Photoinitiator drying device

Abstract

The photoinitiator drying device comprises a box body, bottom feet, a feeding port, a discharging pipe, an air outlet and an air spraying pipe, vibration drying discs are installed in a drying cavity of the box body, a plurality of discharging holes are formed in the bottoms of the vibration drying discs, an installation hole for a push rod to penetrate through is formed in the middle of the lower vibration drying disc, and the air spraying pipe is installed in the installation hole. The bottom end of the push rod is connected with an air cylinder installed at the bottom of the box body, the push rod is provided with two ejector blocks, the two ejector blocks are located below the upper vibration drying disc and the lower vibration drying disc respectively, springs are arranged above the ejector blocks, and the upper ends of the springs are supported below the vibration drying discs. The air spraying pipe is arranged below the lower vibration drying disc, and air spraying holes are formed in the air spraying pipe; according to the photoinitiator drying device, photoinitiators can be continuously dried, the drying process is carried out in multiple sections, the falling speed of materials is reduced, the materials are in full contact with dried hot air, and therefore the drying effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of photoinitiator production, and particularly relates to a photoinitiator drying device. Background Art

[0002] A photoinitiator, also known as a photosensitizer or a photo-curing agent, is a kind of compound that can absorb energy of a certain wavelength in the ultraviolet region (250 - 420 nm) or the visible light region (400 - 800 nm) to generate free radicals, cations, etc., thereby initiating the polymerization and cross-linking curing of monomers. There is a certain amount of moisture in the solid particles of the photoinitiator. In order to ensure the quality of the photoinitiator, it needs to be dried, so that it has strong stability and a longer storage time.

[0003] Existing drying devices usually use a drying oven for hot air drying. Before drying, the photoinitiator material needs to be evenly laid on the drying tray, and then the drying tray is placed in the drying oven. The drying process requires workers to transfer in the middle, and the machine needs to be stopped to replace the material, so it cannot work continuously, resulting in low drying efficiency. Moreover, the material may be contaminated during the intermediate transfer process. In view of the above problems, the utility model provides a solution. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a photoinitiator drying device.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A photoinitiator drying device, comprising a box body, feet, a feed inlet, a discharge pipe, an air outlet and a spray pipe. The feet are arranged at the bottom of the box body. The feed inlet and the air outlet are arranged at the top of the box body. The discharge pipe is arranged on the side of the bottom of the drying cavity of the box body. A valve is installed on the discharge pipe. A vibrating drying tray is installed in the drying cavity of the box body. The vibrating drying tray comprises an upper vibrating drying tray and a lower vibrating drying tray. The upper vibrating drying tray is located above the lower vibrating drying tray. An installation seat is arranged on the inner wall of the drying cavity. A guide rod is arranged on the installation seat. A through hole for the guide rod to pass through is arranged on the outside of the vibrating drying tray. The outside of the vibrating drying tray is installed on the installation seat through the through hole. A plurality of blanking holes are arranged at the bottom of the vibrating drying tray. An installation hole for a push rod to pass through is arranged at the middle position of the lower vibrating drying tray. The bottom end of the push rod is connected to a cylinder installed at the bottom of the box body. Two top blocks are arranged on the push rod. The two top blocks are respectively located below the upper vibrating drying tray and the lower vibrating drying tray. A spring is arranged above the top block. The upper end of the spring supports below the vibrating drying tray. A sliding material pipe is installed at the bottom of the feed inlet. An induced draft fan is installed at the air outlet. The spray pipe is arranged below the lower vibrating drying tray. Spray holes are arranged on the spray pipe. The spray pipe is connected to a joint installed outside the box body. The joint air pipe is connected to a hot air source.

[0007] Further, the cross-sections of the upper vibrating drying tray and the lower vibrating drying tray are in a W-shaped structure, and the blanking holes are uniformly arranged at the bottom of the W-shaped structure.

[0008] Further, the sliding material pipe is an arc-shaped pipe, and the end of the sliding material pipe is directly above the upper vibrating drying tray.

[0009] Further, the spray pipe is an annular pipe, and the jet holes on the spray pipe are arranged on its upper end face.

