Ultraviolet light absorber recrystallization equipment

Abstract

The utility model belongs to the field of recrystallization equipment, and particularly relates to ultraviolet light absorber recrystallization equipment which comprises a supporting seat, the top of the supporting seat is fixedly connected with a mixing tank; the top of the supporting seat is fixedly connected with a crystallizing tank; the top of the mixing tank is communicated with a feeding hole; the mixing tank is connected with the crystallizing tank through a second water pipe; the mixing tank is connected with the crystallizing tank through a first water pipe; an air inlet pipe is arranged in the middle of the crystallizing tank in a penetrating manner; the bottom of the supporting seat is fixedly connected with a circular pipe; the air inlet pipe is communicated with the circular pipe; a plurality of first round holes are formed in the middle of the round pipe; and through the cooperation effect of the round pipe and the first round hole, cooled inert gas flows in the round pipe after entering the round pipe and cools the solvent, the contact area of the gas and the solvent is increased, and the cooling effect of the equipment on the solvent is improved.

Description

Technical Field

[0001] The utility model relates to the field of recrystallization equipment, in particular to ultraviolet absorber recrystallization equipment. Background Art

[0002] UV absorber UV-627 is an important compound, which is mainly used to absorb ultraviolet rays and prevent them from damaging materials. UV-627 has many advantages, such as good compatibility, low volatility, good dispersibility and mobility, excellent thermal stability and high absorption efficiency.

[0003] The preparation of ultraviolet absorber UV-627 generally includes the following steps: raw material preparation, catalytic reaction, heating and dissolving, cooling and crystallization, recrystallization, and filtering and drying.

[0004] The existing ultraviolet absorber UV-627 needs to cool the mixed solvent during recrystallization. It was found during use observation that the equipment did not cool the mixed solvent sufficiently, which would cause the solubility of the absorber in the solvent to be too high and reduce the yield of crystallization.

[0005] Therefore, in view of the above problems, an ultraviolet absorber recrystallization device is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the ultraviolet absorber recrystallization equipment described in the utility model comprises a support seat; a mixing tank is fixedly connected to the top of the support seat; a crystallization tank is fixedly connected to the top of the support seat; a feed port is connected to the top of the mixing tank; the mixing tank and the crystallization tank are connected by a second water pipe; the mixing tank and the crystallization tank are connected by a first water pipe; an air inlet pipe is provided through the middle of the crystallization tank; a circular tube is fixedly connected to the bottom of the support seat; the air inlet pipe is in a communicating relationship with the circular tube; a plurality of first circular holes are opened in the middle of the circular tube; through the cooperation of the circular tube and the first circular holes, the cooled inert gas enters the circular tube and flows in the circular tube to cool the solvent, thereby increasing the contact area between the gas and the solvent and improving the cooling effect of the equipment on the solvent.

[0008] Preferably, a plurality of elastic ropes are fixedly connected to the inner wall of the circular tube; hollow balls are fixedly connected between adjacent elastic ropes; the hollow balls and the first circular hole are interference fit; through the cooperation of the hollow balls and the elastic ropes, when the pressure in the circular tube is too high, the gas will impact the hollow balls and flow from the first circular hole into the solvent to form bubbles, thereby relieving the pressure of the circular tube, and after the gas flows into the solvent through the first circular hole, bubbles will be formed and the solvent will continue to be cooled.

[0009] Preferably, a plurality of guide plates are fixedly connected to the middle of the hollow sphere; the guide plates are arc-shaped structures; by providing the guide plates, the bubbles will flow to the surface of the guide plates and diffuse along the surface of the guide plates, thereby realizing the guiding effect of the device on the bubble flow path and increasing the flow range of the bubbles.

[0010] Preferably, a plurality of first connecting rods are fixedly connected to the middle of the circular tube; a transverse plate is fixedly connected to the end of the first connecting rod; a plurality of second circular holes are opened in the middle of the transverse plate; through the cooperation of the transverse plate and the second circular holes, the bubbles will be divided into several small bubbles by the second circular holes when flowing, thereby increasing the number of bubbles in the device, further increasing the contact area between the bubbles and the solvent, and enhancing the cooling effect of the device on the solvent.

[0011] Preferably, a motor is fixedly connected to the bottom of the crystallization tank; a rotating shaft is fixedly connected to the output end of the motor; a second connecting rod is fixedly connected to the middle of the rotating shaft; a scraper is fixedly connected to the end of the second connecting rod; the end of the scraper is an arc-shaped structure; after the motor is started, the rotating shaft drives the second connecting rod to drive the scraper to rotate and clean the inner wall of the crystallization tank, thereby reducing crystals attached to the inner wall of the crystallization tank and improving the convenience of cleaning the crystallization tank. At the same time, when the scraper rotates, the bubbles on the edge of the inner wall of the crystallization tank will also move, so that more bubbles can come into contact with the solvent, further enhancing the cooling effect of the bubbles on the solvent.

