A petrochemical wastewater reuse device

Abstract

The present invention provides a petrochemical wastewater reuse device, which relates to the technical field of petrochemical wastewater treatment. The device comprises an oil-water separator, wherein one end of the oil-water separator is provided with a coagulation and sedimentation mechanism, the end of the coagulation and sedimentation mechanism away from the oil-water separator is provided with a biological pool, the end of the biological pool away from the coagulation and sedimentation mechanism is provided with an ozone decomposition mechanism, the end of the ozone decomposition mechanism away from the biological pool is provided with an ultrafiltration device, the end of the ultrafiltration device away from the ozone decomposition mechanism is provided with a reverse osmosis machine, one end of the coagulation and sedimentation mechanism and the ozone decomposition mechanism are respectively provided with a first conveyor belt and a second conveyor belt, and the end of the ozone decomposition mechanism away from the second conveyor belt is provided with a feeding cover, which can automatically and quickly clean the sediment, thereby accelerating the petrochemical wastewater reuse treatment efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of petrochemical wastewater treatment, in particular to a petrochemical wastewater reuse device. Background Art

[0002] Petrochemical wastewater refers to wastewater discharged from petrochemical plants. The amount of wastewater is large, and in addition to production wastewater, there is also cooling water and other water. The composition of the wastewater is complex. Due to the large number of petrochemical products, the reaction process and unit operations are complex, and the properties of the wastewater are complex and changeable. The wastewater contains high levels of organic matter, especially hydrocarbons and their derivatives, and contains a variety of heavy metals. In order to save water resources, it is often necessary to use petrochemical wastewater reuse equipment to reuse petrochemical wastewater.

[0003] For example, the Chinese patent publication, "Petrochemical Wastewater Treatment Device," with publication number CN218810903U, describes a device that can better handle water quality fluctuations and shock loads, ensuring a stable nitrification reaction. The device comprises a sequentially connected oil removal mechanism, an anaerobic hydrolysis tank, a MABR reactor, an MBR reactor, an ozone oxidation tank, a BAF tank, and a sedimentation tank.

[0004] However, in the above technical solution, when petrochemical wastewater is reused, it is often necessary to precipitate the petrochemical wastewater. The sediment in the petrochemical wastewater will accumulate in the device. Excessive accumulation of sediment will reduce the treatment efficiency of the petrochemical wastewater. Therefore, the device needs to be cleaned regularly. At present, each time the sediment in the petrochemical wastewater reuse device is cleaned, a lot of time is consumed, thereby reducing the reuse treatment efficiency of the petrochemical wastewater. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a petrochemical wastewater reuse device, which solves the problem that when petrochemical wastewater is reused, it is often necessary to precipitate the petrochemical wastewater. The sediment in the petrochemical wastewater will accumulate in the device. Excessive accumulation of sediment will reduce the treatment efficiency of the petrochemical wastewater. Therefore, the device needs to be cleaned regularly. At present, each time the sediment in the petrochemical wastewater reuse device is cleaned, a lot of time is consumed, thereby reducing the reuse treatment efficiency of the petrochemical wastewater.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a petrochemical wastewater reuse device, comprising an oil-water separator, a coagulation and sedimentation mechanism is provided at one end of the oil-water separator, a biological pool is provided at the end of the coagulation and sedimentation mechanism away from the oil-water separator, an ozone decomposition mechanism is provided at the end of the biological pool away from the coagulation and sedimentation mechanism, an ultrafiltration device is provided at the end of the ozone decomposition mechanism away from the biological pool, a reverse osmosis machine is provided at the end of the ultrafiltration device away from the ozone decomposition mechanism, a first conveyor belt and a second conveyor belt are provided at one end of the coagulation and sedimentation mechanism and the ozone decomposition mechanism respectively, and a feeding cover is provided at the end of the ozone decomposition mechanism away from the second conveyor belt.

[0007] Preferably, the first conveyor belt and the second conveyor belt are located directly below the coagulation and sedimentation mechanism and the ozone decomposition mechanism respectively.

