Wastewater treatment device for petrochemical production

Abstract

Some embodiments of the present application provide a wastewater treatment device for petrochemical production. In the embodiments of the present application, an electrolytic mounting portion (1) is comprised, and power connecting apparatuses (3) are mounted on the electrolytic mounting portion (1); the two power connecting apparatuses (3) are used for connecting two propulsion electrode plate portions (2) to a positive and negative direct current power supply; and the two propulsion electrode plate portions (2) are used for energizing wastewater inside the electrolytic mounting portion (1).

Description

Wastewater treatment equipment for petrochemical production

[0001] Cross-referencing

[0002] This application incorporates Chinese Patent Application No. 202411588327.5, filed on November 8, 2024, entitled “A Wastewater Treatment Equipment for Petrochemical Production”, which is incorporated herein by reference in its entirety. Technical Field

[0003] This application relates to the field of petrochemical wastewater treatment technology, and in particular to a wastewater treatment device for petrochemical production. Background Technology

[0004] In actual petrochemical production, wastewater needs to be treated after it is produced. The treated wastewater can be reused, which plays an important role in saving water resources and protecting the environment. Wastewater, oil, and impurities need to be treated by electrolysis, aerobic fermentation, and other processes. Wastewater electrolysis treatment refers to the application of the mechanism of electrolysis to transform harmful substances in the original wastewater into harmless substances through oxidation and reduction reactions at the anode and cathode, respectively, thereby achieving wastewater purification.

[0005] The inventors have discovered that the relevant technology has at least the following problems: Most of the wastewater electrolysis treatment equipment in current petrochemical production uses low-cost iron plates, but in actual use, the plates suffer from significant wear and tear, requiring manual observation of rust and wear at regular intervals. The plates are not easy to replace automatically after wear, and the surface is also prone to oil adhesion, resulting in poor overall sealing. When oxygen is added to accelerate catalysis, a large amount of oxygen is leaked, causing waste and increased costs. At the same time, it is not easy to use buoyancy flotation for automatic oil removal, and the oil film formed by floating oil can easily affect the oxidation decomposition efficiency. Summary of the Invention

[0006] The purpose of some embodiments of this application is to provide a wastewater treatment device for petrochemical production.

[0007] Specifically, the wastewater treatment equipment for petrochemical production includes an electrolysis installation section, on which two propulsion electrode sections are mounted; an electrical connection device is installed on the electrolysis installation section; the two electrical connection devices are used to connect the two propulsion electrode sections to a positive and negative DC power supply; the two propulsion electrode sections are used to energize the wastewater inside the electrolysis installation section; a drive limiting component is installed on the electrolysis installation section; the drive limiting component is used to limit the two propulsion electrode sections; a lifting shield is attached to the electrolysis installation section; the drive limiting component is used to squeeze the lifting shield; a recovery device is installed on the electrolysis installation section; the recovery device is used to recover oil; the lifting shield is attached to the recovery device; an inlet / outlet liquid control section is installed on the electrolysis installation section; the inlet / outlet liquid control section is used for simultaneous water inlet and drainage; the electrolysis installation section includes: an electrolytic cell and electrode sliding shells, with two electrode sliding shells fixedly mounted on the electrolytic cell; the two electrode sliding shells are respectively used to mount the two propulsion electrode sections.

[0008] In addition, the drive limiting component also includes: a transmission belt and an extrusion protrusion strip. The transmission belt is driven and sleeved on four drive rollers. The transmission belt has a slotted structure. An extrusion protrusion strip is fixedly installed on the outer side of the transmission belt. The two sides of the extrusion protrusion strip are inclined structures. The transmission belt is located outside the two limiting plates. The extrusion protrusion strip is used to fit and limit the scraping iron electrode plate. The surface of the extrusion protrusion strip is provided with a frosted layer.

[0009] In addition, the recovery device includes: a collection box, an oil inlet, and an oil drain pipe. The collection box is fixedly installed on the electrolytic cell. The collection box passes through the electrolytic cell. The collection box has an oil inlet with a sloping bottom. A lifting baffle plate slides on the collection box. The ends of the two tension springs are fixedly installed on the top of the collection box. An oil drain pipe is fixedly installed on the side of the collection box, and a valve is provided on the oil drain pipe.

[0010] In addition, the electrolysis installation part also includes: a sealing ring, a cover plate, an air filling pipe, a drain pipe, and a limiting plate. Two sealing rings are fixedly installed on the electrolysis cell, and the two sealing rings are respectively aligned with the two electrode sliding shells. A cover plate is fixedly installed on the electrolysis cell. An air filling pipe is fixedly installed on the cover plate. The air filling pipe is connected to an oxygen generator. The top of the two electrode sliding shells is provided with a through groove. A drain pipe is fixedly installed at the bottom of the electrolysis cell, and a valve is provided on the drain pipe. Two limiting plates are fixedly installed inside the electrolysis cell. Two through grooves are opened on the two limiting plates.

