Wastewater treatment device for catalyst recovery

Abstract

The present invention provides a wastewater treatment device for catalyst recovery, which belongs to the field of water treatment technology. The wastewater treatment device for catalyst recovery includes a reaction tower and a transmission shaft. A partition assembly is provided in the reaction tower for dividing the space in the reaction tower into a reaction chamber located on an upper layer and a sedimentation chamber located on a lower layer. The partition assembly includes a mounting disk coaxially arranged with the transmission shaft, a plurality of rotating shafts uniformly distributed along the circumferential direction of the mounting disk, and a plurality of fan-shaped plates. The two ends of the rotating shaft are rotatably mounted on the outer wall of the mounting disk and the inner wall of the reaction tower respectively, and the axis thereof extends radially along the mounting disk. The plurality of fan-shaped plates are sequentially arranged between two adjacent rotating shafts and form a complete circular plate together with the mounting disk and the rotating shaft. The outer wall of the rotating shaft is fixedly connected to the side wall of one of the fan-shaped plates, thereby accelerating the flow rate per unit time when the wastewater passes through the partition, and at the same time avoiding part of the wastewater and solid impurities from remaining on the partition assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment, and in particular relates to a wastewater treatment device for recovering a catalyst. Background Art

[0002] During the catalyst regeneration and recovery process, various chemicals are used for cleaning and treatment to remove impurities from the catalyst surface and restore its activity. These chemicals need to be washed away after the reaction, resulting in wastewater containing catalyst residues, cleaning agent residues, and other impurities. Therefore, effective treatment of the wastewater generated during the recovery process is necessary.

[0003] An industrial wastewater treatment device is disclosed in the patent application document with publication number CN118458998A, which includes a treatment tower. A switch door is provided inside the treatment tower, and the switch door divides the space inside the treatment tower into a reaction chamber located on the upper layer and a sedimentation chamber located on the lower layer; a stirring mechanism is provided inside the treatment tower, and the stirring mechanism is located in the reaction chamber; the inner wall of the treatment tower is connected to a filter screen, and the filter screen is located in the sedimentation chamber.

[0004] Existing wastewater treatment systems typically incorporate a partition and filter screen within the reaction tower, dividing the interior into a reaction chamber and a sedimentation chamber. After the wastewater completes its reaction in the reaction chamber, it flows into the sedimentation chamber through openings in the partition. Simultaneously, as the wastewater passes through the openings in the partition, the filter screen beneath the partition intercepts and filters any larger solids.

[0005] Because the baffles are located inside the reaction tower, existing equipment typically incorporates slots in the baffles to control the flow of wastewater and ensure it flows smoothly into the sedimentation chamber after the reaction is complete. These slots are then covered with baffles that rotate along the axis of the reaction tower. However, due to the limited size of the slots, they typically only occupy a portion of the baffle area, which limits the flow of wastewater through the baffles and may reduce wastewater treatment efficiency. Furthermore, this design may cause some wastewater and solid impurities to remain on the baffles. Summary of the Invention

[0006] The purpose of the present invention is to provide a wastewater treatment device for catalyst recovery, aiming to solve the problem in the prior art that wastewater is inefficient when entering the sedimentation chamber from the reaction chamber in the reaction tower, and some wastewater and solid impurities will remain in the reaction chamber.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wastewater treatment device for catalyst recovery, comprising a reaction tower and a transmission shaft located inside and coaxial with the reaction tower, wherein a partition assembly is provided in the reaction tower for dividing the space inside the reaction tower into a reaction chamber located on the upper layer and a sedimentation chamber located on the lower layer.

[0008] The partition assembly includes a mounting disk coaxially arranged with the transmission shaft, a plurality of rotating shafts uniformly distributed along the circumferential direction of the mounting disk, and a plurality of sector plates. The two ends of the rotating shaft are rotatably mounted on the outer wall of the mounting disk and the inner wall of the reaction tower, and its axis extends radially along the mounting disk. The plurality of sector plates are sequentially arranged between two adjacent rotating shafts and together with the mounting disk and the rotating shaft form a complete circular plate. The outer wall of the rotating shaft is fixedly connected to the side wall of one of the sector plates. The bottom of the mounting disk is rotatably mounted with a mounting sleeve coaxial therewith. The outer wall of the mounting sleeve is fixedly mounted with a plurality of support plates uniformly distributed along its circumferential direction. The plurality of support plates are respectively located at the bottom of the plurality of sector plates. A transmission mechanism for driving its rotation is installed inside the mounting sleeve.