[0008] Preferably, the coagulation and sedimentation mechanism includes a coagulation and sedimentation mechanism main body, a groove is provided at the end of the coagulation and sedimentation mechanism main body away from the first conveyor belt, a guide trough is provided at the end of the coagulation and sedimentation mechanism main body away from the groove, a plurality of movable baffles are provided between the groove and the guide trough, a plurality of cleaning water holes are provided at the end of the groove close to the movable baffle, a sewage outlet is provided between the cleaning water hole and the movable baffle, and a sewage inlet is provided at the end of the cleaning water hole away from the movable baffle.

[0009] Preferably, a motor is provided at one end of the coagulation and sedimentation mechanism body close to the movable baffle, and transmission chains are respectively provided at both ends of the movable baffle close to the motor, and a number of slide grooves are provided between the two transmission chains. A movable block is provided at one end of the slide groove close to the movable baffle, and a number of guide slide grooves are provided at one end of the slide groove away from the movable baffle. A guide slide column is provided in the guide slide groove, and a number of hydraulic rods are provided between the two guide slide columns. A number of sealing layers are provided on the inner wall of one end of the slide groove close to the movable baffle.

[0010] Preferably, the groove and the guide trough are communicated with each other, the sewage outlet is fixedly connected to the biological pool, the sewage inlet is fixedly connected to the oil-water separator, the end of the guide slide column close to the movable baffle is fixedly connected to the movable block, and the hydraulic rod is fixedly connected to the movable block at one end close to the movable baffle.

[0011] Preferably, the movable baffle includes a baffle body, a fixed connection groove is provided at one end of the baffle body close to and away from the movable baffle block, a fixed connection block is provided at one end of the baffle body away from the fixed connection groove, and transmission columns are respectively provided at both ends of the baffle body close to and away from the motor, and a sealing rotating plate is provided at one end of the transmission column close to the baffle body.

[0012] Preferably, a sprocket is provided at the end of the transmission column away from the sealing rotating plate, a first limit block is provided at the end of the transmission column close to the sealing rotating plate, a movable limit block is provided at the end of the first limit block close to the guide groove, a telescopic rod is provided at the end of the movable limit block away from the transmission column, and a second limit block is provided at the end of the transmission column close to the first limit block.

[0013] Preferably, the different sprockets are connected to each other via a transmission chain, the motor is fixedly connected to any sprocket, the first limit block is fixedly connected to the main body of the coagulation and sedimentation mechanism, the second limit block is fixedly connected to the transmission column, and the second limit block is semicircular.

[0014] Preferably, the structure of the coagulation and sedimentation mechanism is the same as that of the ozone decomposition mechanism.

[0015] A petrochemical wastewater reuse process, the process flow is as follows:

[0016] Step 1: Send petrochemical wastewater into the oil-water separator.

[0017] Step 2: Send the petrochemical wastewater after oil-water separation into the coagulation and sedimentation mechanism, then add pH adjuster into the coagulation and sedimentation mechanism to adjust the pH value of the petrochemical wastewater in the coagulation and sedimentation mechanism, and let it settle for a period of time.

[0018] Step 3: Send the petrochemical wastewater that has been precipitated into the biological pool to remove organic matter in the petrochemical wastewater, and at the same time start the coagulation and sedimentation mechanism to clean the sediment in the coagulation and sedimentation mechanism.

[0019] Step 4: Send the petrochemical wastewater in the biological pool into the ozone decomposition mechanism, and then use the feeding cover to evenly send the activated carbon into the petrochemical wastewater inside the ozone decomposition mechanism to remove and adsorb other trace substances.

[0020] Step 5: Send the petrochemical wastewater in the ozone decomposition mechanism into the ultrafiltration equipment, and start the ozone decomposition mechanism to clean the activated carbon in the ozone decomposition mechanism, and then send it into the reverse osmosis machine through the ultrafiltration equipment, and use the ultrafiltration equipment and reverse osmosis machine to remove tiny suspended matter, colloids, bacteria, etc. in the petrochemical wastewater.

