A wastewater treatment equipment for petrochemical production

Abstract

The invention provides a sewage treatment device for petrochemical production, and relates to the technical field of petrochemical sewage treatment. The sewage treatment device comprises an electrolysis installation part, on which two propulsion plate parts are installed; a power connection device is installed on the electrolysis installation part; the two power connection devices are used to connect the two propulsion plate parts to a positive and negative direct current power supply; the two propulsion plate parts are used to electrify sewage inside the electrolysis installation part; automatic electrification and automatic replacement of the propulsion plate can be realized; the problem that the current sewage electrolysis treatment equipment for petrochemical production has large plate loss, requires manual regular observation of rust loss, is not convenient for automatic replacement of the plate after loss, and is extremely easy to adhere to oil on the surface is solved.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical wastewater treatment, and in particular to wastewater treatment equipment for petrochemical production. Background Art

[0002] In actual petrochemical production and manufacturing work, sewage needs to be treated after it is produced. The treated sewage can also be reused, which plays an important role in saving water resources and protecting the environment. It is necessary to electrolyze and aerobic fermentation to treat oil impurities in sewage. The sewage electrolysis treatment method refers to the use of the mechanism of electrolysis to make the harmful substances in the original sewage undergo oxidation and reduction reactions at the positive and negative electrodes through the electrolysis process to transform them into harmless substances to achieve sewage purification. At present, the sewage electrolysis treatment equipment in petrochemical production mostly uses low-cost iron plates, but the plate loss is large in actual use, and it is necessary to manually observe the rust loss regularly. The plate is not convenient for automatic replacement after loss. At the same time, the surface is also very easy to adhere to oil, and the overall sealing effect is poor. A large amount of oxygen leaks when oxygen is filled to accelerate catalysis, resulting in waste and cost increase. At the same time, it is not convenient to use buoyancy flotation to automatically remove oil, and the oil film formed by floating oil easily affects the efficiency of oxidation decomposition. Summary of the invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, an embodiment of the present invention relates to a wastewater treatment equipment for petrochemical production, which has a propulsion plate part, can realize automatic propulsion of the plate to be energized, can realize automatic replacement, and can prevent the oil in the sewage from affecting the conductive performance of the plate due to long-term use, can improve the electrolysis effect, and avoid increasing additional power consumption.

[0004] According to a first aspect of the present invention, there is provided a wastewater treatment device for petrochemical production, which specifically comprises an electrolysis installation part, on which two propulsion plate parts are installed; a power connection device is installed on the electrolysis installation part; the two power connection devices are used to connect the two propulsion plate parts to a positive and negative DC power supply; the two propulsion plate parts are used to energize the sewage inside the electrolysis installation part; a drive limiter is installed on the electrolysis installation part; the drive limiter is used to limit the two propulsion plate parts; a lifting shielding member is attached to the electrolysis installation part; the drive limiter is used to squeeze the lifting shielding member; a recovery device is installed on the electrolysis installation part; the recovery device is used to recover oil pollution; the lifting shielding member is attached to the recovery device; an inlet and outlet liquid control part is installed on the electrolysis installation part; the inlet and outlet liquid control part is used to simultaneously inlet and drain water; the electrolysis installation part comprises: an electrolytic cell and a plate sliding shell, on which two plate sliding shells are fixedly installed; the two plate sliding shells are used to install two propulsion plate parts respectively.

[0005] Furthermore, the drive limiter also includes: a transmission belt and an extruded protrusion strip, the transmission belt is driven and sleeved on four driving rollers; a slot structure is provided on the transmission belt; a circle of extruded protrusion strips is fixedly installed on the outside of the transmission belt; both sides of the circle of extruded protrusion strips are inclined structures; the transmission belt is located on the outside of two limit plates; the extruded protrusion strip is used to fit the limit scraping iron pole plate, and a frosted layer is provided on the surface of the extruded protrusion strip.

[0006] Furthermore, the recovery device includes: a collecting box, an oil inlet and an oil drain pipe, the collecting box is fixedly mounted on the electrolytic cell; the collecting box passes through the electrolytic cell; an oil inlet is opened on the collecting box, and the bottom of the oil inlet is an inclined structure; a lifting baffle plate is slidably fitted on the collecting box; the two ends of the tension spring are respectively fixedly mounted on the top of the collecting box; an oil drain pipe is fixedly mounted on the side of the collecting box, and a valve is provided on the oil drain pipe.