[0011] In addition, the driving limiting component includes: driving rollers and driving motors. There are four driving rollers, which are rotatably mounted on the electrolytic cell. The driving motor is fixedly mounted on the side of the electrolytic cell. The output shaft of the driving motor is connected to the end of the driving rollers on the same side.

[0012] In addition, the power receiving device includes: a power receiving sliding shaft, a power receiving block, and a power receiving tension spring. The power receiving sliding shaft is slidably mounted on the sealing ring; the power receiving block is fixedly mounted on the bottom of the power receiving sliding shaft; the power receiving block is attached to the iron electrode plate; the power receiving tension spring is sleeved on the power receiving sliding shaft; the power receiving tension spring is connected between the sealing ring and the power receiving sliding shaft; and the power receiving sliding shaft is connected to an external power source.

[0013] In addition, the lifting baffle includes: a lifting baffle plate, a tension spring, and a lever. The lifting baffle plate is slidably attached to the inner side of the electrolytic cell. Two tension springs are fixedly installed on the lifting baffle plate. Two levers are fixedly installed on the lifting baffle plate, and each lever has a roller. The rollers on the two levers are respectively attached to the outer side of the transmission belt. The extrusion protrusion is used to extrude the rollers on the levers. The lifting baffle plate is used to control the water level.

[0014] Additionally, the electrode plate propulsion section includes: an electrode plate propulsion plate, a tension spring connecting plate, a propulsion tension spring, an iron electrode plate, and a hydraulic cylinder. The electrode plate propulsion plate is slidably installed inside the electrode plate sliding shell. Four tension spring connecting plates are fixedly installed on the electrode plate propulsion plate, and the four tension spring connecting plates pass through the electrode plate sliding shell respectively. Propulsion tension springs are fixedly installed on the four tension spring connecting plates respectively. The ends of the four propulsion tension springs are respectively connected to the side of the electrolytic cell. A row of iron electrode plates is slidably sleeved inside the electrode plate sliding shell. The electrode plate propulsion plate is in contact with the rear iron electrode plate. The sealing ring is sealed and sleeved on the front iron electrode plate. Two limiting plates are used to limit the front iron electrode plate. A through groove is provided at the top of the electrode plate sliding shell for inserting an iron electrode plate. Hydraulic cylinders are fixedly installed on the two upper tension spring connecting plates.

[0015] Additionally, the liquid inlet / outlet control unit includes: an inlet / outlet installation pipe, a wastewater discharge hole, a drain hole, a drain inlet, and a water inlet box. The inlet / outlet installation pipe is fixedly installed on the electrolytic cell; the inlet / outlet installation pipe is obliquely inserted through the electrolytic cell; a wastewater discharge hole is provided on the upper lower side of the inlet / outlet installation pipe; a drain hole is provided on the upper and lower lower sides of the inlet / outlet installation pipe; the drain hole is located outside the electrolytic cell; the wastewater discharge hole is located inside the electrolytic cell; a drain inlet is provided on the lower upper side of the inlet / outlet installation pipe; the drain inlet is located inside the electrolytic cell; the water inlet box is fixedly installed on the inlet / outlet installation pipe; the water inlet box is used for wastewater inlet.

[0016] In addition, the inlet / outlet liquid control unit also includes: a drain motor, a discharge column, and a discharge trough. The drain motor is fixedly installed above the inlet / outlet installation pipe. Two discharge columns are fixedly installed on the output shaft of the drain motor, and the two discharge columns are respectively sealed and fitted inside the inlet / outlet installation pipe. Discharge troughs are opened on the two discharge columns, and the volume of the upper discharge trough is larger than that of the lower discharge trough. The upper discharge trough corresponds to the sewage discharge hole and the water inlet box, and the lower discharge trough corresponds to the drain hole and the drain inlet hole. The upper discharge trough is used to receive sewage, and the lower discharge trough is used to discharge electrolyzed water. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 is a schematic diagram of the overall structure in an embodiment of this application;

[0019] Figure 2 is a schematic diagram of the bottom structure in an embodiment of this application;

[0020] Figure 3 is a cross-sectional view of the internal structure in an embodiment of this application;

[0021] Figure 4 is a schematic diagram of the internal structure of the electrolytic cell in an embodiment of this application;

[0022] Figure 5 is a schematic diagram of the electrolysis mounting section structure in an embodiment of this application;

