A reactor for treating petroleum wastewater and its usage method

Abstract

The present invention belongs to the field of wastewater treatment, and provides a reactor for treating petroleum wastewater and a using method thereof. The reactor comprises a shell, a first feed pipe and a second feed pipe are communicated with the shell, a sewage discharge tank is communicated with the bottom of the shell, a partition filter plate is fixedly installed in the middle of the shell, microbial fillers and modified catalyst fillers are arranged on the partition filter plate, the modified catalyst fillers are located above the microbial fillers, a plurality of groups of aeration pipes which are uniformly distributed and located below the partition filter plate are fixedly installed in the shell, and the aeration pipes are connected with an external air supply device. Compared with the prior art, the beneficial effects of the present invention are as follows: when the cleaning plate moves reversely, the limiting block will exert a force on the cleaning plate to make it rotate. When the fixing frame contacts and fixes with the second magnet, at this time, the cleaning plate can cross the limiting block and maintain an inclined state, thereby avoiding the cleaning plate from pushing the newly generated sludge at the bottom of the shell towards the end of the shell.

Description

Technical Field

[0001] The present invention belongs to the field of wastewater treatment, and particularly relates to a reactor for treating petroleum wastewater and a using method thereof. Background Art

[0002] Petroleum wastewater usually contains a large amount of harmful components, especially nitrogen-containing organic matters. These organic matters will not only cause serious pollution to the environment, but also have a toxic effect on the organisms in the water body. Although traditional wastewater treatment methods can remove some nitrogen-containing organic matters, there are problems such as low treatment efficiency and high operating costs.

[0003] In the prior art, wastewater is generally cleaned by a biofilm reactor. When the existing biofilm reactor is in use, it cannot effectively clean the precipitated sludge, thus affecting the treatment efficiency and performance of the biofilm reactor for sewage. For the above technical problems, in the Chinese patent with the patent publication number CN215667310U, when in use, two groups of moving plates are used to push the sludge towards the middle position. When the movement reverses and resets, the newly generated sludge will be pushed by the moving plates towards the direction close to the side wall of the reactor main body, and the newly generated sludge will be squeezed against the side wall of the reactor main body by the moving plates. When cleaning subsequently, this part of the sludge cannot be cleaned, resulting in poor cleaning effect of the sludge. Summary of the Invention

[0004] The purpose of the present invention is to provide a reactor for treating petroleum wastewater and a using method thereof, aiming to solve the technical problem that some newly generated sludge is squeezed against the side wall of the equipment during sludge cleaning in the prior art, resulting in sludge residue.

[0005] The present invention is realized as follows: A reactor for treating petroleum wastewater includes a housing. A first feed pipe and a second feed pipe are connected to the housing. A sewage discharge tank is connected to the bottom of the housing. A partition filter plate is fixedly installed in the middle of the housing. Microbial fillers and modified catalyst fillers are arranged on the partition filter plate. The modified catalyst fillers are located above the microbial fillers. A plurality of groups of evenly distributed air diffuser pipes are fixedly installed in the housing below the partition filter plate. The air diffuser pipes are connected to an external air supply device;

[0006] A plurality of groups of parallel cross bars are fixedly installed inside the housing between the aeration pipe and the bottom side wall of the housing. Two symmetrically distributed moving plates are slidably installed on the cross bars. A servo module for driving the two moving plates to move synchronously and in opposite directions is arranged inside the housing. A cleaning plate is rotatably installed on the moving plate. An installation shaft is fixedly installed on the cleaning plate, and the installation shaft is rotatably connected to the moving plate. A fixing frame is fixedly installed on the installation shaft. A cover is fixedly installed at the position where the moving plate is connected to the installation shaft. A first magnet and a second magnet are fixedly installed inside the cover. When the cleaning plate is in a vertical state, the fixing frame contacts and is fixed to the first magnet, and the cleaning plate is in sliding contact with the bottom surface of the housing. When the cleaning plate is in an inclined state, the fixing frame contacts and is fixed to the second magnet, and there is a gap between the lower end of the cleaning plate and the bottom surface of the housing. A limiting block for pushing the cleaning plate to rotate is arranged inside the housing.