[0007] Furthermore, the electrolysis installation part also includes: a sealing ring, a cover plate, an inflation pipe, a sewage pipe and a limit plate. Two sealing rings are fixedly installed on the electrolytic cell, and the two sealing rings are respectively aligned with the two electrode plate sliding shells; a cover plate is fixedly installed on the electrolytic cell; an inflation pipe is fixedly installed on the cover plate; the inflation pipe is externally connected to an oxygen generator; through grooves are respectively provided on the tops of the two electrode plate sliding shells; a sewage pipe is fixedly installed on the bottom of the electrolytic cell, and a valve is provided on the sewage pipe; two limit plates are fixedly installed inside the electrolytic cell; two through grooves are respectively provided on the two limit plates.

[0008] Furthermore, the drive limiter includes: a drive roller and a drive motor, wherein four drive rollers are provided and the four drive rollers are rotatably mounted on the electrolytic cell respectively; the drive motor is fixedly mounted on the side of the electrolytic cell; and the output shaft of the drive motor is connected to the end of the drive roller on the same side.

[0009] Furthermore, the power connection device includes: a power connection sliding shaft, a power connection block and a power connection tension spring, the power connection sliding shaft is slidably installed on the sealing ring; a power connection block is fixedly installed on the bottom of the power connection sliding shaft; the power connection block is attached to the iron electrode plate; a power connection tension spring is sleeved on the power connection sliding shaft; the power connection tension spring is connected between the sealing ring and the power connection sliding shaft; the power connection sliding shaft is externally connected to a power source.

[0010] Furthermore, the lifting shielding component includes: a lifting shielding plate, a tension spring and a lever, the lifting shielding plate is slidably fitted on the inner side of the electrolytic cell; two tension springs are fixedly installed on the lifting shielding plate; two levers are fixedly installed on the lifting shielding plate, and rollers are respectively provided on the two levers; the rollers on the two levers are respectively attached to the outer side of the transmission belt; the extrusion protrusion strip is used to squeeze the rollers on the lever; the lifting shielding plate is used to control the water level.

[0011] Furthermore, the propulsion plate part includes: a plate propulsion plate, a tension spring connecting plate, a propulsion tension spring, an iron plate and a hydraulic cylinder, wherein the plate propulsion plate is slidably installed inside the plate sliding shell; four tension spring connecting plates are fixedly installed on the plate propulsion plate, and the four tension spring connecting plates pass through the 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 sides of the electrolytic cell; a row of iron plates are slidably sleeved inside the plate sliding shell; the plate propulsion plate fits the iron plate on the rear side; the sealing ring is sealingly sleeved on the iron plate on the front side; the two limiting plates are used to limit the iron plate on the front side; the through groove provided on the top of the plate sliding shell is used to insert the iron plate; and a hydraulic cylinder is fixedly installed on the two upper tension spring connecting plates.

[0012] Furthermore, the inlet and outlet liquid control part includes: an inlet and outlet mounting pipe, a sewage discharge hole, a drainage hole, a drainage inlet hole and a water inlet box, wherein the inlet and outlet mounting pipe is fixedly mounted on the electrolytic cell; the inlet and outlet mounting pipe is obliquely inserted through the electrolytic cell; a sewage discharge hole is opened on the upper lower side of the inlet and outlet mounting pipe; a drainage hole is opened on the lower lower side of the inlet and outlet mounting pipe; the drainage hole is located outside the electrolytic cell; the sewage discharge hole is located inside the electrolytic cell; a drainage inlet hole is opened on the upper lower side of the inlet and outlet mounting pipe; the drainage inlet hole is located inside the electrolytic cell; the water inlet box is fixedly mounted on the inlet and outlet mounting pipe; the water inlet box is used to inlet sewage.