[0023] Figure 6 is a schematic diagram of the propulsion electrode structure in an embodiment of this application;

[0024] Figure 7 is an enlarged view of the structure of region C in Figure 3 in an embodiment of this application;

[0025] Figure 8 is a schematic diagram of the drive limiting member structure in an embodiment of this application;

[0026] Figure 9 is a schematic diagram of the lifting and blocking component structure in an embodiment of this application;

[0027] Figure 10 is a cross-sectional view of the recycling device structure in an embodiment of this application;

[0028] Figure 11 is a schematic diagram of the structure of the liquid inlet / outlet control unit in an embodiment of this application;

[0029] Figure 12 is a cross-sectional view of the liquid inlet / outlet control unit structure in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Electrolysis mounting section; 101. Electrolytic cell; 1011. Electrode plate sliding shell; 1012. Sealing ring; 102. Cover plate; 1021. Gas filling pipe; 103. Sewage pipe; 104. Limiting plate; 2. Electrode plate pushing section; 201. Electrode plate pushing plate; 2011. Tension spring connecting plate; 202. Pushing tension spring; 203. Iron electrode plate; 204. Hydraulic cylinder; 3. Electrical connection device; 301. Electrical connection sliding shaft; 302. Electrical connection block; 303. Electrical connection tension spring; 4. Drive limiting component; 401. Drive roller; 4011. Drive motor; 402. Transmission belt; 40 3. Extrusion protrusion strip; 5. Lifting baffle; 501. Lifting baffle plate; 502. Tension spring; 503. Lever; 6. Recovery device; 601. Collection box; 6011. Oil inlet; 602. Oil drain pipe; 7. Liquid inlet / outlet control unit; 701. Inlet / outlet mounting pipe; 7011. Sewage discharge hole; 7012. Drain hole; 7013. Drain inlet; 702. Water inlet box; 703. Drainage motor; 704. Discharge column; 7041. Discharge trough. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, some embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0032] This application first addresses the rapid updating of dynamic and timely information in modern factories. Based on understanding and parsing existing information uploaded from the client side, it implements preprocessing and query generation, information retrieval and integration, and an update timing detection and rapid update mechanism. It uses a large language model to identify key facts and associate them with concepts derived from the input text, then checks for inconsistencies, omissions, or contradictions, and completes the traceability of input information. Secondly, to meet the diverse modalities required for information presentation in modern factories, in addition to text, it adds the conversion of voice, tables, physical images, and videos towards a text corpus, while establishing connections between modalities, thus making information presentation more diverse.

[0033] As shown in Figures 1 to 12, the first embodiment of this application relates to a wastewater treatment device for petrochemical production.

[0034] The wastewater treatment equipment includes an electrolysis mounting section 1, on which two propulsion electrode sections 2 are mounted; an electrical connection device 3 is mounted on the electrolysis mounting section 1; the two electrical connection devices 3 are used to connect the two propulsion electrode sections 2 to a positive and negative DC power supply; the two propulsion electrode sections 2 are used to energize the wastewater inside the electrolysis mounting section 1; a drive limiting component 4 is mounted on the electrolysis mounting section 1; the drive limiting component 4 is used to limit the two propulsion electrode sections 2; a lifting shield 5 is attached to the electrolysis mounting section 1; the drive limiting component 4... The lifting shield 5 is used for extrusion; a recycling device 6 is installed on the electrolysis mounting part 1; the recycling device 6 is used to recycle oil; the lifting shield 5 is attached to the recycling device 6; an inlet / outlet liquid control part 7 is installed on the electrolysis mounting part 1; the inlet / outlet liquid control part 7 is used for simultaneous water inlet and drainage; the electrolysis mounting part 1 includes: an electrolysis cell 101 and an electrode sliding shell 1011, two electrode sliding shells 1011 are fixedly installed on the electrolysis cell 101; the two electrode sliding shells 1011 are respectively used to install two propulsion electrode parts 2.

