Continuous crystallization device for cationic photoinitiator

Abstract

The utility model discloses a continuous crystallization device of a cationic photoinitiator, which relates to the technical field of production and processing of cationic photoinitiators and comprises a continuous crystallization component and a stirring component, electric rotating frames are mounted on two sides of the continuous crystallization component, moving frames are connected to two sides of the electric rotating frames, and the stirring component is mounted on the moving frames. The stirring assembly is mounted in the continuous crystallization assembly. According to the continuous crystallization device of the cationic photoinitiator, the stirring assembly is mounted in the continuous crystallization assembly, so that when the servo motor drives the stirring assembly to axially rotate in the vertical direction, materials can be rapidly mixed to promote the crystallization rate, and meanwhile, the situation that crystals are adhered to the inner wall of the continuous crystallization assembly can be reduced as much as possible; the moving frame is matched with the electric rotating frame for use, so that the whole device has moving flexibility to a certain degree and placement stability, and meanwhile, the continuous crystallization assembly can be adjusted in a swinging manner, so that the structure of the continuous crystallization assembly can be conveniently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of cationic photoinitiators, in particular to a continuous crystallization device for cationic photoinitiators. Background Art

[0002] Cationic photoinitiators are another very important type of photoinitiator, including diazonium salts, diaryliodonium salts, triarylsulfonium salts, alkylsulfonium salts, iron aromatic salts, sulfonyloxy ketones and triarylsiloxanes. Its basic function is to activate the molecule to an excited state by light, and the molecule undergoes a series of decomposition reactions, ultimately producing a super strong proton acid (also called Bronsted acid), which acts as an active species for cationic polymerization and initiates polymerization of epoxy compounds, vinyl ethers, lactones, acetals, cyclic ethers, etc.

[0003] In the production and processing of cationic photoinitiators, a type of equipment that can realize continuous crystallization production is used, namely, a continuous crystallization device. A continuous crystallizer refers to a device that can realize continuous crystallization production compared to traditional single-pot intermittent crystallization. Evaporative crystallization also belongs to the category of continuous crystallization, but usually refers to cooling crystallization or reaction crystallization equipment, that is, a crystallization device that can realize continuous feeding, continuous discharging, and continuous filtration.

[0004] During the operation of conventional continuous crystallization equipment, the crystal growth cycle is long, which makes the overall processing cycle of the product also extended. During this process, the precipitated crystals will adhere to the inner wall of the kettle body, causing the holes on the inner wall of the kettle body to become blocked, and at the same time increasing the complexity of subsequent maintenance and cleaning.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a continuous crystallization device of a cationic photoinitiator is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a continuous crystallization device for a cationic photoinitiator to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous crystallization device for a cationic photoinitiator, comprising a continuous crystallization component and a stirring component, electric rotating frames are installed on both sides of the continuous crystallization component, and movable frames are connected to both sides of the electric rotating frames, a servo motor is installed at the bottom of the continuous crystallization component, the stirring component is installed inside the continuous crystallization component, the stirring component comprises a transmission roller, a mixing rod, a stabilizing frame and a scraper, a mixing rod is horizontally installed at the top end of the transmission roller, a stabilizing frame is installed at the lower end of the transmission roller, and a scraper is vertically installed at one end of the stabilizing frame away from the transmission roller.

[0008] Furthermore, the continuous crystallization assembly includes an upper crystallization kettle, a connecting shaft, an inlet and outlet valve and a lower crystallization kettle, wherein connecting shafts are installed on both sides of the upper crystallization kettle, the inlet and outlet valves are installed on the top of the upper crystallization kettle, and the lower crystallization kettle is installed at the bottom of the upper crystallization kettle.

[0009] Furthermore, the upper crystallization kettle and the lower crystallization kettle are connected by a flange structure, and one end of the connecting shaft away from the upper crystallization kettle is connected to the power output end of the electric rotating frame.

[0010] Furthermore, the mobile frame includes a protective frame, a buffer column, an anti-collision plate and a lifting column. The buffer column is horizontally installed on one side of the protective frame, and the end of the buffer column away from the protective frame is connected to the anti-collision plate, and the lifting columns are vertically installed on the left and right ends of the protective frame.

