Wild jujube wastewater treatment device

Abstract

The invention relates to the technical field of wastewater treatment, and particularly discloses a wild jujube wastewater treatment device which comprises an air flotation machine body, a solid-liquid separation module is arranged on the air flotation machine body and comprises a supporting unit, a filtering unit, an isolating unit and a cleaning unit, and the supporting unit comprises a base fixedly arranged on the air flotation machine body; the supporting column is fixedly arranged on the base and vertically arranged in the axial direction of the base, the telescopic rod is connected to the base in the circumferential direction through a spring, the rotating wheel rotates on the telescopic rod, and the filtering unit comprises a fixing cylinder axially sliding on the supporting column, a driving groove annularly formed in the inner wall of the fixing cylinder and a driving column arranged on the supporting column and located in the driving groove. The device has the beneficial effects that when too many impurities are accumulated, the filter screen can descend and rotate while descending, the impurities are continuously pushed in the rotating direction, the process is circulated, finally, the impurities on the filter screen are scraped off by the scraping plate, manpower is saved, meanwhile, continuous cleaning is not needed by means of a power mechanism, and energy consumption is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a device for treating sour jujube wastewater. Background Art

[0002] In the processing of sour jujube, in order to remove impurities and pesticide residues on the surface of sour jujube, it is usually necessary to soak and wash the sour jujube in clean water. This step will produce a large amount of cleaning wastewater, which may contain pollutants such as sour jujube peel, pulp fragments, mud and sand, and pesticide residues.

[0003] The Chinese patent with the authorization announcement number CN116495947B discloses a wastewater treatment process for washing water of jujube. A wastewater treatment process for washing water of jujube includes the following steps: washing water of jujube is first filtered through a two-stage grid, enters a primary sedimentation tank for sedimentation, filtered, enters a regulating tank, is lifted to a flotation system by a lifting pump, the supernatant flows to an intermediate water tank, is heated, is lifted to a UASB anaerobic tank by a lifting pump, enters an A / O biochemical system, and then is precipitated in a secondary sedimentation tank and a tertiary sedimentation tank, filtered, and a filtrate and a filter residue D are generated, and the filtrate is discharged and recycled.

[0004] A Chinese patent with authorization announcement number CN117964166B discloses a solid-liquid separation device, including a stirring tank, characterized in that a water inlet is provided on one side of the upper end of the stirring tank, an impurity conveyor is provided on the upper end of the stirring tank, a stirring motor is installed on the upper end of the stirring tank, and the stirring motor is connected to a stirring shaft downwardly, a solid-liquid separation tank is provided on one side of the stirring tank, a water outlet is opened at the bottom of the side wall of the stirring tank, a plurality of microporous filters are provided on the side wall of the solid-liquid separation tank, a water collecting trough is connected at the lower end of the water collecting trough, a drain pipe is connected at the lower part of the water collecting trough, and an extrusion hood is provided outwardly at the lower part of the solid-liquid separation tank; a conveying trough is provided at the bottom of the solid-liquid separation tank, an extrusion separation cylinder connected to the conveying trough is provided in the extrusion hood, a spiral extrusion rod is rotatably connected in the conveying trough and the extrusion separation cylinder, and an extrusion motor for driving the spiral extrusion rod to rotate is installed at the free end of the extrusion hood.

[0005] The wastewater generated by the existing jujube cleaning machine is generally treated by a flotation machine after solid-liquid separation. However, when the wastewater is separated into solid and liquid, the jujube peel and pulp fragments in the wastewater are easily accumulated on the filter, thereby clogging the filter. Workers need to continuously clean the filter, which increases their workload. Summary of the invention

[0006] The present invention provides a device for treating wastewater from sour jujube, aiming to solve the technical problem that wastewater generated by an existing sour jujube cleaning machine in the related technology is generally first subjected to solid-liquid separation and then treated by a flotation machine, but when the wastewater is subjected to solid-liquid separation, sour jujube peel and pulp fragments in the wastewater are easily accumulated on a filter screen, thereby clogging the filter screen, and workers need to continuously clean the filter screen, which increases the workers' workload.