[0013] Furthermore, the inlet and outlet liquid control unit also includes: a drainage motor, a discharge column and a discharge groove, the drainage motor is fixedly installed above the inlet and outlet mounting pipe; two discharge columns are fixedly installed on the output shaft of the drainage motor, and the two discharge columns are respectively sealed and sleeved inside the inlet and outlet mounting pipe; the two discharge columns are respectively provided with discharge grooves, and the volume of the upper discharge groove is larger than that of the lower discharge groove; the upper discharge groove corresponds to the sewage discharge hole and the water inlet box, and the lower discharge groove corresponds to the drainage hole and the drainage inlet hole; the upper discharge groove is used to take in sewage, and the lower discharge groove is used to discharge electrolytic treated water.

[0014] Compared with the prior art, the sewage treatment equipment of the present invention has the following beneficial effects:

[0015] The present invention adopts an inlet and outlet liquid control part, which can discharge the electrolytically treated water while taking in sewage through an inclined inlet and outlet installation pipe, and can be carried out simultaneously. A discharge column is arranged in the inlet and outlet installation pipe, so that the sealing of the present structure can be maintained during the process of taking in sewage and discharging water, and too much air will not enter. The oxygen sealing effect between the electrolytic cell of the present structure and the matching cover plate can be improved, the oxidation decomposition efficiency can be improved, the use cost can be reduced, and oxygen waste can be avoided.

[0016] In addition, a lifting baffle plate can be used to control the liquid level height. During the operation of the extrusion raised strip, the lifting baffle plate can automatically squeeze the lever to control the descent of the lifting baffle plate. By lowering the height of the lifting baffle plate, the floating oil is quickly discharged, which can ensure the efficiency of oxidation decomposition 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.

[0017] In addition, the use of the propulsion plate part can realize automatic propulsion of the iron plate to prevent its wear and tear from affecting the electrolysis effect. There is no need for tedious manual replacement each time, and the iron plate can be stored to improve the maintenance cycle. At the same time, the power connection device can keep the iron plate powered in real time to ensure continuous electrolysis work.

[0018] In addition, by using a driving limiter and an extruded raised strip, the oil in the petrochemical wastewater can be prevented from adhering to the surface of the iron plate and affecting its conductive properties. The frosted layer on the surface of the extruded raised strip can be used to scrape and grind the iron plate to prevent the surface rust layer from affecting the conductive effect. At the same time, the extruded raised strip can be used to rub the surface of the iron plate to help eliminate bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application;

[0023] Figure 2 A schematic diagram showing the bottom structure of the present application;

[0024] Figure 3 A cross-sectional view showing the internal structure of the present application;

[0025] Figure 4 A schematic diagram showing the internal structure of the electrolytic cell of the present application is shown;

[0026] Figure 5 A schematic diagram showing the structure of the electrolysis installation part of the present application is shown;

[0027] Figure 6 A schematic diagram showing the structure of the propulsion plate portion of the present application is shown;

[0028] Figure 7 This application shows Figure 3 A magnified view of the structure of the middle C region;

[0029] Figure 8 A schematic diagram showing the structure of the driving limiter of the present application is shown;

[0030] Fig. 9 A schematic diagram showing the lifting shielding member structure of the present application is shown;

[0031] Fig.10 A cross-sectional view of the structure of the recovery device of the present application is shown;

[0032] Fig.11 A schematic diagram showing the structure of the liquid inlet and outlet control unit of the present application is shown;

[0033] Fig.12 A cross-sectional view of the liquid inlet and outlet control structure of the present application is shown.

[0034] Description of reference numerals:

[0035] 1. Electrolysis installation part; 101. Electrolytic cell; 1011. Plate sliding shell; 1012. Sealing ring; 102. Cover plate; 1021. Inflatable pipe; 103. Drain pipe; 104. Limit plate; 2. Push plate part; 201. Plate push plate; 2011. Tension spring connecting plate; 202. Push spring; 203. Iron plate; 204. Hydraulic cylinder; 3. Power connection device; 301. Power connection sliding shaft; 302. Power connection block; 303. Power connection spring; 4. Drive limiter; 401. Drive roller; 4 011, driving motor; 402, transmission belt; 403, extrusion raised strip; 5, lifting shielding member; 501, lifting shielding plate; 502, tension spring; 503, lever; 6, recovery device; 601, collecting box; 6011, oil inlet; 602, oil drain pipe; 7, inlet and outlet liquid control unit; 701, inlet and outlet mounting pipe; 7011, sewage discharge hole; 7012, drain hole; 7013, drain inlet hole; 702, water inlet box; 703, drain motor; 704, discharge column; 7041, discharge trough. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figures 1 to 12 :