[0010] Further, an inclined material guiding bottom surface is arranged at the bottom of the drying cavity, and the discharge pipe is arranged at the lowest side of the material guiding bottom surface.

[0011] In summary, the utility model has the following beneficial effects: The utility model can continuously dry the photoinitiator. The drying process is carried out in multiple stages, delaying the falling speed of the material and fully contacting with the hot air for drying, so as to ensure the drying effect. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the utility model;

[0013] Figure 2 is Figure 1 the partial enlarged view of

[0014] In the figure, 1 is the box body; 2 is the foot; 3 is the feed inlet; 4 is the sliding material pipe; 5 is the discharge pipe; 6 is the valve; 7 is the upper vibrating drying tray; 8 is the lower vibrating drying tray; 9 is the push rod; 10 is the air outlet; 11 is the induced draft fan; 12 is the air injection pipe; 13 is the joint; 14 is the mounting seat; 15 is the cylinder; 16 is the material guiding bottom surface; 17 is the guiding rod; 18 is the top block; 19 is the spring; 20 is the blanking hole. Detailed implementation mode

[0015] The following further elaborates on the present utility model in conjunction with the attached drawings. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0016] As Figure 1 and Figure 2 shown, a photoinitiator drying device includes a box body 1, feet 2, a feed inlet 3, a discharge pipe 5, an air outlet 10, and an air injection pipe 12. The feet 2 are arranged at the bottom of the box body 1. The feed inlet 3 and the air outlet 10 are arranged at the top of the box body 1. The discharge pipe 5 is arranged on the side of the bottom of the drying cavity of the box body 1. A valve 6 is installed on the discharge pipe 5. A vibrating drying tray is installed in the drying cavity of the box body 1. The vibrating drying tray includes an upper vibrating drying tray 7 and a lower vibrating drying tray 8. The upper vibrating drying tray 7 is located above the lower vibrating drying tray 8. A mounting seat 14 is provided on the inner wall of the drying cavity. A guiding rod 17 is provided on the mounting seat 4. Through holes for the guiding rod 17 to pass through are provided on the outside of the vibrating drying tray. The outside of the vibrating drying tray is installed on the mounting seat 14 through the through holes. A plurality of blanking holes 20 are provided at the bottom of the vibrating drying tray. An installation hole for the push rod 9 to pass through is provided at the middle position of the lower vibrating drying tray 8. The bottom end of the push rod 9 is connected to a cylinder 15 installed at the bottom of the box body 1. Two top blocks 18 are provided on the push rod 9. The two top blocks 18 are respectively located below the upper vibrating drying tray 7 and the lower vibrating drying tray 8. A spring 19 is provided above the top block 18. The upper end of the spring 19 is supported below the vibrating drying tray. A sliding material pipe 4 is installed at the bottom of the feed inlet 3. An induced draft fan 11 is installed at the air outlet 10. The air injection pipe 12 is arranged below the lower vibrating drying tray 8. Air injection holes are provided on the air injection pipe 12. The air injection pipe 12 is connected to a joint 13 installed outside the box body 1. The joint 13 is connected to a hot air source through an air pipe.

[0017] Further, as Figure 2As shown, the cross-sections of the upper vibrating drying tray 7 and the lower vibrating drying tray 8 are in a W-shaped structure. The material discharge holes 20 are evenly arranged at the bottom of the W-shaped structure. The photoinitiator will fall into the annular groove of the W-shaped structure and then be discharged through the material discharge holes 20 at the bottom of the annular groove, contacting the upward drying hot air for drying, thereby improving the drying efficiency.

[0018] Further, the material sliding pipe 4 is an arc-shaped pipe, and the end of the material sliding pipe 4 is directly above the upper vibrating drying tray 7. The material falling from the material sliding pipe 4 lands on the protrusion at the middle position of the upper vibrating tray 7, scatters after hitting the protrusion, and then falls into the annular groove.

[0019] Further, the air spraying pipe 12 is an annular pipe, and the air spraying ports on the air spraying pipe 12 are arranged on its upper end surface. Specifically, refer to Figure 1 As shown, its air spraying ports are directly opposite to the material discharge holes 20 of the lower vibrating drying tray 7, and are in full contact with the falling material.

