Ultraviolet absorber reduced pressure concentration device

Abstract

The utility model relates to the technical field of decompression concentration device, and disclose ultraviolet absorbent decompression concentration device, including vacuum evaporation jar, the top end cover of vacuum evaporation jar is equipped with the sealing cover, first motor, install in the front and back two sides of sealing cover top, the outer end of plug rod all is connected with second hinged ear, the bottom of assembly station is connected with assembly column, the inside of assembly station and assembly column all inserts and arranges the stirring shaft, the outside both sides of stirring shaft are connected with horizontal vane, the outside both sides of stirring shaft are installed with vertical vane between the position of horizontal vane. This ultraviolet absorbent decompression concentration device, through the rotation of cam driven by first motor, thereby can promote horizontal arm, second motor and the up-down reciprocating motion of assembly station, make horizontal vane and vertical vane carry on the up-down vibration while rotating, break the limitation of traditional single rotation stirring, make the movement track of material in the device more complex and changeable.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum concentration devices, specifically a vacuum concentration device for ultraviolet absorbers. Background Technology

[0002] In the production of ultraviolet absorbers, vacuum concentration is a crucial process. Its core objective is to lower the boiling point of the solution and achieve efficient solvent removal at lower temperatures, thereby obtaining a high-purity, high-concentration ultraviolet absorber product. Traditional vacuum concentration devices typically employ a single rotary stirring method, where a motor drives a stirring shaft to rotate blades, utilizing the shear force of the blades to propel the material. However, this traditional stirring method has significant limitations. Because the blades can only rotate in one direction, the material's trajectory is relatively fixed, easily creating dead zones within the device. This leads to localized material accumulation and uneven mixing, consequently affecting the stability and efficiency of the concentration process.

[0003] Common vacuum concentration devices often employ stirring mechanisms that only achieve horizontal rotation, lacking vertical disturbance. This structural defect makes it difficult for materials to form effective three-dimensional mixing within the device. Horizontal material diffusion and vertical material convection cannot be fully coordinated, leading to significant local concentration differences. Furthermore, due to the simplistic stirring method, the thermal boundary layer within the solution is difficult to disrupt effectively, resulting in low heat transfer efficiency. This not only prolongs the evaporation and concentration time but also easily leads to localized overheating within the device, causing the ultraviolet absorber to decompose and deteriorate. Ultimately, this affects product quality and yield, failing to meet the operational requirements of vacuum concentration devices. Therefore, a vacuum concentration device for ultraviolet absorbers is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a UV absorber vacuum concentration device to solve the technical problem of significant local concentration differences caused by the single rotational motion of the stirring blades.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a UV absorber vacuum concentration device, comprising:

[0006] A vacuum evaporator, wherein a tubular condenser is installed on the outer side of the vacuum evaporator, a collection tank is installed at the bottom of the tubular condenser, and a sealing cap is provided on the top of the vacuum evaporator;

[0007] The first motor is installed on the front and rear sides of the top of the sealing cover. The outer end of the rotor of the first motor is coaxially connected to a cam. The top left and right sides of the sealing cover are connected to columns. The upper inner side of the column is welded with a first hinge lug.

[0008] A hinge shaft is inserted into the interior of a first hinge ear via a rotating shaft. The outer end of the hinge shaft is connected to a mounting cylinder. Each mounting cylinder has a rod inserted inside, and the outer end of each rod is connected to a second hinge ear.

[0009] An assembly platform is installed on the outside of the second hinge ear. An assembly column is connected to the bottom end of the assembly platform. A stirring shaft is inserted inside both the assembly platform and the assembly column. Horizontal blades are connected to the outer sides of the stirring shaft. Vertical blades are installed on the outer sides of the stirring shaft between the horizontal blades.

[0010] A first spring is sleeved on the outside of the insertion rod and located inside the mounting cylinder. A second spring is sleeved on the upper outside of the assembly column. A second motor is mounted on the top of the assembly table via a bracket, and a cross arm is connected to the top of the second motor.

[0011] Preferably, one end of each insertion rod located inside the mounting cylinder is coaxially connected to a disc, and the two ends of the first spring are respectively connected to the disc and the corresponding position of the inner cavity of the mounting cylinder. The added disc facilitates the compression of the first spring.

