CN211159708U - Stirrer for reaction kettle - Google Patents
Stirrer for reaction kettle Download PDFInfo
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- CN211159708U CN211159708U CN201921172647.7U CN201921172647U CN211159708U CN 211159708 U CN211159708 U CN 211159708U CN 201921172647 U CN201921172647 U CN 201921172647U CN 211159708 U CN211159708 U CN 211159708U
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Abstract
The utility model belongs to the technical field of stirrers, and discloses a stirrer for a reaction kettle, which comprises a stirring shaft, at least one main stirring paddle, and an auxiliary stirring paddle for increasing the axial motion of fluid; the auxiliary stirring paddle is arranged at the bottom end of the stirring shaft below the main stirring paddle; the stirring diameter D' of the auxiliary stirring paddle meets the following requirements: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle. The utility model discloses an auxiliary stirring rake can disturb the reaction material flow state around the (mixing) shaft, breaks the vortex district of (mixing) shaft below, ensures in short time that reaction material just can play better mixed effect, reduces the energy consumption, has solved current agitator when the stirring, because the vortex district of below formation, and makes fluidic tangential flow volume many, and axial flow accounts for the problem that reduces.
Description
Technical Field
The utility model belongs to the technical field of the agitator, concretely relates to agitator for reation kettle.
Background
In chemical production, stirring is widely applied to the processes of mixing, dispersing, extracting, crystallizing and the like of materials as an important technological process, and a stirrer is a core component in a reaction kettle and has the function of providing power required by mixed flow and manufacturing a proper flowing state. The anchor type, paddle type and hinge turbine type stirrers widely used in the precipitation crystallization reaction kettle in the current production process of the precursor of the anode material generate axial flow in the stirring process to promote mixing and reaction, but a vortex area is inevitably formed below the stirrer, so that the tangential flow of fluid is increased, the axial flow is reduced, and the circular mixing and reaction of materials are not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the problem that the tangential flow of the fluid is large and the axial flow accounts for the reduction because a vortex region is formed below the existing stirrer during stirring, the utility model provides a stirrer for a reaction kettle, which can increase the axial and radial flow of the reaction materials in the reaction kettle.
A stirrer for a reaction kettle comprises a stirring shaft, at least one main stirring paddle and an auxiliary stirring paddle for increasing the axial movement of fluid;
an auxiliary stirring paddle is arranged below the main stirring paddle and at the bottom end of the stirring shaft;
the stirring diameter D' of the auxiliary stirring paddle meets the following requirements: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle.
Preferably, the distance H between the auxiliary stirring paddle and the main stirring paddle next to the auxiliary stirring paddle satisfies the following conditions: h is more than 0.3D and less than 0.6D.
Preferably, the main paddle includes: the main shaft sleeve assembly is sleeved on the stirring shaft, and the main torsion type stirring blades are uniformly arranged on the main shaft sleeve assembly in a surrounding manner, and the radial torsion angle of the main torsion type stirring blades is 15-45 degrees;
the main torsional stirring blades are radial, and the included angle between the connection starting end of the main torsional stirring blades and the main shaft sleeve assembly and the horizontal direction is 45-60 degrees.
Preferably, the auxiliary paddle includes: the auxiliary shaft sleeve assembly is sleeved on the stirring shaft, and the auxiliary torsional stirring blades are uniformly arranged on the auxiliary shaft sleeve assembly in a surrounding manner, and the radial torsional angle is 15-45 degrees;
the auxiliary torsional stirring blades are radial, and the included angle between the connection starting end of the auxiliary torsional stirring blades and the auxiliary shaft sleeve assembly and the horizontal direction is 45-60 degrees.
Preferably, the main shaft sleeve assembly comprises two semicircular main shaft sleeves which are symmetrically arranged, and each main shaft sleeve is provided with a main torsional stirring blade.
Preferably, the auxiliary shaft sleeve assembly comprises two symmetrically arranged semicircular auxiliary shaft sleeves, and each auxiliary shaft sleeve is provided with an auxiliary torsional stirring blade.
Preferably, the number of the main torsion type stirring blades is 2-6; the number of the auxiliary torsion type stirring blades is 2-6.
