CN215463641U - Baffle for improving stirring shear rate - Google Patents
Baffle for improving stirring shear rate Download PDFInfo
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- CN215463641U CN215463641U CN202121709040.5U CN202121709040U CN215463641U CN 215463641 U CN215463641 U CN 215463641U CN 202121709040 U CN202121709040 U CN 202121709040U CN 215463641 U CN215463641 U CN 215463641U
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- stirring
- impeller
- shear rate
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Abstract
The application discloses a baffle for improving stirring shear rate, which comprises a baffle body arranged in a stirring tank body with a stirring shaft and an impeller; the stirring shaft drives the baffle body or the impeller to rotate, and correspondingly, the impeller or the baffle body is fixed in the stirring tank body; the position of the baffle body corresponding to the impeller is provided with a yielding groove. The material is sheared through the relative rotation between the baffle body and the impeller; under the action of the abdicating groove, the baffle body is attached to the impeller in the radial direction as much as possible, so that the joint surface of a stirring moving area and a stirring static area is increased, the stirring shear rate is improved, and the capability of changing the flow pattern under the working condition of high-viscosity laminar flow is further obtained; under the same stirring condition, the baffle body with the arrangement mode can ensure that the particle size of the material is smaller and more uniform, and is particularly suitable for stirring devices which need emulsification, dispersion and polymerization.
Description
Technical Field
The application relates to the technical field of stirring baffles for kettles, in particular to a baffle for improving the stirring shear rate.
Background
As shown in fig. 1, the conventional baffle 100 is generally an elongated, vertically fixed plate on the tank wall 200, and is added to eliminate the convolution in the center of the tank mainly in a turbulent flow state. It is apparent that such a baffle 100 is suitable for operation of the radial flow type impeller 300 in turbulent flow regions, and the baffle 100 cannot be used to change the flow pattern in a high viscosity laminar flow regime.
Therefore, it is an urgent need to solve the above-mentioned problems by those skilled in the art to improve the existing baffle.
SUMMERY OF THE UTILITY MODEL
An aim at of this application provides a simple structure, and the overall arrangement is ingenious, and the stirring shear rate is high, and the baffle that the flow pattern ability is strong when high viscous flow operating mode.
In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a baffle for improving the stirring shear rate comprises a baffle body arranged in a stirring tank body with a stirring shaft and an impeller; the stirring shaft drives the baffle body or the impeller to rotate, and correspondingly, the impeller or the baffle body is fixed in the stirring tank body; and a yielding groove is formed in the position, corresponding to the impeller, of the baffle body.
Preferably, the upper end of the stirring shaft is connected with a motor arranged above the stirring tank body, and the lower end of the stirring shaft is fixed on the baffle body; the impeller comprises an inner bottom fixed on the stirring tank body. The advantages are that: the motor drives the stirring shaft to rotate, so that the baffle body can be driven to rotate, and the baffle body and the impellers can rotate relative to each other.
Preferably, gaps are formed between the baffle body and the inner side wall of the stirring tank body, between the baffle body and the inner bottom of the stirring tank body and between the baffle body and the impeller. The advantages are that: under the effect of clearance, the stirring is moved the material in district and quiet district and can be formed the circulation to be favorable to further improving the shear rate of stirring.
Preferably, the upper end of the stirring shaft is connected with a motor arranged above the stirring tank body, and the lower end of the stirring shaft is fixed on the impeller; the baffle body is fixed on the inside wall of the stirring tank body. The advantages are that: the motor drives the stirring shaft to rotate, so that the impeller can be driven to rotate, and the baffle body and the impeller can rotate relatively.
Preferably, gaps are arranged between the baffle body and the inner bottom of the stirring tank body and between the baffle body and the impeller. The advantages are that: under the effect of clearance, the stirring is moved the material in district and quiet district and can be formed the circulation to be favorable to further improving the shear rate of stirring.
Preferably, the baffle body is detachably arranged on the inner side wall of the stirring tank body. The advantages are that: through the detachable mounting mode, both can be right according to actual demand the quantity of baffle body increases or reduces, again can be through tearing down the baffle body, so that it is alone right the baffle body is changed, and be favorable to realizing right the baffle body and the inner wall of agitator tank body washs.
Preferably, the baffle body is provided with a flow passing hole in a penetrating mode. The advantages are that: under the action of the overflowing holes, the shearing of the materials is increased, so that the shearing efficiency and the shearing effect of the materials can be further improved; under the same stirring condition, the particle size of the material can be smaller and more uniform in a shorter time.
