A distillation and condensation apparatus for the production of pyridine chloride

Abstract

This invention belongs to the technical field of pyridine chloride production equipment, specifically a distillation and condensation device for pyridine chloride production. The device includes a condenser, which comprises an outer tank with an inlet pipe, an outlet pipe, a water inlet pipe, and a water outlet pipe externally. A guide pipe is fixedly connected to the bottom of the outer tank. Several condensing tubes are evenly and fixedly connected inside the outer tank, and are spirally twisted. By controlling the outlet pipe with a pusher plate, the condensation chambers on both sides of the pusher plate alternately discharge and introduce distillation steam. Distillation steam is introduced when the condensation chamber is expanded and discharged when it is contracted. This alternating introduction and discharge of distillation steam prolongs the residence time of the distillation steam inside the condensation chamber, improves the contact effect between the distillation steam and the condensing tubes, thereby improving the condensation effect of the distillation steam, avoiding waste of the product pyridine chloride, and increasing the yield of the product pyridine chloride.

Description

Technical Field

[0001] This invention belongs to the technical field of pyridine chloride production equipment, specifically a distillation and condensation device for pyridine chloride production. Background Technology

[0002] In the production of pyridine chloride, separation and purification of pyridine chloride typically require distillation and condensation. This involves heating the pyridine chloride feedstock and purifying it based on the varying volatility of its components. During distillation and condensation, condensate flows within the condenser, and then distillation vapor is introduced for further condensation.

[0003] A search revealed that Chinese patent CN117282117A discloses a two-stage condensation device for distillation, comprising a primary condensation mechanism, a material receiving mechanism at the bottom of the primary condensation mechanism, a secondary condensation mechanism at one end of the material receiving mechanism, and a condensate recovery mechanism at one end of the secondary condensation mechanism. The primary condensation mechanism includes a first housing, with a first end cap mounted on one end of the first housing. A support frame is fixedly mounted on one side of the first end cap, and a stepper motor is mounted on one end of the support frame. The output end of the stepper motor is fixedly connected to the other end of one of the sprockets. Sealing plates are fixedly mounted on both ends of the inner wall of the first housing, and multiple evenly distributed condensation tubes are fixedly connected between the two sealing plates. A second rubber ring is fitted on the outer wall of each condensation tube, and the two sides of the outer wall of each drive screw are rotatably connected to the surfaces of the two sealing plates, respectively. The primary condensation mechanism works in conjunction with the material receiving mechanism. The sprocket-connected shaft is connected to the drive screw, and the drive screw is threaded to a movable disc connected to a first rubber ring. A second rubber ring on the movable disc is fitted into the condensation tubes. The first housing is connected to multiple second one-way valves, and the receiving hopper connected to the receiving box is connected to the storage box. The storage box is equipped with a liquid level sensor. During product condensation, the residual product inside the first housing and on the surface of the condensation tubes can be quickly pushed off, thereby ensuring rapid collection of chemical products, avoiding product waste, and improving product yield.

[0004] In existing condensation devices, the overall flow path of the distillation vapor is typically short. Furthermore, when the distillation vapor condenses on the surface of the condenser tubes to form a liquid film, the liquid obstructs subsequent distillation vapor flow, affecting the condensation effect and reducing condensation efficiency. In the aforementioned devices, because the overall distillation vapor flow is vertical, the residence time of the vapor within the first shell is limited, further reducing condensation efficiency. Additionally, while the moving disc can scrape off product from the condenser tube surface during its movement, the pressure changes along the direction of movement result in differences in condensation effects before and after the disc. Moreover, during condensation, the gases before and after the disc do not mix, resulting in only a single condensation, leading to poor condensation of the distillation vapor within the first shell. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a distillation and condensation apparatus for the production of pyridine chloride, which has the advantages of good condensation effect and high condensation efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A distillation and condensation apparatus for the production of pyridine chloride includes a condenser, the condenser comprising:

[0008] The outer tank is equipped with an air inlet pipe, an air outlet pipe, a water inlet pipe, and a water outlet pipe on its exterior. A guide pipe is fixedly connected to the bottom side of the outer tank.

[0009] The condenser tubes are arranged in several units and are evenly and fixedly connected to the inside of the outer tank. The condenser tubes are spirally twisted. A flow divider ring and a return ring are fixedly connected to both sides of the condenser tubes. The water inlet pipe is connected to the flow divider ring and the water outlet pipe is connected to the return ring.

