Self-weighing UV absorber reactor

Abstract

The invention discloses a self-weighing ultraviolet absorber reactor, which belongs to the technical field of ultraviolet absorber preparation. The invention comprises two supporting platforms and a reactor and a storage reactor respectively arranged on the top of the two supporting platforms. A pump for extracting raw materials from the storage reactor is arranged on the top of the storage reactor. A heat exchange pipe for returning liquid materials to the storage reactor is installed on the discharge port of the pump. A heat conduction component is connected to the heat exchange pipe. A gas conduit for conveying vaporized gaseous materials to the reactor is arranged on the top of the heat exchange pipe. A condenser is installed on the gas conduit. A stirring motor is installed on the top of the reactor. The output shaft of the motor passes through the reactor and extends to the inside through a sealed bearing. A stirring frame is installed in the reactor. One end of the top of the stirring frame is connected to the output shaft of the motor. The invention is simple to use, has little material residue, high material mixing efficiency, high working efficiency and strong application value.

Description

Technical Field

[0001] The invention relates to the technical field of ultraviolet absorber preparation, in particular to a self-weighing ultraviolet absorber reaction kettle. Background Art

[0002] Ultraviolet light absorber is a kind of light stabilizer, which can absorb the ultraviolet light in sunlight and fluorescent light sources without changing itself. Since sunlight contains a large amount of ultraviolet light that is harmful to colored objects, with a wavelength of about 290 to 460 nanometers, these harmful ultraviolet lights will decompose and fade the color molecules through chemical oxidation-reduction reactions. There are both physical and chemical methods to prevent harmful ultraviolet light from damaging the color. The chemical method is to use ultraviolet light absorbers to effectively prevent or weaken the damage to the color of the protected objects. Ultraviolet light absorbers are mainly made in reactors.

[0003] A Chinese patent with announcement number CN220386540U discloses a pressurized reactor for ultraviolet absorber production, comprising a reactor and a sealing top plate threadedly connected to the upper surface of the reactor, wherein the upper surface of the sealing top plate is fixedly connected to a fixing box. The reactor, the sealing top plate, the fixing box, the electric push rod, the rotating rod, the locking rod, the fixing sleeve, the locking hole, the cross plate, the adjusting screw hole, the adjusting screw, the scraper, the locking assembly, and the driving assembly are used in coordination, so that the position of the scraper can be adjusted quickly, and the installation in reactors of different sizes can be facilitated. The self-locking function of the thread can be used to avoid the scraper from moving when the scraper scrapes the ultraviolet absorber with a large adhesion force to the inner wall of the reactor. The rotation force and the thread locking force drive the scraper to scrape the ultraviolet absorber adhered in the reactor, so as to avoid the ultraviolet absorber from adhering to the inner wall of the reactor for a long time, thereby affecting the reaction effect of the reactor on the ultraviolet absorber.

[0004] After the preparation of the ultraviolet absorber in the reactor is completed, it is necessary to discharge the material. Because the reactor is sealed, the residual situation of the product inside after discharging is unclear, and multiple batches of ultraviolet absorbers remain in the reactor, which will cause mixed pollution of the product. In order to reduce the residue, in most cases, we can only wait slowly for the material to slowly flow out from the inner wall of the reactor, which is time-consuming and laborious. The above-mentioned disclosed technical solution adopts a scraper method to scrape the material in the reactor, but it only simply scrapes the material through the scraper structure, and does not reflect the further efficient processing of the material and the monitoring effect of the material.

[0005] In view of this, this application is filed. Summary of the invention

[0006] To this end, the present invention provides a self-weighing ultraviolet absorber reaction kettle to solve the above-mentioned problems.