[0020] Further, an inclined material guiding bottom surface 16 is provided at the bottom of the drying chamber, and the discharge pipe 5 is arranged at the lowest side of the material guiding bottom surface 16. This setting facilitates the collection of materials.

[0021] Working principle: The photoinitiator material enters the drying chamber of the box body 1 from the feed port 3. First, it hits the middle position of the upper vibrating drying tray 7 for material scattering. After the material scatters around, it falls into the annular groove of the upper vibrating drying tray 7. In this process, the first-stage drying is carried out. The air cylinder 15 expands and contracts within a small range, driving the upper vibrating drying tray 7 and the lower vibrating drying tray 8 to vibrate. During the vibration process, the material on the upper vibrating drying tray 7 falls along the material discharge holes 20, and contacts the hot air for the second-stage drying during the falling process. The lower vibrating drying tray 8 vibrates, and the material then falls from the material discharge holes 20 of the lower vibrating drying tray 8, and contacts the hot air sprayed by the air spraying pipe 12 for the third-stage drying. The dried material is guided by the material guiding bottom surface 16 and finally collected from the discharge pipe 5. The drying hot air moves from bottom to top and is finally discharged from the air outlet 10. The material stays in the upper vibrating drying tray 7 and the lower vibrating drying tray 8 for a certain period of time and can also be dried to a certain extent.

[0022] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A photoinitiator drying device, comprising a box body (1), feet (2), a feed inlet (3), a discharge pipe (5), an air outlet (10) and a jet pipe (12), wherein the feet (2) are arranged at the bottom of the box body (1), the feed inlet (3) and the air outlet (10) are arranged at the top of the box body (1), the discharge pipe (5) is arranged on the side of the bottom of the drying chamber of the box body (1), and a valve (6) is installed on the discharge pipe (5), and it is characterized in that: A vibrating drying tray is installed in the drying cavity of the box body (1). The vibrating drying tray includes an upper vibrating drying tray (7) and a lower vibrating drying tray (8). The upper vibrating drying tray (7) is located above the lower vibrating drying tray (8). An installation seat (14) is provided on the inner wall of the drying cavity. A guide rod (17) is provided on the installation seat (14). A through hole for the guide rod (17) to pass through is provided on the outer side of the vibrating drying tray. The vibrating drying tray is installed on the installation seat (14) through the through hole on the outer side. A plurality of blanking holes (20) are provided at the bottom of the vibrating drying tray. An installation hole for the push rod (9) to pass through is provided at the middle position of the lower vibrating drying tray (8). The bottom end of the push rod (9) is connected to a cylinder (15) installed at the bottom of the box body (1). Two top blocks (18) are provided on the push rod (9). The two top blocks (18) are respectively located below the upper vibrating drying tray (7) and the lower vibrating drying tray (8). A spring (19) is provided above the top block (18). The upper end of the spring (19) is supported below the vibrating drying tray. A sliding material pipe (4) is installed at the bottom of the feed inlet (3). An induced draft fan (11) is installed at the air outlet (10). The air spraying pipe (12) is arranged below the lower vibrating drying tray (8). Air spraying holes are provided on the air spraying pipe (12). The air spraying pipe (12) is connected to a joint (13) installed outside the box body (1). The joint (13) is connected to a hot air source through a trachea.

2. The drying device for photoinitiator according to claim 1, characterized in that: The cross-sections of the upper vibrating drying tray (7) and the lower vibrating drying tray (8) are in a W-shaped structure, and the blanking holes (20) are uniformly arranged at the bottom of the W-shaped structure.

3. The drying device for photoinitiator according to claim 2, characterized in that: The sliding material pipe (4) is an arc-shaped pipe, and the end of the sliding material pipe (4) is directly above the upper vibrating drying tray (7).

4. The drying device for photoinitiator according to claim 3, wherein: The air spraying pipe (12) is an annular pipe, and the air spraying ports on the air spraying pipe (12) are arranged on its upper end face.

5. The drying device for photoinitiator according to claim 4, characterized in that: An inclined material guiding bottom surface (16) is provided at the bottom of the drying cavity, and the discharge pipe (5) is arranged at the lowest side of the material guiding bottom surface (16).

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