[0012] Preferably, the lower part of the assembly column penetrates the interior of the sealing cover, the top end of the stirring shaft penetrates the corresponding position on the top of the assembly table, and the top end of the stirring shaft is coaxially connected to the bottom end of the rotor of the second motor, which facilitates transmission and avoids interference.

[0013] Preferably, the number of horizontal and vertical blades is 4-8 sets, and the length of the stirring shaft is less than the height of the vacuum evaporator. The addition of multiple sets of horizontal and vertical blades improves the stirring quality.

[0014] Preferably, a base is fitted around the assembly column, the diameter of which is larger than that of the second spring, and the lower surface of the base is connected to the corresponding position of the outer side of the sealing cover, which facilitates the extension and retraction of the second spring.

[0015] Preferably, protrusions are installed on both sides of the bottom of the cross arm at positions corresponding to the cam, and the bottom of the protrusions is arc-shaped. A triangular reinforcing rib is installed on the top of the cross arm. The protrusions added to the bottom of the cross arm facilitate the cam to lift the cross arm, and the added triangular reinforcing rib improves the strength of the cross arm.

[0016] Compared with the prior art, the present invention provides a vacuum concentration device for ultraviolet absorbers, which has the following beneficial effects:

[0017] This UV absorber vacuum concentration device uses a first motor to drive the rotation of a cam, which in turn drives the horizontal arm, a second motor, and the assembly table to reciprocate up and down. This, in conjunction with the insertion rod and the first and second springs, causes the stirring shaft, horizontal blades, and vertical blades to vibrate up and down. Simultaneously, the second motor drives the rotation of the stirring shaft, causing the horizontal and vertical blades to vibrate up and down while rotating. This breaks the limitations of traditional single-rotation stirring, making the material's movement trajectory within the device more complex and varied. It allows for omnidirectional, dead-angle-free stirring, improving stirring efficiency. Furthermore, the cooperation between the horizontal and vertical blades promotes lateral diffusion and vertical convection of the material, achieving three-dimensional mixing and effectively avoiding localized concentration unevenness. This ensures a uniform and stable UV absorber concentration process. At the same time, the vibration stirring helps to break down the thermal boundary layer inside the solution, allowing heat to be transferred more quickly and evenly to the entire material system, effectively improving heat exchange efficiency, shortening evaporation and concentration time, and avoiding the risk of UV absorber decomposition due to localized overheating, thus guaranteeing product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the top structure of the sealing cap of this utility model;

[0020] Figure 3 This is a schematic diagram of the stirring shaft structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the hinge shaft and mounting cylinder structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the mounting cylinder of this utility model.

[0023] In the diagram: 1. Vacuum evaporator; 2. Tubular condenser; 3. Collection tank; 4. Sealing cover; 5. First motor; 6. Cam; 7. Column; 8. First hinge lug; 9. Hinge shaft; 10. Mounting cylinder; 11. Insert rod; 12. Disc; 13. First spring; 14. Second hinge lug; 15. Assembly table; 16. Assembly column; 17. Second spring; 18. Stirring shaft; 19. Horizontal blade; 20. Vertical blade; 21. Second motor; 22. Cross arm; 23. Protrusion; 24. Chassis. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution for a vacuum concentration device for ultraviolet absorbers, comprising a vacuum evaporator 1, a tubular condenser 2, a collection tank 3, a sealing cover 4, a first motor 5, a cam 6, a column 7, a first hinge lug 8, a hinge shaft 9, a mounting cylinder 10, a plug rod 11, a disc 12, a first spring 13, a second hinge lug 14, an assembly platform 15, an assembly column 16, a second spring 17, a stirring shaft 18, horizontal blades 19, vertical blades 20, a second motor 21, a cross arm 22, a protrusion 23, and a base 24.

[0026] Please see Figure 1 A tubular condenser 2 is installed on the outer side of the vacuum evaporator 1, a collection tank 3 is installed at the bottom of the tubular condenser 2, and a sealing cap 4 is installed on the top of the vacuum evaporator 1.

