Reaction kettle for mesotrione raw material production

Abstract

The invention relates to the technical field of mesotrione raw material production, in particular to a reaction kettle for mesotrione raw material production, which comprises a reaction kettle body, the outer ring surface of the reaction kettle body is rotatably sleeved with a treatment column, the outer surface of the treatment column is rotatably sleeved with a fixed outer cylinder, the upper end of the fixed outer cylinder is fixed with the outer ring surface of the reaction kettle body, and the lower end of the fixed outer cylinder is fixed with the outer ring surface of the reaction kettle body. An annular treatment groove is formed in the outer circumferential surface of the treatment column, the upper end of the treatment column is connected with a power structure, the power structure is mounted on the outer surface of the reaction kettle body, the upper end of the reaction kettle body is fixedly communicated with an air pump, a fixed cover plate is fixed to the outer surface of the fixed outer cylinder, and a separation structure is slidably inserted into the annular treatment groove. By arranging the annular treatment groove, the separation structure and the ventilation box, as the separation structure is inserted into the annular treatment groove, gas can be discharged from the ventilation box on the other side of the separation structure only by winding a circle in the annular treatment groove, and the moving path of the gas in the annular treatment groove is increased.

Description

Technical Field

[0001] The invention relates to the technical field of mesotrione raw material production, in particular to a reaction kettle used for mesotrione raw material production. Background Art

[0002] Mesotrione is a pre-emergence and post-emergence broad-spectrum selective herbicide that can inhibit hydroxyphenylpyruvate dioxidase (HPPD). It can effectively control major broadleaf weeds and some grass weeds. The mesotrione production equipment includes: chlorination reactor, synthesis reactor and downstream post-processing, drying, crushing and other related supporting equipment.

[0003] The reactor is one of the important reaction equipment in the production of mesotrione raw materials. When the raw materials are produced in the reactor, pollutant gases will be generated. In order to prevent direct discharge from polluting the environment, the generated pollutant gases will be purified by passing through an absorption liquid. However, the pollutant gases generated by the existing reactor pass through the absorption liquid for a short time, resulting in insufficient absorption of the pollutant gases. After discharge, the environment will still be polluted. Therefore, a reactor for the production of mesotrione raw materials is proposed. Summary of the invention

[0004] In order to prevent incomplete absorption caused by a short contact time between polluting gas and absorption liquid, the present invention provides a reactor for producing mesotrione raw material.

[0005] The present invention provides a reactor for producing mesotrione raw materials, which adopts the following technical scheme: it comprises a reactor body, the outer ring surface of the reactor body is rotatably sleeved with a treatment column, the outer surface of the treatment column is rotatably sleeved with a fixed outer cylinder, the upper end of the fixed outer cylinder is fixed to the outer ring surface of the reactor body, an annular treatment groove is provided on the outer circumferential surface of the treatment column, the upper end of the treatment column is connected with a power structure, the power structure is installed on the outer surface of the reactor body, the upper end of the reactor body is fixedly connected with an air pump, the outer surface of the fixed outer cylinder is fixed with a fixed cover plate, a partition structure is slidably inserted in the inner part of the annular treatment groove, three vertical grooves are provided on the outer ring surface of the fixed outer cylinder, the vertical groove located in the middle position of the three vertical grooves is slidably sleeved on the outer surface of the partition structure, and three through vertical grooves are provided on one side of the fixed cover plate away from the axis of the reactor body, and the three vertical grooves are respectively connected to the three vertical grooves. The grooves are connected, and two ventilation boxes are fixed on one side of the fixed cover plate away from the fixed outer cylinder. The vertical groove located in the middle position of the three vertical grooves is slidably sleeved on the outer surface of the partition structure, and the other two vertical grooves are respectively connected to the two ventilation boxes. The air outlet end of the vacuum pump is fixedly connected to one of the ventilation boxes. The upper surface of the treatment column is a concave structure, and a liquid supply structure is rotatably inserted inside the concave structure of the treatment column. The other end of the liquid supply structure is connected to the fixed outer cylinder, and a plurality of liquid through holes connected to the annular treatment groove are opened on the inner bottom wall of the concave structure of the treatment column. A collecting ring cylinder is arranged below the treatment column, and the collecting ring cylinder is fixedly sleeved on the outer surface of the reaction kettle body. A ring plate is rotatably inserted on the upper surface of the collecting ring cylinder, and a liquid outlet structure is fixedly inserted on the upper surface of the ring plate. The upper end of the liquid outlet structure is fixedly penetrated through the bottom surface of the treatment column, and the upper end of the liquid outlet structure is connected to the inside of the annular treatment groove.

