiber layer. The elastic layer is fixedly covered on the outer surface of the metal substrate, and the carbon fiber layer is fixedly covered on the outer surface of the elastic layer. There are a number of protrusions on the outer surface of the metal substrate, and each of the protrusions passes through the elastic layer and is embedded in the carbon fiber layer.
2. The agitator blade according to claim 1, wherein: A number of connection holes are formed on the metal substrate, and each of the connection holes can communicate the upper surface and the lower surface of the metal substrate.
3. The agitator blade according to claim 2, wherein: Each of the connection holes is fixedly filled with a carbon fiber connection column. One end of each of the carbon fiber connection columns is fixedly connected to the carbon fiber layer on the upper surface of the metal substrate, and the other end of each of the carbon fiber connection columns is fixedly connected to the carbon fiber layer on the lower surface of the metal substrate.
4. The agitator blade according to claim 3, wherein: The carbon fiber layer and each of the carbon fiber connection columns are integrally formed.
5. The agitator blade according to claim 1, wherein: A through hole is formed on the protrusion.
6. The agitator blade according to claim 1, wherein: The metal substrate is a stainless steel substrate.
7. A stirrer, characterized in that: It includes the agitator blade according to any one of claims 1-6.