CN113461207A

CN113461207A - Oil field fracturing flow-back liquid sewage purification treatment device

Info

Publication number: CN113461207A
Application number: CN202110777938.4A
Authority: CN
Inventors: 李瑞然
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-10-01

Abstract

The invention provides a sewage purification treatment device for oilfield fracturing flowback fluid, which comprises a treatment tank and a central rotating shaft, the two sides of the central rotating shaft are fixedly embedded with electric push rods, the output shafts of the electric push rods are fixedly provided with round edge fixing seats, the oilfield fracturing flow-back liquid sewage purification treatment device has reasonable design, a central rotating shaft in a treatment tank is provided with a round edge fixing seat through an electric push rod, the round edge fixing seat is provided with an arc elastic rubber pressing plate and an arc scraping plate with certain flexibility, when the central rotating shaft rotates clockwise, the arc scraper blade firstly scrapes off attachments on the inner wall of the filter cylinder, then the arc-shaped elastic rubber pressure plate extrudes the backflow liquid between the arc-shaped elastic rubber pressure plate and the filter cylinder, water is extruded to penetrate through the filter cylinder and enter the annular water tank, therefore, the backflow liquid can be efficiently filtered all the time, the filtering efficiency and effect can be effectively improved, and the efficiency of sewage purification treatment of the backflow liquid is further improved.

Description

Oil field fracturing flow-back liquid sewage purification treatment device

Technical Field

The invention belongs to the technical field of oil field fracturing flow-back fluid treatment equipment, and particularly relates to a sewage purification treatment device for oil field fracturing flow-back fluid.

Background

The flowback liquid pollutant generated in the oil field fracturing process has complex components, high concentration, high viscosity and great processing difficulty, so that one of the sewage which is difficult to process in the oil field, if the sewage is not directly discharged, the subsequent process can be seriously interfered, the oil field production is seriously influenced, equipment is blocked, the environmental protection does not reach the standard, and the like, the sewage is generally treated by adopting the processes of chemical oxidation, flocculation precipitation and filtration treatment, but when the existing oil field fracturing flow-back liquid sewage purification treatment device is used for filtering, because of the factors of poor fluidity of the flowback liquid, incomplete oxidation gel breaking, poor dirty oil treatment effect and the like, more impurities are often adhered to the filter screen of the filter, and the filtering effect is continuously reduced, so that the filter is blocked, and the final sewage treatment efficiency and treatment capacity are influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an oilfield fracturing flow-back fluid sewage purification treatment device which is reasonable in design, a central rotating shaft in a treatment tank is provided with a round edge fixing seat through an electric push rod, the round edge fixing seat is provided with an arc elastic rubber pressing plate and an arc scraping plate with certain flexibility, when the central rotating shaft rotates clockwise, the arc scraping plate firstly scrapes attachments on the inner wall of a filter cylinder, then the arc elastic rubber pressing plate extrudes flow-back fluid between the arc elastic rubber pressing plate and the filter cylinder, and water is extruded to penetrate through the filter cylinder and enter an annular water tank, so that the flow-back fluid can be filtered efficiently all the time, the filtering efficiency and effect can be effectively improved, and the efficiency of sewage purification treatment of the flow-back fluid is improved.

In order to achieve the purpose, the invention is realized by the following technical scheme: a sewage purification treatment device for oil field fracturing flow-back fluid comprises a treatment tank and a central rotating shaft, wherein electric push rods are fixedly inlaid at two sides of the central rotating shaft, a round edge fixing seat is fixedly mounted on an output shaft of each electric push rod, an arc elastic rubber pressing plate is fixedly mounted at the rear side of each round edge fixing seat, a fixing rod is fixedly inlaid at one side of each round edge fixing seat, a spring groove is formed in one end of each fixing rod, a buffer spring is fixedly connected to the inner side wall, away from the opening end, of each spring groove, one end of each telescopic rod penetrates through the opening end of each spring groove and is fixedly connected with the corresponding buffer spring, an arc scraper is fixedly mounted at the other end of each telescopic rod, a motor groove is formed in the central position of the bottom of the treatment tank, a seal bearing is fixedly inlaid in the opening end of each motor groove, and the bottom of the central rotating shaft is fixedly mounted in the seal bearing, the utility model discloses a processing tank, including processing tank, motor inslot fixed mounting has the low-speed motor, the output shaft and the central pivot fixed connection of low-speed motor, the spacing groove has been seted up with the position department that central pivot corresponds on the inside wall at processing tank top portion, the spacing groove cover is established at the top of central pivot, storage air cavity has been seted up in the central pivot, fixed mounting has the booster pump in the storage air cavity, be provided with intake pipe and outlet duct on the booster pump, annular basin has been seted up to the interior limit side of processing tank, fixed mounting has a section of thick bamboo in the annular basin, the interior limit side of straining a section of thick bamboo is being laminated to the arc scraper blade, the bottom fixedly connected with drain pipe of processing tank, drain pipe and annular basin intercommunication, install electric valve on the drain pipe.

