A condensation slicing device for 2,3-dichloropyridine production

Abstract

This invention relates to the field of chemical equipment technology, and in particular discloses a condensing and slicing device for the production of 2,3-dichloropyridine. The device includes a frame, a condensing chamber, a pressing assembly, a filling assembly, a cutting assembly, and a receiving assembly. The condensing chamber is located in the middle of the frame. The pressing assembly and the filling assembly are both mounted on the frame. The cutting assembly and the receiving assembly are sequentially mounted on the frame below the condensing chamber. Cooling water inlets and outlets are located at both ends of the condensing chamber. Multiple material cylinders are evenly distributed in a matrix on the condensing chamber, penetrating vertically through it. This invention uses the filling assembly to inject liquid 2,3-dichloropyridine into the material cylinders. The condensing chamber solidifies the liquid 2,3-dichloropyridine. The pressing assembly compacts the 2,3-dichloropyridine and sequentially dispenses it in measured quantities. The cutting assembly slices the 2,3-dichloropyridine. The sliced ​​2,3-dichloropyridine is collected by vibration through the receiving assembly, facilitating packaging. The finished product has high quality, ensures continuous automated production, and is easy to promote.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and in particular to a condenser slicing device for the production of 2,3-dichloropyridine. Background Technology

[0002] 2,3-Dichloropyridine is an important organic synthesis intermediate widely used in organic synthesis reactions, such as catalyst preparation and the synthesis of organic compounds. It has broad applications in the preparation of pesticides, dyes, photosensitizers, and pharmaceuticals. The preparation of 2,3-dichloropyridine can be achieved using the 2,3,6-trichloropyridine reduction method. This process requires relatively low temperatures and uses H2 as a reducing agent to reduce 2,3,6-trichloropyridine. Carbonic acid needs to be added dropwise during the reduction process. Alkaline reagents such as sodium are used to increase the reaction rate, and noble metal catalysts such as platinum and palladium are required in the reaction process. The 2,3-dichloropyridine product obtained in this preparation process is in liquid state. Since the melting point of 2,3-dichloropyridine is 64-67℃, it crystallizes into a solid state when the temperature drops to room temperature. Therefore, in order to prevent 2,3-dichloropyridine from cooling into a solid state in the storage device, it is necessary to process the liquid 2,3-dichloropyridine into fragments in time for easy subsequent packaging, transportation and sales at room temperature.

[0003] Existing technologies for condensing 2,3-dichloropyridine mostly rely on natural cooling precipitation, resulting in low crystallization rates and waste of raw materials. Furthermore, the separate steps of cooling and slicing lead to poor versatility and low processing efficiency.

[0004] Therefore, it is necessary to propose an improvement to the condenser slicing apparatus for the production of 2,3-dichloropyridine in order to overcome the shortcomings of the prior art. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and provide a condensation slicing apparatus for the production of 2,3-dichloropyridine.

[0006] The technical solution of this invention is: A condensing and slicing device for the production of 2,3-dichloropyridine includes a frame, a condensing chamber, a pressing assembly, a filling assembly, a cutting assembly, and a receiving assembly. The condensing chamber is located in the middle of the frame. The pressing assembly and the filling assembly are both mounted on the frame and located above the condensing chamber. The cutting assembly and the receiving assembly are sequentially mounted on the frame below the condensing chamber. The condensing chamber is hollow inside, and cooling water inlet and cooling water outlet are respectively provided at both ends of the condensing chamber. Multiple material cylinders are evenly distributed in a matrix on the condensing chamber, penetrating the condensing chamber vertically and vertically, but not communicating with the interior of the condensing chamber.

[0007] Preferably, the pressing assembly includes a screw jack and a pressing plate. The screw jack is located at the top of the frame, and the pressing plate is connected to the output end of the screw jack. Multiple pressing rods adapted to the material cylinder are evenly distributed at the bottom of the pressing plate, and multiple guide rods are symmetrically arranged at the top of the pressing plate. The guide rods are slidably mounted on the frame.

[0008] Preferably, the filling assembly includes a first servo motor, a first lead screw pair, and linear guides. The first servo motor is mounted on the frame, the first lead screw pair is rotatably mounted on the frame and is driven by the first servo motor, two linear guides are mounted on both sides of the frame, a movable plate is connected between the sliders of the two linear guides, the movable plate is driven by the first lead screw pair, two slide cylinders are arranged side by side along the length direction on the movable plate, a fixed plate is provided on the slide seat of the two slide cylinders, and multiple filling pipes are evenly distributed along the length direction on the fixed plate. A flow meter and a solenoid valve are connected sequentially to the filling pipes.

