A dimethyl sulfoxide purification device
By designing a scraping device and a wastewater treatment device, the problem of difficult-to-clean residues on the tower wall in the dimethyl sulfoxide purification unit was solved, improving purification efficiency and product quality, reducing equipment wear, and protecting the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU YANUO NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-24
AI Technical Summary
In traditional dimethyl sulfoxide purification equipment, the finished product adheres to the tower wall and is difficult to clean, which affects purification efficiency and increases production costs.
A dimethyl sulfoxide purification device was designed, which includes an internal scraping device and a sulfoxide distillation wastewater treatment device. The internal scraping device achieves comprehensive and uniform removal of residues from the tower wall through scrapers and limiting structures, while the sulfoxide distillation wastewater treatment device achieves efficient treatment of wastewater through water pumps and filter plates.
It effectively prevents the adhesion of residues to the tower wall, improves purification efficiency and product quality, reduces equipment wear, extends equipment life, and reduces environmental pollution through wastewater treatment.
Smart Images
Figure CN224548114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dimethyl sulfoxide purification technology, specifically, to a dimethyl sulfoxide purification device. Background Technology
[0002] Purification is a crucial step in the production of dimethyl sulfoxide. Traditional purification equipment suffers from the problem of finished product adhering to the tower walls, which is difficult to clean. This not only affects purification efficiency but also increases production costs.
[0003] According to a publicly disclosed batch distillation purification apparatus for dimethyl sulfoxide (publication number: CN223009843U), the apparatus includes: a base plate; a reaction vessel fixedly connected to the upper end of the base plate; a distillation column fixedly connected to the upper end of the base plate; a first liquid pump fixedly connected to the upper end of the base plate; the input end of the first liquid pump fixedly connected to the reaction vessel via a first conduit; the output end of the first liquid pump fixedly connected to the distillation column via a second conduit; a first heater and a second heater fixedly connected to the upper end of the base plate; the first heater fixedly connected to the reaction vessel via a first heat pipe; and the second heater fixedly connected to the distillation column via a second heat pipe. A pressurization mechanism composed of a hydraulic cylinder, a pressurization chamber, a hydraulic rod, a pressurization plate, a pressurization pipe, the reaction vessel, and the distillation column can be used to pressurize and shorten the preparation and distillation process, improving efficiency. A material conveying and receiving mechanism 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 simplifies the process and saves workload.
[0004] The above-mentioned applications, through the design of pressurization and material receiving mechanisms, improved the efficiency of preparation and distillation and simplified the process. However, they did not provide an effective solution to the problem of finished product adhering to the tower wall during the purification of dimethyl sulfoxide, which led to complicated cleaning. Therefore, we propose a dimethyl sulfoxide purification device. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a dimethyl sulfoxide purification device, which solves the technical problem that the finished product is difficult to clean from the tower wall in the prior art.
[0006] According to one aspect, at least one embodiment of the present invention provides a dimethyl sulfoxide purification apparatus, comprising: a sulfoxide dehydration tower, a sulfoxide distillation tower disposed on the side of the sulfoxide dehydration tower, a dimethyl sulfoxide product tower disposed on the side of the sulfoxide distillation tower, a sulfoxide distillation vacuum tail gas treatment pipe disposed on the top of the dimethyl sulfoxide product tower, and an internal scraping device disposed on the bottom of the dimethyl sulfoxide product tower.
[0007] The internal scraping device includes a main machine room, which is fixedly connected to the bottom of the dimethyl sulfoxide product tower. A connecting plate is fixedly connected inside the main machine room, and a motor is fixedly connected to the side of the connecting plate. A main support column is fixedly connected to the output end of the motor. A limit sleeve is fixedly connected to the circumferential surface of the main support column. A pressure spring is fixedly connected to the bottom of the limit sleeve. A sliding plate is fixedly connected to the end of the pressure spring away from the limit sleeve. A connecting column is fixedly connected to the side of the sliding plate. A scraper is fixedly connected to the end of the connecting column away from the sliding plate. A limit column is fixedly connected to the bottom of the limit sleeve. A rotating fixed plate is fixedly connected to the inner wall of the dimethyl sulfoxide product tower.