Preferably, a plurality of baffle bodies are arranged in the stirring tank body at intervals along the circumferential direction of the stirring shaft. The advantages are that: through setting up a plurality of baffle body to obtain higher flow pattern ability under the operating mode of high viscous flow layer flow, and improve the further promotion to stirring shear rate simultaneously.
Preferably, a plurality of the baffle bodies are arranged at equal intervals along the circumferential direction of the stirring shaft. The advantages are that: the flow pattern obtained by each area in the stirring tank body is more uniform, and the particle size of the obtained material is more uniform; simultaneously, still be favorable to making the impeller when rotating or the resistance that the baffle body received when rotating is more even to can improve the shafting stability of (mixing) shaft.
Preferably, the number of the baffle bodies is 2-8. The advantages are that: when the number of the baffle bodies is one, the improvement on the stirring shear rate and the improvement on the flow pattern capability obtained under the working condition of high-viscosity laminar flow are relatively limited; when the number of the baffle bodies is more than eight, the baffle bodies are arranged more densely, and the stirring shear rate and the flow pattern capability obtained under the working condition of high-viscosity laminar flow are not improved greatly; therefore, when the number of the baffle bodies is 2-8, the stirring shear rate is improved, the flow pattern capability obtained under the working condition of high-viscosity laminar flow is improved obviously, and the cost performance is higher.
Compared with the prior art, the beneficial effect of this application lies in:
(1) through the (mixing) shaft drive baffle body perhaps the impeller takes place to rotate, can realize the baffle body with relative rotation between the impeller to can pass through the baffle body perhaps the impeller drives the motion takes place for the material of agitator tank internal portion, and then can realize the shearing to the material.
(2) Under the action of the abdicating groove, the size of the baffle body can be increased as much as possible, so that the baffle body can fill the area between the impeller and the inner side wall of the stirring tank body as much as possible along the radial direction of the stirring shaft, and the baffle body is attached to the impeller as much as possible in the radial direction; compared with the traditional baffle, the arrangement mode increases the joint surface of the stirring moving area and the static area, realizes the improvement of the stirring shear rate, and further obtains the capability of changing the flow pattern under the working condition of high-viscosity laminar flow; under the same stirring condition, the baffle body in the arrangement mode can enable the particle size of the material to be smaller and more uniform, and is particularly suitable for stirring devices needing emulsification, dispersion and polymerization.
Drawings
Fig. 1 is a schematic view illustrating the installation of a baffle in the prior art.
Fig. 2 is a schematic view of the fixed installation of a baffle body for a two-layer impeller provided by the present application.
Fig. 3 is a top view of fig. 2 as provided herein.
Fig. 4 is a schematic view of the fixed installation of the baffle body (with the overflowing hole) for the three-layer impeller provided by the application.
Fig. 5 is a top view of fig. 4 as provided herein.
Fig. 6 is a schematic view of the rotational mounting of the baffle body (with flow holes) for a three-layer impeller provided by the present application.
In fig. 1: 100. a baffle plate; 200. a tank wall; 300. an impeller.
In FIGS. 2-6: 1. a baffle body; 11. a yielding groove; 12. an overflowing hole; 2. a stirring tank body; 3. an impeller; 4. a stirring shaft.
Detailed Description
The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 2 to 6, an embodiment of the present application provides a baffle for improving a shear rate of stirring, including a baffle body 1 disposed inside a stirring tank 2 having a stirring shaft 4 and an impeller 3; the stirring shaft 4 drives the baffle body 1 or the impeller 3 to rotate, and correspondingly, the impeller 3 or the baffle body 1 is fixed in the stirring tank body 2; the baffle body 1 is provided with a yielding groove 11 at the position corresponding to the impeller 3. In addition, the following are correspondingly indicated: when the stirring shaft 4 is used for driving the baffle body 1 to rotate, the impeller 3 is fixed in the stirring tank body 2; when the stirring shaft 4 is used for driving the impeller 3 to rotate, the baffle body 1 is fixed inside the stirring tank body 2.
