Convenient-to-clean high-speed centrifugal machine for perovskite purification

Abstract

The utility model discloses a high-speed centrifugal machine convenient to clean for perovskite purification, which belongs to the technical field of centrifugal machines and comprises a centrifugal machine body, a sealing cover is mounted at the top of the centrifugal machine body, and connecting structures are symmetrically arranged on two sides of the sealing cover and the centrifugal machine body. A sealing cover is arranged on the centrifugal machine body, a feeding device and a driving device are arranged at the top of the sealing cover, the feeding device is installed at the top of the sealing cover through bolts, the driving device drives the feeding device to conduct feeding, a stirring assembly is arranged in the centrifugal machine body, and a heating device is arranged on the inner wall of the centrifugal machine body. A refrigerating device is arranged at the bottom of the sealing cover, a control panel is arranged on one side of the centrifugal machine body, and the control panel is in telecommunication connection with the feeding device, the driving device, the stirring assembly, the heating device and the refrigerating device. The utility model discloses a high-speed centrifugal machine capable of realizing quantitative feeding of chemical products and reagents according to product purification requirements.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a high-speed centrifuge for perovskite purification that is easy to clean. Background Technology

[0002] The key to the application of quantum dot backlight display technology lies in the quantum dot luminescent material. Therefore, how to fabricate a quantum dot optical film from quantum dot material that meets the requirements of wide color gamut backlight applications is a crucial application step. In the quantum dot optical film preparation technology, high-quality quantum dot material is first obtained through high-temperature synthesis, cleaning, and purification. Then, surface treatment is performed to improve its compatibility with the polymer matrix to form a luminescent film. Finally, barrier films are laminated to both sides of the luminescent film to prevent the influence of water and oxygen from the external environment on the quantum dot material in the luminescent film.

[0003] The purification process requires the use of a high-speed centrifuge. The centrifugal force generated by the rotation of the high-speed centrifuge separates the components in the mixture according to their density or mass differences. Before centrifugation, a certain amount of chemicals and reagents need to be added to the centrifuge for centrifugation. In the current technology, the weighing of chemicals and reagents usually needs to be done manually by personnel before feeding them into the centrifuge. This is labor-intensive and the weighing process is prone to errors, which can affect the quality of the final purified product. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a high-speed centrifuge that can quantitatively feed chemical products and reagents according to product purification requirements.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a high-speed centrifuge for easy cleaning in the purification of perovskite, including a centrifuge body, a sealing cover installed on the top of the centrifuge body, and symmetrical connection structures arranged on both sides of the sealing cover and the centrifuge body. A feeding device and a driving device are respectively arranged on the top of the sealing cover. At least two sets of feeding devices are arranged. The feeding devices are installed on the top of the sealing cover by bolts. The driving device drives the feeding devices to feed materials. A stirring assembly is arranged inside the centrifuge body.

[0007] A heating device is provided on the inner wall of the centrifuge body, a cooling device is provided at the bottom of the sealing cover, and a control panel is provided on one side of the centrifuge body. The control panel is electrically connected to the feeding device, the driving device, the stirring assembly, the heating device, and the cooling device.

[0008] The preferred technical solution of this utility model is that the two sets of feeding devices are a liquid feeder and a solid feeder, respectively.

[0009] The preferred technical solution of this utility model is that the feeding device includes a feeding shell, the feeding shell is installed on the top of the sealing cover by bolts, the feeding shell is rotatably connected to a feeding chamber, the top of the feeding shell is provided with a feeding port, and the feeding chamber is provided with a plurality of weighing grooves evenly distributed along the outer wall, the weighing grooves being connected to the feeding port.

[0010] The preferred technical solution of this utility model is that the feeding shell is provided with a viewing window corresponding to the weighing tank, an electronic scale is installed at the bottom of the weighing tank of the solid feeder, and scale lines are provided on the viewing window of the liquid feeder.

[0011] The preferred technical solution of this utility model is that the top of the sealing cover is provided with a feeding port corresponding to two sets of feeding devices, and the feeding port is connected to the weighing trough.

[0012] The preferred technical solution of this utility model is that the connecting structure includes fixed seats disposed on both sides of the centrifuge body, the fixed seats are provided with installation ports, sliding grooves are symmetrically provided on both sides of the installation ports, clamping seats are slidably connected inside the sliding grooves, springs are connected between the clamping seats and the inner wall of the sliding grooves, and locking plates are provided on both sides of the sealing cover corresponding to the installation ports.

[0013] A preferred embodiment of this invention is that the stirring assembly includes a first motor disposed at the bottom of the centrifuge body, the driving end of the first motor is connected to a stirring shaft, and stirring blades are disposed on the stirring shaft.