[0035] In this embodiment, the electrolysis installation part 1 further includes: a sealing ring 1012, a cover plate 102, an air filling pipe 1021, a drain pipe 103, and a limiting plate 104. Two sealing rings 1012 are fixedly installed on the electrolysis cell 101, and the two sealing rings 1012 are respectively aligned with the two electrode sliding shells 1011. A cover plate 102 is fixedly installed on the electrolysis cell 101. An air filling pipe 1021 is fixedly installed on the cover plate 102. An oxygen generator is connected to the air filling pipe 1021. A through groove is provided on the top of each of the two electrode sliding shells 1011. A drain pipe 103 is fixedly installed at the bottom of the electrolysis cell 101, and a valve is provided on the drain pipe 103. Two limiting plates 104 are fixedly installed inside the electrolysis cell 101. Two through grooves are respectively opened on the two limiting plates 104. The electrode plate propulsion section 2 includes: an electrode plate propulsion plate 201, a tension spring connecting plate 2011, a propulsion tension spring 202, an iron electrode plate 203, and a hydraulic cylinder 204. The electrode plate propulsion plate 201 is slidably installed inside the electrode plate sliding shell 1011. Four tension spring connecting plates 2011 are fixedly installed on the electrode plate propulsion plate 201, and the four tension spring connecting plates 2011 pass through the electrode plate sliding shell 1011 respectively. Propulsion tension springs 202 are fixedly installed on the four tension spring connecting plates 2011 respectively. The ends of the four propulsion tension springs 202 are respectively connected to the side of the electrolytic cell 101. A row of iron electrode plates 203 is slidably sleeved inside the electrode plate sliding shell 1011. The electrode plate propulsion plate 201 fits against the rear iron electrode plate 203. A sealing ring 1012 seals the front iron electrode plate 203. Two limiting plates 104 are used to limit the iron electrode plate 203 on the front side; a through groove is provided on the top of the electrode plate sliding shell 1011 for inserting the iron electrode plate 203; hydraulic cylinders 204 are fixedly installed on the two upper tension spring connecting plates 2011; the power connection device 3 includes: a power connection sliding shaft 301, a power connection block 302 and a power connection tension spring 303, the power connection sliding shaft 301 is slidably installed on the sealing ring 1012; the power connection block 302 is fixedly installed at the bottom of the power connection sliding shaft 301; the power connection block 302 is attached to the iron electrode plate 203; the power connection tension spring 303 is sleeved on the power connection sliding shaft 301; the power connection tension spring 303 is connected between the sealing ring 1012 and the power connection sliding shaft 301; the power connection sliding shaft 301 is connected to an external power source, and by pushing the electrode plate part 2, automatic pushing can be realized. The iron electrode plate 203 is inserted to prevent its wear and tear from affecting the electrolysis effect and to avoid the tedious manual replacement of the iron electrode plate 203 each time. The iron electrode plate 203 can be stored to improve the maintenance cycle. At the same time, the energizing device 3 of this structure can keep the iron electrode plate 203 energized in real time to ensure continuous electrolysis. The electrolytic cell 101 used in this structure, together with the cover plate 102, can realize the oxidation of pollutants with the assistance of oxygen. The oxidation and decomposition of pollutants in wastewater can improve the quality of wastewater treatment. As the iron electrode plate 203 is gradually worn down by rust and friction from the pressure of the protruding strip 403, the push spring 202 can keep the iron electrode plate 203 energized at the bottom of the energizing block 302 in real time. At the same time, the row of iron electrode plates 203 can also automatically replace the old ones after they are worn out.

[0036] In this embodiment, the driving limiting component 4 includes: driving rollers 401 and driving motors 4011. Four driving rollers 401 are provided, and each of the four driving rollers 401 is rotatably mounted on the electrolytic cell 101. The driving motor 4011 is fixedly mounted on the side of the electrolytic cell 101. The output shaft of the driving motor 4011 is connected to the end of the driving rollers 401 on the same side. The driving limiting component 4 also includes: a transmission belt 402 and an extrusion protrusion strip 403. The transmission belt 402 is sleeved on the four driving rollers 401. The transmission belt 402 has a slotted structure. A ring of extrusion protrusion strip 403 is fixedly mounted on the outer side of the transmission belt 402. The two sides of the ring of extrusion protrusion strip 403 are inclined structures. The transmission belt 402 is located outside the two limiting plates 104. The extrusion protrusion strip 403 is used to adhere to and limit the scraping of the iron electrode plate 203. The surface of the extrusion protrusion strip 403 has a frosted layer. The driving limiting component 4 is used... The extrusion protrusions 403 prevent oil from petrochemical wastewater from adhering to the surface of the iron electrode plate 203, thus affecting its conductivity. The abrasive layer on the surface of the extrusion protrusions 403 scrapes and grinds the iron electrode plate 203, preventing surface rust from affecting conductivity. At the same time, the friction of the extrusion protrusions 403 on the surface of the iron electrode plate 203 also helps to eliminate air bubbles. The drive motor 4011 drives the drive roller 401 to drive the transmission belt 402 for conveying. During the process, under the limiting action of the limiting plate 104, the extrusion protrusions 403 on both sides of the limiting plate 104 will rub against the surface of the iron electrode plate 203. Some of the iron filings or rust generated can be settled and treated in the subsequent sedimentation process without affecting the wastewater treatment quality. The extrusion protrusions 403 can also squeeze the rollers on the lever 503 to control the descent height of the lifting baffle 501, thus assisting in the discharge of floating oil.

