Blending reaction kettle for preparing styrene true polymerization inhibitor

Abstract

The invention belongs to the technical field of reaction kettles, and particularly discloses a blending reaction kettle for preparing a styrene true polymerization inhibitor, which comprises a kettle body, a motor is mounted at the top of the kettle body, a feed port is formed in one side of the top of the kettle body, a discharge port is formed in the center of the bottom of the kettle body, a plug is clamped at the bottom of the discharge port, and a rotating rod is arranged in the kettle body. The top end of the rotating rod penetrates through the top end of the kettle body and is in transmission connection with an output shaft of the motor, the bottom end of the rotating rod corresponds to the discharging port, and the top face of the plug is attached to the bottom end of the rotating rod. A scraping strip is moved out of an inner groove through a moving sliding plate, the sliding plate drives an arc-shaped scraping plate to rotate through a rotating plate until the scraping strip and the arc-shaped scraping plate are matched and attached to the inner side wall of the kettle body, and a rotating stirring part comprehensively cleans the inner side wall of the kettle body through the scraping strip and the arc-shaped scraping plate; preparation raw materials are prevented from remaining on the inner side wall of the kettle body.

Description

Technical Field

[0001] The invention belongs to the technical field of reactors, and particularly relates to a mixing reactor for preparing a styrene true polymerization inhibitor. Background Art

[0002] Chemical reactors achieve the heating, evaporation, cooling and low-speed mixing functions required by the process through the structural design and parameter configuration of the container. They are widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, etc. to ensure that the materials are fully mixed and reacted.

[0003] However, when the existing chemical reactor is used, the mixed materials are discharged from the chemical reactor, and some materials will remain on the inner wall of the chemical reactor, resulting in a reduction in the dosage of the materials. Manual cleaning is required, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to invent a blending reactor for preparing a true styrene polymerization inhibitor to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a mixing reactor for preparing a true styrene polymerization inhibitor to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A blending reactor for preparing styrene true polymerization inhibitor comprises a reactor body, a motor is installed on the top of the reactor body, a feed inlet is arranged on one side of the top of the reactor body, a discharge outlet is arranged at the center of the bottom of the reactor body, and a plug is clamped at the bottom of the discharge outlet, a rotating rod is arranged inside the reactor body, the top end of the rotating rod passes through the top of the reactor body, and the top end of the rotating rod is transmission-connected to the output shaft of the motor, the bottom end of the rotating rod corresponds to the discharge outlet, and the top surface of the plug is in contact with the bottom end of the rotating rod, two opposite stirring components are fixed on the surface of the rotating rod, the rotating rod stirs the prepared raw materials inside the reactor body by the stirring components, the stirring component comprises a stirring frame, the inner side surface of the stirring frame is connected by a cross bar, the stirring frame comprises a vertical plate and an arc plate, the bottom end of the vertical plate is fixedly connected to the top end of the arc plate, the outer side surface of the stirring frame corresponds to the inner wall of the reactor body, a swivel is sleeved on the bottom end of the rotating rod, and the bottom ends of the two opposite arc plates are fixedly connected by the swivel.

[0007] Furthermore, the kettle body is correspondingly inserted into the floor surface, a plurality of mounting brackets are fixed on the circumferential outer side of the kettle body, and the bottom surface of the mounting bracket is correspondingly placed on the top surface of the floor, a plurality of screws are fixed on the top surface of the floor, the plurality of screws correspond one-to-one with the plurality of mounting brackets, the top end of the screw passes through the center of the mounting bracket, and a nut is spirally sleeved on the top end of the screw.

[0008] Furthermore, the outer side surface of the stirring frame does not contact the inner wall of the kettle body, and the two opposite stirring frames are connected to the surface of the rotating rod by a swivel ring. The stirring component also includes a slide plate, which is vertically arranged, and the bottom end of the slide plate is slidably connected to the surface of the cross bar. Insert rods that penetrate the vertical plate are fixed on both sides of the slide plate, and a spring is connected to the surface of the insert rod. The inner end of the spring is connected to the slide plate, and the outer end of the spring is connected to the inner side surface of the vertical plate. A scraper strip is fixed to the outer end of the insert rod, and a groove corresponding to the scraper strip is provided on the outer side surface of the vertical plate, and the spring is in a contracted state.