[0010] The propulsion mechanism is movably connected to the inside of the outer tank. The propulsion mechanism includes a propulsion plate with several discharge holes. The propulsion plate is slidably connected to several condenser tubes through the discharge holes.

[0011] The drive screw is rotatably connected inside the outer tank and threadedly connected to the push plate. A drive motor is installed on the outside of the drive screw.

[0012] Preferably, a distillation column is provided outside the inlet pipe of the condenser, a reboiler is provided at the bottom of the distillation column, a reflux duct is provided outside the guide pipe of the condenser, an extraction tank is provided outside the reflux duct, and a raw material tank is provided outside the distillation column; it also includes a power cabinet for control circuit.

[0013] Preferably, the air inlet pipe is split into two air inlet branches via a three-way valve, with each branch connecting to one side of the outer tank. Each of the two air inlet branches is equipped with an air inlet valve. Similarly, the air outlet pipe is split into two air outlet branches via a three-way valve, with each branch connecting to one side of the outer tank. Each of the two air outlet branches is equipped with an air outlet valve. Finally, the guide pipe is split into two guide branches via a three-way valve, and these guide branches are connected to the bottom sides of the outer tank. The guide pipe is used to discharge condensate from inside the outer tank.

[0014] Preferably, the outer tank body is provided with gas collection chambers at both ends of the condenser pipe. Each gas collection chamber includes an inlet chamber and an outlet chamber. The inlet pipe is connected to the two inlet chambers through two inlet branch pipes, and the outlet pipe is connected to the two outlet chambers through two outlet branch pipes. The outer tank body is provided with a condensation chamber between the two gas collection chambers. The condenser pipe is located in the condensation chamber. The condensation chamber is connected to the inlet chamber and outlet chamber on both sides.

[0015] Preferably, both the intake valve and the exhaust valve are equipped with electromagnetic control valves. The intake valves on both sides alternately open and close. When the intake valve is open, the exhaust valve is closed, and when the intake valve is closed, the exhaust valve is open. The intake valve and the exhaust valve are electrically connected and controlled by the power cabinet.

[0016] Preferably, the inner ring of the discharge hole is provided with a rubber ring, which is in contact with the outer surface of the condenser tube. The outer ring of the pusher plate is rotatably connected with a positioning ring. A radial limit is provided between the positioning ring and the inner wall of the outer tank. A flow guide ring is rotatably connected to the outside of the positioning ring, and a flow guide drive is provided inside the positioning ring.

[0017] Preferably, the flow guide drive includes a main gear ring fixedly connected to the push plate, a connecting gear rotatably connected inside the positioning ring, the connecting gear meshing with the main gear ring, and an output gear rotatably connected inside the positioning ring. The output gear is coaxially fixedly connected to a drive gear, and an external gear ring is meshed with the drive gear. The external gear ring is fixedly connected to the flow guide ring, and a differential gear set is provided between the connecting gear and the output gear.

[0018] Preferably, the differential gear set is disposed inside the positioning ring, and the differential gear set is used to drive the output gear and the connecting gear, and the differential gear set is used to amplify the stroke of the main gear ring.

[0019] Preferably, there are two sets of flow guide rings, which are rotatably connected to both sides of the positioning ring, and the flow guide drive is used to drive the two sets of flow guide rings to rotate synchronously.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention uses a pusher plate and simultaneously controls the outlet pipe to alternately cause the condensing chambers on both sides of the pusher plate to discharge and introduce distillation steam. Distillation steam is introduced when the condensing chamber is expanding and discharged when the condensing chamber is contracting. By controlling the alternating introduction and discharge of distillation steam, the residence time of distillation steam in the condensing chamber is extended, the contact effect between distillation steam and condenser tube is improved, thereby improving the condensation effect of distillation steam, avoiding the waste of product pyridine chloride, and increasing the yield of product pyridine chloride.

[0022] 2. The pusher plate of this invention drives the guide ring to rotate through the flow guide drive. The guide ring causes the distillation vapor inside the condensation chamber to form a vortex, which improves the contact effect between the distillation vapor and the condenser tube, and further improves the condensation effect of the condenser tube on the distillation vapor. At the same time, the pusher plate is controlled to move, so that the condensation chamber in the expansion state inside the outer tank is filled with gas and the condensation chamber in the contraction state is filled with gas, which simultaneously improves the gas inlet and outlet effect inside the outer tank, thereby improving the condensation effect and efficiency.

