CN218077909U - Quantum dot synthesis equipment - Google Patents
Quantum dot synthesis equipment Download PDFInfo
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- CN218077909U CN218077909U CN202222283219.XU CN202222283219U CN218077909U CN 218077909 U CN218077909 U CN 218077909U CN 202222283219 U CN202222283219 U CN 202222283219U CN 218077909 U CN218077909 U CN 218077909U
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- reation kettle
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Abstract
The utility model discloses a quantum dot synthesis equipment, the motor of stirring subassembly is located reation kettle's kettle cover central authorities, the transmission shaft of motor runs through the kettle cover is connected with first stirring vane and second stirring vane in proper order, the injection jar of injection subassembly with temperature control component's temperature sensor is located the both sides of motor, the injection jar through the terminal circular injection nozzle of pipeline with inside intercommunication of reation kettle, evenly distributed has a plurality of orifices on the injection nozzle, temperature control component's heating ways is established outside reation kettle, be equipped with cooling coil in the reation kettle. The utility model adopts the above structure a quantum dot synthesizer, first stirring vane and second stirring vane extrude the ligand solution to opposite direction, and injection nozzle can spout coniform precursor solution fast, increases the area of contact of precursor solution and ligand solution, realizes quantum dot's quick nucleation.
Description
Technical Field
The utility model relates to a quantum dot synthesizer technical field especially relates to a quantum dot synthesizer.
Background
Quantum dots are nano-scale semiconductors that emit light at a specific frequency by applying a certain electric field or light pressure to the nano-semiconductor material. The quantum dots have wide application prospect in the fields of display, illumination, biomedicine and the like due to the excellent photoelectric property of the quantum dots. At present, the preparation method of the quantum dots generally adopts a high-temperature thermal injection synthesis method, has simple synthesis process and convenient operation, and has better repeatability and stability in laboratory preparation.
However, the high-temperature thermal injection synthesis method requires that a large amount of precursor solution is rapidly injected into the ligand solution at a high temperature to realize instantaneous mixing of the precursor solution and the ligand solution, and the laboratory-level instantaneous injection nucleation is difficult to realize due to large amount in industrial production. Therefore, on the industrial scale of quantum dot synthesis, the precursor solution is rapidly injected and mixed to form a key step for controlling the performance of the quantum dots.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a quantum dot synthesizer solves the precursor solution in the quantum dot industrial production process and pours into fast and mix the problem.
In order to realize the above object, the utility model provides a quantum dot synthesis equipment, injection subassembly, stirring subassembly and temperature control assembly including reation kettle, the motor of stirring subassembly is located reation kettle's kettle cover central authorities, the transmission shaft of motor runs through the kettle cover is connected with first stirring vane and second stirring vane in proper order, the injection jar of injection subassembly with temperature control assembly's temperature sensor is located the both sides of motor, the injection jar pass through the terminal circular injection nozzle of pipeline with the inside intercommunication of reation kettle, evenly distributed has a plurality of orifices on the injection nozzle, temperature control assembly's heating ways is established outside reation kettle, be equipped with cooling coil in the reation kettle.
Preferably, the tail end of the upper part of the pipeline is communicated with a first branch pipe and a second branch pipe respectively, the middle part of the first branch pipe and the middle part of the second branch pipe are obliquely arranged, the lower part of the first branch pipe and the lower part of the second branch pipe are horizontal to the transmission shaft, the tail end of the lower part of the first branch pipe and the tail end of the lower part of the second branch pipe are provided with the injection nozzles, and the tail end of the first branch pipe and the tail end of the second branch pipe use the transmission shaft as a circle center to be symmetrically arranged.
Preferably, the pipeline middle part slope sets up, pipeline upper portion with the pipeline lower part all with the transmission shaft is parallel, injection nozzle's quantity does the pipeline lower part is in two on the same axis from top to bottom.
Preferably, the number of the injection nozzles is one, the middle of the pipeline is obliquely arranged, and the upper part and the lower part of the pipeline are both parallel to the transmission shaft.
Preferably, the pipeline is in injection jar below is equipped with injection valve, the injection jar is equipped with high-pressure nitrogen gas inlet, reation kettle is equipped with low pressure nitrogen gas inlet, reation kettle's blast pipe is in be equipped with the air vent valve on the kettle cover.
