Vehicle-mounted oil field sewage purification equipment

Abstract

The utility model discloses vehicle-mounted oilfield sewage purification equipment which comprises a frame assembly, a pre-sedimentation tank is arranged on the frame assembly, a reaction sedimentation tank is arranged on one side of the pre-sedimentation tank, the reaction sedimentation tank is communicated with the pre-sedimentation tank through an open channel groove, a clear liquid outlet is formed in the side part of the reaction sedimentation tank, and a clear liquid outlet is formed in the side part of the clear liquid outlet. The utility model relates to the technical field of oil field sewage purification, sewage in the reaction sedimentation tank is aerated through the aeration mechanism, suspended matters in the tank are effectively promoted to move upwards, the contact between organic matters in the tank and microorganisms and dissolved oxygen is enhanced, and the sewage treatment effect is improved. According to the sewage treatment device, organic matters in the sewage are oxidized and decomposed, scum is scraped into a scum collecting tank through a scum cleaning mechanism, and supernate in the reaction sedimentation tank is further pumped out through a booster pump, pressurized and then injected into a backwashing bag type filter, so that fine particles and suspended matters in the sewage are effectively filtered out.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield sewage purification technical field, concretely is a kind of vehicle-mounted oilfield sewage purification equipment. BACKGROUND

[0002] In recent years, with the continuous development of oil and gas fields worldwide, new attempts and breakthroughs have been made in oil and gas field produced water treatment technology. Oil well water filtration and separation reinjection technology is increasingly valued by the oil and gas industry. The oil well exploitation technology of "oil and gas water mixed production-ground separation-sewage treatment-sewage reinjection process" is widely used. Traditional oilfield sewage purification requires multiple ground equipment, large investment, high management cost, and relatively complex pipeline layout, making it inconvenient to move and less mobile. Chinese patent application No. CN206266337U discloses a vehicle-mounted oilfield sewage reinjection treatment equipment, which integrates a buffer chamber and a cyclone on a vehicle body. The sewage is subjected to two-step sedimentation in the buffer chamber and the cyclone, effectively precipitating large particles and reducing the working load of the reinjection pump. This reduces the difficulty of sewage treatment before reinjection and simplifies the treatment process. However, the device is relatively simple in design and can only remove some large particles from the sewage. Suspended solids and oil impurities cannot be effectively removed, and the practicality is poor. Therefore, in view of the above problems, the present case is produced. SUMMARY

[0003] To overcome the shortcomings of the prior art, the utility model provides a vehicle-mounted oilfield sewage purification equipment, which solves the problems raised in the background art.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a vehicle-mounted oilfield sewage purification equipment, comprising a vehicle frame assembly, a presedimentation tank is arranged on the vehicle frame assembly, a reaction sedimentation tank is arranged on one side of the presedimentation tank, the reaction sedimentation tank and the presedimentation tank are connected in communication through an open channel groove, a clear liquid discharge port is arranged on the side of the reaction sedimentation tank, a backwashing bag filter is connected to the clear liquid discharge port through a booster pump at one end, the outlet of the backwashing bag filter is connected to a reinjection pump, a scum cleaning mechanism is arranged on the top of the reaction sedimentation tank and the presedimentation tank, a scum collection tank is arranged on one side of the reaction sedimentation tank, a dosing mechanism is symmetrically arranged on both sides of the presedimentation tank, an impact stirring assembly is arranged in the presedimentation tank along the horizontal direction, a driving mechanism is connected to the exposed end of the impact stirring assembly, an aeration mechanism is arranged on the side of the reaction sedimentation tank, one end of the aeration mechanism extends into the reaction sedimentation tank, and a blower is connected to the exposed end of the aeration mechanism.

[0005] The floating sludge cleaning mechanism comprises a horizontal truss arranged on the frame assembly, which is located above the pre-sedimentation tank and the reaction sedimentation tank, and is provided with a moving adjusting structure, and the lower part of the moving end of the moving adjusting structure is provided with a lifting adjusting assembly, and the moving end of the lifting adjusting assembly is provided with a scraper.