[0023] 3. The pusher plate of this invention removes droplets or liquid films generated on the surface of the condenser tube due to condensation through the discharge hole, avoiding the formation of a protective layer on the surface of the condenser tube that would reduce the liquefaction effect of the condenser tube. At the same time, when the pusher plate quickly removes liquid from the surface of the condenser tube, it simultaneously accelerates the collection speed of the condensed product pyridine chloride, further improving the condensation efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the condenser of the present invention;

[0026] Figure 3 This is a partial cross-sectional view of the condenser of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure between the condenser tube and the flow propulsion mechanism inside the condenser of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection structure of the condenser tube, the pusher plate, and the guide ring of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the drive screw and the push plate of the present invention;

[0030] Figure 7 This is a schematic diagram of the propulsion mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the flow-driving structure of the present invention.

[0032] In the diagram: 1. Distillation column; 2. Reboiler; 3. Feed tank; 4. Condenser; 5. Reflux condenser; 6. Extraction tank; 7. Power cabinet; 41. Outer tank; 42. Inlet pipe; 421. Inlet valve; 43. Outlet pipe; 431. Outlet valve; 44. Water inlet pipe; 441. Flow divider ring; 45. Water outlet pipe; 451. Reflux ring; 46. Condenser; 47. Drive screw; 48. Flow propulsion mechanism; 49. 410. Drive motor; 411. Air inlet chamber; 412. Air outlet chamber; 413. Guide pipe; 481. Pusher plate; 482. Positioning ring; 483. Guide ring; 484. Guide drive; 485. Discharge hole; 4841. Main gear ring; 4842. Connecting gear; 4843. Differential gear set; 4844. Output gear; 4845. Drive gear; 4846. External gear ring. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1 - Figure 8 A distillation and condensation apparatus for the production of pyridine chloride, comprising a condenser 4, the condenser 4 comprising:

[0035] The outer tank 41 is provided with an air inlet pipe 42, an air outlet pipe 43, a water inlet pipe 44 and a water outlet pipe 45 on its exterior. A guide pipe 413 is fixedly connected to the bottom side of the outer tank 41.

[0036] Condenser 46, several condenser 46 are provided and are evenly fixedly connected to the inside of the outer tank 41. The condenser 46 are spirally twisted. A diversion ring 441 and a return ring 451 are fixedly connected to both sides of the several condenser 46. The water inlet pipe 44 is connected to the diversion ring 441 and the water outlet pipe 45 is connected to the return ring 451.

[0037] The flow propulsion mechanism 48 is movably connected inside the outer tank 41. The flow propulsion mechanism 48 includes a flow propulsion plate 481. The flow propulsion plate 481 has several discharge holes 485. The flow propulsion plate 481 is slidably connected to several condenser tubes 46 through the discharge holes 485.

[0038] The drive screw 47 is rotatably connected inside the outer tank 41. The drive screw 47 is threadedly connected to the push plate 481. A drive motor 49 is provided outside the drive screw 47.

[0039] It should be noted that the pusher plate 481 moves back and forth outside the condenser tube 46. The pusher plate 481 is used to scrape off the condensed product pyridine chloride that adheres to the outside of the condenser tube 46.

[0040] Specifically, during operation, the drive motor 49 drives the drive screw 47 to rotate, the drive screw 47 acts on the push plate 481, and the drive screw 47 drives the push plate 481 to reciprocate inside the outer tank 41.

[0041] Furthermore, when the pusher plate 481 slides back and forth outside the condenser tube 46, the pusher plate 481 rotates under the action of the condenser tube 46, and the rotation amplitude of the condenser tube 46 is controlled by the torsion of the condenser tube 46.

[0042] refer to Figure 1 In an optional embodiment, a distillation column 1 is provided outside the inlet pipe 42 of the condenser 4, a reboiler 2 is provided at the bottom of the distillation column 1, a reflux 5 is provided outside the guide pipe 413 of the condenser 4, an extraction tank 6 is provided outside the reflux 5, and a raw material tank 3 is provided outside the distillation column 1; it also includes a power cabinet 7 for control circuit.

[0043] During the distillation process, pyridine chloride is stored in the feed tank 3 and heated by the reboiler 2. The pyridine chloride feed is distilled inside the distillation column 1. The distillation vapor is transported to the condenser 4 through a pipeline. After being condensed by the condenser 4, it enters the reflux 5. By setting the reflux 5, the condensed product pyridine chloride flows to the extraction tank 6 and the distillation column 1 at a set ratio.

