Stirred tank for photoinitiators

Abstract

The utility model discloses a kind of photoinitiator stirring tank, it is related to photoinitiator production technical field, including stirring tank, feed hopper and discharge port, the cover of being matched with is adapted on stirring tank, feed hopper is fixedly installed on the cover, discharge port is fixedly installed at the bottom of stirring tank, premixing component is provided in feed hopper, stirring assembly is provided in stirring tank, stirring assembly includes stirring rod, propelling stirring blade and turbine stirring blade, turbine stirring blade is set in the lower part of stirring rod, propelling stirring blade is set in the upper part of stirring rod, stirring rod rotation is arranged in the inside of stirring tank, the utility model is by setting propelling stirring blade and turbine stirring blade, under the cooperation of its joint, under the premise of preventing photoinitiator dispersion poor and local gathering in mixing process, further improve the mixing efficiency of material.

Description

Technical Field

[0001] This utility model relates to the field of photoinitiator production technology, specifically to a stirred tank for photoinitiators. Background Technology

[0002] Photoinitiators are compounds that can generate free radicals or ions through photoexcitation. They typically possess the following properties: Photosensitivity: Photoinitiators can absorb light of specific wavelengths, thus deriving a high-energy state or excited state through photoexcitation. High Chemical Reactivity: Excited photoinitiators can react with other molecules to generate free radicals or ions, initiating chemical reactions. Controllability: The activity of photoinitiators can be modulated by changing the intensity and wavelength of the light source. Photoinitiators are widely used in various fields, including photolithography, photopolymerization, photodegradation, and photocatalysis.

[0003] However, most existing photoinitiator stirring devices utilize a single stirring rod for mixing. When mixing small-scale batches of photoinitiators, the higher the viscosity of the photoinitiator system, the more difficult the mixing becomes, requiring stronger stirring forces (higher power, more suitable impeller design) and longer stirring times. In high-viscosity systems, using a single stirring rod for mixing makes the photoinitiator more prone to poor dispersion and localized aggregation, a phenomenon that urgently needs to be addressed by those in the field. Utility Model Content

[0004] The purpose of this invention is to provide a stirred tank for photoinitiators to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a stirring vessel for photoinitiators, comprising a stirring vessel, a feed hopper, and a discharge port, wherein a matching vessel cover is adapted to the stirring vessel, the feed hopper is fixedly installed on the vessel cover, the discharge port is fixedly installed at the bottom of the stirring vessel, a premixing component is provided inside the feed hopper, and a stirring component is provided inside the stirring vessel, the stirring component comprising a stirring rod, a propulsion stirring blade, and a turbine stirring blade, the turbine stirring blade being disposed at the lower part of the stirring rod, the propulsion stirring blade being disposed at the upper part of the stirring rod, and the stirring rod being rotatably disposed inside the stirring vessel.

[0006] According to the above technical solution, a first driving component is fixedly installed on the lid of the vessel. The output shaft of the first driving component is fixedly connected to one end of the stirring rod to drive the stirring rod to rotate circumferentially inside the stirring vessel. The end of the stirring rod away from the first driving component is connected to the inner bottom bearing of the stirring vessel through a first bearing.

[0007] According to the above technical solution, the top of the feeding hopper is fixedly equipped with a feed port for adding photoinitiator, the inside of the feeding hopper is fixedly connected with a bottom plate, the premixing component includes a second driving member, the second driving member is fixedly connected with a rotating rod, the rotating rod is connected to the bottom plate through a second bearing at its bottom, and a mixing rod is fixedly installed on the rotating rod.

[0008] According to the above technical solution, the base plate is provided with a solenoid valve for controlling the flow of the premixed liquid, and a pipe is installed on the solenoid valve.

[0009] According to the above technical solution, a connecting rod is fixedly connected to the stirring rod, and a scraper is fixedly connected to the end of the connecting rod away from the stirring rod.

[0010] According to the above technical solution, the stirring vessel is externally fixedly connected to a support.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By setting a premixing component, the photoinitiator is made into a concentrated liquid or solution and then added to the main reaction vessel, which makes it easier to disperse evenly. At the same time, the propulsion stirring blades set at the upper part of the stirring rod can generate a strong and directional axial flow. The strong axial flow can quickly transport the upper material to the bottom area of ​​the vessel. The tip of the turbine stirring blades set at the lower part of the stirring rod can generate a very high shear rate. The strong shear turbulence can promote the rapid mixing of materials at the molecular / microscale. Under the premise of avoiding poor dispersion and local aggregation, the mixing efficiency of materials is further improved. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0015] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0016] Figure 4 This is a three-dimensional structural diagram of the stirring component of this utility model.