[0007] Further technical solution: A rotating plate is rotatably installed at the top of the housing. The second feed pipe is fixedly installed on the rotating plate and penetrates through the rotating plate. A light-transmitting glass is arranged at the top of the housing around the rotating plate.

[0008] Further technical solution: A spiral blade driven by a rotating power member is rotatably installed inside the sewage discharge tank. One end of the sewage discharge tank is communicated with a sewage discharge pipe with a valve.

[0009] Further technical solution: Four groups of limiting blocks are symmetrically and slidably installed on the side wall of the housing. The limiting blocks are located on the moving track of the cleaning plate. The side surface of the limiting block close to the corresponding cleaning plate is set as an inclined surface structure. An installation chamber covering the limiting block is fixedly installed on the outer side surface of the housing. A first elastic member is fixedly installed inside the installation chamber, and the movable end of the first elastic member is fixedly connected to the end of the limiting block.

[0010] Further technical solution: A clamping groove is opened on the side wall of the housing on the extension line of the moving track of the cleaning plate. A push plate is slidably installed in the clamping groove. There is a gap between the bottom of the push plate and the side wall of the clamping groove. A second elastic member is fixedly installed on the side surface of the push plate away from the cleaning plate, and the end of the second elastic member away from the push plate is fixedly connected to the side wall of the housing. When the second elastic member is in its original length state, the push plate extends out of the clamping groove.

[0011] Further technical solution: A plurality of groups of parallel distributed installation rods are fixedly installed in the clamping groove. The installation rods are slidably connected to the push plate. When the push plate completely enters the clamping groove, its side surface is flush with the inner wall of the housing.

[0012] Further technical solution: A sliding groove is opened at the position where the bottom side wall of the housing is communicated with the sewage discharge tank. A closing plate is slidably installed in the sliding groove. A third magnet is fixedly installed at the end of the closing plate. When the cleaning plate moves, it contacts and pushes the closing plate to move. A magnetic structure is arranged at the position where the cleaning plate contacts the third magnet for adsorbing and fixing to the third magnet.

[0013] The present invention also provides a usage method, which is applied to a reactor for treating petroleum wastewater described above, and comprises the following steps:

[0014] Step S1: Convey the microbial filler into the shell through the first feed pipe, convey the wastewater to be treated into the shell through the first feed pipe until the set liquid level height is reached, and at the same time, introduce air into the aeration pipe through an external air supply device;

[0015] Step S2: After the reaction in the shell proceeds stably, convey the modified catalyst filler into the shell through the second feed pipe;

[0016] Step S3: When there is a large amount of sludge at the bottom of the shell, at this time, the servo module drives the two cleaning plates to move towards the middle through the moving plate. When the cleaning plates move, they push the sludge at the bottom of the shell towards the middle, and the sludge is pushed into the sewage discharge tank. Subsequently, open the valve on the sewage discharge pipe, and drive the spiral blade to rotate through the rotating power component to discharge the sludge from the sewage discharge pipe, and then the cleaning plates reset;