[0038] The present invention proposes a sewage treatment device for petrochemical production, comprising an electrolysis installation part 1, on which two propulsion plate parts 2 are installed; a power connection device 3 is installed on the electrolysis installation part 1; the two power connection devices 3 are used to connect the two propulsion plate parts 2 to a positive and negative DC power supply; the two propulsion plate parts 2 are used to electrify the sewage inside the electrolysis installation part 1; a driving limiter 4 is installed on the electrolysis installation part 1; the driving limiter 4 is used to limit the two propulsion plate parts 2; a lifting shielding member 5 is attached to the electrolysis installation part 1 ; The driving limit member 4 is used to squeeze the lifting shielding member 5; a recovery device 6 is installed on the electrolysis installation part 1; the recovery device 6 is used to recover oil pollution; the lifting shielding member 5 is attached to the recovery device 6; an inlet and outlet liquid control part 7 is installed on the electrolysis installation part 1; the inlet and outlet liquid control part 7 is used for simultaneous water intake and drainage; the electrolysis installation part 1 includes: an electrolytic cell 101 and a pole plate sliding shell 1011, and two pole plate sliding shells 1011 are fixedly installed on the electrolytic cell 101; the two pole plate sliding shells 1011 are respectively used to install two propulsion pole plate parts 2.

[0039] In the embodiment of the present invention, the electrolysis installation part 1 further includes: a sealing ring 1012, a cover plate 102, an air charging pipe 1021, a sewage pipe 103 and a limiting plate 104. Two sealing rings 1012 are fixedly installed on the electrolytic cell 101, and the two sealing rings 1012 are respectively aligned with the two plate sliding shells 1011; the cover plate 102 is fixedly installed on the electrolytic cell 101; the air charging pipe 1021 is fixedly installed on the cover plate 102; the air charging pipe 1021 is externally connected to the oxygen generator; through grooves are respectively provided on the tops of the two plate sliding shells 1011; a sewage pipe 103 is fixedly installed on 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 provided on the two limiting plates 104 The push plate portion 2 includes: a plate push plate 201, a tension spring connecting plate 2011, a push spring 202, an iron plate 203 and a hydraulic cylinder 204. The plate push plate 201 is slidably mounted inside the plate sliding shell 1011. Four tension spring connecting plates 2011 are fixedly mounted on the plate push plate 201, and the four tension spring connecting plates 2011 pass through the plate sliding shell 1011 respectively. Push springs 202 are fixedly mounted on the four tension spring connecting plates 2011 respectively. The ends of the four push springs 202 are respectively connected to the side of the electrolytic cell 101. A row of iron plates 203 are slidably sleeved inside the plate sliding shell 1011. The plate push plate 201 fits the iron plate 203 on the rear side. The sealing ring 1012 is sealed and sleeved with the iron plate 203 on the front side. 3; two limit plates 104 are used to limit the front iron pole plate 203; the through groove provided on the top of the pole plate sliding shell 1011 is used to insert the iron pole plate 203; the hydraulic cylinder 204 is fixedly installed on the two tension spring connecting plates 2011 above; the power connection device 3 includes: a power connection sliding shaft 301, a power connection block 302 and a power connection tension spring 303, and the power connection sliding shaft 301 is slidably installed on the sealing ring 1012; a 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 pole 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 externally connected to the power supply, and the pole plate part 2 is used to push the power connection sliding shaft 301 to realize automatic The iron plate 203 is pushed forward to prevent its loss from affecting the electrolysis effect when connected to the power supply, and the tedious manual replacement of the iron plate 203 is avoided each time. The iron plate 203 can be stored and the maintenance cycle can be improved. At the same time, the power connection device 3 of this structure can keep the iron plate 203 powered on in real time to ensure continuous electrolysis. The electrolytic cell 101 used in this structure cooperates with the cover plate 102 to achieve oxygen-assisted oxidation of pollutants. Oxidation and decomposition of pollutants in sewage can improve the quality of sewage treatment. The iron plate 203 is gradually worn out by rust and the friction of the extruded raised strip 403. Under the pull of the push-pull spring 202, the iron plate 203 can be kept at the bottom of the power connection block 302 in real time and powered on. At the same time, a row of iron plates 203 can also be automatically filled after being worn out.

