Rectification device for preparing pinacolone crude product

Abstract

The invention relates to the technical field of pinacolone rectification, in particular to a rectification device for pinacolone crude product preparation, which comprises a rectification filter pipe and a connecting seat, the top end of the rectification filter pipe is provided with a top seat through the connecting seat, the bottom end of the rectification filter pipe is provided with a bottom seat through the connecting seat, and the side surfaces of the top seat and the bottom seat are both provided with connection clamping seats. The multiple sets of communicating clamping bases connect the multiple sets of top bases and the multiple sets of bottom bases, and condensation pipes are arranged between the upper communicating clamping base and the lower communicating clamping base. Through arrangement of the rectification filter pipe, the connecting seat, the top seat, the base, the connection clamping seat, the condensation pipe and the collection seat, continuous and efficient continuous rectification operation of pinacolone crude product preparation can be achieved, in the actual use process, a worker injects the pinacolone crude product needing rectification from the base on the outermost edge firstly, and then the pinacolone crude product needing rectification is subjected to continuous rectification; at the moment, heating rectification of the pinacolone crude product can be carried out in the base, and rectified gas can pass through the rectification filter pipe to finish rectification and filtration.

Description

Technical Field

[0001] The present invention relates to the technical field of pinacolone rectification, and specifically to a rectification device for preparing crude pinacolone. Background Art

[0002] Pinacolone is an organic compound, a colorless and transparent liquid, soluble in ethanol, ether, acetone, slightly soluble in water, with volatile vapor and a mint smell. It is commonly used as a solvent and extractant, and can also be used in organic synthesis. It is stored in a cool and ventilated warehouse, away from fire sources and heat sources, and the warehouse temperature should not exceed 37 °C. Keep the container sealed, and it should be stored separately from oxidants. Avoid mixed storage. Use explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generate sparks. The storage area should be equipped with leakage emergency treatment equipment and appropriate containment materials. It is commonly used as a solvent and extractant, and can also be used in organic synthesis, for the production of pesticide fungicides such as bixafen, triadimefon, triadimenol, bitertanol, diniconazole, and fenbuconazole, as well as plant growth regulators such as paclobutrazol, uniconazole, flumetralin, chlormequat chloride, and imazalil-methyl, and also for the production of herbicides and pharmaceutical products. Rectification is a separation process that separates each component of a mixture based on the different volatilities of each component. Commonly used equipment includes plate rectification towers and packed rectification towers. The principle and equipment process of precision rectification are the same as those of ordinary rectification, except that the relative volatility between the components in the material system to be separated is smaller, so high-efficiency precision packing is used to achieve the separation and purification of the components to be separated.

[0003] For example, the patent document with the publication number CN 219251690 U discloses a double reflux mechanism for rectifying crude pinacolone, including a reaction device and a double reflux mechanism. A reaction flask is clamped and connected to one side surface of the reaction device. A U-shaped tube is slidably connected to the outer surface of the reaction flask. A reflux tube is penetratively connected to the outer surface of the U-shaped tube. A double reflux mechanism is arranged on one end surface of the reflux tube. A support mechanism is arranged on the outer surface of the reaction flask. When double reflux of the reaction device is required, the reaction device is connected to a first collection bottle. The first collection bottle is connected to a first connecting tube. The first connecting tube is connected to a first adapter tube. The reacted pinacolone enters the interior of the first collection bottle through the first connecting tube and the first connecting tube. The reflux tube is connected to a second adapter tube. The second adapter tube is connected to a second connecting tube. The second connecting tube is connected to a second collection bottle. Then the pinacolone enters the second collection bottle through the second adapter tube and the second connecting tube, thus completing the double reflux effect during the reaction of pinacolone.

