Energy-saving reaction kettle for preparing 4-trifluoromethyl nicotinic acid

Abstract

The utility model relates to the technical field of reaction kettles, and discloses an energy-saving reaction kettle for preparing 4-trifluoromethyl nicotinic acid, which comprises a reaction kettle body, a cover body and a motor, an output shaft of the motor is fixedly connected with a reciprocating screw rod, the other end of the reciprocating screw rod penetrates through the cover body and is connected with a stirring rod, the upper surface of the cover body is provided with a sliding opening in a penetrating manner, and the sliding opening is connected with the stirring rod. One side of the outer wall of the reaction kettle body is fixedly connected with a water tank, the inner wall of the water tank is connected with a water pumping mechanism, the other end of the water pumping mechanism penetrates through the water tank and is connected with a hose, the other end of the hose penetrates through the sliding opening and is connected with a water spraying mechanism, the other end of the water spraying mechanism is connected with the reciprocating screw rod, and the outer wall of the water spraying mechanism is further connected with a limiting assembly. According to the energy-saving reaction kettle for preparing the 4-trifluoromethyl nicotinic acid, when a user cleans the reaction kettle body, the cover plate does not need to be opened, cleaning liquid in the water tank only needs to be sprayed to the inner wall of the reaction kettle body through the water pumping mechanism and the hose and the water spraying mechanism for flushing, and the energy-saving reaction kettle is convenient and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to an energy-saving reaction kettle for preparing 4-trifluoromethylnicotinic acid. Background Art

[0002] 4-Trifluoromethylnicotinic acid is a nicotinic acid derivative with a specific fluorine substituent. It belongs to an aromatic compound containing a trifluoromethyl group and has important biological activity and chemical properties. It is mainly used as a synthetic intermediate and is mainly used in the agricultural and medical fields.

[0003] The preparation of 4-trifluoromethylnicotinic acid usually involves a multi-step chemical reaction, which often requires specific chemical synthesis equipment and instruments. The most common one is the reactor, which is a container used to mix raw materials and carry out chemical reactions. It must have temperature control and stirring functions to ensure that the reaction proceeds evenly. For reactions that require specific pressure conditions, a high-pressure reactor may also be required.

[0004] The patent with the announcement number CN219879907U discloses an energy-saving composite titanium reactor, including: a motor, a feed pipe and a support rod, a cover body is installed at the lower end of the motor, feed pipes are installed on both sides of the motor, a heating component is installed at the lower end of the cover body, a temperature display is installed at the front end of the heating component, vacuum tubes are installed on the left and right sides of the lower end of the heating component, a shell is installed inside the vacuum tube, and a vacuum chamber is arranged inside the shell; compared with the prior art, the reactor has the following beneficial effects: by using a motor, a transmission rod, a material guide and a mixing blade, the material inside the mixing chamber can be quickly stirred and mixed, and at the same time, the mixing blade can fit the bottom of the mixing chamber and prevent precipitation in the reactor; by using a heating component, a heating plate, a vacuum tube and a vacuum chamber, the inside of the reactor can be heated while the inside of the vacuum chamber is in a vacuum state, thereby keeping the inside of the reactor warm and reducing heat loss.

[0005] However, the following problems still exist in the above-mentioned reactor:

[0006] At present, the reactor needs to be cleaned after preparing 4-trifluoromethylnicotinic acid. The common cleaning method is to use a high-pressure water gun to flush the inside of the reactor. However, the current flushing method is mostly done by manually holding a high-pressure water gun to flush from a sealing cover or a feeding port, which not only wastes manpower, but also may splash the mixture inside the reactor onto the workers if they are not careful, posing certain safety hazards. Utility Model Content

[0007] In view of the shortcomings of the prior art, the utility model provides an energy-saving reactor for preparing 4-trifluoromethylnicotinic acid. When the user cleans the energy-saving reactor body, there is no need to open the cover. The user only needs to use the pumping mechanism to spray the cleaning liquid inside the water tank through the hose and the water spraying mechanism to the inner wall of the reactor body for flushing. It is convenient and easy to operate.

