Nicosulfuron intermediate acidification reaction device

Abstract

The utility model relates to the technical field of nicosulfuron intermediate production, in particular to a nicosulfuron intermediate acidification reaction device which comprises an acidification tank, a driving hole is formed in the upper side of the acidification tank, a main stirring rod is rotatably installed in the driving hole, and a feeding assembly is fixedly installed on the upper side of the acidification tank; the output end of the driving motor drives the main stirring rod to rotate, 2-chloro-5-chloromethylpyrimidine and dichloromethane or methylbenzene added together with 2-chloro-5-chloromethylpyrimidine are stirred, meanwhile, the driving rod drives the first-stage gear to rotate, the first-stage gear drives the second-stage gear to rotate, the second-stage gear drives the third-stage gear to rotate, and the third-stage gear drives the driving column to rotate. The driving column drives the reciprocating block to reciprocate through the limiting groove of the reciprocating block, and the vulcanizing agent sucked in the feeding box is conveyed into the flow dividing pipe through the conveying pipe and sprayed out through the spray head on the flow dividing pipe to acidify the mixed raw materials in the acidification tank.

Description

Technical Field

[0001] The utility model relates to the technical field of nicosulfuron intermediate production, in particular to a nicosulfuron intermediate acidification reaction device. Background Art

[0002] Nicosulfuron is a widely used selective herbicide, mainly used to control grass weeds, especially in rice fields. A key step in its production is the acidification treatment of the intermediate, which is an important stage in the synthesis of Nicosulfuron. An acidification reaction device is required for the acidification reaction.

[0003] When acidifying nicosulfuron, first prepare 2-chloro-5-chloromethylpyrimidine and dichloromethane or toluene, then pour the solid granular 2-chloro-5-chloromethylpyrimidine and dichloromethane or toluene into an acidification reactor for stirring, and then add a sulfonating agent appropriately during the stirring process for acidification, and the poured sulfiding agent is used to acidify the raw material. In the prior art, when adding the sulfiding agent, it is necessary to manually add quantitatively and continuously through a spray pipe while stirring the reactor. When adding manually, the acid gas generated by the acidification may be inhaled by the workers to affect their health, thereby increasing the work risk. Utility Model Content

[0004] The purpose of the utility model is to provide a Nicosulfuron intermediate acidification reaction device to solve the problem proposed in the above background technology that when adding a sulfiding agent, it is necessary to manually add quantitative and continuous addition through a spray pipe while stirring the reactor, and when adding manually, the acid gas generated by the acidification may be inhaled by the workers, affecting their health, thereby increasing the work risk.

[0005] The technical scheme of the utility model is: a Nicosulfuron intermediate acidification reaction device, comprising an acidification tank, a driving hole is opened on the upper side of the acidification tank, a main stirring rod is rotatably installed in the driving hole, and a feeding assembly is fixedly installed on the upper side of the acidification tank;

[0006] The feeding assembly includes a feeding box, a piston is slidably installed on the inner wall of the feeding box, a reciprocating block is fixedly installed on one side of the piston, a delivery port is opened on the other side of the feeding box, a delivery pipe is fixedly installed in the delivery port, a plurality of mounting blocks are fixedly installed on the inner top wall of the acidification tank, a same diverter pipe is fixedly installed on the lower side of the plurality of mounting blocks, a plurality of diverter holes are opened on the lower side of the diverter pipe, a plurality of nozzles are fixedly installed in the diverter holes, a liquid inlet is opened on the surface of the diverter pipe, the other end of the delivery pipe is installed in the liquid inlet, a one-way valve is fixedly installed on the delivery pipe, a suction port is opened on one side of the feeding box, a suction pipe is fixedly installed in the suction port, a one-way valve is fixedly installed on the suction pipe, and a driving unit is fixedly installed on the surface of the main stirring rod.

[0007] Preferably, the driving unit includes a primary gear, a secondary gear is installed at a height above the acidification tank, the primary gear is meshed with the secondary gear, a third gear is rotatably installed on the upper side of the acidification tank, the third gear is meshed with the second gear, a driving column is fixedly installed on the upper side of the third gear, a limiting groove is provided on the upper side of the reciprocating block, and the driving column is slidably installed in the limiting groove.