[0017] Step S4: When the cleaning plates move in the reverse direction and contact the limit blocks, the limit blocks will exert a force on the cleaning plates to make them rotate until the fixing frame contacts and fixes with the second magnet. At this time, the cleaning plates can cross the limit blocks and remain in an inclined state. When the upper end of the inclined cleaning plates contacts the side wall of the shell again, the cleaning plates rotate and reset.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. When there is a large amount of sludge at the bottom of the shell, at this time, the servo module drives the two cleaning plates to move towards the middle through the moving plate. When the cleaning plates move, they push the sludge at the bottom of the shell towards the middle and fall into the sewage discharge tank. Subsequently, the servo module drives the two moving plates to reset. When the cleaning plates move in the reverse direction and contact the limit blocks, the cleaning plates cannot push the limit blocks to move. When the moving plates continue to move, the limit blocks will exert a force on the cleaning plates to make them rotate, thereby causing the fixing frame to disengage from the fixation with the first magnet. At this time, the cleaning plates can rotate freely. When the position where the lower ends of the cleaning plates contact the limit blocks is the upper surface of the limit blocks, the fixing frame contacts and fixes with the second magnet. At this time, the cleaning plates can cross the limit blocks and remain in an inclined state, thus avoiding the cleaning plates from pushing the newly generated sludge at the bottom of the shell towards the ends of the shell, preventing the sludge from remaining between the cleaning plates and the side wall of the shell, and improving the cleaning effect on the sludge.

[0020] 2. After the upper end of the cleaning plate in the inclined state contacts the side wall of the housing again, the moving plate continues to move. Under the restriction of the side wall of the housing, the fixing frame can be separated from the second magnet. The cleaning plate rotates in the reverse direction again until it becomes vertical and completely fits the side wall of the housing. When the cleaning plate rotates and resets in contact with the side wall of the housing, the wastewater in the front side of the rotation direction is squeezed. Then, the wastewater will flow from the lower side of the cleaning plate away from the side wall of the housing, so as to push away the newly generated silt near the end of the housing, enabling the cleaning plate to fit the side wall of the housing after resetting, further avoiding the residue of silt between the cleaning plate and the side wall of the housing, and improving the cleaning effect of the silt.

[0021] 3. When the cleaning plate moves away from the push plate, under the action of the second elastic member, the push plate leaves the card slot. At this time, the wastewater can enter the card slot. Then, when the cleaning plate resets, it will push the push plate into the card slot. At this time, the push plate will squeeze out the wastewater in the card slot. The wastewater quickly flows out through the gap between the lower side of the push plate and the card slot, further pushing the silt at the position of the card slot at the bottom of the housing to move away from the card slot, further improving the cleanliness of the position where the cleaning plate is located, reducing the residue of silt, and further improving the cleaning effect of the silt.

[0022] 4. When the cleaning plate moves to the position in contact with the third magnet, the silt is pushed into the sewage discharge box. At this time, the cleaning plate continues to move and drives the closing plate to move through the third magnet. When the two closing plates contact, the movement stops. At this time, the connection between the sewage discharge box and the housing is blocked by the closing plate. Then, the silt is discharged through the spiral blade. By blocking with the closing plate, it is avoided that the wastewater flows back when the spiral blade rotates and drives the silt into the housing, enabling the silt to be quickly discharged, further improving the cleaning effect of the silt. After the silt cleaning is completed, the cleaning plate moves in the reverse direction, and drives the closing plate to reset by the adsorption between the third magnet and the cleaning plate. After the closing plate resets, the cleaning plate is separated from the closing plate. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is the front view of the present invention.

[0025] Figure 3 It is a schematic diagram of the internal structure of the housing in the present invention.

[0026] Figure 4 It is a schematic cross-sectional structure diagram of the cover in the present invention.

[0027] Figure 5 It is Figure 2 The enlarged schematic diagram of area A1 in

[0028] Figure 6 It is Figure 2 The enlarged schematic diagram of area A2 in

[0029] Figure 7 is Figure 4 An enlarged schematic view of area A3 in it.

[0030] Figure 8 It is a schematic cross-sectional structure diagram of the installation chamber in the present invention.

