CN115945112B - Batch slurry homogenizing stirring device based on magnetic stirring - Google Patents
Batch slurry homogenizing stirring device based on magnetic stirringInfo
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- CN115945112B CN115945112B CN202310098822.7A CN202310098822A CN115945112B CN 115945112 B CN115945112 B CN 115945112B CN 202310098822 A CN202310098822 A CN 202310098822A CN 115945112 B CN115945112 B CN 115945112B
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- heat exchange
- stirring
- exchange medium
- magnetic
- reaction vessel
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Abstract
The invention discloses a batch slurry homogenizing and stirring device based on magnetic stirring, which comprises a reaction container support, a driving disk and a temperature control device, wherein the temperature control device comprises a square container and a heat exchange medium circulation device for providing a heat exchange medium, the reaction container support is a supporting plate which is arranged in the square container and is provided with annular array clamping holes, each clamping hole is provided with a reaction container, a magnetic rotor is placed in each reaction container, the driving disk is arranged at the outer bottom of the square container and is provided with a driving magnet which corresponds to the annular array of the clamping holes, the heat exchange medium circulation device is started firstly, then sample materials are added into the reaction container, and the driving disk is started to drive the driving magnet to rotate, so that each magnetic rotor is driven to independently rotate to realize batch stirring. The invention realizes independent homogenizing and stirring of the reaction materials and can realize batch chemical reaction or homogenizing and stirring.
Description
Technical Field
The invention belongs to the field of stirring reaction, and particularly relates to a batch slurry homogenizing stirring device based on magnetic stirring. The reaction system can simultaneously stir a plurality of reaction vessels in batches, can realize batch stirring and mixing, and can further study the influence of variable components on the reaction under the condition of uniform stirring and temperature control.
Background
At present, when a clinical laboratory doctor in a hospital performs an examination test of medicines, blood or body fluids and the like, the clinical laboratory doctor mainly performs the examination test in a test tube, and for certain examinations, proper stirring is required to ensure the accuracy of an examination result, and in addition, in some gene detection fields, the stirring operation is required because pretreatment is required to be performed on a detection object. In the prior art, a test tube oscillator can oscillate a test tube and has a certain stirring effect, but the test tube oscillator has a complex structure and high manufacturing cost, has the main functions of oscillation and does not have a good stirring function, has poor use effect for the test requiring stirring pretreatment, and also has the defects that when mass analysis and test are faced, stirring pretreatment is required for each detection object, and therefore, a stirring device is required to be independently provided for each detection object, so that the equipment is complex, the operation difficulty is high, and the working efficiency is low.
In addition, for some chemical reactions, batch independent reactions are required under stirring environment to study the influence of the change of reaction raw materials on the reaction efficiency or the product quality, and batch reaction vessels capable of being independently stirred are also required.
Disclosure of Invention
The invention aims to provide a batch homogenizing and stirring device based on magnetic stirring, which can stir the reaction of a batch reaction container in a non-contact manner and is suitable for batch reaction experiments of homogenizing and stirring in the biological field or researching the influence of reaction components. The device drives the magnetic rotor in a plurality of fixed reaction temperature control containers (such as small test tubes) to rotate through the movable rotary driving magnet, and the independent batch stirring and slurry homogenizing effect is realized.
In order to solve the technical problem of the rotary photocatalytic reactor at the present stage, the invention adopts the following technical scheme:
The reaction vessel bracket is provided with a plurality of clamping holes which are used for placing reaction vessels and distributed in a ring shape, and a magnetic rotor used for stirring is placed in each reaction vessel;
The driving disc is arranged below the reaction container bracket and is concentric with the annular center of the clamping hole, and at least two driving magnets distributed in an annular shape are arranged on the driving disc;
the temperature control device is used for controlling the temperature of the reaction container through a heat exchange medium;
the driving disk is driven by the power device to rotate around the axis of the driving disk, and a plurality of driving magnets on the driving disk sweep the bottom of each reaction container in turn in the rotating process, so as to provide a rotating power magnetic field for the magnetic rotor in the reaction container.