[0007] The present invention provides the following technical solution: a self-weighing ultraviolet absorber reactor, comprising two supporting platforms and a reactor and a storage reactor respectively placed on the top of the two supporting platforms, a weighing device is provided at the bottom of the inner cavity of the reactor and the storage reactor, and the display screen of the weighing device is placed on the supporting platform 4, a pumping pump for extracting raw materials from the storage reactor is provided on the top of the storage reactor, a heat exchange pipe for returning liquid materials to the storage reactor is installed on the discharge port of the pumping pump, a heat conduction component is connected to the heat exchange pipe, a gas conduit for transporting vaporized gaseous materials to the reactor is provided on the top of the heat exchange pipe, a condenser is installed on the gas conduit, and the ultraviolet absorber ( UV-1) The raw materials are placed in the storage kettle, and the raw materials are extracted into the heat exchange tube by the extraction pump. The heat transfer oil is sent out through the heat transfer component to heat the materials in the heat exchange tube. The heated raw materials return to the storage kettle through the heat transfer tube, and the raw materials vaporized by the heat transfer oil in the heat exchange tube enter the condenser to condense into products and then enter the reactor. There are weighing devices at the bottom of the inner cavity of the reactor and the storage kettle. The weighing devices at the bottom of the reactor and the storage kettle display the weight of the products entering the reactor. When the reactor is taken out of the kettle, it is confirmed whether there is any residual product in the reactor according to the weight of the product taken out of the kettle, so as to clearly understand the residual situation of the product and prevent the mixing and contamination of multiple batches of ultraviolet absorbers.

[0008] A stirring motor is installed on the top of the reactor, and the output shaft of the motor extends through the reactor to the interior through a sealed bearing. A stirring frame is installed in the reactor, and one end of the top of the stirring frame is connected to the output shaft of the motor. A number of counter-type stirring and cleaning components are arranged in a uniform circular array on the stirring frame. The stirring motor serves as a stirring drive source, which can control the rotation of the stirring frame at the bottom, and further drive the counter-type stirring and cleaning components to rotate. The counter-type stirring and cleaning components can play a basic stirring function when rotating, and cooperate with the working mode of timing opening and closing of the stirring motor. When the stirring motor stops suddenly, the counter-type stirring and cleaning components can make the materials moving in the reactor offset with the crushing teeth in the counter-type stirring and cleaning components. On the one hand, the materials are mixed more fully, and on the other hand, it can also be used for the rapid crushing of some solid particles, which is convenient for faster fusion between materials and improved reaction efficiency. At the same time, the materials remaining on the inner wall of the reactor can be quickly scraped off to reduce residue.

[0009] As a preferred solution of the present invention, the heat transfer component includes a heat transfer oil storage tank for storing heat transfer oil, a pump body installed on the top of the heat transfer oil storage tank and a heat transfer tube sleeved on the heat exchange tube, the heat transfer tube is a hollow cylinder, and the heat transfer oil storage tank has a built-in temperature control device.

[0010] As a preferred solution of the present invention, the suction port of the pump body is connected to the inner cavity of the heat transfer oil storage tank, and is used for sucking the heat transfer oil and then transporting it to the hollow cavity of the heat transfer cylinder through the discharge pipe. A return pipe is provided on the top of the heat transfer cylinder, and is used for transporting the heat transfer oil after heat exchange back to the heat transfer oil storage tank. In actual use, the heat transfer oil in the heat transfer oil storage tank is sucked in by opening the pump body, and then transported to the hollow cavity of the heat transfer cylinder through the upper discharge pipe. The heat transfer cylinder is connected to the heat exchange tube, so that the heat transfer oil can heat the ultraviolet absorber material in the heat exchange tube. The heat transfer oil after heat exchange is returned to the heat transfer oil storage tank through the return pipe for reheating, and circulates into the heat transfer cylinder after heating for continuous and efficient heating.

[0011] As a preferred solution of the present invention, the stirring frame consists of a stirring screw and two circular brackets respectively arranged at the upper and lower ends of the stirring screw. The bottom circular bracket is installed at the bottom of the reactor through an axle seat, and the top circular bracket is fixedly connected to the output shaft of the stirring motor to form a basic frame structure. The setting of the stirring screw can disperse and throw out the material gathered in the middle, prevent the material from gathering in the middle, and maintain the stirring effect.

[0012] As a preferred solution of the present invention, the counter-type stirring and cleaning component is arranged between the upper and lower circular brackets, and the counter-type stirring and cleaning component includes a rotating mounting rod, the bottom end of the rotating mounting rod is rotatably arranged on the top of the circular bracket located below, and the top of the rotating mounting rod is fixed to the circular bracket located above by a detachable buckle. The various counter-type stirring and cleaning components can be used together to perform basic stirring on the materials in the reactor. At the same time, it is a movable structure. When in use, it is fixed by the detachable buckle. The detachable buckle can also be replaced by a screw when actually used to fix the counter-type stirring and cleaning component.

