Discharging device for producing photoinitiator

Abstract

This utility model relates to the field of photoinitiator preparation technology, and in particular to a discharge device for photoinitiator production. It includes a screening device and a discharge device. The screening device comprises a sorting frame, a multi-stage sieve plate, and an eccentric vibrating motor. The bottom of the sorting frame has a coarse sieve discharge port, a fine sieve discharge port, and a precision sieve discharge port. The multi-stage sieve plate is fixedly installed inside the sorting frame. The eccentric vibrating motor is located on one side of the sorting frame. The discharge device includes a coarse sieve discharge hopper, a fine sieve discharge hopper, and a precision sieve discharge hopper respectively located at the coarse sieve discharge port, the fine sieve discharge port, and the precision sieve discharge port. The discharge device is fixedly installed at the bottom of the screening device. This utility model, by setting a multi-stage sieve plate in the screening device, in conjunction with the sieve at the bottom of the sorting frame, can screen three specifications of materials and agglomerates requiring crushing in a single feeding, offering the advantages of multi-stage screening and high production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photoinitiator preparation technology, and in particular to a discharge device for photoinitiator production. Background Technology

[0002] Photoinitiators, also known as photosensitizers or photocuring agents, are compounds that can absorb energy of a certain wavelength in the ultraviolet or visible light region, generate free radicals and cations, and thus initiate monomer polymerization, cross-linking and curing. They are mainly used in inks, coatings, 3D printing and other fields.

[0003] The solid particles obtained after photoinitiator crystallization often have an uneven particle size distribution, which may include large crystals, fine powders, and agglomerates. In order to ensure that the particle size, flowability, and absence of agglomerates of the final product meet the specifications, it is necessary to screen them. Existing feeding and screening devices can only screen out large crystals or agglomerates, and the particle size distribution of the screened material is uneven. If particles of different target specifications are required, multiple screenings must be performed carefully. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the feeding and screening device can only screen out large crystals or agglomerates and cannot perform multi-stage screening.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides a discharge device for photoinitiator production, including a screening device and a discharge device. The screening device includes a sorting frame, a multi-stage sieve plate, and an eccentric vibrating motor. The sorting frame is concave, with an agglomerate discharge port at one end and a coarse sieve discharge port, a fine sieve discharge port, and a high-precision sieve discharge port at the bottom. The multi-stage sieve plate is fixedly installed inside the sorting frame, including a coarse sieve plate and a fine sieve plate. Two symmetrical guide blocks are provided at the upper and lower ends of the coarse sieve plate and the fine sieve plate. The two guide blocks are respectively fixedly installed on both sides of the inner wall of the sorting frame. The eccentric vibrating motor is located on one side of the sorting frame. The discharge device includes a coarse sieve discharge hopper, a fine sieve discharge hopper, and a high-precision sieve discharge hopper. The discharge device is fixedly installed at the bottom of the screening device. The coarse sieve discharge hopper, the fine sieve discharge hopper, and the high-precision sieve discharge hopper are respectively fixedly installed at the coarse sieve discharge port, the fine sieve discharge port, and the high-precision sieve discharge port.

[0006] Preferably, the coarse screen plate and the fine screen plate are detachably installed within the sorting frame, and screens are detachably installed on the coarse screen plate, the fine screen plate, and the fine screen outlet. The mesh count of the screens on the coarse screen plate, the fine screen plate, and the fine screen outlet increases sequentially, and the detachable screens facilitate replacement and maintenance.

[0007] Preferably, one side of the guide block is attached to the edge of the screen, and the screen lengths of the coarse screen plate, fine screen plate, and fine screen outlet increase sequentially, with the screen at the fine screen outlet located above the fine screen outlet. The sequentially increasing screen length ensures maximum coverage in each screening process, guaranteeing that all material falling into the lower screening layers passes through the screens, preventing errors and waste in grading.

[0008] Preferably, one end of the coarse screen plate is located at the agglomerate outlet, and the fine screen plate has a fine screen discharge port located above the coarse screen outlet hopper. Larger agglomerates are screened out from the coarse screen plate, fall through the agglomerate outlet into the collection container below, and the coarse material screened by the coarse screen plate is screened out by the fine screen plate, enters the coarse screen outlet through the fine screen discharge port, and then falls into the collection container below.

[0009] Preferably, the coarse screen outlet, fine screen outlet, and high screen outlet are separated by two partitions, which are respectively attached to the fine screen plate and the bottom of the sorting frame. The two partitions separate the material into a hopper to prevent the materials of different grades from mixing.

[0010] Preferably, shock-absorbing platforms are fixedly installed on both sides of the sorting frame, and shock-absorbing springs are fixedly connected to the bottom of the shock-absorbing platforms. Support columns are fixedly connected to the bottom of the shock-absorbing springs. The installation of shock-absorbing springs gives the sorting frame elastic characteristics, enabling the sorting frame to vibrate under the action of the eccentric vibration motor and to have a reset function.