[0027] Please see Figure 2 The first motor 5 is installed on the front and rear sides of the top of the sealing cover 4. The outer end of the rotor of the first motor 5 is coaxially connected to a cam 6. The top left and right sides of the sealing cover 4 are both connected to columns 7. Please refer to [link / reference]. Figure 3 and Figure 4 The upper inner side of the column 7 is welded with a first hinge lug 8;

[0028] The hinge shaft 9 is inserted into the first hinge lug 8 via a rotating shaft. The outer end of the hinge shaft 9 is connected to a mounting sleeve 10. (See also...) Figure 5 Each of the mounting cylinders 10 has a rod 11 inserted inside, and the outer end of each rod 11 is connected to a second hinge lug 14.

[0029] Assembly table 15 is installed on the outside of the second hinge lug 14. The bottom end of assembly table 15 is connected to assembly post 16. (See attached image.) Figure 4 Both the assembly platform 15 and the assembly column 16 have stirring shafts 18 inserted inside. Please refer to [link / reference]. Figure 3 Horizontal blades 19 are connected to the outer sides of the stirring shaft 18, and vertical blades 20 are installed between the horizontal blades 19 on the outer sides of the stirring shaft 18. The number of horizontal blades 19 and vertical blades 20 is 4-8 sets. The length of the stirring shaft 18 is less than the height of the vacuum evaporator 1.

[0030] Please see Figure 5 The first spring 13 is sleeved on the outside of the insertion rod 11, located inside the mounting cylinder 10. Please refer to [link / reference]. Figure 2 and Figure 3 A second spring 17 is fitted on the upper outer side of the assembly column 16. A second motor 21 is mounted on the top of the assembly platform 15 via a bracket. The first motor 5 drives the rotation of the cam 6, which in turn drives the horizontal arm 22, the second motor 21, and the assembly platform 15 to reciprocate up and down. This, in conjunction with the insertion rod 11, the first spring 13, and the second spring 17, causes the stirring shaft 18, the horizontal blades 19, and the vertical blades 20 to vibrate up and down. Simultaneously, the second motor 21 drives the rotation of the stirring shaft 18, causing the horizontal blades 19 and the vertical blades 20 to vibrate up and down while rotating. This breaks the limitations of traditional single-rotation stirring and improves the material transport within the device. The more complex and varied motion trajectory allows for omnidirectional and thorough agitation, significantly improving stirring efficiency. The horizontal blades 19 and vertical blades 20 work together to promote lateral diffusion and vertical convection of materials. This synergistic effect achieves three-dimensional mixing, effectively preventing uneven local concentrations and ensuring a uniform and stable concentration process for the UV absorber. Simultaneously, vibration helps break down the thermal boundary layer within the solution, allowing heat to be transferred more quickly and evenly throughout the entire material system, effectively improving heat exchange efficiency, shortening evaporation and concentration time, and avoiding the risk of UV absorber decomposition due to localized overheating, thus ensuring product quality. Please refer to [link / reference]. Figure 2 The top of the second motor 21 is connected to a horizontal arm 22. Protrusions 23 are installed on both sides of the bottom of the horizontal arm 22, corresponding to the positions of the cam 6. The bottoms of the protrusions 23 are all arc-shaped. A triangular reinforcing rib is installed on the top of the horizontal arm 22. (See also...) Figure 5 One end of each insertion rod 11 located inside the mounting cylinder 10 is coaxially connected to a disc 12. The two ends of the first spring 13 are respectively connected to the disc 12 and the corresponding positions within the inner cavity of the mounting cylinder 10. The lower part of the assembly column 16 penetrates the interior of the sealing cover 4, and the top end of the stirring shaft 18 penetrates the corresponding position at the top of the assembly table 15. The top end of the stirring shaft 18 is coaxially connected to the bottom end of the rotor of the second motor 21. Please refer to [link / reference]. Figure 2 The mounting column 16 is fitted with a base 24. The diameter of the base 24 is larger than the diameter of the second spring 17. The lower surface of the base 24 is connected to the corresponding position of the outer side of the sealing cover 4.