[0006] The moving adjusting structure comprises a servo drive, a power groove wheel, a supporting groove wheel, a steel wire rope sleeve, a guide limiting piece and a moving seat, the servo drive is arranged at one end of the horizontal truss, the power groove wheel is fixedly sleeved on the output end of the servo drive, the supporting groove wheel is rotationally arranged on the horizontal truss and symmetrically arranged with the power groove wheel, the two ends of the steel wire rope sleeve are respectively sleeved in the power groove wheel and the supporting groove wheel, the guide limiting piece is arranged on the lower end surface of the horizontal truss, and the upper part of the moving seat is fixedly connected with the steel wire rope sleeve and the lower part is connected with the moving end of the guide limiting piece.

[0007] The guide limiting piece comprises a guide rail and a sliding block, the guide rail is symmetrically arranged on the lower end surface of the horizontal truss, and the sliding block is slidingly sleeved on the guide rail and connected with the moving seat.

[0008] The lifting adjusting assembly comprises a cylinder, a guide column and a guide sleeve, the cylinder is arranged on the lower end of the moving seat in the vertical direction and connected with the scraper at the telescopic end, the guide column is symmetrically arranged on the lower end of the moving seat, and the guide sleeve is slidingly sleeved on the guide column and connected with the scraper.

[0009] The impact stirring assembly comprises a stirring shaft and a stirring paddle, the stirring shaft is rotationally arranged in the pre-sedimentation tank and connected with the driving mechanism at one end, and the stirring paddle is fixedly sleeved on the stirring shaft.

[0010] The utility model provides a kind of vehicle-mounted oilfield sewage purification equipment.It has the following beneficial effects: the vehicle-mounted oilfield sewage purification equipment is integrated with pre-sedimentation tank, reaction sedimentation tank and backwashing bag filter on frame assembly, water from oil well first enters into pre-sedimentation tank, pre-sedimentation is carried out, in this process, flocculating agent is added by dosing mechanism, and rotary is driven by driving mechanism Impact stirring assembly, to accelerate the dissolution of flocculating agent, so that large particle impurities and suspended solids are precipitated in the lower part of pre-sedimentation tank, and oil in sewage floats to the upper part of pre-sedimentation tank and reaction sedimentation tank, the sewage in pre-sedimentation tank further enters into reaction sedimentation tank through open channel groove, the sewage in reaction sedimentation tank is aerated by aeration mechanism, the sewage in the tank is contacted with air to be oxygenated, and the liquid is stirred, to accelerate the transfer of oxygen in air to liquid, effectively promote the upward movement of suspended solids in the tank, strengthen the contact of organic matter in the tank with microorganisms and dissolved oxygen, oxidize and decompose organic matter in sewage, and the dregs on the upper part of pre-sedimentation tank and reaction sedimentation tank are scraped into dregs collection tank by dregs cleaning mechanism, and the supernatant in reaction sedimentation tank is further extracted by booster pump and injected into backwashing bag filter after being pressurized, to effectively filter out small particles and suspended solids in sewage, greatly improve the quality of sewage purification treatment, and meet the requirements of reinjection operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a front view structural schematic diagram of the vehicle-mounted oilfield sewage purification equipment.

[0012] Fig. 2 It is a partial sectional view structural schematic diagram of the vehicle-mounted oilfield sewage purification equipment.

[0013] Fig. 3 It is a side view structural schematic diagram of the dregs cleaning mechanism.

[0014] In the figure: 1, frame assembly; 2, pre-sedimentation tank; 3, reaction sedimentation tank; 4, open channel groove; 5, clear liquid discharge port; 6, booster pump; 7, backwashing bag filter; 8, reinjection pump; 9, dregs collection tank; 10, dosing mechanism; 11, aeration mechanism; 12, air blower; 13, horizontal truss; 14, scraper; 15, servo drive; 16, power groove wheel; 17, support groove wheel; 18, steel wire rope sleeve; 19, moving seat; 20, guide rail; 21, sliding block; 22, air cylinder; 23, guide column; 24, guide sleeve; 25, stirring shaft; 26, stirring paddle plate. DETAILED DESCRIPTION