[0009] Furthermore, a through groove is provided at the center of the arc plate, an arc scraper is provided on the inner side of the through groove, a rotating plate is provided between the arc scraper and the bottom end of the slide plate, the top end of the rotating plate is hinged to the bottom end of the slide plate, the bottom end of the rotating plate is hinged to the top end of the arc scraper, an inner rod is provided at the bottom inner side of the through groove, and the bottom end of the arc scraper is sleeved on the surface of the inner rod, and a vertical convex strip is provided on the outer side of the arc scraper, and the thickness of the convex strip gradually becomes thicker from top to bottom.

[0010] Furthermore, a ring plate is provided inside the kettle body, and the ring plate is at the top of the stirring component. The ring plate is sleeved on the surface of the rotating rod, and an inner groove is provided at the center of the top surface of the ring plate. Two opposite first side plates are fixed to the top surface of the ring plate, and two opposite second side plates are provided between the two first side plates. The two first side plates and the two second side plates cooperate to surround the top of the inner groove, and a collecting chamber is formed between the two first side plates and the two second side plates, and the top of the collecting chamber corresponds to the feed port.

[0011] Furthermore, two opposite through holes are arranged on the inner side of the ring plate, a sliding rod is arranged inside the through hole, the top end of the sliding rod is connected to the center of the bottom surface of the second side plate by a connecting rod, and a sliding groove corresponding to the connecting rod is arranged on the top surface of the ring plate.

[0012] Furthermore, a movable plate is fixed at the bottom end of the slide rod, and a bottom groove corresponding to the movable plate is provided on the bottom surface of the ring plate. The inner side surface of the bottom end of the movable plate is connected to the outer side surface of the top end of the slide plate by an inner rod. The moving slide plate drives the slide rod to move synchronously by the inner rod and the movable plate, and the inner rod is made of rubber material.

[0013] Furthermore, an elastic part is provided at the center of the rotating rod, and the elastic part is located between the two slides. The inner side of the slide is fitted with the outer side of the circumference of the elastic part. An elastic part is sleeved on the surface of the rotating rod, the top end of the elastic part is connected to the bottom surface of the ring plate, and the bottom end of the elastic part is connected to the top surface of the elastic part.

[0014] Technical effects and advantages of the present invention: 1. The present invention uses a movable slide plate to move the scraper bar out of the inner tank, and the slide plate drives the arc scraper plate to rotate by using a rotating plate until the scraper bar and the arc scraper plate fit together on the inner wall of the kettle body, and the rotating stirring component uses the scraper bar and the arc scraper plate to fully clean the inner wall of the kettle body to avoid the prepared raw materials remaining on the inner wall of the kettle body.