[0040] In the embodiment of the present invention, the driving limiter 4 includes: a driving roller 401 and a driving motor 4011, wherein four driving rollers 401 are provided, and the four driving rollers 401 are rotatably mounted on the electrolytic cell 101 respectively; 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; the driving limiter 4 also includes: a transmission belt 402 and an extruded raised strip 403, wherein the transmission belt 402 is transmission-sleeved on the four driving rollers 401; a slot structure is provided on the transmission belt 402; a circle of extruded raised strips 403 are fixedly mounted on the outer side of the transmission belt 402; both sides of the circle of extruded raised strips 403 are inclined structures respectively; the transmission belt 402 is located on the outer sides of the two limiting plates 104; the extruded raised strips 403 are used to fit the limiting scraping iron plate 203, and the surface of the extruded raised strips 403 is provided with a frosted layer; the driving limiter is adopted 4. The extruded raised strips 403 can be used to prevent the oil in the petrochemical wastewater from adhering to the surface of the iron plate 203 and affecting the conductive performance of the iron plate 203. The frosted layer provided on the surface of the extruded raised strips 403 can be used to scrape and grind the iron plate 203 to prevent the surface rust layer from affecting the conductive effect. At the same time, the extruded raised strips 403 can be used to rub the surface of the iron plate 203 to assist in eliminating bubbles. The driving motor 4011 drives the driving roller 401 to drive the transmission belt 402 for transportation. During the process, under the limiting action of the limiting plate 104, the extruded raised strips 403 on both sides of the limiting plate 104 will rub against the surface of the iron plate 203. Part of the iron filings or rust generated can be precipitated and processed together in the subsequent sedimentation process without affecting the quality of sewage treatment. The extruded raised strips 403 can also be used to squeeze the roller on the lever 503 to control the descending height of the lifting shielding plate 501 to assist in discharging floating oil.

[0041] In the embodiment of the present invention, the lifting shielding member 5 includes: a lifting shielding plate 501, a tension spring 502 and a lever 503, the lifting shielding plate 501 is slidably fitted on the inner side of the electrolytic cell 101; two tension springs 502 are fixedly installed on the lifting shielding plate 501; two levers 503 are fixedly installed on the lifting shielding plate 501, and rollers are respectively provided on the two levers 503; the rollers on the two levers 503 are respectively attached to the outer side of the transmission belt 402; the extrusion protrusion strip 403 is used to squeeze the rollers on the lever 503; the lifting shielding 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; an oil inlet 6011 is opened on the collection box 601, and the oil inlet The bottom of the oil port 6011 is a sloped structure; the lifting baffle plate 501 is slidably fitted on the collecting box 601; the ends of the two tension springs 502 are respectively fixedly installed on the top of the collecting box 601; an oil drain pipe 602 is fixedly installed on the side of the collecting box 601, and a valve is provided on the oil drain pipe 602; the lifting baffle plate 501 is used to control the liquid level height. The lifting baffle plate 501 can automatically squeeze the lever 503 during the operation of the extrusion protrusion strip 403 to control the lifting baffle plate 501 to descend. By lowering the height of the lifting baffle plate 501, the floating oil is quickly discharged, which can ensure the oxidation decomposition efficiency of the 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 collecting box 601 is also convenient for directly receiving the floating oil for collection.

