Refining kettle for producing 2, 3-dichloropyridine

Abstract

The utility model discloses a refining kettle for producing 2, 3-dichloropyridine, which relates to the technical field of refining kettles and comprises a reaction kettle, a heating mechanism is mounted on the outer side of the reaction kettle, an air treatment mechanism is mounted on one side of the upper end of the reaction kettle, a shaft rod is mounted in the reaction kettle, a cleaning mechanism is mounted at the upper end of the shaft rod, and an inner cylinder is mounted in the middle of the shaft rod in the reaction kettle; a first spiral blade is installed on the outer side of the section, located in the inner cylinder, of the shaft rod, and a cleaning mechanism is installed at the bottom end of the shaft rod. Materials are driven by the second spiral blade to circularly flow in the inner cylinder, so that the materials at the bottom end in the reaction kettle rapidly turn over to the upper end of the reaction kettle, the contact area between the materials is increased, the treatment effect on the materials is improved, and after the materials are processed, the cleaning mechanism and the cleaning mechanism are matched for use, so that the material cleaning efficiency is improved. The interior of the reaction kettle is cleaned and washed, so that the interior of the reaction kettle is kept clean.

Description

Technical Field

[0001] The utility model belongs to the field of refining kettles, and specifically relates to a refining kettle used for producing 2,3-dichloropyridine. Background Art

[0002] 2,3-Dichloropyridine is an important intermediate, which is widely used in the fields of pesticides, medicines, fine chemicals, etc. In the production process of 2,3-dichloropyridine, a refining kettle is required for the reaction.

[0003] The Chinese patent number is CN202121363183.5. A chemical reactor comprises a reactor tank body. A stirring motor is provided on the top of the reactor tank body. The stirring motor is transmission-connected to a screw stirring mechanism in the reactor tank body. The screw stirring mechanism comprises an active stirring screw and a plurality of driven stirring screws. The upper end of the active screw of the active stirring screw is transmission-connected to the output shaft of the stirring motor through an active screw gear shaft. The active screw gear shaft is provided with a driving gear. The stirring motor drives the active screw to push the material in the central part of the reactor tank body downward. The upper end of the driven screw of the driven stirring screw is connected to the lower end of the driven screw gear shaft. The driven screw gear shaft is provided with a driven gear. The driven gear is transmission-engaged with the active gear. The active gear drives the driven screw to push the material on the side of the reactor tank body upward.

[0004] It is very inconvenient to clean and wash the inside of the reactor after use. Manual cleaning is not only unsafe but also time-consuming.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a refining kettle for the production of 2,3-dichloropyridine.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A refining kettle for producing 2,3-dichloropyridine comprises a reactor; a heating mechanism is installed at the outer side of the reactor, a discharge pipe is installed at the bottom of the reactor, an air handling mechanism is installed at one side of the upper end of the reactor, a shaft is installed inside the reactor, the upper end of the shaft passes through the reactor and is installed at the bottom of a power mechanism, the power mechanism is installed at the upper end of the reactor, a cleaning mechanism is installed at the upper end of the shaft, a stirring blade is installed at the bottom end of the shaft, a second spiral blade is installed at the inner section of the discharge pipe at the bottom end of the shaft, an inner cylinder is installed at the middle of the shaft inside the reactor, a first spiral blade is installed at the outer side of the inner section of the inner cylinder at the shaft, and a cleaning mechanism is installed at the bottom end of the shaft.

[0009] Optionally, the heating mechanism consists of an outer shell and a circulation pipe, the outer shell is installed outside the reactor, the circulation pipe is installed outside the reactor and located inside the outer shell, an inlet pipe is installed at the upper end of the circulation pipe, a water outlet pipe is installed at the bottom end of the circulation pipe, and an insulation board is installed inside the outer shell.

[0010] Optionally, the air handling mechanism is composed of a duct and a filter box, the filter box is installed at one side of the reactor, and the upper end of the filter box and the reactor are connected via a duct.

[0011] Optionally, a cover is installed at the upper end of the reactor, and supporting legs are installed around the bottom end of the reactor.

[0012] Optionally, the power mechanism consists of an electric motor and a transmission, the transmission is installed at the upper end of the reactor, and the electric motor is installed at the upper end of the transmission.

[0013] Optionally, the cleaning mechanism consists of a one-way bearing and a scraper, the one-way bearing is installed at the bottom end of the shaft, and the scraper is installed at the outer side of the one-way bearing.

[0014] Optionally, the cleaning mechanism consists of a water-guiding slip ring and a water-guiding pipe, the water-guiding pipe is installed on one side of the water-guiding slip ring, the upper end of the water-guiding slip ring is installed at the upper end inside the reactor, the rotating part of the water-guiding slip ring is installed on the upper side of the shaft, and multiple nozzles are installed around the water-guiding slip ring.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] 1. The first spiral blade drives the material to circulate in the inner cylinder, so that the material at the bottom of the reactor quickly surges to the upper end of the reactor, increasing the contact area between the materials and improving the material processing effect. After the material processing is completed, the cleaning mechanism and the washing mechanism are used in coordination to clean and rinse the inside of the reactor to keep the inside of the reactor clean.