Preferably, the stirring diameter D of the main stirring paddle satisfies the following condition: 0.3D ' < D < 0.5D ' where D ' is the diameter of the reactor.
Preferably, the distance L between the main stirring paddles satisfies L ' < L < 2L ', wherein L ' is the length of the long side of the main torsion type stirring blade.
Preferably, the main stirring paddle and the auxiliary stirring paddle are connected with the stirring shaft key.
Compared with the prior art, adopt above-mentioned scheme the beneficial effects of the utility model are that:
because the below of main stirring rake, the bottom of (mixing) shaft is provided with supplementary stirring rake, and the stirring diameter D' of supplementary stirring rake satisfies: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle, so that the auxiliary stirring paddle can disturb the flow state of the reaction materials around the stirring shaft during stirring, break through a vortex area below the stirring shaft, and increase the axial flow ratio of the reaction materials at the same time, so as to ensure that the reaction materials can play a better mixing effect in a shorter time, reduce energy consumption, and solve the problems that the tangential flow of the fluid is more and the axial flow ratio is reduced because a vortex area is formed below the existing stirrer during stirring.
Drawings
FIG. 1 is a schematic structural diagram of a stirrer for a reaction kettle according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
in the figure: 1. a stirring shaft; 2. a main stirring paddle; 3. an auxiliary stirring paddle; 21. a main shaft sleeve assembly; 22. a main torsion type stirring blade; 31. an auxiliary bushing assembly; 32. auxiliary torsional mode stirring vane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment provides an energy-saving stirrer, as shown in fig. 1 and fig. 2, comprising a stirring shaft 1, at least one main stirring paddle 2, and an auxiliary stirring paddle 3 for increasing axial movement of fluid;
an auxiliary stirring paddle 3 is arranged below the main stirring paddle 2 and at the bottom end of the stirring shaft 1;
the stirring diameter D' of the auxiliary stirring paddle 3 satisfies: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle 2.
The number of the main stirring paddles 2 is set according to the actual situation, for example, if the depth of the reaction kettle equipped with the stirring shaft 1 of the present embodiment is deep and there are many reaction materials in the reaction kettle, a plurality of (for example, 3) main stirring paddles 2 need to be arranged along the stirring shaft 1; if the depth of the reaction kettle provided with the stirring shaft 1 of the embodiment is shallow and the reaction materials in the reaction kettle are less, fewer main stirring paddles 2 need to be arranged along the stirring shaft 1, if 1 is arranged; no matter how many main stirring paddles 2 are arranged, all the main stirring paddles 2 are positioned in the reaction materials, if the height of the main stirring paddles 2 is higher than that of the reaction materials, waste is caused, the weight of the stirring shaft 1 is increased, and energy consumption is increased;
because the below of main stirring rake 2, the bottom of (mixing) shaft 1 is provided with supplementary stirring rake 3, and the stirring diameter D' of supplementary stirring rake 3 satisfies: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle 2, so that the auxiliary stirring paddle 3 can disturb the flow state of the reaction materials around the stirring shaft during stirring, break through a vortex area below the stirring shaft, and increase the proportion of the axial flow of the reaction materials at the same time, so as to ensure that the reaction materials can be mixed well within a short time, reduce energy consumption, and solve the problems that the tangential flow of the fluid is large and the proportion of the axial flow is reduced because a vortex area is formed below the existing stirrer during stirring.
In a specific embodiment, the distance H between the auxiliary paddle 3 and the main paddle 2 next to it satisfies: h is more than 0.3D and less than 0.6D; only when the distance H between the auxiliary stirring paddle 3 and the main stirring paddle 2 adjacent to the auxiliary stirring paddle meets the above condition, the auxiliary stirring paddle 3 can better disturb the flowing state of the reaction material in the vortex region formed below the main stirring paddle 2 during stirring, the range of the vortex region can be reduced, and even the vortex region can be avoided.