[0037] In this embodiment, the lifting baffle 5 includes: a lifting baffle plate 501, a tension spring 502, and a lever 503. The lifting baffle plate 501 is slidably attached to the inner side of the electrolytic cell 101. Two tension springs 502 are fixedly installed on the lifting baffle plate 501. Two levers 503 are fixedly installed on the lifting baffle plate 501, and each lever 503 is provided with a roller. The rollers on the two levers 503 are respectively attached to the outer side of the transmission belt 402. The extrusion protrusion 403 is used to extrude the rollers on the levers 503. The lifting baffle plate 501 is used to control the water level. The recovery device 6 includes: a collection box 601, an oil inlet 6011, and an oil drain pipe 602. The collection box 601 is fixedly installed on the electrolytic cell 101. The collection box 601 passes through the electrolytic cell 101. The collection box 601 has an oil inlet 6011, and oil enters through it. The bottom of the collection box 6011 has a sloping structure; the lifting baffle 501 slides and fits on the collection box 601; the ends of two tension springs 502 are fixedly installed on the top of the collection box 601; an oil drain pipe 602 is fixedly installed on the side of the collection box 601, and a valve is provided on the oil drain pipe 602; the lifting baffle 501 can be used to control the liquid level. During the operation of the extrusion bar 403, the lifting baffle 501 can automatically squeeze the lever 503 to control the lowering of the lifting baffle 501. By lowering the height of the lifting baffle 501, the floating oil can be discharged quickly, which can ensure the oxidation and decomposition efficiency of this structure after oxygenation, avoid the oil film formed by the oil floating on the liquid surface and affect the oxidation quality, and improve the overall sewage treatment effect. The collection box 601 can also be used to directly receive and collect floating oil.

[0038] Compared with the prior art, the wastewater treatment equipment in this embodiment adopts an inlet / outlet control unit. It can discharge electrolyzed water at the same time as the wastewater is introduced through the inclined inlet / outlet installation pipe. The discharge column is set in the inlet / outlet installation pipe to maintain the airtightness of the structure during the process of wastewater introduction and drainage, so as not to allow too much air to enter. This can improve the oxygen sealing effect between the electrolytic cell and the matching cover plate, improve the oxidation decomposition efficiency, reduce the use cost, and avoid oxygen waste.

[0039] In addition, the use of a lifting baffle plate allows for control of the liquid level. During the operation of the squeezing protrusion bar, the lifting baffle plate automatically squeezes the lever to control its descent. By lowering the height of the lifting baffle plate, the floating oil is quickly discharged, ensuring the oxidation and decomposition efficiency after oxygenation and preventing the oil film formed by the liquid from floating on the surface and affecting the oxidation quality, thus improving the overall wastewater treatment effect.

[0040] In addition, the adoption of the electrode plate propulsion section can realize the automatic propulsion of iron electrode plates, avoiding the impact of their wear on the electrolysis effect. It eliminates the need for tedious manual replacement each time, allows for the storage of iron electrode plates, and improves the maintenance cycle. At the same time, the energizing device can keep the iron electrode plates energized in real time, ensuring continuous electrolysis.

[0041] In addition, the use of drive limiting components and extrusion protrusions can prevent oil from petrochemical wastewater from adhering to the surface of the iron plate, thus affecting the conductivity of the iron plate. The abrasive layer on the surface of the extrusion protrusions scrapes and grinds the iron plate, preventing the surface rust layer from affecting the conductivity. At the same time, the friction of the extrusion protrusions on the surface of the iron plate also helps to eliminate air bubbles.