[0008] The utility model provides the following technical scheme: an energy-saving reactor for preparing 4-trifluoromethylnicotinic acid, comprising a reactor body, a cover body installed on the reactor body and a motor installed on the cover body, wherein the output shaft of the motor is fixedly connected with a reciprocating screw, the other end of the reciprocating screw passes through the cover body and is connected with a stirring rod, a sliding opening is penetrated through the upper surface of the cover body, one side of the outer wall of the reactor body is fixedly connected with a water tank, the inner wall of the water tank is connected with a pumping mechanism, the other end of the pumping mechanism passes through the water tank and is connected with a hose, the other end of the hose passes through the sliding opening and is connected with a water spraying mechanism, the other end of the water spraying mechanism is connected with the reciprocating screw, and the outer wall of the water spraying mechanism is also connected with a limiting component, and the other end of the limiting component is connected with the sliding opening.

[0009] Furthermore, the pumping mechanism includes a water pump and a water outlet pipe, the outer wall of the water pump is fixedly connected to the bottom surface of the inner wall of the water tank, the output end of the water pump is fixedly connected and communicated with one end of the water outlet pipe, the other end of the water outlet pipe passes through the water tank and is fixedly connected and communicated with one end of the hose away from the cover body.

[0010] Furthermore, the water spray mechanism includes a connecting ring and a nozzle, the inner walls of the connecting ring and the nozzle are provided with a connected water inlet cavity, the outer wall of the nozzle is penetrated with a plurality of nozzles connected with the water inlet cavity, the upper surface of the outer wall of the connecting ring is fixedly connected to the end of the hose away from the water tank, and the water inlet cavity is connected with the hose, the upper surface of the outer wall of the connecting ring is also connected to the limit assembly, and the nozzle is sleeved and threadedly connected to the outer wall of the reciprocating screw.

[0011] Furthermore, the limiting assembly includes an inner rod and a rectangular box, a circular cavity passes through the upper surface of the rectangular box, the lower end of the inner rod is fixedly connected to the upper surface of the outer wall of the connecting ring, the outer wall of the inner rod is slidably connected to the inner wall of the circular cavity, the inner rod and the rectangular box are both sleeved on the outer wall of the hose, and the outer wall of the rectangular box is connected to the inner wall of the sliding mouth.

[0012] Furthermore, a rectangular cavity is opened in the middle of the circular cavity, one end of the inner rod located in the rectangular box is fixedly connected with a rectangular block, and the outer wall of the rectangular block is slidably connected to the inner wall of the rectangular cavity.

[0013] Furthermore, the outer walls at the upper and lower ends of the rectangular box are fixedly connected with anti-slip blocks, the outer wall of the rectangular box is slidably connected to the inner wall of the sliding mouth, the adjacent sides of the two anti-slip blocks are respectively abutted against the inner and outer sides of the cover body, and the length and width of the two anti-slip blocks are both greater than the length and width of the rectangular box and the sliding mouth.

[0014] Furthermore, a water inlet pipe is fixedly connected to the upper surface of the water tank, and a drain pipe is fixedly connected to the side wall at the lower end of the water tank. Both the water inlet pipe and the drain pipe are connected to the interior of the water tank, and a sealing cover is threadedly connected to the outer wall of the water inlet pipe, and a valve is arranged inside the drain pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid has a water tank arranged outside the reactor body, and is connected to a water spraying mechanism located inside the reactor body through a water pumping mechanism and a hose. When a user cleans the energy-saving reactor body, it is not necessary to open a cover plate, but only needs to use the water pumping mechanism to spray the cleaning liquid inside the water tank to the inner wall of the reactor body through the hose and the water spraying mechanism for washing, which is convenient and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the overall appearance of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 It is a schematic diagram of the internal structure of the hose, water spraying mechanism, limit assembly and other components of the utility model.