[0042] Embodiment 2, on the basis of embodiment 1, the inlet and outlet liquid control unit 7 comprises: an inlet and outlet installation pipe 701, a sewage discharge hole 7011, a drainage hole 7012, a drainage inlet hole 7013 and a water inlet box 702, the inlet and outlet installation pipe 701 is fixedly installed on the electrolytic cell 101; the inlet and outlet installation pipe 701 is obliquely inserted through the electrolytic cell 101; a sewage discharge hole 7011 is opened on the upper lower side of the inlet and outlet installation pipe 701; a drainage hole 7012 is opened on the lower lower side of the inlet and outlet installation pipe 701; the drainage hole 7012 is located outside the electrolytic cell 101; the sewage discharge hole 7011 is located inside the electrolytic cell 101; the drainage inlet hole 7013 is opened on the lower upper side of the inlet and outlet installation pipe 701 ; The drainage inlet hole 7013 is located inside the electrolytic cell 101; the water inlet box 702 is fixedly installed on the inlet and outlet installation pipe 701; the water inlet box 702 is used to inlet sewage; the inlet and outlet liquid control unit 7 also includes: a drainage motor 703, a discharge column 704 and a discharge groove 7041, the drainage motor 703 is fixedly installed above the inlet and outlet installation 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 and outlet installation pipe 701; the two discharge columns 704 are respectively provided with discharge grooves 7041, and the volume of the upper discharge groove 7041 is larger than that of the lower discharge groove 7041; the upper discharge groove 70 41 corresponds to the sewage discharge hole 7011 and the water inlet box 702, and the lower discharge groove 7041 corresponds to the drainage hole 7012 and the drainage inlet hole 7013; the upper discharge groove 7041 is used to inlet sewage, and the lower discharge groove 7041 is used to discharge electrolytically treated water. By using the inlet and outlet liquid control unit 7, the electrolytically treated water can be discharged while the sewage is inlet through the inclined inlet and outlet installation pipe 701, and the discharge column 704 is set in the inlet and outlet installation pipe 701. In the process of sewage inlet and water discharge, the sealing of the present structure can be maintained, and too much air will not enter, which can improve the oxygen sealing effect between the present electrolytic cell 101 and the matching cover plate 102 It can avoid the waste caused by the traditional aeration and oxygenation method that oxygen is directly emitted from the sewage and then directly dispersed into the air during water intake and drainage, which can reduce the cost of use and avoid oxygen waste. The volume of the upper discharge groove 7041 is larger than the lower discharge groove 7041, which can form a liquid difference between the water intake and discharge of sewage, so that the floating oil can be discharged smoothly when the lifting shielding member 5 is lowered. The upper discharge groove 7041 corresponds to the sewage discharge hole 7011 and the water inlet box 702, and the lower discharge groove 7041 corresponds to the drainage hole 7012 and the drainage inlet hole 7013. The structure is more reasonable, and no air will enter when water is intaken. Only sewage circulates, reducing oxygen loss.

[0043] The working principle of this embodiment is as follows: first, the sewage pipe is connected through the inflation pipe 1021, and sewage is poured into the electrolytic cell 101 to be level with the lifting shielding plate 501. There is no need to add water through the inflation pipe 1021 again later. The inflation pipe 1021 can be directly connected to the oxygen generator, and sewage is introduced into the water inlet box 702. The two power-connecting sliding shafts 301 are respectively connected to the positive and negative power supplies. Under the pull of the power-connecting tension spring 303, the power-connecting block 302 elastically fits the iron plate 203 to supply power; when the drainage motor 70 3 rotates, driving the discharge column 704 to rotate. At this time, the discharge slot 7041 on the upper discharge column 704 is filled with sewage in the water inlet box 702. As the discharge slot 7041 rotates, when it rotates to the side of the sewage discharge hole 7011, the sewage will be discharged to the electrolytic cell 101. At the same time, the lower discharge slot 7041 also rotates from the drainage inlet hole 7013 to the drainage hole 7012. Because the inlet and outlet installation pipe 701 is installed obliquely, the lower discharge slot 7041 passes through the drainage inlet hole 7011. 13 is filled with chemical wastewater after electrolysis. As the discharge column 704 rotates, the discharge slot 7041 below can discharge the chemical wastewater after electrolysis through the drainage hole 7012. As the actual use time increases, the iron plate 203 is gradually corroded and worn out, and the friction of the extrusion protrusion strip 403 is used. Under the pull of the push spring 202, the iron plate 203 can be kept at the bottom of the power receiving block 302 in real time, and the iron plate 203 also elastically fits the extrusion protrusion strip 403. As the front end of the iron plate 203 is pulled, the iron plate 203 is pressed against the protrusion strip 403. When the pole plate 203 is completely worn out, a row of iron pole plates 203 can be automatically filled after being worn out. With the help of the fixed limit plate 104, the iron pole plate 203 can be prevented from being pushed out and exposed too much to increase the loss. By starting the hydraulic cylinder 204, the output shaft of the hydraulic cylinder 204 is squeezed to the electrolytic cell 101, which can drive the pole plate pushing plate 201 to move backward, so that the iron pole plate 203 can be inserted through the through slot on the top of the pole plate sliding shell 1011. The structure is more reasonable, which is convenient for adding iron pole plates 203 in batches at one time.