[0014] The preferred technical solution of this utility model is that the driving device includes a support plate and two sets of fixed shafts. The two sets of fixed shafts pass through the feeding shell and are fixedly connected to the feeding chamber. The support plate is fixed on the top of the sealing cover. A second motor is provided on one side of the support plate. The driving end of the second motor passes through the support plate and is connected to one of the sets of fixed shafts. The two sets of fixed shafts are respectively provided with bevel gears that mesh with each other.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention enables quantitative feeding of solid and liquid reactants through a control panel and feeding device, replacing manual weighing and feeding, reducing labor burden and weighing errors, and improving the accuracy of product purification. At the same time, the control panel controls the stirring blades to stir at high speed, ensuring thorough mixing of the reactants. Under the action of centrifugal force, impurities and target products are separated into layers, achieving the purpose of product purification and improving purification efficiency and quality. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the high-speed centrifuge structure provided in a specific embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional view of the high-speed centrifuge structure provided in a specific embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure provided in a specific embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure provided in a specific embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the drive device structure provided in a specific embodiment of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Centrifuge body; 11. First motor; 12. Stirring shaft; 13. Stirring blade; 2. Sealing cover; 21. Feed inlet; 22. Refrigeration device; 3. Connecting structure; 31. Fixed base; 32. Sliding groove; 33. Clamping base; 34. Spring; 35. Clamping plate; 4. Feeding device; 41. Feeding shell; 42. Feeding port; 43. Feeding chamber; 44. Weighing trough; 45. Electronic scale; 5. Drive device; 51. Support plate; 52. Second motor; 53. Fixed shaft; 54. Bevel gear; 6. Control panel; 7. Heating device. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] A high-speed centrifuge for perovskite purification that is easy to clean includes a centrifuge body 1. A sealing cover 2 is installed on the top of the centrifuge body 1. The sealing cover 2 and the centrifuge body 1 are symmetrically connected by connecting structures 3. A feeding device 4 and a driving device 5 are respectively provided on the top of the sealing cover 2. The feeding device 4 is provided in at least two sets, which are liquid feeders and solid feeders, respectively. The feeding device 4 is installed on the top of the sealing cover 2 by bolts. The top of the sealing cover 2 has a feed inlet 21 corresponding to the two sets of feeding devices 4. The driving device 5 drives the feeding device 4 to feed the materials. A stirring assembly is provided inside the centrifuge body 1.

[0026] A heating device 7 is provided on the inner wall of the centrifuge body 1, and a cooling device 22 is provided at the bottom of the sealing cover 2. A control panel 6 is provided on one side of the centrifuge body 1. The control panel 6 is electrically connected to the feeding device 4, the driving device 5, the stirring assembly, the heating device 7, and the cooling device 22. The stirring assembly includes a first motor 11 provided at the bottom of the centrifuge body 1. The driving end of the first motor 11 is connected to a stirring shaft 12, and stirring blades 13 are provided on the stirring shaft 12.

[0027] Two sets of feeding devices 4 are bolted to the top of the sealing cover 2. Reactants are added to the feeding devices 4. The control panel 6 determines the required amount of material to be added. When both feeding devices 4 have added the required amount of raw materials, the control panel 6 controls the drive device 5 to operate. The drive device 5 drives the feeding devices 4 to feed the reactants, which are simultaneously fed into the centrifuge body 1 through the feed inlet 21. The control panel 6 controls the heating device 7 to start, which can be a heating plate. Simultaneously, it controls the first motor 11 to rotate, which, under the action of the stirring shaft 12, drives the stirring blades 13 to rotate, ensuring thorough mixing of the reactants. When the specified temperature is reached... After cooling, the control panel 6 stops the heating device 7. After adding a certain amount of precursor liquid, the control panel 6 starts the cooling device 22. The cooling device 22 includes a storage chamber located at the bottom of the sealing cover 2. A nozzle is installed at the bottom of the storage chamber. The storage chamber is connected to an external cooling box through a cooling pipe. After cooling, a certain amount of cyclohexane and ethanol are added through the feeding device 4 for cleaning. The precipitated product is then centrifuged to obtain the final purified product. This replaces manual weighing and feeding, improving the efficiency and accuracy of product purification. It solves the problem of low feeding accuracy in the perovskite purification process, reduces labor burden and weighing errors, and improves the quality of product purification.

[0028] As a possible implementation of this solution, preferably, the feeding device 4 includes a feeding shell 41, which is bolted to the top of the sealing cover 2. A feeding chamber 43 is rotatably connected inside the feeding shell 41. A feeding port 42 is opened at the top of the feeding shell 41. Several sets of weighing troughs 44 are evenly opened along the outer wall of the feeding chamber 43. The weighing troughs 44 are connected to the feeding port 42. The inlet 21 is connected to the weighing troughs 44.

[0029] The feeding shell 41 is provided with a viewing window for the weighing tank 44. An electronic scale 45 is installed at the bottom of the weighing tank 44 of the solid feeder. The viewing window of the liquid feeder is provided with scale lines.

[0030] By setting up the feeding device 4, under the control of the control panel 6, when liquid reactants are added to the weighing tank 44, the addition accuracy of liquid reactants can be ensured according to the scale lines. When solid reactants are added to the weighing tank 44, the addition accuracy of solid reactants can be ensured through the control panel 6 and the electronic scale 45, so as to ensure the accuracy of feeding operations, reduce the ratio error, and improve the quality of product purification.