During operation, take place to rotate through (mixing) shaft 4 drive baffle body 1 or impeller 3 to realize the relative rotation between baffle body 1 and the impeller 3, thereby can drive the inside material emergence motion of agitator tank body 2 through baffle body 1 or impeller 3, and then can realize the shearing to the material. Meanwhile, under the action of the abdicating groove 11, the size of the baffle body 1 can be increased as much as possible, so that the baffle body 1 can fully fill the area between the impeller 3 and the inner side wall of the stirring tank body 2 along the radial direction of the stirring shaft 4, and the baffle body 1 is attached to the impeller 3 as much as possible in the radial direction, compared with the traditional baffle, the arrangement mode increases the joint surface of a stirring moving area and a stirring static area, improves the stirring shear rate, and further obtains the capability of changing the flow pattern under the working condition of high-viscosity laminar flow; moreover, under the same stirring condition, the baffle body 1 in the arrangement mode can make the particle size of the material smaller and more uniform, and is particularly suitable for stirring devices needing emulsification, dispersion and polymerization.
Referring to fig. 6, in some embodiments of the present application, the upper end of the stirring shaft 4 is connected to a motor (the motor is not shown in the drawings) disposed above the stirring tank 2, and the lower end of the stirring shaft 4 is fixed to the baffle body 1; the impeller 3 comprises an inner bottom part fixed on the stirring tank body 2. The stirring shaft 4 is driven by the motor to rotate, so that the baffle body 1 can be driven to rotate, and the baffle body 1 and the impeller 3 can rotate relatively. Further, gaps are arranged between the baffle body 1 and the inner side wall of the stirring tank body 2, the inner bottom of the stirring tank body 2 and the impeller 3; under the effect of clearance, the stirring is moved the material in district and quiet district and can be formed the circulation to be favorable to further improving the shear rate of stirring.
Referring to fig. 2 or 4, in some embodiments of the present application, the upper end of the stirring shaft 4 is connected to a motor (the motor is not shown in the drawings) disposed above the stirring tank 2, and the lower end of the stirring shaft 4 is fixed to the impeller 3; the baffle body 1 is fixed on the inner side wall of the stirring tank body 2. The stirring shaft 4 is driven by the motor to rotate, so that the impeller 3 can be driven to rotate, and the baffle body 1 and the impeller 3 can rotate relatively. Further, gaps are arranged between the baffle body 1 and the inner bottom of the stirring tank body 2 and between the baffle body and the impeller 3; under the effect of clearance, the stirring is moved the material in district and quiet district and can be formed the circulation to be favorable to further improving the shear rate of stirring. Further, the baffle body 1 is detachably arranged on the inner side wall of the stirring tank body 2. Through the detachable mounting means, both can increase or reduce baffle body 1's quantity according to actual demand, can be through dismantling baffle body 1 again to change baffle body 1 alone, and be favorable to realizing wasing the inner wall of baffle body 1 and agitator tank body 2. It should be noted that, in the present application, the detachable installation between the baffle body 1 and the agitator tank 2 is not limited, and for example, the baffle body 1 may be detachably installed on the inner side wall of the agitator tank 2 by a screw connection, a snap connection, or the like.
Referring to fig. 4 and 6, in some embodiments of the present application, the baffle body 1 is provided with an overflowing hole 12 therethrough. Under the action of the overflowing hole 12, the shearing of the materials is increased, so that the shearing efficiency and the shearing effect of the materials can be further improved; under the same stirring condition, the particle size of the material can be smaller and more uniform in a shorter time. In addition, as shown in fig. 6, the flow holes 12 also contribute to reducing the rotational resistance of the baffle body 1.
In some embodiments of the present application, the interior of the stirring tank body 2 is provided with a plurality of baffle bodies 1 at intervals along the circumferential direction of the stirring shaft 4. The advantages are that: through setting up a plurality of baffle bodies 1 to obtain higher flow pattern ability under the operating mode of high viscous flow layer flow, and improve the further promotion to stirring shear rate simultaneously.
It should be noted that, the size and shape of the baffle body 1 are not limited in the present application, and may change with the process requirements and the shape of the impeller 3, especially, the shape of the baffle body 1 needs to be attached to the impeller 3 as much as possible in the radial direction until the baffle body 1 extends from the tank wall of the stirring tank body 2 to the axial center direction to the circumferential region close to the stirring shaft 4, thereby obtaining the capability of changing the flow pattern under the working condition of high-viscosity laminar flow, and meanwhile, because the inward extending baffle body 1 increases the joint surface of the stirring moving region and the static region compared with the conventional baffle, the improvement of the stirring shear rate is realized, especially for some stirring devices requiring emulsification, dispersion and polymerization, under the same stirring condition, the arrangement of the baffle body 1 can make the particle size of the material smaller and more uniform.