[0009] The beneficial effects of the present invention are as follows: This solution achieves this by designing the baffle to be composed of multiple concentric sector plates, with a rotation axis disposed between adjacent sectors, and each sector plate connected to a fixed structure via the rotation axis. Furthermore, a support plate is provided below each sector plate, swinging about the sector plate axis to support it, thereby maintaining the sector plate in a horizontal position. This allows the multiple sectors plates to form a complete plate surface, separating the reaction chamber from the sedimentation chamber. When the reaction chamber and the sedimentation chamber need to be connected, the support plate is simply rotated between the two sectors. At this point, the support plate no longer supports the sectors, and the sectors can rotate downward 90 degrees about the rotation axis under their own weight and the pressure of the wastewater in the reaction chamber, thereby maximally opening the communication channel between the reaction chamber and the sedimentation chamber. This not only accelerates the flow rate of wastewater through the baffle per unit time, but also minimizes the amount of wastewater and solid impurities remaining on the baffle assembly.

[0010] The transmission mechanism includes an adjusting shaft fixedly mounted on the bottom of the transmission shaft and coaxial therewith, and an adjusting sleeve. A mounting hole coaxial therewith is provided on the top of the mounting plate. The bottom end of the adjusting shaft passes through the mounting hole. The adjusting sleeve is slidably sleeved on the bottom end of the outer wall of the adjusting shaft. The mounting sleeve is rotatably sleeved on the outer wall of the adjusting sleeve. A limiting groove extending along its axial direction is provided on the inner side wall of the mounting hole. A limiting strip slidably sleeved in the limiting groove is fixedly mounted on the top of the outer wall of the adjusting sleeve. A transmission groove extending along its circumferential direction and inclined downward is provided on the outer wall of the adjusting sleeve. A first transmission member located in the transmission groove and sliding along its extension direction is fixedly mounted on the inner wall of the mounting sleeve.

[0011] The middle and bottom of the outer wall of the adjusting shaft are provided with a first slide groove extending along its circumferential direction, and the first slide groove is an annular groove. The outer wall of the adjusting shaft is provided with a second slide groove extending along its circumferential direction and inclined downward, and the top and bottom of the second slide groove are respectively connected to the two first slide grooves. The bottom of the inner wall of the adjusting sleeve is fixedly installed with a second transmission member that is slidably sleeved in the first slide groove. The inner wall of the adjusting shaft is provided with two receiving grooves, and the two receiving grooves are respectively in the first plane with the two first slide grooves. Both receiving grooves are provided with a limiting mechanism for causing the second transmission member to slide from the first slide groove into the second slide groove when the rotation direction of the adjusting shaft is changed.

[0012] The second slide groove and the second transmission member are each provided with two and are evenly distributed along the circumferential direction of the adjusting shaft. The two limit mechanisms are symmetrically arranged with the midpoint between the two receiving grooves as the center. The limit mechanism includes two sliders located in the receiving groove and sliding in the left and right directions. An elastic member is fixedly installed between the ends of the two sliders close to each other, and a limit block is fixedly installed on the other ends of the two sliders. The ends of the two limit blocks away from the sliders slide through the adjusting shaft and extend into the first slide groove. One side wall of the limit block is an arcuate surface and the arcuate surface is connected to the side wall of the second slide groove. The other side wall of the limit block is an inclined surface and the inclination direction of the inclined surface is consistent with the extension direction of the first slide groove.

[0013] There are two limiting grooves and two limiting strips, and the two limiting grooves and two limiting strips are evenly distributed along the circumferential direction of the adjusting sleeve. There are two transmission grooves and two first transmission parts, and the two transmission grooves and two first transmission parts are evenly distributed along the circumferential direction of the adjusting sleeve.

[0014] The result is that by configuring the transmission mechanism, adjustment shaft, and limit mechanism, we can control the forward and reverse rotation of the driver to control the raising and lowering of the adjustment sleeve, and thus the forward and reverse rotation of the mounting sleeve. This series of actions drives the rotation of the support plate, thereby controlling the opening and closing of the sector plate, achieving the automatic opening and closing function of the partition assembly without the need for an additional drive source.

[0015] A filter assembly is also provided inside the reaction tower. The filter assembly includes a filter screen located above the partition assembly. The filter screen is fixedly mounted on the inner wall of the reaction tower. A scraping mechanism is provided above the filter screen to prevent the filter screen from being blocked.

[0016] The scraping mechanism includes a transmission sleeve fixedly connected to the top of the outer wall of the adjusting shaft. The outer wall of the transmission sleeve is fixedly mounted with a plurality of scrapers evenly distributed along its circumferential direction. The scrapers extend in the radial direction of the transmission sleeve and the end of the scraper away from the transmission sleeve is in sliding contact with the inner wall of the reaction tower. A tower door is provided on the side wall of the reaction tower.