[0031] In the drawings: 1. Shell; 2. First feed pipe; 3. Rotating plate; 4. Second feed pipe; 5. Partition filter plate; 6. Aeration pipe; 7. Cross bar; 8. Moving plate; 9. Servo module; 10. Cleaning plate; 11. Installation shaft; 12. Fixed frame; 13. Cover; 14. First magnet; 15. Second magnet; 16. Sewage tank; 17. Spiral blade; 18. Rotating power component; 19. Installation chamber; 20. First elastic member; 21. Limit block; 22. Card slot; 23. Push plate; 24. Installation rod; 25. Second elastic member; 26. Slide groove; 27. Sealing plate; 28. Third magnet; 29. Microbial filler; 30. Modified catalyst filler. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0034] As Figures 1-8 shown, a reactor for treating petroleum wastewater provided by the present invention includes a shell 1. A first feed pipe 2 and a second feed pipe 4 are communicated with the shell 1. A rotating plate 3 is rotatably installed on the top of the shell 1. The second feed pipe 4 is fixedly installed on the rotating plate 3 and penetrates through the rotating plate 3. A light-transmitting glass is arranged around the rotating plate 3 on the top of the shell 1. A sewage tank 16 is communicated with the bottom of the shell 1. A spiral blade 17 driven by a rotating power component 18 is rotatably installed in the sewage tank 16. One end of the sewage tank 16 is communicated with a sewage pipe with a valve. A partition filter plate 5 is fixedly installed in the middle of the shell 1. Microbial filler 29 and modified catalyst filler 30 are arranged on the partition filter plate 5. The modified catalyst filler 30 is located above the microbial filler 29. A plurality of groups of aeration pipes 6 evenly distributed below the partition filter plate 5 are fixedly installed in the shell 1. The aeration pipes 6 are connected to an external air supply device;

[0035] Inside the housing 1, multiple groups of parallel crossbars 7 are fixedly installed between the aeration pipe 6 and the bottom side wall of the housing 1. Two symmetrically distributed moving plates 8 are slidably installed on the crossbars 7. A servo module 9 for driving the two moving plates 8 to move synchronously and in opposite directions is arranged inside the housing 1. A cleaning plate 10 is rotatably installed on the moving plate 8. An installation shaft 11 is fixedly installed on the cleaning plate 10, and the installation shaft 11 is rotatably connected to the moving plate 8. A fixing frame 12 is fixedly installed on the installation shaft 11. A cover 13 is fixedly installed at the position where the moving plate 8 is connected to the installation shaft 11. A first magnet 14 and a second magnet 15 are fixedly installed inside the cover 13. When the cleaning plate 10 is in a vertical state, the fixing frame 12 contacts and is fixed to the first magnet 14, and the cleaning plate 10 is in sliding contact with the bottom surface of the housing 1. When the cleaning plate 10 is in an inclined state, the fixing frame 12 contacts and is fixed to the second magnet 15, and there is a gap between the lower end of the cleaning plate 10 and the bottom surface of the housing 1. A limiting block 21 for pushing the cleaning plate 10 to rotate is arranged inside the housing 1. There are four groups of limiting blocks 21, which are symmetrically and slidably installed on the side wall of the housing 1. The limiting blocks 21 are located on the moving track of the cleaning plate 10. The side surface of the limiting block 21 close to the corresponding cleaning plate 10 is arranged as an inclined surface structure. An installation chamber 19 covering the limiting block 21 is fixedly installed on the outer side surface of the housing 1. A first elastic member 20 is fixedly installed inside the installation chamber 19, and the movable end of the first elastic member 20 is fixedly connected to the end of the limiting block 21.

