Batch rectification purification device for dimethyl sulfoxide

Abstract

The utility model discloses a batch rectification purification device of dimethyl sulfoxide, which comprises a base plate, the upper end of the base plate is fixedly connected with a reaction kettle, the upper end of the base plate is fixedly connected with a distillation tower, the upper end of the base plate is fixedly connected with a first liquid pump, and the input end of the first liquid pump is fixedly connected with the reaction kettle through a first guide pipe; the output end of the first liquid pump is fixedly connected with the distillation tower through a second guide pipe, the upper end of the base plate is fixedly connected with a first heater and a second heater, the first heater is fixedly connected with the reaction kettle through a first heat conduction pipe, and the second heater is fixedly connected with the distillation tower through a second heat conduction pipe. The hydraulic cylinder, the pressurizing chamber, the hydraulic rod, the pressurizing plate, the pressurizing pipe, the reaction kettle and the distillation tower form a pressurizing mechanism, so that the preparation and distillation process can be shortened by pressurizing, and the efficiency is improved; the liquid pump, the air pump, the steam pump, the guide pipe, the methanol tank, the sulfur dioxide tank, the condenser and the collecting tank form a material conveying and collecting mechanism, so that the process is simplified, and the workload is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical rectification and purification, in particular to an intermittent rectification and purification device for dimethyl sulfoxide. Background Art

[0002] When the existing intermittent rectification and purification device for dimethyl sulfoxide is used for the preparation, rectification and purification of dimethyl sulfoxide, the processes of preparation, rectification and purification are relatively long, consuming a large amount of time, and the production efficiency of the device is not high. The Chinese patent discloses an "intermittent rectification and purification device for dimethyl sulfoxide" with the application number "CN202123060742.8", which includes a first rectification tower. The first rectification tower is provided with a first light-phase extraction port, and the first light-phase extraction port is communicated with a first collection tank through a first condenser. It also includes a second rectification tower. The second rectification tower is provided with a tower kettle feed port. The first condenser is also communicated with a buffer tank, and the buffer tank is communicated with the tower kettle feed port. A dimethyl sulfoxide extraction port is arranged in the middle of the stripping section of the second rectification tower. Both the first rectification tower and the second rectification tower are communicated with a vacuum pumping device. This intermittent rectification and purification device for dimethyl sulfoxide meets the requirements for the recovery and purification of waste liquid with a dimethyl sulfoxide content of 60-70%. However, the processes of preparation, rectification and purification of the device are slow, and the production efficiency of the device is limited. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an intermittent rectification and purification device for dimethyl sulfoxide. A pressurizing mechanism is composed of a hydraulic cylinder, a pressurizing chamber, a hydraulic rod, a pressurizing plate, a pressurizing pipe, a reaction kettle and a distillation tower, which can pressurize the preparation process and the distillation process to shorten the preparation and distillation processes, and the production efficiency of the device is improved; A material transportation and collection mechanism is composed of a liquid pump, a gas pump, a steam pump, a conduit, a methanol tank, a sulfur dioxide tank, a condenser and a collection tank, which simplifies the operation process and saves the workload.

[0004] The present utility model also provides an intermittent rectification and purification device for dimethyl sulfoxide having the above-mentioned one, comprising: a substrate, a reaction kettle fixedly connected to the upper end of the substrate, a distillation column fixedly connected to the upper end of the substrate, a first liquid pump fixedly connected to the upper end of the substrate, an input end of the first liquid pump fixedly connected to the reaction kettle through a first conduit, an output end of the first liquid pump fixedly connected to the distillation column through a second conduit, a first heater and a second heater fixedly connected to the upper end of the substrate, the first heater fixedly connected to the reaction kettle through a first heat conduction pipe, and the second heater fixedly connected to the distillation column through a second heat conduction pipe; a first hydraulic cylinder, a lower end of the first hydraulic cylinder fixedly connected to the upper end of the substrate, an upper end of the first hydraulic cylinder fixedly connected to a first pressurizing chamber, the first pressurizing chamber fixedly connected to the reaction kettle through a first pressurizing pipe, an upper end of the first hydraulic cylinder fixedly connected to a first pressing plate through a first hydraulic rod, and the first pressing plate being located inside the first pressurizing chamber; a second hydraulic cylinder, a lower end of the second hydraulic cylinder fixedly connected to the upper end of the substrate, an upper end of the second hydraulic cylinder fixedly connected to a second pressurizing chamber, the second pressurizing chamber fixedly connected to the distillation column through a second pressurizing pipe, an upper end of the second hydraulic cylinder fixedly connected to a second pressing plate through a second hydraulic rod, and the second pressing plate being located inside the second pressurizing chamber.