The clamping holes are uniformly distributed in a ring shape, the driving magnets are also uniformly distributed in a ring shape, and the number and the positions of the driving magnets can be in one-to-one correspondence with the clamping holes.
Further, the north and south poles of the magnetic rotor are horizontally distributed, the driving magnets are cylindrical magnets distributed in the north and south directions, the magnetic poles of two adjacent cylindrical magnets are opposite, and when two adjacent driving magnets sweep from the bottom of the magnetic rotor, the magnetic rotor is driven to rotate.
Further, the temperature control device comprises a temperature control container which wraps the reaction container support and the reaction container thereon and a heat exchange medium circulation device for providing a heat exchange medium, wherein an outlet of the heat exchange medium circulation device is connected to a medium inlet of the temperature control container through a pipeline, a medium outlet of the temperature control container is connected with a return port of the heat exchange medium circulation device, and the heat exchange medium circulation device is used for providing a circulation heat exchange medium for the reaction container so as to control the temperature of the reaction container to be constant.
Further, the heat exchange medium is water, the heat exchange medium circulating device comprises a water tank, a temperature adjusting device and a water pump, an inlet of the water pump is connected with an outlet of the water tank, an outlet of the water pump is an outlet of the heat exchange medium circulating device, a reflow opening of the medium circulating device is an inlet of the temperature adjusting device, an outlet of the temperature adjusting device is connected to an inlet of the water tank, and the temperature adjusting device is used for adjusting the temperature of the heat exchange medium reflowed from the temperature control container.
Further, the reaction vessel support is a support plate arranged in the temperature control vessel, and annular array clamping holes are formed in the support plate, wherein the number of the clamping holes is 2-40.
Further, the temperature control container is a square container, and part or all of the square container is made of transparent materials.
Further, the reaction vessel is a cylindrical vessel such as a test tube, a glass tube, or the like.
Further, the maximum distance between the outermost effective magnetic induction lines of two adjacent driving magnets is not greater than the length of the magnetic rotor, so that the driving magnets effectively drive the magnetic rotor 6 to rotate.
The invention has the beneficial effects that:
According to the invention, the magnetic rotors in each reaction container are driven to rotate independently under the condition of no contact of the rotating driving magnet, so that the reaction materials to be treated in the reaction containers are subjected to homogenizing and stirring, and the temperature of all the reaction containers is controlled through the flowing heat exchange medium, so that the consistency of the temperature and stirring conditions of all the reaction containers can be ensured, and the method is particularly suitable for batch homogenizing and stirring and mixing and batch experiments for researching the influence of reaction components on the reaction.
Drawings
FIG. 1 is a front view of a batch homogenizing mixer in an embodiment of the invention;
FIG. 2 is a top view of a batch homogenizing mixer in an embodiment of the invention;
FIG. 3 is a cross-sectional view of a batch homogenizing mixer in an embodiment of the invention;
FIG. 4 is a three-dimensional schematic diagram of a batch homogenizing mixer in an embodiment of the invention;
fig. 5 is a schematic diagram of the principle of driving a magnetic rotor 6 to rotate by a driving magnet in rotation in a batch homogenizing mixer according to the embodiment of the present invention.
1-Reaction vessel support, 101-support plate, 102-clamping hole, 3-driving disk, 301-driving magnet, 302-flange seat, 4-temperature control device, 41-square container, 43-heat exchange medium circulation device, 431-water tank, 432-temperature regulating device, 433-water pump, 434-water supply pipe, 435-return pipe, 5-test tube, 6-magnetic rotor and 7-motor.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The present invention will be illustrated by taking test tube 5 as a reaction vessel and square vessel 41 as a temperature control vessel.