[0015] 2. The present invention limits the prepared raw materials through the cooperation of two first side plates and two second side plates. When the ring plate rotates, the two second side plates are separated from each other. At this time, four gaps are generated between the surfaces of the collecting chamber. At this time, the prepared raw materials rotate and disperse into the inner side of the kettle body through the four rotating gaps, which is convenient for comprehensive diffusion of the prepared raw materials inside the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 1 is an overall schematic diagram of a mixing reactor for preparing a true styrene polymerization inhibitor according to an embodiment of the present invention; Figure 2 is a schematic perspective cross-sectional view of the entire kettle body according to an embodiment of the present invention; Figure 3 Schematic diagram of the inner parts of the kettle body according to an embodiment of the present invention; Figure 4 Schematic diagram of a rotating rod in an embodiment of the present invention connected to an arc frame by a cross bar; Figure 5 Schematic diagram of a curved scraper embedded in a curved plate according to an embodiment of the present invention; Figure 6 is a schematic diagram of a rotating rod penetrating a ring plate according to an embodiment of the present invention; Figure 7 Schematic diagram of the cooperation between the ring plate and the arc plate in an embodiment of the present invention; Figure 8 is a three-dimensional schematic cross-sectional view of a ring plate according to an embodiment of the present invention; In the figure: 1, kettle body; 2, motor; 3, feed inlet; 4, discharge outlet; 5, plug; 6, rotating rod; 7, cross bar; 8, vertical plate; 9, arc plate; 10, swivel; 11, floor; 12, mounting frame; 13, nut; 14, slide plate; 15, plug rod; 16, spring; 17, scraper bar; 18, arc scraper; 19, rotating plate; 20, convex strip; 21, ring plate; 22, inner groove; 23, first side plate; 24, second side plate; 25, through hole; 26, slide rod; 27, slide groove; 28, movable plate; 29, elastic part; 30, elastic member. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] The present invention provides a mixing reactor for preparing a true styrene polymerization inhibitor, such as Figures 1 to 4 As shown, it includes a kettle body 1, a motor 2 is installed on the top of the kettle body 1, a feeding port 3 is arranged on one side of the top of the kettle body 1, a discharge port 4 is arranged at the center of the bottom of the kettle body 1, and a plug 5 is clamped at the bottom of the discharge port 4, a rotating rod 6 is arranged inside the kettle body 1, the top of the rotating rod 6 passes through the top of the kettle body 1, and the top of the rotating rod 6 is transmission-connected to the output shaft of the motor 2, the bottom end of the rotating rod 6 corresponds to the discharge port 4, and the top surface of the plug 5 is in contact with the bottom end of the rotating rod 6, two opposite stirring components are fixed on the surface of the rotating rod 6, the rotating rod 6 stirs the prepared raw materials inside the kettle body 1 by the stirring components, the stirring component includes a stirring frame, the inner side surface of the stirring frame is connected by a cross bar 7, the stirring frame includes a vertical plate 8 and an arc plate 9, and the bottom end of the vertical plate 8 is fixedly connected to the top of the arc plate 9, the outer side surface of the stirring frame corresponds to the inner wall of the kettle body 1, the bottom end of the rotating rod 6 is sleeved with a swivel 10, and the bottom ends of the two opposite arc plates 9 are fixedly connected by the swivel 10. Open the feed port 3, and pass the prepared raw materials into the inner side of the kettle body 1 through the feed port 3, start the motor 2, and the output end of the motor 2 drives the stirring component to rotate inside the kettle body 1 using the rotating rod 6, that is, the rotating rotating rod 6 drives the stirring frame to stir the prepared raw materials inside the kettle body 1 using the cross bar 7, until the prepared raw materials are stirred, remove the plug 5 from the bottom of the discharge port 4, and the prepared raw materials stirred inside the kettle body 1 are discharged from the discharge port 4 to obtain a true styrene inhibitor.

[0019] exist Figure 1 and Figure 2 In the embodiment, the kettle body 1 is correspondingly inserted into the surface of the floor 11, and a plurality of mounting frames 12 are fixed to the outer circumferential side of the kettle body 1, and the bottom surface of the mounting frame 12 is correspondingly placed on the top surface of the floor 11, and a plurality of screws are fixed to the top surface of the floor 11, and the plurality of screws correspond to the plurality of mounting frames 12 one by one, and the top of the screw corresponds to passing through the center of the mounting frame 12, and the top of the screw is spirally sleeved with a nut 13. The kettle body 1 is vertically inserted into the surface of the floor 11, and the bottom surfaces of the plurality of mounting frames 12 on the surface of the kettle body 1 correspond to being attached to the top surface of the floor 11. At this time, the screw on the top surface of the floor 11 corresponds to passing through the center of the mounting frame 12, and the nut 13 is spirally sleeved on the top of the screw. The spiral cooperation between the nut 13 and the screw makes the mounting frame 12 and the kettle body 1 fixedly installed on the floor 11.