[0044] It should be noted that the distillation process is only used as a supplement to the existing technology for distillation and condensation devices, and is used to illustrate the distillation process in the production of pyridine chloride.

[0045] refer to Figure 3 and Figure 4 In an optional embodiment, the air inlet pipe 42 is split into two air inlet branches via a three-way valve. The two air inlet branches are respectively connected to both sides of the outer tank 41. An air inlet valve 421 is provided on the outside of each of the two air inlet branches. The air outlet pipe 43 is split into two air outlet branches via a three-way valve. The two air outlet branches are respectively connected to both sides of the outer tank 41. An air outlet valve 431 is provided on the outside of each of the two air outlet branches. The guide pipe 413 is split into two guide pipes via a three-way valve. The guide pipe 413 is connected to both sides of the bottom of the outer tank 41 via the two guide pipes. The guide pipe 413 is used to discharge the condensate inside the outer tank 41.

[0046] It should be noted that the inlet pipe 42 and the outlet pipe 43 control the entry and exit of distillation vapor on both sides of the outer tank 41 through the inlet branch pipe and the outlet branch pipe, and the push flow mechanism 48 is used to divide the outer tank 41 into two condensation chambers with alternating chamber areas. The two condensation chambers are controlled by the outlet branch pipe and the inlet branch pipe, respectively.

[0047] It should be noted that after the distillation vapor is condensed and liquefied on the surface of the condenser 46, it falls to the bottom of the outer tank 41, and then, under the action of the pusher mechanism 48, the condensed product pyridine chloride is discharged through the guide pipe 413.

[0048] refer to Figure 3 and Figure 4 In one optional embodiment, the outer tank 41 is provided with gas collection chambers 410 at both ends of the condenser pipe 46. Each gas collection chamber 410 includes an air inlet chamber 411 and an air outlet chamber 412. The air inlet pipe 42 is connected to the two air inlet chambers 411 through two air inlet branch pipes, and the air outlet pipe 43 is connected to the two air outlet chambers 412 through two air outlet branch pipes. The outer tank 41 is provided with a condensation chamber between the two gas collection chambers 410. The condenser pipe 46 is disposed in the condensation chamber. The condensation chamber is in communication with the air inlet chambers 411 and the air outlet chambers 412 on both sides.

[0049] It should be noted that the condensation chamber is located on both sides of the pusher plate 481 and is divided into a left condensation chamber and a right condensation chamber. The left condensation chamber and the right condensation chamber alternate as the pusher plate 481 moves.

[0050] It should be noted that during the movement of the pusher plate 481, when the left or right condensing chamber tends to increase in size, the condensing chamber is in a state of introducing distillation vapor; when the left or right condensing chamber tends to decrease in size, the condensing chamber is in a state of discharging distillation vapor.

[0051] By setting up a pusher plate 481 and simultaneously controlling the outlet pipe 43, the condensing chambers on both sides of the pusher plate 481 are alternately in a state of discharging and introducing distilled steam. Distilled steam is introduced when the condensing chamber is expanding and discharged when the condensing chamber is contracting. By controlling the alternating discharge and introduction of distilled steam, the residence time of distilled steam in the condensing chamber is extended, the contact effect between distilled steam and condenser pipe 46 is improved, thereby improving the condensation effect of distilled steam, avoiding the waste of product pyridine chloride, and increasing the yield of product pyridine chloride.

[0052] refer to Figure 3In an optional embodiment, both the intake valve 421 and the exhaust valve 431 are equipped with electromagnetic control valves. The intake valves 421 on both sides alternately open and close. When the intake valve 421 is open, the exhaust valve 431 is closed, and when the intake valve 421 is closed, the exhaust valve 431 is open. The intake valves 421 and the exhaust valve 431 are electrically connected and controlled by the power cabinet 7.

[0053] It should be noted that the inlet valve 421 and the outlet valve 431 are used to intelligently regulate the connection state of the inlet chamber 411 and the outlet chamber 412, thereby adjusting the introduction and export of distillation vapor in the condensation chamber on both sides of the pusher plate 481 and improving the effectiveness of the invention.

[0054] refer to Figure 6 and Figure 7 In an optional embodiment, the inner ring of the discharge hole 485 is provided with a rubber ring, which is in contact with the outer surface of the condenser tube 46. The outer ring of the pusher plate 481 is rotatably connected with a positioning ring 482. A radial limit is provided between the positioning ring 482 and the inner wall of the outer tank 41. A flow guide ring 483 is rotatably connected to the outside of the positioning ring 482. A flow guide drive 484 is provided inside the positioning ring 482.