[0011] Furthermore, the mobile frame also includes a support frame and running wheels. The support frame is obliquely installed on a side of the protective frame away from the buffer column, and the running wheels are installed on the bottom of the support frame.

[0012] Furthermore, the protection frame is arranged in an "H"-shaped structure, and the buffer column, the lifting column and the support frame are symmetrically installed at both ends of one side of the protection frame.

[0013] Furthermore, the anti-collision plate and the protection frame are parallel to each other, and the support frame is fixedly installed on the side of the electric rotating frame.

[0014] Furthermore, the mixing rods, stabilizing frames and scrapers are arranged in three groups in a circular array with the driving roller as the center, and the side of the scrapers away from the stabilizing frames is in contact with the inner wall surfaces of the upper crystallization kettle and the lower crystallization kettle.

[0015] The utility model provides a continuous crystallization device for a cationic photoinitiator, which has the following beneficial effects:

[0016] 1. The utility model has a stirring component installed inside the continuous crystallization component. When the servo motor at the bottom of the continuous crystallization component is started, the stirring component connected thereto is driven to rotate vertically axially inside the continuous crystallization component. During this process, the mixing rod horizontally arranged at the top of the transmission roller in a three-pronged structure will play a role in stirring the materials. The scraper connected to the transmission roller by the stabilizing frame will scrape along the inner wall surface of the continuous crystallization component as the transmission roller rotates. By using the above structure, while mixing and stirring the materials, it is possible to prevent crystals from adhering to and accumulating on the inner wall surface of the continuous crystallization component, so as to reduce unnecessary influence on subsequent discharging and maintenance. In addition, driven by the transmission roller, the stabilizing frame and the scraper can simultaneously clean the inner wall of the continuous crystallization component and assist the mixing rod in stirring and mixing, so as to maximize the mixing of materials and accelerate the rate of crystal formation.

[0017] 2. The utility model installs mobile frames on both sides of the electric rotating frame, wherein the whole device can be relatively flexibly moved on the ground through the structural activity of the walking wheels installed at the bottom of the support frame, thereby facilitating the transportation and movement of the equipment, and the buffer column and anti-collision plate installed on one side of the protective frame can alleviate the structural collision on the front and rear sides of the whole device during the movement as much as possible, thereby playing an effective structural protection role, and the structural telescopic adjustment of the lifting column can make the whole device play the role of ground support in a static state, thereby avoiding the occurrence of "slipping" caused by the activity of the walking wheels.

[0018] 3. The utility model installs connecting shafts on both sides of the upper crystallization kettle, and utilizes the connecting shafts to connect with the power output end of the electric rotating frame, so that under the rotation adjustment of the electric rotating frame, the entire continuous crystallization assembly can swing left and right in the vertical direction. At the same time, since the upper crystallization kettle and the lower crystallization kettle are connected by a flange structure, while ensuring the sealing of the structure, the entire continuous crystallization assembly has a certain structural disassembly ability, and the structural rotation adjustability provided by the electric rotating frame is convenient for operators to clean and maintain the device structure, thereby ensuring the structural flexibility and convenience of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main body side view of a continuous crystallization device for a cationic photoinitiator of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a continuous crystallization component of a continuous crystallization device for a cationic photoinitiator of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of a mobile frame of a continuous crystallization device for a cationic photoinitiator of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of a stirring component of a continuous crystallization device for a cationic photoinitiator.