Example 1 as shown in fig. 1 to 4, the present example provides a batch homogenizing and stirring device based on magnetic stirring, which comprises a reaction vessel bracket 1, a driving disk 3 and a temperature control device 4,
As shown in fig. 1 to 3, the temperature control device 4 includes a square container 41 and a heat exchange medium circulation device 43 for supplying a circulating heat exchange medium, an outlet of the heat exchange medium circulation device 43 is connected to a medium inlet of the square container 41 through a water supply pipe 434, and a medium outlet of the square container 41 is connected to a return port of the heat exchange medium circulation device 43 through a return pipe 435;
as shown in fig. 2 to 4, the reaction vessel support 1 is two support plates 101 fixed in a square vessel 41, the support plates 101 are provided with clamping holes 102 distributed in an annular array, and each clamping hole 102 can clamp and fix a test tube 5;
the heat exchange medium circulation device 43 is used for providing circulated heat exchange medium and performing heat exchange with the test tube 5 so as to control the temperature in the test tube 5 to be constant;
the driving disc 3 is arranged below the reaction vessel bracket 1 outside the square vessel 41 and is concentric with the annular center of the clamping hole 102, and at least two driving magnets 301 distributed in an annular shape are arranged on the driving disc 3;
The driving disc 3 is driven to rotate around the axis thereof by a power device (such as a motor 7), and a plurality of driving magnets 301 on the driving disc sweep the bottom of each test tube 5 in turn in the rotating process to provide a rotating power magnetic field for the magnetic rotor 6 in the test tube 5, so that the invention can drive the magnetic rotor 6 in each test tube 5 to rotate independently in batches by only one motor 7. Realize the non-contact batch stirring function, achieve and simplify the stirring structure in the batch device.
As shown in fig. 4 and 5, the magnetic rotor 6 is a column-shaped rotor with north-south poles horizontally distributed, the driving magnets 301 are column-shaped magnets with north-south poles vertically distributed, and the magnetic poles of two adjacent column-shaped magnets are opposite, when two adjacent driving magnets 301 sweep from the bottom of the magnetic rotor 6, the magnetic rotor 6 is driven to rotate. It should be noted that, of course, the distance between the cylindrical magnet and the bottom of the test tube 5 cannot be too far, it is necessary to ensure that the magnetic rotor 6 at the bottom of the test tube 5 is within the magnetic induction line covering reaction of the cylindrical magnet, and the distance between the two adjacent driving magnets 301 cannot be too far or too close, which generally satisfies that the outermost effective magnetic induction lines of the two adjacent driving magnets 301 are substantially tangential, and the maximum distance between the outermost effective magnetic induction lines of the two adjacent driving magnets 301 is generally not greater than the length of the magnetic rotor 6, so that the two adjacent driving magnets 301 can effectively drive the magnetic rotor 6 to rotate when sweeping from the bottom of the magnetic rotor 6.
Specifically, the mechanism of the rotating driving magnet 301 in all embodiments of the present invention is shown in fig. 5, in which the arrow indicates the rotation direction of the driving disc 3, fig. 5 a shows the posture of the magnetic rotor 6 in a test tube 5 directly above one driving magnet 301, the posture of the magnetic rotor 6 in the test tube 5 is left N and right S, the posture of the magnetic rotor 6 above the driving magnet 301 is N and the posture of the magnetic rotor 6 below the driving magnet is S, as the driving disc 3 rotates, when the driving magnet 301 sweeps the test tube 5, that is, the test tube 5 is located at the middle position of the driving magnet 301 and the next driving magnet 301, as shown in fig. 5B, the magnetic rotor 6 of the test tube 5 reaches a state almost perpendicular to the connection line of two adjacent driving magnets 301, that is, the magnetic rotor 6 in the test tube 5 rotates by about 90 degrees, and when the next driving magnet 301 rotates to the position of the test tube 5, as shown in fig. 5C, the next driving magnet 301 is just opposite to the previous magnetic pole, therefore, the initial state of the magnetic rotor 6 is just opposite to the previous magnetic pole, the magnetic rotor 6 rotates just 180 degrees, and the rotation of the magnetic rotor 6 is just like, and the rotation of the magnetic rotor is continuously driven by the rotation of the test tube 5 is continuously, and the stirring mechanism is realized, and the stirring mechanism is continuously rotates in a large degree, and the stirring mechanism is realized. The above driving principle can be seen that the rotation speed of the driving disc 3 determines the rotation speed of the driving magnet 301, and the rotation speed of the driving magnet 301 determines the stirring speed of the magnetic rotor 6, so that the stirring intensity can be adjusted by changing the rotation speed of the driving disc 3, and meanwhile, the invention can be obtained to create a batch stirring device with the same stirring speed, thereby providing a high-precision equipment foundation for a comparative experiment, and meanwhile, the number of the driving magnets 301 on the driving disc 3 is even, so that the opposite magnetic poles of any two adjacent driving magnets 301 can be satisfied, and the optimal stirring effect can be achieved.