[0020] exist Figures 2 to 4In the embodiment, the outer side of the stirring frame does not contact the inner wall of the kettle body 1, and the two opposite stirring frames are connected to the surface of the rotating rod 6 by means of a rotating ring 10. The stirring component also includes a slide plate 14, which is vertically arranged, and the bottom end of the slide plate 14 is slidably connected to the surface of the cross bar 7. Both sides of the slide plate 14 are fixed with plug rods 15 that penetrate the vertical plate 8. The surface of the plug rod 15 is connected with a spring 16, the inner end of the spring 16 is connected to the slide plate 14, and the outer end of the spring 16 is connected to the inner side of the vertical plate 8. A scraper bar 17 is fixed to the outer end of the plug rod 15, and a groove corresponding to the scraper bar 17 is provided on the outer side of the vertical plate 8, and the spring 16 is in a contracted state. When the rotating rotating rod 6 uses the cross bar 7 to rotate the stirring frame, the rotating cross bar 7 drives the slide plate 14 to rotate synchronously. As the rotation speed of the rotating rod 6 increases, the centrifugal force generated by the rotation of the rotating rod 6 causes the slide plate 14 to slide on the surface of the cross bar 7, and the moving slide plate 14 gradually approaches the vertical plate 8 of the stirring frame. The moving slide plate 14 cooperates with the vertical plate 8 to squeeze the spring 16 on the surface of the insertion rod 15, and the moving slide plate 14 uses the insertion rod 15 to drive the scraper 17 to move out of the groove until the outer side surface of the scraper 17 is in contact with the inner wall of the kettle body 1. The rotating stirring frame uses the scraper 17 to scrape the residue on the inner wall of the kettle body 1 to prevent the prepared raw materials from being adsorbed on the inner wall of the kettle body 1.

[0021] The elastic force of the spring 16 prevents the slide plate 14 from directly impacting the inner wall of the vertical plate 8, and also prevents the scraper 17 from directly impacting the inner wall of the kettle body 1, thereby preventing the stirring frame and the kettle body 1 from being damaged by impact.

[0022] exist Figures 3 to 5 A through groove is provided at the center of the arc plate 9, an arc scraper 18 is provided on the inner side of the through groove, a rotating plate 19 is provided between the arc scraper 18 and the bottom end of the slide plate 14, the top end of the rotating plate 19 is hinged to the bottom end of the slide plate 14, the bottom end of the rotating plate 19 is hinged to the top end of the arc scraper 18, an inner rod is provided at the bottom of the inner side of the through groove, and the bottom end of the arc scraper 18 is sleeved on the surface of the inner rod, and a vertical convex strip 20 is provided on the outer side of the arc scraper 18, and the thickness of the convex strip 20 gradually becomes thicker from top to bottom. When the slide plate 14 approaches the vertical plate 8, the bottom end of the slide plate 14 drives the top end of the rotating plate 19 to move. Since the bottom end of the arc scraper 18 is limited inside the through groove by the inner rod, the rotating plate 19 rotates under the drive of the slide plate 14. The bottom end of the rotating plate 19 pushes the arc scraper 18 to rotate. The arc scraper 18 rotates with the inner rod as the center of the circle. The top of the arc scraper 18 gradually moves out from the inside of the through groove. The moving arc scraper 18 drives the convex strip 20 to approach the inner wall of the kettle body 1 until the convex strip 20 fits against the inner wall of the kettle body 1. The scraper strip 17 cooperates with the convex strip 20 to fully clean the inner wall of the kettle body 1.

[0023] exist Figure 2 , Figure 3 and Figure 6In the embodiment, a ring plate 21 is provided inside the kettle body 1, and the ring plate 21 is located at the top of the stirring component. The ring plate 21 is sleeved on the surface of the rotating rod 6, and an inner groove 22 is provided at the center of the top surface of the ring plate 21. Two opposite first side plates 23 are fixed on the top surface of the ring plate 21, and two opposite second side plates 24 are provided between the two first side plates 23. The two first side plates 23 and the two second side plates 24 cooperate to surround the top of the inner groove 22, and a collecting chamber is formed between the two first side plates 23 and the two second side plates 24, and the top of the collecting chamber corresponds to the feed port 3. The prepared raw materials are poured into the collecting chamber at the top of the ring plate 21 through the feed port 3, and the two first side plates 23 and the two second side plates 24 cooperate to limit the prepared raw materials to prevent the prepared raw materials from being directly accumulated inside the kettle body 1.