As a preferred embodiment of the present invention, a through hole is formed at one side of the top of the central rotating shaft, and one end of the air outlet pipe is fixedly installed in the through hole.

As a preferred embodiment of the invention, the bottom of the treatment tank is fixedly connected with a sewage discharge pipe, one end of the sewage discharge pipe is provided with a blocking cover through matching of external threads and internal threads, the top of the blocking cover is fixedly provided with a blocking plug, and the blocking plug is positioned in the sewage discharge pipe.

As a preferred embodiment of the present invention, one side of the processing tank is fixedly connected with a power line, one end of the power line is connected with a plug, an electric brush is embedded in the limiting groove, a control panel is fixedly installed on the front side of the processing tank, a processor is installed in the control panel, an operation button is installed on the control panel, the power line is electrically connected with the processor, the operation button, the low-speed motor, the electric valve and the electric brush, the processor is electrically connected with the operation button, the low-speed motor, the electric valve and the electric brush respectively, and the electric brush is electrically connected with the electric push rod and the booster pump.

In a preferred embodiment of the present invention, an addition pipe is fixedly connected to the top of the treatment tank, and a sealing cap is mounted on the top of the addition pipe through matching of external threads and internal threads.

In a preferred embodiment of the present invention, a plurality of support legs are fixedly mounted on the outer side of the bottom of the treatment tank.

As a preferred embodiment of the present invention, the number of the round edge fixing seat, the number of the arc-shaped elastic rubber pressing plate and the number of the arc-shaped scraping plates are 2.

The invention has the beneficial effects that: the invention discloses a sewage purification treatment device for oilfield fracturing flowback fluid, which comprises a treatment tank, a central rotating shaft, an electric push rod, a round edge fixing seat, an arc-shaped elastic rubber pressing plate, a fixing rod, a spring groove, a buffer spring, a telescopic rod, an arc-shaped scraper, an annular water tank, a filter cylinder, a motor groove, a sealing bearing, a low-speed motor, a storage air cavity, a booster pump, an air inlet pipe, an air outlet pipe, a one-way valve, a limiting groove, an electric brush, a blow-off pipe, a drain pipe, a sealing cover, a sealing plug, an electric valve, an adding pipe, a sealing cover, a control panel, a power line and a supporting leg.

1. This flowing back waste water purification treatment device is returned in oil field fracturing's treatment tank's central pivot has installed the round limit fixing base through electric putter in, arc elasticity rubber clamp plate and the arc scraper blade that has certain elasticity have been installed on the round limit fixing base, when central pivot clockwise rotation, the attachment on the inner wall of straining a section of thick bamboo is scraped at first to the arc scraper blade, the part that makes strain a section of thick bamboo is in the exposed state, then arc elasticity rubber clamp plate extrudees its and strain a section of thick bamboo between return the flowing back, pass a section of thick bamboo and get into annular basin with the water extrusion, thereby can filter the flowing back always high-efficiently, filterable efficiency and effect can be improved effectively, and then the efficiency of returning the waste water purification treatment of flowing back.

2. This flowing back sewage purification unit's is returned to oil field fracturing arc elasticity rubber clamp plate has certain elastic buffering, when the flowing back is returned in the extrusion of arc elasticity rubber clamp plate, if impurity will correspond the section of thick bamboo of department and block up, then certain elastic deformation can inwards take place for arc elasticity rubber clamp plate to make the rotation that arc elasticity rubber clamp plate can be smooth, and prevent to strain a section of thick bamboo simultaneously and warp the damage, improve life.

