A wastewater treatment device for the production of pazopanib intermediates

Abstract

The present invention proposes a wastewater treatment device for the production of pazopanib intermediates, comprising: a water inlet tank, a water outlet tank, an outer electrode, an inner electrode, an ultraviolet lamp and a driving motor, wherein the outer electrode is cylindrical, the middle part of the water inlet tank is connected to the middle part of the water outlet tank through the outer electrode, the driving end of the driving motor is connected to the outer electrode in a transmission manner and can drive the outer electrode to rotate, the outer electrode can rotate relative to the water inlet tank and the water outlet tank around its axis, the inner electrode is cylindrical and a plurality of through holes are provided on the surface of the inner electrode, the inner electrode is coaxially spaced and arranged inside the outer electrode, and the ultraviolet lamp is coaxially spaced and arranged inside the inner electrode. In the wastewater treatment device of the present invention, the cylindrical outer electrode can be rotated under the drive of the driving motor, and the wastewater passing through the inner side thereof can be driven to rotate during the rotation process, thereby accelerating the material exchange between free radicals and wastewater, and achieving a better wastewater treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and in particular to a wastewater treatment device for the production of a pazopanib intermediate. Background Art

[0002] During the preparation and production of pazopanib intermediates, a certain amount of organic wastewater is generated. These organic wastewaters contain organic pollutants. In the existing technology, biochemical treatment is required to decompose the organic molecules in the wastewater into substances that can be removed through secondary treatment and deep treatment.

[0003] However, during the production of pazopanib intermediates, some organic matter cannot be directly biochemically treated, so it needs to be pretreated. Currently, the more reasonable treatment methods include advanced oxidation technology, which uses hydroxyl radicals in combination with other processes for composite treatment.

[0004] Chinese patent CN112340905A discloses a method and device for multi-wavelength ultraviolet-electrochemical segmented wastewater treatment. However, the extension direction of the electrode plates is parallel to the flow direction of the sewage in the electrolytic cell. Therefore, the electrochemical reaction generated between the electrode plates is difficult to spread to the sewage outside the electrode plates. The flow of sewage between the electrode plates tends to be laminar, so it is basically difficult for sewage outside the electrode plates to directly enter the inner side of the electrode plates, which may lead to a decrease in the treatment effect of the sewage outside the electrode plates. In view of this, how to overcome the above technical problems and provide a wastewater treatment device with a more rational structural design has become one of the technical problems that need to be solved urgently. Summary of the Invention

[0005] In view of this, the present invention proposes a wastewater treatment device for the production of pazopanib intermediates, aiming to improve the uniformity of the wastewater treatment effect of the wastewater treatment device on wastewater at different locations.

[0006] The technical solution of the present invention is achieved as follows: The present invention provides a wastewater treatment device for the production of pazopanib intermediates, which includes: a water inlet trough, a water outlet trough, an outer electrode, an inner electrode, an ultraviolet lamp and a drive motor. The outer electrode is cylindrical, and the middle part of the water inlet trough is connected to the middle part of the water outlet trough through the outer electrode. The driving end of the drive motor is transmission-connected to the outer electrode and can drive the outer electrode to rotate. The outer electrode can rotate around its axis relative to the water inlet trough and the water outlet trough. The inner electrode is cylindrical and has a plurality of through holes on its surface. The inner electrode is coaxially spaced and arranged on the inner side of the outer electrode, and the ultraviolet lamp is coaxially spaced and arranged on the inner side of the inner electrode.

[0007] In some embodiments, the inner surface of the outer electrode is provided with an array of protrusions.

[0008] In some embodiments, the protrusions are arranged in a plurality of circles along the axis of the outer electrode, and each circle of protrusions is arranged in an array along the inner circumference of the outer electrode.

[0009] In some embodiments, a transducer is further included, and the surface of the water inlet trough and / or the water outlet trough is fixedly mounted with the transducer, and at least one end of the ultraviolet lamp is transmission-connected to the vibrating end of the transducer.

[0010] In some embodiments, the angle between the axis of the outer electrode and the horizontal plane is 0.1-30°.

[0011] In some embodiments, a sealed bearing is further included, and both ends of the outer electrode are rotatably connected to the outer wall of the water inlet trough and the outer wall of the water outlet trough respectively through the sealed bearing.

[0012] In some embodiments, a transmission belt is further included, and the outer wall of the outer electrode is transmission-connected to the driving end of the driving motor via the transmission belt.

[0013] In some embodiments, the water outlet of the water outlet trough is higher than the opening at one end of the outer electrode close to the water outlet trough.

[0014] In some embodiments, the through hole is in the shape of an elongated strip, the length direction of the through hole is parallel to the axis of the inner electrode, and the plurality of through holes are arranged in an array along the circumference of the inner electrode.