[0024] exist Figures 6 to 8 In the embodiment, two opposite through holes 25 are arranged on the inner side of the ring plate 21, and a slide bar 26 is arranged inside the through hole 25. The top of the slide bar 26 is connected to the center of the bottom surface of the second side plate 24 by a connecting rod, and a slide groove 27 corresponding to the connecting rod is arranged on the top surface of the ring plate 21. A movable plate 28 is fixed to the bottom end of the slide bar 26, and a bottom groove corresponding to the movable plate 28 is arranged on the bottom surface of the ring plate 21. The inner side surface of the bottom end of the movable plate 28 is connected to the outer side surface of the top end of the slide plate 14 by an inner rod. The moving slide plate 14 drives the slide bar 26 to move synchronously by using the inner rod and the movable plate 28, wherein the inner rod is made of rubber material. When the slide plate 14 is close to the vertical plate 8 due to the centrifugal force of the rotating rod 6, the slide plate 14 drives the sliding rod 26 to move through the inner rod and the movable plate 28. The movable plate 28 moves inside the bottom groove, and the sliding rod 26 moves inside the through hole 25. The moving sliding rod 26 drives the second side plate 24 to move using the connecting rod. At this time, the two opposite second side plates 24 move away from each other, and the second side plate 24 is separated from the first side plate 23. Since the two first side plates 23 and the two second side plates 24 are interlaced around the top of the ring plate 21, when the two second side plates 24 are separated from each other, four gaps are generated between the surfaces of the collecting chamber. At this time, the prepared raw materials rotate and disperse into the inner side of the kettle body 1 through the four rotating gaps, which is convenient for the comprehensive diffusion of the prepared raw materials inside the kettle body 1. At this time, the rotating stirring component can quickly and comprehensively stir the prepared raw materials.

[0025] exist Figures 2 to 8In the embodiment, an elastic part 29 is arranged at the center of the rotating rod 6, and the elastic part 29 is located between the two slide plates 14. The inner side of the slide plate 14 is in contact with the outer side of the circumference of the elastic part 29. An elastic member 30 is sleeved on the surface of the rotating rod 6, and the top of the elastic member 30 is connected to the bottom surface of the ring plate 21, and the bottom of the elastic member 30 is connected to the top surface of the elastic member 29. After the prepared raw materials are poured into the collecting chamber, the weight of the prepared raw materials causes the ring plate 21 to move down on the surface of the rotating rod 6, and the downwardly moved ring plate 21 cooperates with the elastic part 29 to squeeze the elastic member 30 on the surface of the rotating rod 6, and the downwardly moved ring plate 21 drives the movable plate 28 to move down synchronously by using the sliding rod 26, and the downwardly moved movable plate 28 pulls the inner rod, and the elastic force of the elastic member 30 and the inner rod is used to prevent the bottom surface of the ring plate 21 from directly impacting the top of the vertical plate 8.

[0026] Working principle of the present invention: Reference Figures 1 to 8 As shown, the feed port 3 is opened, and the prepared raw materials are poured into the collecting chamber at the top of the ring plate 21 through the feed port 3. The two first side plates 23 and the two second side plates 24 cooperate to limit the prepared raw materials to prevent the prepared raw materials from being directly accumulated inside the kettle body 1. After the prepared raw materials are poured into the collecting chamber, the weight of the prepared raw materials causes the ring plate 21 to move down on the surface of the rotating rod 6, and the downwardly moved ring plate 21 cooperates with the elastic part 29 to squeeze the elastic member 30 on the surface of the rotating rod 6, and the downwardly moved ring plate 21 uses the sliding rod 26 to drive the movable plate 28 to move down synchronously, and the downwardly moved movable plate 28 pulls the inner rod, and uses the elastic force of the elastic member 30 and the inner rod to prevent the bottom surface of the ring plate 21 from directly impacting the top of the vertical plate 8.