[0007] The invention discloses a device for treating jujube wastewater, comprising: an air flotation machine body, a solid-liquid separation module being arranged on the air flotation machine body, the solid-liquid separation module comprising a support unit, a filter unit, an isolation unit and a cleaning unit, the support unit comprising a base fixedly arranged on the air flotation machine body, a support column fixedly arranged on the base and vertically arranged along its axial direction, a telescopic rod circumferentially connected to the base through a spring, and a rotating wheel rotating on the telescopic rod, the filter unit comprising a fixed cylinder axially sliding on the support column, a driving groove annularly arranged on the inner wall of the fixed cylinder, a driving column arranged on the support column and located in the driving groove, a filter screen arranged on the fixed cylinder, and a plurality of arc-shaped closing plates vertically slidingly matched on the outer wall of the filter screen, the driving groove having a plurality of first The inclined section and the vertical section are connected to each other, and a rotating plate is rotatably installed near the lower end of the vertical section; the adjacent closing plates are vertically slidably matched, the bottom of the closing plate is rotatably matched with the rotating wheel, the upper surface of the closing plate has a lower plane, an upper plane and a connecting section, the upper plane is higher than the height of the lower plane, the isolation unit includes two baffles vertically slidably connected to the support column by a spring, and the two baffles are arranged along the circumference of the support column, the baffles abut against the filter screen, so that a chamber for adding wastewater is formed on the inner side of the two baffles; the cleaning unit includes an arc-shaped scraper plate that vertically slides on the support column and is rotatably connected to the fixed cylinder, and a top rod fixed to the scraper plate, the scraper plate abuts against the filter screen, and the top rod abuts against the upper surface of the closing plate.

[0008] Beneficial effects: wastewater falls into the liquid inlet chamber between the two baffles. When too much impurities accumulate, the filtering speed of the filter will decrease, and the weight of the filter will increase, forcing the filter to drop. When the fixed cylinder descends along the support column, the fixed cylinder drives the filter to rotate, and the impurities will gradually accumulate at the bottom of the baffle in the rotating direction. When the filter drops close to the limit position, the baffles on both sides gradually begin to separate from the filter, thereby forming a gradually increasing opening between the baffle and the filter. As a result, the waste liquid in the liquid inlet chamber will gradually flow out through the opening, and the impurities accumulated at the bottom of the baffle in the rotating direction will be gradually flushed out to the outside. When the filter drops to the limit position, the opening between the baffle and the filter reaches the maximum state. At this time, the amount of liquid discharged from the liquid inlet chamber is greater than the amount of liquid added by the liquid inlet pipe, so the amount of liquid in the liquid inlet chamber gradually decreases, and the telescopic rod begins to push the filter up, and this cycle continues. Finally, the scraper plate scrapes off the impurities on the filter screen, and can make the filter screen rotate according to the blockage situation on the filter screen, while continuously pushing the impurities in the direction of rotation. Finally, after reaching the scraper plate, the impurities are cleaned out, which not only saves manpower, but also does not require the help of a power mechanism for continuous cleaning, which also reduces energy consumption.

[0009] Preferably, the base is an annular structure, and the support column is fixedly mounted on the support column by a plurality of support rods arranged circumferentially.

[0010] Preferably, the two baffles are arranged perpendicular to each other.

[0011] Preferably, a protrusion is provided on the outer side wall of the filter screen, a vertical slide groove is provided on the inner side surface of the closing plate at a position corresponding to the protrusion, and the protrusion is located in the slide groove.

[0012] The effect is to ensure that the closing plate can slide vertically on the filter screen.

[0013] Preferably, the number of the closing plates is 4.

[0014] Preferably, two scraper plates are provided, and the two scraper plates and the two baffles are evenly arranged along the circumference of the support column.

[0015] The effect is that the cleaning effect of impurities can be further improved.

[0016] Preferably, the rotating plate is rotated in the driving groove by a torsion spring, and the rotating plate is arranged at an angle and is flush with the inclined surface of the inclined section.

[0017] The effect is that after the driving column passes through the rotating plate and enters the bottom of the vertical section, the rotating plate can prevent the driving column from returning upward along the original path, forcing it to continue to enter the next inclined section.

[0018] Preferably, the support column is connected to an air jet pipe for sliding up and down movement via a spring, and the air jet pipe is horizontally arranged along the radial direction of the support column, the spray hole of the air jet pipe is arranged upward, and the upper surface of the air jet pipe abuts against the lower surface of the filter screen.

[0019] The effect is that the upper surface of the air jet pipe abuts against the lower surface of the filter screen, so that the air jet pipe can blow out the impurities blocked in the filter screen in advance, so that the impurities can be scraped out when they reach the scraper plate.