[0023] In the figure: 1. continuous crystallization component; 101. upper crystallization kettle; 102. connecting shaft; 103. inlet and outlet valve; 104. lower crystallization kettle; 2. electric rotating frame; 3. mobile frame; 301. protective frame; 302. buffer column; 303. anti-collision plate; 304. lifting column; 305. support frame; 306. walking wheel; 4. servo motor; 5. stirring component; 501. transmission roller; 502. mixing rod; 503. stabilizing frame; 504. scraper. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] like Figures 1 to 4 As shown, a continuous crystallization device for a cationic photoinitiator comprises a continuous crystallization component 1 and a stirring component 5. Electric rotating frames 2 are installed on both sides of the continuous crystallization component 1, and moving frames 3 are connected to both sides of the electric rotating frames 2. A servo motor 4 is installed at the bottom of the continuous crystallization component 1. The stirring component 5 is installed inside the continuous crystallization component 1. The stirring component 5 comprises a transmission roller 501, a mixing rod 502, a stabilizing frame 503 and a scraper 504. The mixing rod 502 is horizontally installed at the top of the transmission roller 501, and the stabilizing frame 503 is installed at the lower end of the transmission roller 501. The scraper 504 is vertically installed at one end of the stabilizing frame 503 away from the transmission roller 501. The mixing rod 502 is installed at the top of the transmission roller 501, and the stabilizing frame 503 is installed at the lower end of the transmission roller 501. 02. There are three groups of stabilizing frames 503 and scrapers 504 in a circular array with the driving roller 501 as the center, and the side of the scrapers 504 away from the stabilizing frame 503 is in contact with the inner wall surfaces of the upper crystallization kettle 101 and the lower crystallization kettle 104. When the servo motor 4 at the bottom of the continuous crystallization component 1 is started, the stirring component 5 connected thereto is driven to rotate vertically axially inside the continuous crystallization component 1. During this process, the mixing rod 502 horizontally arranged at the top of the driving roller 501 in a three-pronged structure will play a role in stirring the materials. The scrapers 504 connected to the stabilizing frame 503 and the driving roller 501 will scrape along the inner wall surface of the continuous crystallization component 1 as the driving roller 501 rotates.

[0026] like Figures 1 to 4 As shown, the continuous crystallization component 1 includes an upper crystallization kettle 101, a connecting shaft 102, an inlet and outlet valve 103 and a lower crystallization kettle 104, the connecting shafts 102 are installed on both sides of the upper crystallization kettle 101, and the inlet and outlet valves 103 are installed on the top of the upper crystallization kettle 101, and the lower crystallization kettle 104 is installed on the bottom of the upper crystallization kettle 101, the upper crystallization kettle 101 and the lower crystallization kettle 104 are connected by a flange structure, and the end of the connecting shaft 102 away from the upper crystallization kettle 101 is connected to the power output end of the electric rotating frame 2, by installing the connecting shafts 102 on both sides of the upper crystallization kettle 101, and connecting the connecting shafts 102 to the power output end of the electric rotating frame 2, so that under the rotation adjustment of the electric rotating frame 2, the entire continuous crystallization component 1 can swing left and right in the vertical direction.

[0027] like Figures 1 to 4As shown, the mobile frame 3 includes a protective frame 301, a buffer column 302, an anti-collision plate 303 and a lifting column 304. The buffer column 302 is horizontally installed on one side of the protective frame 301, and the end of the buffer column 302 away from the protective frame 301 is connected to the anti-collision plate 303, and the lifting columns 304 are vertically installed on the left and right ends of the protective frame 301. The mobile frame 3 also includes a support frame 305 and a walking wheel 306. The support frame 305 is obliquely installed on the side of the protective frame 301 away from the buffer column 302, and the bottom of the support frame 305 is installed with a walking wheel 306. 06. The protection frame 301 is arranged in an "H"-shaped structure, and the buffer column 302, the lifting column 304 and the support frame 305 are symmetrically installed at both ends of one side of the protection frame 301. The anti-collision plate 303 and the protection frame 301 are parallel to each other. The support frame 305 is fixedly installed on the side of the electric rotating frame 2. The mobile frame 3 is installed on both sides of the electric rotating frame 2. Through the structural activity of the walking wheel 306 installed at the bottom of the support frame 305, the whole device can be relatively flexibly moved on the ground, thereby facilitating the transportation and movement of the equipment.

[0028] In summary, if Figures 1 to 4 As shown, when the continuous crystallization device of the cationic photoinitiator is used, first, when the servo motor 4 at the bottom of the continuous crystallization component 1 is started, it will drive the stirring component 5 connected to its power output end by the transmission roller 501 to rotate vertically in the interior of the continuous crystallization component 1. Under the rotation of the transmission roller 501, the mixing rod 502 at the top and the scraper 504 connected to it by the lower end through the stabilizing frame 503 mix and stir the raw materials injected by the inlet and outlet valves 103 in the upper crystallization kettle 101 and the lower crystallization kettle 104. At the same time, the scraper 504 will also scrape against the inner walls of the upper crystallization kettle 101 and the lower crystallization kettle 104 to avoid crystal adhesion.