[0008] For example, in at least one embodiment of the present invention, a dimethyl sulfoxide purification device further includes: a baffle fixedly connected to one end of the limiting column away from the limiting sleeve; a heat dissipation groove provided on the side of the main unit room; a sealing groove provided inside the main unit room; and a sealing ring provided on the inner wall of the sealing groove. The function of the sealing ring is to dissipate the heat generated by the motor, improve the overall sealing performance of the device, and prevent leakage during the process, which would affect the effect.
[0009] The circumferential surface of the limiting post penetrates and is slidably connected to the side surface of the sliding plate. The side surface of the sliding plate is located on the displacement trajectory of the side surface of the baffle. Its function is to ensure that the scraper moves smoothly on the inner wall of the dimethyl sulfoxide product tower, avoid direct contact between the scraper and the tower wall, reduce wear, and extend the service life of the equipment.
[0010] The side of the scraper is slidably connected to the inner wall of the dimethyl sulfoxide product tower. The scraper, the limiting sleeve and the sliding plate are provided in several quantities and are symmetrically distributed along the vertical central axis of the main support column. Their function is to improve the coverage of the scraper on the inner wall of the dimethyl sulfoxide product tower, ensure that the scraper can completely and evenly scrape off the residue on the tower wall and prevent it from adhering to the tower wall.
[0011] The circumferential surface of the main support column penetrates and is rotatably connected to the side of the rotating fixed plate, and the output shaft of the motor penetrates and is rotatably connected to the bottom of the dimethyl sulfoxide product tower. Its function is to drive the main support column to rotate the scraper, achieve efficient scraping, and ensure a smooth process.
[0012] The circumferential surface of the sealing ring is rotatably connected to the output shaft of the motor. Several heat dissipation slots are provided and symmetrically distributed along the vertical central axis of the main equipment room. Their function is to further improve the sealing performance and heat dissipation effect of the device, ensure that the motor maintains stability and reliability during long-term operation, prevent equipment failure due to overheating or leakage, and improve the overall product quality.
[0013] According to another aspect, at least one embodiment of the present invention also provides a dimethyl sulfoxide purification device, comprising: a sulfoxide distillation wastewater treatment device, wherein the sulfoxide dehydration tower is provided with the sulfoxide distillation wastewater treatment device on its side, the sulfoxide distillation wastewater treatment device includes an output connecting pipe, the output connecting pipe passing through and fixedly connected to the side of the sulfoxide dehydration tower, a fixing plate fixedly connected to the side of the sulfoxide dehydration tower, a drive motor fixedly connected to the top of the fixing plate, a water pump fixedly connected to the output shaft of the drive motor, a wastewater chamber fixedly connected to the end of the output connecting pipe away from the sulfoxide dehydration tower, and an outlet pipe passing through and fixedly connected to the side of the wastewater chamber, the function of which is to transport the wastewater generated in the sulfoxide dehydration tower through the output connecting pipe to the wastewater chamber for centralized treatment by means of a water pump, wherein the wastewater in the wastewater chamber is filtered by a filter plate to remove impurities and particulate matter, performing simple filtration.
[0014] For example, in at least one embodiment of the present invention, a dimethyl sulfoxide purification device is provided, which further includes: a filter plate fixedly connected to the inner wall of the wastewater chamber, and a wastewater regulating valve fixedly connected through the circumference of the outlet pipe. The function of the wastewater regulating valve is to control the flow rate of the treated wastewater, so as to flexibly adjust the discharge rate of the wastewater and meet different treatment needs.
[0015] The filter plates are arranged in a linear array along the inner wall of the wastewater chamber. The side cross-section of the output connecting pipe is L-shaped. Its function is to improve the residence time and filtration efficiency of wastewater in the wastewater chamber, ensure that impurities and particulate matter in the wastewater can be fully filtered out, and improve the quality of wastewater treatment.