[0042] The second embodiment of this application, based on the first embodiment, relates to an inlet / outlet liquid control unit 7, specifically including: an inlet / outlet installation pipe 701, a sewage discharge hole 7011, a drain hole 7012, a drain inlet hole 7013, and a water inlet box 702. The inlet / outlet installation pipe 701 is fixedly installed on the electrolytic cell 101; the inlet / outlet installation pipe 701 is obliquely inserted through the electrolytic cell 101; a sewage discharge hole 7011 is provided on the lower side above the inlet / outlet installation pipe 701; a drain hole 7012 is provided on the lower side above and below the inlet / outlet installation pipe 701; the drain hole 7012 is located outside the electrolytic cell 101; the sewage discharge hole 7011 is located inside the electrolytic cell 101; and a drain hole 7012 is provided on the upper side below the inlet / outlet installation pipe 701. A drainage inlet 7013 is provided; the drainage inlet 7013 is located inside the electrolytic cell 101; a water inlet box 702 is fixedly installed on the inlet / outlet mounting pipe 701; the water inlet box 702 is used for inlet wastewater; the inlet / outlet liquid control unit 7 also includes: a drainage motor 703, a discharge column 704, and a discharge trough 7041, the drainage motor 703 is fixedly installed above the inlet / outlet mounting pipe 701; two discharge columns 704 are fixedly installed on the output shaft of the drainage motor 703, and the two discharge columns 704 are respectively sealed and sleeved inside the inlet / outlet mounting pipe 701; a discharge trough 7041 is opened on each of the two discharge columns 704, and the volume of the upper discharge trough 7041 is larger than that of the lower discharge trough 7041; The square discharge trough 7041 corresponds to the sewage discharge hole 7011 and the water inlet box 702, while the lower discharge trough 7041 corresponds to the drain hole 7012 and the drain inlet hole 7013. The upper discharge trough 7041 is used for sewage inlet, and the lower discharge trough 7041 is used for discharging electrolyzed water. Using the inlet / outlet control unit 7, the electrolyzed water can be discharged simultaneously with the sewage inlet / outlet installation pipe 701. A discharge column 704 is installed inside the inlet / outlet installation pipe 701 to maintain the airtightness of the structure during sewage inlet and outlet processes, preventing excessive air entry and improving the oxygen seal between the electrolytic cell 101 and the mating cover plate 102. The closed-loop effect avoids the waste caused by oxygen being directly released into the air after being discharged from the sewage during water intake and drainage, which is a common problem in traditional aeration methods. This reduces operating costs and prevents oxygen waste. The upper discharge trough 7041 has a larger volume than the lower discharge trough 7041, which creates a liquid difference between the sewage intake and discharge. This allows the floating oil to be discharged smoothly when the lifting baffle 5 descends. The structure of the upper discharge trough 7041 corresponding to the sewage discharge hole 7011 and the water inlet box 702, and the lower discharge trough 7041 corresponding to the drain hole 7012 and the drain inlet hole 7013, is more reasonable. It prevents air from entering during water intake, allowing only sewage to flow and reducing oxygen loss.

[0043] The working principle of this embodiment is as follows:

[0044] First, connect the air inlet pipe 1021 to the sewage pipe, and fill the electrolysis cell 101 with sewage level with the lifting baffle 501. Afterward, there is no need to add water again through the air inlet pipe 1021, as it can be directly connected to the oxygen generator. Sewage is introduced into the water inlet box 702. The two electrically connected sliding shafts 301 are connected to the positive and negative power supplies respectively. Under the pull of the electrically connected tension spring 303, the electrically connected block 302 elastically contacts the iron electrode plate 203 to provide power. When the drainage motor 703 rotates, it drives... As the discharge column 704 rotates, the discharge trough 7041 on the upper discharge column 704 is filled with wastewater from the inlet box 702. With the rotation of the discharge trough 7041, when it reaches the wastewater discharge hole 7011, the wastewater is discharged into the electrolytic cell 101. Simultaneously, the lower discharge trough 7041 rotates from the drain inlet hole 7013 to the drain hole 7012. Because the inlet / outlet installation pipe 701 is installed at an angle, the lower discharge trough 7041 is filled with wastewater through the drain inlet hole 7013. After electrolysis, the chemical wastewater is discharged through the drain hole 7012 via the discharge tank 7041 below the lower discharge column 7041 as the discharge column 704 rotates. With increasing usage time, the iron electrode plate 203 gradually becomes corroded and worn due to friction from the compression protrusion 403. Using the pull of the push spring 202, the iron electrode plate 203 is kept at the bottom of the contact block 302 to maintain energization. The iron electrode plate 203 also elastically conforms to the compression protrusion 403. As the foremost iron electrode plate 203... Once the 03 is completely worn out, the row of iron electrode plates 203 will automatically fill in the gaps. With the help of the fixed limiting plate 104, it can prevent the iron electrode plates 203 from being pushed out too much and increasing the loss. By activating the hydraulic cylinder 204, the output shaft of the hydraulic cylinder 204 is pressed against the electrolytic cell 101, which can drive the electrode plate push plate 201 to move backward, so that the iron electrode plates 203 can be inserted through the through slot at the top of the electrode plate sliding shell 1011. The structure is more reasonable and it is convenient to add iron electrode plates 203 in batches at one time.