[0020] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: when wastewater falls into the liquid inlet cavity between the two baffles, when too much impurities are accumulated, the filtering speed of the filter screen will decrease, the weight of the filter screen will increase, and the filter screen will be forced to descend. When the fixed cylinder descends along the support column, the fixed cylinder drives the filter screen to rotate, and the impurities will gradually accumulate at the bottom of the baffle in the rotation direction. When the filter screen descends to the limit position, the baffles on both sides gradually begin to separate from the filter screen, thereby forming a gradually increasing opening between the baffle and the filter screen. As a result, the waste liquid in the liquid inlet cavity will gradually flow out through the opening to the outside, and the impurities accumulated at the bottom of the baffle in the rotation direction will be gradually flushed out to the outside. When the filter screen descends to the limit position, the opening between the baffle and the filter screen reaches the maximum state. At this time, the amount of liquid discharged from the liquid inlet cavity is greater than the amount of liquid added by the liquid inlet pipe, so the amount of liquid in the liquid inlet cavity gradually decreases, and the telescopic rod begins to push the filter screen up, and this cycle continues. Finally, the scraper plate scrapes off the impurities on the filter screen, and can make the filter screen rotate according to the blockage situation on the filter screen, while continuously pushing the impurities in the direction of rotation. Finally, after reaching the scraper plate, the impurities are cleaned out, which not only saves manpower, but also does not require the help of a power mechanism for continuous cleaning, which also reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the solid-liquid separation module of the present invention.

[0023] Figure 3 It is an exploded schematic diagram of the base and the filter screen of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the closing plate of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the support column of the present invention.

[0026] Figure 6 It is a cross-sectional view of the fixing tube of the present invention.

[0027] Reference numerals: 10. Air flotation machine body; 11. Flocculation tank; 12. Air flotation tank; 13. Liquid inlet pipe; 20. Base; 21. Support column; 22. Telescopic rod; 23. Rotor; 30. Fixed cylinder; 31. Filter screen; 32. Drive groove; 33. Rotating plate; 34. Closing plate; 35. Lower plane; 36. Upper plane; 37. Connecting section; 38. Drive column; 40. Fixed frame; 41. Sliding rod; 42. Baffle; 50. Scraper plate; 51. Push rod; 60. Jet pipe. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] like Figures 1 to 6 As shown, a specific embodiment of a device for treating sour jujube wastewater according to the present invention comprises an air flotation machine body 10 and a solid-liquid separation module.

[0030] The air flotation machine body 10 includes a liquid inlet pipe 13, a flocculation tank 11 and an air flotation tank 12. The liquid inlet pipe 13 can first send the sour jujube wastewater to the solid-liquid separation module to filter out large particles of sour jujube peel, pulp fragments and other impurities in the wastewater. The wastewater after preliminary filtration enters the flocculation tank 11 for flocculation treatment, and then the flocculated wastewater enters the air flotation tank 12 for treatment. It is particularly emphasized that the flocculation treatment and air flotation treatment in the air flotation machine body 10 are both existing technologies and will not be described in detail here.

[0031] The solid-liquid separation module includes a supporting unit, a filtering unit, an isolation unit and a cleaning unit.

[0032] like Figure 1 , Figure 2 and Figure 3 The supporting unit includes a base 20, a supporting column 21, a telescopic rod 22 and a rotating wheel 23.

[0033] The base 20 is fixedly mounted on the air flotation machine body 10 and is located above the flocculation tank 11 . The base 20 is an annular structure, and a support column 21 is fixedly mounted in the middle thereof via a support rod. The support column 21 is vertically arranged along the axial direction of the base 20 .

[0034] A plurality of telescopic rods 22 are arranged along the circumference of the upper surface of the base 20. The telescopic rods 22 are arranged vertically. A spring is sleeved outside the telescopic rods 22. One end of the spring is connected to the telescopic rod 22, and the other end is connected to the base 20. A rotating wheel 23 is rotatably installed on the upper end of the telescopic rod 22.

[0035] The filter unit includes a fixed cylinder 30 , a filter screen 31 , a driving slot 32 , a closing plate 34 and a driving column 38 .

[0036] like Figures 3 to 6 As shown, the fixed cylinder 30 is slidably fitted on the outside of the support column 21 and is coaxially arranged with the support column 21, so that the fixed cylinder 30 can slide up and down along the axial direction of the support column 21. A filter screen 31 is fixedly mounted on the fixed cylinder 30.

[0037] A driving groove 32 is formed on the inner wall of the fixing tube 30 . The driving groove 32 has an inclined section and a vertical section. The vertical section connects the ends of two adjacent inclined sections.