[0004] However, when this structure is used for rectification in the preparation of crude pinacolone, due to the limitations of its own structure, it often can only carry out the operation of rectifying and condensing and collecting crude pinacolone one by one. After that, the rectified pinacolone raw material needs to be rectified again. A batch of crude pinacolone raw materials often needs to go through multiple rectification operations, which leads to the repeated operation of the entire rectification equipment for an extremely long time. The overall rectification efficiency is relatively low, and the damage to heat energy is also relatively large. It is impossible to achieve the efficient continuous rectification preparation operation suitable for crude pinacolone. At the same time, the whole equipment cannot realize the rapid disassembly and assembly combination operation between rectification devices, cannot achieve a more firm and reliable connection in use, and subsequent rapid maintenance operations cannot be carried out for individual rectification positions, unable to meet the daily use requirements. Therefore, it is urgent to design a rectification device for the preparation of crude pinacolone to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a rectification device for the preparation of crude pinacolone, so as to solve the problem raised in the above background technology that when the existing structure is used for rectification in the preparation of crude pinacolone, due to the limitations of its own structure, it often can only carry out the operation of rectifying and condensing and collecting crude pinacolone one by one. After that, the rectified pinacolone raw material needs to be rectified again. A batch of crude pinacolone raw materials often needs to go through multiple rectification operations, which leads to the repeated operation of the entire rectification equipment for an extremely long time. The overall rectification efficiency is relatively low, and the damage to heat energy is also relatively large. It is impossible to achieve the efficient continuous rectification preparation operation suitable for crude pinacolone. At the same time, the whole equipment cannot realize the rapid disassembly and assembly combination operation between rectification devices, cannot achieve a more firm and reliable connection in use, and subsequent rapid maintenance operations cannot be carried out for individual rectification positions, unable to meet the daily use requirements.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A rectification device for the preparation of crude pinacolone, including a rectification filter tube, the upper and lower ends of the rectification filter tube are fixedly connected with connection seats, the top of the rectification filter tube is provided with a top seat through the connection seat, the bottom of the rectification filter tube is provided with a bottom seat through the connection seat, the sides of the top seat and the bottom seat are both provided with connecting clamping seats, multiple groups of the connecting clamping seats connect multiple groups of the top seat and the bottom seat, a condensing tube is arranged between the upper and lower connecting clamping seats, one end of the edge connecting clamping seat is provided with a collecting seat, and a collecting tank is fixedly connected between the collecting seats;

[0007] A pressurizing frame and an air supply bottom frame, a pressurizing frame is arranged on the side of the collecting tank, the bottom of the rectification filter tube is evenly provided with an air supply bottom frame, an insulating plate is arranged at the center inside the air supply bottom frame, an air inlet pipe is arranged on one side of the insulating plate, an air outlet pipe is arranged on the other side of the insulating plate, an air ventilation frame is fixedly connected to the surface of the air supply bottom frame, an installation card slot is opened on the surface of the air ventilation frame, and a pressurizing unit is arranged inside the pressurizing frame.

[0008] Preferably, pressure pipes are fixedly connected to the upper and lower ends of the pressure frame. A plurality of gas transmission pipes are arranged at one end of the pressure pipe, and a gas transmission valve seat is arranged between the gas transmission pipes.

[0009] Preferably, inflation seats are fixedly connected to the centers of the upper and lower ends of the connection socket, and the inflation seats are communicated with the gas transmission valve seat.

[0010] Preferably, a telescopic airbag is arranged at one end of the upper and lower connection sockets in a staggered manner, and a docking valve seat is fixedly connected to one end of the telescopic airbag.

[0011] Preferably, arc-shaped clamping grooves are formed at both ends of the connection socket, a sealing gasket is arranged on the inner wall of the arc-shaped clamping groove, and sealing strips are arranged at both ends of the arc-shaped clamping groove.

[0012] Preferably, a condensation hole groove is arranged on the side surface of the connection socket. An inner container is arranged inside the condensation pipe, a condensation ring groove is arranged between the condensation pipe and the inner container, and a condensation wire rack is arranged inside the inner container.

[0013] Preferably, a scale line is arranged on the side surface of the collection tank, and a discharge valve seat is arranged at the top end of the collection seat.

[0014] Preferably, a pressure relief valve seat is arranged inside the top seat, and a sampling head is arranged on the surface of the pressure relief valve seat.

[0015] Preferably, a filter inner core is arranged at the center inside the top seat and the bottom seat. Plug-in socket seats are arranged at one ends of the upper and lower filter inner cores in a staggered manner. A sealing cover is arranged inside the plug-in socket seat. Connecting arc seats are fixedly connected to both ends of the bottom of the bottom seat, and a connection valve seat is arranged on the side surface of the connecting arc seat.