[0021] Step 6: Send the petrochemical wastewater treated in the reverse osmosis machine to designated equipment for reuse.

[0022] The present invention provides a petrochemical wastewater reuse device. It has the following beneficial effects:

[0023] The present invention first connects the oil-water separator with the petrochemical sewage outlet, then feeds the petrochemical sewage into the oil-water separator, uses the oil-water separator to separate oil, float, etc. on the petrochemical sewage, and then feeds the petrochemical sewage after oil-water separation into a coagulation and sedimentation mechanism, then puts a pH adjuster into the coagulation and sedimentation mechanism to adjust the pH value of the petrochemical sewage in the coagulation and sedimentation mechanism, and then lets it settle for a period of time, then feeds the petrochemical sewage after the sedimentation into a biological pool to remove organic matter in the petrochemical sewage, and at the same time starts the coagulation and sedimentation mechanism to automatically let the sediment in the coagulation and sedimentation mechanism fall on the first conveyor belt, and uses the first conveyor belt to transport the sediment to a designated location, and then feeds the petrochemical sewage in the biological pool into a biological pool. The sewage is sent to the ozone decomposition mechanism, and the activated carbon is evenly sent into the petrochemical sewage inside the ozone decomposition mechanism by using the feeding cover, and the adsorption effect of the activated carbon is combined with the oxidative decomposition to improve the reuse treatment efficiency of the petrochemical sewage. The petrochemical sewage in the ozone decomposition mechanism is then sent to the ultrafiltration equipment, and the ozone decomposition mechanism is started to clean the activated carbon in the ozone decomposition mechanism. The activated carbon is then transported to a designated location by a second conveyor belt, and the petrochemical sewage in the ultrafiltration equipment is sent to the reverse osmosis machine. The ultrafiltration equipment and reverse osmosis machine are used to remove tiny suspended matter, colloids, bacteria, etc. in the petrochemical sewage to complete the reuse of the petrochemical sewage. The sediment can be automatically cleaned quickly, thereby accelerating the reuse treatment efficiency of the petrochemical sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the coagulation and sedimentation mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of a local enlarged structure;

[0028] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the coagulation and sedimentation mechanism of the present invention when viewed from above;

[0029] Figure 6 Schematic diagram of the structure of the movable baffle in the present invention;

[0030] Figure 7 It is a side structural schematic diagram of the movable baffle in the present invention.

[0031] Among them, 1. oil-water separator; 2. coagulation and sedimentation mechanism; 201. coagulation and sedimentation mechanism body; 202. groove; 203. guide drop groove; 204. movable baffle; 20401. baffle body; 20402. fixed connection groove; 20403. fixed connection block; 20404. transmission column; 20405. sealing rotating plate; 20406. sprocket; 20407. first limit block; 20408. movable limit block; 20409. telescopic rod; 20 410. Second limit block; 205. Cleaning water outlet; 206. Sewage outlet; 207. Sewage inlet; 208. Motor; 209. Transmission chain; 2010. Chute; 2011. Movable block; 2012. Guide chute; 2013. Guide slide column; 2014. Hydraulic rod; 2015. Sealing layer; 3. Biological pool; 4. Ozone decomposition mechanism; 5. Ultrafiltration equipment; 6. Reverse osmosis machine; 7. First conveyor belt; 8. Second conveyor belt; 9. Feed cover. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example:

[0034] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a petrochemical wastewater reuse device, including an oil-water separator 1, a coagulation and sedimentation mechanism 2 is provided at one end of the oil-water separator 1, a biological pool 3 is provided at the end of the coagulation and sedimentation mechanism 2 away from the oil-water separator 1, an ozone decomposition mechanism 4 is provided at the end of the biological pool 3 away from the coagulation and sedimentation mechanism 2, an ultrafiltration device 5 is provided at the end of the ozone decomposition mechanism 4 away from the biological pool 3, a reverse osmosis machine 6 is provided at the end of the ultrafiltration device 5 away from the ozone decomposition mechanism 4, a first conveyor belt 7 and a second conveyor belt 8 are provided at one end of the coagulation and sedimentation mechanism 2 and the ozone decomposition mechanism 4 respectively, and a feeding cover 9 is provided at the end of the ozone decomposition mechanism 4 away from the second conveyor belt 8.