[0015] In some embodiments, a fixing frame is further included, and both ends of the inner electrode are fixedly connected to the water inlet trough and the water outlet trough respectively through the fixing frame.

[0016] The present invention has the following beneficial effects compared to the prior art:

[0017] (1) The wastewater treatment device of the present invention uses external and internal electrodes to generate strong oxidizing free radicals through electrolysis. Combined with the ultraviolet light generated by the ultraviolet lamp, the free radicals oxidize and decompose large molecular organic matter or toxic and harmful organic matter in the wastewater that is difficult to biochemically treat, thereby forming smaller or relatively safer and more harmless molecules, which are convenient for subsequent biochemical treatment;

[0018] (2) Compared with conventional flat electrodes, the channel structure formed by the cylindrical outer electrode and inner electrode allows the wastewater entering therein to fully contact with the generated strong oxidizing free radicals and ultraviolet light, which can solve the problem in the prior art that the wastewater may not be able to form an effective contact point with the strong oxidizing free radicals;

[0019] (3) At the same time, in the wastewater treatment device of the present invention, the cylindrical outer electrode can be rotated by the drive motor, and the wastewater passing through the inner side thereof can be driven to rotate during the rotation, thereby accelerating the material exchange between the free radicals and the wastewater. At the same time, the rotation and stirring process can help to form turbulence, thereby preventing impurities generated in the wastewater from being deposited on the inner surface of the outer electrode and affecting the smooth occurrence of the electrolysis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is an axonometric diagram of a wastewater treatment device for the production of a pazopanib intermediate of the present invention;

[0022] Figure 2 Based Figure 1 Exploded diagram.

[0023] In the figure: 1-water inlet trough, 2-water outlet trough, 3-external electrode, 4-inner electrode, 5-ultraviolet lamp, 6-driving motor, 7-transducer, 8-sealed bearing, 9-transmission belt, 10-fixed frame, 31-protrusion, 41-through hole. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present invention belong. If the definitions set forth in this section are contrary to or otherwise inconsistent with definitions set forth in the patents, patent applications, published patent applications, and other publications incorporated herein by reference, the definitions listed in this section take precedence over the definitions incorporated herein by reference.

[0028] like Figure 1 As shown, combined Figure 2 The wastewater treatment device for the production of pazopanib intermediates of the present invention comprises: an inlet tank 1, an outlet tank 2, an outer electrode 3, an inner electrode 4, an ultraviolet lamp 5 and a drive motor 6. The outer electrode 3 is cylindrical. The middle part of the water inlet tank 1 is connected to the middle part of the water outlet tank 2 through the outer electrode 3. The driving end of the drive motor 6 is transmission-connected to the outer electrode 3 and can drive the outer electrode 3 to rotate. The outer electrode 3 can rotate around its axis relative to the water inlet tank 1 and the water outlet tank 2. The inner electrode 4 is cylindrical and has a plurality of through holes 41 on its surface. The inner electrode 4 is coaxially arranged at intervals on the inner side of the outer electrode 3, and the ultraviolet lamp 5 is coaxially arranged at intervals on the inner side of the inner electrode 4.

[0029] In the above embodiment, the wastewater to be treated first enters the water inlet tank 1, passes through the channel in the outer electrode 3, and then flows into the water outlet tank 2. The ultraviolet lamp 5 is a columnar lamp, and the inner electrode 4 and the outer electrode 3 are respectively connected to the positive and negative poles of the external power supply. Strong oxidizing free radicals are generated by electrolysis between the inner electrode 4 and the outer electrode 3. Under the rotation of the outer electrode 3, the wastewater containing a high concentration of free radicals is disturbed on the inner side of the outer electrode 3 and enters the inner side of the inner electrode 3 through the through hole 41, thereby achieving mixing of the wastewater and the strong oxidizing free radicals; and the ultraviolet light emitted by the ultraviolet lamp 5 can irradiate the wastewater on the inner side of the inner electrode 3 and the wastewater between the outer electrode 3 and the inner electrode 4 that can be irradiated through the through hole 41, thereby promoting the strong oxidation reaction.

[0030] In the above embodiment, when the wastewater to be treated is treated, an auxiliary treatment agent, such as chloride salt, may be added into the water inlet tank 1 .

[0031] When the above-mentioned wastewater treatment device is treating wastewater, the wastewater enters the water inlet tank 1, passes through the channel enclosed by the outer electrode 3, and is electrochemically and ultraviolet irradiated to the wastewater. After treatment, the wastewater enters the water outlet tank 2 to wait for discharge. During this treatment process, the wastewater in the channel enclosed by the outer electrode 3 can be better mixed and reacted with the strong oxidizing free radicals generated by the electrochemical reaction. Compared with the existing technology, the contact process between the wastewater and the strong oxidizing groups is more complete.