[0006] Optionally, the power structure includes a motor, a driving gear and a driven gear ring, the lower end of the driven gear ring is fixed to the upper end of the processing column, the driving gear is meshed with the outer ring surface of the driven gear ring, the driving gear is fixedly sleeved on the output end of the motor, and the motor is fixed to the reactor body.

[0007] Optionally, the partition structure includes a movable vertical plate and a partition column. The movable vertical plate is fixedly sleeved on the outer surface of the partition column. The upper and lower ends of the movable vertical plate slide through the upper and lower inner walls of the fixed cover plate respectively. Short grooves are opened on the front side of the movable vertical plate and on both sides of the partition column. The two short grooves are respectively connected to the two vertical grooves. The partition column is slidably inserted into the adjacent vertical grooves and the inside of the vertical grooves.

[0008] Optionally, the partition column is a tubular structure with a closed rear end, and a plurality of elastic sealing bags are fixed to one end of the partition column located inside the annular processing tank. The front end of the partition column is fixedly connected to a bent pipe, and the upper end of the bent pipe is fixedly connected to an air cylinder. A pressure plate is slidably inserted into the interior of the air cylinder, and the upper surface of the pressure plate is elastically connected to the inner top wall of the air cylinder, and the upper end of the pressure plate slides through the inner top wall of the air cylinder.

[0009] Optionally, the liquid supply structure includes a liquid supply pipe and a cover ring, the cover ring is rotatably inserted into the recessed structure of the processing column, the cover ring is fixedly sleeved on the lower end of the liquid supply pipe, and the upper end of the liquid supply pipe is fixed to the upper end of the fixed outer cylinder.

[0010] Optionally, the annular processing groove is distributed in an annular wave shape, and the line connecting the wave crest and the wave bottom of the annular processing groove is inclined.

[0011] Optionally, the liquid outlet structure includes an upper tube and a lower tube, the lower end of the upper tube is fixed to the upper end of the lower tube, the upper end of the upper tube is fixed through the bottom surface of the treatment column, and the lower end of the lower tube is fixed through the upper surface of the ring plate.

[0012] Optionally, a floating head is provided inside the upper tube, the outer diameter of the floating head is smaller than the inner diameter of the upper tube, a thick rod is fixed to the bottom surface of the floating head, the upper tube and the lower tube are both slidably sleeved on the outer surface of the thick rod, a thin rod is fixed to the lower end of the thick rod, a fork frame is slidably sleeved on the outer surface of the thin rod, the fork frame is fixedly inserted into the inside of the lower tube, the outer diameter of the thin rod is smaller than the outer diameter of the thick rod, and the upper end of the upper tube is located at the bottom of the wall of the annular treatment tank.

[0013] Optionally, the height of the vertical groove is equal to the height of the vertical groove, and the height of the vertical groove is greater than the distance between the highest point and the lowest point of the annular processing groove.

[0014] In summary, the present invention includes the following beneficial technical effects:

[0015] 1. The present invention provides an annular treatment tank, a partition structure and a ventilation box, and pours absorption liquid into the annular treatment tank through the liquid hole. The outer cylinder is fixed to seal the outer ring surface of the annular treatment tank. The partition structure separates the interior of the annular treatment tank. The vacuum pump fills the gas generated in the reactor body into the annular treatment tank from one side of the partition structure. Since the partition structure is inserted into the annular treatment tank, the gas can only go around the annular treatment tank once before being discharged from the ventilation box on the other side of the partition structure, thereby increasing the movement path of the gas in the annular treatment tank. The wavy annular treatment tank further increases the path for the gas to move, thereby increasing the contact time between the gas and the absorption liquid.

