CN220758739U - Stirring paddle - Google Patents
Stirring paddle Download PDFInfo
- Publication number
- CN220758739U CN220758739U CN202321633421.9U CN202321633421U CN220758739U CN 220758739 U CN220758739 U CN 220758739U CN 202321633421 U CN202321633421 U CN 202321633421U CN 220758739 U CN220758739 U CN 220758739U
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- CN
- China
- Prior art keywords
- blade
- transmission shaft
- utility
- model
- stirring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003756 stirring Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000005452 bending Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000009854 hydrometallurgy Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
The utility model relates to a stirring paddle, which comprises a transmission shaft and a plurality of paddles, wherein the transmission shaft is connected with the output end of a power device; the blades are fixed on the transmission shaft through the connecting fixing piece, and the section of any blade in the radial direction of the transmission shaft is S-shaped. According to the utility model, the blade is subjected to hydrodynamic optimization, so that the vortex near the blade root is eliminated, the centralized abrasion of solid particle-containing materials to the blade root is avoided, the service life of the stirring paddle is prolonged, the maintenance cost of stirring equipment is reduced, and meanwhile, the stirring device has the characteristics of simple structure and easiness in manufacturing.
Description
Technical Field
The utility model relates to the technical field of chemical machinery, in particular to a stirring paddle.
Background
In the hydrometallurgical process, the pulp is subjected to a pressure leaching process in a high-temperature and high-pressure stirred tank reactor. Pulp is a high solids-liquid mixture that wears abnormally severely on the paddles of the stirring paddles during the production process.
At present, the stirring paddles used in hydrometallurgy are often made of wear-resistant alloy materials, or wear resistance of the stirring paddles is improved by adding a coating on the surfaces of the paddles, performing heat treatment on the paddles and the like. However, the above method has high investment cost, complex processing process and poor economy.
Therefore, how to improve the wear resistance of the stirring paddles under a solid-liquid material system is still a technical problem to be solved.
Disclosure of Invention
In order to solve the technical problems in the prior art, the utility model aims to provide the stirring paddle which is simple in structure, easy to manufacture and suitable for hydrometallurgical processes of high-solid-content materials and high-strength stirring.
In order to achieve the above object, the present utility model provides a stirring paddle comprising:
the transmission shaft is connected with the output end of the power device;
the blades are fixed on the transmission shaft through connecting fixing pieces, and the section of any blade in the radial direction of the transmission shaft is S-shaped.
According to one aspect of the present utility model, the connection fixture includes:
the hub is sleeved on the transmission shaft and fixed;
the disc is fixedly connected with the outer annular surface of the hub, and a plurality of blades are fixed on the disc.
According to one technical scheme of the utility model, a plurality of paddles are vertically and equidistantly fixed on the outer edge of the disc.
According to one technical scheme of the utility model, the blade width of the blade is 0.15-0.45D, the outer bending radius of the blade is 0.05-0.15D, the inner bending radius of the blade is 0.1-0.3D, the inner and outer bending center distance of the blade is 0.2-0.4D, the diameter of the disc is 0.3-0.8D,
wherein D is the diameter of the blade at the extreme edge away from the drive shaft.
According to one technical scheme of the utility model, the blade width of the blade is 0.2-0.35D, the outer bending radius of the blade is 0.08-0.12D, the inner bending radius of the blade is 0.15-0.25D, the inner and outer bending center distance of the blade is 0.3-0.35D, and the diameter of the disc is 0.6-0.8D.
According to one technical scheme of the utility model, the number of the paddles is 4-8.
According to one technical scheme of the utility model, the surface of the blade is provided with a hard alloy coating.
Compared with the traditional straight blade turbine blade, the utility model has the following beneficial effects:
the blade provided by the utility model is subjected to hydrodynamic optimization, so that vortexes near the blade root are eliminated, centralized abrasion of solid particle-containing materials to the blade root is avoided, the service life of the stirring paddle is prolonged, the maintenance cost of stirring equipment is reduced, and meanwhile, the blade has the characteristics of simple structure and easiness in manufacturing.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 schematically illustrates a perspective view of a stirring paddle in an embodiment of the utility model;
FIG. 2 schematically illustrates a schematic view of a blade distribution of a stirring paddle in an embodiment of the utility model;
FIG. 3 schematically illustrates a flow chart around a conventional six-straight blade turbine blade;
fig. 4 schematically shows a flow chart around the stirring paddle blade of the present utility model.
The correspondence between the reference numerals and the component names in fig. 1 to 4 is:
1. a transmission shaft; 2. a hub; 3. a paddle; 4. a disc; 31. a first bending part; 32. and a second bending part.
Detailed Description
The description of the embodiments of this specification should be taken in conjunction with the accompanying drawings, which are a complete description of the embodiments. In the drawings, the shape or thickness of the embodiments may be enlarged and indicated simply or conveniently. Furthermore, portions of the structures in the drawings will be described in terms of separate descriptions, and it should be noted that elements not shown or described in the drawings are in a form known to those of ordinary skill in the art.
Any references to directions and orientations in the description of the embodiments herein are for convenience only and should not be construed as limiting the scope of the utility model in any way. The following description of the preferred embodiments will refer to combinations of features, which may be present alone or in combination, and the utility model is not particularly limited to the preferred embodiments. The scope of the utility model is defined by the claims.
As shown in fig. 1 and 2, a stirring paddle of the present utility model includes:
the transmission shaft 1 is connected with the output end of the power device, for example, the power output device is a motor, and the motor is connected with the transmission shaft 1 through a shaft connecting device;
the plurality of paddles 3 are fixed on the transmission shaft 1 through connecting fixing pieces, and the section of any paddle 3 along the radial direction of the transmission shaft 1 is S-shaped.