[0038] A rotating plate 33 is rotatably installed near the lower end of the vertical section through a torsion spring. The rotating plate 33 is tilted and flush with the inclined surface of the inclined section, so that the lower end of the vertical section can be blocked.

[0039] A driving column 38 is provided on the outer wall of the support column 21, and the end of the driving column 38 is located in the driving groove 32. When the fixed cylinder 30 descends along the support column 21, the driving column 38 rises along the inclined section of the driving groove 32, thereby forcing the fixed cylinder 30 to drive the filter 31 to rotate. In this embodiment, the rotation direction of the filter 31 is set to be clockwise until the driving column 38 reaches the top of the inclined section. When the fixed cylinder 30 rises along the support column 21, the driving column 38 descends along the vertical section of the driving groove 32. When the driving column 38 reaches the bottom position of the vertical section, it will first push the rotating plate 33, and after passing through the rotating plate 33, it enters the bottom of the vertical section. The rotating plate 33 can prevent the driving column 38 from returning upward along the original path, forcing it to continue to enter the next inclined section, and this cycle is repeated.

[0040] like Figure 4 , a plurality of arc-shaped closing plates 34 are vertically slidably matched on the outer wall of the filter 31, a convex block is provided on the outer wall of the filter 31, and a slide groove is vertically provided at a corresponding position on the inner side of the closing plate 34, and the convex block is located in the slide groove. In this embodiment, four closing plates 34 are provided, and the four closing plates 34 are connected end to end to form a ring covering the outer side of the filter 31.

[0041] Two adjacent closing plates 34 are vertically slidably matched with each other, and the two closing plates 34 are also slidably matched with each other through the manner of a protrusion and a sliding groove.

[0042] The two ends of the upper surface of the closing plate 34 are of different heights, and the two planes are connected and transitioned by an arc surface, so that the upper surface of the closing plate 34 has a lower plane 35, an upper plane 36 and a connecting section 37. It is particularly noted that the side of the closing plate 34 located in the rotation direction of the filter screen 31 is the lower plane 35.

[0043] In the initial state, the rotating wheel 23 on the telescopic rod 22 abuts against the bottom of the closing plate 34 and rotates to lift up the four closing plates 34. The bottoms of the four closing plates 34 are flush, and a cavity for filtering wastewater is formed inside.

[0044] The isolation unit includes a fixing frame 40 , a sliding rod 41 and a baffle 42 .

[0045] like Figure 2 , Figure 3 and Figure 5Two fixing frames 40 are fixedly mounted on the outer wall of the support column 21, and the two fixing frames 40 are arranged at intervals along the circumference of the support column 21. The fixing frames 40 are vertically slidably connected with a slide bar 41 through a spring, and a baffle 42 is fixedly connected to the lower end of the slide bar 41. The baffle 42 is arranged along the radial direction of the support column 21, and the bottom of the baffle 42 abuts against the filter screen 31, one end of the baffle 42 abuts against the outer wall of the fixed cylinder 30, and the other end abuts against the inner wall of the closing plate 34.

[0046] It is particularly emphasized that in this embodiment, the two baffles 42 are arranged perpendicular to each other, that is, the angle between the two is 90 degrees. The chamber between the two is the liquid inlet chamber, and the liquid inlet pipe 13 is directly facing between the two baffles 42. Wastewater can fall between the two baffles 42 and then fall after passing through the filter screen 31.

[0047] The cleaning unit includes a scraper plate 50 , a push rod 51 and an air injection pipe 60 .

[0048] Two scraper plates 50 are provided, both of which are rotatably matched on the outer wall of the fixed cylinder 30, and the two scraper plates 50 are vertically slidably matched with the side wall of the support column 21. The scraping part of the scraper plate 50 is an arc-shaped structure, and the bottom is in contact with the upper surface of the filter screen 31.

[0049] It is particularly emphasized that, in this embodiment, the two scraper plates 50 and the two baffles 42 are evenly arranged along the circumference of the fixed cylinder 30, that is, the four components are all 90 degrees apart.