[0027] The motor 2 is started, and the output end of the motor 2 drives the stirring component to rotate inside the kettle body 1 by using the rotating rod 6. When the rotating rotating rod 6 uses the cross bar 7 to rotate the stirring frame, the rotating cross bar 7 drives the slide plate 14 to rotate synchronously. As the rotating speed of the rotating rod 6 increases, the centrifugal force generated by the rotation of the rotating rod 6 causes the slide plate 14 to slide on the surface of the cross bar 7. The moving slide plate 14 gradually approaches the vertical plate 8 of the stirring frame. The slide plate 14 drives the slide bar 26 to move through the inner rod and the movable plate 28. The movable plate 28 moves inside the bottom groove, and the slide bar 26 moves inside the through hole 25. , the moving slide bar 26 drives the second side plate 24 to move by the connecting rod, and the two second side plates 24 are separated from each other. Since the two first side plates 23 and the two second side plates 24 are interlaced around the top of the ring plate 21, when the two second side plates 24 are separated from each other, four gaps are generated between the surfaces of the collecting chamber. At this time, the prepared raw materials rotate and disperse into the inner side of the kettle body 1 through the four rotating gaps, which is convenient for the comprehensive diffusion of the prepared raw materials inside the kettle body 1. The rotating rotating rod 6 drives the stirring frame to stir the prepared raw materials inside the kettle body 1 by the cross bar 7 until the stirring of the prepared raw materials is completed, and then the plug 5 is removed from the bottom of the discharge port 4, and the prepared raw materials stirred inside the kettle body 1 are discharged from the discharge port 4 to obtain the styrene true polymerization inhibitor.

[0028] The movable slide plate 14 cooperates with the vertical plate 8 to squeeze the spring 16 on the surface of the insertion rod 15, and the movable slide plate 14 uses the insertion rod 15 to drive the scraper 17 to move out from the inside of the groove until the outer side of the scraper 17 is in contact with the inner wall of the kettle body 1. The rotating stirring frame uses the scraper 17 to scrape the residue on the inner wall of the kettle body 1 to prevent the prepared raw materials from being adsorbed on the inner wall of the kettle body 1.

[0029] In addition, when the slide plate 14 approaches the vertical plate 8, the bottom end of the slide plate 14 drives the top end of the rotating plate 19 to move. Since the bottom end of the arc scraper 18 is limited inside the through groove by the inner rod, the rotating plate 19 rotates under the drive of the slide plate 14. The bottom end of the rotating plate 19 pushes the arc scraper 18 to rotate. The arc scraper 18 rotates with the inner rod as the center of the circle. The top of the arc scraper 18 gradually moves out from the inside of the through groove. The moving arc scraper 18 drives the convex strip 20 to approach the inner wall of the kettle body 1 until the convex strip 20 corresponds to the inner wall of the kettle body 1, and the scraper strip 17 cooperates with the convex strip 20 to fully clean the inner wall of the kettle body 1.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A blending reactor for preparing a true styrene polymerization inhibitor, comprising a reactor body (1), a motor (2) being mounted on the top of the reactor body (1), a feed inlet (3) being arranged on one side of the top of the reactor body (1), a discharge outlet (4) being arranged at the center of the bottom of the reactor body (1), and a plug (5) being clamped at the bottom of the discharge outlet (4), characterized in that: A rotating rod (6) is arranged inside the kettle body (1), the top end of the rotating rod (6) passes through the top end of the kettle body (1), and the top end of the rotating rod (6) is transmission-connected to the output shaft of the motor (2), the bottom end of the rotating rod (6) corresponds to the discharge port (4), and the top surface of the plug (5) is in contact with the bottom end of the rotating rod (6), two opposing stirring components are fixed on the surface of the rotating rod (6), and the rotating rod (6) stirs the prepared raw materials inside the kettle body (1) by means of the stirring components, the stirring components comprising a stirring frame, the inner side surface of the stirring frame is connected by means of a cross bar (7), the stirring frame comprises a vertical plate (8) and an arc plate (9), the bottom end of the vertical plate (8) is fixedly connected to the top end of the arc plate (9), the outer side surface of the stirring frame corresponds to the inner side wall of the kettle body (1), the bottom end of the rotating rod (6) is sleeved with a rotating ring (10), and the bottom ends of the two opposing arc plates (9) are fixedly connected by means of the rotating ring (10).

2. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 1, characterized in that: The kettle body (1) is correspondingly inserted into the surface of the floor (11); a plurality of mounting frames (12) are fixed to the outer circumferential side surface of the kettle body (1), and the bottom surface of the mounting frame (12) is correspondingly placed on the top surface of the floor (11); a plurality of screw rods are fixed to the top surface of the floor (11); the plurality of screw rods correspond to the plurality of mounting frames (12) one by one, the top ends of the screw rods correspondingly pass through the center of the mounting frames (12), and the top ends of the screw rods are spirally sleeved with nuts (13).

3. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 1, characterized in that: The outer side surface of the stirring frame does not contact the inner side wall of the kettle body (1), and the two opposing stirring frames are sleeved with the surface of the rotating rod (6) by means of a rotating ring (10). The stirring component also includes a slide plate (14), which is vertically arranged, and the bottom end of the slide plate (14) is slidably sleeved on the surface of the cross bar (7). Both sides of the slide plate (14) are fixed with insertion rods (15) that penetrate the vertical plate (8), and the surface of the insertion rod (15) is sleeved with a spring (16), the inner end of the spring (16) is connected to the slide plate (14), and the outer end of the spring (16) is connected to the inner side surface of the vertical plate (8). A scraper (17) is fixed to the outer end of the insertion rod (15), and the outer side surface of the vertical plate (8) is provided with a groove corresponding to the scraper (17), and the spring (16) is in a contracted state.

4. The blending reactor for preparing the true styrene polymerization inhibitor according to claim 3, characterized in that: A through groove is provided at the center of the arc plate (9), an arc scraper (18) is provided inside the through groove, a rotating plate (19) is provided between the arc scraper (18) and the bottom end of the slide plate (14), the top end of the rotating plate (19) is hinged to the bottom end of the slide plate (14), and the bottom end of the rotating plate (19) is hinged to the top end of the arc scraper (18), an inner rod is provided at the bottom of the inner side of the through groove, and the bottom end of the arc scraper (18) is sleeved on the surface of the inner rod, and a vertical convex strip (20) is provided on the outer side of the arc scraper (18), and the thickness of the convex strip (20) gradually increases from top to bottom.

5. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 3, characterized in that: A ring plate (21) is arranged on the inner side of the kettle body (1). The ring plate (21) is located at the top of the stirring component. The ring plate (21) is sleeved on the surface of the rotating rod (6). An inner groove (22) is arranged at the center of the top surface of the ring plate (21). Two opposite first side plates (23) are fixed to the top surface of the ring plate (21). Two opposite second side plates (24) are arranged between the two first side plates (23). The two first side plates (23) and the two second side plates (24) cooperate to surround the top of the inner groove (22). A collecting chamber is formed between the two first side plates (23) and the two second side plates (24), and the top of the collecting chamber corresponds to the feed port (3).

6. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 5, characterized in that: Two opposing through holes (25) are arranged on the inner side of the ring plate (21), a sliding rod (26) is arranged inside the through hole (25), the top end of the sliding rod (26) is connected to the center of the bottom surface of the second side plate (24) by a connecting rod, and a sliding groove (27) corresponding to the connecting rod is arranged on the top surface of the ring plate (21).

7. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 6, characterized in that: A movable plate (28) is fixed to the bottom end of the slide bar (26); a bottom groove corresponding to the movable plate (28) is provided on the bottom surface of the ring plate (21); the inner side surface of the bottom end of the movable plate (28) is connected to the outer side surface of the top end of the slide plate (14) by means of an inner rod; the moving slide plate (14) drives the slide bar (26) to move synchronously by means of the inner rod and the movable plate (28); and the inner rod is made of rubber material.

8. The mixing reactor for preparing the true styrene polymerization inhibitor according to claim 7, characterized in that: An elastic part (29) is provided at the center of the rotating rod (6), the elastic part (29) is located between the two slide plates (14), the inner side surface of the slide plate (14) is in contact with the outer side surface of the circumference of the elastic part (29), an elastic member (30) is sleeved on the surface of the rotating rod (6), the top end of the elastic member (30) is connected to the bottom surface of the ring plate (21), and the bottom end of the elastic member (30) is connected to the top surface of the elastic part (29).

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