3. This flowing back liquid sewage purification unit's booster pump is returned to oil field fracturing can be for straining the space pressure boost between section of thick bamboo and the central pivot, on the one hand, can further improve filterable efficiency, on the other hand, can be favorable to improving the exhaust efficiency of filter residue, and, can adjust arc elasticity rubber clamp plate and strain the distance between the section of thick bamboo as required, thereby improve the adaptability to returning the flowing back, and simultaneously, the telescopic link on the arc scraper blade can contract and get into spring groove partly, thereby can be adapted to the regulation of arc elasticity rubber clamp plate, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic structural diagram of a sewage purification treatment device for oil field fracturing flow-back fluid according to the present invention;

FIG. 2 is a schematic cross-sectional view of an oil field fracturing flow-back fluid sewage purification treatment device according to the present invention;

FIG. 3 is a schematic cross-sectional view of an oilfield fracturing flow-back fluid sewage purification treatment device according to the present invention;

FIG. 4 is a schematic structural view of an arc-shaped elastic rubber pressing plate of the oil field fracturing flow-back fluid sewage purification treatment device of the invention;

FIG. 5 is a schematic view of the installation of an arc scraper of the oil field fracturing flow-back fluid sewage purification treatment device of the invention;

in the figure: 1. a treatment tank; 2. a central rotating shaft; 3. an electric push rod; 4. a round edge fixing seat; 5. an arc-shaped elastic rubber pressing plate; 6. fixing the rod; 7. a spring slot; 8. a buffer spring; 9. a telescopic rod; 10. an arc-shaped scraper plate; 11. an annular water tank; 12. a filter cartridge; 13. a motor slot; 14. sealing the bearing; 15. a low-speed motor; 16. a storage air cavity; 17. a booster pump; 18. an air inlet pipe; 19. an air outlet pipe; 20. a one-way valve; 21. a limiting groove; 22. an electric brush; 23. a blow-off pipe; 24. a drain pipe; 25. a blocking cover; 26. blocking; 27. an electrically operated valve; 28. an addition pipe; 29. a sealing cover; 30. a control panel; 31. a power line; 32. and (5) supporting legs.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a sewage purification treatment device for oil field fracturing flow-back fluid comprises a treatment tank 1 and a central rotating shaft 2, wherein both sides of the central rotating shaft 2 are fixedly inlaid with electric push rods 3, a round edge fixing seat 4 is fixedly installed on an output shaft of the electric push rods 3, an arc elastic rubber pressing plate 5 is fixedly installed on the rear side of the round edge fixing seat 4, a fixing rod 6 is fixedly inlaid on one side of the round edge fixing seat 4, one end of the fixing rod 6 is provided with a spring groove 7, the inner side wall, away from the opening end, of the spring groove 7 is fixedly connected with a buffer spring 8, one end of a telescopic rod 9 penetrates through the opening end of the spring groove 7 and is fixedly connected with the buffer spring 8, the other end of the telescopic rod 9 is fixedly provided with an arc scraper 10, a motor groove 13 is arranged at the central position of the bottom of the treatment tank 1, and a sealing bearing 14 is fixedly inlaid at the opening end of the motor groove 13, the bottom of the central rotating shaft 2 is fixedly arranged in a sealing bearing 14, a low-speed motor 15 is fixedly arranged in the motor groove 13, the output shaft of the low-speed motor 15 is fixedly connected with the central rotating shaft 2, a position on the inner side wall of the top of the treatment tank 1 corresponding to the central rotating shaft 2 is provided with a limit groove 21, the limiting groove 21 is sleeved on the top of the central rotating shaft 2, a storage air cavity 16 is arranged in the central rotating shaft 2, a booster pump 17 is fixedly arranged in the storage gas cavity 16, an air inlet pipe 18 and an air outlet pipe 19 are arranged on the booster pump 17, an annular water tank 11 is arranged on the inner side of the treatment tank 1, a filter cartridge 12 is fixedly arranged in the annular water tank 11, the arc scraper 10 is attached to the inner side of the filter cylinder 12, the bottom of the treatment tank 1 is fixedly connected with a drain pipe 24, the water discharge pipe 24 is communicated with the annular water tank 11, and an electric valve 27 is arranged on the water discharge pipe 24.