In the present application, the number of baffle bodies 1 is not limited, and may be one or more (for example, the number of baffle bodies 1 in fig. 3 is four, and the number of baffle bodies 1 in fig. 5 is three). Can be through setting up a plurality of baffle bodies 1 along the circumferencial direction interval of (mixing) shaft 4 in the inside of agitator tank body 2 to obtain higher flow pattern ability under the operating mode of high viscous flow layer flow, and improve the further promotion to the stirring shear rate simultaneously. Furthermore, the baffle bodies 1 are arranged at equal intervals along the circumferential direction of the stirring shaft 4, so that the flow pattern obtained in each area inside the stirring tank body 2 is more uniform, and the particle size of the obtained material is more uniform; simultaneously, still be favorable to making impeller 3 when rotating or baffle body 1 when the resistance that receives more even when rotating to can be (mixing) shaft 4's shafting stability. However, when the number of the baffle bodies 1 is one, the improvement of the stirring shear rate and the improvement of the flow pattern capability obtained under the working condition of high-viscosity laminar flow are relatively limited; when the number of the baffle bodies 1 is more than eight, the baffle bodies 1 are arranged more densely, and the stirring shear rate and the flow pattern capability obtained under the working condition of high-viscosity laminar flow are not improved greatly; therefore, when the number of the baffle bodies 1 is 2-8, the stirring shear rate is improved, the flow pattern capability obtained under the working condition of high-viscosity laminar flow is improved obviously, and the cost performance is higher.
The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.
Claims (10)
1. A baffle for improving the stirring shear rate comprises a baffle body arranged in a stirring tank body with a stirring shaft and an impeller; the stirring shaft drives the baffle body or the impeller to rotate, and correspondingly, the impeller or the baffle body is fixed in the stirring tank body; and a yielding groove is formed in the position, corresponding to the impeller, of the baffle body.
2. The baffle plate for improving the stirring shear rate as claimed in claim 1, wherein the upper end of the stirring shaft is connected with a motor arranged above the stirring tank body, and the lower end of the stirring shaft is fixed on the baffle plate body; the impeller comprises an inner bottom fixed on the stirring tank body.
3. The shear rate enhancement baffle according to claim 2, wherein a gap is provided between the baffle body and the inner sidewall of the blender jar body, the inner bottom of the blender jar body and the impeller.
4. The baffle plate for improving stirring shear rate according to claim 1, wherein the upper end of the stirring shaft is connected with a motor arranged above the stirring tank body, and the lower end of the stirring shaft is fixed on the impeller; the baffle body is fixed on the inside wall of the stirring tank body.
5. The shear rate enhancement baffle according to claim 4, wherein a gap is provided between the baffle body and the inner bottom of the blender jar body and the impeller.
6. The shear rate enhancing baffle of claim 4, wherein the baffle body is removably disposed on the inner sidewall of the blender jar body.
7. The shear rate enhancement baffle according to any one of claims 1 to 6, wherein the baffle body is perforated with an overflow aperture.
8. The shear rate enhancing baffle according to any one of claims 1 to 6, wherein a plurality of the baffle bodies are arranged in the interior of the stirring tank body at intervals along the circumferential direction of the stirring shaft.
9. The shear rate enhancing baffle of claim 8, wherein a plurality of said baffle bodies are equally spaced along a circumferential direction of said agitator shaft.
10. The shear rate enhancing stirring baffle of claim 9, wherein the number of baffle bodies is 2 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121709040.5U CN215463641U (en) | 2021-07-26 | 2021-07-26 | Baffle for improving stirring shear rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121709040.5U CN215463641U (en) | 2021-07-26 | 2021-07-26 | Baffle for improving stirring shear rate |
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| Publication Number | Publication Date |
|---|---|
| CN215463641U true CN215463641U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121709040.5U Active CN215463641U (en) | 2021-07-26 | 2021-07-26 | Baffle for improving stirring shear rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537478A (en) * | 2022-10-20 | 2022-12-30 | 四川大学 | Detachable tanning rotary drum structure, control device and intelligent tanning method |
-
2021
- 2021-07-26 CN CN202121709040.5U patent/CN215463641U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537478A (en) * | 2022-10-20 | 2022-12-30 | 四川大学 | Detachable tanning rotary drum structure, control device and intelligent tanning method |
| CN115537478B (en) * | 2022-10-20 | 2024-03-22 | 四川大学 | Detachable tanning drum structure, control device and intelligent tanning method |
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