In a particular embodiment, the main stirring blade 2 comprises: the main shaft sleeve component 21 is sleeved on the stirring shaft 1, and the main torsion type stirring blades 22 are arranged on the main shaft sleeve component 21 in a surrounding mode and have a radial torsion angle of 15-45 degrees;
the main torsional stirring blades 22 are radial, and the included angle between the connection starting end of the main torsional stirring blades 22 and the main shaft sleeve assembly 21 and the horizontal direction is 45-60 degrees;
in a specific embodiment, the main stirring paddle 2 is connected with the stirring shaft 1 in a key manner, for example, in the embodiment, a key matched and connected with a key groove formed in the stirring shaft 1 is arranged on the inner side wall of the main shaft sleeve assembly 21, so that convenience in installation and disassembly is ensured;
during stirring, the main torsion type stirring blade 22 with the torsion angle of 15-45 degrees not only can reduce the proportion of circumferential flow by disturbing the flowing state of reaction materials, further increase the proportion of axial flow, improve the stirring efficiency, but also can effectively avoid generating a vortex region in the stirring process;
in addition, because the included angle between the connection starting end of the main torsional stirring blade 22 and the main shaft sleeve assembly 21 and the horizontal direction is 45 degrees in the embodiment, the circumferential flow of the reaction materials around the main stirring paddle 2 can be effectively prevented from being relatively large during stirring, the axial flow ratio is increased, meanwhile, the vortex region generated below the main stirring paddle 2 is also effectively prevented, and the energy consumption is reduced.
In addition, since the main twisted stirring vanes 22 have a twisted structure and a twist angle of 15 ° to 45 °, resistance applied during the stirring process can be reduced.
In a particular embodiment, the auxiliary paddles 3 comprise: the auxiliary shaft sleeve assembly 31 is sleeved on the stirring shaft 1, and the auxiliary torsional stirring blades 32 are arranged on the auxiliary shaft sleeve assembly 31 in a surrounding mode and have a radial torsional angle of 15-45 degrees;
the main twisted stirring vanes 22 in this embodiment may be obtained by twisting both ends of a rectangular stirring vane by 15 ° to 45 ° in opposite directions along the center, respectively;
the auxiliary torsional stirring blades 32 are radial, and the included angle between the connection starting end of the auxiliary torsional stirring blades 32 and the auxiliary shaft sleeve assembly 31 and the horizontal direction is 45-60 degrees;
in the specific embodiment, the auxiliary stirring paddle 3 is connected with the stirring shaft 1 in a key manner, for example, in the embodiment, the inner side wall of the auxiliary shaft sleeve assembly 31 is provided with a key which is matched and connected with a key groove formed on the stirring shaft 1, so that convenience in installation and disassembly is ensured;
during stirring, the auxiliary torsion type stirring blade 32 with the torsion angle of 15-45 degrees not only can reduce the proportion of circumferential flow by disturbing the flowing state of reaction materials, further increase the proportion of axial flow, improve the stirring efficiency, but also can effectively avoid generating a vortex region in the stirring process;
the auxiliary twisted stirring vane 32 in this embodiment may be obtained by twisting both ends of a rectangular stirring vane by 15 ° to 45 ° in opposite directions along the center;
because the included angle between the connection starting end of the auxiliary torsional stirring blade 32 and the auxiliary shaft sleeve assembly 31 and the horizontal direction is 45 degrees in this embodiment, the circumferential flow of the reaction materials around the auxiliary stirring paddle 3 can be effectively prevented from being relatively large during stirring, the axial flow ratio is increased, meanwhile, the vortex region below the auxiliary stirring paddle 3 is also effectively prevented from being generated, and the energy consumption is reduced.
In addition, since the auxiliary twisted stirring blade 32 has a twisted structure and the twist angle is 15 ° to 45 °, the resistance applied to the stirring process can be reduced.
In a specific embodiment, the main shaft sleeve assembly 21 comprises two symmetrically arranged semicircular main shaft sleeves, each of which is provided with a main torsional stirring blade 22, as shown in fig. 2, for the purpose of convenient disassembly and assembly;
in this embodiment, a key matching with a key groove formed in the stirring shaft 1 is arranged on the inner side wall of one of the spindle sleeves, and during specific installation, the key is inserted into the key groove, then the other spindle sleeve is butted with the spindle sleeve with the key, and finally the two spindle sleeves are fixed by using screws, so that the installation is completed.
In this embodiment, can set up a plurality of keyways on (mixing) shaft 1, because main stirring rake 2 and supplementary stirring rake 3 all are connected with the cooperation that (mixing) shaft 1 passes through key and keyway, so the quantity that sets up main stirring rake 2 on (mixing) shaft 1 can be less than the quantity of keyway, decides the number of main stirring rake 2 according to actual need.