[0008] Preferably, the driving unit further comprises a bracket, the bracket is fixedly mounted on the upper side of the acidification tank, a driving motor is fixedly mounted on one end of the bracket, and an output shaft of the driving motor is coaxially fixedly connected to the top end of the main stirring rod.

[0009] Preferably, a feeding port is provided on the surface of the acidification tank, a sealing cover is rotatably installed in the feeding port, an exhaust port is provided on the upper side of the acidification tank, an exhaust pipe is fixedly installed in the exhaust port, a valve is installed on the exhaust pipe, a bottom plate is fixedly installed on the lower side of the acidification tank, a material guide port is provided on the lower side of the bottom plate, a material guide pipe is fixedly installed in the material guide port, and a valve is fixedly installed on the material guide pipe.

[0010] Preferably, a plurality of auxiliary stirring rods are rotatably mounted on the inner top wall of the acidification tank, a main gear is fixedly mounted on the surface of the main stirring rod, and auxiliary gears are fixedly mounted on the surfaces of the plurality of auxiliary stirring rods, and the main gear meshes with the plurality of auxiliary gears.

[0011] Preferably, a medicine box is fixedly mounted on the upper side of the feeding box, a discharge hole is opened on one side of the medicine box, one end of the suction pipe is fixedly mounted in the discharge hole, and a filling port is opened on the upper side of the medicine box.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model drives the main stirring rod to rotate by the output end of the driving motor, and stirs the dichloromethane or toluene added together with 2-chloro-5-chloromethylpyrimidine. At the same time, the driving rod drives the first-stage gear to rotate, the first-stage gear drives the second-stage gear to rotate, the second-stage gear drives the third-stage gear to rotate, and the third-stage gear drives the driving column to rotate. The driving column drives the reciprocating block to reciprocate through the limiting groove of the reciprocating block, and the reciprocating block drives the piston to reciprocate in the feeding box. When the piston gradually moves away from the feeding box, negative pressure is generated inside the feeding box. The suction pipe sucks the agent in the agent box through the negative pressure effect. When the piston gradually approaches and squeezes the inside of the feeding box, the sulfiding agent sucked in the feeding box is transported to the diversion pipe through the conveying pipe, and is sprayed out through the nozzle on the diversion pipe to acidify the mixed raw materials in the acidification tank.

[0014] 2. The utility model drives the main gear to rotate by rotating the main stirring rod, and the main gear drives multiple sub-gears to rotate, and the multiple sub-gears respectively drive the corresponding sub-stirring rods to rotate. By rotating the main stirring rod and the multiple sub-stirring rods, the solution is stirred in multiple directions, thereby improving the stirring and acidification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall cutaway structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the cutaway structure of the feeding box in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the drive unit in the utility model.

[0020] Description of reference numerals:

[0021] 1. Acidification tank; 2. Main stirring rod; 3. Bracket; 4. Driving motor; 5. Primary gear; 6. Secondary gear; 7. Third gear; 8. Driving column; 9. Feed box; 10. Piston; 11. Reciprocating block; 12. Delivery pipe; 13. Mounting block; 14. Diverter pipe; 15. Nozzle; 16. Reagent box; 17. Suction pipe; 18. Sealing cover; 19. Bottom plate; 20. Material guide pipe; 21. Exhaust pipe; 22. Secondary stirring rod; 23. Main gear; 24. Secondary gear. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0023] Figure 1~Figure 4 It is the best embodiment of the utility model, and the following Figure 1~Figure 4 The utility model is further described.