[0016] Preferably, an accelerating fan is arranged inside the connection seat, and a filter core is arranged on the surface of the accelerating fan.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The rectification device for preparing crude pinacolone, through the set rectification filter tube, connecting seat, top seat, base, connecting socket, condenser tube, collection seat, collection tank, arc-shaped card slot, sealing gasket, sealing strip, condensation hole slot, inner container, condensation ring slot, condensation wire frame, scale line, discharge valve seat, pressure relief valve seat, sampling head, filter inner core, acceleration fan and filter core, can enable the continuous and efficient continuous rectification operation of crude pinacolone preparation. In the actual use process, the staff first injects the crude pinacolone to be rectified from the outermost base. At this time, the base can heat and rectify the crude pinacolone inside. The rectified gas can pass through the rectification filter tube to complete rectification filtration. And at the connecting seats at the upper and lower ends of the rectification filter tube, through the internal acceleration fan and filter core, the flow efficiency of the gas flow inside the rectification filter tube can be effectively increased, improving the overall rectification efficiency. Then the gas flow enters the top seat at the top of the rectification filter tube, and then through the connecting socket, the rectified gas flow is guided into the inside of the condenser tube. At this time, through the condensation hole slots on the sides of the upper and lower connecting sockets, the condensed gas flow flows at the condensation ring slot between the condenser tube and the inner container, and then the rectified gas flow passing through the condensation ring slot inside the inner container is efficiently condensed. The condensed pinacolone liquid raw material can finally flow into the inside of the next base from the bottom connecting socket. The filter inner core inside the base can filter and process each pinacolone raw material. At the same time, in daily use, multiple groups of rectification filter tubes and condenser tubes that are compatible with the preparation of crude pinacolone can be quickly docked and installed through the connecting socket. The connecting socket is quickly clamped and fixed to adjacent two top seats and bases through the arc-shaped card slots opened at both ends. The upper and lower connecting sockets connect the rectification filter tube and the condenser tube in series to form an S-shaped continuous distillation path. The sealing gaskets and sealing strips on the inner wall and both ends of the arc-shaped card slot are hermetically docked. Thus, for the continuous rectification equipment, the pinacolone that has completed multiple rectification treatments can finally be collected into the inside of the collection tank to complete the rectification operation. The equipment quickly realizes the continuous and stable rectification treatment operation of the pinacolone raw material, reflecting the practicality of the equipment design.

[0019] The rectification device for preparing crude pinacolone further improves the overall use effect of the equipment through the set rectification filter pipes, top seats, bottom seats, connection card seats, pressurizing frames, gas transmission bottom frames, heat insulation plates, inlet pipes, outlet pipes, ventilation frames, installation card slots, pressurizing units, pressurizing pipes, gas transmission pipes, gas transmission valve seats, inflation seats, telescopic air bags, docking valve seats, plug-in socket seats, sealing card covers, gas connection arc seats and connection valve seats. During daily use, after multiple groups of rectification filter pipes and condenser pipes are connected and installed through the connection card seats, the pressurizing frame can be installed on one side of the collection tank, and the top pressurizing pipe can be adaptively installed with multiple gas transmission pipes and gas transmission valve seats. The gas transmission pipes and gas transmission valve seats can be connected to the inflation seats on the surfaces of the upper and lower connection card seats. Then, the pressurizing unit inside the pressurizing frame can perform an inflation operation to simultaneously inflate the telescopic air bags at one end of all the upper and lower connection card seats, extend and retract the telescopic air bags, and make the docking valve seats at one end thereof abut against the plug-in socket seats on the sides of the respective adapted top seats and bottom seats, and push open the sealing card covers inside the plug-in socket seats to perform a more stable clamping and sealing connection operation, thereby ensuring the flow stability of the rectification and collection of pinacolone raw materials. At the same time, during daily use, the bottom seat can be positioned and connected to the inside of the installation card slots of each ventilation frame at the bottom through the gas connection arc seats and connection valve seats on both sides of the bottom. The inlet pipe and outlet pipe separated by the heat insulation plate inside the gas transmission bottom frame can cooperate with the ventilation frame to input the rectification heat energy steam into the inside of the bottom seat, so as to adaptively provide the rectification heat energy inside each bottom seat, greatly improving the overall energy-saving effect of the equipment and reflecting the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 is an overall schematic diagram of the connection card seat structure of the present invention;

[0022] Figure 3 is an overall schematic diagram of the rectification filter pipe structure of the present invention;

[0023] Figure 4 is a partial view schematic diagram of the top seat and bottom seat structures of the present invention;

[0024] Figure 5 is an overall schematic diagram of the condenser pipe structure of the present invention;

[0025] Figure 6 is an overall schematic diagram of the collection tank structure of the present invention;

[0026] Figure 7 For the present invention Figure 1 is an enlarged schematic diagram of the structure at A in;

[0027] Figure 8 For the present invention Figure 2 is an enlarged schematic diagram of the structure at B in.