[0036] In actual application of this embodiment, the microbial filler 29 is transported into the housing 1 through the first feed pipe 2, and the wastewater to be treated is transported into the housing 1 through the first feed pipe 2 until it reaches the set liquid level. At this time, the microbial filler 29 floats in the wastewater. At the same time, air is introduced into the aeration pipe 6 through an external air supply device, and upward moving bubbles are formed in the wastewater, enabling the wastewater to fully contact the microbial filler 29. The wastewater is treated by the microbial filler 29. The sludge adsorbed on the microbial filler 29 will fall downward to the bottom of the housing 1 and the sewage tank 16. The microbial filler 29 is prevented from moving downward by the partition filter plate 5. After the reaction in the housing 1 proceeds stably, the modified catalyst filler 30 is transported into the housing 1 through the second feed pipe 4. At the same time, the rotating plate 3 is rotated to distribute the modified catalyst filler 30 at different positions, making the distribution of the modified catalyst filler 30 more uniform. The modified catalyst filler 30 is located in the middle and upper layers, and the microbial filler 29 is located in the middle and lower layers. The complex and difficult-to-be-directly-degraded toxic nitrogen-containing organic compounds are degraded into carbon dioxide, water, and nitrogen-containing organic compounds that are easily degraded by microorganisms by the modified catalyst filler 30. Subsequently, in the middle and lower layers, the nitrogen-containing organic compounds are further treated by the microbial filler 29 to be completely degraded. Through the synergistic effect of the photocatalyst and microorganisms, the removal efficiency of nitrogen-containing organic compounds in the petroleum wastewater is improved;

[0037] In the initial state, the cleaning plate 10 is in a vertical state and contacts the side wall of the shell 1. When there is a lot of sludge at the bottom of the shell 1, the servo module 9 drives the two groups of cleaning plates 10 to move toward the middle through the moving plate 8. When the cleaning plate 10 moves, it pushes the sludge at the bottom of the shell 1 to move toward the middle, and finally the sludge falls into the sewage tank 16. During the movement of the cleaning plate 10 toward the middle, it will contact the inclined surface of the limit block 21. At this time, the cleaning plate 10 will push the limit block 21 to move and compress the first elastic member 20 through the inclined surface, so that the limit block 21 no longer extends out of the side wall of the shell 1, and the cleaning plate 10 can move normally. When the cleaning plate 10 moves to the position where the shell 1 is connected to the sewage tank 16, the sludge is pushed into the sewage tank 16. Subsequently, the valve on the sewage pipe is opened, and the spiral blade 17 is driven to rotate by the rotating power member 18 to discharge the sludge from the sewage pipe.

[0038] Afterwards, the servo module 9 drives the two groups of movable plates 8 to reset. When the cleaning plate 10 moves in the opposite direction and contacts the limit block 21, the cleaning plate 10 cannot push the limit block 21 to move. When the movable plate 8 continues to move, the limit block 21 will apply a force to the cleaning plate 10 to make it rotate, thereby causing the fixing frame 12 to be separated from the fixation with the first magnet 14. At this time, the cleaning plate 10 can rotate freely. When the position where the lower end of the cleaning plate 10 contacts the limit block 21 is the upper surface of the limit block 21, the fixing frame 12 contacts and is fixed with the second magnet 15. At this time, the cleaning plate 10 can pass the limit block 21 and maintain an inclined state, thereby preventing the cleaning plate 10 from pushing the newly generated sludge at the bottom of the shell 1 to move toward the end of the shell 1, and preventing the sludge from remaining between the cleaning plate 10 and the shell The cleaning plate 10 is moved between the side walls of the shell 1 to improve the cleaning effect of the sludge. When the inclined upper end of the cleaning plate 10 contacts the side walls of the shell 1 again, the movable plate 8 continues to move to disengage the fixing frame 12 from the second magnet 15 under the restriction of the side walls of the shell 1, and the cleaning plate 10 rotates in the opposite direction again until it becomes vertical and completely fits with the side walls of the shell 1. When the cleaning plate 10 contacts the side walls of the shell 1 and rotates to reset, the wastewater in the front side of the rotation direction is squeezed, and then the wastewater flows from the lower side of the cleaning plate 10 to the direction away from the side walls of the shell 1, thereby pushing away the newly generated sludge near the end position of the shell 1, so that the cleaning plate 10 can fit with the side walls of the shell 1 after being reset, further avoiding residual sludge between the cleaning plate 10 and the side walls of the shell 1, and improving the cleaning effect of the sludge.