[0013] As a preferred solution of the present invention, a plurality of crushing teeth and material gathering sheets with filter holes are respectively arranged on two symmetrical sides of the rotating mounting rod, and the crushing teeth are evenly arranged along the longitudinal direction of the rotating mounting rod. The opening direction of the material gathering sheet is consistent with the rotation direction of the stirring motor. After starting, large particles of solid materials can be gathered inside through the filter holes. When the stirring motor stops suddenly, the large particles of solid materials collide with the crushing teeth of another counter-attacking stirring and cleaning component under the action of eddy current and inertia.

[0014] As a preferred solution of the present invention, a plurality of elastic telescopic rods are fixedly arranged on the side of the rotating mounting rod facing the stirring screw, a fixing plate is fixed on the telescopic end of the elastic telescopic rod, a scraping strip is arranged on the fixing plate, and the scraping strip can be adjusted to the side facing the inner wall of the reactor as the rotating mounting rod rotates, and is used to scrape the material on the inner wall of the reactor after the stirring motor is turned on.

[0015] As a preferred solution of the present invention, the tops of the reactor, storage kettle and thermal oil storage tank are all provided with injection ports, and the bottoms of the reactor, storage kettle and thermal oil storage tank are all provided with material discharge pipes to facilitate the entry and exit of materials.

[0016] As a preferred solution of the present invention, an openable sealed door is provided on one side of the reactor to facilitate maintenance and adjustment of internal components.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The bottom of the inner cavity of the reaction kettle and the storage kettle of the present invention are both equipped with weighing devices, so that the weight of the raw materials during the preparation of the ultraviolet absorber can be clearly displayed, which facilitates a more accurate understanding of the whereabouts of the materials, thereby avoiding the accumulation of raw materials in the reaction kettle and preventing the mixing and contamination of multiple batches of ultraviolet absorbers.

[0019] 2. The internal stirring structure of the reactor of the present invention is a counter-type stirring and cleaning component. When in use, the counter-type stirring and cleaning component can not only improve the stirring efficiency and the mixing efficiency of the solid materials, but also can quickly scrape off the residual materials on the inner wall of the reactor, reduce the residue, improve the work efficiency, and has a high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the present invention from the left side viewing angle;

[0023] Figure 3 It is a schematic diagram of the structure of the heat conduction component in the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the reactor of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the stirring frame in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the counter-attacking stirring and cleaning assembly of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the counter-attacking stirring and cleaning component of the present invention from another perspective.

[0028] Legend:

[0029] 1. Reactor; 2. Storage kettle; 3. Heat transfer component; 301. Thermal oil storage tank; 302. Pump body; 303. Discharge pipe; 304. Heat transfer cylinder; 305. Return pipe; 4. Support platform; 5. Stirring motor; 6. Stirring frame; 601. Round bracket; 602. Shaft seat; 603. Stirring screw; 604. Removable buckle; 7. Counter-attack stirring and cleaning component; 701. Rotating mounting rod; 702. Crushing teeth; 703. Material gathering plate; 704. Elastic telescopic rod; 705. Fixed plate; 706. Scraping strip; 8. Injection port; 9. Sealing door; 10. Extraction pump; 11. Heat exchange tube; 12. Gas duct; 13. Condenser. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Specific examples are given below.

[0032] like Figure 1-Figure 7 As shown, the self-weighing ultraviolet absorber reactor 1 comprises two supporting platforms 4 and a reactor 1 and a storage reactor 2 respectively placed on the top of the two supporting platforms 4, the bottom of the inner cavity of the reactor 1 and the storage reactor 2 are both provided with a weighing device, the display screen of the weighing device is placed on the supporting platform 4, a pumping pump 10 for extracting the raw materials inside the storage reactor 2 is provided on the top of the storage reactor 2, a heat exchange tube 11 for returning the liquid material to the storage reactor 2 is installed on the discharge port of the pumping pump 10, a heat conduction component 3 is connected to the heat exchange tube 11, a gas conduit 12 for transporting the vaporized gaseous material to the reactor 1 is provided on the top of the heat exchange tube 11, and a condenser 13 is installed on the gas conduit 12;