[0016] The pump's interior is connected to the inner circumference of the output connection pipe and is fixedly connected. The filter plate is located above the outlet pipe. Its function is to ensure that the wastewater can be fully filtered when it flows through the filter plate, and to prevent unfiltered wastewater from being discharged directly from the outlet pipe, which would affect the wastewater treatment effect.
[0017] The beneficial effects of the embodiments of this utility model are as follows:
[0018] 1. This utility model achieves comprehensive and uniform scraping of residues on the inner wall of the dimethyl sulfoxide (DMSO) product tower through the coordinated operation of components such as the main machine room, connecting plate, and motor in the internal scraping device. This effectively prevents residue adhesion, improves purification efficiency, and enhances product quality. Simultaneously, the design of the limiting column, sliding plate, and scraper ensures the stability of the scraper during movement and protects the tower wall, reducing wear and extending the equipment's service life.
[0019] 2. This utility model achieves efficient treatment of wastewater generated in the sulfoxide distillation wastewater treatment device through the coordinated operation of components such as the output connection pipe, fixed plate, and drive motor, thus avoiding environmental pollution caused by direct discharge of wastewater. The wastewater undergoes layer-by-layer filtration through filter plates within the wastewater chamber, effectively removing impurities and particulate matter and improving the treatment quality. Simultaneously, the wastewater regulating valve allows for flexible adjustment of the wastewater discharge rate according to actual needs, meeting diverse treatment requirements. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a three-dimensional side view structural schematic diagram of the present invention;
[0023] Figure 3 This is a three-dimensional cross-sectional structural diagram of the internal scraping device of this utility model;
[0024] Figure 4 This is a three-dimensional cross-sectional structural schematic diagram of the sulfoxide distillation wastewater treatment device of this utility model;
[0025] Figure 5 This is a three-dimensional cross-sectional structural diagram of the main computer room of this utility model.
[0026] In the diagram: 1. Sulfoxide dehydration tower; 2. Sulfoxide distillation tower; 3. Dimethyl sulfoxide product tower; 4. Sulfoxide distillation vacuum tail gas treatment pipe; 5. Internal scraper; 501. Main equipment room; 502. Connecting plate; 503. Motor; 504. Main support column; 505. Limiting sleeve; 506. Pressure spring; 507. Sliding plate; 508. Connecting column; 509. Scraper; 510. Limiting column; 511. Rotating fixed plate; 6. Baffle; 7. Heat dissipation tank; 8. Sealing tank; 9. Sealing ring; 10. Sulfoxide distillation wastewater treatment device; 101. Output connecting pipe; 102. Fixed plate; 103. Drive motor; 104. Water pump; 105. Wastewater chamber; 106. Outlet pipe; 11. Filter plate; 12. Wastewater regulating valve. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-5As shown, it illustrates a dimethyl sulfoxide purification device according to an embodiment of the present invention, including a sulfoxide dehydration tower 1, a sulfoxide distillation tower 2 disposed on the side of the sulfoxide dehydration tower 1, a dimethyl sulfoxide product tower 3 disposed on the side of the sulfoxide distillation tower 2, a sulfoxide distillation vacuum tail gas treatment pipe 4 disposed on the top of the dimethyl sulfoxide product tower 3, and an internal scraping device 5 disposed on the bottom of the dimethyl sulfoxide product tower 3.
[0034] The internal scraping device 5 includes a main machine room 501, which is fixedly connected to the bottom of the dimethyl sulfoxide product tower 3. A connecting plate 502 is fixedly connected inside the main machine room 501. A motor 503 is fixedly connected to the side of the connecting plate 502. A main support column 504 is fixedly connected to the output end of the motor 503. A limiting sleeve 505 is fixedly connected to the circumferential surface of the main support column 504. A pressure spring 506 is fixedly connected to the bottom of the limiting sleeve 505. A sliding plate 507 is fixedly connected to the end of the pressure spring 506 away from the limiting sleeve 505. A connecting column 508 is fixedly connected to the side of the sliding plate 507. A scraper 509 is fixedly connected to the end of the connecting column 508 away from the sliding plate 507. A limiting column 510 is fixedly connected to the bottom of the limiting sleeve 505. A rotating fixing plate 511 is fixedly connected to the inner wall of the dimethyl sulfoxide product tower 3.