[0009] Preferably, the cutter assembly includes a second servo motor, a second lead screw pair, a guide shaft, a cutter connecting plate, and a slicing blade. The second servo motor is mounted on the frame, and the second lead screw and guide shaft are respectively mounted on both sides of the frame. The second servo motor is drivenly connected to the second lead screw pair. One end of the cutter connecting plate is drivenly connected to the second lead screw pair, and the other end of the cutter connecting plate is slidably connected to the guide shaft. The slicing blade is floatingly connected to the cutter connecting plate through an elastic element.

[0010] Preferably, the elastic element is a spring, and the slicing blade is provided with several support rods. The spring is sleeved on the support rods, with one end of the spring abutting against the slicing blade and the other end of the spring abutting against the slicing blade connecting plate.

[0011] Preferably, the receiving assembly includes a lifting mechanism, a lifting plate, and a receiving plate. Two lifting mechanisms are arranged side by side on the frame, and the lifting plate is arranged on the lifting mechanism. A tilting cylinder is provided at one end of the lifting plate. The fixed end of the tilting cylinder is hinged to the lifting plate, and the extended end of the tilting cylinder is hinged to the receiving plate. The end of the receiving plate away from the tilting cylinder is hinged to the lifting plate, and a receiving box is provided on the frame near this end.

[0012] Preferably, the lifting mechanism includes a lifting cylinder, the fixed end of which is mounted on the frame via a cylinder bracket, the extended end of which is connected to the lifting plate, and guide rods are provided on both sides of the cylinder bracket, the guide rods penetrating the cylinder bracket and connecting to the lifting plate.

[0013] Preferably, a scraping mechanism is provided on the upper surface of the condensing box. The scraping mechanism includes a scraper, a third servo motor and two drive shafts. Vertical plates are provided on both sides of the condensing box in the width direction. The two drive shafts are rotatably mounted at both ends of the vertical plates. The third servo motor is mounted on the vertical plate and is connected to one of the drive shafts. Synchronous pulleys are fixed at both ends of the drive shafts. A synchronous belt is provided between the synchronous pulleys. The two ends of the scraper are respectively connected to the two synchronous belts. A discharge channel and a slag receiving box are provided on the frame and on one side of the condensing box.

[0014] Preferably, the lifting plate has several support blocks on its surface near the tilting cylinder.

[0015] Preferably, a storage box is provided on one side of the top of the frame, and multiple discharge pipes are evenly distributed at the bottom of the storage box, with each discharge pipe corresponding to and connected to a filling pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a lifting mechanism to bring the receiving assembly close to the condensing chamber, thus sealing the material cylinder. Through the cooperation of the filling and receiving assemblies, liquid 2,3-dichloropyridine is quantitatively injected into the cylinder. Cooling water is circulated into the condensing chamber to rapidly solidify the liquid 2,3-dichloropyridine, resulting in high condensation efficiency, improved raw material utilization, and reduced waste. The solidified 2,3-dichloropyridine is compacted through the cooperation of the receiving and pressing assemblies. After compaction, the lifting mechanism lowers the receiving assembly, while the pressing assembly sequentially feeds the solidified 2,3-dichloropyridine out of the cylinder. During this process, the cutting assembly reciprocates, slicing the 2,3-dichloropyridine. The sliced ​​2,3-dichloropyridine is collected by vibration through the receiving assembly for easy packaging, resulting in high-quality finished products. This invention ensures continuous automated production, high processing efficiency, and ease of widespread adoption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the main structure of the present invention; Figure 4 This is a partially enlarged structural diagram of point A in the present invention; Figure 5 This is a schematic diagram of the scraping component structure of the present invention.