[0005] According to the intermittent rectification and purification device for dimethyl sulfoxide of the present utility model, rollers are fixedly connected to the lower end of the substrate, and the rollers are located at four corners of the lower end of the substrate. It is convenient for the movement of the device and improves the convenience of use of the device.

[0006] According to the intermittent rectification and purification device for dimethyl sulfoxide of the present utility model, a methanol tank is fixedly connected to the upper end of the substrate, a first tank cover is arranged on the upper end of the methanol tank, a sulfur dioxide tank is fixedly connected to the upper end of the substrate, and a second tank cover is arranged on the upper end of the sulfur dioxide tank. It is convenient for the storage and timely supply of raw materials.

[0007] According to the intermittent rectification and purification device for dimethyl sulfoxide of the present utility model, a second liquid pump is fixedly connected to the upper end of the substrate, an input end of the second liquid pump is fixedly connected to the methanol tank through a third conduit, and an output end of the second liquid pump is fixedly connected to the reaction kettle through a fourth conduit. It is convenient for the rapid transportation of methanol.

[0008] According to the intermittent rectification and purification device for dimethyl sulfoxide of the present utility model, an air pump is fixedly connected to the upper end of the substrate, an input end of the air pump is fixedly connected to the sulfur dioxide tank through a fifth conduit, and an output end of the air pump is fixedly connected to the reaction kettle through a sixth conduit. It is convenient for the rapid transportation of sulfur dioxide.

[0009] An intermittent rectification and purification device for dimethyl sulfoxide according to the present utility model, a condenser is fixedly connected to the upper end of the substrate, a collection tank is fixedly connected to the upper end of the substrate, and a third tank cover is arranged at the upper end of the collection tank. It is convenient for the condensation and liquefaction and collection of dimethyl sulfoxide.

[0010] An intermittent rectification and purification device for dimethyl sulfoxide according to the present utility model, a steam pump is fixedly connected to the upper end of the substrate, the input end of the steam pump is fixedly connected to the distillation column through a seventh conduit, and the output end of the steam pump is fixedly connected to the condenser through an eighth conduit. It is convenient for the rapid transportation of dimethyl sulfoxide vapor.

[0011] An intermittent rectification and purification device for dimethyl sulfoxide according to the present utility model, a third liquid pump is fixedly connected to the upper end of the substrate, the input end of the third liquid pump is fixedly connected to the condenser through a ninth conduit, and the output end of the third liquid pump is fixedly connected to the collection tank through a tenth conduit. It is convenient for the collection after the purification of dimethyl sulfoxide.

[0012] Beneficial effects

[0013] 1. Compared with the prior art, for the intermittent rectification and purification device of dimethyl sulfoxide, a pressurization mechanism is composed of a hydraulic cylinder, a pressurization chamber, a hydraulic rod, a pressurization plate, a pressurization pipe, a reaction kettle and a distillation column, which can pressurize the preparation process and the distillation process to shorten the preparation and distillation processes, and the production efficiency of the device is improved;

[0014] 2. Compared with the prior art, for the intermittent rectification and purification device of dimethyl sulfoxide, a material transportation and collection mechanism is composed of a liquid pump, a gas pump, a steam pump, conduits, a methanol tank, a sulfur dioxide tank, a condenser and a collection tank, which simplifies the operation process and saves the operation amount. Description of the drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a schematic structural diagram of an intermittent rectification and purification device for dimethyl sulfoxide of the present utility model;