[0044] The driving motor 4011 drives the driving roller 401 to drive the transmission belt 402 for transportation. During the process, under the limiting action of the limit plate 104, the extrusion protrusion strips 403 located on both sides of the limit plate 104 will rub against the surface of the iron pole plate 203. The extrusion protrusion strips 403 can be used to squeeze the rollers on the lever 503 at the same time to control the lowering height of the lifting baffle plate 501. The tension spring 502 can be used to automatically pull back and reset when the extrusion lever 503 is located between two adjacent extrusion protrusion strips 403. This structure can assist in discharging the floating oil floating on the top of the liquid surface and introduce it into the oil inlet 6011. The structure operates efficiently 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.

[0045] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for petrochemical production, comprising an electrolysis installation part (1), on which two propulsion plate parts (2) are installed; characterized in that: The electrolysis installation part (1) is provided with a power connection device (3); the two power connection devices (3) are used to connect the two propulsion plate parts (2) to a positive and negative DC power supply; the two propulsion plate parts (2) are used to energize the sewage inside the electrolysis installation part (1); A driving limiter (4) is installed on the electrolysis installation part (1); the driving limiter (4) is used to limit the two propulsion plate parts (2); The electrolysis installation part (1) is attached with a lifting shielding member (5); the driving limit member (4) is used to press the lifting shielding member (5); A recovery device (6) is installed on the electrolysis installation part (1); the recovery device (6) is used to recover oil pollution; the lifting shielding member (5) is attached to the recovery device (6); The electrolysis installation part (1) is provided with a liquid inlet and outlet control part (7); the liquid inlet and outlet control part (7) is used for simultaneously letting in water and draining water; The electrolysis installation part (1) comprises: an electrolytic cell (101) and a plate sliding shell (1011); two plate sliding shells (1011) are fixedly installed on the electrolytic cell (101); the two plate sliding shells (1011) are respectively used to install two propulsion plate parts (2); The electrolysis installation part (1) further comprises: a sealing ring (1012), a cover plate (102), an air charging pipe (1021), a sewage pipe (103) and a limit plate (104); two sealing rings (1012) are fixedly mounted on the electrolytic cell (101), and the two sealing rings (1012) are respectively aligned with the two plate sliding shells (1011); the electrolytic cell (101) is fixedly mounted with a cover plate (102); the air charging pipe (1021) is fixedly mounted on the cover plate (102); the air charging pipe (1021) is externally connected to an oxygen generator; through grooves are respectively provided on the tops of the two plate sliding shells (1011); a sewage pipe (103) is fixedly mounted on the bottom of the electrolytic cell (101), and a valve is provided on the sewage pipe (103); two limit plates (104) are fixedly mounted inside the electrolytic cell (101); two through grooves are respectively provided on the two limit plates (104); The propulsion pole plate portion (2) comprises: a pole plate propulsion plate (201), a tension spring connecting plate (2011), a propulsion tension spring (202), an iron pole plate (203) and a hydraulic cylinder (204); the pole plate propulsion plate (201) is slidably mounted inside a pole plate sliding shell (1011); four tension spring connecting plates (2011) are fixedly mounted on the pole plate propulsion plate (201), and the four tension spring connecting plates (2011) respectively pass through the pole plate sliding shell (1011); propulsion tension springs (202) are fixedly mounted on the four tension spring connecting plates (2011); the four propulsion tension springs ( 202) ends are respectively connected to the side of the electrolytic cell (101); a row of iron pole plates (203) are slidably sleeved inside the pole plate sliding shell (1011); the pole plate pushing plate (201) fits the iron pole plate (203) at the rear side; the sealing ring (1012) is sealingly sleeved to the iron pole plate (203) at the front side; the two limiting plates (104) are used to limit the iron pole plate (203) at the front side; the through groove provided on the top of the pole plate sliding shell (1011) is used to insert the iron pole plate (203); the hydraulic cylinder (204) is fixedly installed on the two tension spring connecting plates (211) above; The driving limiter (4) comprises: a driving roller (401) and a driving motor (4011); four driving rollers (401) are provided, and the four driving rollers (401) are rotatably mounted on the electrolytic cell (101) respectively; 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; The driving limiter (4) further comprises: a driving belt (402) and an extruded protrusion strip (403); the driving belt (402) is drivingly sleeved on four driving rollers (401); a slotted hole structure is provided on the driving belt (402); a circle of extruded protrusion strips (403) is fixedly mounted on the outer side of the driving belt (402); both sides of the circle of extruded protrusion strips (403) are inclined surface structures; the driving belt (402) is located on the outer sides of the two limiter plates (104); the extruded protrusion strips (403) are used to fit the limiter scraping iron pole plate (203), and a frosted layer is provided on the surface of the extruded protrusion strips (403); The inlet and outlet liquid control unit (7) comprises: an inlet and outlet installation pipe (701), a sewage discharge hole (7011), a drainage hole (7012), a drainage inlet hole (7013) and a water inlet box (702); the inlet and outlet installation pipe (701) is fixedly installed on the electrolytic cell (101); the inlet and outlet installation pipe (701) is obliquely arranged to penetrate the electrolytic cell (101); a sewage discharge hole (7011) is provided on the upper and lower sides of the inlet and outlet installation pipe (701); the lower side of the inlet and outlet installation pipe (701) is provided with a drainage hole (7013); A drainage hole (7012) is provided on the lower side; the drainage hole (7012) is located outside the electrolytic cell (101); the sewage discharge hole (7011) is located inside the electrolytic cell (101); a drainage inlet hole (7013) is provided on the upper side below the inlet and outlet installation pipe (701); the drainage inlet hole (7013) is located inside the electrolytic cell (101); the water inlet box (702) is fixedly mounted on the inlet and outlet installation pipe (701); the water inlet box (702) is used to take in sewage.