In the specific embodiment, the auxiliary shaft sleeve assembly 31 includes two symmetrically arranged semicircular auxiliary shaft sleeves, each of which is provided with an auxiliary torsional stirring blade 32 for the purpose of convenient disassembly and assembly;
in the embodiment, a key matched with a key groove formed in the stirring shaft 1 is arranged on the inner side wall of one auxiliary shaft sleeve, when the auxiliary shaft sleeve is specifically installed, the key is inserted into the key groove, then the other auxiliary shaft sleeve is butted with a main shaft sleeve with the key, and finally the two auxiliary shaft sleeves are fixed through screws, so that the installation is completed.
In the specific embodiment, the number of the main torsion type stirring blades 22 is 2-6; the number of the auxiliary torsion type stirring blades 32 is 2-6;
in a specific embodiment, the stirring diameter D of the main stirring paddle 2 satisfies: 0.3D & lt 0.5D & gt, wherein D & lt is the diameter of the reaction kettle; the stirring diameter D of the main stirring paddle 2 changes along with the size of the reaction kettle, and when D satisfies: when D is more than 0.3D and less than 0.5D, the circumferential flow rate of the fluid can be obviously reduced when the stirring shaft 1 stirs, and the axial flow rate of the fluid is further increased.
In this example, the diameter D' of the reactor used was 900mm, and the stirring diameter D of the main stirring paddle was 420 mm.
In the specific embodiment, the distance L between the main stirring paddles 2 meets the requirements that L ' < L < 2L ', wherein L ' is the length of the long side of the main torsion type stirring blade 22, and on the premise of ensuring that the proportion of the circumferential flow of the fluid is reduced and the proportion of the axial flow of the fluid is increased, the number of the adopted stirring paddles is less, the cost is saved, and the energy consumption is reduced;
in the embodiment, the distance L between the main stirring paddles 2 satisfies that S is 2L', which not only can ensure that the circumferential flow rate ratio of the fluid is reduced to the maximum extent and the axial flow rate ratio of the fluid is increased, but also can reduce the number of the stirring paddles, reduce the energy output during stirring and reduce the energy consumption.
Working engineering:
firstly, two main shaft sleeves are butted and fixed by screws, so that a main stirring paddle 2 is arranged on a stirring shaft 1; meanwhile, the two auxiliary shaft sleeves are butted and fixed by screws, so that the auxiliary stirring paddle 3 is arranged on the stirring shaft 1; then, connect (mixing) shaft 1 with external power take off hub connection, for example pass through the shaft coupling hub connection with the output shaft of (mixing) shaft 1 and motor, start power take off, (mixing) shaft 1 is rotatory, and main stirring rake 2 and supplementary stirring rake 3 are rotatory simultaneously, because supplementary stirring rake 3 and the distance H of the main stirring rake 2 that is close to it, and the stirring diameter D' of supplementary stirring rake 3 satisfy: h is more than 0.3D and less than 0.6D, D' is more than 0.4D and less than 0.6D, wherein D is the stirring diameter of the main stirring paddle 2, so that the auxiliary stirring paddle 3 can disturb the flowing state of reaction materials around the stirring shaft 1 during stirring, and a vortex area below the stirring shaft is broken, so that the reaction materials can have a better mixing effect in a shorter time, and the energy consumption is reduced; in addition, because the included angle between one end of the main torsional stirring blade 22 directly connected with the middle main shaft sleeve assembly 21 and the horizontal direction is 45 degrees; the one end of supplementary torsional mode stirring vane 32 of supplementary axle sleeve subassembly 31 lug connection is 45 with the contained angle of horizontal direction, again can further effectually avoid when the stirring the circumferential flow of the reaction material around the main stirring rake 2 to account for than great, increase axial flow and account for than, simultaneously also effectually avoid producing the vortex district in the below of main stirring rake 2, reduce the energy consumption, solved current agitator when the stirring, because the vortex district that forms below, need the longer time stirring just can be with the material misce bene, thereby cause the problem that the energy consumption is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A stirrer for a reaction kettle is characterized by comprising a stirring shaft (1), at least one main stirring paddle (2) and an auxiliary stirring paddle (3) for increasing the axial movement of fluid;
the auxiliary stirring paddle (3) is arranged at the bottom end of the stirring shaft (1) below the main stirring paddle (2);
the stirring diameter D' of the auxiliary stirring paddle (3) meets the following requirements: 0.4D < D' < 0.6D, wherein D is the stirring diameter of the main stirring paddle (2).