[0035] like Figures 3 to 5As shown, the coagulation and sedimentation mechanism 2 includes a coagulation and sedimentation mechanism main body 201, a groove 202 is provided at one end of the coagulation and sedimentation mechanism main body 201 away from the first conveyor belt 7, a guide drop groove 203 is provided at one end of the coagulation and sedimentation mechanism main body 201 away from the groove 202, a plurality of movable baffles 204 are provided between the groove 202 and the guide drop groove 203, a plurality of cleaning water holes 205 are provided at one end of the groove 202 close to the movable baffle 204, a sewage outlet 206 is provided between the cleaning water holes 205 and the movable baffle 204, and a sewage inlet 207 is provided at one end of the cleaning water holes 205 away from the movable baffle 204;

[0036] A motor 208 is provided at one end of the coagulation and sedimentation mechanism body 201 close to the movable baffle 204, and a transmission chain 209 is provided at both ends of the movable baffle 204 close to the motor 208, and a plurality of slide grooves 2010 are provided between the two transmission chains 209. A movable block 2011 is provided at one end of the slide groove 2010 close to the movable baffle 204, and a plurality of guide slide grooves 2012 are provided at one end of the slide groove 2010 away from the movable baffle 204. A guide slide column 2013 is provided in the guide slide groove 2012, and a plurality of hydraulic rods 2014 are provided between the two guide slide columns 2013. A plurality of sealing layers 2015 are provided on the inner wall of one end of the slide groove 2010 close to the movable baffle 204.

[0037] By the above technical solution, when the sediment in the groove 202 needs to be cleaned, the hydraulic rod 2014 is first started, and the hydraulic rod 2014 is used to move the movable block 2011 in the direction close to the guide groove 2012, releasing the fixing of the movable block 2011 on the movable baffle 204, and then the motor 208 is started, and the motor 208 drives the movable baffle 204 to rotate, and the movable baffle 204 then uses the transmission chain 209 to drive all the movable baffles 204 to rotate, so that all the movable baffles 204 rotate ninety degrees, and the sediment in the groove 202 automatically falls into the guide groove. 203, and then falls into the surface of the first conveyor belt 7 through the guide trough 203, and the sediment is transported to the designated position through the first conveyor belt 7, and then the cleaning water outlet 205 is started, and the cleaning water outlet 205 flushes the water flow to the movable baffle 204, flushes the movable baffle 204, and flushes the remaining sediment on the movable baffle 204 to the first conveyor belt 7. After the flushing is completed, the motor 208 is started again to return the movable baffle 204 to its original position, and then the hydraulic rod 2014 is started to move the movable block 2011 in the direction close to the movable baffle 204 to fix the movable baffle 204.

[0038] like Figure 6 and Figure 7As shown, the movable baffle 204 includes a baffle body 20401. A fixed connection groove 20402 is provided at one end of the baffle body 20401 close to and away from the movable block 2011. A fixed connection block 20403 is provided at one end of the baffle body 20401 away from the fixed connection groove 20402. Transmission columns 20404 are provided at both ends of the baffle body 20401 close to and away from the motor 208, respectively. A sealing rotating plate 20405 is provided at the end of the transmission column 20404 close to the baffle body 20401.