[0032] In some embodiments, a plurality of protrusions 31 are arranged in an array on the inner surface of the outer electrode 3 .

[0033] In the above embodiment, a plurality of protrusions 31 are arranged in an array on the inner surface of the outer electrode 3. The protrusions 31 can serve as a stirring structure during the rotation of the outer electrode 3 around its axis, thereby forming turbulent disturbances on the inner side of the outer electrode 3, accelerating the mixing effect between the wastewater and the generated strong oxidizing free radicals. Secondly, the protrusions 31 can increase the effective surface area of ​​the outer electrode 3, making it more efficient in generating strong oxidizing free radicals.

[0034] In some embodiments, the protrusions 31 are arranged in a plurality of circles along the axis of the outer electrode 3 , and each circle of protrusions 31 is arranged in a circumferential array along the inner side of the outer electrode 3 .

[0035] In the above embodiments, as some specific exemplary structures of the protrusions 31 , the protrusions 31 may be scale-shaped protrusions, plate-shaped protrusions, columnar protrusions, and the like.

[0036] To summarize the above embodiments, the protrusion 31 can disturb the wastewater as the outer electrode 3 rotates, causing the wastewater to flow turbulently along the inner circumference of the outer electrode 3, and at the same time causing part of the wastewater to flow turbulently along the radial direction of the outer electrode 3, thereby accelerating the mixing of strong oxidizing free radicals and wastewater, and allowing strong oxidizing free radicals and wastewater to enter the space irradiated by the ultraviolet lamp 5.

[0037] In some embodiments, a transducer 7 is further included. The surface of the water inlet trough 1 and / or the water outlet trough 2 is fixedly mounted with the transducer 7 . At least one end of the ultraviolet lamp 5 is transmission-connected to the vibration end of the transducer 7 .

[0038] In the above embodiment, the ultraviolet lamp 5 is located at the axial position of the outer electrode 3. Therefore, the flow of water at the location of the ultraviolet lamp 5 is relatively smooth, and the sediment in the wastewater is more likely to adhere to the surface of the ultraviolet lamp 5. In order to prevent the attachment from affecting the normal light emission of the ultraviolet lamp 5, the transducer 7 is used to vibrate the ultraviolet lamp 5, and can also serve as a supporting structure for the ultraviolet lamp 5. The transducer 7 converts electrical energy into vibration and transmits it to the surface of the ultraviolet lamp 5. In conjunction with the flow of wastewater, the sediment on the surface of the ultraviolet lamp 5 can be removed to a certain extent.

[0039] In some embodiments, it also includes a telescopic structure and a cleaning ring. The telescopic structure is fixed on the inner surface of the water inlet trough 1 or the water outlet trough 2, and the cleaning ring is fixed on the driving end of the telescopic structure. The cleaning ring is coaxially sleeved on the ultraviolet lamp 5. The telescopic structure can drive the cleaning ring to reciprocate along the length direction of the ultraviolet lamp 5 and clean the surface of the ultraviolet lamp 5.

[0040] In some embodiments, the angle between the axis of the outer electrode 3 and the horizontal plane is 0.1-30°.

[0041] In the above embodiment, the outer electrode 3 is tilted to allow the sediment deposited at the inner bottom of the outer electrode 3 to gather toward the inner side of the water inlet trough 1 or the water outlet trough 2, thereby preventing the sediment from settling and gathering in the outer electrode 3.

[0042] In some embodiments, a sealed bearing 8 is further included, and both ends of the outer electrode 3 are rotatably connected to the outer wall of the water inlet trough 1 and the outer wall of the water outlet trough 2 through the sealed bearing 8 respectively.

[0043] In the above embodiment, a first mounting hole is provided on the surface of one side of the water inlet tank 1 close to the water outlet tank 2, and a second mounting hole is provided on the surface of one side of the water outlet tank 2 close to the water inlet tank 1. Sealed bearings 8 are coaxially installed in the first mounting hole and the second mounting hole, and the two sealed bearings 8 are connected through the cylinder of the outer electrode 3.

[0044] In some embodiments, a transmission belt 9 is further included, and the outer wall of the outer electrode 3 is transmission-connected to the driving end of the driving motor 6 via the transmission belt 9 .

[0045] In the above embodiment, the outer electrode 3 and the driving end of the driving motor 6 are connected by a transmission belt 9. Specifically, a pulley is coaxially provided on the outer wall of the outer electrode 3 along the circumferential direction, and a driving pulley is coaxially provided on the output shaft of the driving motor 6. The driving pulley and the pulley are transmitted by a transmission belt 9.

[0046] In some embodiments, the water outlet of the water outlet trough 2 is higher than the opening of the outer electrode 3 close to the water outlet trough 2 .