2. The reactor stirrer according to claim 1, wherein the distance H between the auxiliary paddle (3) and the main paddle (2) immediately adjacent thereto satisfies: h is more than 0.3D and less than 0.6D.
3. The reactor stirrer according to claim 1, wherein the main stirring blade (2) comprises: the main shaft sleeve component (21) is sleeved on the stirring shaft (1), and the main torsion type stirring blades (22) are arranged on the main shaft sleeve component (21) in a surrounding mode, and the radial torsion angle of the main torsion type stirring blades is 15-45 degrees;
the main torsional stirring blades (22) are radial, and the included angle between the connection starting end of the main torsional stirring blades (22) and the main shaft sleeve assembly (21) and the horizontal direction is 45-60 degrees.
4. A stirrer for a reaction tank according to claim 3, wherein the auxiliary stirring paddle (3) comprises: the auxiliary shaft sleeve component (31) is sleeved on the stirring shaft (1), and the auxiliary torsional stirring blades (32) are arranged on the auxiliary shaft sleeve component (31) in a surrounding mode, and the radial torsional angle is 15-45 degrees;
the auxiliary torsional stirring blades (32) are radial, and the included angle between the connection starting end of the auxiliary torsional stirring blades (32) and the auxiliary shaft sleeve assembly (31) and the horizontal direction is 45-60 degrees.
5. A stirrer for a reaction kettle according to claim 3, wherein the main shaft sleeve assembly (21) comprises two symmetrically arranged semicircular main shaft sleeves, and each main shaft sleeve is provided with a main torsion type stirring blade (22).
6. The agitator for reaction kettle according to claim 4, wherein the auxiliary shaft sleeve assembly (31) comprises two symmetrically arranged semi-circular auxiliary shaft sleeves, each of which is provided with an auxiliary torsional stirring blade (32).
7. The stirrer for the reaction kettle according to claim 4, wherein the number of the main torsion type stirring blades (22) is 2 to 6; the number of the auxiliary torsion type stirring blades (32) is 2-6.
8. The reactor stirrer according to claim 1, wherein the stirring diameter D of the main stirring blade (2) satisfies: 0.3D "< D < 0.5D", wherein D "is the diameter of the reaction vessel.
9. The stirrer for the reaction kettle according to claim 3, wherein the distance L between the main stirring paddles (2) is L ' < L < 2L ', wherein L ' is the length of the long side of the main twisted stirring blade (22).
10. The stirrer for the reaction kettle according to claim 1, wherein the main stirring paddle (2) and the auxiliary stirring paddle (3) are both connected with the stirring shaft (1) in a key manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172647.7U CN211159708U (en) | 2019-07-24 | 2019-07-24 | Stirrer for reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172647.7U CN211159708U (en) | 2019-07-24 | 2019-07-24 | Stirrer for reaction kettle |
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| Publication Number | Publication Date |
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| CN211159708U true CN211159708U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921172647.7U Active CN211159708U (en) | 2019-07-24 | 2019-07-24 | Stirrer for reaction kettle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194518A (en) * | 2020-10-28 | 2021-01-08 | 沈阳东源环境科技有限公司 | Rotary high-temperature aerobic fermentation device |
| CN115318150A (en) * | 2022-08-08 | 2022-11-11 | 抚州国泰复合材料有限公司 | Combined stirring device |
-
2019
- 2019-07-24 CN CN201921172647.7U patent/CN211159708U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194518A (en) * | 2020-10-28 | 2021-01-08 | 沈阳东源环境科技有限公司 | Rotary high-temperature aerobic fermentation device |
| CN115318150A (en) * | 2022-08-08 | 2022-11-11 | 抚州国泰复合材料有限公司 | Combined stirring device |
| CN115318150B (en) * | 2022-08-08 | 2023-07-25 | 抚州国泰复合材料有限公司 | Combined stirring device |
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