[0031] This design uses a first motor 5 to drive the rotation of the cam 6, which in turn drives the horizontal arm 22, the second motor 21, and the assembly table 15 to reciprocate up and down. This, in conjunction with the insertion rod 11, the first spring 13, and the second spring 17, causes the stirring shaft 18, the horizontal blades 19, and the vertical blades 20 to vibrate up and down. Simultaneously, the second motor 21 drives the rotation of the stirring shaft 18, causing the horizontal blades 19 and the vertical blades 20 to vibrate up and down while rotating. This breaks the limitations of traditional single-rotation stirring, making the material's movement trajectory within the device more complex and varied, enabling all-around, dead-angle-free movement. The ground is agitated, which greatly improves the stirring efficiency. The horizontal blade 19 and the vertical blade 20 work together to promote the lateral diffusion of materials and promote the vertical convection of materials. The two work together to achieve three-dimensional mixing of materials, effectively avoiding local uneven concentration and ensuring that the concentration process of ultraviolet absorber is uniform and stable. At the same time, vibration and stirring help to break the thermal boundary layer inside the solution, so that heat can be transferred to the entire material system more quickly and evenly, effectively improving heat exchange efficiency, shortening the evaporation and concentration time, and avoiding the risk of ultraviolet absorber decomposition caused by local overheating, thus ensuring product quality.

[0032] 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.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultraviolet absorber reduced pressure concentration device characterized by comprising: include: A vacuum evaporator (1) is provided with a tubular condenser (2) installed on the outer side of the vacuum evaporator (1), a collection tank (3) is installed at the bottom of the tubular condenser (2), and a sealing cap (4) is provided on the top of the vacuum evaporator (1). The first motor (5) is installed on the front and rear sides of the top of the sealing cover (4). The outer end of the rotor of the first motor (5) is coaxially connected to a cam (6). The top left and right sides of the sealing cover (4) are connected to columns (7). The upper inner side of the column (7) is welded with a first hinge lug (8). The hinge shaft (9) is inserted into the first hinge ear (8) through a rotating shaft. The outer end of the hinge shaft (9) is connected to the mounting cylinder (10). The mounting cylinder (10) is filled with a rod (11). The outer end of the rod (11) is connected to the second hinge ear (14). An assembly table (15) is installed on the outside of the second hinge ear (14). An assembly column (16) is connected to the bottom end of the assembly table (15). A stirring shaft (18) is inserted inside both the assembly table (15) and the assembly column (16). Horizontal blades (19) are connected to the outer sides of the stirring shaft (18). Vertical blades (20) are installed on the outer sides of the stirring shaft (18) between the horizontal blades (19). The first spring (13) is sleeved on the outside of the insertion rod (11) and located inside the mounting cylinder (10). The second spring (17) is sleeved on the upper side of the outside of the assembly column (16). The top of the assembly table (15) is equipped with a second motor (21) via a bracket. The top of the second motor (21) is connected to a cross arm (22).

2. The ultraviolet absorbent reduced-pressure concentration apparatus according to claim 1, characterized by: The insertion rod (11) is coaxially connected to a disc (12) at one end inside the mounting cylinder (10), and the two ends of the first spring (13) are respectively connected to the disc (12) and the corresponding positions of the inner cavity of the mounting cylinder (10).

3. The ultraviolet absorbent reduced pressure concentration apparatus according to claim 1, characterized by: The lower part of the assembly column (16) penetrates the interior of the sealing cover (4), the top end of the stirring shaft (18) penetrates the corresponding position of the top of the assembly table (15), and the top end of the stirring shaft (18) is coaxially connected to the bottom end of the rotor of the second motor (21).

4. The ultraviolet absorbent reduced pressure concentration apparatus according to claim 1, characterized by: The number of horizontal blades (19) and vertical blades (20) is 4-8 sets each, and the length of the stirring shaft (18) is less than the height of the vacuum evaporator (1).

5. The ultraviolet absorbent reduced pressure concentration apparatus according to claim 1, characterized by: The assembly column (16) is fitted with a base plate (24), the diameter of which is larger than that of the second spring (17), and the lower surface of the base plate (24) is connected to the corresponding position of the outer side of the sealing cover (4).

6. The ultraviolet absorbent reduced pressure concentration apparatus according to claim 1, characterized by: The bottom sides of the cross arm (22) are equipped with protrusions (23) corresponding to the cam (6), the bottom of the protrusions (23) are all arc-shaped, and the top of the cross arm (22) is equipped with triangular reinforcing ribs.

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