[0028] In the figure: 1, rectifying filter tube; 2, connecting seat; 3, top seat; 4, base; 5, connecting socket; 6, condenser tube; 7, collecting seat; 8, collecting tank; 9, pressurizing frame; 10, air delivery bottom frame; 11, heat insulation plate; 12, intake pipe; 13, outlet pipe; 14, ventilation frame; 15, installation card slot; 16, pressurizing unit; 17, pressurizing pipe; 18, air delivery pipe; 19, air delivery valve seat; 20, inflation seat; 21, telescopic airbag; 22, docking valve seat; 23, arc-shaped card slot; 24, sealing gasket; 25, sealing strip; 26, condensation hole slot; 27, inner container; 28, condensation ring slot; 29, condensation wire frame; 30, scale line; 31, discharge valve seat; 32, pressure relief valve seat; 33, sampling head; 34, filter inner core; 35, plug-in socket seat; 36, sealing card cover; 37, air connection arc seat; 38, connecting valve seat; 39, accelerating fan; 40, filter element. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1-8 , an embodiment provided by the present invention:

[0031] A rectification device for preparing crude pinacolone, comprising a rectification filter tube 1. The upper and lower ends of the rectification filter tube 1 are fixedly connected with connecting seats 2. A top seat 3 is arranged at the top of the rectification filter tube 1 through the connecting seat 2. A bottom seat 4 is arranged at the bottom of the rectification filter tube 1 through the connecting seat 2. Connecting chucks 5 are arranged on the sides of the top seat 3 and the bottom seat 4. Multiple groups of connecting chucks 5 connect multiple groups of top seats 3 and bottom seats 4. A condenser tube 6 is arranged between the upper and lower connecting chucks 5. One end of the edge connecting chuck 5 is provided with a collection seat 7. A collection tank 8 is fixedly connected between the collection seats 7. A scale line 30 is arranged on the side of the collection tank 8. A discharge valve seat 31 is arranged at the top of the collection seat 7. A pressure relief valve seat 32 is arranged inside the top seat 3. A sampling head 33 is arranged on the surface of the pressure relief valve seat 32. A filter core 34 is arranged at the center inside the top seat 3 and the bottom seat 4. One end of the upper and lower filter cores 34 is staggeredly provided with a plug-in socket 35. A sealing cover 36 is arranged inside the plug-in socket 35. Two ends at the bottom of the bottom seat 4 are fixedly connected with gas connection arc seats 37. A connection valve seat 38 is arranged on the side of the gas connection arc seat 37. An accelerating fan 39 is arranged inside the connecting seat 2. A filter core 40 is arranged on the surface of the accelerating fan 39. Usually, multiple groups of rectification filter tubes 1 and condenser tubes 6 suitable for the preparation of crude pinacolone can be quickly connected and installed through the connecting chucks 5. The connecting chucks 5 are quickly clamped and fixed to adjacent two groups of top seats 3 and bottom seats 4 through the arc-shaped clamping grooves 23 opened at both ends. The upper and lower connecting chucks 5 connect the rectification filter tube 1 and the condenser tube 6 in series to form an S-shaped continuous distillation path. The sealing gaskets 24 and sealing strips 25 on the inner wall and both ends of the arc-shaped clamping groove 23 are hermetically connected, thereby forming a continuous rectification device.