[0024] like Figure 1~Figure 4 As shown, a Nicosulfuron intermediate acidification reaction device comprises an acidification tank 1, a driving hole is opened on the upper side of the acidification tank 1, a main stirring rod 2 is rotatably installed in the driving hole, and a feeding assembly is fixedly installed on the upper side of the acidification tank 1;

[0025] The feeding assembly includes a feeding box 9, a piston 10 is slidably installed on the inner wall of the feeding box 9, a reciprocating block 11 is fixedly installed on one side of the piston 10, a delivery port is opened on the other side of the feeding box 9, a delivery pipe 12 is fixedly installed in the delivery port, a plurality of mounting blocks 13 are fixedly installed on the inner top wall of the acidification tank 1, a same diverter pipe 14 is fixedly installed on the lower side of the plurality of mounting blocks 13, a plurality of diverter holes are opened on the lower side of the diverter pipe 14, a nozzle 15 is fixedly installed in the plurality of diverter holes, a liquid inlet is opened on the surface of the diverter pipe 14, the other end of the delivery pipe 12 is installed in the liquid inlet, a one-way valve is fixedly installed on the delivery pipe 12, a suction port is opened on one side of the feeding box 9, a suction pipe 17 is fixedly installed in the suction port, a one-way valve is fixedly installed on the suction pipe 17, and a driving unit is fixedly installed on the surface of the main stirring rod 2.

[0026] By means of the above structure, the driving hole is opened at the center position of the upper side of the acidification tank 1, the delivery port and the suction port on the feed box 9 are opened on the same side of the feed box 9, and the delivery pipe 12 and the suction pipe 17 correspondingly installed on the surface are both installed with a one-way valve, wherein the delivery pipe 12 one-way valve is from the feed box 9 to the diverter pipe 14, and the suction pipe 17 has an external interface to the feed box 9. The diverter pipe 14 is annular and is fixedly installed overhead by two mounting blocks 13 to prevent movement interference, and an annular diverter hole with equal spacing is opened at the bottom, and each diverter hole is provided with a one-way valve. A nozzle 15 is fixedly installed in the flow hole for spraying the vulcanizing agent used in acidification. The reciprocating block 11 drives the piston 10 to reciprocate in the feeding box 9. When the piston 10 gradually moves away from the feeding box 9, a negative pressure is generated inside the feeding box 9. The suction pipe 17 sucks the agent in the agent box 16 through the negative pressure effect. When the piston 10 gradually approaches and squeezes the inside of the feeding box 9, the vulcanizing agent sucked into the feeding box 9 is transported to the diversion pipe 14 through the delivery pipe 12 and sprayed out through the nozzle 15 on the diversion pipe 14.

[0027] Furthermore, the driving unit includes a primary gear 5, a secondary gear 6 is installed at a height on the upper side of the acidification tank 1, the primary gear 5 is meshed with the secondary gear 6, a tertiary gear 7 is rotatably installed on the upper side of the acidification tank 1, the tertiary gear 7 is meshed with the secondary gear 6, a driving column 8 is fixedly installed on the upper side of the tertiary gear 7, a limiting groove is provided on the upper side of the reciprocating block 11, and the driving column 8 is slidably installed in the limiting groove.

[0028] By means of the above structure, the primary gear 5 and the tertiary gear 7 have the same size, and the primary gear 5 drives the tertiary gear 7 to rotate through the secondary gear 6. The driving column 8 on the tertiary gear 7 is installed on the outer ring position of the tertiary gear 7. The limiting groove on the upper side of the reciprocating block 11 has a groove length that is the same as the diameter of the tertiary gear 7 to prevent movement interference.

[0029] Furthermore, the driving unit also includes a bracket 3, which is fixedly mounted on the upper side of the acidification tank 1, and a driving motor 4 is fixedly mounted on one end of the bracket 3, and an output shaft of the driving motor 4 is coaxially fixedly connected to the top end of the main stirring rod 2.

[0030] With the above structure, the bracket 3 is L-shaped, which is convenient for fixing and installing the driving motor 4.

[0031] Furthermore, a feeding port is provided on the surface of the acidification tank 1, a sealing cover 18 is rotatably installed in the feeding port, an exhaust port is provided on the upper side of the acidification tank 1, an exhaust pipe 21 is fixedly installed in the exhaust port, a valve is installed on the exhaust pipe 21, a bottom plate 19 is fixedly installed on the lower side of the acidification tank 1, a material guide port is provided on the lower side of the bottom plate 19, a material guide pipe 20 is fixedly installed in the material guide port, and a valve is fixedly installed on the material guide pipe 20.