[0035] In some examples, a baffle 6 is fixedly connected to the end of the limiting post 510 away from the limiting sleeve 505. A heat dissipation groove 7 is provided on the side of the main unit 501. A sealing groove 8 is provided inside the main unit 501. A sealing ring 9 is provided on the inner wall of the sealing groove 8. Its function is to dissipate the heat generated by the motor 503, improve the overall sealing performance of the device, and prevent leakage during the process, which would affect the effect.
[0036] The circumferential surface of the limiting column 510 penetrates and slides through the side of the sliding plate 507. The side of the sliding plate 507 is located on the displacement trajectory of the side of the baffle 6. Its function is to ensure that the scraper 509 moves smoothly on the inner wall of the dimethyl sulfoxide product tower 3, avoid direct contact between the scraper 509 and the tower wall, reduce wear, and extend the service life of the equipment.
[0037] The side of the scraper 509 is slidably connected to the inner wall of the dimethyl sulfoxide product tower 3. Several scrapers 509, limiting sleeves 505 and sliding plates 507 are provided and symmetrically distributed along the vertical central axis of the main support column 504. Their function is to improve the coverage of the scraper 509 on the inner wall of the dimethyl sulfoxide product tower 3, and ensure that the scraper 509 can completely and evenly scrape off the residue on the tower wall and prevent it from adhering to the tower wall.
[0038] The circumferential surface of the main support column 504 is rotatably connected to the side of the rotating fixed plate 511, and the output shaft of the motor 503 is rotatably connected to the bottom of the dimethyl sulfoxide product tower 3. Its function is to drive the main support column 504 to rotate the scraper 509, so as to achieve efficient scraping and ensure smooth process.
[0039] The circumferential surface of the sealing ring 9 is rotatably connected to the output shaft of the motor 503. Several heat dissipation slots 7 are provided and symmetrically distributed along the vertical central axis of the main unit room 501. Their function is to further improve the sealing performance and heat dissipation effect of the device, ensure that the motor 503 maintains stability and reliability during long-term operation, prevent equipment failure caused by overheating or leakage, and improve the overall product quality.
[0040] For example, such as Figures 1-5 As shown, neutral sulfoxide from the dimethyl sulfide oxidation unit is dehydrated and distilled to obtain finished dimethyl sulfoxide, which is then sent to the tank area storage tank. Vacuum tail gas is sent to the sulfuric acid unit, sulfoxide distillation wastewater is sent to the sewage treatment plant, and the finished sulfoxide product is sent to the dimethyl sulfoxide product tower 3. After entering, the motor 503 starts, driving the main support column 504 to rotate via the output shaft. The rotation of the main support column 504 further drives the limiting sleeve 505, pressure spring 506, sliding plate 507, connecting column 508, and scraper 509 to rotate around the axis of the dimethyl sulfoxide product tower 3. During this process, because the side of the sliding plate 507 is slidably connected to the circumferential surface of the limiting column 510, and the side of the sliding plate 507 is located on the displacement trajectory of the side of the baffle 6, the sliding plate 507 can move smoothly under the guidance of the limiting column 510, thereby driving the scraper 509 to slide on the inner wall of the dimethyl sulfoxide product tower 3, achieving the purpose of scraping off residues. Meanwhile, because there are several scraper blades 509, limiting sleeves 505, and sliding plates 507, and they are symmetrically distributed along the vertical central axis of the main support column 504, the scraper blades 509 can comprehensively and evenly scrape away the residue on the inner wall of the dimethyl sulfoxide product tower 3, preventing the residue from adhering to the tower wall. The sealing ring 9 improves the sealing performance of the device, preventing leakage during the process and further ensuring the storage effect. The heat dissipation groove 7 improves the heat dissipation effect of the device, ensuring that the motor 503 maintains stability and reliability during long-term operation and preventing equipment failure due to overheating.