[0017] Figure 2 It is a top view structural diagram of an intermittent rectification and purification device for dimethyl sulfoxide of the present utility model;

[0018] Figure 3 It is a sectional structural diagram of an intermittent rectification and purification device for dimethyl sulfoxide of the present utility model;

[0019] Figure 4 It is a schematic connection structure diagram of the reaction kettle of an intermittent rectification and purification device for dimethyl sulfoxide of the present utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure of the distillation column of an intermittent rectification and purification device for dimethyl sulfoxide according to the present utility model.

[0021] Legend:

[0022] 1. Substrate; 2. Sixth conduit; 3. Eighth conduit; 4. Condenser; 5. Seventh conduit; 6. Second conduit; 7. First liquid pump; 8. Air pump; 9. First conduit; 10. Sixth conduit; 11. Reactor; 12. Second tank cover; 13. Sulfur dioxide tank; 14. First tank cover; 15. Second liquid pump; 16. Methanol tank; 17. Third conduit; 18. First pressure pipe; 19. First heater; 20. First heat conduction pipe; 21. Second pressure pipe; 22. Second heater; 23. Second heat conduction pipe; 24. Third tank cover; 25. Collection tank; 26. Distillation column; 27. Steam pump; 28. Tenth conduit; 29. Third liquid pump; 30. Fourth conduit; 31. Fifth conduit; 32. Second hydraulic cylinder; 33. Second hydraulic rod; 34. Second pressure chamber; 35. Second stamping plate; 36. First hydraulic cylinder; 37. First hydraulic rod; 38. First pressure chamber; 39. First stamping plate; 40. Roller. Detailed implementation manners

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0024] Refer to Figures 1-4, an intermittent rectification and purification device for dimethyl sulfoxide according to an embodiment of the present utility model includes: a substrate 1, a roller 40 is fixedly connected to the lower end of the substrate 1 to move the device, the roller 40 is located at the four corners of the lower end of the substrate 1, a reaction kettle 11 is fixedly connected to the upper end of the substrate 1 to carry out the preparation reaction of dimethyl sulfoxide, a distillation column 26 is fixedly connected to the upper end of the substrate 1 to rectify and purify the product, a first liquid pump 7 is fixedly connected to the upper end of the substrate 1 to provide power for the transportation of the preparation reaction product, the input end of the first liquid pump 7 is fixedly connected to the reaction kettle 11 through a first conduit 9, and the output end of the first liquid pump 7 is fixedly connected to the distillation column 26 through a second conduit 6, a first heater 19 and a second heater 22 are fixedly connected to the upper end of the substrate 1 to provide heat for the reaction and distillation, the first heater 19 is fixedly connected to the reaction kettle 11 through a first heat conduction pipe 20, and the second heater 22 is fixedly connected to the distillation column 26 through a second heat conduction pipe 23, a methanol tank 16 is fixedly connected to the upper end of the substrate 1 to store and supply methanol, a first tank cover 14 is arranged at the upper end of the methanol tank 16 to seal the methanol tank 16, a sulfur dioxide tank 13 is fixedly connected to the upper end of the substrate 1 to store and supply sulfur dioxide, a second tank cover 12 is arranged at the upper end of the sulfur dioxide tank 13 to seal the sulfur dioxide tank 13, a second liquid pump 15 is fixedly connected to the upper end of the substrate 1 to provide power for the transportation of methanol, the input end of the second liquid pump 15 is fixedly connected to the methanol tank 16 through a third conduit 17, and the output end of the second liquid pump 15 is fixedly connected to the reaction kettle 11 through a fourth conduit 30, an air pump 8 is fixedly connected to the upper end of the substrate 1 to provide power for the transportation of sulfur dioxide, the input end of the air pump 8 is fixedly connected to the sulfur dioxide tank 13 through a fifth conduit 31, and the output end of the air pump 8 is fixedly connected to the reaction kettle 11 through a sixth conduit 10, a condenser 4 is fixedly connected to the upper end of the substrate 1 to condense and liquefy the dimethyl sulfoxide vapor, a collection tank 25 is fixedly connected to the upper end of the substrate 1 to collect dimethyl sulfoxide, a third tank cover 24 is arranged at the upper end of the collection tank 25 to seal the collection tank 25, a steam pump 27 is fixedly connected to the upper end of the substrate 1 to provide power for the transportation of the dimethyl sulfoxide vapor, the input end of the steam pump 27 is fixedly connected to the distillation column 26 through a seventh conduit 5, and the output end of the steam pump 27 is fixedly connected to the condenser 4 through an eighth conduit 3, a third liquid pump 29 is fixedly connected to the upper end of the substrate 1 to provide power for the transportation of the dimethyl sulfoxide that has completed rectification and purification, the input end of the third liquid pump 29 is fixedly connected to the condenser 4 through a ninth conduit 2, and the output end of the third liquid pump 29 is fixedly connected to the collection tank 25 through a tenth conduit 28;