[0055] The pusher plate 481 is slidably connected to the surface of the condenser tube 46 through the discharge hole 485. The pusher plate 481 rotates under the action of the condenser tube 46. At the same time, the pusher plate 481 drives the guide ring 483 to rotate through the guide drive 484. Therefore, when the pusher plate 481 moves laterally left and right, the guide ring 483 rotates synchronously under the action of the guide drive 484. Under the action of the pusher plate 481, the guide ring 483 rotates synchronously, and the guide ring 483 drives the distillation vapor inside the condensation chamber to form a vortex, which improves the contact effect between the distillation vapor and the condenser tube 46, thereby improving the condensation effect of the condenser tube 46 on the distillation vapor. At the same time, controlling the movement of the pusher plate 481, the condenser chamber in the expanded state inside the outer tank 41 is filled with gas, and the condenser chamber in the contracted state is filled with gas, which simultaneously improves the gas inlet and outlet effect inside the outer tank 41, thereby improving the condensation effect and efficiency.

[0056] Meanwhile, under the action of the pusher plate 481, the pusher plate 481 removes the droplets or liquid film generated by condensation on the surface of the condenser tube 46 through the discharge hole 485, so as to avoid the droplets or liquid film forming a protective layer on the surface of the condenser tube 46, which would reduce the liquefaction effect of the condenser tube 46. When the pusher plate 481 quickly removes the liquid on the surface of the condenser tube 46, it simultaneously accelerates the collection speed of the condensed product pyridine chloride, further improving the condensation efficiency.

[0057] refer to Figure 8In an optional embodiment, the flow guide drive 484 includes a main gear ring 4841 fixedly connected to the push plate 481, a connecting gear 4842 rotatably connected inside the positioning ring 482, the connecting gear 4842 and the main gear ring 4841 being meshed together, and an output gear 4844 rotatably connected inside the positioning ring 482. The output gear 4844 is coaxially fixedly connected to a drive gear 4845, and an external gear ring 4846 is meshed with the outside of the drive gear 4845. The external gear ring 4846 and the flow guide ring 483 are fixedly connected together, and a differential gear set 4843 is provided between the connecting gear 4842 and the output gear 4844.

[0058] The differential gear set 4843 is located inside the positioning ring 482. The differential gear set 4843 is used to drive the output gear 4844 and the connecting gear 4842. The differential gear set 4843 is used to amplify the stroke of the main gear ring 4841.

[0059] It should be noted that the differential gear set 4843 is composed of several large and small gears meshing alternately. The main gear ring 4841 drives the external gear ring 4846 to rotate through the differential gear set 4843, thereby creating a speed difference between the external gear ring 4846 and the main gear ring 4841, wherein the speed of the external gear ring 4846 is greater than the speed of the main gear ring 4841.

[0060] In an optional embodiment, two sets of guide rings 483 are provided, which are rotatably connected to both sides of the positioning ring 482, and the guide drive 484 is used to drive the two sets of guide rings 483 to rotate synchronously.