[0041] like Figures 1-5As shown, this invention illustrates a dimethyl sulfoxide purification device according to another embodiment of the present invention, including a sulfoxide distillation wastewater treatment device 10. The sulfoxide distillation wastewater treatment device 10 includes an output connection pipe 101, which is connected through and fixedly connected to the side of a sulfoxide dehydration tower 1. A fixing plate 102 is fixedly connected to the side of the sulfoxide dehydration tower 1, and a drive motor 103 is fixedly connected to the top of the fixing plate 102. A water pump 104 is fixedly connected to the output shaft of the drive motor 103. A wastewater chamber 105 is fixedly connected to the end of the output connection pipe 101 away from the sulfoxide dehydration tower 1. An outlet pipe 106 is connected through and fixedly connected to the side of the wastewater chamber 105. Its function is to use the water pump 104 to transport the wastewater generated in the sulfoxide dehydration tower 1 to the wastewater chamber 105 for centralized treatment via the output connection pipe 101. The wastewater in the wastewater chamber 105 is filtered by a filter plate 11 to remove impurities and particulate matter, thus performing simple filtration.
[0042] In some examples, a filter plate 11 is fixedly connected to the inner wall of the wastewater chamber 105, and a wastewater regulating valve 12 is fixedly connected through the circumference of the outlet pipe 106. Its function is to control the flow rate of the treated wastewater through the wastewater regulating valve 12, so as to flexibly adjust the discharge rate of wastewater and meet different treatment needs.
[0043] The filter plates 11 are arranged in a linear array along the inner wall of the wastewater chamber 105. The side cross-section of the output connection pipe 101 is L-shaped. Its function is to improve the residence time and filtration efficiency of wastewater in the wastewater chamber 105, ensure that impurities and particulate matter in the wastewater can be fully filtered out, and improve the quality of wastewater treatment.
[0044] The interior of the water pump 104 is connected to the inner circumference of the output connection pipe 101 and fixedly connected. The filter plate 11 is located above the outlet pipe 106. Its function is to ensure that the wastewater can be fully filtered when it flows through the filter plate 11, so as to avoid unfiltered wastewater being discharged directly from the outlet pipe 106 and affecting the wastewater treatment effect.
[0045] For example, such as 1~ Figure 5 As shown, during the production of dimethyl sulfoxide, the wastewater generated by the sulfoxide dehydration tower 1 contains certain harmful substances and impurities. Direct discharge without treatment would pollute the environment. Therefore, a sulfoxide distillation wastewater treatment device 10 is installed. A water pump 104 pumps the wastewater through an output connection pipe 101 to a wastewater treatment room 105 for centralized treatment. In the wastewater treatment room 105, the wastewater is filtered by a filter plate 11 to remove impurities and particulate matter. After temporary storage, it is discharged through an outlet pipe 106 to a qualified hazardous waste company for treatment. This effectively protects the environment, avoids wastewater pollution, and provides simple filtration.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A dimethyl sulfoxide purification apparatus, characterized in that, include: A sulfoxide dehydration tower (1) is provided on the side of the sulfoxide dehydration tower (1), a sulfoxide distillation tower (2) is provided on the side of the sulfoxide distillation tower (2), a dimethyl sulfoxide product tower (3) is provided on the side of the dimethyl sulfoxide product tower (3), a sulfoxide distillation vacuum tail gas treatment pipe (4) is provided at the top of the dimethyl sulfoxide product tower (3), and an internal scraping device (5) is provided at the bottom of the dimethyl sulfoxide product tower (3). The internal scraping device (5) includes a main machine room (501), which is fixedly connected to the bottom of the dimethyl sulfoxide product tower (3). A connecting plate (502) is fixedly connected inside the main machine room (501), and a motor (503) is fixedly connected to the side of the connecting plate (502). A main support column (504) is fixedly connected to the output end of the motor (503). A limiting sleeve (505) is fixedly connected to the circumferential surface of the main support column (504), and the bottom of the limiting sleeve (505) is fixedly connected to the limiting sleeve (505). A pressure spring (506) is fixedly connected. A sliding plate (507) is fixedly connected to one end of the pressure spring (506) away from the limiting sleeve (505). A connecting column (508) is fixedly connected to the side of the sliding plate (507). A scraper (509) is fixedly connected to one end of the connecting column (508) away from the sliding plate (507). A limiting column (510) is fixedly connected to the bottom of the limiting sleeve (505). A rotating fixing plate (511) is fixedly connected to the inner wall of the dimethyl sulfoxide product tower (3).