[0021] In the figure: 1. reactor body; 2. cover; 3. motor; 4. water tank; 5. water inlet pipe; 6. drain pipe; 7. hose; 8. rectangular box; 9. inner rod; 10. connecting ring; 11. nozzle; 12. reciprocating screw rod; 13. stirring rod; 14. water pump; 15. water outlet pipe; 16. anti-drop block; 17. rectangular block; 201, sliding mouth; 801, rectangular cavity; 802, circular cavity; 1001, water inlet cavity; 1101, nozzle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 4, an energy-saving reactor for preparing 4-trifluoromethylnicotinic acid, comprises a reactor body 1, a cover body 2 installed on the reactor body 1 and a motor 3 installed on the cover body 2, the output shaft of the motor 3 is fixedly connected with a reciprocating screw 12, the other end of the reciprocating screw 12 passes through the cover body 2 and is connected with a stirring rod 13, a sliding opening 201 is penetrated through the upper surface of the cover body 2, one side of the outer wall of the reactor body 1 is fixedly connected with a water tank 4, the inner wall of the water tank 4 is connected with a pumping mechanism, the other end of the pumping mechanism passes through the water tank 4 and is connected with a hose 7, the other end of the hose 7 passes through the sliding opening 201 and is connected with a water spraying mechanism, the other end of the water spraying mechanism is connected to the reciprocating screw 12, and the outer wall of the water spraying mechanism is also connected to a limiting component, and the other end of the limiting component is connected to the sliding opening 201.

[0024] The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid in the utility model is similar in structure to the existing energy-saving reactors, such as the energy-saving composite titanium reactor disclosed in the patent with publication number CN219879907U. Figures 1 to 4 As shown, when cleaning the energy-saving reactor for preparing 4-trifluoromethylnicotinic acid in the utility model, there is no need to open the cover body 2. It is only necessary to open the pumping mechanism and the motor 3 through an external controller. After the pumping mechanism is started, the cleaning liquid in the water tank 4 will be transported to the water spraying mechanism through the hose 7, and then sprayed to the inner wall of the reactor body 1 through the water spraying mechanism. At this time, after the motor 3 is started, it will drive the reciprocating screw 12 and the stirring rod 13 to rotate inside the reactor body 1, and then drive the water spraying mechanism to move upward in the reactor body 1, and the cleaning liquid inside the reactor body 1 can be stirred by the stirring rod 13, thereby accelerating the cleaning speed of the inner wall of the reactor body 1, which is convenient and easy to operate.

[0025] Special mention should be made here:

[0026] 1. The external controller can be a currently common PLC control, or it can be a controller automatically equipped with the reactor body 1 and controlled by this controller after being programmed, and there is no specific limitation.

[0027] 2. The function of the limit assembly here is to limit the water spray mechanism from idling when it moves.

[0028] 3. Due to the action of the reciprocating screw rod 12, the water spray mechanism can be driven to continuously move up and down inside the reactor body 1, so it will not get stuck, and there is no need to specifically control the water spray mechanism to return to the bottom, which is more convenient and saves trouble.

[0029] Please refer to Figure 2The pumping mechanism includes a water pump 14 and a water outlet pipe 15. The outer wall of the water pump 14 is fixedly connected to the bottom surface of the inner wall of the water tank 4. The output end of the water pump 14 is fixedly connected and communicated with one end of the water outlet pipe 15. The other end of the water outlet pipe 15 passes through the water tank 4 and is fixedly connected and communicated with the end of the hose 7 away from the cover body 2.

[0030] More specifically, when it is necessary to pump water to flush the inside of the reactor body 1, it is only necessary to turn on the water pump 14 through the controller. After the water pump 14 is started, the output end can transport the cleaning liquid to the water outlet pipe 15, and then the cleaning liquid can be transported to the hose 7 until it is sprayed out from the water spray mechanism later.