[0039] In an example of this embodiment, the rotating power part 18 is a motor, and of course it can also be other parts that can output rotational power such as a hydraulic motor. The motor drives the spiral blade 17 to rotate to achieve the discharge of sludge. The first elastic part 20 is a first spring, and of course it can also be other elastic parts such as an elastic ball. The first spring applies a reset thrust to the limit block 21.

[0040] like Figure 2 , Figure 5As shown in the figure, a reactor for treating petroleum wastewater provided by the present invention is shown. On the side wall of the housing 1 located on the extension line of the moving track of the cleaning plate 10, a clamping groove 22 is provided. A push plate 23 is slidably installed in the clamping groove 22. There is a gap between the bottom of the push plate 23 and the side wall of the clamping groove 22. On the side of the push plate 23 away from the cleaning plate 10, a second elastic member 25 is fixedly installed. One end of the second elastic member 25 away from the push plate 23 is fixedly connected to the side wall of the housing 1. When the second elastic member 25 is in its original length state, the push plate 23 extends out of the clamping groove 22.

[0041] Specifically, a plurality of groups of parallel distribution mounting rods 24 are fixedly installed in the clamping groove 22. The mounting rods 24 are slidably connected with the push plate 23. When the push plate 23 completely enters the clamping groove 22, its side surface is flush with the inner wall of the housing 1.

[0042] In the actual application of this embodiment, in the initial state, the push plate 23 is completely located in the clamping groove 22 under the extrusion of the cleaning plate 10, and the second elastic member 25 is in a compressed state. When the cleaning plate 10 moves away from the push plate 23, under the action of the second elastic member 25, the push plate 23 moves out of the clamping groove 22. At this time, the wastewater can enter the clamping groove 22. Then, when the cleaning plate 10 resets, it will push the push plate 23 into the clamping groove 22. At this time, the push plate 23 will squeeze out the wastewater in the clamping groove 22, and the wastewater quickly flows out through the gap between the lower part of the push plate 23 and the clamping groove 22, further pushing the sludge at the position of the bottom of the housing 1 where the clamping groove 22 is located to move away from the clamping groove 22, further improving the cleanliness of the position where the cleaning plate 10 is located, reducing the residue of the sludge, and further improving the cleaning effect of the sludge.

[0043] In an example of the present invention, the second elastic member 25 is a second spring. Of course, it can also be other elastic components such as elastic balls, and the second spring applies a thrust to the push plate 23.

[0044] As Figure 2 、 Figure 6 As shown in the figure, a reactor for treating petroleum wastewater provided by the present invention is shown. At the position where the bottom side wall of the housing 1 is communicated with the sewage discharge box 16, a sliding groove 26 is provided. A closing plate 27 is slidably installed in the sliding groove 26. A third magnet 28 is fixedly installed at the end of the closing plate 27. When the cleaning plate 10 moves, it contacts the third magnet 28 and pushes the closing plate 27 to move. A magnetic structure is provided at the position where the cleaning plate 10 contacts the third magnet 28 for adsorbing and fixing with the third magnet 28.

[0045] In actual application of this embodiment, when the cleaning plate 10 moves to the position in contact with the third magnet 28, the sludge is pushed into the sewage discharge tank 16. At this time, the cleaning plate 10 continues to move and drives the closing plate 27 to move through the third magnet 28. When the two groups of closing plates 27 come into contact, the movement stops. At this time, the connection between the sewage discharge tank 16 and the housing 1 is blocked by the closing plate 27. Then, the sludge is discharged through the spiral blade 17. The blocking by the closing plate 27 prevents the wastewater from flowing back when the spiral blade 17 rotates and drives the sludge into the housing 1, enabling the sludge to be quickly discharged, further improving the cleaning effect of the sludge. After the sludge cleaning is completed, the cleaning plate 10 moves in the reverse direction, and the closing plate 27 is driven to reset by the adsorption of the third magnet 28 to the cleaning plate 10. After the closing plate 27 is reset, the cleaning plate 10 is separated from the closing plate 27.

