Distillation device and method for preparing squaric acid methylamine methyl ester

Abstract

The invention discloses a distillation device and method for preparing methylamine methyl squarate, and particularly relates to the technical field of distillation.The distillation device for preparing methylamine methyl squarate comprises a reaction kettle and further comprises a condensation tank, sealing end covers are detachably installed at the two ends of the condensation tank, and flow dividing disc bodies are installed at the two ends in the condensation tank. According to the condensation tank, the design of the multiple condensation pipe fittings is adopted, condensation recycling can be conducted in a flow dividing mode, the condensation structure design is optimized, by arranging the isolation units, steam and condensate can be controlled in the condensation pipe fittings to achieve separation, steam flowing is optimized, steam is prevented from being accumulated and flowing excessively in a concentrated mode, and the condensation effect is improved. The condensation pipe fitting is arranged, condensation operation of the rear section of the condensation pipe fitting is facilitated, the diversion pipe fitting is controlled through the diversion pipe fitting and the suction mechanism, steam of the front section of the condensation pipe fitting is continuously introduced into the middle section of the condensation pipe fitting, concentrated accumulation of the steam in the condensation pipe fitting is avoided, effective diversion can be completed, and the condensation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of distillation, and in particular to a distillation device and a method for preparing methylamine squarate. Background Art

[0002] Methyl squarylamine is an important organic compound, which is often used as a pharmaceutical intermediate and a dye intermediate. In terms of preparation, it is usually synthesized by using squarylamine as the starting material, undergoing an esterification reaction with methanol and trimethyl orthoformate, and then undergoing an amination reaction with a methanol solution of methylamine. The preparation process requires the control of reaction conditions, such as temperature, time, and raw material ratio, to obtain a higher yield and purity. In actual operation, methods such as distillation and recrystallization are often used to separate and purify the product. In the preparation process of methyl amine squarate, a distillation device is required to distill the mixture to obtain the desired solution, which is beneficial to subsequent preparation work.

[0003] A distillation device for preparing methyl amine squarate is disclosed in a patent application with reference publication number CN218280585U. The distillation device adopts a condensation mechanism, so that the cooling water inlet pipe enters the condensation barrel and is then discharged from the outlet pipe, so that the heat inside the condensation barrel is stratified, which solves the problem of excessive temperature difference between the inside and outside of the condensation tube, resulting in tube wall rupture, and realizes effective condensation of the internal substance of the condensation tube.

[0004] At present, the distillation preparation of methylamine squarate requires the use of a condensation mechanism for condensation recovery. For example, the above-mentioned distillation device also uses a condensation mechanism to complete the condensation work. However, the condensation mechanism of the above-mentioned distillation device uses a coiled condenser tube for condensation, which is disturbed by the flow rate of the condenser tube, resulting in a small flow rate of steam, affecting the distillation efficiency. In addition, a large amount of steam is concentrated at the front end of the condenser tube for rapid condensation, resulting in excessive cooling pressure at the front end of the condenser tube, which can easily affect the overall condensation effect. In addition, the current distillation device is unable to accurately divert and guide the steam, and cannot achieve efficient, fast and balanced condensation effect, which can easily cause uncondensed steam to escape and cause safety accidents. Summary of the invention

[0005] The object of the present invention is to provide a distillation device and method for preparing methylamine squarate to solve the above technical problems.

[0006] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0007] The present invention is a distillation device for preparing methylamine squarate, comprising a reaction kettle and: The condensing tank has sealing end caps that can be detachably installed at both ends, a diversion disc body is installed at both ends of the condensing tank, a positioning disc is detachably installed in the middle of the condensing tank, and a plurality of through areas are opened in a circular shape on the positioning disc, and a condensing pipe fitting is rotatably penetrated on each through area, and a diversion pipe fitting is installed on the front end and the middle position of each condensing pipe fitting, and a suction piece is installed at the front end of each diversion pipe fitting, and an isolation unit is arranged in each condensing pipe fitting, and the isolation unit controls the diversion and guidance of steam and condensate in the condensing pipe fitting, and the two ends of the condensing pipe fitting are respectively communicated with the two diversion disc bodies; The tilting mechanism is arranged on one side of the positioning plate, and the tilting angle is controlled by synchronously controlling multiple condensing pipes through the tilting mechanism; The suction mechanism is arranged on the other side of the positioning plate. The absorption mechanism is dynamically connected with the suction members of the plurality of diversion pipes. The suction mechanism synchronously controls the suction members of the plurality of diversion pipes to guide the steam at the front end of the condensation pipe to the middle position thereof to complete the diversion.

[0008] Furthermore, each diverter disc body comprises: The circular cavity is arranged in the condensing tank, and a circular cover is detachably installed at the front end of the circular cavity. A steam inlet pipe is connected to the circular cavity of one diverter plate, and a discharge pipe is connected to the circular cavity of the other diverter plate; A plurality of interconnected pipes are distributed and connected and arranged on the round cover and matched with a plurality of condensation pipe fittings.