[0016] 2. The present invention arranges a movable vertical plate, a partition column, a short groove, an elastic sealing bag and an air pressure plate. The air pressure plate has a tendency to fill the gas in the gas cylinder into the partition column when elastically connected to the gas cylinder. The filled gas pushes the elastic sealing bag to expand and fully contact the inner wall of the annular treatment tank, thereby preventing the gas from directly leaking to the other side through the partition column and the inner wall of the annular treatment tank. When the motor drives the treatment column to rotate through the transmission, the partition column drives the movable vertical plate to slide in the fixed cover plate by sliding in the annular treatment tank. When the movable vertical plate moves, the short groove follows the movable vertical plate to move up and down, thereby connecting the vertical groove, the vertical groove and the annular treatment tank. The vacuum pump continuously changes the position of the new gas to be treated entering the annular treatment tank through the connected ventilation box, and continuously pushes the previously filled gas to be discharged from the ventilation box on the other side of the partition column.

[0017] 3. The present invention arranges an upper tube, a lower tube, a floating head, a thick rod and a thin rod. The treated liquid sprayed into the annular treatment tank flows into the upper tube. The thick rod blocks the connection between the upper tube and the lower end. As the liquid level of the absorption liquid in the upper tube increases, the liquid level drives the thick rod and the thin rod to gradually move upward by pushing the floating head. When the thin rod is pulled into the upper tube, the liquid in the upper tube flows from the gap between the thin rod and the upper tube and the lower tube to the lower tube, and then flows into the collecting ring. After the liquid in the upper tube is lower than a certain height, the thick rod blocks the upper tube and the lower tube again to ensure that there is always liquid in the upper tube, preventing gas from leaking from the fitting place of the upper tube, the lower tube and the thick rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of the connection between the driving gear and the driven gear ring in an embodiment of the present invention;

[0020] Figure 3 2 is a schematic diagram of the structure of the connection between the collecting ring cylinder and the ring plate in an embodiment of the present invention;

[0021] Figure 4 is a schematic top view of some structures in an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure in which the movable vertical plate is connected to the fixed cover plate in an embodiment of the present invention;

[0023] Figure 6 2 is a schematic diagram of the structure of the upper tube and the lower tube connected in an embodiment of the present invention;

[0024] Figure 7 is a schematic structural diagram of the connection between the partition column and the elastic capsule in an embodiment of the present invention;

[0025] Figure 8 is a schematic diagram of the structure in which a thin rod and a thick rod are connected in an embodiment of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the connection between the air pressure plate and the air cylinder in an embodiment of the present invention.

[0027] 1. Reactor body; 2. Fixed outer cylinder; 3. Treatment column; 4. Annular treatment tank; 5. Power structure; 51. Motor; 52. Driving gear; 53. Driven gear ring; 6. Partition structure; 61. Movable vertical plate; 62. Partition column; 621. Elastic sealing bag; 622. Bend pipe; 623. Air cylinder; 624. Air pressure plate; 63. Short groove; 7. Liquid supply structure; 71. Liquid supply pipe; 72. Cover ring; 8. Liquid outlet structure; 81. Upper tube; 82. Lower tube; 83. Floating head; 84. Thick rod; 85. Fork frame; 86. Thin rod; 9. Vacuum pump; 10. Fixed cover plate; 11. Vertical groove; 12. Vertical groove; 13. Ventilation box; 14. Collecting ring cylinder; 15. Ring plate; 16. Liquid through hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-9 The present invention is described in further detail.