2. The wastewater treatment equipment for petrochemical production according to claim 1, characterized in that: The power connection device (3) comprises: 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 mounted on a sealing ring (1012); a power connection block (302) is fixedly mounted on the bottom of the power connection sliding shaft (301); the power connection block (302) is attached to an iron electrode plate (203); a 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); and the power connection sliding shaft (301) is externally connected to a power source.

3. The wastewater treatment equipment for petrochemical production according to claim 1, characterized in that: The lifting shielding member (5) comprises: a lifting shielding plate (501), a tension spring (502) and a lever (503); the lifting shielding plate (501) is slidably fitted on the inner side of the electrolytic cell (101); two tension springs (502) are fixedly mounted on the lifting shielding plate (501); two levers (503) are fixedly mounted on the lifting shielding plate (501), and rollers are respectively provided on the two levers (503); the rollers on the two levers (503) are respectively attached to the outer side of the transmission belt (402); the extrusion protrusion strip (403) is used to squeeze the rollers on the lever (503); the lifting shielding plate (501) is used to control the water level.

4. The wastewater treatment equipment for petrochemical production according to claim 3 is characterized in that: The recovery device (6) comprises: a collection box (601), an oil inlet (6011) and an oil drain pipe (602); the collection box (601) is fixedly mounted on the electrolytic cell (101); the collection box (601) passes through the electrolytic cell (101); an oil inlet (6011) is provided on the collection box (601), and the bottom of the oil inlet (6011) is an inclined structure; a lifting shielding plate (501) is slidably fitted on the collection box (601); the ends of the two tension springs (502) are respectively fixedly mounted on the top of the collection box (601); an oil drain pipe (602) is fixedly mounted on the side of the collection box (601), and a valve is provided on the oil drain pipe (602).

5. The wastewater treatment equipment for petrochemical production according to claim 1, characterized in that: The inlet and outlet liquid control unit (7) further comprises: a drainage motor (703), a discharge column (704) and a discharge trough (7041); the drainage motor (703) is fixedly mounted above the inlet and outlet mounting tube (701); two discharge columns (704) are fixedly mounted on the output shaft of the drainage motor (703), and the two discharge columns (704) are respectively sealed and sleeved inside the inlet and outlet mounting tube (701); the two discharge columns (704) are respectively provided with a discharge trough (7041), 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 drainage hole (7012) and the drainage inlet hole (7013); the upper discharge trough (7041) is used to take in sewage, and the lower discharge trough (7041) is used to discharge electrolytically treated water.

Images