[0009] Furthermore, each condensation pipe comprises: The condenser tube body is arranged through, and an annular cooling cavity is provided outside the condenser tube body. The head and tail of each condenser tube body are connected with the adjacent diverter disc body through a flexible pipeline to complete the transportation; Two rotating shafts are symmetrically arranged at both ends of the condenser tube body, and both rotating shafts are rotatably connected to the inner wall of the passing area through bearings; The detection sensor is arranged on one side of the condenser tube body.

[0010] Further, the isolation unit comprises: The isolation plate is arranged in the condenser tube body, and the top and bottom of the condenser tube body are separated into a steam space and a liquid space by the isolation plate; Multiple isolation channels are evenly distributed on the isolation plate to achieve the interconnection between the steam space and the liquid space.

[0011] Furthermore, the isolation unit also includes: An open area is provided through the front end of the isolation plate, a sliding member is slidably engaged in the open area, and a tail of the sliding member is correspondingly slidably arranged through the isolation plate; A receiving plate, arranged at the rear of the sliding member; Two return springs are arranged between the sliding member and the open area to complete the return control; The push arm is slidably arranged on the isolation plate and connected to the sliding member, and a rack is hidden and installed at the front end of the push arm; A No. 1 rotating shaft is rotatably mounted on the isolation plate through a bracket, a No. 1 spoiler is sleeved on the outside of the No. 1 rotating shaft, a No. 1 gear is sleeved on one end of the No. 1 rotating shaft, and the No. 1 gear is meshed with the rack, and the No. 1 spoiler is located in the middle of the isolation plate; The No. 2 rotating shaft is rotatably mounted on the isolation plate through a bracket, a No. 2 spoiler is sleeved on the outside of the No. 2 rotating shaft, a No. 2 gear is sleeved on one end of the No. 2 rotating shaft, and the No. 2 gear and the rack are normally separated, and the No. 2 gear can complete meshing transmission with the rack, and the No. 2 spoiler and the No. 1 spoiler are symmetrically spaced.

[0012] Furthermore, the flow dividing pipe comprises: The shunt pipe body is connected to the positioning plate through a bracket; A No. 1 flexible pipe is connected and arranged between the front end of the shunt pipe body and the front end of the condensation pipe fitting to achieve mutual communication; The second flexible pipe is connected and arranged between the tail section of the diversion pipe body and the middle section of the condensation pipe fitting to achieve interconnection.

[0013] Further, the attracting member comprises: A fixing frame is arranged at one end of the shunt pipe body close to the positioning plate; A slide rod is slidably arranged on the fixed frame and slidably penetrates into the diverter pipe body, and a ball bearing is installed at the front end of the slide rod; A compression spring is sleeved outside the slide bar; A tail plate, which is integrally arranged at the tail of the slide bar and is located in the diverter pipe body; An incomplete ring, a sliding seal is arranged in the flow dividing pipe body, and a flow area is opened through the middle of the incomplete ring; A plurality of guide rods are distributed in a circular array on one side of the incomplete ring. The plurality of guide rods are all slidably arranged through the tail plate, and a limiting head is arranged at the tail of each guide rod.

[0014] Further, the attraction mechanism comprises: Synchronous ring, rotatably mounted on the positioning plate; Multiple arc-shaped protrusions are arranged in a circular array on the surface of the synchronizer ring. Both sides of each arc-shaped protrusion are inclined to guide the ball. An inner gear ring, arranged on the inner wall of the synchronizer ring; The driving gear is rotatably mounted on the positioning plate and meshes with the inner gear ring. A driving member drivingly connected to the driving gear is hidden on the positioning plate.

[0015] Furthermore, the tilting mechanism comprises: A plurality of adjusting gears are fixedly sleeved on one of the rotating shafts of the plurality of condensing pipes, and a fine-tuning rack is meshed and mounted on each adjusting gear; The synchronous disk is arranged on one side of the positioning disk through a bracket, and a pushing member drivingly connected to the synchronous disk is installed on the positioning disk; A plurality of control arms are distributed on the synchronization disk and connected with a plurality of fine-tuning racks to complete synchronization control.