[0011] Preferably, the eccentric vibration motor includes an eccentric rotor, a rotating shaft, and a drive motor. The rotating shaft passes through the sorting frame, with the eccentric rotor fixedly connected to one end of the rotating shaft and a turntable connected to the other end via a flexible coupling. The output end of the drive motor is powered to the turntable via a belt. The eccentric vibration motor drives the rotating shaft to rotate via the belt, and the eccentric rotor fixed to one end of the rotating shaft causes the rotating shaft to vibrate. The rotating shaft is mounted on the sorting frame via bearings, so the sorting frame also rotates. The flexible coupling flexibly connects the turntable and the rotating shaft, preventing the vibration of the rotating shaft from affecting the power transmission of the drive motor.

[0012] Preferably, a cover plate is detachably installed on the top of the sorting frame, and a feeding port is opened on the cover plate, at which a feeding hopper is fixedly installed. The cover plate makes the screening space of the sorting frame relatively enclosed, reducing dust scattering, while the feeding hopper improves feeding efficiency.

[0013] The beneficial effects of this utility model are as follows: By setting up multi-stage screening plates in the screening device, and cooperating with the screen at the bottom of the sorting frame, this utility model can screen out three specifications of materials and agglomerates that need to be crushed in one feeding. By increasing the length of the screens of the coarse screen plate, fine screen plate and fine screen outlet in sequence, it is ensured that each screening can achieve maximum coverage and that the materials falling into the lower screening layer can pass through the screen, preventing errors and waste in grading. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional schematic diagram of the utility model. Figure 1 ;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the utility model. Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the utility model in a half-section state;

[0019] Figure 5 This is a schematic diagram of the utility model without a cover plate;

[0020] Figure 6 This is a three-dimensional schematic diagram of the present invention in the form of a coverless plate and a multi-stage sieve plate;

[0021] Figure 7 This is a three-dimensional schematic diagram of the multi-stage sieving plate of this utility model.

[0022] In the diagram: 1. Screening device; 2. Sorting frame; 3. Multi-stage screening plate; 4. Eccentric vibrating motor; 5. Discharge device; 6. Guide block; 7. Screen; 8. Partition plate; 9. Vibration damping table; 10. Vibration damping spring; 11. Support column; 12. Cover plate; 13. Feeding port; 14. Feeding hopper; 15. Fine screen discharge port; 201. Agglomerate discharge port; 202. Coarse screen discharge port; 203. Fine screen discharge port; 204. Precision screen discharge port; 301. Coarse screen plate; 302. Fine screen plate; 401. Eccentric rotor; 402. Rotating shaft; 403. Drive motor; 404. Flexible coupling; 405. Turntable; 501. Coarse screen discharge hopper; 502. Fine screen discharge hopper; 503. Precision screen discharge hopper. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Throughout this specification, reference to "in one particular embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrase "in one particular embodiment" or "in some embodiments" appears in various places throughout the specification, and not all references are to the same embodiment. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0025] like Figures 1 to 7 The illustrated discharge device for photoinitiator production includes a screening device 1 and a discharge device 5. The screening device 1 includes a sorting frame 2, a multi-stage sieve plate 3, and an eccentric vibrating motor 4. The sorting frame 2 is concave, with an agglomerate discharge port 201 at one end and a coarse sieve discharge port 202, a fine sieve discharge port 203, and a high-precision sieve discharge port 204 at the bottom. The multi-stage sieve plate 3 is fixedly installed inside the sorting frame 2 and includes a coarse sieve plate 301 and a fine sieve plate 302. Two symmetrical guide blocks 6 are provided at the upper and lower ends of the fine screen plate 302. The two guide blocks 6 are respectively fixedly installed on both sides of the inner wall of the sorting frame 2. The eccentric vibration motor 4 is located on one side of the sorting frame 2. The discharge device 5 includes a coarse screen discharge hopper 501, a fine screen discharge hopper 502, and a fine screen discharge hopper 503. The discharge device 5 is fixedly installed at the bottom of the screening device 1. The coarse screen discharge hopper 501, the fine screen discharge hopper 502, and the fine screen discharge hopper 503 are respectively fixedly installed at the coarse screen discharge port 202, the fine screen discharge port 203, and the fine screen discharge port 204.

[0026] In one specific implementation, such as Figure 4 As shown, the coarse screen plate 301 and the fine screen plate 302 are detachably installed in the sorting frame 2. Screens 7 are detachably installed on the coarse screen plate 301, the fine screen plate 302, and the fine screen outlet 204. The mesh count of the screens 7 on the coarse screen plate 301, the fine screen plate 302, and the fine screen outlet 204 increases sequentially. The detachable screens 7 facilitate replacement and maintenance.