[0032] The pressurizing frame 9 and the air delivery bottom frame 10 are provided. The pressurizing frame 9 is arranged on the side of the collection tank 8. The bottom of the rectifying filter pipe 1 is evenly provided with the air delivery bottom frame 10. The inner center of the air delivery bottom frame 10 is provided with a heat insulation plate 11. One side of the heat insulation plate 11 is provided with an air inlet pipe 12, and the other side of the heat insulation plate 11 is provided with an air outlet pipe 13. The surface of the air delivery bottom frame 10 is fixedly connected with an air ventilation frame 14. The surface of the air ventilation frame 14 is provided with an installation card slot 15. The inside of the pressurizing frame 9 is provided with a pressurizing unit 16. The upper and lower ends of the pressurizing frame 9 are fixedly connected with a pressurizing pipe 17. One end of the pressurizing pipe 17 is provided with multiple air delivery pipes 18. An air delivery valve seat 19 is arranged between the air delivery pipes 18. The centers of the upper and lower ends of the connection card seat 5 are fixedly connected with an inflation seat 20. The inflation seat 20 is communicated with the air delivery valve seat 19. The ends of the upper and lower connection card seats 5 are staggeredly provided with a telescopic airbag 21. One end of the telescopic airbag 21 is fixedly connected with a docking valve seat 22. The two ends of the connection card seat 5 are provided with arc-shaped card slots 23. The inner wall of the arc-shaped card slot 23 is provided with a sealing gasket 24. Sealing strips 25 are arranged at both ends of the arc-shaped card slot 23. The side of the connection card seat 5 is provided with a condensation hole groove 26. The inside of the condensation pipe 6 is provided with an inner tank 27. A condensation ring groove 28 is arranged between the condensation pipe 6 and the inner tank 27. The inside of the inner tank 27 is provided with a condensation wire frame 29. Through the base 4, the air intake arc seat 37 and the connection valve seat 38 on both sides of the bottom can be used for positioning and docking operations inside the installation card slot 15 of each air ventilation frame 14 at the bottom. Usually, the air inlet pipe 12 and the air outlet pipe 13 separated by the heat insulation plate 11 inside the air delivery bottom frame 10 can cooperate with the air ventilation frame 14 to input the rectifying heat energy steam into the inside of the base 4, so as to adaptively provide the rectifying heat energy inside each base 4.

[0033] Working principle: When in use, the operator first injects the crude pinacolone to be rectified from the outermost base 4. At this time, the inside of the base 4 can heat and rectify the crude pinacolone. The rectified gas can pass through the rectification filter tube 1 to complete rectification and filtration. The connecting seats 2 at the upper and lower ends of the rectification filter tube 1 are equipped with an internal acceleration fan 39 and a filter core 40, which can effectively improve the flow efficiency of the gas flow inside the rectification filter tube 1 and enhance the overall rectification efficiency. Then the gas flow enters the top seat 3 at the top of the rectification filter tube 1, and then through the connecting clamp seat 5, the rectified gas flow is guided into the inside of the condenser tube 6. At this time, through the condensation hole grooves 26 on the side of the upper and lower connecting clamp seats 5, the condensed gas flow flows through the condensation ring groove 28 between the condenser tube 6 and the inner tank 27, and then the rectified gas flow passing through the condensation ring groove 28 inside the inner tank 27 is efficiently condensed. The condensed pinacolone liquid raw material can finally flow into the inside of the next base 4 from the bottom connecting clamp seat 5. The filter inner core 34 inside the base 4 can filter and process each batch of pinacolone raw material. At the same time, in daily use, multiple groups of rectification filter tubes 1 and condenser tubes 6 that are compatible with the preparation of crude pinacolone can be quickly docked and installed through the connecting clamp seat 5. The connecting clamp seat 5 quickly clamps and fixes the adjacent two top seats 3 and bases 4 through the arc-shaped clamping grooves 23 opened at both ends. The upper and lower connecting clamp seats 5 connect the rectification filter tube 1 and the condenser tube 6 in series to form an S-shaped continuous distillation path. The sealing gaskets 24 and sealing strips 25 on the inner wall and both ends of the arc-shaped clamping groove 23 are hermetically docked, so that the continuous rectification equipment can finally collect the pinacolone after multiple rectification processes into the inside of the collection tank 8 to complete the rectification operation. The equipment can quickly and stably rectify the pinacolone raw material. During daily use, after multiple groups of rectification filter tubes 1 and condenser tubes 6 are docked and installed through the connecting clamp seat 5, the pressurizing frame 9 can be installed on one side of the collection tank 8, and the pressurizing tube 17 at the top can be adaptively installed with multiple gas transmission pipes 18 and gas transmission valve seats 19. The gas transmission pipes 18 and gas transmission valve seats 19 can be connected to the inflation seats 20 on the surface of the upper and lower connecting clamp seats 5. Then, the inflation operation of the pressurizing unit 16 inside the pressurizing frame 9 can simultaneously inflate the telescopic air bags 21 at one end of all the upper and lower connecting clamp seats 5, expand and contract the telescopic air bags 21, and make the docking valve seat 22 at one end thereof abut against the plug-in sleeve seats 35 on the sides of the respective adapted top seats 3 and bases 4, and push open the sealing card cover 36 inside the plug-in sleeve seat 35 to perform a more stable clamping and sealing connection operation, thereby ensuring the flow stability of the rectified pinacolone raw material collection. At the same time, in daily use, the base 4 can be positioned and docked inside the installation slots 15 of each ventilation frame 14 at the bottom through the air connection arc seats 37 and connection valve seats 38 on both sides of the bottom. The intake pipe 12 and the exhaust pipe 13 separated by the heat insulation plate 11 inside the gas transmission bottom frame 10 can cooperate with the ventilation frame 14 to input the rectification heat energy steam into the inside of the base 4, so as to adaptively provide the rectification heat energy inside each base 4.Greatly improve the overall energy-saving effect of the device. The above is the entire working principle of the present invention.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A distillation device for preparing crude pinacolone, comprising a distillation filter tube (1), characterized in that: The upper and lower ends of the distillation filter tube (1) are fixedly connected with a connecting seat (2); the top end of the distillation filter tube (1) is provided with a top seat (3) through the connecting seat (2); the bottom end of the distillation filter tube (1) is provided with a base (4) through the connecting seat (2); the sides of the top seat (3) and the base (4) are both provided with a connecting seat (5); a plurality of groups of the connecting seats (5) connect the plurality of groups of the top seats (3) and the base (4); a condensing tube (6) is provided between the upper and lower connecting seats (5); a collecting seat (7) is provided at one end of the edge of the connecting seat (5); a collecting tank (8) is fixedly connected between the collecting seats (7); A pressure frame (9) and a gas transmission frame (10), wherein the side of the collecting tank (8) is provided with a pressure frame (9), the bottom of the distillation filter tube (1) is evenly provided with a gas transmission frame (10), the inner center of the gas transmission frame (10) is provided with a heat insulation board (11), one side of the heat insulation board (11) is provided with an air inlet pipe (12), and the other side of the heat insulation board (11) is provided with an air outlet pipe (13), the surface of the gas transmission frame (10) is fixedly connected with a ventilation frame (14), the surface of the ventilation frame (14) is provided with a mounting slot (15), and a pressure unit (16) is provided inside the pressure frame (9).