Preferably, the injection nozzle is located above the first stirring blade, an included angle between the injection nozzle and the transmission shaft is 180 degrees, and the tail end of a probe of a temperature sensor connected with the kettle cover is located above the second stirring blade.
Preferably, the cooling coil is located between the first stirring blade and the second stirring blade, and a water inlet and a water outlet of the cooling coil are both located outside the reaction kettle and the heating jacket.
Preferably, the first stirring blade and the second stirring blade are any one of an anchor type, a four-blade type, and a six-blade type.
Therefore, the utility model adopts the above structure a quantum dot synthesizer, its beneficial effect is:
1. arranging a first stirring blade and a second stirring blade, and respectively extruding and pushing the ligand solution downwards or upwards to ensure that the ligand solution and the precursor solution can be fully mixed;
2. the injection tank can rapidly introduce the precursor solution into the pipeline by means of pressure difference, and the injection nozzle can inject and spray out the conical precursor solution, so that the contact area between the precursor solution and the ligand solution is increased, and the rapid nucleation of the quantum dots is realized.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a front sectional view of a quantum dot synthesizing apparatus of the present invention;
fig. 2 is a front view of one embodiment of an injection assembly of a quantum dot synthesis apparatus of the present invention;
fig. 3 is a front view of an embodiment of an injection assembly of a quantum dot synthesis apparatus of the present invention.
Reference numerals
1. A reaction kettle; 2. a motor; 3. a first stirring blade; 4. a second stirring blade; 5. an injection tank; 6. A pipeline; 7. an injection nozzle; 8. an exhaust valve; 9. a cooling coil; 10. a kettle cover; 11. a temperature sensor; 12. heating a jacket; 13. spraying a hole; 14. a first branch pipe; 15. a second branch pipe; 16. a drive shaft; 17. an injection valve; 18. a high pressure nitrogen inlet; 19. a low pressure nitrogen inlet.
Detailed Description
The technical solution of the present invention is further explained by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and the like in the description of the invention does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Fig. 1 is the utility model relates to a quantum dot synthesis equipment front section view, fig. 2 is the utility model discloses a quantum dot synthesis equipment injection module's an embodiment's elevation view, fig. 3 is the utility model discloses a quantum dot synthesis equipment injection module's an embodiment's elevation view, as shown, a quantum dot synthesis equipment, including reation kettle 1's injection module, stirring subassembly and temperature control component. The motor 2 of the stirring assembly is positioned in the center of the kettle cover 10 of the reaction kettle 1, the transmission shaft 16 of the motor 2 penetrates through the kettle cover 10 to be sequentially connected with the first stirring blade 3 and the second stirring blade 4, and the injection tank 5 of the injection assembly and the temperature sensor 11 of the temperature control assembly are positioned on two sides of the motor 2. The injection tank 5 is communicated with the interior of the reaction kettle 1 through a circular injection nozzle 7 at the tail end of a pipeline 6, and a plurality of spray holes 13 are uniformly distributed on the injection nozzle 7. The heating jacket 12 of the temperature control component is sleeved outside the reaction kettle 1, and the cooling coil 9 is arranged in the reaction kettle 1. The reaction kettle 1 is in a cylindrical or spherical structure, and the kettle cover 10 is detachable. The injection assembly is used for injecting and adding precursor solution into the reaction kettle 1, the stirring assembly is used for uniformly mixing the precursor solution with the ligand solution in the reaction kettle 1, and the temperature control assembly is used for monitoring and adjusting the reaction temperature in the reaction kettle 1. The spraying angle of the precursor solution sprayed by the injection nozzle 7 is in the range of 15-90 degrees, and the liquid outlet direction can be controlled by the position of the spraying hole 13 through the arrangement of the spraying hole 13, so that the precursor solution falls on the ligand solution in the reaction kettle 1 in a conical shape.