[0029] The embodiment of the present invention discloses a reactor for producing mesotrione raw materials. Figure 1-9 As shown, it includes a reactor body 1, the outer ring surface of the reactor body 1 is rotatably sleeved with a processing column 3, the outer surface of the processing column 3 is rotatably sleeved with a fixed outer cylinder 2, the upper end of the fixed outer cylinder 2 is fixed to the outer ring surface of the reactor body 1, and the outer circumferential surface of the processing column 3 is provided with an annular processing groove 4, the annular processing groove 4 is distributed in an annular wave shape, and the connection line between the wave crest and the wave bottom of the annular processing groove 4 is inclined, which increases the path of the gas when it moves in the annular processing groove 4 for one circle, and the upper end of the processing column 3 is connected with a power structure 5, which is installed on the outer surface of the reactor body 1. The power structure 5 includes a motor 51, a driving gear 52 and a driven gear ring 53, the lower end of the driven gear ring 53 is fixed to the upper end of the processing column 3, the driving gear 52 is meshed with the outer ring surface of the driven gear ring 53, the driving gear 52 is fixedly sleeved on the output end of the motor 51, the motor 51 is fixed to the reactor body 1, the motor 51 drives the driving gear 52 to rotate, and the driven gear ring 53 drives the processing column 3 to rotate by meshing with the driving gear 52.

[0030] The upper end of the reactor body 1 is fixedly connected to a vacuum pump 9, a fixed cover plate 10 is fixed to the outer surface of the fixed outer cylinder 2, a partition structure 6 is slidably inserted inside the annular treatment tank 4, and three vertical grooves 11 are provided on the outer ring surface of the fixed outer cylinder 2. The vertical groove 11 located in the middle position among the three vertical grooves 11 is slidably sleeved on the outer surface of the partition structure 6. Three through vertical grooves 12 are provided on the side of the fixed cover plate 10 away from the axis of the reactor body 1. The three vertical grooves 12 are respectively connected to the three vertical grooves 11. The height of the vertical groove 11 is equal to the height of the vertical groove 12, and the height of the vertical groove 11 is greater than the distance between the highest point and the lowest point of the annular treatment tank 4. Two ventilation boxes 13 are fixed to the side of the fixed cover plate 10 away from the fixed outer cylinder 2.

[0031] The middle vertical slot 12 of the three vertical slots 12 is slidably sleeved on the outer surface of the partition structure 6. The partition structure 6 includes a movable vertical plate 61 and a partition column 62. The movable vertical plate 61 is fixedly sleeved on the outer surface of the partition column 62. The upper and lower ends of the movable vertical plate 61 slide through the upper and lower inner walls of the fixed cover plate 10 respectively. Short slots 63 are provided on the front of the movable vertical plate 61 and on both sides of the partition column 62. The two short slots 63 are respectively connected to the two vertical slots 12. The partition column 62 is slidably inserted in the adjacent vertical slots 11 and Inside the vertical groove 12, when the treatment column 3 rotates, the partition column 62 slides in the annular treatment groove 4, and the partition column 62 drives the movable vertical plate 61 to move up and down in the fixed cover plate 10. When the movable vertical plate 61 moves, the two short grooves 63 are respectively connected with the two vertical grooves 12, and the other two vertical grooves 12 are respectively connected with the two ventilation boxes 13. The air outlet end of the vacuum pump 9 is fixedly connected to one of the ventilation boxes 13, and the vacuum end of the vacuum pump 9 fills the gas in the reactor body 1 into the annular treatment groove 4 through the connected ventilation box 13.

[0032] The partition column 62 is a tubular structure with a closed rear end. A plurality of elastic sealing bags 621 are fixedly arranged at one end of the partition column 62 located inside the annular treatment tank 4. A curved pipe 622 is fixedly connected to the front end of the partition column 62. An air cylinder 623 is fixedly connected to the upper end of the curved pipe 622. An air pressure plate 624 is slidably inserted inside the air cylinder 623. The upper surface of the air pressure plate 624 is elastically connected to the inner top wall of the air cylinder 623. The upper end of the air pressure plate 624 slides through the inner top wall of the air cylinder 623. The air pressure plate 624 has a tendency to fill the gas in the air cylinder 623 into the partition column 62 through the elastic connection with the air cylinder 623. The filled gas has a tendency to push the elastic sealing bag 621 to expand and fully contact with the annular treatment tank 4, thereby effectively preventing the gas from being directly connected through the partition column 62.