[0046] As Figures 1-8 shown, a usage method provided by the present invention is applied to the reactor for treating petroleum wastewater described above, and it includes the following steps:

[0047] Step S1: The microbial filler 29 is conveyed into the housing 1 through the first feed pipe 2, and the wastewater to be treated is conveyed into the housing 1 through the first feed pipe 2 until the set liquid level height is reached. At the same time, air is introduced into the aeration pipe 6 through an external air supply device.

[0048] Step S2: After the reaction in the housing 1 proceeds stably, the modified catalyst filler 30 is conveyed into the housing 1 through the second feed pipe 4.

[0049] Step S3: When there is a large amount of sludge at the bottom inside the housing 1, at this time, the servo module 9 drives the two cleaning plates 10 to move towards the middle through the moving plate 8. When the cleaning plates 10 move, they push the sludge at the bottom of the housing 1 towards the middle, and the sludge is pushed into the sewage discharge tank 16. Subsequently, the valve on the sewage discharge pipe is opened, and the spiral blade 17 is driven to rotate by the rotary power member 18, and the sludge can be discharged from the sewage discharge pipe. Then, the cleaning plates 10 are reset.

[0050] Step S4: When the cleaning plate 10 moves in the reverse direction and contacts the limiting block 21, the limiting block 21 will exert a force on the cleaning plate 10 to make it rotate until the fixing frame 12 contacts and fixes with the second magnet 15. At this time, the cleaning plate 10 can cross over the limiting block 21 and maintain an inclined state. When the upper end of the inclined cleaning plate 10 contacts the side wall of the housing 1 again, the cleaning plate 10 rotates and resets.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0052] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reactor for treating petroleum wastewater, comprising a shell (1), wherein a first feed pipe (2) and a second feed pipe (4) are connected to the shell (1), characterized in that: The bottom of the shell (1) is connected to a sewage tank (16), a partition filter plate (5) is fixedly installed in the middle of the shell (1), a microbial filler (29) and a modified catalyst filler (30) are arranged on the partition filter plate (5), and the modified catalyst filler (30) is located above the microbial filler (29), and a plurality of groups of aeration pipes (6) evenly distributed and located below the partition filter plate (5) are fixedly installed in the shell (1), and the aeration pipes (6) are connected to an external air supply device; The shell (1) is fixedly installed with a plurality of parallel cross bars (7) located between the aeration pipe (6) and the bottom side wall of the shell (1); two groups of symmetrically distributed moving plates (8) are slidably installed on the cross bars (7); a servo module (9) is provided in the shell (1) for driving the two groups of moving plates (8) to move synchronously in opposite directions; a cleaning plate (10) is rotatably installed on the moving plate (8); a mounting shaft (11) is fixedly installed on the cleaning plate (10); the mounting shaft (11) is rotatably connected to the moving plate (8); a fixing frame (12) is fixedly installed on the mounting shaft (11); and the moving plate (8) is connected to the mounting shaft ( A cover (13) is fixedly installed at a position where the cleaning plate (10) is connected to the housing (11), and a first magnet (14) and a second magnet (15) are fixedly installed in the cover (13); when the cleaning plate (10) is in a vertical state, the fixing frame (12) contacts and fixes the first magnet (14), and the cleaning plate (10) is in sliding contact with the bottom surface of the housing (1); when the cleaning plate (10) is in an inclined state, the fixing frame (12) contacts and fixes the second magnet (15), and a gap exists between the lower end of the cleaning plate (10) and the bottom surface of the housing (1); a limit block (21) is provided in the housing (1) for pushing the cleaning plate (10) to rotate.

2. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A rotating plate (3) is rotatably mounted on the top of the shell (1); the second feed pipe (4) is fixedly mounted on the rotating plate (3) and penetrates the rotating plate (3); and light-transmitting glass is arranged around the rotating plate (3) on the top of the shell (1).

3. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A spiral blade (17) driven by a rotating power member (18) is rotatably installed in the sewage box (16), and one end of the sewage box (16) is connected to a sewage pipe with a valve.

4. A reactor for treating petroleum wastewater according to claim 1, characterized in that: The limit blocks (21) are provided in four groups and are symmetrically slidably mounted on the side wall of the housing (1). The limit blocks (21) are located on the moving track of the cleaning plate (10). The side of the limit blocks (21) close to the corresponding cleaning plate (10) is arranged as an inclined structure. An installation chamber (19) covering the limit blocks (21) is fixedly mounted on the outer side of the housing (1). A first elastic member (20) is fixedly mounted in the installation chamber (19). The movable end of the first elastic member (20) is fixedly connected to the end of the limit block (21).

5. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A slot (22) is provided in the side wall of the housing (1) on the extension line of the moving track of the cleaning plate (10), a push plate (23) is slidably mounted in the slot (22), a gap is provided between the bottom of the push plate (23) and the side wall of the slot (22), a second elastic member (25) is fixedly mounted on the side of the push plate (23) away from the cleaning plate (10), one end of the second elastic member (25) away from the push plate (23) is fixedly connected to the side wall of the housing (1), and when the second elastic member (25) is in the original length state, the push plate (23) extends out of the slot (22).

6. A reactor for treating petroleum wastewater according to claim 5, characterized in that: A plurality of sets of parallelly distributed mounting rods (24) are fixedly mounted in the slot (22); the mounting rods (24) are slidably connected to the push plate (23); when the push plate (23) is completely inserted into the slot (22), its side surface is flush with the inner wall of the housing (1).

7. A reactor for treating petroleum wastewater according to claim 1, characterized in that: A slide groove (26) is provided at a position where the bottom side wall of the shell (1) is connected to the sewage box (16), a closing plate (27) is slidably installed in the slide groove (26), and a third magnet (28) is fixedly installed at the end of the closing plate (27). When the cleaning plate (10) moves, it contacts the third magnet (28) and pushes the closing plate (27) to move. A magnetic structure is provided at the position where the cleaning plate (10) contacts the third magnet (28) for being adsorbed and fixed to the third magnet (28).

8. A method of use, characterized in that: A reactor for treating petroleum wastewater as claimed in any one of claims 1 to 7, comprising the following steps: Step S1: transporting the microbial filler (29) into the housing (1) through the first feed pipe (2), transporting the wastewater to be treated into the housing (1) through the first feed pipe (2) until the liquid level reaches a set height, and at the same time, introducing air into the aeration pipe (6) through an external air supply device; Step S2: after the reaction in the shell (1) is stably carried out, the modified catalyst filler (30) is transported into the shell (1) through the second feed pipe (4); Step S3: When there is a lot of sludge at the bottom of the shell (1), the servo module (9) drives the two sets of cleaning plates (10) to move toward the middle through the moving plate (8). When the cleaning plates (10) move, the sludge at the bottom of the shell (1) is pushed toward the middle, and the sludge is pushed into the sewage box (16). Subsequently, the valve on the sewage pipe is opened, and the spiral blade (17) is driven to rotate by the rotating power part (18) to discharge the sludge from the sewage pipe. Then, the cleaning plates (10) are reset. Step S4: When the cleaning plate (10) moves in the reverse direction and contacts the limit block (21), the limit block (21) applies a force to the cleaning plate (10) to rotate it until the fixing frame (12) contacts and fixes the second magnet (15). At this time, the cleaning plate (10) can pass over the limit block (21) and maintain an inclined state. When the inclined upper end of the cleaning plate (10) contacts the side wall of the shell (1) again, the cleaning plate (10) rotates and resets.

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