[0033] In actual use, the raw material of ultraviolet absorber UV-1 is placed in the storage kettle 2, and the raw material is extracted into the heat exchange tube 11 by the extraction pump 10, and the heat transfer oil is sent out through the heat transfer component 3 to heat the material in the heat exchange tube 11 through the heat transfer tube 11, and the heated raw material returns to the storage kettle 2 through the heat transfer tube 11, and the raw material in the heat exchange tube 11 heated and vaporized by the heat transfer oil enters the condenser 13 to condense into a product and then enters the reactor 1. The bottom of the inner cavity of the reactor 1 and the storage kettle 2 are both provided with a weighing device, and the weight of the product entering the reactor 1 is displayed by the weighing device inside the reactor 1. When the reactor is taken out, it is confirmed whether there is any product residue in the reactor 1 according to the weight of the product taken out of the reactor, so as to clearly understand the residual situation of the product and prevent the mixing and contamination of multiple batches of ultraviolet absorbers.

[0034] A stirring motor 5 is installed on the top of the reactor 1. The output shaft of the motor passes through the reactor 1 and extends to the inside through a sealed bearing. A stirring frame 6 is installed in the reactor 1. One end of the top of the stirring frame 6 is connected to the output shaft of the motor. A number of counter-type stirring and cleaning components 7 are arranged in a uniform circular array on the stirring frame 6. The stirring motor 5 serves as a stirring drive source and can control the rotation of the stirring frame 6 at the bottom, thereby further driving the counter-type stirring and cleaning components 7 to rotate. The counter-type stirring and cleaning components 7 can play a basic stirring function when rotating, and at the same time cooperate with the working mode of the stirring motor 5 to start and close at a time. When the stirring motor 5 stops suddenly, the counter-type stirring and cleaning components 7 can make the materials moving in the reactor 1 counter-act with the crushing teeth 702 in the counter-type stirring and cleaning components 7. On the one hand, the materials are mixed more fully, and on the other hand, it can also be used for the rapid crushing of some solid particles, which is convenient for faster fusion between materials and the reaction efficiency is improved. At the same time, the materials remaining on the inner wall of the reactor 1 can be quickly scraped off to reduce residue.

[0035] Compared with the existing reactor 1 for preparing ultraviolet absorbers, the present invention is provided with weighing devices at the bottom of the inner wall of the reactor 1 and the storage reactor 2, so that the weight of the raw materials during the preparation of the ultraviolet absorber can be clearly displayed, which is convenient for more accurate understanding of the whereabouts of the materials, thereby avoiding the accumulation and residue of the raw materials in the reactor 1, and preventing the mixing and pollution of multiple batches of ultraviolet absorbers. At the same time, the counter-attack stirring and cleaning component 7 inside the reactor 1 can not only improve the stirring efficiency and the mixing efficiency of the solid materials, but also can quickly scrape the residual materials on the inner wall of the reactor 1, reduce the residue, improve the work efficiency, and have a high application value.

[0036] The tops of the reactor 1, the storage tank 2 and the thermal oil storage tank 301 are all provided with injection ports 8, and the bottoms of the reactor 1, the storage tank 2 and the thermal oil storage tank 301 are all provided with material discharge pipes to facilitate the entry and exit of materials. An openable sealing door 9 is provided on one side of the reactor 1 to facilitate maintenance and adjustment of internal parts.

[0037] like Figure 3As shown, the heat-conducting component 3 includes a heat-conducting oil storage tank 301 for storing heat-conducting oil, a pump body 302 installed on the top of the heat-conducting oil storage tank 301, and a heat-conducting cylinder 304 sleeved on the heat exchange tube 11. The heat-conducting cylinder 304 is a hollow cylinder. The heat-conducting oil storage tank 301 has a built-in temperature control device. The suction port of the pump body 302 is connected to the inner cavity of the heat-conducting oil storage tank 301, and is used to suck the heat-conducting oil and then transport it to the hollow cavity of the heat-conducting cylinder 304 through the discharge pipe 303. The top of the heat-conducting cylinder 304 is provided with a return pipe 305, which is used to return the heat-conducting oil after heat exchange. The oil is transported back to the heat transfer oil storage tank 301. In actual use, the heat transfer oil in the heat transfer oil storage tank 301 is sucked in by opening the pump body 302, and then transported to the hollow cavity of the heat transfer cylinder 304 through the discharge pipe 303 above. The heat transfer cylinder 304 is connected to the heat exchange tube 11, so that the heat transfer oil can heat the ultraviolet absorber material in the heat exchange tube 11. The heat transfer oil after heat exchange is returned to the heat transfer oil storage tank 301 through the return pipe 305 for reheating, and after heating, it circulates into the heat transfer cylinder 304 for continuous and efficient heating.