[0025] The first hydraulic cylinder 36, the lower end of the first hydraulic cylinder 36 is fixedly connected to the upper end of the substrate 1, the upper end of the first hydraulic cylinder 36 is fixedly connected with a first pressurizing chamber 38 to form a pressurizing space, the first pressurizing chamber 38 is fixedly connected to the reaction kettle 11 through a first pressurizing pipe 18, the upper end of the first hydraulic cylinder 36 is fixedly connected with a first stamping plate 39 through a first hydraulic rod 37 to apply an upward pressure to increase the air pressure, and the first stamping plate 39 is located inside the first pressurizing chamber 38;

[0026] The second hydraulic cylinder 32, the lower end of the second hydraulic cylinder 32 is fixedly connected to the upper end of the substrate 1, the upper end of the second hydraulic cylinder 32 is fixedly connected with a second pressurizing chamber 34 to form a pressurizing space, the second pressurizing chamber 34 is fixedly connected to the distillation column 26 through a second pressurizing pipe 21, the upper end of the second hydraulic cylinder 32 is fixedly connected with a second stamping plate 35 through a second hydraulic rod 33 to apply an upward pressure to increase the air pressure, and the second stamping plate 35 is located inside the second pressurizing chamber 34.

[0027] Working principle: The dimethyl sulfoxide is prepared, rectified and purified by an intermittent rectification and purification device for dimethyl sulfoxide. Methanol is transported into the reaction kettle 11 through a third conduit 17, a second liquid pump 15 and a fourth conduit 30, sulfur dioxide is transported into the reaction kettle 11 through a fifth conduit 31, an air pump 8 and a sixth conduit 10. The first heater 19 heats the reaction kettle 11 through a first heat conduction pipe 20. The first hydraulic cylinder 36 presses the first stamping plate 39 upward through the first hydraulic rod 37 to increase the air pressure in the first pressurizing chamber 38. The first pressurizing chamber 38 increases the air pressure in the reaction kettle 11 through the first pressurizing pipe 18 to shorten the reaction process. Methanol and sulfur dioxide will react in the reaction kettle 11 to generate dimethyl sulfoxide. The dimethyl sulfoxide is transported into the distillation column 26 through a first conduit 9, a first liquid pump 7 and a second conduit 6 for rectification and purification. The dimethyl sulfoxide will form dimethyl sulfoxide vapor in the distillation column 26. The second heater 22 heats the distillation column 26 through a second heat conduction pipe 23. The second hydraulic cylinder 32 presses the second stamping plate 35 upward through the second hydraulic rod 33 to increase the air pressure in the second pressurizing chamber 34. The second pressurizing chamber 34 increases the air pressure in the distillation column 26 through the second pressurizing pipe 21 to shorten the rectification and purification process. The dimethyl sulfoxide vapor is transported into the condenser 4 through a seventh conduit 5, a steam pump 27 and an eighth conduit 3 for condensation and liquefaction. The dimethyl sulfoxide is transported into the collection tank 25 through a sixth conduit 2, a third liquid pump 29 and a tenth conduit 28.