[0031] Please refer to Figure 2 and Figure 4 The water spraying mechanism includes a connecting ring 10 and a nozzle 11. The inner walls of the connecting ring 10 and the nozzle 11 are provided with a connected water inlet cavity 1001. The outer wall of the nozzle 11 is penetrated with a plurality of nozzles 1101 connected with the water inlet cavity 1001. The upper surface of the outer wall of the connecting ring 10 is fixedly connected to the end of the hose 7 away from the water tank 4, and the water inlet cavity 1001 is connected with the hose 7. The upper surface of the outer wall of the connecting ring 10 is also connected to the limit assembly. The nozzle 11 is sleeved and threadedly connected to the outer wall of the reciprocating screw 12.

[0032] More specifically, after water flows out of the hose 7, the cleaning liquid will enter the water inlet cavity 1001 in the connecting ring 10 and the nozzle 11, and finally be sprayed onto the inner wall of the reactor body 1 through a plurality of nozzles 1101, thereby completing the purpose of flushing the inner wall of the reactor body 1.

[0033] Please refer to Figure 2-Figure 4 The limiting assembly includes an inner rod 9 and a rectangular box 8. A circular cavity 802 runs through the upper surface of the rectangular box 8. The lower end of the inner rod 9 is fixedly connected to the upper surface of the outer wall of the connecting ring 10. The outer wall of the inner rod 9 is slidably connected to the inner wall of the circular cavity 802. The inner rod 9 and the rectangular box 8 are both sleeved on the outer wall of the hose 7. The outer wall of the rectangular box 8 is connected to the inner wall of the sliding opening 201.

[0034] More specifically, because the rectangular box 8 and the sliding opening 201 are both rectangular, the rectangular box 8 will not rotate inside the cover 2. Therefore, when the connecting ring 10 moves upward under the action of the nozzle 11 and the reciprocating screw 12, the inner rod 9 will gradually be received in the circular cavity 802, and after the inner rod 9 is completely received in the circular cavity 802, it will push the rectangular box 8 together and rise in the sliding opening 201, so it will not affect the normal lifting of the connecting ring 10. It should be particularly noted here that the rectangular box 8 can also be completely fixed on the cover 2, and it is only necessary to set a multi-stage inner rod 9 and rectangular box 8, which is not specifically limited.

[0035] Please refer to Figure 4A rectangular cavity 801 is opened in the middle of the circular cavity 802, and one end of the inner rod 9 located in the rectangular box 8 is fixedly connected to a rectangular block 17, and the outer wall of the rectangular block 17 is slidably connected to the inner wall of the rectangular cavity 801.

[0036] More specifically, by providing the rectangular cavity 801 and the rectangular block 17, the inner rod 9 can be prevented from shaking inside the rectangular box 8.

[0037] Please refer to Figure 2-Figure 4 The outer walls of the upper and lower ends of the rectangular box 8 are fixedly connected with anti-slip blocks 16, and the outer wall of the rectangular box 8 is slidably connected to the inner wall of the sliding opening 201. The adjacent sides of the two anti-slip blocks 16 are respectively against the inner and outer sides of the cover body 2, and the length and width of the two anti-slip blocks 16 are greater than the length and width of the rectangular box 8 and the sliding opening 201.

[0038] More specifically, by providing the anti-dropping block 16, the rectangular box 8 can be prevented from dropping out of the slide opening 201 during the lifting process.

[0039] Please refer to Figure 1 and Figure 2 A water inlet pipe 5 is fixedly connected to the upper surface of the water tank 4, and a drain pipe 6 is fixedly connected to the side wall of the lower end of the water tank 4. Both the water inlet pipe 5 and the drain pipe 6 are connected to the inside of the water tank 4, and a sealing cover is threadedly connected to the outer wall of the water inlet pipe 5, and a valve is arranged inside the drain pipe 6.