[0038] like Figure 5 As shown, the stirring frame 6 is composed of a stirring screw 603 and two circular brackets 601 respectively arranged at the upper and lower ends of the stirring screw 603. The bottom circular bracket 601 is installed at the bottom of the reactor 1 through the shaft seat 602, and the top circular bracket 601 is fixedly connected to the output shaft of the stirring motor 5 to form a basic frame structure. The setting of the stirring screw 603 can disperse and throw out the materials gathered in the middle, prevent the materials from gathering in the middle, and maintain the stirring effect.

[0039] like Figure 6 and Figure 7 As shown, the counter-type stirring and cleaning component 7 is arranged between the upper and lower circular brackets 601, and the counter-type stirring and cleaning component 7 includes a rotating mounting rod 701, the bottom end of the rotating mounting rod 701 is rotatably arranged on the top of the circular bracket 601 located below, and the top of the rotating mounting rod 701 is fixed to the circular bracket 601 located above by a detachable buckle 604. The various counter-type stirring and cleaning components 7 are used together to perform basic stirring on the materials in the reactor 1. At the same time, it is a movable structure. When in use, it is fixed by the detachable buckle 604. The detachable buckle 604 can also be replaced by a screw when actually used, which is used to fix the counter-type stirring and cleaning component 7.

[0040] A plurality of crushing teeth 702 and a material gathering piece 703 with filter holes are symmetrically arranged on both sides of the rotating mounting rod 701. The crushing teeth 702 are evenly arranged along the longitudinal direction of the rotating mounting rod 701. The opening direction of the material gathering piece 703 is consistent with the rotation direction of the stirring motor 5. After starting, large particles of solid materials can be gathered inside through the filter holes. When the stirring motor 5 stops suddenly, the large particles of solid materials collide with the crushing teeth 702 of another counter-type stirring and cleaning component 7 under the action of eddy current and inertia. The setting of this working mode makes the reactor 1 not only applicable to the preparation reaction of ultraviolet absorbers, but also has a good treatment method for some solid materials, preventing the agglomerated particulate materials from dispersing slowly in the reactor 1. The structural design of the counter-type stirring and cleaning component 7 can greatly improve the mixing efficiency between materials, thereby improving the preparation efficiency of ultraviolet absorbers.