As shown in FIG. 2, the upper end of the pipeline 6 is respectively communicated with a first branch pipe 14 and a second branch pipe 15, the middle parts of the first branch pipe 14 and the second branch pipe 15 are obliquely arranged, and the lower parts of the first branch pipe 14 and the second branch pipe 15 are horizontal to a transmission shaft 16. The lower end of the first branch pipe 14 and the lower end of the second branch pipe 15 are both provided with injection nozzles 7, and the ends of the first branch pipe 14 and the second branch pipe 15 are symmetrically arranged by taking the transmission shaft 16 as a circle center. The precursor solution in the injection tank 5 respectively enters the first branch pipe 14 and the second branch pipe 15 through the upper part of the pipeline 6, and then sequentially passes through the injection nozzle 7 at the tail end of the first branch pipe 14 and the injection nozzle 7 at the tail end of the second branch pipe 15 to be mixed with the ligand solution in the reaction kettle 1. The arrangement of the two injection nozzles 7 increases the contact area between the precursor solution and the ligand solution, and further ensures that the precursor solution and the ligand solution can be uniformly mixed. If a plurality of branch pipes and a plurality of injection nozzles 7 are arranged, the branch pipes and the injection nozzles can be uniformly arranged along the circumference with the transmission shaft 16 as the center of a circle, so that the contact area between the precursor solution and the ligand solution is further increased, and the precursor solution and the ligand solution are more uniformly mixed.
As shown in fig. 3, the middle of the pipeline 6 is obliquely arranged, the upper part of the pipeline 6 and the lower part of the pipeline 6 are both parallel to the transmission shaft 16, and the number of the injection nozzles 7 is two, wherein the lower parts of the pipelines 6 are positioned on the same axis from top to bottom. The angle of the precursor solution sprayed by the upper injection nozzle 7 is larger than that of the precursor solution sprayed by the lower injection nozzle 7, the precursor solutions sprayed by the upper and lower injection nozzles 7 can form an upper conical surface and a lower conical surface, the contact area of the precursor solution and the ligand solution is increased, and the mixing time is shortened.
As shown in fig. 1, the number of the injection nozzles 7 is one, the middle portion of the duct 6 is obliquely arranged, and the upper portion of the duct 6 and the lower portion of the duct 6 are parallel to the drive shaft 16. The middle part of the pipeline 6 is obliquely arranged, so that the injection nozzle 7 is closer to the middle part of the reaction kettle 1, and the precursor solution and the ligand solution are fully mixed.
An injection valve 17 is arranged below the injection tank 5 of the pipeline 6, and the injection tank 5 is provided with a high-pressure nitrogen inlet 18. The reaction kettle 1 is provided with a low-pressure nitrogen inlet 19, and an exhaust valve 8 is arranged on the kettle cover 10 of an exhaust pipe of the reaction kettle 1. The injection valve 17 is arranged to control the injection amount of the precursor solution. The high pressure nitrogen can increase the internal pressure of the injection tank 5, so that the precursor solution can be sprayed out of the injection nozzle 7 in a conical shape instantly under the action of high pressure and uniformly fall on the liquid surface of the ligand solution to be mixed with the ligand solution.
The injection nozzle 7 is positioned above the first stirring blade 3, the included angle between the injection nozzle 7 and the transmission shaft 16 is 180 degrees, and the tail end of a probe of a temperature sensor 11 connected with the kettle cover 10 is positioned above the second stirring blade 4. The first stirring blade 3 is located above the second stirring blade 4, and the first stirring blade 3 can press the ligand solution downward while stirring. The second stirring blade 4 rotates in the same direction as the first stirring blade 3, and can press the ligand solution upward during stirring. The arrangement of the probe position of the temperature sensor 11 does not affect the work of the first stirring blade 3 and the second stirring blade 4, and simultaneously monitors the reaction temperature of the ligand solution and the precursor solution in a stirring state in real time.
The first stirring blade 3 and the second stirring blade 4 are any one of an anchor type, a four-leaf hinge type and a six-leaf hinge type, and the ligand solution is rapidly stirred. The ligand solution can move downwards and upwards under the action of the first stirring blade 3 and the second stirring blade 4, so that the precursor solution and the ligand solution are uniformly mixed.