[0040] More specifically, by providing a water inlet pipe 5, cleaning liquid can be added to the water tank 4 when the cleaning liquid capacity inside the water tank 4 is insufficient; by providing a drain pipe 6, the cleaning liquid inside the water tank 4 can be discharged from here for replacement when it is excess or contaminated.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. 4- An energy-saving reactor for preparing trifluoromethylnicotinic acid, comprising a reactor body (1), a cover body (2) mounted on the reactor body (1), and a motor (3) mounted on the cover body (2), characterized in that: The output shaft of the motor (3) is fixedly connected to a reciprocating screw (12), the other end of the reciprocating screw (12) passes through the cover body (2) and is connected to a stirring rod (13), the upper surface of the cover body (2) is penetrated by a sliding opening (201), one side of the outer wall of the reactor body (1) is fixedly connected to a water tank (4), the inner wall of the water tank (4) is connected to a pumping mechanism, the other end of the pumping mechanism passes through the water tank (4) and is connected to a hose (7), the other end of the hose (7) passes through the sliding opening (201) and is connected to a water spraying mechanism, the other end of the water spraying mechanism is connected to the reciprocating screw (12), and the outer wall of the water spraying mechanism is also connected to a limit assembly, the other end of the limit assembly is connected to the sliding opening (201).

2. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 1, characterized in that: The water pumping mechanism comprises a water pump (14) and a water outlet pipe (15); the outer wall of the water pump (14) is fixedly connected to the bottom surface of the inner wall of the water tank (4); the output end of the water pump (14) is fixedly connected to and communicated with one end of the water outlet pipe (15); the other end of the water outlet pipe (15) passes through the water tank (4) and is fixedly connected to and communicated with one end of the hose (7) away from the cover body (2).

3. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 1, characterized in that: The water spray mechanism comprises a connecting ring (10) and a spray head (11); the inner walls of the connecting ring (10) and the spray head (11) are provided with a connected water inlet cavity (1001); the outer wall of the spray head (11) is provided with a plurality of spray ports (1101) connected with the water inlet cavity (1001); the upper surface of the outer wall of the connecting ring (10) is fixedly connected with an end of a hose (7) away from a water tank (4), and the water inlet cavity (1001) is connected with the hose (7); the upper surface of the outer wall of the connecting ring (10) is also connected with a limit assembly; the spray head (11) is sleeved and threadedly connected to the outer wall of a reciprocating screw (12).

4. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 3, characterized in that: The limit assembly comprises an inner rod (9) and a rectangular box (8); a circular cavity (802) passes through the upper surface of the rectangular box (8); the lower end of the inner rod (9) is fixedly connected to the upper surface of the outer wall of the connecting ring (10); the outer wall of the inner rod (9) is slidably connected to the inner wall of the circular cavity (802); the inner rod (9) and the rectangular box (8) are both sleeved on the outer wall of the hose (7); and the outer wall of the rectangular box (8) is connected to the inner wall of the sliding opening (201).

5. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 4, characterized in that: A rectangular cavity (801) is provided in the middle of the circular cavity (802); one end of the inner rod (9) located in the rectangular box (8) is fixedly connected to a rectangular block (17); and the outer wall of the rectangular block (17) is slidably connected to the inner wall of the rectangular cavity (801).

6. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 4, characterized in that: The outer walls of the upper and lower ends of the rectangular box (8) are fixedly connected with anti-slip blocks (16), the outer wall of the rectangular box (8) is slidably connected to the inner wall of the sliding opening (201), the adjacent sides of the two anti-slip blocks (16) are respectively abutted against the inner and outer sides of the cover body (2), and the length and width of the two anti-slip blocks (16) are greater than the length and width of the rectangular box (8) and the sliding opening (201).

7. The energy-saving reactor for preparing 4-trifluoromethylnicotinic acid according to claim 1, characterized in that: The upper surface of the water tank (4) is fixedly connected to a water inlet pipe (5), and the side wall of the lower end of the water tank (4) is fixedly connected to a drain pipe (6). Both the water inlet pipe (5) and the drain pipe (6) are connected to the interior of the water tank (4), and a sealing cover is threadedly connected to the outer wall of the water inlet pipe (5), and a valve is arranged inside the drain pipe (6).

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