[0028] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those of ordinary skill in the art to which the present invention pertains.

Claims

1. An intermittent distillation purification device for dimethyl sulfoxide, characterized in that: include: A substrate (1), wherein the upper end of the substrate (1) is fixedly connected to a reaction kettle (11), the upper end of the substrate (1) is fixedly connected to a distillation tower (26), the upper end of the substrate (1) is fixedly connected to a first liquid pump (7), the input end of the first liquid pump (7) is fixedly connected to the reaction kettle (11) via a first conduit (9), the output end of the first liquid pump (7) is fixedly connected to the distillation tower (26) via a second conduit (6), the upper end of the substrate (1) is fixedly connected to a first heater (19) and a second heater (22), the first heater (19) is fixedly connected to the reaction kettle (11) via a first heat conducting pipe (20), and the second heater (22) is fixedly connected to the distillation tower (26) via a second heat conducting pipe (23); A first hydraulic cylinder (36), wherein the lower end of the first hydraulic cylinder (36) is fixedly connected to the upper end of the base plate (1), the upper end of the first hydraulic cylinder (36) is fixedly connected to a first pressurizing chamber (38), the first pressurizing chamber (38) is fixedly connected to the reaction kettle (11) via a first pressurizing pipe (18), the upper end of the first hydraulic cylinder (36) is fixedly connected to a first stamping plate (39) via a first hydraulic rod (37), and the first stamping plate (39) is located inside the first pressurizing chamber (38); A second hydraulic cylinder (32), wherein the lower end of the second hydraulic cylinder (32) is fixedly connected to the upper end of the base plate (1), the upper end of the second hydraulic cylinder (32) is fixedly connected to a second pressurizing chamber (34), the second pressurizing chamber (34) is fixedly connected to the distillation tower (26) via a second pressurizing pipe (21), the upper end of the second hydraulic cylinder (32) is fixedly connected to a second stamping plate (35) via a second hydraulic rod (33), and the second stamping plate (35) is located inside the second pressurizing chamber (34).

2. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: The lower end of the base plate (1) is fixedly connected with a roller (40), and the roller (40) is located at the four corners of the lower end of the base plate (1).

3. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly connected to a methanol tank (16), and the upper end of the methanol tank (16) is provided with a first tank cover (14); the upper end of the base plate (1) is fixedly connected to a sulfur dioxide tank (13), and the upper end of the sulfur dioxide tank (13) is provided with a second tank cover (12).

4. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: A second liquid pump (15) is fixedly connected to the upper end of the substrate (1); an input end of the second liquid pump (15) is fixedly connected to a methanol tank (16) via a third conduit (17); and an output end of the second liquid pump (15) is fixedly connected to a reaction kettle (11) via a fourth conduit (30).

5. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: An air pump (8) is fixedly connected to the upper end of the substrate (1); an input end of the air pump (8) is fixedly connected to a sulfur dioxide tank (13) via a fifth conduit (31); and an output end of the air pump (8) is fixedly connected to a reaction kettle (11) via a sixth conduit (10).

6. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly connected to a condenser (4), the upper end of the base plate (1) is fixedly connected to a collection tank (25), and the upper end of the collection tank (25) is provided with a third tank cover (24).

7. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: A steam pump (27) is fixedly connected to the upper end of the base plate (1); an input end of the steam pump (27) is fixedly connected to the distillation tower (26) via a seventh conduit (5); and an output end of the steam pump (27) is fixedly connected to the condenser (4) via an eighth conduit (3).

8. The intermittent distillation purification device for dimethyl sulfoxide according to claim 1, characterized in that: A third liquid pump (29) is fixedly connected to the upper end of the base plate (1); an input end of the third liquid pump (29) is fixedly connected to the condenser (4) via a ninth conduit (2); and an output end of the third liquid pump (29) is fixedly connected to the collection tank (25) via a tenth conduit (28).

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