[0016] The present invention also provides a distillation method for preparing methylamine squarate, which specifically comprises the following steps: Step 1: First, put the feed liquid into the reactor, and then control the temperature of the reactor to increase the temperature of the feed liquid to evaporate, and the high-temperature steam is discharged and sent to the condenser; Step 2: By adopting a design of multiple condensing pipes, the high-temperature steam is diverted and sent into multiple condensing pipes to avoid concentrated accumulation of high-temperature steam; Step 3: By providing an isolation unit, the steam and condensate can be separated in the condensation pipe, which optimizes the flow of steam and facilitates the condensation operation in the rear section of the condensation pipe; Step 4: By providing a diversion pipe, the suction mechanism controls the diversion pipe, and continuously introduces the steam in the front section of the condensation pipe into the middle section of the condensation pipe, thereby achieving effective diversion control; Step 5: By providing a tilting mechanism, the tilting degrees of multiple condensation pipes can be synchronously controlled to change, which is beneficial for controlling the flow state of steam and condensate according to the operating state.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The condenser of the present invention adopts a design of multiple condensing pipes, so that high-temperature steam is diverted and sent into multiple condensing pipes, which greatly reduces the pressure of condensation recovery and optimizes the condensation structure design. By providing an isolation unit, the steam and condensate can be controlled to separate in the condensing pipe to avoid mutual interference, further improving the circulation speed of the steam. At the same time, the isolation unit can complete the adaptive turbulence operation according to the pressure state at the front end of the condensing pipe, optimize the flow of steam, avoid excessively concentrated accumulation of steam, and facilitate the condensation operation of the rear section of the condensing pipe; 2. The present invention is provided with a shunt pipe, and the suction mechanism controls the shunt pipe, and continuously introduces the steam in the front section of the condensation pipe into the middle section of the condensation pipe, thereby avoiding the concentrated accumulation of steam in the condensation pipe, and achieving effective shunt. The tail plate and the incomplete ring of the suction member can form a piston member, and continuous suction is performed at the tail of the shunt pipe body, which accelerates the flow speed of high-temperature steam in the shunt pipe body, ensures the high efficiency of drainage, and can actively control the action frequency of the suction member; 3. The present invention is equipped with a tilting mechanism, which can synchronously control the inclination of multiple condensation pipes to complete the change, which is beneficial to control the flow state of steam and condensate according to the operating state, optimizes the structural design, and enables the synchronous inclination control of multiple condensation tubes, accelerates the flow of condensate, and can be adaptively adjusted according to the pressure state of high-temperature steam, which is beneficial to the operation and control of construction personnel, ensures the stable operation of the distillation operation, and improves the distillation efficiency.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall front view of the present invention; Figure 2 It is a schematic diagram of the condensation tank of the present invention; Figure 3 This is a schematic diagram of the interior of the condensation tank of the present invention; Figure 4 It is a schematic diagram of the connection between multiple condensation pipes and a separation disk of the present invention; Figure 5 It is a schematic diagram of the distribution of multiple condensation pipes of the present invention; Figure 6 It is a schematic diagram of the distribution of the diversion pipe fittings and the condensation pipe fittings of the present invention; Figure 7 It is a schematic diagram of the installation of the rotating shaft of the present invention in the passing area; Figure 8 It is a schematic diagram of the tilting mechanism of the present invention; Fig. 9 It is a schematic diagram of the distribution of multiple flow-dividing pipes of the present invention; Fig.10 It is a schematic diagram of the distribution of the suction mechanism and multiple diversion pipes of the present invention; Fig.11 It is a schematic diagram of the attraction mechanism of the present invention; Fig.12 It is a schematic diagram of an attracting member of the present invention; Fig.13 is a schematic diagram of an isolation unit of the present invention; Fig.14 It is a schematic diagram of the isolation plate of the present invention in the condensation pipe; Fig.15 It is a schematic diagram of installing the push arm of the present invention on the isolation plate; Fig.16 For the present invention Fig.15 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1, reactor; 2, condenser; 3, sealing end cover; 4, control arm; 5, diverter plate; 6, positioning plate; 7, through area; 8, circular cavity; 9, steam inlet pipe; 10, discharge pipe; 11, intercommunication pipe; 12, condenser tube body; 13, annular cooling cavity; 14, rotating shaft; 15, detection sensor; 16, isolation plate; 17, steam space; 18, liquid space; 19, isolation channel; 20, open area; 21, sliding member; 22, receiving plate; 23, reset spring; 24, push arm; 25, rack; 26, one 1. Rotating shaft No. 1; 27. Spoiler No. 1; 28. Gear No. 1; 29. ​​Rotating shaft No. 2; 30. Spoiler No. 2; 31. Gear No. 2; 32. Diverter pipe body; 33. Flexible pipe No. 1; 34. Flexible pipe No. 2; 35. Sliding rod; 36. Extrusion spring; 37. Tail plate; 38. Incomplete ring; 39. Flow zone; 40. Guide rod; 41. Synchronizing ring; 42. Arc-shaped protrusion; 43. Inner gear ring; 44. Driving gear; 45. Driving member; 46. Adjusting gear; 47. Synchronizing disk; 48. Pushing member; 49. Fine-tuning rack. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] Embodiment 1: The present invention provides a technical solution: Figures 1 to 6 As shown, a distillation apparatus for preparing methylamine squarate includes a reactor 1, a stirring unit for stirring liquid is arranged inside the reactor 1, a jacket for temperature control is arranged outside the reactor 1, a steam outlet pipe is arranged on one side of the top of the reactor 1, and further includes: Condensation tank 2, both ends of which are detachably equipped with sealing end caps 3, both ends of which are equipped with diverter discs 5, and a positioning disc 6 is detachably installed in the middle of the condensation tank 2, and a plurality of through areas 7 are opened in a circular shape on the positioning disc 6, and each through area 7 is rotatably penetrated with a condensation pipe fitting, and the front end and the middle position of each condensation pipe fitting are connected and installed with a diverter pipe fitting, and a suction piece is installed at the front end of each diverter pipe fitting, and an isolation unit is arranged in each condensation pipe fitting, and the isolation unit controls the diversion and guidance of steam and condensate in the condensation pipe fitting, and the two ends of the condensation pipe fitting are respectively communicated with the two diverter discs 5; The tilting mechanism is arranged on one side of the positioning plate 6, and the tilting angle is controlled by synchronously controlling multiple condensing pipes through the tilting mechanism; The suction mechanism is arranged on the other side of the positioning plate 6. The absorption mechanism is dynamically connected with the suction members of the plurality of diversion pipes. The suction mechanism synchronously controls the suction members of the plurality of diversion pipes to guide the steam at the front end of the condensation pipe to the middle position thereof to complete the diversion. In the embodiment of the present invention, each diverter disc body 5 comprises: The circular cavity 8 is arranged in the condensation tank 2, and a circular cover is detachably installed at the front end of the circular cavity 8. A steam inlet pipe 9 is connected to the circular cavity 8 of one diverter plate 5, and a discharge pipe 10 is connected to the circular cavity 8 of the other diverter plate 5. A plurality of interconnecting pipes 11 are arranged on the round cover in a distributed and connected manner and are matched with a plurality of condensing pipe fittings, and each interconnecting pipe 11 is located below the condensing pipe fitting; like Figure 7 As shown, in the embodiment of the present invention, each condensation pipe comprises: The condenser tube body 12 is arranged through, and an annular cooling cavity 13 is sleeved on the outside of the condenser tube body 12. A delivery pipe is installed at both ends of the annular cooling cavity 13. The coolant is introduced into and led out of the annular cooling cavity 13 through the delivery pipe. The ends of each condenser tube body 12 are connected to the intercommunication pipe 11 of the adjacent diverter disc body 5 through a flexible pipe to complete the delivery. Two rotating shafts 14 are symmetrically arranged at both ends of the condenser tube body 12, and the two rotating shafts 14 are rotatably connected to the inner wall of the passing area 7 through bearings; A detection sensor 15 is arranged at one side of the condenser tube body 12. The detection sensor 15 is used to detect the condensate in the condenser tube body 12. The detection sensor 15 is specifically a liquid flow rate sensor or a liquid level sensor. It is worth noting that: when performing split condensation: by providing multiple condensation pipes, high-temperature steam enters the split disc body 5 through the steam inlet pipe 9, and the high-temperature steam is split to multiple condensation pipes through multiple interconnecting pipes 11, and the annular cooling chambers 13 on the multiple condensation pipes are synchronously controlled to control the flow of cooling water to ensure the condensation demand, and the high-temperature steam introduced into the condensation pipe body 12 is gradually condensed. The design of multiple condensation pipes optimizes the structural design, avoids the concentrated accumulation of high-temperature steam, improves the condensation efficiency, can control the condensation accuracy, and is convenient for construction personnel to operate; like Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, in an embodiment of the present invention, the isolation unit includes: The isolation plate 16 is disposed in the condenser tube body 12, and the top and bottom of the condenser tube body 12 are separated into a steam space 17 and a liquid space 18 by the isolation plate 16; A plurality of isolation channels 19 are evenly distributed through the isolation plate 16 to achieve interconnection between the steam space 17 and the liquid space 18; The isolation unit also includes: The open area 20 is formed through the front end of the isolation plate 16. A sliding member 21 is slidably engaged in the open area 20, and the rear end of the sliding member 21 is correspondingly slidably arranged through the isolation plate 16. A receiving plate 22 is disposed at the rear of the sliding member 21; Two return springs 23 are arranged between the sliding member 21 and the open area 20 to complete the return control; A push arm 24 is slidably disposed on the isolation plate 16 and connected to the sliding member 21, and a rack 25 is hidden and installed at the front end of the push arm 24; A No. 1 rotating shaft 26 is rotatably mounted on the isolation plate 16 through a bracket, and a No. 1 reset torsion spring is installed at the end of the No. 1 rotating shaft 26 to facilitate the reset of the No. 1 rotating shaft 26. A No. 1 spoiler 27 is sleeved on the outside of the No. 1 rotating shaft 26, and a No. 1 gear 28 is sleeved on one end of the No. 1 rotating shaft 26. The No. 1 gear 28 is meshed with the rack 25, and the No. 1 spoiler 27 is located in the middle of the isolation plate 16; The second rotating shaft 29 is rotatably mounted on the isolation plate 16 through a bracket, and a second reset torsion spring is installed at the end of the second rotating shaft 29 to facilitate the reset of the second rotating shaft 29. A second spoiler 30 is sleeved on the outside of the second rotating shaft 29, and a second gear 31 is sleeved on one end of the second rotating shaft 29. The second gear 31 and the rack 25 are normally separated, and the second gear 31 can complete meshing transmission with the rack 25. The second spoiler 30 and the first spoiler 27 are symmetrically spaced. It is worth mentioning that: when isolation and diversion are performed: an isolation unit is provided and an isolation plate 16 is adopted. After the high-temperature steam enters the condensation tube body 12, it is diverted into the steam space 17 and the liquid space 18 for flow condensation. In the path of gradual condensation, the high-temperature steam is condensed and liquefied. Due to the self-weight of the condensate, it falls and is guided to the liquid space 18 through multiple isolation channels 19. In the subsequent space, the high-temperature steam and the condensate are isolated and processed to avoid a large amount of condensate blocking the flow of the high-temperature steam, thereby optimizing the flow path of the high-temperature steam. At the same time, a receiving plate 22 is provided at the front end of the condensation tube body 12. The high-temperature steam carries pressure into the condensation tube body 12, and the high-temperature steam is blown onto the receiving plate 22, pushing the receiving plate 22 to The push arm 24 is able to move and can dynamically follow the pressure state of the high-temperature steam. When the receiving plate 22 moves, it moves forward via the push arm 24. Since the rack 25 at the front end of the push arm 24 is meshed with the No. 1 gear 28, the No. 1 rotating shaft 26 is pushed to rotate to open the No. 1 spoiler 27, which can intercept and turbulent the high-temperature steam, prolong the residence time of the high-temperature steam, and avoid the problem that the pressure of the high-temperature steam is too high and the residence period in the condensation pipe is short, which affects the condensation effect. At the same time, when the push arm 24 continues to move forward, the rack 25 is meshed with the No. 2 gear 31, and the No. 2 rotating shaft 29 is pushed to rotate to open the No. 2 spoiler 30, so as to further intercept and turbulent the high-temperature steam, and can be adaptively opened and closed according to the pressure value of the high-temperature steam, thereby optimizing the flow effect of the high-temperature steam; like Figures 9 and 10 As shown, in an embodiment of the present invention, the flow dividing pipe comprises: The shunt tube body 32 is connected to the positioning plate 6 through a bracket. A water-proof and breathable membrane is provided at the front end of the shunt tube body 32. In order to improve the stability of the suction member, a pressure pipe is installed between the tail of the shunt tube body 32 and the condensation tube body 12. A first flexible pipe 33 is arranged to communicate between the front end of the diverter pipe body 32 and the front end of the condenser pipe body 12 of the condenser pipe fitting; The second flexible pipe 34 is arranged to communicate between the tail section of the flow dividing pipe body 32 and the middle section of the condensing pipe body 12 of the condensing pipe fitting; It is worth noting that when the steam is drained: a shunt pipe is provided, the shunt pipe body 32 is interconnected with the condenser pipe body 12. When the pressure in the front section of the condenser pipe body 12 is too high, the drainage is completed by introducing the shunt pipe body 32 into the middle position of the condenser pipe body 12, thereby avoiding the accumulation of high-temperature steam. In addition, a suction mechanism is provided to start the driving member 45, control the driving gear 44 to rotate, and link the inner gear ring 43 and the synchronous ring 41 to rotate, so that the multiple arc-shaped protrusions 42 thereon follow the rotation. Since the synchronous ring 41 is provided in coordination with the suction members of the multiple shunt pipe bodies 32, when the slide rod 35 contacts the arc-shaped protrusion 42, the slide rod 35 overcomes the extrusion spring 36 to move, thereby pushing the tail plate 37. The incomplete ring 38 moves. Due to the friction between the incomplete ring 38 and the shunt tube body 32, the incomplete ring 38 has hysteresis, and the flow area 39 of the incomplete ring 38 is opened. When the slide rod 35 is separated from the arc-shaped protrusion 42, the slide rod 35 pulls the tail plate 37 to reset and move. Similarly, the incomplete ring 38 has hysteresis, so that the tail plate 37 and the incomplete ring 38 fit together to block the flow area 39. Then the tail plate 37 and the incomplete ring 38 are reset together to form a piston member, which can continuously suck at the tail of the shunt tube body 32, accelerate the flow speed of high-temperature steam in the shunt tube body 32, ensure the high efficiency of drainage, and actively control the action frequency of the suction member.

[0024] Among them, the driving member 45, the pushing member 48 and other electrical components are all connected to the switch through the wire, and the switch is electrically connected to the controller, and the specific structure of the controller is not limited.

[0025] Embodiment 2: Based on the attraction mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the attraction mechanism.

[0026] like Fig.11 and Fig.12 As shown, the attraction member includes: A fixing frame is arranged at one end of the flow dividing tube body 32 close to the positioning plate 6; The slide rod 35 is slidably mounted on the fixed frame and slidably penetrates into the flow dividing tube body 32, and a ball bearing is installed at the front end of the slide rod 35; The extrusion spring 36 is sleeved outside the slide rod 35, and the extrusion spring 36 is arranged between the fixing frame and the diverter tube body 32 to complete the reset; The tail plate 37 is integrally arranged at the tail of the slide rod 35 and is located in the flow dividing tube body 32; An incomplete ring 38, a sliding seal is arranged in the shunt tube body 32, the incomplete ring 38 is sleeved on the outside of the slide bar 35 corresponding to the sliding interval, and an anti-slip layer is arranged on the outside of the incomplete ring 38, and a flow area 39 is opened through the middle of the incomplete ring 38, and the size of the flow area 39 is larger than the size of the slide bar 35; A plurality of guide rods 40 are distributed in a circular array on one side of the incomplete ring 38, and the plurality of guide rods 40 are all slidably disposed through the tail plate 37, and a limiting head is disposed at the tail of each guide rod 40; In an embodiment of the present invention, the attraction mechanism comprises: The synchronizer ring 41 is rotatably mounted on the positioning plate 6; A plurality of arc-shaped protrusions 42 are arranged in a circular array on the surface of the synchronizer ring 41, and both sides of each arc-shaped protrusion 42 are inclined to guide the ball; An inner gear ring 43 is arranged on the inner wall of the synchronizer ring 41; The driving gear 44 is rotatably mounted on the positioning plate 6 and meshes with the inner gear ring 43. A driving member 45 is hidden on the positioning plate 6 and is transmission-connected to the driving gear 44. The driving member 45 can be replaced by other power units capable of completing rotational movements, such as pneumatic motors and waterproof motors.

[0027] Embodiment 3: Based on the tilting mechanism provided in Embodiment 1, this embodiment provides a further technical solution for the tilting mechanism.

[0028] like Figure 8 As shown, the tilting mechanism comprises: A plurality of adjusting gears 46 are fixedly sleeved on one of the rotating shafts 14 of the plurality of condensing pipes, and each adjusting gear 46 is meshed with a fine-tuning rack 49; The synchronous disk 47 is arranged on one side of the positioning disk 6 through a bracket, and a pusher 48 is installed on the positioning disk 6 and is connected to the synchronous disk 47 by transmission. The pusher 48 is specifically replaced by a cylinder, an oil cylinder, or other driving units capable of completing linear movement; A plurality of control arms 4 are distributed on a synchronization disk 47 and connected to a plurality of fine-tuning racks 49 to achieve synchronization control; It is worth noting that: when controlling the inclination angle of the condensation pipe fittings: by providing a tilting mechanism, a detection sensor 15 is provided in the condensation tube body 12, which can detect the amount of condensate flowing out of the tail of the condensation tube body 12. When it is detected that the output and flow speed of the condensate are low, the pusher 48 is started to control the movement of the synchronization disk 47 and multiple fine-tuning racks 49. The multiple adjustment gears 46 and the rotating shaft 14 are synchronously controlled by the multiple fine-tuning racks 49 to rotate, so that the inclination of the multiple condensation tube bodies 12 is synchronously controlled, which accelerates the flow of the condensate, can be adaptively adjusted according to the pressure state of the high-temperature steam, and can quickly control the flow speed of the high-temperature steam and the condensate, which is convenient for construction personnel to operate and control.

[0029] Embodiment 4: A distillation method for preparing methylamine squarate, the distillation method specifically comprising the following steps: Step 1: First, the feed liquid is put into the reactor 1, and then the temperature of the reactor 1 is controlled to increase, so that the feed liquid is heated and evaporated, and the high-temperature steam is discharged and sent to the condensation tank 2; Step 2: By adopting a design of multiple condensing pipes, the high-temperature steam is diverted and sent into multiple condensing pipes to avoid concentrated accumulation of high-temperature steam; Step 3: By providing an isolation unit, the steam and condensate can be separated in the condensation pipe, which optimizes the flow of steam and facilitates the condensation operation in the rear section of the condensation pipe; Step 4: By providing a diversion pipe, the suction mechanism controls the diversion pipe, and continuously introduces the steam in the front section of the condensation pipe into the middle section of the condensation pipe, thereby achieving effective diversion control; Step 5: By providing a tilting mechanism, the tilting degrees of multiple condensation pipes can be synchronously controlled to change, which is beneficial for controlling the flow state of steam and condensate according to the operating state.

[0030] The present invention provides a distillation device and method for preparing methylamine squarate, and the specific working principle is as follows: first, feed liquid is put into a reactor 1, and then the temperature of the reactor 1 is controlled to increase, so as to promote the temperature increase and evaporation of the feed liquid, and the high-temperature steam is discharged through a steam outlet pipe and sent into a condenser 2, and then introduced into a shunt plate 5. The condenser 2 adopts a design of multiple condensation pipes, so that the high-temperature steam is shunted and sent into multiple condensation pipes, which greatly reduces the pressure of condensation recovery, improves the condensation efficiency, optimizes the condensation structure design, and is provided with an isolation unit, so that the steam and the condensate can be controlled to be separated in the condensation pipe to avoid mutual interference, further improve the circulation speed of the steam, ensure the accuracy of condensation, and at the same time isolate The separation unit can complete adaptive turbulence operation according to the pressure state at the front end of the condensing pipe, optimize the flow of steam, avoid excessively concentrated accumulation of steam, and benefit the condensation operation at the rear end of the condensing pipe. By providing a diverter pipe, the attraction mechanism completes the control on the diverter pipe, and continuously introduces the steam at the front end of the condensing pipe into the middle end of the condensing pipe, avoiding the concentrated accumulation of steam in the condensing pipe, achieving effective diversion and improving the condensation efficiency. At the same time, with the design of the tilting mechanism, the tilt of multiple condensing pipes can be synchronously controlled to complete the change, which is beneficial to control the flow state of steam and condensate according to the operating state, optimizes the structural design, ensures the stable operation of the distillation operation, and improves the distillation efficiency.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A distillation apparatus for preparing methyl squarylamine, comprising a reaction kettle (1), characterized in that: Also includes: A condenser (2) having sealing end covers (3) detachably mounted at both ends, a flow diversion disc body (5) mounted at both ends of the condenser (2), a positioning disc (6) detachably mounted in the middle of the condenser (2), a plurality of through areas (7) being arranged in a circular shape on the positioning disc (6), each through area (7) being rotatably penetrated by a condenser pipe fitting, a flow diversion pipe fitting being mounted at the front end of each condenser pipe fitting in communication with the middle position, a suction piece being mounted at the front end of each flow diversion pipe fitting, an isolation unit being arranged in each condenser pipe fitting, the isolation unit controlling the diversion and guidance of steam and condensate in the condenser pipe fitting, and the two ends of the condenser pipe fitting being respectively communicated with the two flow diversion disc bodies (5); A tilting mechanism is arranged on one side of the positioning plate (6), and controls the tilting angle by synchronously controlling the plurality of condensing pipes through the tilting mechanism; The suction mechanism is arranged on the other side of the positioning plate (6). The absorption mechanism is dynamically connected to the suction members of the plurality of diversion pipes. The suction mechanism synchronously controls the suction members of the plurality of diversion pipes to guide the steam at the front end of the condensation pipe to the middle position thereof to complete the diversion.

2. A distillation apparatus for preparing methylamine squarate according to claim 1, characterized in that: Each diverter disc body (5) comprises: A circular cavity (8) is arranged in the condensation tank (2), and a circular cover is detachably installed at the front end of the circular cavity (8); a steam inlet pipe (9) is connected to the circular cavity (8) of one diverter disc body (5), and a discharge pipe (10) is connected to the circular cavity (8) of the other diverter disc body (5); A plurality of interconnecting pipes (11) are arranged on the round cover in a distributed and interconnected manner and cooperate with a plurality of condensation pipe fittings.

3. A distillation apparatus for preparing methylamine squarate according to claim 1, characterized in that: Each condensate fitting includes: The condenser tube body (12) is arranged to penetrate through the condenser tube body (12), and an annular cooling cavity (13) is provided on the outside of the condenser tube body (12). The head and tail of each condenser tube body (12) are connected to the adjacent diverter disc body (5) through a flexible pipe to complete the transportation; Two rotating shafts (14) are symmetrically arranged at two ends of the condenser tube body (12), and the two rotating shafts (14) are rotatably connected to the inner wall of the passing area (7) through bearings; The detection sensor (15) is arranged on one side inside the condensation tube body (12).

4. A distillation apparatus for preparing methylamine squarate according to claim 3, characterized in that: The isolation unit includes: An isolation plate (16) is disposed in the condenser tube body (12), and the top and bottom of the condenser tube body (12) are separated into a steam space (17) and a liquid space (18) by the isolation plate (16); A plurality of isolation channels (19) are evenly distributed through the isolation plate (16) to achieve interconnection between the steam space (17) and the liquid space (18).

5. A distillation apparatus for preparing methylamine squarate according to claim 4, characterized in that: The isolation unit also includes: An open area (20) is provided through the front end of the isolation plate (16), a sliding member (21) is slidably engaged in the open area (20), and a rear end of the sliding member (21) is correspondingly slidably arranged to pass through the isolation plate (16); A receiving plate (22) is arranged at the rear of the sliding member (21); Two return springs (23) are arranged between the sliding member (21) and the open area (20) to complete the return control; A push arm (24) is slidably mounted on the isolation plate (16) and connected to the sliding member (21), and a rack (25) is hidden and installed at the front end of the push arm (24); A first rotating shaft (26) is rotatably mounted on the isolation plate (16) through a bracket, a first spoiler (27) is sleeved on the outside of the first rotating shaft (26), a first gear (28) is sleeved on one end of the first rotating shaft (26), and the first gear (28) is meshed with the rack (25), and the first spoiler (27) is located in the middle of the isolation plate (16); The second rotating shaft (29) is rotatably mounted on the isolation plate (16) through a bracket, and a second spoiler (30) is sleeved on the outside of the second rotating shaft (29). A second gear (31) is sleeved on one end of the second rotating shaft (29), and the second gear (31) and the rack (25) are separated in a normal state. At the same time, the second gear (31) can complete meshing transmission with the rack (25), and the second spoiler (30) and the first spoiler (27) are symmetrically spaced.

6. A distillation apparatus for preparing methyl squarylamine according to claim 1, characterized in that: The splitter pipe includes: The shunt pipe body (32) is connected to the positioning plate (6) via a bracket; A first flexible pipe (33) is arranged to communicate between the front end of the diversion pipe body (32) and the front end of the condensation pipe member to achieve mutual communication; The second flexible pipe (34) is arranged to communicate between the tail section of the diversion pipe body (32) and the middle section of the condensation pipe member to achieve mutual communication.

7. A distillation apparatus for preparing methyl squarylamine according to claim 6, characterized in that: The attraction element comprises: A fixing frame, arranged at one end of the flow dividing pipe body (32) close to the positioning plate (6); A slide rod (35) is slidably mounted on the fixed frame and slidably penetrates into the flow dividing tube body (32), and a ball bearing is mounted on the front end of the slide rod (35); A compression spring (36) is sleeved outside the slide rod (35); A tail plate (37) integrally arranged at the tail of the slide rod (35) and located inside the diverter pipe body (32); An incomplete ring (38) is provided as a sliding seal in the flow dividing tube body (32), and a flow area (39) is provided through the middle of the incomplete ring (38); A plurality of guide rods (40) are distributed in a circular array on one side of the incomplete ring (38); the plurality of guide rods (40) are all slidably disposed through the tail plate (37); and a limiting head is disposed at the tail of each guide rod (40).

8. A distillation apparatus for preparing methyl squarylamine according to claim 1, characterized in that: The attraction agencies include: A synchronizer ring (41) is rotatably mounted on the positioning plate (6); A plurality of arc-shaped protrusions (42) are arranged in a circular array on the surface of the synchronization ring (41), and both sides of each arc-shaped protrusion (42) are inclined so as to guide the ball bearings; An inner gear ring (43) is arranged on the inner wall of the synchronizer ring (41); The driving gear (44) is rotatably mounted on the positioning plate (6) and meshes with the inner gear ring (43). A driving member (45) drivingly connected to the driving gear (44) is concealed on the positioning plate (6).

9. A distillation apparatus for preparing methyl squarylamine according to claim 5, characterized in that: The tilting mechanism comprises: A plurality of adjusting gears (46) are fixedly sleeved on one of the rotating shafts (14) of the plurality of condensing pipe members, and each adjusting gear (46) is meshedly mounted with a fine-tuning rack (49); A synchronous disk (47) is arranged on one side of the positioning disk (6) via a bracket, and a pushing member (48) drivingly connected to the synchronous disk (47) is installed on the positioning disk (6); A plurality of control arms (4) are distributed on a synchronization disk (47) and connected to a plurality of fine-tuning racks (49) to achieve synchronization control.

10. A distillation method for preparing methyl squarylamine, using the distillation apparatus for preparing methyl squarylamine according to any one of claims 1 to 9, characterized in that: The distillation method specifically comprises the following steps: Step 1: firstly, the feed liquid is put into the reaction kettle (1), and then the temperature of the reaction kettle (1) is controlled to increase, so that the feed liquid is heated and evaporated, and the high-temperature steam is discharged and sent to the condensation tank (2); Step 2: By adopting a design of multiple condensing pipes, the high-temperature steam is diverted and sent into multiple condensing pipes to avoid concentrated accumulation of high-temperature steam; Step 3: By providing an isolation unit, the steam and condensate can be separated in the condensation pipe, which optimizes the flow of steam and facilitates the condensation operation in the rear section of the condensation pipe; Step 4: By providing a diversion pipe, the suction mechanism controls the diversion pipe, and continuously introduces the steam in the front section of the condensation pipe into the middle section of the condensation pipe, thereby achieving effective diversion control; Step 5: By providing a tilting mechanism, the tilting degrees of multiple condensation pipes can be synchronously controlled to change, which is beneficial for controlling the flow state of steam and condensate according to the operating state.

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