2. The dimethyl sulfoxide purification apparatus according to claim 1, characterized in that, A baffle (6) is fixedly connected to the end of the limiting post (510) away from the limiting sleeve (505). A heat dissipation groove (7) is provided on the side of the main computer room (501). A sealing groove (8) is provided inside the main computer room (501). A sealing ring (9) is provided on the inner wall of the sealing groove (8).
3. The dimethyl sulfoxide purification apparatus according to claim 2, characterized in that, The circumferential surface of the limiting post (510) penetrates and slides through the side of the sliding plate (507), and the side of the sliding plate (507) is located on the displacement trajectory of the side of the baffle (6).
4. The dimethyl sulfoxide purification apparatus according to claim 3, characterized in that, The side of the scraper (509) is slidably connected to the inner wall of the dimethyl sulfoxide product tower (3). The scraper (509), the limiting sleeve (505) and the sliding plate (507) are provided in several quantities and are symmetrically distributed along the vertical central axis of the main support column (504).
5. The dimethyl sulfoxide purification apparatus according to claim 4, characterized in that, The circumferential surface of the main support column (504) is connected to the side of the rotating fixed plate (511) through and rotatably connected, and the output shaft of the motor (503) is connected to the bottom of the dimethyl sulfoxide product tower (3) through and rotatably connected.
6. The dimethyl sulfoxide purification apparatus according to claim 5, characterized in that, The circumferential surface of the sealing ring (9) is rotatably connected to the output shaft of the motor (503), and the number of heat dissipation slots (7) is set in several, and they are symmetrically distributed along the vertical central axis of the main engine room (501).
7. The dimethyl sulfoxide purification apparatus according to claim 6, characterized in that, A sulfoxide distillation wastewater treatment device (10) is provided on the side of the sulfoxide dehydration tower (1). The sulfoxide distillation wastewater treatment device (10) includes an output connection pipe (101). The output connection pipe (101) passes through and is fixedly connected to the side of the sulfoxide dehydration tower (1). A fixing plate (102) is fixedly connected to the side of the sulfoxide dehydration tower (1). A drive motor (103) is fixedly connected to the top of the fixing plate (102). A water pump (104) is fixedly connected to the output shaft of the drive motor (103). A wastewater chamber (105) is fixedly connected to the end of the output connection pipe (101) away from the sulfoxide dehydration tower (1). A water outlet pipe (106) passes through and is fixedly connected to the side of the wastewater chamber (105).
8. The dimethyl sulfoxide purification apparatus according to claim 7, characterized in that, The inner wall of the wastewater chamber (105) is fixedly connected to a filter plate (11), and the circumferential surface of the outlet pipe (106) is penetrated and fixedly connected to a wastewater regulating valve (12).
9. The dimethyl sulfoxide purification apparatus according to claim 8, characterized in that, The number of filter plates (11) is set to several and is arranged linearly along the inner wall of the wastewater chamber (105), and the side cross section of the output connecting pipe (101) is set to L-shape.
10. The dimethyl sulfoxide purification apparatus according to claim 9, characterized in that, The interior of the water pump (104) is connected to the inner circumference of the output connecting pipe (101) and fixedly connected. The filter plate (11) is located above the water outlet pipe (106).