[0047] In the above embodiment, when the water outlet of the water outlet trough 2 is higher than the water outlet of the outer electrode 3, it can ensure that the wastewater is completely immersed in the outer electrode 3, so that there is no air in the outer electrode 3. At this time, the rotation of the outer electrode 3 can effectively ensure the rotation of the water flow inside, so that the wastewater and the strong oxidizing free radicals generated by electrochemistry can be better mixed.

[0048] In some embodiments, the through hole 41 is in the shape of an elongated strip, the length direction of the through hole 41 is parallel to the axis of the inner electrode 4 , and a plurality of through holes 41 are arranged in an array along the circumference of the inner electrode 4 .

[0049] In the above embodiment, the through hole 41 is used to provide a flow channel for the sewage inside and outside the inner electrode 4 and the free radicals in the sewage.

[0050] In some embodiments, a certain angle is formed between the outer wall of the inner electrode 4 between two adjacent through holes and a tangent plane at the center line of the outer wall, and the angle is preferably 0.1-15°.

[0051] In the above embodiments, when the outer wall forms a certain angle, it can cooperate with the water flow pushed by the rotation of the outer electrode 3 to promote the flow of water along the radial direction of the outer electrode 3.

[0052] In some embodiments, a fixing frame 10 is further included, and both ends of the inner electrode 4 are fixedly connected to the water inlet trough 1 and the water outlet trough 2 through the fixing frame 10 .

[0053] In the above embodiments, the fixing frame 10 is used to fix the inner electrode 4 . When the fixing frame 10 fixes the inner electrode 4 , it should not block the passage between the inner electrode 4 and the outer electrode 3 .

[0054] It should be understood that the fixing frame 10 and the sealed bearing 8 are both made of insulating materials.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wastewater treatment device for the production of pazopanib intermediates, characterized in that: include: The invention relates to a water inlet trough (1), a water outlet trough (2), an outer electrode (3), an inner electrode (4), an ultraviolet lamp (5) and a driving motor (6). The outer electrode (3) is cylindrical. The middle part of the water inlet trough (1) is connected to the middle part of the water outlet trough (2) through the outer electrode (3). The driving end of the driving motor (6) is connected to the outer electrode (3) in a transmission manner and can drive the outer electrode (3) to rotate. The outer electrode (3) can rotate around its axis relative to the water inlet trough (1) and the water outlet trough (2). The inner electrode (4) is cylindrical and a plurality of through holes (41) are provided on the surface of the inner electrode (4). The inner electrode (4) is coaxially arranged at intervals on the inner side of the outer electrode (3). The ultraviolet lamp (5) is coaxially arranged at intervals on the inner side of the inner electrode (4). The invention also includes a transducer (7). The surface of the water inlet trough (1) and / or the water outlet trough (2) is fixedly mounted with the transducer. (7), at least one end of the ultraviolet lamp (5) is drivingly connected to the vibration end of the transducer (7), the angle between the axis of the outer electrode (3) and the horizontal plane is 0.1-30°, the inner surface of the outer electrode (3) is arrayed with a plurality of protrusions (31), the protrusions (31) are multiple circles of protrusions (31) arrayed along the axis of the outer electrode (3), each circle of protrusions (31) is arrayed along the inner circumferential direction of the outer electrode (3), the through hole (41) is in the shape of a long strip, the length direction of the through hole (41) is parallel to the axis of the inner electrode (4), the plurality of through holes (41) are arrayed along the circumferential direction of the inner electrode (4), and a certain angle is formed between the outer wall of the inner electrode (4) between two adjacent through holes and the slice surface at the center line of the outer wall, the angle being 0.1-15°.

2. The wastewater treatment device for the production of pazopanib intermediates according to claim 1, characterized in that: It also comprises a sealing bearing (8), and the two ends of the outer electrode (3) are rotatably connected to the outer wall of the water inlet trough (1) and the outer wall of the water outlet trough (2) respectively through the sealing bearing (8).

3. The wastewater treatment device for the production of pazopanib intermediates according to claim 1, characterized in that: It also comprises a transmission belt (9), and the outer wall of the outer electrode (3) is transmission-connected to the driving end of the driving motor (6) via the transmission belt (9).

4. The wastewater treatment device for the production of pazopanib intermediates according to claim 1, characterized in that: The water outlet of the water outlet trough (2) is higher than the opening at one end of the outer electrode (3) close to the water outlet trough (2).

5. The wastewater treatment device for the production of pazopanib intermediates according to claim 1, characterized in that: It also comprises a fixing frame (10), and the two ends of the inner electrode (4) are respectively fixedly connected to the water inlet trough (1) and the water outlet trough (2) through the fixing frame (10).

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