[0017] 2. When the heating mechanism is in use, constant temperature water is introduced into the circulation pipe through the water inlet pipe, and the temperature inside the reactor is adjusted through the circulation pipe. The used water is discharged through the water outlet pipe, so as to facilitate the temperature adjustment inside the reactor.

[0018] 3. When the cleaning mechanism is in use, the shaft rotates in the opposite direction, the one-way bearing is locked, and the scraper is driven to rotate. The rotating scraper cleans the inner wall of the reactor during the rotation process. When the shaft rotates normally, the scraper does not work.

[0019] 4. When the cleaning mechanism is in use, the water pipe is connected to an external water pump. The water pump guides water into the water guide slip ring through the water pipe, and then guides water into the nozzle through the water guide slip ring. The nozzle is driven to rotate by the shaft, so that water is sprayed into the reactor through the rotating nozzle to clean the inside of the reactor.

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0023] Figure 2 It is a side view structural schematic diagram of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the shaft structure of an embodiment of the utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Reactor; 2. Cover; 3. Power mechanism; 4. Motor; 5. Transmission; 6. Cleaning mechanism; 7. Heating mechanism; 8. Casing; 9. Water inlet pipe; 10. Water outlet pipe; 11. Discharge pipe; 12. Air handling mechanism; 13. Filter box; 14. Conduit; 15. Water guide pipe; 16. Inner cylinder; 17. First spiral blade; 18. Cleaning mechanism; 19. Scraper; 20. Water guide slip ring; 21. Nozzle; 22. Stirring blade; 23. One-way bearing; 24. Second spiral blade; 25. Shaft; 26. Leg; 27. Heat insulation board; 28. Circulation pipe.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The utility model will now be described in further detail with reference to the accompanying drawings.

[0030] See also Figure 1-4 As shown, in this embodiment, a refining kettle for the production of 2,3-dichloropyridine is provided, including a reactor 1; a heating mechanism 7 is installed at the outer position of the reactor 1, a discharge pipe 11 is installed at the bottom end of the reactor 1, an air treatment mechanism 12 is installed at one side of the upper end of the reactor 1, a shaft 25 is installed inside the reactor 1, the upper end of the shaft 25 passes through the reactor 1 and is installed at the bottom end of the power mechanism 3, the power mechanism 3 is installed at the upper end of the reactor 1, a cleaning mechanism 6 is installed at the upper end of the shaft 25, a stirring blade 22 is installed at the bottom end of the shaft 25, a second spiral blade 24 is installed at the inner section of the discharge pipe 11 at the bottom end of the shaft 25, an inner cylinder 16 is installed at the middle position of the shaft 25 inside the reactor 1, a first spiral blade 17 is installed at the outer side of the inner section of the inner cylinder 16 of the shaft 25, and a cleaning mechanism 18 is installed at the bottom end of the shaft 25.

[0031] The application of one aspect of this embodiment is as follows: when in use, the material is introduced into the reactor 1 so that the material undergoes a chemical reaction inside the reactor 1. During the chemical reaction, the temperature inside the reactor 1 can be adjusted by the heating mechanism 7. The gas generated by the reaction is processed by the air treatment mechanism 12 to ensure the cleanliness of the air. During the reaction, the power mechanism 3 drives the shaft 25 to rotate. During the rotation, the shaft 25 can not only stir the material through the stirring blade 22, but also drive the material to circulate in the inner cylinder 16 through the first spiral blade 24, so that the material at the bottom end of the reactor 1 quickly surges to the upper end of the reactor 1, increasing the contact area between the materials and improving the processing effect of the materials. After the material processing is completed, the cleaning mechanism 18 and the cleaning mechanism 6 are used in coordination to clean and rinse the inside of the reactor 1 to keep the inside of the reactor 1 clean.

[0032] In this embodiment, the heating mechanism 7 is composed of an outer shell 8 and a circulation pipe 28. The outer shell 8 is installed at the outer side of the reactor 1, and the circulation pipe 28 is installed at the outer side of the reactor 1 and located inside the outer shell 8. An inlet pipe 9 is installed at the upper end of the circulation pipe 28, and an outlet pipe 10 is installed at the bottom end of the circulation pipe 28. An insulation board 27 is installed inside the outer shell 8. When in use, the heating mechanism 7 introduces constant temperature water into the circulation pipe 28 through the inlet pipe 9, and adjusts the temperature of the inside of the reactor 1 through the circulation pipe 28. The water after use is discharged through the outlet pipe 10, so as to facilitate the temperature adjustment of the inside of the reactor 1.

[0033] In this embodiment, the air handling mechanism 12 is composed of a duct 14 and a filter box 13. The filter box 13 is installed at one side of the reactor 1. The upper end of the filter box 13 and the reactor 1 are connected through the duct 14. During the use of the air handling mechanism 12, the gas inside the reactor 1 is guided to the inside of the filter box 13 through the duct 14, and the air is filtered through the filter material inside the filter box 13, thereby ensuring the cleanliness of the exported air.