[0018] The components include: 1. Frame; 2. Condensation box; 3. Material cylinder; 4. Cooling water inlet; 5. Cooling water outlet; 6. Ball valve; 7. Screw jack; 8. Pressure plate; 9. Pressure rod; 10. Guide rod; 11. First servo motor; 12. First lead screw pair; 13. Linear guide rail; 14. Moving plate; 15. Slide cylinder; 16. Fixed plate; 17. Filling pipe; 18. Flow meter; 19. Solenoid valve; 20. Second servo motor; 21. Second lead screw pair; 22. Guide... 23. Shaft; 24. Cutter connecting plate; 25. Slicing blade; 26. Elastic element; 27. Support rod; 28. Lifting cylinder; 29. ​​Lifting plate; 30. Receiving plate; 31. Cylinder bracket; 32. Tilting cylinder; 33. Guide rod; 34. Support block; 35. Scraper; 36. Third servo motor; 37. Drive shaft; 38. Vertical plate; 39. Synchronous pulley; 40. Synchronous belt; 41. Receiving box; 42. Discharge channel; 43. Slag receiving box; 44. Storage box; 45. Discharge pipe. Detailed Implementation

[0019] To make the technical means, technical features, inventive purpose and technical effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0020] like Figures 1-3 As shown, a condensing and slicing device for the production of 2,3-dichloropyridine includes a frame 1, a condensing chamber 2, a pressing assembly, a filling assembly, a cutting assembly, a receiving assembly, and a scraping assembly. The frame 1 is assembled from profiles, serving as a sturdy and reliable base for installation. The condensing chamber 2 is installed in the middle of the frame 1 and is machined into a hollow structure. Cooling water inlets 4 and cooling water outlets 5 are respectively provided at both ends of the condensing chamber 2 for introducing cooling water into the condensing chamber 2 and realizing the circulation of cooling water. For easy control, ball valves 6 are connected to both the cooling water inlet 4 and the cooling water outlet 5. Multiple material cylinders 3 are installed inside the condensing chamber 2, and the multiple material cylinders 3 are evenly distributed in a matrix structure on the condensing chamber 2. The material cylinders 3 penetrate the condensing chamber 2 vertically but are not connected to the interior of the condensing chamber 2. The pressing assembly and the filling assembly are both installed on the frame 1 and located above the condensing chamber 2. The cutting assembly and the receiving assembly are sequentially connected to the frame 1 below the condensing chamber 2.

[0021] like Figures 1-3As shown, the filling assembly is used to sequentially inject liquid 2,3-dichloropyridine into the feed cylinder 3. The filling assembly includes a first servo motor 11, a first lead screw pair 12, and linear guide rails 13. The first servo motor 11 is mounted on the frame 1, and the first lead screw pair 12 is rotatably mounted on the frame 1. The first lead screw pair 12 is connected to the output shaft of the first servo motor 11 via a coupling, and the first lead screw pair 12 is driven to rotate by the first servo motor 11. There are two linear guide rails 13, which are mounted parallel to each other on both sides of the frame 1. A moving plate 14 is connected between the sliders of the two linear guide rails 13. The moving plate 14 is connected to the first lead screw pair 12. The rotation of the first lead screw pair 12 drives the moving plate 14 to move along the linear guide rails 13. Two sliding cylinders 15 are mounted side by side along the length of the moving plate 14. A fixed plate 16 is connected to the sliding seat of the two sliding cylinders 15. Multiple filling pipes 17 are evenly distributed along the length of the fixed plate 16. The filling pipes 17 are adapted to the material cylinder 3. A storage tank 43 is installed on one side of the top of the frame 1 for storing liquid 2,3-dichloropyridine. Multiple discharge pipes 44 are evenly distributed at the bottom of the storage tank 43. The discharge pipes 44 correspond one-to-one with the filling pipes 17. The discharge pipes 44 and the filling pipes 17 are connected to each other by a retractable flexible hose (not shown in the figure). To facilitate the control of the filling, a flow meter 18 and a solenoid valve 19 are connected in sequence to the filling pipe 17. The flow meter 18 is used to control the filling amount, and the solenoid valve 19 is used to control the opening and closing of the filling pipe 17.

[0022] like Figures 1-3 As shown, the pressing assembly includes a screw jack 7 and a pressing plate 8. The screw jack 7 is installed on the top of the frame 1. The pressing plate 8 is connected to the output end of the screw jack 7. Multiple pressing rods 9 are evenly distributed in a matrix at the bottom of the pressing plate 8. The pressing rods 9 are adapted to the material cylinder 3. Multiple guide rods 10 are symmetrically connected to the pressing plate 8. The guide rods 10 are slidably connected to the frame 1. The screw jack 7 drives the pressing plate 8 to move up and down. The guide rods 10 guide the movement of the pressing plate 8.