[0012] Preferably, a plurality of fan blades are fixedly connected to the middle of the rotating shaft; the fan blades are of an arc-shaped structure; by arranging the fan blades, when the fan blades rotate, they blow air on the surface of the solvent and reduce the heat of the solvent, thereby assisting the equipment in cooling the solvent and enhancing the cooling effect of the equipment on the solvent.

[0013] Preferably, thermal insulation cotton is fixedly connected to the middle of the crystallization tank; the thermal insulation cotton is located on the top of the support seat; by arranging the thermal insulation cotton, the thermal insulation cotton can reduce the heat conduction between the crystallization tank and the outside world, and reduce the impact of external factors on the crystallization tank.

[0014] The utility model is beneficial in that:

[0015] 1. The ultraviolet absorber recrystallization equipment described in the utility model, through the cooperation of the circular tube and the first circular hole, the cooled inert gas enters the circular tube and flows in the circular tube to cool the solvent, thereby increasing the contact area between the gas and the solvent and improving the cooling effect of the equipment on the solvent.

[0016] 2. The ultraviolet absorber recrystallization equipment described in the utility model, through the cooperation of the hollow ball and the elastic rope, the hollow ball will block the first circular hole in a normal state, reduce the solvent entering the air inlet pipe through the first circular hole, and reduce the contamination of the solvent to the inside of the circular tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the main body of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the rotating shaft of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the round tube in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the hollow ball of the utility model.

[0022] In the figure: 1. support base; 12. mixing tank; 13. feed port; 14. first water pipe; 15. second water pipe; 16. first circular hole; 17. crystallization tank; 18. circular tube; 19. air inlet pipe; 2. hollow ball; 22. elastic rope; 3. guide plate; 4. first connecting rod; 42. second circular hole; 43. horizontal plate; 5. motor; 52. rotating shaft; 53. second connecting rod; 54. scraper; 6. fan blade; 7. thermal insulation cotton. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Specific examples are given below.

[0025] See also Figures 1 to 3As shown, a UV absorber recrystallization device described in an embodiment of the utility model comprises a support seat 1; a mixing tank 12 is fixedly connected to the top of the support seat 1; a crystallization tank 17 is fixedly connected to the top of the support seat 1; a feed port 13 is connected to the top of the mixing tank 12; the mixing tank 12 and the crystallization tank 17 are connected by a second water pipe 15; the mixing tank 12 and the crystallization tank 17 are connected by a first water pipe 14; an air inlet pipe 19 is provided through the middle of the crystallization tank 17; a circular tube 18 is fixedly connected to the bottom of the support seat 1; the air inlet pipe 19 and the circular tube 18 are in a communicating relationship; a plurality of first circular holes 16 are provided in the middle of the circular tube 18; when working, the absorbent particles and the organic solvent are poured into the feed port 13 and the device is started. After the device is started, the mixing tank 12 will heat the internal mixture. When the absorbent particles are completely dissolved in the organic solvent, the first water pipe 14 is opened to drive the liquid into the interior of the crystallization tank 17 through the first water pipe 14. Then, the cooled inert gas is injected into the air inlet pipe 19. The inert gas enters the first circular hole 16 through the air inlet pipe 19 and flows in the first circular hole 16. When the gas flows, the solvent in the crystallizer 17 is cooled, and part of the gas flows out from the first circular hole 16 and enters the solvent. After the gas enters the solvent, it turns into bubbles and flows in the solvent. When the bubbles diffuse in the solvent, the solvent is cooled. After the temperature of the solvent is reduced, crystals will precipitate inside. After cooling for a period of time, the second water pipe 15 can be opened to drive the solid-liquid mixture in the crystallizer 17 into the mixing tank 12 for reheating and mixing. Then, the first water pipe 14 is opened again to allow the crystallizer 17 to cool and crystallize the mixed solvent again. Through the cooperation of the circular tube 18 and the first circular hole 16, the cooled inert gas enters the circular tube 18, flows in the circular tube 18 and cools the solvent, thereby increasing the contact area between the gas and the solvent and improving the cooling effect of the equipment on the solvent.