[0034] In this embodiment, a cover 2 is installed at the upper end of the reactor 1, and legs 26 are installed around the bottom of the reactor 1. The cover 2 is used to seal the interior of the reactor 1, and the legs 26 are used to support the reactor 1.

[0035] In this embodiment, the power mechanism 3 is composed of a motor 4 and a transmission 5. The transmission 5 is installed at the upper end of the reactor 1, and the motor 4 is installed at the upper end of the transmission 5. When the power mechanism 3 is in use, the motor 4 is turned on by a switch, and the motor 4 will rotate. The rotation speed of the motor 4 is integrated through the transmission 5 and then output.

[0036] In this embodiment, the cleaning mechanism 18 is composed of a one-way bearing 23 and a scraper 19. The one-way bearing 23 is installed at the bottom end of the shaft 25, and the scraper 19 is installed at the outer side of the one-way bearing 23. When the cleaning mechanism 18 is in use, the shaft 25 rotates in the opposite direction, the one-way bearing 23 is locked, and the scraper 19 is driven to rotate. The rotating scraper 19 cleans the inner wall of the reactor 1 during the rotation process. When the shaft 25 rotates normally, the scraper 19 does not work.

[0037] In this embodiment, the cleaning mechanism 6 is composed of a water guide ring 20 and a water guide pipe 15. The water guide pipe 15 is installed at one side of the water guide ring 20, and the upper end of the water guide ring 20 is installed at the upper end of the reactor 1. The rotating part of the water guide ring 20 is installed on the upper side of the shaft 25. A plurality of nozzles 21 are installed around the water guide ring 20. When the cleaning mechanism 6 is in use, the water guide pipe 15 is connected to an external water pump, and the water pump guides water into the water guide ring 20 through the water guide pipe 15, and guides water into the nozzle 21 through the water guide ring 20. The nozzle 21 is driven to rotate through the shaft 25, so that water is sprayed into the reactor 1 through the rotating nozzle 21 to clean the reactor 1.

[0038] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A refining kettle for the production of 2,3-dichloropyridine, characterized in that: The invention comprises a reactor (1); a heating mechanism (7) is installed at the outer side of the reactor (1); a discharge pipe (11) is installed at the bottom of the reactor (1); an air treatment mechanism (12) is installed at one side of the upper end of the reactor (1); a shaft (25) is installed inside the reactor (1); the upper end of the shaft (25) passes through the reactor (1) and is installed at the bottom of a power mechanism (3); the power mechanism (3) is installed at the upper end of the reactor (1); the shaft (25) A cleaning mechanism (6) is installed at the upper end, a stirring blade (22) is installed at the lower end of the shaft (25), a second spiral blade (24) is installed at the lower end of the shaft (25) located in the inner section of the discharge pipe (11), an inner cylinder (16) is installed in the middle of the shaft (25) inside the reactor (1), a first spiral blade (17) is installed at the outer side of the inner section of the inner cylinder (16) of the shaft (25), and a cleaning mechanism (18) is installed at the lower end of the shaft (25).

2. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The temperature raising mechanism (7) is composed of an outer shell (8) and a circulation pipe (28); the outer shell (8) is installed at an outer position of the reaction kettle (1); the circulation pipe (28) is installed at an outer position of the reaction kettle (1) and located inside the outer shell (8); a water inlet pipe (9) is installed at an upper end of the circulation pipe (28); a water outlet pipe (10) is installed at a lower end of the circulation pipe (28); and a heat insulation board (27) is installed inside the outer shell (8).

3. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The air handling mechanism (12) is composed of a conduit (14) and a filter box (13); the filter box (13) is installed on one side of the reaction kettle (1); the upper end of the filter box (13) and the reaction kettle (1) are connected via the conduit (14).

4. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: A sealing cover (2) is installed at the upper end of the reaction kettle (1), and supporting legs (26) are installed around the bottom end of the reaction kettle (1).

5. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The power mechanism (3) is composed of an electric motor (4) and a transmission (5), wherein the transmission (5) is mounted at the upper end of the reaction kettle (1), and the electric motor (4) is mounted at the upper end of the transmission (5).

6. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The cleaning mechanism (18) is composed of a one-way bearing (23) and a scraper (19); the one-way bearing (23) is installed at the bottom end of the shaft (25); and the scraper (19) is installed at the outer side of the one-way bearing (23).

7. A refining kettle for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The cleaning mechanism (6) is composed of a water guide ring (20) and a water guide pipe (15). The water guide pipe (15) is installed at one side of the water guide ring (20). The upper end of the water guide ring (20) is installed at the upper end of the reactor (1). The rotating part of the water guide ring (20) is installed on the upper side of the shaft (25). A plurality of spray heads (21) are installed around the water guide ring (20).

Images