[0045] Secondly, the drive motor 4011 drives the drive roller 401 to drive the transmission belt 402 for conveying. During the process, under the limiting action of the limiting plate 104, the extrusion protrusions 403 located on both sides of the limiting plate 104 will rub against the surface of the iron plate 203. The extrusion protrusions 403 can also squeeze the roller on the lever 503 to control the lowering height of the lifting baffle 501. The tension spring 502 can automatically pull back and reset when the extrusion lever 503 is between two adjacent extrusion protrusions 403. This structure can help to discharge the floating oil on the top of the liquid surface and introduce it into the oil inlet 6011. The structure is highly efficient and avoids the high cost of adsorption by materials such as filter cotton. The floating oil can be directly introduced into the collection box 601 for collection, and can be discharged later by opening the valve on the oil drain pipe 602.

[0046] Those skilled in the art will understand that the above embodiments are specific embodiments for implementing this application, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of this application.

Claims

1. A wastewater treatment device for petrochemical production, comprising an electrolysis mounting section (1), wherein two propulsion electrode sections (2) are mounted on the electrolysis mounting section (1), wherein, The electrolysis mounting section (1) is equipped with a power connection device (3); the two power connection devices (3) are used to connect the two propulsion plate sections (2) to a positive and negative DC power supply; the two propulsion plate sections (2) are used to energize the sewage inside the electrolysis mounting section (1); The electrolysis mounting part (1) is equipped with a drive limiting member (4); the drive limiting member (4) is used to limit the two propulsion electrode parts (2); The electrolysis mounting part (1) is fitted with a lifting shield (5); the driving limiting part (4) is used to squeeze the lifting shield (5); A recycling device (6) is installed on the electrolysis mounting part (1); the recycling device (6) is used to recycle oil; the lifting shield (5) is attached to the recycling device (6); The electrolysis mounting section (1) is equipped with a liquid inlet / outlet control section (7); the liquid inlet / outlet control section (7) is used for simultaneous water inlet and drainage; The electrolysis mounting part (1) includes: an electrolytic cell (101) and an electrode sliding shell (1011). Two electrode sliding shells (1011) are fixedly installed on the electrolytic cell (101). The two electrode sliding shells (1011) are respectively used to install two propulsion electrode parts (2). The liquid inlet / outlet control unit (7) includes: an inlet / outlet installation pipe (701), a sewage discharge hole (7011), a drain hole (7012), a drain inlet hole (7013), and a water inlet box (702). The inlet / outlet installation pipe (701) is fixedly installed on the electrolytic cell (101). The inlet / outlet installation pipe (701) is obliquely inserted through the electrolytic cell (101). A sewage discharge hole (7011) is provided on the upper and lower sides of the inlet / outlet installation pipe (701). The inlet / outlet installation pipe (701) is located at the top and bottom. A drain hole (7012) is provided on the lower side of the electrolytic cell (101); the drain hole (7012) is located outside the electrolytic cell (101); the sewage discharge hole (7011) is located inside the electrolytic cell (101); a drain inlet hole (7013) is provided on the upper side below the inlet / outlet installation pipe (701); the drain inlet hole (7013) is located inside the electrolytic cell (101); the water inlet box (702) is fixedly installed on the inlet / outlet installation pipe (701); the water inlet box (702) is used to inlet sewage.

2. The wastewater treatment equipment for petrochemical production as described in claim 1, wherein, The electrolysis mounting part (1) further includes: a sealing ring (1012), a cover plate (102), an air filling pipe (1021), a drain pipe (103), and a limiting plate (104). Two sealing rings (1012) are fixedly installed on the electrolysis cell (101), and the two sealing rings (1012) are respectively aligned with the two electrode sliding shells (1011). A cover plate (102) is fixedly installed on the electrolysis cell (101). The cover plate (102) is... 2) An air filling pipe (1021) is fixedly installed on the upper part; the air filling pipe (1021) is connected to an oxygen generator; the top of the two electrode sliding shells (1011) are respectively provided with through grooves; a sewage pipe (103) is fixedly installed at the bottom of the electrolytic cell (101), and a valve is provided on the sewage pipe (103); two limiting plates (104) are fixedly installed inside the electrolytic cell (101); two through grooves are respectively opened on the two limiting plates (104).