[0017] Both sides of the inner wall of the transmission sleeve are provided with clamping grooves extending along its radial direction, and the bottom of the clamping groove is provided with a connecting groove extending along the axial direction of the transmission sleeve. A clamping block is slidably installed in the clamping groove, and a tightening block is slidably installed in the connecting groove. The bottom of the tightening block slides through the transmission sleeve, and the top of the tightening block is an inclined surface, which gradually inclines upward from the side close to the adjusting shaft to the other side. The end of the clamping block away from the adjusting shaft is an inclined surface matching the inclined surface of the tightening block.

[0018] The advantage is that, by providing a scraping mechanism, a tightening block, and a clamping block, when the baffle assembly is opened, the scraping mechanism, driven by the adjusting shaft, can scrape and clean the filter screen, preventing it from being clogged by solid impurities trapped during wastewater filtration. Furthermore, when the baffle assembly is closed, the scraping mechanism no longer rotates with the adjusting shaft, thereby reducing the load on the drive components and, in turn, the energy consumption of the device.

[0019] The inner wall of the reaction tower is provided with mounting grooves evenly distributed along its circumferential direction, the support plate extends along the radial direction of the mounting sleeve, and the end of the support plate away from the mounting sleeve extends into the mounting groove and is slidably connected thereto, and the top wall and bottom wall of the mounting groove are provided with multiple card slots evenly distributed along the circumferential direction of the reaction tower, the number of card slots on the top wall and the bottom wall is the same, both matching the number of support plates, and symmetrically distributed up and down, the card slots are located below the rotating shaft, and a card block is provided between the card slots on the top wall and the bottom wall of the mounting groove, and the top and bottom of the card block are respectively slidably engaged in the card slots on the top wall and the bottom wall of the mounting groove.

[0020] The effect is that the installation slot can provide effective support for the end of the support plate away from the installation sleeve, thereby enhancing the stability of the support plate. At the same time, the provision of the retaining slot and retaining block can accurately limit the stop position of the support plate's forward and reverse rotation, preventing the installation sleeve and support plate from continuing to rotate due to inertia after the adjustment sleeve stops rotating the installation sleeve, thereby affecting the normal opening and closing of the partition assembly.

[0021] A driving member is fixedly installed on the top of the reaction tower, which is a motor. The top end of the transmission shaft passes through the top of the reaction tower and is connected to the output shaft of the motor. The outer wall of the transmission shaft is fixedly installed with multiple stirring groups evenly distributed along its axial direction. Each stirring group includes multiple stirring blades evenly distributed along the circumferential direction of the transmission shaft.

[0022] The effect is that, by setting up the stirring group, the wastewater can be effectively stirred during the reaction and precipitation process, thereby accelerating the reaction and precipitation rate of the wastewater, and further improving the efficiency of the device in treating waste chips.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The baffle is designed to be composed of multiple concentric fan-shaped plates, with a rotation axis set between adjacent fan-shaped plates, and each fan-shaped plate is connected to a fixed structure via a rotation axis. At the same time, a support plate is placed below each fan-shaped plate, which swings around the fan-shaped plate axis to support it, so that the fan-shaped plate can be kept in a horizontal position. This allows the multiple fan-shaped plates to form a complete plate surface, separating the reaction chamber from the sedimentation chamber. When the reaction chamber and the sedimentation chamber need to be connected, the support plate is simply rotated between the two fan-shaped plates. At this time, the support plate no longer supports the fan-shaped plates, and the fan-shaped plates can rotate downward 90 degrees around the rotation axis under their own gravity and the pressure of the wastewater in the reaction chamber, thereby maximizing the opening of the communication channel between the reaction chamber and the sedimentation chamber. This not only speeds up the flow rate of wastewater through the baffle per unit time, but also minimizes the amount of wastewater and solid impurities remaining on the baffle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic cross-sectional view of the main view of the reaction tower in the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the partition assembly of the present invention when it is opened;

[0027] Figure 3 Schematic diagram of the cross-sectional structure of the reaction tower in the present invention when viewed from above;

[0028] Figure 4 Schematic diagram of the structure of the partition assembly of the present invention;

[0029] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 6 Schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the main cross-sectional structure of the adjustment mechanism of the present invention;

[0032] Figure 8 Schematic diagram of the side structure of the adjustment shaft in the present invention;

[0033] Figure 9 It is a schematic diagram of the cross-sectional structure of the adjustment shaft in the present invention when viewed from above.