[0023] like Figure 3 and Figure 4As shown, the cutter assembly includes a second servo motor 20, a second lead screw pair 21, a guide shaft 22, a cutter connecting plate 23, and a slicing blade 24. The second servo motor 20 is mounted on the frame 1. The second lead screw and guide shaft 22 are respectively mounted on both sides of the frame 1. The output shaft of the second servo motor 20 is connected to the second lead screw pair 21 via a coupling to drive the second lead screw pair 21 to rotate relative to the frame 1. One end of the cutter connecting plate 23 is connected to the second lead screw pair 21, and the other end is slidably connected to the guide shaft 22. The rotation of the second lead screw pair 21 drives the cutter connecting plate 23 to rotate relative to the frame 1. The frame 1 moves, and the guide shaft 22 supports and guides the movement of the cutter connecting plate 23. The slicing blade 24 is connected to the cutter connecting plate 23 through an elastic element 25. Specifically, the elastic element 25 is a spring. Several support rods 26 are connected to the slicing blade 24. The springs are fitted on the support rods 26. One end of the spring abuts against the cutter blade, and the other end of the spring abuts against the cutter connecting plate 23. The spring force makes the upper surface of the slicing blade 24 in close contact with the lower surface of the condenser box 2. By compressing the spring, the slicing blade and the condenser box 2 can float, avoiding damage caused by hard contact.

[0024] like Figure 2 and Figure 3 As shown, the receiving assembly includes a lifting mechanism, a lifting plate 28, and a receiving plate 29. There are two lifting mechanisms, mounted side-by-side on the frame 1 to ensure balanced lifting force. Each lifting mechanism includes a lifting cylinder 27. The fixed end of the lifting cylinder 27 is connected to the frame 1 via a cylinder bracket 30. The extended end of the lifting cylinder 27 is connected to the lifting plate 28. Guide rods 32 are installed on both sides of the lifting cylinder 27 on the cylinder bracket 30, penetrating the cylinder bracket 30 and connecting to the lifting plate 28 to guide the lifting and lowering of the lifting plate 28, ensuring smooth lifting. A tilting cylinder 31 is installed at one end of the lifting plate 28. The fixed end of the tilting cylinder 31 is hinged to the lifting plate 28. The extended end of the receiving plate 29 is hinged to the receiving plate 29. The end of the receiving plate 29 away from the flipping cylinder 31 is hinged to the lifting plate 28. By switching the extension and retraction of the flipping cylinder 31, the receiving plate 29 is driven to flip up and down around the hinge point with the lifting plate 28, so as to realize the vibration discharge of the sliced ​​2,3-dichloropyridine. Several support blocks 33 are installed on the upper surface of the end of the lifting plate 28 near the flipping cylinder 31. When the flipping cylinder 31 is retracted, the receiving plate 29 is supported on the support blocks 33. When the receiving plate 29 is under force, the support blocks 33 bear the force and the flipping cylinder 31 is not under force, thus protecting the flipping cylinder 31. A receiving box 40 is installed on the frame 1 near the end of the receiving plate 29 that is hinged to the lifting plate 28, which is used to receive the cured and sliced ​​2,3-dichloropyridine.

[0025] like Figure 5As shown, the scraping mechanism is installed on the upper surface of the condenser 2. The scraping mechanism includes a scraper 34, a third servo motor 35, and two drive shafts 36. Vertical plates 37 are installed on both sides of the condenser 2 in the width direction. The two drive shafts 36 are installed between the two vertical plates 37 and are located at opposite ends of the vertical plates 37. The third servo motor 35 is installed on the outer side of one end of one of the vertical plates 37 and is connected to the drive shaft 36 installed at that end. Synchronous pulleys 38 are fixedly connected to both ends of each drive shaft 36. Two synchronous pulleys on the same side of the two drive shafts 36 are also connected to the drive shafts 36. A synchronous belt 39 is wound between 38. The two ends of the scraper 34 are respectively connected to the two synchronous belts 39. As the synchronous belts 39 move, the lower end face of the scraper 34 slides in contact with the upper surface of the condenser box 2. To ensure the smooth movement of the scraper 34, guide grooves are machined on the opposite sides of the two vertical plates 37. The two ends of the scraper 34 are slidably connected in the guide grooves. A discharge channel 41 and a slag receiving box 42 are installed on the frame 1 and on one side of the condenser box 2. The discharge channel 41 is installed at an inclination. Specifically, the discharge channel 41 is inclined downward from the condenser box 2 towards the slag receiving box 42.