[0050] Both scraper plates 50 are provided with a push rod 51, and one end of the push rod 51 away from the scraper plate 50 is located on the upper surface of the closing plate 34. As the filter screen 31 drives the closing plate 34 to rotate, the push rod 51 gradually passes through the lower plane 35, the connecting section 37 and the upper plane 36 of the closing plate 34. Since the height of the push rod 51 remains unchanged, when the push rod 51 is located at the connecting section 37 and the upper plane 36, the closing plate 34 is forced to descend until the push rod 51 is located at the upper plane 36, and the closing plate 34 descends to the lowest position. At this time, the lower plane 35 of the closing plate 34 is flush with the surface of the filter screen 31, and the flush position just corresponds to the scraper plate 50 (such as Figure 4 ). This makes it easier for the scraper plate 50 to scrape the impurities on the filter screen 31 to the outside.

[0051] The jet pipe 60 is connected to the support column 21 by sliding up and down through a spring, and the jet pipe 60 is horizontally arranged along the radial direction of the support column 21. An air supply pipeline communicating with the jet pipe 60 is arranged inside the support column 21, and the spray hole of the jet pipe 60 is arranged vertically upward.

[0052] The upper surface of the air jet 60 abuts against the lower surface of the filter screen 31, so that when the filter screen 31 descends, the air jet 60 can be pushed down synchronously. Thus, the air jet 60 can blow out the impurities blocked in the filter screen 31 in advance, so that the impurities can be scraped out when they reach the scraper plate 50.

[0053] During operation, the outlet of the liquid inlet pipe 13 faces between the two baffles 42, and the wastewater falls into the liquid inlet cavity between the two baffles 42. After being filtered by the filter screen 31, the wastewater falls into the flocculation tank 11 for flocculation treatment. Large particles of impurities such as jujube peel and pulp fragments in the waste liquid will remain on the filter screen 31. When too much impurity accumulates, the filtering speed of the filter screen 31 will decrease, so that the waste liquid accumulates in the part between the two baffles 42. The weight of the filter screen 31 will increase, thereby driving the fixed cylinder 30 and the closing plate 34 to descend synchronously. When the fixed cylinder 30 descends along the support column 21, the driving column 38 starts to rise from the bottom along the inclined section of the driving groove 32, thereby forcing the fixed cylinder 30 to drive the filter screen 31 to rotate. The filter screen 31 rotates clockwise, and the baffle 42 in the clockwise direction conflicts with the filter screen 31. Therefore, when the filter screen 31 rotates, the impurities will gradually accumulate at the bottom of the baffle 42 in the clockwise direction. The closing plate 34 is rotated and descended, and the telescopic rod 22 and the spring at the bottom thereof are gradually compressed, and the rotating wheel 23 can ensure the rotation of the closing plate 34 .

[0054] When the filter screen 31 descends close to the limit position, that is, when the driving column 38 reaches the top of the inclined section of the driving groove 32, the spring travel on the baffle 42 reaches the limit, and as the filter screen 31 gradually descends, the baffles 42 on both sides gradually begin to separate from the filter screen 31, thereby forming a gradually increasing opening between the baffle 42 and the filter screen 31. As a result, the waste liquid in the liquid inlet cavity will gradually flow out through the opening, and the impurities accumulated at the bottom of the baffle 42 in the clockwise direction will be gradually flushed out to the outside.

[0055] It is particularly emphasized that the opening between the baffle 42 and the filter 31 gradually increases slowly. Although the water in the liquid inlet cavity is discharged to the outside, the liquid inlet pipe 13 continues to add waste liquid to the liquid inlet cavity, so the amount of liquid inlet is greater than the amount of discharge. Therefore, the liquid in the liquid inlet cavity is still in an increasing state, so the filter 31 will continue to slowly descend until the drive column 38 reaches the top of the inclined section of the drive groove 32, the filter 31 descends to the limit position, and the opening between the baffle 42 and the filter 31 reaches the maximum state. At this time, the amount of liquid discharged from the liquid inlet cavity is The amount of liquid in the liquid inlet chamber is greater than the amount of liquid added to the liquid inlet pipe 13, so the amount of liquid in the liquid inlet chamber gradually decreases, and the telescopic rod 22 and the spring thereon begin to push the filter screen 31 and the fixed cylinder 30 to rise along the support column 21. At this time, the driving column 38 descends along the vertical section of the driving groove 32. When the driving column 38 reaches the position near the bottom of the vertical section, it will first push the rotating plate 33, and after passing the rotating plate 33, it will enter the bottom of the vertical section. The rotating plate 33 can prevent the driving column 38 from returning upward along the original path, forcing it to continue to enter the next inclined section, and this cycle is repeated.