As a preferred embodiment of the present invention, a through hole is formed at one side of the top of the central rotating shaft 2, one end of the air outlet pipe 19 is fixedly installed in the through hole, and the booster pump can boost the space between the filter cartridge 12 and the central rotating shaft 2 through the air outlet pipe 19, so that on one hand, the filtering efficiency can be improved, and on the other hand, the efficiency of discharging the filter residue can be improved.

As a preferred embodiment of the invention, the bottom of the treatment tank 1 is fixedly connected with a drain pipe 23, one end of the drain pipe 23 is provided with a blocking cover 25 through matching of external threads and internal threads, the top of the blocking cover 25 is fixedly provided with a blocking plug 26, the blocking plug 26 is positioned in the drain pipe 23, after filtration is finished, the blocking cover 25 and the blocking plug 26 are taken down, and filter residues are discharged through the drain pipe 23.

As a preferred embodiment of the present invention, a power line 31 is fixedly connected to one side of the processing tank 1, one end of the power line 31 is connected to a plug, an electric brush 22 is embedded in the limiting groove 21, a control panel 30 is fixedly installed at the front side of the processing tank 1, a processor is installed in the control panel 30, an operation button is installed on the control panel 30, the power line 31 is electrically connected to the processor, the operation button, the low-speed motor 15, the electric valve 27 and the electric brush 22, the processor is electrically connected to the operation button, the low-speed motor 15, the electric valve 27 and the electric brush 22, and the electric brush 22 is electrically connected to the electric push rod 3 and the booster pump 17.

In a preferred embodiment of the present invention, an addition pipe 28 is fixedly connected to the top of the treatment tank 1, a sealing cap 29 is mounted on the top of the addition pipe 28 by matching external threads and internal threads, and the addition pipe 28 is used for adding flowback fluid and chemical reagents.

In a preferred embodiment of the present invention, a plurality of support legs 20 are fixedly installed on the outer side of the bottom of the treatment tank 1.

In a preferred embodiment of the present invention, the number of the round edge fixing seat 4, the arc-shaped elastic rubber pressing plate 5 and the arc-shaped scraper 10 is 2.

As a preferred embodiment of the invention, when in use, the power cord 31 is connected to an external power supply through a plug, the sealing cover 29 is opened, the return fluid and the chemical reagent are added into the treatment tank 1 through the adding pipe 28, the sealing cover 29 is covered, the return fluid and the chemical reagent enter the space between the filter cartridge 12 and the central rotating shaft 2, after a certain time of reaction, a filtering instruction is input through operating a key, the processor controls the low-speed motor 15 to work, the low-speed motor 15 drives the central rotating shaft 2 to rotate, the central rotating shaft 2 drives the round edge fixing seat 4 and the arc-shaped elastic rubber pressing plate 5 to rotate clockwise through the electric push rod 3, meanwhile, the round edge fixing seat 4 is matched with the telescopic rod 9 through the fixed rod 6 to drive the arc-shaped scraping plate 10 to be attached to the inner side of the filter cartridge 12 to do circular motion, the arc-shaped scraping plate 10 firstly scrapes off attachments on the inner wall of the filter cartridge 12, so that part of the filter cartridge 12 is in an exposed state, then the arc elastic rubber pressing plate 5 extrudes the return liquid between the arc elastic rubber pressing plate and the filter cylinder 12, water is extruded to penetrate through the filter cylinder 12 and enter the annular water tank 11, so that the return liquid can be filtered efficiently all the time, the filtering efficiency and effect can be effectively improved, and further the sewage purification treatment efficiency of the return liquid is improved, meanwhile, the processor controls the booster pump 17 to start, the booster pump 17 conveys air to the space between the filter cylinder 12 and the central rotating shaft 2 through the air outlet pipe 19, the filtering speed is improved, the arc elastic rubber pressing plate 5 has certain elastic buffering, when the arc elastic rubber pressing plate 5 extrudes the return liquid, if impurities block the filter cylinder 12 at the corresponding position, the arc elastic rubber pressing plate 5 can generate certain elastic deformation inwards, so that the arc elastic rubber pressing plate 5 can smoothly rotate, meanwhile, the filter cylinder 12 is prevented from being deformed and damaged, and the service life is prolonged, after a certain time, the blocking cover 25 and the blocking plug 26 are taken down, a discharge instruction is input through the operation key, the electric valve 27 on the water discharge pipe 24 is controlled by the processor to be opened, the filtrate is discharged through the water discharge pipe 24, and the filter residue is discharged through the sewage discharge pipe 23.