[0034] In the figure: 1, reaction tower; 11, driving member; 12, supporting member; 13, water outlet pipe; 14, mounting groove; 15, card slot; 16, tower door; 2, transmission shaft; 21, adjustment shaft; 211, first slide groove; 212, second slide groove; 213, storage groove; 214, slider; 215, limit block; 216, elastic member; 22, stirring group; 3, partition assembly; 31, mounting plate; 311, mounting hole; 312, Limiting slide; 32. Rotating shaft; 33. Fan-shaped plate; 34. Mounting sleeve; 341. First transmission member; 35. Support plate; 36. Adjusting sleeve; 361. Limiting bar; 362. Transmission groove; 363. Second transmission member; 37. Clamping block; 4. Filter assembly; 41. Filter screen; 42. Transmission sleeve; 421. Clamping slide; 422. Clamping block; 423. Connecting slide; 424. Tightening block; 43. Scraper. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] See also Figures 1-9 The present invention provides the following technical solution: a wastewater treatment device for catalyst recovery, comprising a reaction tower 1, a baffle assembly 3 and a filter assembly 4. The baffle assembly 3 is located in the reaction tower 1 and divides the space in the reaction tower 1 into a reaction chamber located in the upper layer and a sedimentation chamber located in the lower layer. The filter assembly 4 is located above the baffle assembly 3 and its function is to filter the wastewater flowing from the reaction chamber into the sedimentation chamber.

[0037] refer to Figure 1 As shown, a driver 11 is fixedly mounted on the top of the reaction tower 1. In this embodiment, driver 11 is a motor. In other embodiments, driver 11 may also be a rotary cylinder or a rotary hydraulic cylinder. At least three support members 12 are fixedly mounted on the bottom edge of the reaction tower 1, evenly distributed along its circumference. A water outlet pipe 13 is fixedly mounted in the middle of the bottom end of the reaction tower 1, while a water inlet pipe is fixedly mounted on the top.

[0038] refer to Figure 1 and Figure 6 As shown, a drive shaft 2 coaxial with the reaction tower 1 is rotatably mounted inside the reaction tower 1. The top end of the drive shaft 2 passes through the top of the reaction tower 1 and is connected to the output shaft of the driving member 11 via a coupling. A plurality of stirring groups 22 are fixedly mounted on the outer wall of the drive shaft 2. These stirring groups 22 are evenly distributed along the axis of the drive shaft 2. Each stirring group 22 includes a plurality of stirring blades, which are evenly distributed along the circumference of the drive shaft 2. The bottom end of the drive shaft 2 is fixedly mounted with an adjustment shaft 21 coaxially arranged therewith.

[0039] refer to Figure 2 and Figure 3As shown, the partition assembly 3 includes a mounting plate 31 , a rotating shaft 32 , a sector plate 33 , a mounting sleeve 34 and a support plate 35 .

[0040] A mounting hole 311 is coaxially disposed at the top center of the mounting disk 31. The mounting hole 311 is rotatably sleeved onto the outer wall of the adjustment shaft 21. The mounting disk 31 and the adjustment shaft 21 are coaxially disposed. A plurality of rotating shafts 32 are evenly distributed along the circumference of the mounting disk 31. The rotating shafts 32 are located between the mounting disk 31 and the inner wall of the reaction tower 1, with their axes extending radially along the mounting disk 31. The ends of the rotating shafts 32 are rotatably mounted on the outer wall of the mounting disk 31 and the inner wall of the reaction tower 1, respectively. The number of sector plates 33 is the same as the number of rotating shafts 32. Multiple sector plates 33 are sequentially disposed between two adjacent rotating shafts 32, forming a complete circular plate together with the mounting disk 31 and the rotating shafts 32. The outer wall of each rotating shaft 32 is fixedly connected to the sidewall of a sector plate 33.

[0041] refer to Figure 2 、 Figure 4 and Figure 5 As shown, the mounting sleeve 34 is located below the mounting plate 31, coaxial therewith, and sleeved on the outer wall of the adjusting shaft 21. The number of support plates 35 is the same as that of the sector plates 33 and is evenly distributed in the circumferential direction of the mounting sleeve 34. The plurality of support plates 35 are respectively located at the bottom of the plurality of sector plates 33. The inner wall of the reaction tower 1 is provided with a mounting groove 14 extending along its circumferential direction. The mounting groove 14 is an annular groove. The support plate 35 extends in the radial direction of the mounting sleeve 34, and the end of the support plate 35 away from the mounting sleeve 34 extends into the mounting groove 14 and is slidably connected thereto. Next, the top and bottom walls of the mounting groove 14 are each provided with a plurality of slots 15 evenly distributed along the circumference of the reaction tower 1. The number of slots 15 on the top and bottom walls is the same, matching the number of support plates 35, and is symmetrically distributed vertically. The slots 15 are located below the rotation axis 32. A block 37 is provided between the slots 15 on the top and bottom walls of the mounting groove 14. The top and bottom of the block 37 slide into the slots 15 on the top and bottom walls of the mounting groove 14, respectively. A transmission mechanism is installed inside the mounting sleeve 34 to drive its rotation. By rotating the mounting sleeve 34, the position of the support plate 35 can be adjusted so that the support plate 35 no longer supports the sector plate 33. At this time, the sector plate 33 will rotate downward about the rotation axis 32, thereby connecting the reaction chamber and the precipitation chamber.