[0017] In the diagram: 1. Mixing vessel; 2. Support frame; 3. Vessel lid; 4. First drive component; 5. Feed hopper; 6. Feed inlet; 7. Second drive component; 8. Discharge outlet; 9. Turbine agitator blade; 10. Propeller agitator blade; 11. Agitator rod; 111. First bearing; 12. Connecting rod; 13. Scraper; 14. Rotating rod; 141. Second bearing; 15. Mixing rod; 16. Base plate; 17. Solenoid valve; 18. Pipeline. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 The present invention provides a technical solution: a stirring vessel for photoinitiators, comprising a stirring vessel 1, a feed hopper 5 and a discharge port 8, wherein a matching vessel cover 3 is adapted to the stirring vessel 1, the feed hopper 5 is fixedly installed on the vessel cover 3, the discharge port 8 is fixedly installed at the bottom of the stirring vessel 1, a premixing component is provided inside the feed hopper 5, and a stirring component is provided inside the stirring vessel 1.

[0020] The stirring assembly includes a stirring rod 11, which is circumferentially rotatable inside the stirring vessel 1. The stirring vessel 1 and the stirring rod 11 are coaxially arranged. A propulsion stirring blade 10 is fixedly installed on the upper part of the stirring rod 11, and a turbine stirring blade 9 is fixedly installed on the lower part of the stirring rod 11.

[0021] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the premixing component is used to premix the photoinitiator to create a premixed liquid, which is easier to disperse evenly than directly adding solids or high-viscosity liquids. Simultaneously, the propulsion agitator 10 generates a strong, directional axial flow, rapidly transporting the upper layer of material to the bottom region, accelerating the mixing time. The turbine agitator 9's blade tip generates a high shear rate; the intense shear turbulence promotes rapid mixing of materials at the molecular / microscale, preventing localized aggregation of the photoinitiator due to poor dispersion and further improving the mixing rate, making it more efficient to use.

[0022] A first driving component 4 is fixedly installed on the lid 3. The output shaft of the first driving component 4 extends vertically downward through the lid 3. The output shaft of the first driving component 4 is fixedly connected to the stirring rod 11 through a coupling. The end of the stirring rod 11 away from the first driving component 4 is connected to the inner bottom bearing of the stirring vessel 1 through the first bearing 111.

[0023] It should be noted that the first driving component 4 can be a motor.

[0024] refer to Figure 1 , Figure 2 and Figure 4 As shown, the first driving component 4 drives the stirring rod 11 to rotate by rotating its output shaft. The propulsion stirring blade 10 and the turbine stirring blade 9 are fixedly connected to the stirring rod 11 and can rotate synchronously with the stirring rod 11.

[0025] A feed inlet 6 is fixedly installed on the top of the feed hopper 5. A bottom plate 16 is fixedly connected inside the feed hopper 5. The premixing component includes a second drive member 7, which is fixedly installed on the top of the feed hopper 5. The output end of the second drive member 7 is vertically downward and is fixedly connected to a rotating rod 14 through a coupling. The end of the rotating rod 14 away from the second drive member 7 is connected to the bottom plate 16 through a bearing 141. A mixing rod 15 is fixedly installed on the rotating rod 14.

[0026] It should be noted that the second driving component 7 can be a motor.

[0027] refer to Figure 1 , Figure 2 and Figure 3 As shown, the second driving component 7 drives the rotating rod 14 to rotate through the rotation of its output shaft, thereby indirectly driving the mixing rod 15 to rotate. The rotating mixing rod 15 makes it easier to mix and stir the photoinitiator premix liquid.

[0028] A solenoid valve 17 is fixedly installed on the base plate 16. The discharge end of the solenoid valve 17 is fixedly connected to a pipe 18, and the end of the pipe 18 is located inside the mixing tank 1.

[0029] It should be noted that the solenoid valve 17 is a mature existing technology, and will not be described in detail in this application.

[0030] refer to Figure 2 and Figure 3 As shown, after the photoinitiator in the feed hopper 5 is premixed, the premixed liquid in the feed hopper 5 can be discharged into the mixing tank 1 through the pipe 18 using the solenoid valve 17.

[0031] A connecting rod 12 is fixedly connected to the stirring rod 11. There are two sets of connecting rods 12, which are symmetrically arranged on the stirring rod 11. A scraper 13 is fixedly connected to the end of each set of connecting rods 12 away from the stirring rod 11. The blade of the scraper 13 is in sliding contact with the inner wall of the mixing vessel 1.