In the embodiment, through computational fluid dynamics software simulation, the streamline distribution situation of the traditional straight blade turbine blade and the stirring blade of the utility model near the blade 3 is simulated, as shown in fig. 3, a vortex exists at the root of each blade 3 of the traditional straight blade turbine blade, when solid particle-containing materials are stirred, the abrasion near the root of the blade 3 is particularly serious, as shown in fig. 4, the vortex is eliminated at the root of the stirring blade, the problem of concentrated abrasion of the solid particle-containing materials to the root of the blade 3 is solved, the service life of the stirring blade is prolonged, the maintenance cost of stirring equipment is reduced, the structure is simple, and the production is easy.
In one embodiment of the present utility model, preferably, the connection fixture includes:
the hub 2 is sleeved on the transmission shaft 1 and fixed;
the disc 4 is fixedly connected with the outer annular surface of the hub 2, and a plurality of blades 3 are fixed on the disc 4.
In this embodiment, the blade 3 is provided with a slot, the slot being sized to fit the disk 4, the disk 4 being inserted into the slot and fixedly connected to the blade 3, e.g. welded or the like. It can be understood that the blades 3 are located at two sides of the disc 4, or the blades 3 are fixed at two sides, and the upper and lower blades 3 can be located at the same position or in a staggered manner.
The hub 2 serves, among other things, to more stably fix the disc 4 to the drive shaft 1.
In addition, the S-shaped blade 3 includes a first bending portion 31 and a second bending portion 32, where the first bending portion 31 is fixedly connected with the disc 4, and a bending angle of the first bending portion 31 is slightly smaller than that of the second bending portion 32, and a total length of the first bending portion 31 is slightly larger than that of the second bending portion 32.
In one embodiment of the utility model, preferably a plurality of paddles 3 are perpendicularly and equidistantly fixed to the outer edge of the disc 4.
In one embodiment of the present utility model, it is preferable that the blade width of the blade 3 is 0.15 to 0.45D, the outer bending radius of the blade 3 is 0.05 to 0.15D, the inner bending radius of the blade 3 is 0.1 to 0.3D, the inner and outer bending center distance of the blade 3 is 0.2 to 0.4D, the diameter of the disk 4 is 0.3 to 0.8D,
where D is the diameter of the blade 3 at the extreme edge away from the drive shaft 1.
In one embodiment of the present utility model, it is preferable that the blade width of the blade 3 is 0.2 to 0.35D, the outer bending radius of the blade 3 is 0.08 to 0.12D, the inner bending radius of the blade 3 is 0.15 to 0.25D, the inner and outer bending center distance of the blade 3 is 0.3 to 0.35D, and the diameter of the disk 4 is 0.6 to 0.8D.
In one embodiment of the utility model, the number of blades 3 is preferably 4 to 8, preferably 6.
In one embodiment of the utility model, preferably, the surface of the blade 3 is provided with a hard alloy coating, and it is understood that not only the surface of the blade 3 is provided with the coating, but also the surface of the whole stirring paddle can be sprayed with the 2mm hard alloy coating, so that the wear resistance of the stirring paddle is further improved.
The stirring paddle is used for replacing the traditional six-straight-blade turbine paddle to stir solid particle-containing materials, and can still normally operate after continuously working for 6 months under the same working condition, and the disc of the traditional six-straight-blade turbine paddle is worn out and cannot normally operate.
The utility model relates to a stirring paddle, which comprises a transmission shaft and a plurality of paddles, wherein the transmission shaft is connected with the output end of a power device; the blade is fixed on the transmission shaft through the connecting fixing piece, the cross section of any blade in the radial direction of the transmission shaft is S-shaped, and the blade is subjected to hydrodynamic optimization, so that vortexes near the root of the blade are eliminated, the centralized abrasion of solid particle-containing materials to the root of the blade is avoided, the service life of the stirring blade is prolonged, the maintenance cost of stirring equipment is reduced, and meanwhile, the stirring device has the characteristics of simple structure and easiness in manufacturing.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.
Claims (3)
1. A paddle, comprising:
the transmission shaft (1) is connected with the output end of the power device;
a plurality of paddles (3) fixed on the transmission shaft (1) through a connecting fixing piece, wherein the cross section of any paddle (3) along the radial direction of the transmission shaft (1) is S-shaped;
the connection fixture includes:
the hub (2) is sleeved on the transmission shaft (1) and fixed;
the disc (4) is fixedly connected with the outer annular surface of the hub (2), and a plurality of blades (3) are fixed on the disc (4);
the blade width of the blade (3) is 0.2-0.35D, the outer bending radius of the blade (3) is 0.08-0.12D, the inner bending radius of the blade (3) is 0.15-0.25D, the inner and outer bending center distances of the blade (3) are 0.3-0.35D, and the diameter of the disc (4) is 0.6-0.8D;
d is the diameter of the blade (3) at the extreme edge away from the transmission shaft (1);
the surface of the blade (3) is provided with a hard alloy coating.
2. Stirring paddle according to claim 1, characterized in that a plurality of said blades (3) are fixed perpendicularly and equidistantly to the outer edge of the disc (4).
3. Stirring paddle according to claim 1, characterized in that the number of paddles (3) is 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321633421.9U CN220758739U (en) | 2023-06-26 | 2023-06-26 | Stirring paddle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321633421.9U CN220758739U (en) | 2023-06-26 | 2023-06-26 | Stirring paddle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220758739U true CN220758739U (en) | 2024-04-12 |
Family
ID=90617863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321633421.9U Active CN220758739U (en) | 2023-06-26 | 2023-06-26 | Stirring paddle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220758739U (en) |
-
2023
- 2023-06-26 CN CN202321633421.9U patent/CN220758739U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |