Methyl acetoacetate purification device and method

Abstract

The invention relates to the technical field of methyl acetoacetate purification, in particular to a methyl acetoacetate purification device and method.The methyl acetoacetate purification device comprises a bottom plate, a rectification tank body, a feeding pipe, a collecting system and a preheating system arranged in the rectification tank body and used for preheating, and further comprises a driving rod arranged below the preheating system, the output end of the driving source is connected; according to the methyl acetoacetate purification device and method, by arranging the preheating system, the storage bin, the heat collection assembly and the heat discharge assembly, efficient recovery and reutilization of heat in the rectification tank body are achieved, in the preheating process, heat generated in the previous rectification process can be fully utilized, energy consumption is reduced, the energy utilization efficiency is improved, and the energy consumption is reduced. By recycling and utilizing heat generated in the rectification process, dependence on external energy is reduced, and by arranging the driving part, the transmission part, the extrusion part and other assemblies, intelligent control over heat collection, storage and discharge is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of methyl acetoacetate purification, and in particular to a methyl acetoacetate purification device and method. Background Art

[0002] Distillation utilizes the difference in volatility of each component in a mixture to achieve high-purity separation through multiple partial vaporization and partial condensation in a tower device. Its principle is based on the difference in boiling points of different components. During the heating process, the component with a lower boiling point in the liquid mixture evaporates first to form steam, and then the steam is cooled through a condenser and converted into liquid, thereby achieving separation of the mixture. Before distillation, the existing distillation tank needs to preheat the methyl acetoacetate in the distillation tank, and gradually heat it to make the crude methyl acetoacetate boil, thereby forming steam. A distillation tank with a fast preheating speed can greatly improve the purification efficiency of methyl acetoacetate. In order to solve the above problems, a Chinese invention patent with the announcement number CN113368521B discloses a distillation device, which specifically includes: a base, the top of which has a base body, and a mounting base for fixing on the base body; a distillation tank, which has a tank body, a distillation tank cover and a driving mechanism fixed on the top, and the driving mechanism is arranged inside the distillation tank cover, and a feed conduit is arranged on the side of the distillation tank cover; a collecting tank, which has a storage tank body, and a distillation conduit fixed on the top and connected to the distillation tank; the present invention relates to the field of chemical technology. The distillation device solves the problem that the internal solution of the existing distillation tower will take a lot of time to complete the heating of the internal solution during preheating, and the internal mixing and heating mechanism has low working efficiency. The device is set with two working states, which can accelerate the distillation of the internal solution of the device, and the internal flow generated by the cooperation of the internal kits can achieve faster internal mixing and heating than a single spiral stirring; However, we found in actual use that when the distillation tank is completed with one purification work and the next preheating work is required, the distillation tank is filled with methyl acetoacetate liquid at normal temperature, which will cause heat loss in the distillation tank, so that the methyl acetoacetate poured into the distillation tank for the second time will boil and take a lot of time to complete the preheating process, which greatly reduces the preheating efficiency of methyl acetoacetate in the distillation tank and the purification efficiency of methyl acetoacetate. For this reason, we propose a methyl acetoacetate purification device and method. Summary of the invention

[0003] A technical problem to be solved by the present application is: how to collect the heat generated in the distillation tank to avoid the loss of heat in the distillation tank, thereby improving the preheating and purification efficiency of methyl acetoacetate.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a methyl acetoacetate purification device, including a bottom plate, a distillation tank body, a feeding pipe, a collection system, and a preheating system for preheating arranged in the distillation tank body, and also includes A driving rod, arranged below the preheating system and connected to an output end of a driving source; A storage bin is disposed in the distillation tank body and is used to store the heat generated in the distillation tank body in preparation for the subsequent preheating of methyl acetoacetate; A heat collection component is arranged in the distillation tank body. When the preheating system rotates counterclockwise, the heat collection component is used to push the heat in the distillation tank body into the storage bin and pressurize the heat in the storage bin, so that a large amount of heat is stored in the storage bin; The heat discharge component is arranged in the distillation tank body, and the heat in the storage bin is discharged out of the storage bin and discharged into the methyl acetoacetate in the distillation tank body by using the heat discharge component.

[0005] In some embodiments, the heat collection assembly includes a driving member disposed in the distillation tank body, and the driving member is used to cooperate with the driving rod to rotate counterclockwise to generate power. A transmission member is disposed in the distillation tank body, and the transmission member is used to transfer power to collect heat in the distillation tank body. An extrusion member is disposed in the distillation tank body, and the extrusion member is used to collect and squeeze the heat in the distillation tank body, thereby driving the heat in the distillation tank body into the storage bin.

[0006] In some embodiments, the driving member includes a ratchet arranged on the outside of the driving rod, a bearing is arranged in the distillation tank body, the inner ring of the bearing is arranged at the bottom of the inner wall of the distillation tank body, a driving gear is arranged on the top of the outer ring of the bearing, a driving shaft is arranged on the top of the driving gear, a ratchet is rotatably arranged on the outside of the driving shaft for use with the ratchet, a torsion spring is arranged on the outside of the driving shaft, and the end of the torsion spring away from the driving shaft is arranged on the ratchet.

[0007] In some embodiments, the transmission member includes a transmission shaft rotatably disposed in the distillation tank body, a transmission gear meshing with the driving gear is disposed on the outside of the transmission shaft, a transmission block is disposed on the top of the transmission shaft, a transmission groove is opened in the transmission block, and the transmission block and the transmission groove are both elliptical, a transmission frame is disposed in the distillation tank body, and the transmission shaft passes through and is rotatably disposed in the transmission frame.

[0008] In some embodiments, the extrusion member includes a sliding rod slidably arranged in the transmission groove, an extrusion rod is arranged on the side of the sliding rod away from the transmission block, a U-shaped rod is arranged on the end of the extrusion rod away from the sliding rod, two auxiliary tubes are arranged on the top of the storage bin, and the two auxiliary tubes are communicated with the storage bin, the two ends of the U-shaped rod are respectively slidably arranged in the two auxiliary tubes, and the two ends of the U-shaped rod are respectively provided with extrusion plates, and the two extrusion plates are respectively slidably arranged in the corresponding auxiliary tubes, a one-way valve 1 is arranged in the two auxiliary tubes, and the opening directions of the two one-way valves 1 are away from the U-shaped rod, an air intake pipe is arranged on the top of the two auxiliary tubes, the two air intake pipes are both arc-shaped, and the ends of the two air intake pipes away from the two auxiliary tubes are bent in opposite directions, a one-way valve 2 is arranged in the two air intake pipes, the openings of the two one-way valves 2 are opposite, and the two air intake pipes are respectively located between the two one-way valves 1 and the two extrusion plates.

[0009] In some embodiments, the heat discharge component includes a water flow power component arranged on the outside of the storage bin, which uses the water flow power component to generate kinetic energy to discharge the heat in the storage bin. A control component is provided in the storage bin, which is used to control the heat discharge and storage in the storage bin. A waterproof component is provided in the storage bin, which is used to control the storage bin to keep dry.

[0010] In some embodiments, the water flow power component includes a power rod slidably disposed in the storage bin, a water receiving plate is disposed on the top of the power rod, a synchronization plate is disposed on the bottom of the power rod, and two power springs are disposed at the bottom of the synchronization plate.

[0011] In some embodiments, the control component includes a discharge pipe arranged at both ends of the storage bin, both of the discharge pipes are communicated with the storage bin, multiple through holes are opened on the outer sides of the two discharge pipes, two partitions are arranged in the storage bin, the two partitions divide the storage bin into three cavities, limiting plates are arranged on opposite sides of the two partitions, control plates are slidably arranged in the two limiting plates, and the two control plates are respectively arranged at both ends of the synchronization plate, rubber plates are arranged in the two control plates, and exhaust grooves used in conjunction with the two control plates are opened on the two partitions.

[0012] In some embodiments, the waterproof component includes a fixing frame arranged on the back sides of the two partitions, and the two fixing frames are provided with return springs on the opposite sides. The opposite ends of the two return springs are provided with waterproof plates used in conjunction with the two exhaust grooves, and the two waterproof plates are both fitted with the corresponding partitions.

[0013] In some embodiments, a water baffle is provided in the distillation tank body. The water baffle is arc-shaped and located at one end of the feeding pipe close to the distillation tank body. The water baffle is used to intercept strong impact flow and change the direction of water flow.

[0014] A method for purifying methyl acetoacetate: S1: adding crude methyl acetoacetate into the distillation tank body through a feeding pipe; S2: Start the driving source and control the driving rod to rotate clockwise; S3: preheating the crude methyl acetoacetate in the distillation tank body through a preheating system; S4: continuously heating the crude methyl acetoacetate until the crude methyl acetoacetate boils and vaporizes the crude methyl acetoacetate to form steam; S5: completing the purification of crude methyl acetoacetate in the distillation tank body; S6: Start the driving source and control the driving rod to rotate counterclockwise to collect heat; S7: heat collection is completed and the startup source is turned off; S8: adding crude methyl acetoacetate through a feeding tube; S9: Release the heat in the storage bin for preheating.

[0015] The present invention has at least the following beneficial effects: By setting up a preheating system, a storage bin, a heat collection component and a heat discharge component, efficient recovery and reuse of the heat in the distillation tank body is achieved. During the preheating process, the heat generated in the previous distillation process can be fully utilized, which reduces energy consumption and improves energy utilization efficiency. By recovering and utilizing the heat generated in the distillation process, dependence on external energy is reduced. By setting up components such as drive parts, transmission parts, and extrusion parts, intelligent control of heat collection, storage, and discharge is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of the distillation tank body structure of the present invention; Figure 3 This is a schematic diagram of the structure of the heat collection component of the present invention; Figure 4 This is a schematic diagram of the structure of the driving member of the present invention; Figure 5 It is a schematic diagram of the bearing structure of the present invention; Figure 6 It is a schematic diagram of the partial structure of the extrusion part of the present invention; Figure 7 It is a schematic diagram of the explosion of the transmission part structure of the present invention; Figure 8 It is a side sectional schematic diagram of the storage bin structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the water flow power member of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the control part of the present invention; Fig.11 This is a structural diagram of Example 2 of the present invention.

[0017] In the figure: 1-bottom plate; 2-rectifier body; 3-feeding pipe; 4-collection system; 5-preheating system; 6-driving rod; 7-storage bin; 8-heat collecting assembly; 9-heat discharging assembly; 10-driving member; 101-ratchet; 102-bearing; 103-driving gear; 104-driving shaft; 105-ratchet; 106-torsion spring; 11-transmission member; 111-transmission shaft; 112-transmission gear; 113-transmission block; 114-transmission groove; 115-transmission frame; 12-extrusion member; 121-sliding rod; 122-extrusion rod; 1 23-U-shaped rod; 124-auxiliary pipe; 125-extrusion plate; 126-one-way valve 1; 127-intake pipe; 128-one-way valve 2; 13-water flow power part; 131-power rod; 132-water receiving plate; 133-synchronizing plate; 134-power spring; 14-control part; 141-discharge pipe; 142-through hole; 143-partition plate; 144-limiting plate; 145-control plate; 146-rubber plate; 147-exhaust groove; 15-waterproof part; 151-fixing frame; 152-reset spring; 153-waterproof plate; 16-water retaining plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1: Please refer to Figure 1-10 The present invention provides a technical solution: a methyl acetoacetate purification device, comprising a bottom plate 1, a distillation tank body 2, a feeding pipe 3, a collecting system 4 and a preheating system 5 arranged in the distillation tank body 2 for preheating, and also comprising A driving rod 6 is arranged below the preheating system 5 and connected to an output end of the driving source; A storage bin 7 is provided in the distillation tank body 2 and is used to store the heat generated in the distillation tank body 2 in preparation for the subsequent preheating of methyl acetoacetate; The heat collecting component 8 is arranged in the distillation tank body 2. When the preheating system 5 rotates counterclockwise, the heat collecting component 8 is used to push the heat in the distillation tank body 2 into the storage bin 7, and the heat in the storage bin 7 is pressurized, so that a large amount of heat is stored in the storage bin 7; The heat discharge component 9 is arranged in the distillation tank body (2), and the heat in the storage bin 7 is discharged out of the storage bin 7 and discharged into the methyl acetoacetate in the distillation tank body 2 by the heat discharge component 9.

[0019] The heat collection assembly 8 includes a driving member 10 arranged in the distillation tank body 2, and the driving member 10 cooperates with the driving rod 6 to generate power by counterclockwise rotation. A transmission member 11 is arranged in the distillation tank body 2, and the transmission member 11 is used to transfer power for collecting heat in the distillation tank body 2. An extrusion member 12 is arranged in the distillation tank body 2, and the extrusion member 12 is used to collect and squeeze the heat in the distillation tank body 2, thereby driving the heat in the distillation tank body 2 into the storage bin 7.

[0020] The driving member 10 includes a ratchet 101 arranged on the outside of the driving rod 6, a bearing 102 is arranged in the distillation tank body 2, the inner ring of the bearing 102 is arranged on the bottom of the inner wall of the distillation tank body 2, a driving gear 103 is arranged on the top of the outer ring of the bearing 102, and a driving shaft 104 is arranged on the top of the driving gear 103. A ratchet 105 used in conjunction with the ratchet 101 is rotatably arranged on the outside of the driving shaft 104, a torsion spring 106 is arranged on the outside of the driving shaft 104, and one end of the torsion spring 106 away from the driving shaft 104 is arranged on the ratchet 105. When the driving rod 6 rotates counterclockwise, the ratchet 101 arranged on the outside of the driving rod 6 will rotate together with the driving rod 6. When the ratchet 101 rotates counterclockwise with the driving rod 6, the ratchet 101 will pass through the ratchet 105. When the ratchet 101 rotates counterclockwise, the ratchet 105 drives the driving gear 103 to rotate together through the driving shaft 104, so that the driving gear 103 starts to rotate. The bearing 102 arranged at the bottom of the driving gear 103 can support the driving gear 103 while avoiding friction between the driving gear 103 and the distillation tank body 2 to cause kinetic energy loss. Its function is to generate power through the cooperation of the ratchet 101 and the ratchet 105 when the driving rod 6 rotates counterclockwise, thereby providing power for the storage of heat in the distillation tank body 2.

[0021] The transmission member 11 includes a transmission shaft 111 rotatably arranged in the distillation tank body 2, a transmission gear 112 meshing with the driving gear 103 is arranged on the outside of the transmission shaft 111, a transmission block 113 is arranged on the top of the transmission shaft 111, a transmission groove 114 is opened in the transmission block 113, and the transmission block 113 and the transmission groove 114 are both elliptical, a transmission frame 115 is arranged in the distillation tank body 2, and the transmission shaft 111 passes through and is rotatably arranged in the transmission frame 115. When the driving gear 103 rotates, the driving gear 103 will drive the transmission gear 112 meshing with it to rotate together. When the transmission gear 112 rotates, the transmission frame 115 is arranged The transmission shaft 111 at its axis will rotate together with the transmission gear 112, and then the transmission block 113 arranged on the top of the transmission shaft 111 will rotate together. The transmission frame 115 arranged in the distillation tank body 2 can limit the position of the transmission shaft 111 to prevent the position of the transmission shaft 111 from shifting during the rotation process. When the transmission block 113 rotates, the transmission groove 114 opened in the transmission block 113 will move together with the transmission block 113, so that the transmission groove 114 rotates with the transmission block 113 around the axis of the transmission shaft 111. Its function is to collect heat and transmit power for compression.

[0022] The extrusion member 12 includes a sliding rod 121 slidably arranged in the transmission groove 114, an extrusion rod 122 is arranged on the side of the sliding rod 121 away from the transmission block 113, and a U-shaped rod 123 is arranged on the end of the extrusion rod 122 away from the sliding rod 121. Two auxiliary pipes 124 are arranged on the top of the storage bin 7, and the two auxiliary pipes 124 are communicated with the storage bin 7. The two ends of the U-shaped rod 123 are respectively slidably arranged in the two auxiliary pipes 124, and the two ends of the U-shaped rod 123 are respectively provided with extrusion plates 125, and the two extrusion plates 125 are respectively slidably arranged in the corresponding auxiliary pipes 124, and the two auxiliary pipes 124 are each provided with a one-way valve 126. The two one-way valves 126 The opening directions are away from the U-shaped rod 123, and the tops of the two auxiliary pipes 124 are both provided with air inlet pipes 127. The two air inlet pipes 127 are both arc-shaped, and the ends of the two air inlet pipes 127 away from the two auxiliary pipes 124 are bent in opposite directions. A one-way valve 128 is provided in each of the two air inlet pipes 127. The openings of the two one-way valves 128 are opposite to each other. The two air inlet pipes 127 are respectively located between the two one-way valves 126 and the two extrusion plates 125. When the transmission block 113 drives the transmission groove 114 to move, the sliding rod 121 slidably set in the transmission groove 114 will slide in the transmission block 113 under the action of the transmission groove 114. The transmission block 113 is elliptical, and the U-shaped block is connected to one end of the extrusion rod 122, and the U-shaped rod 123 slides in the two auxiliary tubes 124, so that the sliding rod 121 arranged at one end of the extrusion rod 122 reciprocates. At the same time, the reciprocating sliding rod 121 pushes the extrusion rod 122 and the U-shaped rod 123 to reciprocate together. When the U-shaped rod 123 reciprocates, the two ends of the U-shaped rod 123 slide in the corresponding auxiliary tubes 124 respectively, thereby driving the extrusion plates 125 at the two ends of the U-shaped rod 123 to slide in the auxiliary tubes 124. When the extrusion plates 125 move toward the transmission block 113, the one-way valve 121 in the auxiliary tube 124 is closed. 6 is closed, and the one-way valve 128 in the air inlet pipe 127 is opened, so that the hot air in the distillation tank body 2 is sucked into the auxiliary pipe 124. When the extrusion plate 125 moves in the direction of the one-way valve 126, the one-way valve 128 is closed and the one-way valve 126 is opened. Under the action of the extrusion plate 125, the hot air entering the auxiliary pipe 124 will go along the auxiliary pipe 124, pass through the one-way valve 126 and enter the storage bin 7. Its function is to push the hot air in the distillation tank body 2 into the storage bin 7 through the cooperation of the one-way valve 126, the one-way valve 128 and the extrusion plate 125, so that the heat is preserved and compressed.

[0023] The heat discharge component 9 includes a water flow power component 13 arranged on the outside of the storage bin 7. The water flow power component 13 generates kinetic energy to discharge the heat in the storage bin 7. A control component 14 is provided in the storage bin 7. The control component 14 is used to control the heat discharge and storage in the storage bin 7. A waterproof component 15 is provided in the storage bin 7. The waterproof component 15 is used to control the storage bin 7 to keep it dry.

[0024] The water flow power member 13 includes a power rod 131 slidably arranged in the storage bin 7, a water receiving plate 132 is arranged on the top of the power rod 131, a synchronous plate 133 is arranged on the bottom of the power rod 131, and two power springs 134 are arranged on the bottom of the synchronous plate 133. When the crude methyl acetoacetate enters the distillation tank body 2 through the feeding pipe 3, the crude methyl acetoacetate liquid will be poured on the water receiving plate 132. When the water receiving plate 132 is subjected to the gravity of the crude methyl acetoacetate, the water receiving plate 132 will move downward. Thereby, the power rod 131 at the bottom of the water receiving plate 132 slides in the storage bin 7. When the power rod 131 moves downward, the synchronous plate 133 arranged at the bottom of the power rod 131 will move downward together with the power rod 131. The power spring 134 arranged at the bottom of the synchronous plate 133 can control the synchronous plate 133 and the water receiving plate 132 to reset when the top of the water receiving plate 132 is not subject to gravity. Its function is to convert the falling force of the crude methyl acetoacetate into the power required for discharging hot air.

[0025] The control member 14 includes a discharge pipe 141 arranged at both ends of the storage bin 7, the two discharge pipes 141 are communicated with the storage bin 7, a plurality of through holes 142 are provided on the outer sides of the two discharge pipes 141, two partitions 143 are arranged in the storage bin 7, the two partitions 143 divide the storage bin 7 into three cavities, limiting plates 144 are arranged on opposite sides of the two partitions 143, control plates 145 are slidably arranged in the two limiting plates 144, and the two control plates 145 are respectively arranged at both ends of the synchronous plate 133, rubber plates 146 are arranged in the two control plates 145, exhaust grooves 147 used in conjunction with the two control plates 145 are provided on the two partitions 143, when the synchronous plate 133 moves downward, the control plates 145 arranged at both ends of the synchronous plate 133 will follow the synchronous plate 133 downward, and under the action of the limiting plates 144, the control plates 14 The control panel 145 will not deviate from the trajectory during the falling process. When the control panel 145 moves downward, the rubber sheet 146 disposed in the control panel 145 will move downward with the control panel 145, so that the exhaust groove 147 on the partition 143 is exposed. Since a large amount of air with heat is compressed in the middle cavity of the storage bin 7, when the exhaust groove 147 is exposed, the heat in the storage bin 7 will directly push open the waterproof plate 153 and be discharged along the discharge pipe 141, and discharged into the distillation tank body 2 through the through hole 142, so that the temperature in the distillation tank body 2 is increased. Its function is to discharge or store the air with heat through the sealing and unsealing state of the exhaust groove 147 by the rubber sheet 146. When storing heat, the rubber sheet 146 can produce a slight deformation when the pressure in the storage bin 7 is too large, and the exhaust groove 147 is sealed to avoid heat loss caused by pressure leakage.

[0026] The waterproof component 15 includes a fixing frame 151 arranged on the opposite sides of the two partitions 143, and the two fixing frames 151 are provided with return springs 152 on the opposite sides. The two return springs 152 are provided with waterproof plates 153 used in conjunction with the two exhaust grooves 147 at the opposite ends, and the two waterproof plates 153 are both fitted with the corresponding partitions 143. The fixing frame 151 arranged on one side of the partition 143 can cooperate with the return spring 152 to push the waterproof plate 153, so that the waterproof plate 153 blocks the exhaust groove 147 from the other side of the partition 143 away from the rubber plate 146. After the air and heat in the storage bin 7 are completely discharged, the crude methyl acetoacetate liquid in the distillation tank body 2 is prevented from flowing back through the exhaust groove 147, thereby causing the crude methyl acetoacetate to enter the storage bin 7 and affect the subsequent use. Its function is to isolate the crude methyl acetoacetate liquid outside the storage bin 7.

[0027] A method for purifying methyl acetoacetate: S1: adding crude methyl acetoacetate into the distillation tank body through a feeding pipe; S2: Start the driving source and control the driving rod to rotate clockwise; S3: preheating the crude methyl acetoacetate in the distillation tank body through a preheating system; S4: continuously heating the crude methyl acetoacetate until the crude methyl acetoacetate boils and vaporizes the crude methyl acetoacetate to form steam; S5: completing the purification of crude methyl acetoacetate in the distillation tank body; S6: Start the driving source and control the driving rod to rotate counterclockwise to collect heat; S7: heat collection is completed and the startup source is turned off; S8: adding crude methyl acetoacetate through a feeding tube; S9: Release the heat in the storage bin for preheating.

[0028] When in use, start the driving source, where the driving source is a motor, the motor is a prior art, and no further details are given here. When the motor is started, the motor drives the driving rod 6 at its output end to rotate. When the driving rod 6 rotates clockwise, the preheating system 5 arranged on the top of the driving rod 6 preheats the crude methyl acetoacetate in the distillation tank body 2 during the rotation process, and cooperates with the collecting system 4 to collect the methyl acetoacetate after distillation. After the first purification of methyl acetoacetate is completed, the distillation tank body 2 also has a preservative system. There is a large amount of heat. At this time, the motor controls the driving rod 6 to rotate counterclockwise. When the driving rod 6 rotates counterclockwise, the ratchet 101 arranged on the outside of the driving rod 6 will rotate together with the driving rod 6. When the ratchet 101 rotates counterclockwise with the driving rod 6, the ratchet 101 will move together through the ratchet teeth 105. The torsion spring 106 arranged at the bottom of the ratchet teeth 105 will control the ratchet teeth 105 to reset in time after the ratchet 101 rotates clockwise and lifts the ratchet 101. When the ratchet 101 drives the ratchet teeth 105 to move counterclockwise, The ratchet 105 drives the driving gear 103 to rotate together through the driving shaft 104, so that the driving gear 103 starts to rotate. The bearing 102 arranged at the bottom of the driving gear 103 can support the driving gear 103 while avoiding friction between the driving gear 103 and the distillation tank body 2 to cause kinetic energy loss. When the driving gear 103 rotates, the driving gear 103 drives the transmission gear 112 meshing with it to rotate together. When the transmission gear 112 rotates, the transmission shaft 11 arranged at its axis center 1 will rotate together with the transmission gear 112, thereby causing the transmission block 113 arranged on the top of the transmission shaft 111 to rotate together. The transmission frame 115 arranged in the distillation tank body 2 can limit the position of the transmission shaft 111 to prevent the position of the transmission shaft 111 from being offset during the rotation process. When the transmission block 113 rotates, the transmission groove 114 provided in the transmission block 113 will move together with the transmission block 113, so that the transmission groove 114 rotates with the transmission block 113 around the axis of the transmission shaft 111 as the axis center; When the transmission block 113 drives the transmission groove 114 to move, the sliding rod 121 slidably set in the transmission groove 114 will slide in the transmission block 113 under the action of the transmission groove 114. Since the transmission groove 114 and the transmission block 113 are elliptical, and the U-shaped block is connected to one end of the extrusion rod 122, and the U-shaped rod 123 slides in the two auxiliary tubes 124, the sliding rod 121 set at one end of the extrusion rod 122 reciprocates. At the same time, the reciprocating sliding rod 121 will push the extrusion rod 122 and the U-shaped rod 123 to reciprocate together. When the U-shaped rod 123 reciprocates, the two ends of the U-shaped rod 123 will slide in the corresponding auxiliary tubes 124 respectively, thereby driving the extrusion rods at both ends of the U-shaped rod 123. The plate 125 slides in the auxiliary pipe 124. When the extrusion plate 125 moves toward the transmission block 113, the one-way valve 1 126 in the auxiliary pipe 124 is closed, and the one-way valve 2 128 in the air inlet pipe 127 is opened, so that the air with heat in the distillation tank body 2 is sucked into the auxiliary pipe 124. When the extrusion plate 125 moves toward the one-way valve 1 126, the one-way valve 2 128 is closed, and the one-way valve 1 126 is opened. Under the action of the extrusion plate 125, the air with heat entering the auxiliary pipe 124 will go along the auxiliary pipe 124, pass through the one-way valve 1 126 and enter the storage bin 7. After multiple extrusions, the air with heat in the distillation tank body 2 is completely compressed and stored in the storage bin 7, thereby completing the preservation of heat. When it is necessary to purify the crude methyl acetoacetate, the crude methyl acetoacetate is pumped into the distillation tank body 2 through the feeding pipe 3. When the crude methyl acetoacetate enters the distillation tank body 2 through the feeding pipe 3, the crude methyl acetoacetate liquid is poured on the water receiving plate 132. When the water receiving plate 132 is subjected to the gravity of the crude methyl acetoacetate, the water receiving plate 132 moves downward, so that the power rod 131 at the bottom of the water receiving plate 132 slides in the storage bin 7. When the power rod 131 When the synchronizing plate 133 moves downward, the synchronizing plate 133 arranged at the bottom of the power rod 131 will move downward together with the power rod 131, and the power spring 134 arranged at the bottom of the synchronizing plate 133 can control the synchronizing plate 133 and the water receiving plate 132 to reset when the top of the water receiving plate 132 is not subject to gravity. When the synchronizing plate 133 moves downward, the control plates 145 arranged at both ends of the synchronizing plate 133 will move downward together with the synchronizing plate 133. Under the action of the limit plate 144, the control plate 145 is The falling process will not deviate from the trajectory. When the control board 145 moves downward, the rubber sheet 146 arranged in the control board 145 will move downward with the control board 145, so that the exhaust groove 147 on the partition 143 is exposed. Since a large amount of hot air is compressed in the middle cavity of the storage bin 7, when the exhaust groove 147 is exposed, the heat in the storage bin 7 will directly push open the waterproof plate 153 and be discharged along the discharge pipe 141, and be discharged into the distillation tank body 2 through the through hole 142, so that the temperature in the distillation tank body 2 is increased. The fixing frame 151 arranged on one side of the partition 143 can cooperate with the return spring 152 to push the waterproof plate 153, so that the waterproof plate 153 blocks the exhaust groove 147 from the other side of the partition 143 away from the rubber sheet 146. After the air and heat in the storage bin 7 are completely discharged, the crude methyl acetoacetate liquid in the distillation tank body 2 is prevented from flowing back through the exhaust groove 147, thereby causing the crude methyl acetoacetate to enter the storage bin 7, affecting subsequent use.

[0029] Example 2: Please refer to Fig.11 The present invention provides a technical solution: a water baffle 16 is arranged in the distillation tank body 2, the water baffle 16 is arc-shaped, and the water baffle 16 is located at one end of the feeding pipe 3 close to the distillation tank body 2, and the water baffle 16 is used to intercept the strong impact flow and change the direction of the water flow. When the water pressure of the crude methyl acetoacetate drawn into the feeding pipe 3 is large, the water baffle 16 can prevent the liquid flow from deviating. After the strong water pressure hits the water baffle 16, it will be poured onto the water receiving plate 132 along the water baffle 16, so as to prevent the water receiving plate 132 from failing to function.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A methyl acetoacetate purification device, comprising a bottom plate (1), a distillation tank body (2), a feeding pipe (3), a collecting system (4), and a preheating system (5) arranged in the distillation tank body (2) for preheating, characterized in that: Also includes A driving rod (6) is arranged below the preheating system (5) and connected to an output end of a driving source; A storage bin (7) is arranged in the distillation tank body (2) and is used to store heat generated in the distillation tank body (2) to prepare for subsequent preheating of methyl acetoacetate; A heat collection component (8) is arranged in the distillation tank body (2). When the preheating system (5) rotates counterclockwise, the heat collection component (8) is used to push the heat in the distillation tank body (2) into the storage bin (7), and pressurize the heat in the storage bin (7), so that a large amount of heat is stored in the storage bin (7); A heat discharge component (9) is arranged in the distillation tank body (2), and utilizes the heat discharge component (9) to discharge the heat in the storage bin (7) out of the storage bin (7) and into the methyl acetoacetate in the distillation tank body (2).

2. The methyl acetoacetate purification device according to claim 1, characterized in that: The heat collection assembly (8) comprises a driving member (10) arranged in the distillation tank body (2), and the driving member (10) cooperates with the driving rod (6) to rotate counterclockwise to generate power. A transmission member (11) is arranged in the distillation tank body (2), and the transmission member (11) is used to transfer power for collecting heat in the distillation tank body (2). An extrusion member (12) is arranged in the distillation tank body (2), and the extrusion member (12) is used to collect and squeeze the heat in the distillation tank body (2), so as to drive the heat in the distillation tank body (2) into the storage bin (7).

3. The methyl acetoacetate purification device according to claim 2, characterized in that: The driving member (10) comprises a ratchet (101) arranged on the outside of the driving rod (6); a bearing (102) is arranged in the distillation tank body (2); the inner ring of the bearing (102) is arranged at the bottom of the inner wall of the distillation tank body (2); a driving gear (103) is arranged on the top of the outer ring of the bearing (102); a driving shaft (104) is arranged on the top of the driving gear (103); a ratchet (105) for use with the ratchet (101) is rotatably arranged on the outside of the driving shaft (104); a torsion spring (106) is arranged on the outside of the driving shaft (104); an end of the torsion spring (106) away from the driving shaft (104) is arranged on the ratchet (105).

4. The methyl acetoacetate purification device according to claim 3, characterized in that: The transmission member (11) comprises a transmission shaft (111) rotatably arranged in the distillation tank body (2); a transmission gear (112) meshing with the driving gear (103) is arranged on the outer side of the transmission shaft (111); a transmission block (113) is arranged on the top of the transmission shaft (111); a transmission groove (114) is formed in the transmission block (113); and both the transmission block (113) and the transmission groove (114) are elliptical; a transmission frame (115) is arranged in the distillation tank body (2); and the transmission shaft (111) penetrates through and is rotatably arranged in the transmission frame (115).

5. The methyl acetoacetate purification device according to claim 4, characterized in that: The extrusion member (12) comprises a sliding rod (121) slidably arranged in the transmission groove (114); an extrusion rod (122) is arranged on a side of the sliding rod (121) away from the transmission block (113); a U-shaped rod (123) is arranged on an end of the extrusion rod (122) away from the sliding rod (121); two auxiliary tubes (124) are arranged on the top of the storage bin (7); the two auxiliary tubes (124) are communicated with the storage bin (7); the two ends of the U-shaped rod (123) are respectively slidably arranged in the two auxiliary tubes (124); the two ends of the U-shaped rod (123) are respectively provided with extrusion plates (125); and the two extrusion plates (125) are respectively slidably arranged on the corresponding A one-way valve (126) is disposed in each of the auxiliary tubes (124), and the opening directions of the two one-way valves (126) are both away from the U-shaped rod (123). An air intake pipe (127) is disposed at the top of each of the auxiliary tubes (124), and the two air intake pipes (127) are both arc-shaped, and the ends of the two air intake pipes (127) away from the two auxiliary tubes (124) are bent in opposite directions. A one-way valve (128) is disposed in each of the two air intake pipes (127), and the opening directions of the two one-way valves (128) are opposite to each other. The two air intake pipes (127) are respectively located between the two one-way valves (126) and the two extrusion plates (125).

6. The methyl acetoacetate purification device according to claim 5, characterized in that: The heat discharge component (9) comprises a water flow power member (13) arranged outside the storage bin (7), and uses the water flow power member (13) to generate kinetic energy to discharge the heat in the storage bin (7). A control member (14) is arranged in the storage bin (7), and uses the control member (14) to control the discharge and storage of heat in the storage bin (7). A waterproof member (15) is arranged in the storage bin (7), and uses the waterproof member (15) to control the storage bin (7) to keep dry.

7. The methyl acetoacetate purification device according to claim 6, characterized in that: The water flow power member (13) comprises a power rod (131) slidably arranged in the storage bin (7), a water receiving plate (132) being arranged at the top of the power rod (131), a synchronization plate (133) being arranged at the bottom of the power rod (131), and two power springs (134) being arranged at the bottom of the synchronization plate (133).

8. The methyl acetoacetate purification device according to claim 7, characterized in that: The control member (14) comprises a discharge pipe (141) arranged at both ends of the storage bin (7), the two discharge pipes (141) are both in communication with the storage bin (7), a plurality of through holes (142) are provided on the outer sides of the two discharge pipes (141), two partitions (143) are provided in the storage bin (7), the two partitions (143) divide the storage bin (7) into three cavities, limiting plates (144) are provided on opposite sides of the two partitions (143), control plates (145) are slidably provided in the two limiting plates (144), and the two control plates (145) are respectively arranged at both ends of the synchronization plate (133), rubber plates (146) are provided in the two control plates (145), and exhaust grooves (147) used in conjunction with the two control plates (145) are provided on the two partitions (143); The waterproof component (15) comprises a fixing frame (151) arranged on the opposite sides of the two partitions (143), and the two fixing frames (151) are provided with a return spring (152) on the opposite sides thereof, and the two return springs (152) are provided with a waterproof plate (153) for use in conjunction with the two exhaust grooves (147) at the opposite ends thereof, and the two waterproof plates (153) are both in contact with the corresponding partitions (143).

9. The methyl acetoacetate purification device according to claim 8, characterized in that: A water baffle (16) is arranged in the distillation tank body (2). The water baffle (16) is arc-shaped and is located at one end of the feeding pipe (3) close to the distillation tank body (2). The water baffle (16) is used to intercept a strong impact flow and change the direction of the water flow.

10. A purification method applied to the methyl acetoacetate purification device according to claim 9, characterized in that: The steps include: S1: adding crude methyl acetoacetate into the distillation tank body through a feeding pipe; S2: Start the driving source and control the driving rod to rotate clockwise; S3: preheating the crude methyl acetoacetate in the distillation tank body through a preheating system; S4: continuously heating the crude methyl acetoacetate until the crude methyl acetoacetate boils and vaporizes the crude methyl acetoacetate to form steam; S5: completing the purification of crude methyl acetoacetate in the distillation tank body; S6: Start the driving source and control the driving rod to rotate counterclockwise to collect heat; S7: heat collection is completed and the startup source is turned off; S8: adding crude methyl acetoacetate through a feeding tube; S9: Release the heat in the storage bin for preheating.

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