In the embodiment of the present invention, the temperature control device 4 is not limited to the above-described structure, and any temperature control device 4 may be used as long as it can control the temperature of the test tube 5.
In the embodiment of the present invention, the square container 41 is not limited to a square container, and may be any container that can hold a heat exchange medium and ensure that a reaction portion of the test tube 5 is immersed in the heat exchange medium, and may be a non-transparent material or a transparent material, so as to facilitate observation of a reaction condition in the test tube 5, and may be a transparent window on a certain surface when the container is made of the non-transparent material, so as to facilitate observation of the test tube 5.
It should be noted that, in the embodiment of the present invention, the specific shape of the reaction vessel support 1 is not limited, and may be a plate type, a ring type, or the like, and only needs to satisfy that the clamping holes 102 distributed in an annular array are provided thereon, for example, the present invention adopts two support plates 101 provided in the up-down direction as the reaction vessel support 1, the support plates 101 are installed in the square vessel 41 by means of fastening or fixing by a connecting piece, the clamping holes 102 in an annular array are provided at corresponding positions of the two support plates 101, and the fixing firmness to the test tube 5 is improved by the clamping holes 102 of the upper and lower support plates 101.
It should be noted that, in the embodiment of the present invention, the number of the clamping holes 102 is not limited, and is selected according to the size of the test tubes 5 and the number of the test tubes 5 to be batched, generally, 2 to 40 clamping holes 102 may be disposed in an annular array, and specifically, 6 to 20 clamping holes may be further optimized.
In the embodiment of the present invention, the more the number of the driving magnets 301 is, the better the stirring effect is, and when the number of the driving magnets 301 is the same as the number of the holding holes 102 (test tubes 5), the stirring effect reaches the optimal state.
It should be noted that, in the embodiment of the present invention, in order to ensure the effect, the annular array of the driving magnets 301 and the annular array of the holding holes 102 are coaxial, and the radii are the same, that is, the driving magnets 301 sweep from the right under the test tube 5 during the rotation.
In the embodiment of the present invention, the specific shape of the driving disc 3 is not limited, the size of the driving disc is selected according to the number of the driving magnets 301, and the driving disc 3 may be a solid or hollow disc, and the power device may be a motor 7, and the driving disc 3 is mounted on an output shaft of the motor 7 through a flange seat 302.
It should be noted that, in the embodiment of the present invention, the type of the heat exchange medium is not limited, and may be water, the heat exchange medium circulation device 43 includes a water tank 431, a temperature adjusting device 432, and a water pump 433, where an inlet of the water pump 433 is connected to an outlet of the water tank 431, an outlet of the water pump 433 is an outlet of the heat exchange medium circulation device 43, and is connected to a medium inlet of the square container 41 through a water supply pipe 434, a return port of the heat exchange medium circulation device 43 is an inlet of the temperature adjusting device 432, and an outlet of the temperature adjusting device 432 is connected to an inlet of the water tank 431, where the temperature adjusting device 432 is selected according to a reaction type, if an in-tube exothermic reaction is performed, the in-tube reaction is set as a heat dissipation fin, if an in-tube endothermic reaction is performed, the in-tube exothermic reaction is set as a heating device, if both exothermic and endothermic processes are performed, the temperature adjusting device 432 may be set as a heat dissipation fin and a heating device in parallel, and by adjusting a valve opening of two paths of return medium in parallel, so as to ensure that the temperature in the water tank is in a constant state, the temperature is particularly achieved by adopting the prior art.