[0026] See also Figure 3 and Figure 4 As shown, a plurality of elastic ropes 22 are fixedly connected to the inner wall of the circular tube 18; hollow balls 2 are fixedly connected between adjacent elastic ropes 22; the hollow balls 2 and the first circular hole 16 are interference fit; after the gas enters the circular tube 18, the pressure inside the circular tube 18 will increase, and then the gas will impact the hollow balls 2 so that the hollow balls 2 will break away from the first circular hole 16 under the action of the airflow, and then the gas will flow from the first circular hole 16 to the inside of the solvent to form bubbles, and when the pressure inside the circular tube 18 decreases, the hollow balls 2 will block the first circular hole 16 under the tension of the elastic ropes 22; through the cooperation of the hollow balls 2 and the elastic ropes 22, when the pressure inside the circular tube 18 is too high, the gas will impact the hollow balls 2 and flow from the first circular hole 16 to the solvent to form bubbles, thereby relieving the pressure on the circular tube 18, and after the gas flows into the solvent through the first circular hole 16, bubbles will be formed and the solvent will continue to be cooled.

[0027] See also Figure 4 As shown, a plurality of guide plates 3 are fixedly connected to the middle of the hollow ball 2; the guide plate 3 is an arc-shaped structure; after the gas flows out from the first circular hole 16, bubbles are formed and flow along the surface of the hollow ball 2, and then the bubbles reach the surface of the guide plate 3 and flow along the surface of the guide plate 3; by setting the guide plate 3, the bubbles flow to the surface of the guide plate 3 and diffuse along the surface of the guide plate 3, thereby realizing the guiding effect of the device on the bubble flow path and increasing the flow range of the bubbles.

[0028] See also Figure 4 As shown, a plurality of first connecting rods 4 are fixedly connected to the middle of the circular tube 18; a transverse plate 43 is fixedly connected to the end of the first connecting rod 4; a plurality of second circular holes 42 are opened in the middle of the transverse plate 43; the bubbles will reach the bottom of the transverse plate 43 when flowing, and then some bubbles will flow out from the edge of the transverse plate 43, while some bubbles will pass through the second circular holes 42 and be divided into several small bubbles by the second circular holes 42; through the cooperation of the transverse plate 43 and the second circular holes 42, the bubbles will be divided into several small bubbles by the second circular holes 42 when flowing, thereby increasing the number of bubbles in the device, further increasing the contact area between the bubbles and the solvent, and enhancing the cooling effect of the device on the solvent.

[0029] See also Figure 2 As shown, a motor 5 is fixedly connected to the bottom of the crystallization tank 17; a rotating shaft 52 is fixedly connected to the output end of the motor 5; a second connecting rod 53 is fixedly connected to the middle of the rotating shaft 52; a scraper 54 is fixedly connected to the end of the second connecting rod 53; the end of the scraper 54 is an arc-shaped structure; after the equipment is started, the motor 5 will also start, and when the motor 5 starts, the rotating shaft 52 will be driven to rotate, and when the rotating shaft 52 rotates, the second connecting rod 53 will be driven to rotate together, and when the second connecting rod 53 rotates, the scraper 54 will be driven to rotate together, and when the scraper 54 rotates, it will contact the inner wall of the crystallization tank 17 Contact occurs and the inner wall of the crystallization tank 17 is cleaned, and when the scraper 54 rotates, the bubbles inside the crystallization tank 17 will be moved away from the edge of the crystallization tank 17; after the motor 5 is started, the rotating shaft 52 drives the second connecting rod 53 to drive the scraper 54 to rotate and clean the inner wall of the crystallization tank 17, reducing the crystals attached to the inner wall of the crystallization tank 17, and improving the convenience of cleaning the crystallization tank 17. At the same time, when the scraper 54 rotates, the bubbles on the edge of the inner wall of the crystallization tank 17 will also move, so that more bubbles can come into contact with the solvent, further enhancing the cooling effect of the bubbles on the solvent.

[0030] See also Figure 2As shown, a plurality of fan blades 6 are fixedly connected to the middle of the rotating shaft 52; the fan blades 6 are of an arc-shaped structure; when the rotating shaft 52 rotates, the fan blades 6 are also driven to rotate together, and when the fan blades 6 rotate, airflow is formed and blows toward the surface of the solvent, and when the airflow reaches the surface of the solvent, the heat of the solvent surface is taken away; by setting the fan blades 6, when the fan blades 6 rotate, air is blown toward the surface of the solvent and the heat of the solvent is reduced, the auxiliary equipment cools down the solvent, and the cooling effect of the equipment on the solvent is enhanced.

[0031] See also Figure 1 and Figure 2 As shown, the middle part of the crystallization tank 17 is fixedly connected with thermal insulation cotton 7; the thermal insulation cotton 7 is located on the top of the support seat 1; when the crystallization tank 17 cools the solvent, heat conduction will occur with the outside world, and because the thermal conductivity of the thermal insulation cotton 7 is relatively low, the thermal insulation cotton 7 will reduce the influence of the outside temperature on the crystallization tank 17; by arranging the thermal insulation cotton 7, the thermal insulation cotton 7 will reduce the heat conduction between the crystallization tank 17 and the outside world, and reduce the influence of external factors on the crystallization tank 17.