As a preferred embodiment of the present invention, the distance between the arc-shaped elastic rubber pressing plate 5 and the filter cartridge 12 can be adjusted by the electric push rod 3, the closer the arc-shaped elastic rubber pressing plate 5 and the filter cartridge 12 to the backflow liquid, the higher the pressure to the backflow liquid, the more dilute backflow liquid is adapted to, and vice versa, so as to improve the adaptability to the backflow liquid, and meanwhile, the telescopic rod 9 on the arc-shaped scraper 10 can be retracted into a part of the spring groove 7, so as to be adapted to the adjustment of the arc-shaped elastic rubber pressing plate 5, and the practicability is strong.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an oil field fracturing flow-back liquid sewage purification treatment device, includes treatment tank (1) and center pivot (2), its characterized in that, the both sides of center pivot (2) are all fixed to be inlayed and are had electric putter (3), fixed mounting has round edge fixing base (4) on electric putter's (3) output shaft, the rear side fixed mounting of round edge fixing base (4) has arc elasticity rubber pressing plate (5), one side fixed the inlaying of round edge fixing base (4) has dead lever (6), spring groove (7) have been seted up to the one end of dead lever (6), fixedly connected with buffer spring (8) on the inside wall that spring groove (7) kept away from the open end, the one end of telescopic link (9) passes the open end of spring groove (7) and with buffer spring (8) fixed connection, the other end fixed mounting of telescopic link (9) has arc scraper blade (10), the central point of processing jar (1) bottom puts the department and has seted up motor groove (13), the fixed seal bearing (14) of inlaying of open end of motor groove (13), the bottom fixed mounting of center pivot (2) is in seal bearing (14), fixed mounting has low-speed motor (15) in motor groove (13), the output shaft and center pivot (2) fixed connection of low-speed motor (15), spacing groove (21) have been seted up with the position department that center pivot (2) corresponds on the inside wall at processing jar (1) top, spacing groove (21) cover is established at the top of center pivot (2), set up storage air cavity (16) in center pivot (2), fixed mounting has booster pump (17) in storage air cavity (16), be provided with intake pipe (18) and outlet duct (19) on booster pump (17), the interior limit of processing jar (1) side is opened and is equipped with annular basin (11), annular basin (11) internal fixed mounting has a section of thick bamboo (12), arc scraper blade (10) laminating is being strained the interior limit side of a section of thick bamboo (12), the bottom fixedly connected with drain pipe (24) of processing jar (1), drain pipe (24) and annular basin (11) intercommunication, install electrically operated valve (27) on drain pipe (24).

2. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: a through hole is formed in one side of the top of the central rotating shaft (2), and one end of the air outlet pipe (19) is fixedly installed in the through hole.

3. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: the bottom fixedly connected with blow off pipe (23) of processing jar (1), blocking lid (25) are installed through external screw thread and interior screw-thread fit to the one end of blow off pipe (23), the top fixed mounting of blocking lid (25) has shutoff stopper (26), shutoff stopper (26) are in blow off pipe (23).

4. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: handle one side fixedly connected with power cord (31) of jar (1), the one end of power cord (31) is connected with the plug, it has brush (22) to inlay in spacing groove (21), the front side fixed mounting who handles jar (1) has control panel (30), control panel (30) embeds there is the treater, install the operation button on control panel (30), power cord (31) and treater, operation button, low-speed motor (15), electric valve (27) and brush (22) electric connection, the treater respectively with operation button, low-speed motor (15), electric valve (27) and brush (22) electric connection, brush (22) and electric putter (3) and booster pump (17) electric connection.

5. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: the top fixedly connected with of processing jar (1) adds pipe (28), add the top of pipe (28) and install sealed lid (29) through external screw thread and internal thread cooperation.

6. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: and a plurality of supporting legs (20) are fixedly arranged on the outer side of the bottom of the treatment tank (1).

7. The oil field fracturing flow-back fluid sewage purification treatment device of claim 1, which is characterized in that: the number of the round edge fixing seat (4), the number of the arc-shaped elastic rubber pressing plates (5) and the number of the arc-shaped scrapers (10) are all 2.