[0027] In one specific implementation, such as Figure 2 , Figure 5 and Figure 7 As shown, one side of the guide block 6 is attached to the edge of the screen 7. The lengths of the screen 7 at the coarse screen plate 301, fine screen plate 302, and fine screen outlet 204 increase sequentially, with the screen 7 at the fine screen outlet 204 located above it. The sequentially increasing length of the screen 7 ensures maximum coverage in each screening process, guaranteeing that all materials falling into the lower screening layers pass through the screen 7, preventing errors and waste in grading.

[0028] In one specific implementation, such as Figure 4 and Figure 7 As shown, one end of the coarse screen plate 301 is located at the agglomerate outlet 201, and the fine screen plate 302 has a fine screen discharge port 15, which is located above the coarse screen outlet 501. Larger agglomerates are screened out from the coarse screen plate 301, fall through the agglomerate outlet 201 into the collection container below, and the coarse material screened by the coarse screen plate 301 is screened out by the fine screen plate 302, enters the coarse screen outlet 202 through the fine screen discharge port 15, and then falls into the collection container below.

[0029] In one specific implementation, such as Figure 4 As shown, the coarse screen outlet 202, the fine screen outlet 203, and the high-precision screen outlet 204 are separated by two partitions 8, which are respectively attached to the bottom of the fine screen plate 302 and the sorting frame 2. The two partitions 8 separate three discharge hoppers to prevent materials of different grades from mixing.

[0030] In one specific implementation, such as Figures 1 to 3 As shown, shock-absorbing platforms 9 are fixedly installed on both sides of the sorting frame 2, and shock-absorbing springs 10 are fixedly connected to the bottom of the shock-absorbing platforms 9. Support columns 11 are fixedly connected to the bottom of the shock-absorbing springs 10. The setting of the shock-absorbing springs 10 gives the sorting frame 2 elastic characteristics, enabling the sorting frame 2 to vibrate under the action of the eccentric vibration motor 4, and also has a reset function.

[0031] In one specific implementation, such as Figure 1 , Figure 2 and Figure 6 As shown, the eccentric vibration motor 4 includes an eccentric rotor 401, a rotating shaft 402, and a drive motor 403. The rotating shaft 402 passes through the sorting frame 2. One end of the rotating shaft 402 is fixedly connected to the eccentric rotor 401, and the other end of the rotating shaft 402 is connected to a turntable 405 via a flexible coupling 404. The output end of the drive motor 403 is powered by a belt connected to the turntable 405. The eccentric vibration motor 4 drives the rotating shaft 402 to rotate via the belt. The eccentric rotor 401 fixed at one end of the rotating shaft 402 causes the rotating shaft 402 to vibrate. The rotating shaft 402 is mounted on the sorting frame 2 via bearings, so the sorting frame 2 also vibrates. The flexible coupling 404 flexibly connects the turntable 405 to the rotating shaft 402, preventing the vibration of the rotating shaft 402 from affecting the power transmission of the drive motor 403.

[0032] In one specific implementation, such as Figure 3 and Figure 4As shown, a cover plate 12 is detachably installed on the top of the sorting frame 2. A feeding port 13 is opened on the cover plate 12, and a feeding hopper 14 is fixedly installed at the feeding port 13. The cover plate 12 can make the screening space of the sorting frame 2 relatively closed, reducing dust scattering, and the feeding hopper 14 can increase the feeding efficiency.