[0042] refer to Figure 6As shown, the transmission mechanism includes an adjustment sleeve 36, which is sleeved between the outer wall of the adjustment shaft 21 and the inner wall of the mounting sleeve 34. Driven by the adjustment shaft 21, the adjustment sleeve 36 slides back and forth along its axis. A limiting groove 312 extending along its axis is defined on the inner sidewall of the mounting hole 311 of the mounting plate 31. A limiting bar 361 is fixedly mounted on the top of the outer wall of the adjustment sleeve 36 and slides within the limiting groove 312. There are two limiting grooves 312 and two limiting bars 361, each evenly distributed along the circumference of the adjustment sleeve 36. A transmission groove 362 extending along its circumference and angled downward is also defined on the outer wall of the adjustment sleeve 36. A first transmission member 341 is fixedly mounted on the inner wall of the mounting sleeve 34, located within the transmission groove 362 and sliding along its extension direction. There are also two transmission slots 362 and two first transmission members 341, and these two transmission slots 362 and two first transmission members 341 are evenly distributed along the circumference of the adjustment sleeve 36. In this embodiment, the first transmission member 341 is a roller; in other embodiments, the first transmission member 341 may also be a roller whose axis extends radially along the mounting sleeve 34.

[0043] refer to Figure 7 As shown, the outer wall of the adjustment shaft 21 is provided with first chute grooves 211 extending along its circumference in the middle and bottom portions. These first chute grooves 211 are annular grooves. Furthermore, the outer wall of the adjustment shaft 21 is provided with second chute grooves 212 extending along its circumference and arranged at a downward angle. The top and bottom portions of the second chute grooves 212 are respectively connected to the two first chute grooves 211. A second transmission member 363 is fixedly mounted on the bottom portion of the inner wall of the adjustment sleeve 36, which slides within the first chute grooves 211. This second transmission member 363 is a roller. In other embodiments, the second transmission member 363 can also be a roller with an axis extending radially along the adjustment sleeve 36.

[0044] The inner wall of the adjustment shaft 21 defines two receiving grooves 213, which are coplanar with the two first chutes 211. A limiting mechanism is provided within the receiving grooves 213 to allow the second transmission member 363 to slide from the first chutes 211 into the second chutes 212 when the rotational direction of the adjustment shaft 21 is changed.

[0045] When the adjustment shaft 21 rotates forward, the second transmission member 363 slides within the first chute 211 at the bottom of the adjustment shaft 21. When the adjustment shaft 21 rotates reversely, the second transmission member 363, driven by the limiting mechanism, slides from the first chute 211 into the second chute 212 and slides along the second chute 212. At this point, driven by the second transmission member 363, the adjustment sleeve 36 rises along its axis, driving the mounting plate 31 to rotate a certain angle. After the second transmission member 363 slides from the second chute 212 into the first chute 211 at the top of the adjustment shaft 21, it continues to slide within the first chute 211, while the adjustment sleeve 36 stops rising.

[0046] When the adjusting shaft 21 rotates forward again, the second transmission member 363, driven by the limiting mechanism, slides from the first sliding groove 211 at the top of the adjusting shaft 21 into the second sliding groove 212, and continues to slide along the second sliding groove 212 until it finally slides into the first sliding groove 211 at the bottom of the adjusting shaft 21. Simultaneously, as the second transmission member 363 slides along the second sliding groove 212, it drives the adjusting sleeve 36 downward along its axis.

[0047] refer to Figure 8 and Figure 9 As shown, two second slide grooves 212 and two second transmission members 363 are provided, and they are evenly distributed along the circumferential direction of the adjustment shaft 21. The two limiting mechanisms are symmetrically arranged with the midpoint between the two receiving grooves 213 as the center. The limiting mechanism includes two sliders 214 located in the receiving groove 213 and capable of sliding in the left and right directions. An elastic member 216 is fixedly installed between the ends of the two sliders 214 that are close to each other, and the elastic member 216 is a spring. A limiting block 215 is fixedly installed at the other end of the two sliders 214, and the ends of the two limiting blocks 215 away from the sliders 214 slide through the adjustment shaft 21 and extend into the corresponding first slide groove 211.