3. The wastewater treatment equipment for petrochemical production as described in claim 2, wherein, The propulsion plate section (2) includes: an electrode plate propulsion plate (201), a tension spring connecting plate (2011), a propulsion tension spring (202), an iron electrode plate (203), and a hydraulic cylinder (204). The electrode plate propulsion plate (201) is slidably installed inside the electrode plate sliding shell (1011). Four tension spring connecting plates (2011) are fixedly installed on the electrode plate propulsion plate (201), and the four tension spring connecting plates (2011) pass through the electrode plate sliding shell (1011) respectively. Propulsion tension springs (202) are fixedly installed on the four tension spring connecting plates (2011) respectively. 202) The ends are respectively connected to the side of the electrolytic cell (101); a row of iron electrode plates (203) are slidably sleeved inside the electrode plate sliding shell (1011); the electrode plate push plate (201) is attached to the iron electrode plate (203) on the rear side; the sealing ring (1012) is sealed and sleeved to the iron electrode plate (203) on the front side; the two limiting plates (104) are used to limit the iron electrode plate (203) on the front side; the through groove provided at the top of the electrode plate sliding shell (1011) is used to insert the iron electrode plate (203); hydraulic cylinders (204) are fixedly installed on the two tension spring connecting plates (2011) above.

4. The wastewater treatment equipment for petrochemical production as described in claim 3, wherein, The power receiving device (3) includes: a power receiving sliding shaft (301), a power receiving block (302), and a power receiving tension spring (303). The power receiving sliding shaft (301) is slidably mounted on a sealing ring (1012). A power receiving block (302) is fixedly mounted on the bottom of the power receiving sliding shaft (301). The power receiving block (302) is attached to the iron electrode plate (203). A power receiving tension spring (303) is sleeved on the power receiving sliding shaft (301). The power receiving tension spring (303) is connected between the sealing ring (1012) and the power receiving sliding shaft (301). The power receiving sliding shaft (301) is connected to an external power source.

5. A wastewater treatment device for petrochemical production as described in claim 3, wherein, The driving limiting component (4) includes: a driving roller (401) and a driving motor (4011). There are four driving rollers (401), and the four driving rollers (401) are rotatably mounted on the electrolytic cell (101). The driving motor (4011) is fixedly mounted on the side of the electrolytic cell (101). The output shaft of the driving motor (4011) is connected to the end of the driving roller (401) on the same side.

6. The wastewater treatment equipment for petrochemical production as described in claim 5, wherein, The drive limiting component (4) further includes: a transmission belt (402) and an extrusion protrusion strip (403). The transmission belt (402) is driven and sleeved on four drive rollers (401). The transmission belt (402) is provided with a slotted structure. An extrusion protrusion strip (403) is fixedly installed on the outside of the transmission belt (402). The two sides of the extrusion protrusion strip (403) are respectively inclined structures. The transmission belt (402) is located outside the two limiting plates (104). The extrusion protrusion strip (403) is used to fit and limit the scraping iron electrode plate (203). The surface of the extrusion protrusion strip (403) is provided with a frosted layer.

7. A wastewater treatment device for petrochemical production as described in claim 6, wherein, The lifting shield (5) includes: a lifting shield plate (501), a tension spring (502), and a lever (503). The lifting shield plate (501) is slidably attached to the inner side of the electrolytic cell (101). Two tension springs (502) are fixedly installed on the lifting shield plate (501). Two levers (503) are fixedly installed on the lifting shield plate (501), and each lever (503) is provided with a roller. The rollers on the two levers (503) are respectively attached to the outer side of the transmission belt (402). The extrusion protrusion (403) is used to extrude the rollers on the levers (503). The lifting shield plate (501) is used to control the water level.

8. A wastewater treatment device for petrochemical production as described in claim 7, wherein, The recycling device (6) includes: a collection box (601), an oil inlet (6011), and an oil drain pipe (602). The collection box (601) is fixedly installed on the electrolytic cell (101). The collection box (601) passes through the electrolytic cell (101). The collection box (601) has an oil inlet (6011) with a sloping bottom. The collection box (601) has a sliding and fitting lifting baffle (501). The ends of the two tension springs (502) are fixedly installed on the top of the collection box (601). The oil drain pipe (602) is fixedly installed on the side of the collection box (601) and has a valve.

9. A wastewater treatment device for petrochemical production as described in claim 1, wherein, The inlet / outlet liquid control unit (7) further includes: a drain motor (703), a discharge column (704), and a discharge trough (7041). The drain motor (703) is fixedly installed above the inlet / outlet installation pipe (701). Two discharge columns (704) are fixedly installed on the output shaft of the drain motor (703), and the two discharge columns (704) are respectively sealed and sleeved inside the inlet / outlet installation pipe (701). Discharge troughs (7041) are respectively opened on the two discharge columns (704), and the volume of the upper discharge trough (7041) is larger than that of the lower discharge trough (7041). The upper discharge trough (7041) corresponds to the sewage discharge hole (7011) and the water inlet box (702), and the lower discharge trough (7041) corresponds to the drain hole (7012) and the drain inlet hole (7013). The upper discharge trough (7041) is used to receive sewage, and the lower discharge trough (7041) is used to discharge electrolyzed water.

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