[0029] When the entire device is moved, the walking wheels 306 at the bottom of the support frames 305 at both ends of the electric rotating frame 2 can be used to flexibly transport and move it on the ground. When the entire device needs to be stationary, it is only necessary to use the lifting columns 304 at both ends of the protective frame 301 and use the telescopic structure to make the bottom end grounded, thereby playing a role of stable support. During the movement of the entire device, the buffer columns 302 and anti-collision plates 303 on one side of the protective frame 301 can alleviate the structural collision on the front and rear sides of the entire device during the movement as much as possible. When the continuous crystallization component 1 needs to be maintained, the flange structure between the upper crystallization kettle 101 and the lower crystallization kettle 104 can be used for structural disassembly according to operational needs. At the same time, the connecting shaft 102 can be driven by the electric rotating frame 2 to perform horizontal axial rotation, so that the upper crystallization kettle 101 can be swung and adjusted to facilitate internal maintenance.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A continuous crystallization device for a cationic photoinitiator, comprising a continuous crystallization component (1) and a stirring component (5), characterized in that: Electric rotating frames (2) are installed on both sides of the continuous crystallization component (1), and movable frames (3) are connected to both sides of the electric rotating frames (2). A servo motor (4) is installed at the bottom of the continuous crystallization component (1). The stirring component (5) is installed inside the continuous crystallization component (1). The stirring component (5) comprises a transmission roller (501), a mixing rod (502), a stabilizing frame (503) and a scraper (504). The top end of the transmission roller (501) is horizontally installed with a mixing rod (502), the lower end of the transmission roller (501) is installed with a stabilizing frame (503), and the scraper (504) is vertically installed at one end of the stabilizing frame (503) away from the transmission roller (501).

2. The continuous crystallization device of a cationic photoinitiator according to claim 1, characterized in that: The continuous crystallization assembly (1) comprises an upper crystallization kettle (101), a connecting shaft (102), an inlet and outlet valve (103) and a lower crystallization kettle (104), wherein the connecting shaft (102) is installed on both sides of the upper crystallization kettle (101), the inlet and outlet valve (103) is installed on the top of the upper crystallization kettle (101), and the lower crystallization kettle (104) is installed on the bottom of the upper crystallization kettle (101).

3. A continuous crystallization device for a cationic photoinitiator according to claim 2, characterized in that: The upper crystallization kettle (101) and the lower crystallization kettle (104) are connected by a flange structure, and the end of the connecting shaft (102) away from the upper crystallization kettle (101) is connected to the power output end of the electric rotating frame (2).

4. The continuous crystallization device of a cationic photoinitiator according to claim 1, characterized in that: The mobile frame (3) comprises a protective frame (301), a buffer column (302), an anti-collision plate (303) and a lifting column (304); the buffer column (302) is horizontally installed on one side of the protective frame (301), and the end of the buffer column (302) away from the protective frame (301) is connected to the anti-collision plate (303); and the lifting columns (304) are vertically installed on the left and right ends of the protective frame (301).

5. The continuous crystallization device of a cationic photoinitiator according to claim 4, characterized in that: The mobile frame (3) further comprises a support frame (305) and running wheels (306); the support frame (305) is obliquely mounted on a side of the protective frame (301) away from the buffer column (302), and the running wheels (306) are mounted on the bottom of the support frame (305).

6. The continuous crystallization device of a cationic photoinitiator according to claim 5, characterized in that: The protection frame (301) is arranged in an "H"-shaped structure, and the buffer column (302), the lifting column (304) and the support frame (305) are all symmetrically installed at two ends of one side of the protection frame (301).

7. A continuous crystallization device for a cationic photoinitiator according to claim 6, characterized in that: The anti-collision plate (303) and the protection frame (301) are parallel to each other, and the support frame (305) is fixedly installed on the side of the electric rotating frame (2).

8. The continuous crystallization device of a cationic photoinitiator according to claim 2, characterized in that: The mixing rods (502), stabilizing frames (503) and scrapers (504) are arranged in three groups in a circular array with the driving roller (501) as the center, and the side of the scrapers (504) away from the stabilizing frames (503) is in contact with the inner wall surfaces of the upper crystallization kettle (101) and the lower crystallization kettle (104).

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