[0032] By means of the above structure, the feeding port is convenient for feeding into the acidification tank 1, and the acidification tank 1 is sealed by the sealing cover 18 to prevent the escape of harmful gases generated during the acidification process. The exhaust pipe 21 is used to discharge harmful gases, and the material guide pipe 20 is convenient for discharging the acidified materials. Manual valves are installed on the material guide pipe 20 and the exhaust pipe 21. When acidification is carried out, it is necessary to keep the external temperature at a suitable temperature and maintain the reaction temperature in the acidification tank 1 stable.

[0033] Furthermore, a plurality of auxiliary stirring rods 22 are rotatably mounted on the inner top wall of the acidification tank 1 , a main gear 23 is fixedly mounted on the surface of the main stirring rod 2 , and auxiliary gears 24 are fixedly mounted on the surfaces of the plurality of auxiliary stirring rods 22 , and the main gear 23 meshes with the plurality of auxiliary gears 24 .

[0034] With the above structure, a total of four auxiliary stirring rods 22 are installed, and this number can be increased or decreased according to actual conditions. A secondary gear 24 is fixedly installed on the surface of each auxiliary stirring rod 22. When the main gear 23 rotates, it will drive multiple secondary gears 24 to stir at the same time, disrupting the stirring direction of the solution, thereby preventing the solution from being stirred in the same direction along the main stirring rod 2, resulting in poor stirring effect.

[0035] Furthermore, a medicine box 16 is fixedly installed on the upper side of the feeding box 9, a discharge hole is opened on one side of the medicine box 16, one end of the suction pipe 17 is fixedly installed in the discharge hole, and a filling port is opened on the upper side of the medicine box 16.

[0036] With the above structure, the reagent box 16 is convenient for placing the vulcanizing agent, and the vulcanizing agent can be injected into the injection port and discharged through the discharge hole.

[0037] Working principle: When the device is used, firstly, the prepared 2-chloro-5-chloromethylpyrimidine and dichloromethane or toluene are sequentially put into the acidification tank 1 through the feeding port, the sealing cover 18 is manually closed, and then the vulcanizing agent required for acidification is injected into the reagent box 16 through the feeding port, and the drive motor 4 is started to start acidification. The output end of the drive motor 4 drives the main stirring rod 2 to rotate, and the dichloromethane or toluene added with 2-chloro-5-chloromethylpyrimidine is stirred. At the same time, the drive rod drives the primary gear 5 to rotate, the primary gear 5 drives the secondary gear 6 to rotate, the secondary gear 6 drives the tertiary gear 7 to rotate, and the tertiary gear 7 drives the driving column 8 to rotate, and the driving column 8 drives the reciprocating block 11 to reciprocate through the limit groove of the reciprocating block 11, and the reciprocating block 11 drives the piston 10 to reciprocate in the feeding box 9. When the piston 10 gradually moves away from the feeding box 9, a negative pressure is generated inside the feeding box 9, and the suction pipe 17 sucks the medicine in the medicine box 16 through the negative pressure effect. When the piston 10 gradually approaches and squeezes the inside of the feeding box 9, the sulfiding agent sucked into the feeding box 9 is transported to the shunt pipe 14 through the conveying pipe 12, and is sprayed out through the nozzle 15 on the shunt pipe 14 to add the sulfiding agent and acidify the mixed raw materials in the acidification tank 1.

[0038] When the main stirring rod 2 rotates, it drives the main gear 23 to rotate, and the main gear 23 drives multiple sub-gears 24 to rotate. The multiple sub-gears 24 respectively drive the corresponding sub-stirring rods 22 to rotate. The main stirring rod 2 and the multiple sub-stirring rods 22 rotate to improve the stirring and acidification effect.

[0039] After the acidification reaction is completed, the drive motor 4 is turned off, and the collecting dish is first placed under the guide tube 20, and the valve is manually opened to discharge the acidified solution from the guide tube 20. When all the solution is discharged, the valve of the guide tube 20 is closed, and then the exhaust pipe 21 is connected to a gas purifier and the valve is manually opened to discharge and purify the gas generated by the acidification through the exhaust pipe 21, thereby completing the acidification of the nicosulfuron intermediate.