[0041] A plurality of elastic telescopic rods 704 are fixedly arranged on one side of the rotating mounting rod 701 facing the stirring screw 603, and a fixing plate 705 is fixed on the telescopic end of the elastic telescopic rod 704. A scraping strip 706 is arranged on the fixing plate 705. The scraping strip 706 can be adjusted to the side facing the inner wall of the reactor 1 as the rotating mounting rod 701 rotates, and is used to scrape the material on the inner wall of the reactor 1 after the stirring motor 5 is turned on. Specifically, in actual application, after the material in the reactor 1 is discharged, the sealing door 9 is opened, and then the detachable buckle 604 is actually only needed to increase the automatic The detachable buckle 604 can be further replaced by a micro waterproof motor, and the power supply can be replaced or charged regularly. The direction of the rotating mounting rod 701 can be adjusted by the micro waterproof motor. No manual control is required to take it out, and the direction of the rotating mounting rod 701 is turned so that the scraping bar 706 faces one side of the inner wall of the reactor 1. Then the rotating mounting rod 701 is fixed again, and the sealing door 9 is closed. At this time, starting the stirring motor 5 can make the scraping bar 706 scrape the inside of the reactor 1, so that the residual material on the inner wall of the reactor 1 can be quickly cleaned.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Self-weighing UV absorber reactor, characterized by: It comprises two supporting platforms (4) and a reaction kettle (1) and a storage kettle (2) respectively placed on the top of the two supporting platforms (4), wherein the bottom of the inner cavity of the reaction kettle (1) and the storage kettle (2) are both provided with a weighing device, and the display screen of the weighing device is placed on the supporting platform (4); A stirring motor (5) is installed on the top of the reactor (1), the output shaft of the motor passes through the reactor (1) and extends to the inside via a sealed bearing, a stirring frame (6) is installed in the reactor (1), one end of the top of the stirring frame (6) is connected to the output shaft of the motor, and a plurality of counter-attacking stirring and cleaning components (7) are arranged in a uniform circular array on the stirring frame (6); The stirring frame (6) is composed of a stirring screw (603) and two circular brackets (601) respectively arranged at the upper and lower ends of the stirring screw (603); The counter-type stirring and cleaning assembly (7) is arranged between the upper and lower circular brackets (601), and the counter-type stirring and cleaning assembly (7) comprises a rotating mounting rod (701), the bottom end of the rotating mounting rod (701) is rotatably arranged on the top of the circular bracket (601) located below, and the top of the rotating mounting rod (701) is fixed to the circular bracket (601) located above via a detachable buckle (604); The circular bracket (601) at the bottom is installed at the bottom of the reactor (1) via a shaft seat (602), and the circular bracket (601) at the top is fixedly connected to the output shaft of the stirring motor (5); A plurality of crushing teeth (702) and a material gathering sheet (703) with filter holes are respectively arranged on two symmetrical sides of the rotating mounting rod (701), and the crushing teeth (702) are evenly arranged along the longitudinal direction of the rotating mounting rod (701). The opening direction of the material gathering sheet (703) is consistent with the rotation direction of the stirring motor (5). After starting, large particles of solid material can be gathered inside through the filter holes. When the stirring motor (5) stops suddenly, the large particles of solid material collide with the crushing teeth (702) of another counter-type stirring and cleaning component (7) under the action of eddy current and inertia.

2. The self-weighing ultraviolet absorber reactor according to claim 1, characterized in that: The top of the storage kettle (2) is provided with a pumping pump (10) for extracting raw materials from the storage kettle (2); the discharge port of the pumping pump (10) is provided with a heat exchange tube (11) for returning liquid materials to the storage kettle (2); the heat exchange tube (11) is connected with a heat conduction component (3); the top of the heat exchange tube (11) is provided with a gas conduit (12) for conveying vaporized gaseous materials to the reaction kettle (1); and the gas conduit (12) is provided with a condenser (13).

3. The self-weighing ultraviolet absorber reactor (1) according to claim 2, characterized in that: The heat transfer component (3) comprises a heat transfer oil storage tank (301) for storing heat transfer oil, a pump body (302) mounted on the top of the heat transfer oil storage tank (301), and a heat transfer cylinder (304) sleeved on the heat exchange tube (11); the heat transfer cylinder (304) is a hollow cylinder; and the heat transfer oil storage tank (301) has a built-in temperature control device.

4. The self-weighing ultraviolet absorber reactor according to claim 3, characterized in that: The suction port of the pump body (302) is in communication with the inner cavity of the heat transfer oil storage tank (301) and is used to suck in the heat transfer oil and then deliver it to the hollow cavity of the heat transfer cylinder (304) through the discharge pipe (303). A return pipe (305) is provided at the top of the heat transfer cylinder (304) and is used to deliver the heat transfer oil after heat exchange back to the heat transfer oil storage tank (301).

5. The self-weighing ultraviolet absorber reactor according to claim 1, characterized in that: A plurality of elastic telescopic rods (704) are fixedly arranged on one side of the rotating mounting rod (701) facing the stirring screw rod (603); a fixing plate (705) is fixed on the telescopic end of the elastic telescopic rod (704); a scraping strip (706) is arranged on the fixing plate (705); the scraping strip (706) can be adjusted to face the inner wall of the reaction kettle (1) as the rotating mounting rod (701) rotates, and is used to scrape the material on the inner wall of the reaction kettle (1) after the stirring motor (5) is turned on.

6. The self-weighing ultraviolet absorber reactor according to claim 4, characterized in that: The tops of the reaction kettle (1), the storage kettle (2) and the thermal oil storage tank (301) are all provided with injection ports (8), and the bottoms of the reaction kettle (1), the storage kettle (2) and the thermal oil storage tank (301) are all provided with material discharge pipes.

7. The self-weighing ultraviolet absorber reactor according to claim 1, characterized in that: An openable sealed door (9) is provided on one side of the reaction kettle (1).

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