[0061] Both sides of the pusher plate 481 are provided with guide rings 483, so that when the pusher plate 481 moves, it can drive the guide rings 483 on both sides to rotate synchronously. This allows the distillation vapor inside the condensation chambers on both sides of the pusher plate 481 to form a vortex airflow under the action of the guide rings 483, thus ensuring the contact effect between the distillation vapor on both sides of the pusher plate 481 and the condenser tube 46. This ensures that a good condensation effect is maintained whether the distillation vapor is introduced or exported, thereby improving the condensation effect and condensation efficiency of the present invention.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distillation and condensation apparatus for the production of pyridine chloride, comprising a condenser (4), characterized in that: The condenser (4) includes: The outer tank (41) is provided with an air inlet pipe (42), an air outlet pipe (43), a water inlet pipe (44) and a water outlet pipe (45) on its exterior. A guide pipe (413) is fixedly connected to the bottom side of the outer tank (41). A number of condenser tubes (46) are provided and are evenly and fixedly connected inside the outer tank (41). The condenser tubes (46) are spirally twisted. A flow divider ring (441) and a return ring (451) are fixedly connected to both sides of the condenser tubes (46). The water inlet pipe (44) is connected to the flow divider ring (441), and the water outlet pipe (45) is connected to the return ring (451). The propulsion mechanism (48) is movably connected inside the outer tank (41). The propulsion mechanism (48) includes a propulsion plate (481). The propulsion plate (481) has several discharge holes (485). The propulsion plate (481) is slidably connected to several condenser tubes (46) through the discharge holes (485). The drive screw (47) is rotatably connected inside the outer tank (41). The drive screw (47) is threadedly connected to the push plate (481). A drive motor (49) is provided on the outside of the drive screw (47). The air inlet pipe (42) is split into two air inlet branches through a three-way valve. The two air inlet branches are connected to both sides of the outer tank (41). An air inlet valve (421) is provided on the outside of each of the two air inlet branches. The air outlet pipe (43) is split into two air outlet branches through a three-way valve. The two air outlet branches are connected to both sides of the outer tank (41). An air outlet valve (431) is provided on the outside of each of the two air outlet branches. The guide pipe (413) is split into two guide branches through a three-way valve. The guide pipe (413) is connected to both sides of the bottom of the outer tank (41) through the two guide branches. The guide pipe (413) is used to discharge the condensate inside the outer tank (41). The outer tank (41) is provided with gas collection chambers (410) at both ends of the condenser pipe (46). Each gas collection chamber (410) includes an air inlet chamber (411) and an air outlet chamber (412). The air inlet pipe (42) is connected to the two air inlet chambers (411) through two air inlet branch pipes respectively. The air outlet pipe (43) is connected to the two air outlet chambers (412) through two air outlet branch pipes respectively. The outer tank (41) is provided with a condenser chamber between the two gas collection chambers (410). The condenser pipe (46) is located in the condenser chamber. The condenser chamber is connected to the air inlet chamber (411) and the air outlet chamber (412) on both sides.

2. The distillation and condensation apparatus for pyridine chloride production according to claim 1, characterized in that: The condenser (4) has a distillation column (1) outside the inlet pipe (42), a reboiler (2) at the bottom of the distillation column (1), a reflux condenser (5) outside the guide pipe (413) of the condenser (4), an extraction tank (6) outside the reflux condenser (5), and a raw material tank (3) outside the distillation column (1); it also includes a power cabinet (7) for the control circuit.

3. The distillation and condensation apparatus for producing pyridine chloride according to claim 1, characterized in that: Both the intake valve (421) and the exhaust valve (431) are equipped with electromagnetic control valves. The intake valves (421) on both sides alternately open and close. When the intake valve (421) is open, the exhaust valve (431) is closed, and when the intake valve (421) is closed, the exhaust valve (431) is open. The intake valve (421) and the exhaust valve (431) are electrically connected and controlled by the power cabinet (7).

4. A distillation and condensation apparatus for producing pyridine chloride according to claim 1, characterized in that: The inner ring of the discharge hole (485) is provided with a rubber ring, which is in contact with the outer surface of the condenser tube (46). The outer ring of the pusher plate (481) is rotatably connected with a positioning ring (482). A radial limit is provided between the positioning ring (482) and the inner wall of the outer tank (41). A flow guide ring (483) is rotatably connected to the outside of the positioning ring (482). A flow guide drive (484) is provided inside the positioning ring (482).

5. A distillation and condensation apparatus for producing pyridine chloride according to claim 4, characterized in that: The flow guide drive (484) includes a main gear ring (4841) fixedly connected to the push plate (481), and a connecting gear (4842) rotatably connected inside the positioning ring (482). The connecting gear (4842) and the main gear ring (4841) are meshed together. The drive gear (4844) is also rotatably connected inside the positioning ring (482). The output gear (4844) is coaxially fixedly connected to a drive gear (4845). The drive gear (4845) is externally meshed with an external gear ring (4846). The external gear ring (4846) and the flow guide ring (483) are fixedly connected together. A differential gear set (4843) is provided between the connecting gear (4842) and the output gear (4844).

6. A distillation and condensation apparatus for producing pyridine chloride according to claim 5, characterized in that: The differential gear set (4843) is located inside the positioning ring (482). The differential gear set (4843) is used to drive the output gear (4844) and the connecting gear (4842). The differential gear set (4843) is used to amplify the stroke of the main gear ring (4841).

7. A distillation and condensation apparatus for producing pyridine chloride according to claim 6, characterized in that: Two sets of the flow guide rings (483) are provided, which are rotatably connected to both sides of the positioning ring (482). The flow guide drive (484) is used to drive the two sets of flow guide rings (483) to rotate synchronously.

Images