[0031] As a possible implementation of this solution, preferably, the connection structure 3 includes a fixed seat 31 disposed on both sides of the centrifuge body 1. The fixed seat 31 has an installation port, and sliding grooves 32 are symmetrically disposed on both sides of the installation port. A clamping seat 33 is slidably connected inside the sliding groove 32. A spring 34 is connected between the clamping seat 33 and the inner wall of the sliding groove 32. A locking plate 35 is disposed on both sides of the sealing cover 2 corresponding to the installation port.

[0032] When the sealing cover 2 is installed, the locking plates 35 on both sides are slidably installed corresponding to the two sets of clamping seats 33. During the movement of the locking plates 35, the clamping seats 33 gradually squeeze the spring 34 and move towards the inner wall of the sliding groove 32 until the locking plates 35 move to the matching position with the fixed seat 31. Under the action of the spring 34 and the clamping seats 33, the locking plates 35 are locked from both sides to complete the installation of the sealing cover 2, which improves the convenience of installing and removing the sealing cover 2.

[0033] As a possible implementation of this solution, preferably, the driving device 5 includes a support plate 51 and two sets of fixed shafts 53. The two sets of fixed shafts 53 pass through the feeding housing 41 and are fixedly connected to the feeding chamber 43. The support plate 51 is fixed to the top of the sealing cover 2. A second motor 52 is provided on one side of the support plate 51. The driving end of the second motor 52 passes through the support plate 51 and is connected to one of the sets of fixed shafts 53. The two sets of fixed shafts 53 are respectively provided with bevel gears 54 that mesh with each other.

[0034] When the feeding device 4 completes the addition of reactants, the control panel 6 controls the second motor 52 to start. The second motor 52 drives the feeding chamber 43 to rotate through the fixed shaft 53 and two sets of meshing bevel gears 54, adding the weighed reactants into the centrifuge body 1 through the feed inlet 21 for reaction. This ensures the synchronous feeding of at least two reactants, improves work efficiency, and guarantees the accuracy of reactant addition.

[0035] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A high-speed centrifuge for perovskite purification that is easy to clean, characterized in that: The centrifuge body (1) is provided with a sealing cover (2) on the top of the centrifuge body (1). The sealing cover (2) and the centrifuge body (1) are symmetrically connected by a connection structure (3). The top of the sealing cover (2) is provided with a feeding device (4) and a driving device (5). The feeding device (4) is provided with at least two sets. The feeding device (4) is installed on the top of the sealing cover (2) by bolts. The driving device (5) drives the feeding device (4) to feed the material. The centrifuge body (1) is provided with a stirring assembly inside. A heating device (7) is provided on the inner wall of the centrifuge body (1), a cooling device (22) is provided at the bottom of the sealing cover (2), and a control panel (6) is provided on one side of the centrifuge body (1). The control panel (6) is electrically connected to the feeding device (4), the driving device (5), the stirring assembly, the heating device (7), and the cooling device (22).

2. The high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 1, is characterized in that: The two sets of feeding devices (4) are liquid feeders and solid feeders, respectively.

3. The high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 2, is characterized in that: The feeding device (4) includes a feeding shell (41), which is bolted to the top of the sealing cover (2). The feeding shell (41) is rotatably connected to a feeding chamber (43). A feeding port (42) is opened on the top of the feeding shell (41). Several sets of weighing troughs (44) are evenly opened along the outer wall of the feeding chamber (43). The weighing troughs (44) are connected to the feeding port (42).

4. The high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 3, is characterized in that: The feeding shell (41) is provided with a viewing window corresponding to the weighing tank (44). An electronic scale (45) is installed at the bottom of the weighing tank (44) of the solid feeder. The viewing window of the liquid feeder is provided with scale lines.

5. A high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 1, characterized in that: The top of the sealing cover (2) is provided with a feed inlet (21) corresponding to the two sets of feeding devices (4), and the feed inlet (21) is connected to the weighing trough (44).

6. A high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 1, characterized in that: The connection structure (3) includes fixed seats (31) on both sides of the centrifuge body (1). The fixed seats (31) have an installation port. Sliding grooves (32) are symmetrically provided on both sides of the installation port. A clamping seat (33) is slidably connected inside the sliding groove (32). A spring (34) is connected between the clamping seat (33) and the inner wall of the sliding groove (32). A locking plate (35) is provided on both sides of the sealing cover (2) corresponding to the installation port.

7. A high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 1, characterized in that: The stirring assembly includes a first motor (11) located at the bottom of the centrifuge body (1), the driving end of the first motor (11) is connected to a stirring shaft (12), and stirring blades (13) are provided on the stirring shaft (12).

8. A high-speed centrifuge for perovskite purification that is easy to clean, as described in claim 1, characterized in that: The drive device (5) includes a support plate (51) and two sets of fixed shafts (53). The two sets of fixed shafts (53) pass through the feeding shell (41) and are fixedly connected to the feeding chamber (43). The support plate (51) is fixed on the top of the sealing cover (2). A second motor (52) is provided on one side of the support plate (51). The drive end of the second motor (52) passes through the support plate (51) and is connected to one of the sets of fixed shafts (53). The two sets of fixed shafts (53) are respectively provided with bevel gears (54) that mesh with each other.

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