[0026] The working principle of this invention is: 1. Liquid 2,3-dichloropyridine is placed in the storage tank 43. The tilting cylinder 31 is in the retracted state. The receiving plate 29 is parallel to the lifting plate 28. The lifting cylinder 27 is activated, which pushes the receiving plate 29 and the lifting plate 28 to rise, so that the receiving plate 29 is pressed against the lower surface of the condenser 2, sealing the bottom of the material cylinder 3. The cooling water inlet 4 is connected to the external cooling water. 2. Start the first servo motor 11, which drives the first lead screw pair 12 to rotate, thereby driving the moving plate 14 to move, so that the filling tube 17 moves above the material cylinder 3. The slide cylinder 15 is activated, driving the filling tube 17 to move closer to the material cylinder 3. The solenoid valve 19 is opened, and liquid 2,3-dichloropyridine flows through the discharge pipe 44 to the filling tube 17 and is added into the material cylinder 3. The amount of filling is measured by the flow meter 18, thereby controlling the opening and closing of the solenoid valve 19. After one row of material cylinders 3 is filled, the solenoid valve 19 is opened, the slide cylinder 15 drives the filling tube 17 to rise and reset. The first servo motor 11 drives the filling tube 17 to move sequentially. The action is repeated to complete the filling of multiple material cylinders 3. The first servo motor 11 drives the filling tube 17 to reset. 3. The third servo motor 35 drives the transmission shaft 36 to rotate. Through the synchronous belt 39 between the synchronous pulleys 38 installed on the two transmission shafts 36, the scraper 34 moves. The scraper 34 slides in contact with the condenser 2 to scrape off the excess liquid 2,3-dichloropyridine on the surface of the condenser 2. The liquid 2,3-dichloropyridine flows into the slag receiving box 42 through the discharge channel 41 to avoid the spilled liquid 2,3-dichloropyridine from affecting the next filling and to ensure the quality of the finished product. 4. Cooling water enters the condenser 2 through cooling water inlet 4. The liquid 2,3-dichloropyridine in the barrel 3 is condensed into a solid. The screw jack 7 is started. The screw jack 7 drives the pressing plate 8 to descend. The pressure rod 9 is inserted into the barrel to compact the solidified 2,3-dichloropyridine in the barrel 3. 5. The lifting cylinder 27 is reset, the receiving plate 29 is lowered, and the screw jack 7 moves in jogs to push out the solidified and compacted 2,3-dichloropyridine in the barrel in sequence to a certain displacement. The second servo motor 20 drives the slicing blade 24 to move back and forth. During the movement, the pushed-out 2,3-dichloropyridine is sliced. Both sides of the slicing blade 24 are machined with cutting edges. The slicing blade 24 can perform slicing operations during the back and forth movement, thus improving work efficiency. 6. The 2,3-dichloropyridine cut off by the slicing blade 24 falls onto the receiving plate 29. The rotating cylinder 31 is activated and switches between the extended and retracted states, causing the receiving plate 29 to rotate around its hinge point with the lifting plate 28, generating vibration and causing the 2,3-dichloropyridine tablets on the receiving plate 29 to vibrate and slide into the receiving box 40.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the claims of this invention should fall within the technical scope of this invention.

Claims

1. A condensing and slicing device for 2,3-dichloropyridine production, characterized by: The assembly includes a frame (1), a condenser (2), a pressing assembly, a filling assembly, a cutting assembly, and a receiving assembly. The condenser (2) is located in the middle of the frame (1). The pressing assembly and the filling assembly are both located on the frame (1) and above the condenser (2). The cutting assembly and the receiving assembly are sequentially located on the frame (1) below the condenser (2). The condenser (2) is hollow inside. Cooling water inlet (4) and cooling water outlet (5) are respectively provided at both ends of the condenser (2). Multiple material cylinders (3) are evenly distributed in a matrix on the condenser (2). The material cylinders (3) penetrate the condenser (2) vertically and vertically, and are not connected to the interior of the condenser (2). The receiving assembly includes a lifting mechanism, a lifting plate (28), and a receiving plate (29). The two lifting mechanisms are arranged side by side on the frame (1). The lifting plate (28) is arranged on the lifting mechanism. A tilting cylinder (31) is provided at one end of the lifting plate (28). The fixed end of the tilting cylinder (31) is hinged to the lifting plate (28). The extended end of the tilting cylinder (31) is hinged to the receiving plate (29). The end of the receiving plate (29) away from the tilting cylinder (31) is hinged to the lifting plate (28), and a receiving box (40) is provided on the frame (1) near this end. The lifting mechanism includes a lifting cylinder (27). The fixed end of the lifting cylinder (27) is mounted on the frame (1) via a cylinder bracket (30). The extended end of the lifting cylinder (27) is connected to the lifting plate (28). Guide rods (32) are provided on both sides of the cylinder bracket (30) and located on both sides of the lifting cylinder (27). The guide rods (32) penetrate the cylinder bracket (30) and are connected to the lifting plate (28). The lifting plate (28) has several support blocks (33) on its surface near the tilting cylinder (31).