[0039] A sprocket 20406 is provided at the end of the transmission column 20404 away from the sealing rotating plate 20405, a first limit block 20407 is provided at the end of the transmission column 20404 close to the sealing rotating plate 20405, a movable limit block 20408 is provided at the end of the first limit block 20407 close to the guide groove 203, a telescopic rod 20409 is provided at the end of the movable limit block 20408 away from the transmission column 20404, and a second limit block 20410 is provided at the end of the transmission column 20404 close to the first limit block 20407.

[0040] According to the above technical solution, when the baffle body 20401 needs to be rotated, the motor 208 or the transmission chain 209 is first used to rotate the sprocket 20406, the sprocket 20406 drives the transmission column 20404 to rotate, the transmission column 20404 drives the baffle body 20401 and the second limit block 20410 to rotate, and the second limit block 20410 and the first limit block 20407 are used to limit the rotation angle of the transmission column 20404. When the transmission column 20404 rotates ninety degrees, the telescopic rod 20409 is started, and the telescopic rod 20409 is used to move the movable limit block 20408 toward the direction close to the transmission column 20404, thereby The baffle body 20401 rotated ninety degrees is fixed by using the movable limit block 20408. When the baffle body 20401 needs to be returned to its original position, the telescopic rod 20409 is used to return the movable limit block 20408 to its original position, and then the baffle body 20401 is rotated to its original position, and then the fixed connection block 20403 of the baffle body 20401 is placed in the fixed connection groove 20402 of another baffle body 20401, and then the fixed connection block 20403 of the other baffle body 20401 is placed in the fixed connection groove 20402 of the baffle body 20401, so that different baffle bodies 20401 are fixedly connected to each other.

[0041] A petrochemical wastewater reuse process, the process flow is as follows:

[0042] Step 1: Send petrochemical wastewater into the oil-water separator.

[0043] Step 2: Send the petrochemical wastewater after oil-water separation into the coagulation and sedimentation mechanism, then add pH adjuster into the coagulation and sedimentation mechanism to adjust the pH value of the petrochemical wastewater in the coagulation and sedimentation mechanism, and let it settle for a period of time.

[0044] Step 3: Send the petrochemical wastewater that has been precipitated into the biological pool to remove organic matter in the petrochemical wastewater, and at the same time start the coagulation and sedimentation mechanism to clean the sediment in the coagulation and sedimentation mechanism.

[0045] Step 4: Send the petrochemical wastewater in the biological pool into the ozone decomposition mechanism, and then use the feeding cover to evenly send the activated carbon into the petrochemical wastewater inside the ozone decomposition mechanism to remove and adsorb other trace substances.

[0046] Step 5: Send the petrochemical wastewater in the ozone decomposition mechanism into the ultrafiltration equipment, and start the ozone decomposition mechanism to clean the activated carbon in the ozone decomposition mechanism, and then send it into the reverse osmosis machine through the ultrafiltration equipment, and use the ultrafiltration equipment and reverse osmosis machine to remove tiny suspended matter, colloids, bacteria, etc. in the petrochemical wastewater.

[0047] Step 6: Send the petrochemical wastewater treated in the reverse osmosis machine to designated equipment for reuse.

[0048] Working principle:

[0049] The present invention first connects the oil-water separator 1 with the petrochemical sewage outlet, then feeds the petrochemical sewage into the oil-water separator 1, uses the oil-water separator 1 to separate oil, float, etc. on the petrochemical sewage, and then feeds the petrochemical sewage after oil-water separation into the coagulation and sedimentation mechanism 2, then puts a pH adjuster into the coagulation and sedimentation mechanism 2 to adjust the pH value of the petrochemical sewage in the coagulation and sedimentation mechanism 2, and then lets it settle for a period of time, and then feeds the petrochemical sewage after sedimentation into the biological pool 3 to remove organic matter in the petrochemical sewage, and at the same time starts the coagulation and sedimentation mechanism 2, and automatically lets the sediment in the coagulation and sedimentation mechanism 2 fall on the first conveyor belt 7, and uses the first conveyor belt 7 to transport the sediment. To the designated location, the petrochemical sewage in the biological pool 3 is then sent to the ozone decomposition mechanism 4, and the activated carbon is evenly sent into the petrochemical sewage inside the ozone decomposition mechanism 4 using the feeding cover 9. The petrochemical sewage in the ozone decomposition mechanism 4 is then sent to the ultrafiltration equipment 5, and the ozone decomposition mechanism 4 is started to clean the activated carbon in the ozone decomposition mechanism 4. The activated carbon is then transported to the designated location using the second conveyor belt 8, and the petrochemical sewage in the ultrafiltration equipment 5 is then sent to the reverse osmosis machine 6. The ultrafiltration equipment 5 and the reverse osmosis machine 6 are used to remove tiny suspended matter, colloids, bacteria, etc. in the petrochemical sewage, completing the reuse of the petrochemical sewage. The sediment can be automatically and quickly cleaned, thereby accelerating the reuse treatment efficiency of the petrochemical sewage.