It should be noted that, in the embodiment of the present invention, in order to improve the degree of automation, a controller may be provided for controlling the power device and the temperature control device 4, for example, controlling the rotation speed of the power device and the temperature setting of the temperature control device 4.
In the embodiment of the present invention, the reaction vessel may be a cylindrical vessel such as a test tube 5 or a beaker, and is not limited to the test tube 5.
Example 2 taking exothermic reaction as an example, the present example provides a batch slurry homogenizing stirring reaction method based on magnetic stirring, comprising the following steps:
Firstly, the heat exchange medium circulation device 43 is opened, after the cooling water finishes the first circulation, the reaction materials (or materials needing to be homogenized) and the magnetic rotor 6 are added into the test tube 5 according to the requirements, and the test tube 5 containing the reaction materials and the magnetic rotor 6 is slowly placed into the clamping hole 102 of the reaction vessel bracket 1. Then, the power device is started to drive the driving disc 3 to rotate, the driving disc 3 drives the driving magnet 301 to rotate, and the driving magnet is sequentially swept from the bottom of each test tube 5, so that the magnetic rotor 6 in each test tube 5 is driven to rotate, the batch stirring function of a plurality of test tubes 5 is realized, the rotating speed of the driving disc 3 is set through the controller, and the rotating speed of the magnetic rotor 6 can be adjusted, so that the stirring intensity is adjusted. The heat generated by the reaction in the test tube is taken away by the heat exchange medium circulation device 43, the reaction temperature in the test tube is kept constant until the reaction process is completed, and the power device and the heat exchange medium circulation device 43 are sequentially turned off after the experiment is completed. The switch and parameter control corresponding to the technical process can be controlled by the controller, and the industrial personal computer can be controlled by a hardware switch or a software switch on a touch screen, so that the specific implementation mode has no influence on the technical problem solving of the invention.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention are all equivalent substitutions and are included in the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310098822.7A CN115945112B (en) | 2023-01-29 | 2023-01-29 | Batch slurry homogenizing stirring device based on magnetic stirring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310098822.7A CN115945112B (en) | 2023-01-29 | 2023-01-29 | Batch slurry homogenizing stirring device based on magnetic stirring |
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| Publication Number | Publication Date |
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| CN115945112A CN115945112A (en) | 2023-04-11 |
| CN115945112B true CN115945112B (en) | 2025-10-31 |
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| CN202310098822.7A Active CN115945112B (en) | 2023-01-29 | 2023-01-29 | Batch slurry homogenizing stirring device based on magnetic stirring |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11137987A (en) * | 1997-11-10 | 1999-05-25 | Tokyo Rika Kikai Kk | mixer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07204485A (en) * | 1994-01-27 | 1995-08-08 | Hitachi Ltd | Stirrer |
| JP4247573B2 (en) * | 2003-09-04 | 2009-04-02 | 日本パルスモーター株式会社 | Stirrer |
| CN101947426B (en) * | 2010-09-27 | 2013-07-10 | 南京胥江机电厂 | Multiple-test tube stirring-rotating type method and device for photochemical reaction |
| DE102014004705B3 (en) * | 2014-03-31 | 2015-09-10 | Sciknowtec Gmbh | magnetic |
| JP6901084B2 (en) * | 2017-05-12 | 2021-07-14 | マックエンジニアリング株式会社 | Desktop continuous stirring tank type reactor |
| CN114981663A (en) * | 2020-02-07 | 2022-08-30 | 积水医疗株式会社 | Automatic analyzer |
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- 2023-01-29 CN CN202310098822.7A patent/CN115945112B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11137987A (en) * | 1997-11-10 | 1999-05-25 | Tokyo Rika Kikai Kk | mixer |
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| CN115945112A (en) | 2023-04-11 |
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