2. The condensation slicing device for 2,3-dichloropyridine production according to claim 1, characterized by: The pressing assembly includes a screw jack (7) and a pressing plate (8). The screw jack (7) is located on the top of the frame (1). The pressing plate (8) is connected to the output end of the screw jack (7). Multiple pressing rods (9) that are compatible with the material cylinder (3) are evenly distributed on the bottom of the pressing plate (8). Multiple guide rods (10) are symmetrically arranged on the top of the pressing plate (8). The guide rods (10) are slidably arranged on the frame (1).

3. The condensation slicing device for 2,3-dichloropyridine production according to claim 1, characterized by: The filling assembly includes a first servo motor (11), a first lead screw pair (12), and linear guides (13). The first servo motor (11) is mounted on the frame (1). The first lead screw pair (12) is rotatably mounted on the frame (1) and is connected to the first servo motor (11) in a transmission connection. The two linear guides (13) are mounted on both sides of the frame (1). A moving plate (14) is connected between the sliders of the two linear guides (13). The moving plate (14) is connected to the first lead screw pair (12) in a transmission connection. Two sliding cylinders (15) are arranged side by side on the moving plate (14) along the length direction. A fixed plate (16) is arranged on the slide of the two sliding cylinders (15). Multiple filling pipes (17) are evenly distributed on the fixed plate (16) along the length direction. A flow meter (18) and a solenoid valve (19) are connected to the filling pipes (17) in sequence.

4. The condensation slicing device for 2,3-dichloropyridine production according to claim 1, characterized by: The cutting blade assembly includes a second servo motor (20), a second lead screw pair (21), a guide shaft (22), a cutting blade connecting plate (23), and a slicing blade (24). The second servo motor (20) is mounted on the frame (1), and the second lead screw and the guide shaft (22) are respectively mounted on both sides of the frame (1). The second servo motor (20) is connected to the second lead screw pair (21) for transmission. One end of the cutting blade connecting plate (23) is connected to the second lead screw pair (21) for transmission, and the other end of the cutting blade connecting plate (23) is slidably connected to the guide shaft (22). The slicing blade (24) is floatingly connected to the cutting blade connecting plate (23) through an elastic element (25).

5. The condenser slicing apparatus for the production of 2,3-dichloropyridine according to claim 4, characterized in that: The elastic element (25) is a spring. Several support rods (26) are provided on the slicing blade (24). The spring is sleeved on the support rods (26). One end of the spring abuts against the slicing blade (24), and the other end of the spring abuts against the slicing blade connecting plate (23).

6. The condenser slicing apparatus for the production of 2,3-dichloropyridine according to claim 1, characterized in that: The upper surface of the condenser (2) is provided with a scraping mechanism, which includes a scraper (34), a third servo motor (35) and two drive shafts (36). The condenser (2) is provided with upright plates (37) on both sides in the width direction. The two drive shafts (36) are rotatably provided at both ends of the upright plates (37). The third servo motor (35) is provided on the upright plate (37) and is connected to one of the drive shafts (36). Both ends of the drive shaft (36) are fixed with synchronous pulleys (38). A synchronous belt (39) is provided between the synchronous pulleys (38). The two ends of the scraper (34) are respectively connected to the two synchronous belts (39). The frame (1) is provided with a discharge channel (41) and a slag receiving box (42) on one side of the condenser (2).

7. The condenser slicing apparatus for the production of 2,3-dichloropyridine according to claim 3, characterized in that: A storage box (43) is provided on one side of the top of the frame (1). Multiple discharge pipes (44) are evenly distributed at the bottom of the storage box (43). The discharge pipes (44) are connected to the filling pipes (17) one by one.

Images