[0033] The upper surface of the treatment column 3 is a concave structure, and a liquid supply structure 7 is rotatably inserted inside the concave structure of the treatment column 3. The other end of the liquid supply structure 7 is connected to the fixed outer cylinder 2. The liquid supply structure 7 includes a liquid supply tube 71 and a cover ring 72. The cover ring 72 is rotatably inserted inside the concave structure of the treatment column 3. The cover ring 72 is fixedly sleeved on the lower end of the liquid supply tube 71. The upper end of the liquid supply tube 71 is fixed to the upper end of the fixed outer cylinder 2, and the outer end of the liquid supply tube 71 is connected to the supply structure of the absorption liquid.

[0034] The inner bottom wall of the concave structure of the treatment column 3 is provided with a plurality of liquid holes 16 connected to the annular treatment tank 4 . The liquid supply pipe 71 fills the absorption liquid into the concave structure of the treatment column 3 , and then the absorption liquid flows into the annular treatment tank 4 through the liquid holes 16 .

[0035] A collecting ring cylinder 14 is arranged below the treatment column 3, and the collecting ring cylinder 14 is fixedly sleeved on the outer surface of the reaction kettle body 1, and a ring plate 15 is rotatably inserted on the upper surface of the collecting ring cylinder 14, and a liquid outlet structure 8 is fixedly inserted on the upper surface of the ring plate 15, and the upper end of the liquid outlet structure 8 is fixedly penetrated through the bottom surface of the treatment column 3, and the upper end of the liquid outlet structure 8 is communicated with the interior of the annular treatment tank 4, and the liquid outlet structure 8 comprises an upper tube 81 and a lower tube 82, and the lower end of the upper tube 81 is fixed to the upper end of the lower tube 82, and the upper end of the upper tube 81 is fixedly penetrated through the bottom surface of the treatment column 3, and the lower end of the lower tube 82 is fixedly penetrated through the upper surface of the ring plate 15, and a floating head 83 is arranged inside the upper tube 81, and the outer diameter of the floating head 83 is smaller than the inner diameter of the upper tube 81, and a thick rod 84 is fixed on the bottom surface of the floating head 83, and the upper tube 81 and the lower tube 82 are both slidably sleeved on the outer surface of the thick rod 84, and a thin rod 86 is fixed on the lower end of the thick rod 84, The outer surface of the thin rod 86 is slidably sleeved with a fork frame 85, and the fork frame 85 is fixedly inserted into the inside of the lower tube 82. The outer diameter of the thin rod 86 is smaller than the outer diameter of the thick rod 84. The upper end of the upper tube 81 is located at the wave bottom of the annular treatment tank 4. The treatment liquid sprayed into the annular treatment tank 4 flows into the upper tube 81. As the liquid level of the absorption liquid in the upper tube 81 increases, the liquid level drives the thick rod 84 and the thin rod 86 to gradually move upward by pushing the floating head 83. When the thin rod 86 is pulled into the upper tube 81, the liquid in the upper tube 81 flows from the gap between the thin rod 86 and the upper tube 81 and the lower tube 82 to the lower tube 82, and then flows into the collecting ring tube 14. After the liquid in the upper tube 81 is lower than a certain height, the thick rod 84 re-seals the upper tube 81 and the lower tube 82 to ensure that there is always liquid in the upper tube 81 to prevent gas from leaking from the fitting between the upper tube 81 and the lower tube 82 and the thick rod 84.