2. A rectification device for preparing a crude pinacolone according to claim 1, characterized in that: The upper and lower ends of the pressurizing frame (9) are fixedly connected with a pressurizing pipe (17), one end of the pressurizing pipe (17) is provided with a plurality of gas supply pipes (18), and a gas supply valve seat (19) is provided between the gas supply pipes (18).

3. A rectification device for preparing a crude pinacolone according to claim 2, characterized in that: The centers of the upper and lower ends of the connection card seat (5) are fixedly connected with an inflation seat (20), and the inflation seat (20) is connected to the gas delivery valve seat (19).

4. A rectification device for preparing a crude pinacolone according to claim 1, characterized in that: One end of the upper and lower connection sockets (5) is staggeredly provided with a telescopic airbag (21), and one end of the telescopic airbag (21) is fixedly connected to a docking valve seat (22).

5. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: The two ends of the connection card seat (5) are provided with arc-shaped card slots (23), the inner wall of the arc-shaped card slot (23) is provided with a sealing gasket (24), and the two ends of the arc-shaped card slot (23) are provided with sealing strips (25).

6. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: A condensation hole groove (26) is provided on the side of the connection card seat (5), an inner liner (27) is provided inside the condensation tube (6), a condensation ring groove (28) is provided between the condensation tube (6) and the inner liner (27), and a condensation grid (29) is provided inside the inner liner (27).

7. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: The side of the collecting tank (8) is provided with a scale line (30), and the top of the collecting seat (7) is provided with a discharge valve seat (31).

8. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: A pressure relief valve seat (32) is arranged inside the top seat (3), and a sampling head (33) is arranged on the surface of the pressure relief valve seat (32).

9. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: A filter core (34) is disposed at the inner center of the top seat (3) and the base seat (4); a plug-in sleeve (35) is disposed at one end of the upper and lower filter cores (34) in a staggered manner; a sealing card cover (36) is disposed inside the plug-in sleeve (35); and air arc seats (37) are fixedly connected at both ends of the bottom of the base (4); a connecting valve seat (38) is disposed on the side of the air arc seat (37).

10. A distillation device for preparing a crude pinacolone according to claim 1, characterized in that: An accelerating fan (39) is arranged inside the connecting seat (2), and a filter element (40) is arranged on the surface of the accelerating fan (39).

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