When the device is used, ligand solution is put into the reaction kettle 1, low-pressure nitrogen is introduced, and the exhaust valve 8 is kept in an open state. Starting the motor 2, driving the first stirring blade 3 and the second stirring blade 4 to rotate by the transmission shaft 16, extruding and stirring the ligand solution downwards or upwards, and starting the heating sleeve 12 until the reaction kettle 1 reaches a preset reaction temperature. And (3) supplementing a precursor solution and high-pressure nitrogen into the injection tank 5, opening the injection valve 17, and then spraying the precursor solution out of the injection nozzle 7 in a conical shape, uniformly falling on the liquid surface of the ligand solution and mixing with the ligand solution. The first stirring blade 3 and the second stirring blade 4 are continuously stirred, so that the precursor solution and the ligand solution are rapidly mixed and react to generate the quantum dots.
Therefore, the quantum dot synthesis equipment adopting the above structure of the present invention is provided with the first stirring blade and the second stirring blade, and the ligand solution is pushed by downward or upward extrusion, so that the ligand solution and the precursor solution can be fully mixed; the injection tank can rapidly introduce the precursor solution into the pipeline by means of pressure difference, and the injection nozzle can inject and spray out the conical precursor solution, so that the contact area between the precursor solution and the ligand solution is increased, and the rapid nucleation of the quantum dots is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. A quantum dot synthesis device, characterized in that: injection subassembly, stirring subassembly and the temperature control subassembly including reation kettle, the motor of stirring subassembly is located reation kettle's kettle cover central authorities, the transmission shaft of motor runs through the kettle cover is connected with first stirring vane and second stirring vane in proper order, the injection jar of injection subassembly with the temperature sensor of temperature control subassembly is located the both sides of motor, the injection jar pass through the terminal circular injection nozzle of pipeline with inside intercommunication of reation kettle, evenly distributed has a plurality of orifices on the injection nozzle, temperature control subassembly's heating ways is established outside reation kettle, be equipped with cooling coil in the reation kettle.
2. A quantum dot synthesis device according to claim 1, wherein: the terminal first branch pipe and the second branch pipe intercommunication respectively of pipeline upper portion, first branch pipe middle part with the equal slope in second branch pipe middle part sets up, first branch pipe lower part with second branch pipe lower part all with the transmission shaft level, first branch pipe lower part terminal with second branch pipe lower part end all is equipped with the injection nozzle, first branch pipe end with the second branch pipe end uses the transmission shaft sets up as centre of a circle symmetry.
3. A quantum dot synthesis device according to claim 1, wherein: the pipeline middle part slope sets up, pipeline upper portion with the pipeline lower part all with the transmission shaft is parallel, injection nozzle's quantity does the pipeline lower part is two on the same axis from top to bottom.
4. A quantum dot synthesis device according to claim 1, wherein: the number of the injection nozzles is one, the middle of the pipeline is obliquely arranged, and the upper part and the lower part of the pipeline are parallel to the transmission shaft.
5. A quantum dot synthesis device according to claim 1, wherein: the pipeline is in injection jar below is equipped with injection valve, the injection jar is equipped with the high-pressure nitrogen gas air inlet, reation kettle is equipped with the low pressure nitrogen gas air inlet, reation kettle's blast pipe is in be equipped with the air vent valve on the kettle cover.
6. A quantum dot synthesis device according to claim 1, wherein: the injection nozzle is located first stirring vane top, the injection nozzle with contained angle between the transmission shaft is 180, the temperature sensor's that the kettle cover is connected probe end is located second stirring vane top.
7. A quantum dot synthesis device according to claim 1, wherein: and the cooling coil is positioned between the first stirring blade and the second stirring blade, and a water inlet and a water outlet of the cooling coil are both positioned in the reaction kettle and the outer side of the heating sleeve.
8. A quantum dot synthesis device according to claim 1, wherein: the first stirring blade and the second stirring blade are any one of an anchor type, a four-leaf hinge type and a six-leaf hinge type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283219.XU CN218077909U (en) | 2022-08-29 | 2022-08-29 | Quantum dot synthesis equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283219.XU CN218077909U (en) | 2022-08-29 | 2022-08-29 | Quantum dot synthesis equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218077909U true CN218077909U (en) | 2022-12-20 |
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ID=84449727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222283219.XU Active CN218077909U (en) | 2022-08-29 | 2022-08-29 | Quantum dot synthesis equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218077909U (en) |
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2022
- 2022-08-29 CN CN202222283219.XU patent/CN218077909U/en active Active
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