[0048] One side wall of the limit block 215 is designed as an arc surface, which is adapted to the side wall of the second slide groove 212; and the other side wall of the limit block 215 is an inclined surface, the inclination direction of which is consistent with the extension direction of the first slide groove 211.

[0049] When the adjustment shaft 21 rotates forward, the second transmission member 363 slides within the first chute 211 at the bottom of the adjustment shaft 21. When the second transmission member 363 reaches the inclined surface of the stop block 215, it continues to slide along this inclined surface, at which point the stop block 215 is pressed into the receiving groove 213. When the adjustment shaft 21 rotates backward, the second transmission member 363 slides to the curved surface of the stop block 215 and, guided by this curved surface, smoothly slides into the second chute 212.

[0050] When the second transmission member 363 slides within the first chute 211 at the top of the adjustment shaft 21, the two corresponding stoppers 215 of the first chute 211 are arranged symmetrically. Therefore, when the adjustment shaft 21 rotates in the reverse direction, the second transmission member 363 can slide unimpeded within the first chute 211. When the adjustment shaft 21 rotates forward again, the second transmission member 363, under the action of the curved surface of the stopper 215, slides from the first chute 211 into the second chute 212. In this way, the adjustment sleeve 36 can achieve reciprocating up and down sliding along its axis.

[0051] refer to Figure 1 and Figure 5 As shown, the filter assembly 4 includes a filter screen 41 located above the partition assembly 3, and the filter screen 41 is fixedly mounted on the inner wall of the reaction tower 1. A scraping mechanism is provided above the filter screen 41, which is used to prevent the filter screen 41 from being blocked.

[0052] The scraping mechanism includes a transmission sleeve 42 fixedly mounted on the top of the outer wall of the adjustment shaft 21. Multiple scrapers 43 are fixedly mounted on the outer wall of the transmission sleeve 42, evenly distributed along the circumference of the transmission sleeve 42. The scrapers 43 extend radially along the transmission sleeve 42, and the ends of the scrapers 43 facing away from the transmission sleeve 42 are in sliding contact with the inner wall of the reaction tower 1. To remove material accumulated on the filter screen 41, a tower door 16 is provided on the side wall of the reaction tower 1.

[0053] refer to Figure 7 As shown, both sides of the inner sidewall of the transmission sleeve 42 are provided with clamping grooves 421 extending in the radial direction thereof. The bottom of the clamping grooves 421 further defines a connecting groove 423 extending along the axis of the transmission sleeve 42. A clamping block 422 is slidably mounted within the clamping grooves 421, while a tightening block 424 is slidably mounted within the connecting grooves 423. The bottom of the tightening block 424 slides through the transmission sleeve 42 and extends outward for a certain distance. Its top is designed as an inclined surface that gradually slopes upward from the side closest to the adjustment shaft 21 to the other side. The end of the clamping block 422, away from the adjustment shaft 21, is designed as an inclined surface that mates with the inclined surface of the tightening block 424.

[0054] When the adjustment sleeve 36 rises, it pushes the portion of the tightening block 424 that extends out of the transmission sleeve 42 into the connecting chute 423. At this point, due to the interaction between the inclined surface at the top of the tightening block 424 and the inclined surface of the clamping block 422, the tightening block 424 drives the clamping block 422 to slide toward the adjustment shaft 21 and tightly contact it. In this state, the transmission sleeve 42, under the action of the clamping block 422, will rotate synchronously in the opposite direction with the adjustment shaft 21, thereby driving the scraper 43 to scrape and clean the filter screen 41. When the adjustment sleeve 36 descends, the tightening block 424 descends under the action of its own weight. At this point, the clamping block 422 is no longer subjected to the thrust from the tightening block 424 and can no longer apply pressure to the adjustment shaft 21. As a result, the transmission sleeve 42 can no longer rotate with the adjustment shaft 21.

[0055] The working principle of the embodiment of the present invention is as follows: During the wastewater treatment process, wastewater is first discharged into the reaction chamber at the top of reaction tower 1, and chemical reagents are added to precipitate the heavy metal ions in the wastewater. Simultaneously, driver 11 is activated, driving drive shaft 2 in forward rotation. Drive shaft 2 then stirs the wastewater via agitator assembly 22, accelerating the precipitation of heavy metal ions in the wastewater.