[0032] refer to Figure 2 and Figure 4As shown, when the first driving component 4 drives the stirring rod 11 to rotate, the stirring rod 11 will indirectly drive the connecting rod 12 to rotate, and the rotating connecting rod 12 will indirectly drive the scraper 13 at its end to clean the inner wall of the reactor 1.

[0033] Working principle: When the photoinitiator needs to be stirred and mixed, the solution to be mixed is first introduced into the reactor 1 through the feed port 6 on the feed hopper 5. Then, the solenoid valve 17 is closed, and the photoinitiator to be mixed and a small amount of solution are introduced into the feed hopper 5 through the feed port 6. The second drive unit 7 is started, and the rotation of the output shaft of the second drive unit 7 drives the rotating rod 14 to rotate, thereby indirectly driving the mixing rod 15 to mix and stir the photoinitiator and a small amount of solution in the feed hopper 5. After thorough stirring, the solenoid valve 17 is opened, and the premixed liquid is introduced into the reactor 1 through the solenoid valve 17 and the pipe 18. The first drive unit 7 is then started. The actuator 4 uses the rotation of the output shaft of the first driving component 4 to drive the stirring rod 11 to rotate. The stirring rod 11 indirectly drives the propulsion stirring blade 10 and the turbine stirring blade 9 to rotate. The propulsion stirring blade 10 can generate a strong, directional axial flow to quickly transport the upper layer of material to the bottom area of ​​the vessel. When the upper layer of material is quickly transported to the bottom area of ​​the vessel, the tip of the turbine stirring blade 9 can generate a very high shear rate. The strong shear turbulence can promote the rapid mixing of materials at the molecular / microscale, which can not only prevent the photoinitiator from agglomerating locally due to poor dispersion, but also further improve the mixing rate. After the mixing is completed, it can be discharged through the discharge port 8.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stirred tank for photoinitiators, comprising a stirred tank (1), a feed hopper (5), and a discharge port (8), characterized in that: The mixing vessel (1) is fitted with a matching vessel lid (3), the feed hopper (5) is fixedly installed on the vessel lid (3), the discharge port (8) is fixedly installed at the bottom of the mixing vessel (1), a premixing component is provided inside the feed hopper (5), and a mixing component is provided inside the mixing vessel (1). The mixing component includes: A stirring rod (11) is circumferentially arranged inside a stirring vessel (1), and the stirring vessel (1) and the stirring rod (11) are coaxially arranged. A stirring blade (10) is propelled and fixedly installed on the upper part of the stirring rod (11); Turbine stirring blade (9), which is fixedly installed on the lower part of stirring rod (11).

2. The stirred tank for photoinitiators according to claim 1, characterized in that: A first driving component (4) is fixedly installed on the lid (3). The output shaft of the first driving component (4) extends vertically downward through the lid (3). The output shaft of the first driving component (4) is fixedly connected to the stirring rod (11) through a coupling. The end of the stirring rod (11) away from the first driving component (4) is connected to the inner bottom bearing of the stirring vessel (1) through a first bearing (111).

3. The stirred tank for photoinitiators according to claim 1, characterized in that: The top of the feeding hopper (5) is fixedly equipped with a feeding port (6), and the bottom plate (16) is fixedly connected inside the feeding hopper (5). The premixing component includes a second driving member (7), which is fixedly installed on the top of the feeding hopper (5). The output end of the second driving member (7) is vertically downward and is fixedly connected to a rotating rod (14) through a coupling. The end of the rotating rod (14) away from the second driving member (7) is connected to the bottom plate (16) through a second bearing (141). A mixing rod (15) is fixedly installed on the rotating rod (14).

4. The stirred tank for photoinitiators according to claim 3, characterized in that: A solenoid valve (17) is fixedly installed on the base plate (16). The discharge end of the solenoid valve (17) is fixedly connected to a pipe (18), and the end of the pipe (18) is located inside the mixing tank (1).

5. The stirred tank for photoinitiators according to claim 1, characterized in that: A connecting rod (12) is fixedly connected to the stirring rod (11). There are two sets of connecting rods (12), which are symmetrically arranged on the stirring rod (11). A scraper (13) is fixedly connected to the end of each set of connecting rods (12) away from the stirring rod (11). The blade of the scraper (13) is in sliding contact with the inner wall of the stirring vessel (1).

6. The stirred tank for photoinitiators according to claim 1, characterized in that: The stirring vessel (1) is externally fixedly connected to a support (2).

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