[0050] When the sediment in the groove 202 needs to be cleaned, the hydraulic rod 2014 is first started, and the hydraulic rod 2014 is used to move the movable block 2011 toward the direction close to the guide groove 2012, releasing the fixing of the movable block 2011 on the movable baffle 204, and then the motor 208 is started, and the motor 208 drives the movable baffle 204 to rotate. The movable baffle 204 then uses the transmission chain 209 to drive all the movable baffles 204 to rotate, so that all the movable baffles 204 rotate ninety degrees. At this time, the sediment in the groove 202 automatically falls into the guide groove 203. The sediment is then transported to the designated location through the guide trough 203 and the first conveyor belt 7. The cleaning water outlet 205 is then started, and the cleaning water outlet 205 flushes the water flow toward the movable baffle 204 to flush the movable baffle 204, and flushes the remaining sediment on the movable baffle 204 toward the first conveyor belt 7. After the flushing is completed, the motor 208 is started again to return the movable baffle 204 to its original position, and then the hydraulic rod 2014 is started to move the movable block 2011 toward the movable baffle 204 to fix the movable baffle 204.

[0051] Among them, when it is necessary to rotate the baffle body 20401, first use the motor 208 or the transmission chain 209 to rotate the sprocket 20406, the sprocket 20406 drives the transmission column 20404 to rotate, the transmission column 20404 drives the baffle body 20401 and the second limit block 20410 to rotate, and the second limit block 20410 and the first limit block 20407 are used to limit the rotation angle of the transmission column 20404. When the transmission column 20404 rotates ninety degrees, the telescopic rod 20409 is started, and the telescopic rod 20409 is used to move the movable limit block 20408 toward the direction close to the transmission column 20404, thereby using the movable limit block 20408 to rotate. The dynamic limit block 20408 fixes the baffle body 20401 that is rotated ninety degrees. When the baffle body 20401 needs to be returned to its original position, the telescopic rod 20409 is used to return the movable limit block 20408 to its original position, and then the baffle body 20401 is rotated to its original position, and then the fixed connection block 20403 of the baffle body 20401 is placed in the fixed connection groove 20402 of another baffle body 20401, and then the fixed connection block 20403 of another baffle body 20401 is placed in the fixed connection groove 20402 of the baffle body 20401, so that different baffle bodies 20401 are fixedly connected to each other.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A petrochemical wastewater reuse device, comprising an oil-water separator (1), characterized in that: One end of the oil-water separator (1) is provided with a coagulation and sedimentation mechanism (2), an end of the coagulation and sedimentation mechanism (2) away from the oil-water separator (1) is provided with a biological pool (3), an end of the biological pool (3) away from the coagulation and sedimentation mechanism (2) is provided with an ozone decomposition mechanism (4), an end of the ozone decomposition mechanism (4) away from the biological pool (3) is provided with an ultrafiltration device (5), an end of the ultrafiltration device (5) away from the ozone decomposition mechanism (4) is provided with a reverse osmosis machine (6), one end of the coagulation and sedimentation mechanism (2) and the ozone decomposition mechanism (4) are respectively provided with a first conveyor belt (7) and a second conveyor belt (8), and an end of the ozone decomposition mechanism (4) away from the second conveyor belt (8) is provided with a feeding cover (9); The coagulation and sedimentation mechanism (2) comprises a coagulation and sedimentation mechanism main body (201), a groove (202) is provided at one end of the coagulation and sedimentation mechanism main body (201) away from the first conveyor belt (7), a guide drop groove (203) is provided at one end of the coagulation and sedimentation mechanism main body (201) away from the groove (202), a plurality of movable baffles (204) are provided between the groove (202) and the guide drop groove (203), a plurality of cleaning water outlet holes (205) are provided at one end of the groove (202) close to the movable baffle (204), a sewage outlet (206) is provided between the cleaning water outlet holes (205) and the movable baffle (204), and a sewage inlet (207) is provided at one end of the cleaning water outlet holes (205) away from the movable baffle (204); A motor (208) is provided at one end of the coagulation and sedimentation mechanism body (201) close to the movable baffle (204), a transmission chain (209) is provided at both ends of the movable baffle (204) close to the motor (208), a plurality of chutes (2010) are provided between the two transmission chains (209), a movable block (2011) is provided at one end of the chutes (2010) close to the movable baffle (204), a plurality of guide chutes (2012) are provided at one end of the chutes (2010) away from the movable baffle (204), a guide slide column (2013) is provided in the guide chutes (2012), a plurality of hydraulic rods (2014) are provided between the two guide slide columns (2013), and a plurality of sealing layers (215) are provided on the inner wall of one end of the chutes (2010) close to the movable baffle (204); The movable baffle (204) comprises a baffle body (20401), one end of the baffle body (20401) close to and away from the movable block (2011) is provided with a fixed connection groove (20402), one end of the baffle body (20401) away from the fixed connection groove (20402) is provided with a fixed connection block (20403), two ends of the baffle body (20401) close to and away from the motor (208) are respectively provided with transmission columns (20404), and one end of the transmission column (20404) close to the baffle body (20401) is provided with a sealing rotating plate (20405).

2. The petrochemical wastewater reuse device according to claim 1, characterized in that: The first conveyor belt (7) and the second conveyor belt (8) are respectively located directly below the coagulation and sedimentation mechanism (2) and the ozone decomposition mechanism (4).

3. The petrochemical wastewater reuse device according to claim 2, characterized in that: The groove (202) and the guide drop groove (203) are in communication with each other, the sewage outlet (206) is fixedly connected to the biological pool (3), the sewage inlet (207) is fixedly connected to the oil-water separator (1), the end of the guide slide (2013) close to the movable baffle (204) is fixedly connected to the movable block (2011), and the end of the hydraulic rod (2014) close to the movable baffle (204) is fixedly connected to the movable block (2011).

4. The petrochemical wastewater reuse device according to claim 3, characterized in that: A sprocket (20406) is provided at one end of the transmission column (20404) away from the sealing rotating plate (20405), a first limit block (20407) is provided at one end of the transmission column (20404) close to the sealing rotating plate (20405), a movable limit block (20408) is provided at one end of the first limit block (20407) close to the guide groove (203), a telescopic rod (20409) is provided at one end of the movable limit block (20408) away from the transmission column (20404), and a second limit block (20410) is provided at one end of the transmission column (20404) close to the first limit block (20407).

5. The petrochemical wastewater reuse device according to claim 4, characterized in that: The different sprockets (20406) are connected to each other via a transmission chain (209); the motor (208) is fixedly connected to any sprocket (20406); the first limit block (20407) is fixedly connected to the coagulation and sedimentation mechanism body (201); the second limit block (20410) is fixedly connected to the transmission column (20404); and the second limit block (20410) is semicircular.

6. The petrochemical wastewater reuse device according to claim 5, characterized in that: The structure of the coagulation and sedimentation mechanism (2) is the same as that of the ozone decomposition mechanism (4).

Images