[0033] In use, this invention first starts the eccentric vibration motor 4 via a controller. The eccentric vibration motor 4 drives the turntable 405 via a belt. The turntable 405 transmits power to the rotating shaft 402 via a flexible coupling 404. The flexible coupling 404 acts as a shock absorber. The eccentric rotor 401, fixed to one end of the rotating shaft 402, causes the rotating shaft 402 to vibrate. The rotating shaft 402 is mounted on the sorting frame 2 via bearings, so the sorting frame 2 also vibrates. The flexible coupling 404 keeps the turntable 405 and the rotating shaft 402 flexibly connected. To prevent the vibration of the rotating shaft 402 from affecting the power transmission of the drive motor 403, a protective sleeve is provided on the outside of the rotating shaft 402. The two ends of the protective sleeve are fixedly installed on the two ends of the inner wall of the sorting frame 2, which serves a protective function. At this time, the photoinitiator that needs to be graded after crystallization is fed into the feeding hopper 14. The photoinitiator enters the sorting frame 2 through the feeding port 13 and falls onto the coarse screen plate 301. The entire sorting frame 2 is inclined downward at one end, so the photoinitiator moves downward under the action of vibration. During this process, it will pass through the screen. 7. At this point, larger agglomerates are separated by screen 7 and fall from agglomerate outlet 201 into the collection container below. Coarse material screened by coarse screen plate 301 falls onto fine screen plate 302. As it moves downward, the coarse material is screened out by fine screen plate 302, passes through fine screen discharge port 15 into coarse screen outlet 202, and then falls into coarse screen discharge hopper 501 below. Fine material screened by fine screen plate 302 falls to the bottom of sorting frame 2, is screened out by screen 7 at fine screen outlet 204, and falls through fine screen outlet 203 into the collection container below. In the fine screening hopper 502, the fine material screened by the screen 7 at the fine screening outlet 204 falls directly into the fine screening hopper 503, thus completing the grading and screening. The material falling into the coarse screening hopper 501, fine screening hopper 502 and fine screening hopper 503 can flow out through the openings set at the bottom. A detachable baffle is set between the coarse screen plate 301 and the bottom of the sorting frame 2. The baffle serves to fix the coarse screen plate 301 and the fine screen plate 302. After the baffle is removed, the coarse screen plate 301 and the fine screen plate 302 can be removed in sequence.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A discharge device for photoinitiator production, characterized by: include, The screening device (1) includes a sorting frame (2), a multi-stage sieve plate (3), and an eccentric vibration motor (4). The sorting frame (2) is concave. One end of the sorting frame (2) has an agglomerate discharge port (201). The bottom of the sorting frame (2) has a coarse sieve discharge port (202), a fine sieve discharge port (203), and a fine sieve discharge port (204). The multi-stage sieve plate (3) is fixedly installed inside the sorting frame (2). The multi-stage sieve plate (3) includes a coarse sieve plate (301) and a fine sieve plate (302). The coarse sieve plate (301) and the fine sieve plate (302) are provided with two symmetrical guide blocks (6) at their upper and lower ends. The two guide blocks (6) are fixedly installed on both sides of the inner wall of the sorting frame (2). The eccentric vibration motor (4) is located on one side of the sorting frame (2). The discharge device (5) includes a coarse screen discharge hopper (501), a fine screen discharge hopper (502), and a high screen discharge hopper (503); The discharge device (5) is fixedly installed at the bottom of the screening device (1), and the coarse screen discharge hopper (501), fine screen discharge hopper (502) and fine screen discharge hopper (503) are respectively fixedly installed at the coarse screen discharge port (202), fine screen discharge port (203) and fine screen discharge port (204).

2. The discharging device for producing photoinitiator according to claim 1, characterized in that: The coarse screen plate (301) and fine screen plate (302) are detachably installed in the sorting frame (2), and the coarse screen plate (301), fine screen plate (302) and fine screen outlet (204) are all detachably equipped with screens (7).

3. The discharging device for producing photoinitiator according to claim 2, characterized in that: The guide block (6) is attached to the edge of the screen (7) on one side. The lengths of the screens (7) of the coarse screen plate (301), fine screen plate (302) and fine screen outlet (204) increase sequentially. The screen (7) at the fine screen outlet (204) is located above the fine screen outlet (204).

4. The discharging device for producing photoinitiator according to claim 1, characterized in that: One end of the coarse screen plate (301) is located at the agglomerate outlet (201), and one end of the fine screen plate (302) is located at the coarse screen outlet (202). The fine screen plate (302) has a fine screen leakage port (15), which is located above the coarse screen outlet hopper (501).

5. The discharging device for producing photoinitiator according to claim 1, characterized in that: The coarse screen outlet (202), fine screen outlet (203) and fine screen outlet (204) are separated by two partitions (8), which are respectively attached to the bottom of the fine screen plate (302) and the sorting frame (2).

6. The discharging device for producing photoinitiator according to claim 1, characterized in that: The sorting frame (2) is fixedly installed with shock-absorbing platforms (9) on both sides. The bottom of the shock-absorbing platform (9) is fixedly connected with a shock-absorbing spring (10), and the bottom of the shock-absorbing spring (10) is fixedly connected with a support column (11).

7. The discharging device for producing photoinitiator according to claim 1, characterized in that: The eccentric vibration motor (4) includes an eccentric rotor (401), a rotating shaft (402), and a drive motor (403). The rotating shaft (402) passes through the sorting frame (2). One end of the rotating shaft (402) is fixedly connected to the eccentric rotor (401), and the other end of the rotating shaft (402) is connected to a turntable (405) through a flexible coupling (404). The output end of the drive motor (403) is poweredly connected to the turntable (405) through a belt.

8. The discharging device for producing photoinitiator according to claim 1, characterized in that: The top of the sorting frame (2) is detachably fitted with a cover plate (12), and the cover plate (12) has a feeding port (13), and a feeding hopper (14) is fixedly installed at the feeding port (13).

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