[0036] The working principle is as follows: the liquid supply pipe 71 fills the absorption liquid into the concave structure of the treatment column 3, and then the absorption liquid is poured into the annular treatment tank 4 through the liquid hole 16, the outer cylinder 2 is fixed to seal the outer ring surface of the annular treatment tank 4, the partition column 62 is inserted into the annular treatment tank 4 to separate the annular treatment tank 4, and the air pressure plate 624 has a tendency to fill the gas in the gas cylinder 623 into the partition column 62 under the elastic connection with the gas cylinder 623. The filled gas pushes the elastic sealing bag 621 to expand and fully contact the inner wall of the annular treatment tank 4. The vacuum pump 9 fills the gas generated in the reactor body 1 into the annular treatment tank 4 from one side of the partition column 62. Since the partition column 62 is inserted inside the annular treatment tank 4, the gas can only The gas can only be discharged from the ventilation box 13 on the other side of the partition column 62 after going around the annular treatment tank 4 once. The wavy annular treatment tank 4 further increases the path for the gas to travel and increases the contact time between the gas and the absorption liquid. When the treatment column 3 rotates, the partition column 62 drives the movable vertical plate 61 to slide in the fixed cover plate 10 by sliding in the annular treatment tank 4. When the movable vertical plate 61 moves, the short groove 63 follows the movable vertical plate 61 to move up and down, connecting the vertical groove 12, the vertical groove 11 and the annular treatment tank 4. The vacuum pump 9 continuously changes the position of the new gas to be treated entering the annular treatment tank 4 through the connected ventilation box 13, and continuously pushes the previously filled gas to be discharged from the ventilation box 13 on the other side of the partition column 62.

[0037] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reactor for producing mesotrione raw materials, comprising a reactor body (1), characterized in that: The outer ring surface of the reaction kettle body (1) is rotatably sleeved with a treatment column (3), and the outer surface of the treatment column (3) is rotatably sleeved with a fixed outer cylinder (2), the upper end of the fixed outer cylinder (2) is fixed to the outer ring surface of the reaction kettle body (1), an annular treatment groove (4) is provided on the outer circumferential surface of the treatment column (3), the upper end of the treatment column (3) is connected to a power structure (5), and the power structure (5) is installed on the outer surface of the reaction kettle body (1), the upper end of the reaction kettle body (1) is fixedly connected to an air extraction pump (9), and the outer surface of the fixed outer cylinder (2) is fixed with a fixed The fixed cover plate (10) is provided with a partition structure (6) which is slidably inserted into the interior of the annular processing tank (4); the outer ring surface of the fixed outer cylinder (2) is provided with three vertical grooves (11); the vertical groove (11) located in the middle of the three vertical grooves (11) is slidably sleeved on the outer surface of the partition structure (6); the fixed cover plate (10) is provided with three through vertical grooves (12) on a side away from the axis of the reaction kettle body (1); the three vertical grooves (12) are respectively connected to the three vertical grooves (11); the fixed cover plate (10) is fixed on a side away from the fixed outer cylinder (2) There are two ventilation boxes (13), the vertical groove (12) located in the middle position of the three vertical grooves (12) is slidably sleeved on the outer surface of the partition structure (6), and the other two vertical grooves (12) are respectively connected to the two ventilation boxes (13), and the air outlet end of the suction pump (9) is fixedly connected to one of the ventilation boxes (13). The upper surface of the processing column (3) is a concave structure, and a liquid supply structure (7) is rotatably inserted inside the concave structure of the processing column (3), and the other end of the liquid supply structure (7) is connected to the fixed outer cylinder (2). The inner bottom wall of the concave structure is provided with a plurality of liquid through holes (16) connected to the annular processing tank (4); a collecting ring cylinder (14) is arranged below the processing column (3); the collecting ring cylinder (14) is fixedly sleeved on the outer surface of the reaction kettle body (1); a ring plate (15) is rotatably inserted on the upper surface of the collecting ring cylinder (14); a liquid outlet structure (8) is fixedly inserted on the upper surface of the ring plate (15); the upper end of the liquid outlet structure (8) is fixedly inserted through the bottom surface of the processing column (3); and the upper end of the liquid outlet structure (8) is connected to the inside of the annular processing tank (4).