[0056] After the reaction is complete, the control driver 11 drives the transmission shaft 2 in the opposite direction. As the transmission shaft 2 rotates, it also drives the adjustment shaft 21 in the opposite direction. At this point, the second transmission member 363, guided by the curved surface of the stopper 215, slides from the first slot 211 at the bottom of the outer wall of the adjustment shaft 21 into the second slot 212 and continues to slide upward along the second slot 212. This movement causes the adjustment sleeve 36, propelled by the second transmission member 363, to rise along its axis. Simultaneously, as the adjustment sleeve 36 rises, the first transmission member 341 slides downward along the transmission slot 362, thereby rotating the mounting sleeve 34. The rotation of the mounting sleeve 34 causes the support plate 35 to rotate between the two sector plates 33, at which point the support plate 35 no longer supports the sector plates 33. Consequently, under the pressure of the wastewater above and the force of gravity, the sector plates 33 rotate downward 90 degrees around the rotation axis 32, fully opening the partition assembly 3. In this way, the wastewater can fall into the sedimentation chamber at the bottom of the reaction tower 1 for sedimentation.

[0057] When wastewater passes through the baffle assembly 3, it first flows through the filter screen 41 for filtration. As the adjustment sleeve 36 rises, it pushes the clamping block 422 into the transmission sleeve 42 and presses the clamping block 422 against the outer wall of the adjustment shaft 21. At this point, the clamping block 422 causes the transmission sleeve 42 to rotate synchronously with the adjustment shaft 21. This rotational motion drives the scraper 43 to scrape and clean the filter screen 41, preventing clogging of the filter screen 41 due to filtered precipitated impurities.

[0058] After all the wastewater has entered the sedimentation chamber, the driving member 11 is controlled to drive the transmission shaft 2 and the adjustment shaft 21 to rotate in the forward direction again. At this time, the second transmission member 363, under the guidance of the arc-shaped surface of the limit block 215, slides from the first slide groove 211 at the top of the outer wall of the adjustment shaft 21 into the second slide groove 212, and slides downward along the second slide groove 212. This movement causes the adjustment sleeve 36 to descend along its own axis under the push of the second transmission member 363. At the same time, as the adjustment sleeve 36 descends, the first transmission member 341 slides upward along the transmission groove 362, thereby driving the installation sleeve 34 to rotate in the opposite direction. The reverse rotation of the installation sleeve 34 causes the support plate 35 to rotate in the opposite direction. As the support plate 35 rotates in the opposite direction, it drives the fan plate 33 to rotate 90 degrees upward with the rotation axis 32 as the axis, thereby achieving full closure of the partition assembly 3.

[0059] Although the embodiments of the present invention have been shown and described above, it will be appreciated that the above embodiments are illustrative only and are not to be construed as limiting the present invention.

Claims

1. A wastewater treatment device for catalyst recovery, comprising a reaction tower and a transmission shaft located inside the reaction tower and coaxial with the reaction tower, characterized in that: A partition assembly is provided in the reaction tower for dividing the space in the reaction tower into a reaction chamber located in the upper layer and a precipitation chamber located in the lower layer; The partition assembly includes a mounting plate coaxially arranged with the transmission shaft, a plurality of rotating shafts uniformly distributed along the circumferential direction of the mounting plate, and a plurality of sector plates, the two ends of the rotating shaft are rotatably mounted on the outer wall of the mounting plate and the inner wall of the reaction tower respectively, and its axis extends along the radial direction of the mounting plate, the plurality of sector plates are sequentially arranged between two adjacent rotating shafts and together with the mounting plate and the rotating shaft form a complete circular plate, the outer wall of the rotating shaft is fixedly connected to the side wall of one of the sector plates, the bottom of the mounting plate is rotatably mounted with a mounting sleeve coaxial therewith, the outer wall of the mounting sleeve is fixedly mounted with a plurality of support plates uniformly distributed along its circumferential direction, the plurality of support plates are respectively located at the bottom of the plurality of sector plates, and a transmission mechanism for driving the same to rotate is installed inside the mounting sleeve; The transmission mechanism includes an adjusting shaft fixedly mounted on the bottom of the transmission shaft and coaxial therewith, and an adjusting sleeve, a mounting hole coaxial therewith is opened on the top of the mounting plate, the bottom end of the adjusting shaft passes through the mounting hole, the adjusting sleeve is slidably sleeved on the bottom end of the outer wall of the adjusting shaft, the mounting sleeve is rotatably sleeved on the outer wall of the adjusting sleeve, a limiting slide groove extending along its axial direction is opened on the inner side wall of the mounting hole, a limiting strip slidably sleeved in the limiting slide groove is fixedly mounted on the top of the outer wall of the adjusting sleeve, a transmission groove extending along its circumferential direction and inclined downward is opened on the outer wall of the adjusting sleeve, and a first transmission member located in the transmission groove and sliding along its extension direction is fixedly mounted on the inner wall of the mounting sleeve; The middle portion and the bottom portion of the outer wall of the adjusting shaft are both provided with a first slide groove extending along the circumferential direction thereof, and the first slide groove is an annular groove. The outer wall of the adjusting shaft is provided with a second slide groove extending along the circumferential direction thereof and inclined downwardly, and the top and bottom of the second slide groove are respectively communicated with the two first slide grooves. The bottom portion of the inner wall of the adjusting sleeve is fixedly installed with a second transmission member that is slidably sleeved in the first slide groove. The inner wall of the adjusting shaft is provided with two receiving grooves, and the two receiving grooves are respectively in a first plane with the two first slide grooves. A limiting mechanism is provided in the two receiving grooves for causing the second transmission member to slide from the first slide groove into the second slide groove when the rotation direction of the adjusting shaft is changed; There are two limiting grooves and two limiting strips, and the two limiting grooves and two limiting strips are evenly distributed along the circumferential direction of the adjusting sleeve. There are two transmission grooves and two first transmission parts, and the two transmission grooves and two first transmission parts are evenly distributed along the circumferential direction of the adjusting sleeve.