[0032] Working principle: After the absorbent particles and the organic solvent are poured into the feed port 13, the equipment is started. After the equipment is started, the mixing tank 12 will heat the internal mixture. When the absorbent particles are completely dissolved in the organic solvent, the first water pipe 14 is opened to drive the liquid into the crystallization tank 17 through the first water pipe 14, and then the cooled inert gas is injected into the air inlet pipe 19. The inert gas will enter the first circular hole 16 through the air inlet pipe 19 and flow in the first circular hole 16. When the gas flows, it will cool the solvent in the crystallization tank 17, and part of the gas will flow out of the first circular hole 16 and enter the solvent. The gas enters the solvent. After the gas enters the circular tube 18, the pressure inside the circular tube 18 increases, and then the gas impacts the hollow ball 2 so that the hollow ball 2 is separated from the first circular hole 16 by the air flow, and then the gas flows from the first circular hole 16 to the inside of the solvent to form a gas. When the pressure in the circular tube 18 decreases, the hollow ball 2 will block the first circular hole 16 under the tension of the elastic rope 22; after the gas flows out of the first circular hole 16, bubbles will form and flow along the surface of the hollow ball 2, and then the bubbles will reach the surface of the guide plate 3 and flow along the surface of the guide plate 3; when the bubbles flow, they will reach the bottom of the horizontal plate 43, and then some bubbles will flow out from the edge of the horizontal plate 43, and some bubbles will pass through the second circular hole 42 and be divided into several small bubbles by the second circular hole 42; after the device is started, the motor 5 will also start, and when the motor 5 starts, it will drive the shaft 52 to rotate, and when the shaft 52 rotates, it will drive the second connecting rod 5 3 rotates together, and when the second connecting rod 53 rotates, the scraper 54 is driven to rotate together. When the scraper 54 rotates, it contacts the inner wall of the crystallizer 17 and cleans the inner wall of the crystallizer 17, and when the scraper 54 rotates, the bubbles inside the crystallizer 17 are also kept away from the edge of the crystallizer 17; when the rotating shaft 52 rotates, the fan blade 6 is also driven to rotate together, and when the fan blade 6 rotates, an airflow is formed and blown toward the surface of the solvent, and when the airflow reaches the surface of the solvent, the heat of the surface of the solvent is taken away; when the crystallizer 17 cools the solvent, heat conduction occurs with the outside, and because the thermal conductivity of the thermal insulation cotton 7 is low, the thermal insulation cotton 7 can reduce the influence of the outside temperature on the crystallizer 17.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A UV absorber recrystallization device, comprising a support base (1), characterized in that: The top of the support seat (1) is fixedly connected to a mixing tank (12); the top of the support seat (1) is fixedly connected to a crystallization tank (17); the top of the mixing tank (12) is connected to a feed port (13); the mixing tank (12) and the crystallization tank (17) are connected via a second water pipe (15); the mixing tank (12) and the crystallization tank (17) are connected via a first water pipe (14); an air inlet pipe (19) is provided through the middle of the crystallization tank (17); a circular tube (18) is fixedly connected to the bottom of the support seat (1); the air inlet pipe (19) and the circular tube (18) are in a communicating relationship; and a plurality of first circular holes (16) are provided in the middle of the circular tube (18).

2. The ultraviolet absorber recrystallization device according to claim 1, characterized in that: A plurality of elastic ropes (22) are fixedly connected to the inner wall of the circular tube (18); hollow balls (2) are fixedly connected between adjacent elastic ropes (22); and the hollow balls (2) and the first circular holes (16) are in interference fit.

3. The ultraviolet absorber recrystallization device according to claim 2, characterized in that: A plurality of guide plates (3) are fixedly connected to the middle of the hollow ball (2); the guide plates (3) are arc-shaped structures.

4. The ultraviolet absorber recrystallization device according to claim 3, characterized in that: A plurality of first connecting rods (4) are fixedly connected to the middle of the circular tube (18); a transverse plate (43) is fixedly connected to the end of the first connecting rod (4); and a plurality of second circular holes (42) are opened in the middle of the transverse plate (43).

5. The ultraviolet absorber recrystallization device according to claim 4, characterized in that: A motor (5) is fixedly connected to the bottom of the crystallization tank (17); a rotating shaft (52) is fixedly connected to the output end of the motor (5); a second connecting rod (53) is fixedly connected to the middle of the rotating shaft (52); a scraper (54) is fixedly connected to the end of the second connecting rod (53); and the end of the scraper (54) is an arc-shaped structure.

6. The ultraviolet absorber recrystallization device according to claim 5, characterized in that: A plurality of fan blades (6) are fixedly connected to the middle portion of the rotating shaft (52); the fan blades (6) are of an arc-shaped structure.

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