2. The reactor for producing mesotrione raw materials according to claim 1, characterized in that: The power structure (5) comprises a motor (51), a driving gear (52) and a driven gear ring (53); the lower end of the driven gear ring (53) is fixed to the upper end of the processing column (3); the driving gear (52) is meshed with the outer ring surface of the driven gear ring (53); the driving gear (52) is fixedly sleeved on the output end of the motor (51); and the motor (51) is fixed to the reaction kettle body (1).

3. The reactor for producing mesotrione raw materials according to claim 1, characterized in that: The partition structure (6) comprises a movable vertical plate (61) and a partition column (62). The movable vertical plate (61) is fixedly sleeved on the outer surface of the partition column (62). The upper and lower ends of the movable vertical plate (61) slide through the upper and lower inner walls of the fixed cover plate (10) respectively. Short grooves (63) are provided on the front of the movable vertical plate (61) and on both sides of the partition column (62). The two short grooves (63) are respectively connected to the two vertical grooves (12). The partition column (62) is slidably inserted into the adjacent vertical grooves (11) and vertical grooves (12).

4. The reactor for producing mesotrione raw materials according to claim 3, characterized in that: The partition column (62) is a tubular structure with a closed rear end. A plurality of elastic sealing bags (621) are fixedly arranged at one end of the partition column (62) located inside the annular processing tank (4). A curved pipe (622) is fixedly connected to the front end of the partition column (62). The upper end of the curved pipe (622) is fixedly connected to an air cylinder (623). An air pressure plate (624) is slidably inserted inside the air cylinder (623). The upper surface of the air pressure plate (624) is elastically connected to the inner top wall of the air cylinder (623). The upper end of the air pressure plate (624) slides through the inner top wall of the air cylinder (623).

5. The reactor for producing mesotrione raw materials according to claim 1, characterized in that: The liquid supply structure (7) comprises a liquid supply pipe (71) and a cover ring (72). The cover ring (72) is rotatably inserted into the recessed structure of the treatment column (3). The cover ring (72) is fixedly sleeved on the lower end of the liquid supply pipe (71). The upper end of the liquid supply pipe (71) is fixed to the upper end of the fixed outer cylinder (2).

6. The reactor for producing mesotrione raw materials according to claim 1, characterized in that: The annular processing groove (4) is distributed in an annular wave shape, and the connection line between the wave crest and the wave bottom of the annular processing groove (4) is inclined.

7. The reactor for producing mesotrione raw materials according to claim 6, characterized in that: The liquid outlet structure (8) comprises an upper tube (81) and a lower tube (82); the lower end of the upper tube (81) is fixed to the upper end of the lower tube (82); the upper end of the upper tube (81) is fixed to pass through the bottom surface of the treatment column (3); and the lower end of the lower tube (82) is fixed to pass through the upper surface of the ring plate (15).

8. The reactor for producing mesotrione raw materials according to claim 7, characterized in that: A floating head (83) is arranged inside the upper tube (81), the outer diameter of the floating head (83) is smaller than the inner diameter of the upper tube (81), a thick rod (84) is fixed to the bottom surface of the floating head (83), the upper tube (81) and the lower tube (82) are both slidably sleeved on the outer surface of the thick rod (84), a thin rod (86) is fixed to the lower end of the thick rod (84), a fork frame (85) is slidably sleeved on the outer surface of the thin rod (86), the fork frame (85) is fixedly inserted into the interior of the lower tube (82), the outer diameter of the thin rod (86) is smaller than the outer diameter of the thick rod (84), and the upper end of the upper tube (81) is located at the wave bottom of the annular treatment tank (4).

9. The reactor for producing mesotrione raw materials according to claim 6, characterized in that: The height of the vertical groove (11) is equal to the height of the vertical groove (12), and the height of the vertical groove (11) is greater than the distance between the highest point and the lowest point of the annular processing groove (4).

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