2. The wastewater treatment device for catalyst recovery according to claim 1, characterized in that: The second slide groove and the second transmission member are each provided with two and are evenly distributed along the circumferential direction of the adjusting shaft. The two limit mechanisms are symmetrically arranged with the midpoint between the two receiving grooves as the center. The limit mechanism includes two sliders located in the receiving groove and sliding in the left and right directions. An elastic member is fixedly installed between the ends of the two sliders close to each other, and a limit block is fixedly installed on the other ends of the two sliders. The ends of the two limit blocks away from the sliders slide through the adjusting shaft and extend into the first slide groove. One side wall of the limit block is an arc surface and the arc surface is connected to the side wall of the second slide groove. The other side wall of the limit block is an inclined surface and the inclination direction of the inclined surface is consistent with the extension direction of the first slide groove.

3. The wastewater treatment device for catalyst recovery according to claim 1, characterized in that: A filter assembly is further provided inside the reaction tower. The filter assembly includes a filter screen located above the partition assembly. The filter screen is fixedly mounted on the inner wall of the reaction tower. A scraping mechanism is provided above the filter screen to prevent the filter screen from being blocked.

4. The wastewater treatment device for catalyst recovery according to claim 3, characterized in that: The scraping mechanism includes a transmission sleeve fixedly sleeved on the top of the outer wall of the adjusting shaft, and the outer wall of the transmission sleeve is fixedly mounted with a plurality of scrapers evenly distributed along its circumferential direction. The scrapers extend along the radial direction of the transmission sleeve and one end of the scraper away from the transmission sleeve is in sliding contact with the inner wall of the reaction tower, and a tower door is provided on the side wall of the reaction tower.

5. The wastewater treatment device for catalyst recovery according to claim 4, characterized in that: Both sides of the inner side wall of the transmission sleeve are provided with a clamping groove extending along its radial direction, and the bottom of the clamping groove is provided with a connecting groove extending along the axial direction of the transmission sleeve. A clamping block is slidably installed in the clamping groove, and a tightening block is slidably installed in the connecting groove. The bottom of the tightening block slides through the transmission sleeve, and the top of the tightening block is an inclined surface, which gradually inclines upward from the side close to the adjusting shaft to the other side. The end of the clamping block away from the adjusting shaft is an inclined surface that matches the inclined surface of the tightening block.

6. The wastewater treatment device for catalyst recovery according to claim 1, characterized in that: The inner wall of the reaction tower is provided with a mounting groove extending along its circumferential direction, the support plate extends along the radial direction of the mounting sleeve, and the end of the support plate away from the mounting sleeve extends into the mounting groove and is slidably connected thereto, and the top wall and bottom wall of the mounting groove are provided with a plurality of slots evenly distributed along the circumferential direction of the reaction tower, the number of slots on the top wall and the bottom wall is the same, both matching the number of support plates, and symmetrically distributed up and down, the slot is located below the rotating shaft, and a card block is provided between the card slots on the top wall and the bottom wall of the mounting groove, the top of the card block is slidably engaged in the card slot on the top wall of the mounting groove, and the bottom of the card block is slidably engaged in the card slot on the bottom wall of the mounting groove.

7. The wastewater treatment device for catalyst recovery according to claim 1, characterized in that: A driving member is fixedly installed on the top of the reaction tower, and the driving member is a motor. The top end of the transmission shaft passes through the top of the reaction tower and is transmission-connected to the output shaft of the motor. The outer wall of the transmission shaft is fixedly installed with multiple stirring groups evenly distributed along its axial direction, and each stirring group includes multiple stirring blades evenly distributed along the circumferential direction of the transmission shaft.

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