[0056] As the filter screen 31 rotates continuously clockwise, the impurities on the filter screen 31 will be continuously transferred clockwise until they reach the scraper plate 50. The scraper plate 50 is rotatably matched with the fixed cylinder 30 and vertically slidably matched with the side wall of the support column 21, so when the filter screen 31 is raised or lowered, the scraper plate 50 will be driven to rise or fall at the same time, and the scraper plate 50 will not rotate, and the bottom of the scraper plate 50 always contacts the upper surface of the filter screen 31.

[0057] As the filter 31 drives the closing plate 34 to descend and rotate, the push rod 51 gradually passes through the lower plane 35, the connecting section 37 and the upper plane 36 of the closing plate 34. When the push rod 51 is located at the connecting section 37 and the upper plane 36, the closing plate 34 is forced to descend until the push rod 51 is located at the upper plane 36, and the closing plate 34 descends to the lowest position. At this time, the lower plane 35 of the closing plate 34 is flush with the surface of the filter 31, and the flush position just corresponds to the scraper plate 50, so that when the impurities on the filter 31 reach the scraper plate 50, the stationary scraper plate 50 and the rotating filter 31 will move relative to each other, so that the scraper plate 50 can continuously discharge the impurities to the outside. A platform for collecting impurities is specially provided on the air flotation machine body 10. The upper surface of the jet pipe 60 abuts against the lower surface of the filter 31, so that the jet pipe 60 can blow back the impurities blocked in the filter 31 in advance, so that the impurities can be scraped out when they reach the scraper plate 50.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A device for treating sour jujube wastewater, comprising: The air flotation machine body is characterized in that a solid-liquid separation module is provided on the air flotation machine body, and the solid-liquid separation module includes a support unit, a filtering unit, an isolation unit and a cleaning unit; The support unit includes a base fixed to the air flotation machine body, a support column fixed to the base and vertically arranged along the axial direction thereof, a telescopic rod circumferentially connected to the base through a spring, and a rotating wheel rotating on the telescopic rod; The filter unit comprises a fixed cylinder axially sliding on a support column, a driving groove annularly arranged on the inner wall of the fixed cylinder, a driving column arranged on the support column and located in the driving groove, a filter screen arranged on the fixed cylinder, and a plurality of arc-shaped closing plates vertically slidingly matched with the outer wall of the filter screen, the driving groove having a plurality of first-connected inclined sections and vertical sections, and a rotating plate rotatably mounted near the lower end of the vertical section; adjacent closing plates vertically slide and match, the bottom of the closing plate rotates and matches with the rotating wheel, the upper surface of the closing plate has a lower plane, an upper plane and a connecting section, and the upper plane is higher than the height of the lower plane; The isolation unit includes two baffles vertically slidably connected to the support column through a spring, and the two baffles are arranged along the circumference of the support column, and the baffles abut against the filter screen so that a chamber for adding wastewater is formed on the inner side of the two baffles; the cleaning unit includes an arc-shaped scraper plate vertically sliding on the support column and rotatably connected to the fixed cylinder, and a push rod fixed to the scraper plate, the scraper plate abuts against the filter screen, and the push rod abuts against the upper surface of the closing plate.

2. A sour jujube wastewater treatment device according to claim 1, characterized in that: The base is an annular structure, and the support column is fixedly mounted on the support column through a plurality of support rods arranged circumferentially.

3. A sour jujube wastewater treatment device according to claim 1, characterized in that: The two baffles are arranged perpendicular to each other.

4. A sour jujube wastewater treatment device according to claim 1, characterized in that: A protrusion is arranged on the outer wall of the filter screen, and a vertical slide groove is arranged on the inner side of the closing plate at a position corresponding to the protrusion, and the protrusion is located in the slide groove.

5. A sour jujube wastewater treatment device according to claim 1, characterized in that: The number of the closing plates is 4.

6. A sour jujube wastewater treatment device according to claim 5, characterized in that: Two scraper plates are provided, and the two scraper plates and the two baffles are evenly arranged along the circumference of the support column.

7. The device for treating sour jujube wastewater according to claim 1, characterized in that: The rotating plate is rotated in the driving groove through a torsion spring, and the rotating plate is arranged tilted and flush with the inclined surface of the inclined section.

8. A sour jujube wastewater treatment device according to any one of claims 1 to 7, characterized in that: The support column is connected with an air jet pipe for sliding up and down movement via a spring, and the air jet pipe is horizontally arranged along the radial direction of the support column, the spray hole of the air jet pipe is arranged upward, and the upper surface of the air jet pipe abuts against the lower surface of the filter screen.

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