[0040] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A Nicosulfuron intermediate acidification reaction device, comprising an acidification tank (1), characterized in that: A driving hole is provided on the upper side of the acidification tank (1), a main stirring rod (2) is rotatably mounted in the driving hole, and a feeding assembly is fixedly mounted on the upper side of the acidification tank (1); The feeding assembly comprises a feeding box (9), a piston (10) is slidably mounted on the inner wall of the feeding box (9), a reciprocating block (11) is fixedly mounted on one side of the piston (10), a delivery port is opened on the other side of the feeding box (9), a delivery pipe (12) is fixedly mounted in the delivery port, a plurality of mounting blocks (13) are fixedly mounted on the inner top wall of the acidification tank (1), a same diverter pipe (14) is fixedly mounted on the lower side of the plurality of mounting blocks (13), and the lower side of the diverter pipe (14) is fixedly mounted on the lower side of the diverter pipe (14). A plurality of flow diversion holes are opened on the side, and nozzles (15) are fixedly installed in the plurality of flow diversion holes. A liquid inlet is opened on the surface of the flow diversion pipe (14), and the other end of the delivery pipe (12) is installed in the liquid inlet. A one-way valve is fixedly installed on the delivery pipe (12). A suction port is opened on one side of the feeding box (9), and a suction pipe (17) is fixedly installed in the suction port. A one-way valve is fixedly installed on the suction pipe (17). A driving unit is fixedly installed on the surface of the main stirring rod (2).

2. A Nicosulfuron intermediate acidification reaction device according to claim 1, characterized in that: The driving unit comprises a primary gear (5), a secondary gear (6) is installed at a height above the acidification tank (1), the primary gear (5) meshes with the secondary gear (6), a third gear (7) is rotatably installed on the upper side of the acidification tank (1), the third gear (7) meshes with the second gear (6), a driving column (8) is fixedly installed on the upper side of the third gear (7), a limiting groove is provided on the upper side of the reciprocating block (11), and the driving column (8) is slidably installed in the limiting groove.

3. A Nicosulfuron intermediate acidification reaction device according to claim 2, characterized in that: The drive unit further comprises a bracket (3), the bracket (3) being fixedly mounted on the upper side of the acidification tank (1), a drive motor (4) being fixedly mounted on one end of the bracket (3), and an output shaft of the drive motor (4) being coaxially fixedly connected to the top end of the main stirring rod (2).

4. A Nicosulfuron intermediate acidification reaction device according to claim 1, characterized in that: The surface of the acidification tank (1) is provided with a feeding port, a sealing cover (18) is rotatably mounted in the feeding port, an exhaust port is provided on the upper side of the acidification tank (1), an exhaust pipe (21) is fixedly mounted in the exhaust port, a valve is mounted on the exhaust pipe (21), a bottom plate (19) is fixedly mounted on the lower side of the acidification tank (1), a material guide port is provided on the lower side of the bottom plate (19), a material guide pipe (20) is fixedly mounted in the material guide port, and a valve is fixedly mounted on the material guide pipe (20).

5. The nicosulfuron intermediate acidification reaction device according to claim 1, characterized in that: A plurality of auxiliary stirring rods (22) are rotatably mounted on the inner top wall of the acidification tank (1), a main gear (23) is fixedly mounted on the surface of the main stirring rod (2), and auxiliary gears (24) are fixedly mounted on the surfaces of the plurality of auxiliary stirring rods (22), and the main gear (23) is meshed with the plurality of auxiliary gears (24).

6. The Nicosulfuron intermediate acidification reaction device according to claim 1, characterized in that: A medicine box (16) is fixedly mounted on the upper side of the feeding box (9), a discharge hole is provided on one side of the medicine box (16), one end of the suction pipe (17) is fixedly mounted in the discharge hole, and a material injection port is provided on the upper side of the medicine box (16).

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