[0015] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0016] Embodiment: combined with the description of the drawings Figs. 1-3 It can be known that the present application specifically designs a vehicle-mounted oilfield sewage purification equipment, which comprises a vehicle frame assembly 1, a pre-sedimentation tank 2 is arranged on the vehicle frame assembly 1, a reaction sedimentation tank 3 is arranged on one side of the pre-sedimentation tank 2, the reaction sedimentation tank 3 and the pre-sedimentation tank 2 are connected in communication through an open channel groove 4, a clear liquid discharge port 5 is arranged on the side of the reaction sedimentation tank 3, one end of the clear liquid discharge port 5 is connected with a backwashing bag filter 7 through a booster pump 6, the outlet of the backwashing bag filter 7 is connected with a reinjection pump 8, a scum cleaning mechanism is arranged on the top of the reaction sedimentation tank 3 and the pre-sedimentation tank 2, a scum collecting groove 9 is arranged on one side of the reaction sedimentation tank 3, a dosing mechanism 10 is symmetrically arranged on both sides of the pre-sedimentation tank 2, an impact stirring assembly is arranged in the pre-sedimentation tank 2 along the horizontal direction, a driving mechanism is connected with the exposed end of the impact stirring assembly, the impact stirring assembly comprises a stirring shaft 25 and a stirring paddle plate 26, the stirring shaft 25 is rotatably arranged in the pre-sedimentation tank 2 and one end thereof is connected with the driving mechanism, the stirring paddle plate 26 is fixedly sleeved on the stirring shaft 25, an aeration mechanism 11 is arranged on the side of the reaction sedimentation tank 3, one end of the aeration mechanism 11 extends into the reaction sedimentation tank 3, the exposed end of the aeration mechanism 11 is connected with a blower 12, the pre-sedimentation tank 2, the reaction sedimentation tank 3 and the backwashing bag filter 7 are integrally installed on the vehicle frame assembly 1, the water outlet of an oil well first enters into the pre-sedimentation tank 2 to carry out pre-sedimentation, in this process, the flocculating agent is added through the dosing mechanism 10, and the impact stirring assembly is driven to rotate by the driving mechanism, so as to accelerate the dissolution of the flocculating agent, so that the large-particle impurities and suspended matters are coagulated and precipitated below the pre-sedimentation tank 2, and the oil in the sewage floats to the upper part of the pre-sedimentation tank 2 and the reaction sedimentation tank 3, the sewage in the pre-sedimentation tank 2 further enters into the reaction sedimentation tank 3 through the open channel groove 4, the sewage in the reaction sedimentation tank 3 is aerated through the aeration mechanism 11, so that the sewage in the tank contacts with air to be oxygenated, and the liquid is stirred to accelerate the transfer of oxygen in the air to the liquid, effectively promotes the upward movement of the suspended matters in the tank, strengthens the contact of the organic matters in the tank with the microorganisms and dissolved oxygen, and oxidizes and decomposes the organic matters in the sewage, the scum on the upper part of the pre-sedimentation tank 2 and the reaction sedimentation tank 3 is scraped into the scum collecting groove 9 through the scum cleaning mechanism, and the supernatant in the reaction sedimentation tank 3 is further extracted and pressurized through the booster pump 6 and then injected into the backwashing bag filter 7, so as to effectively filter out the small particles and suspended matters in the sewage, greatly improves the sewage purification treatment quality, and meets the reinjection operation requirements.

[0017] In the implementation process, the floating sludge cleaning mechanism includes a horizontal truss 13 arranged on the frame assembly 1, the horizontal truss 13 is located above the pre-sedimentation tank 2 and the reaction sedimentation tank 3, and a moving adjusting structure is arranged on the horizontal truss 13. A lifting adjusting assembly is arranged at the lower part of the moving end of the moving adjusting structure, and a scraper 14 is arranged at the moving end of the lifting adjusting assembly. The moving adjusting structure includes a servo drive 15, a power groove wheel 16, a supporting groove wheel 17, a steel wire rope sleeve 18, a guide limiting piece, and a moving seat 19. The servo drive 15 is arranged at one end of the horizontal truss 13, the power groove wheel 16 is fixedly sleeved on the output end of the servo drive 15, the supporting groove wheel 17 is rotatably arranged on the horizontal truss 13 and symmetrically arranged with the power groove wheel 16, the two ends of the steel wire rope sleeve 18 are sleeved in the power groove wheel 16 and the supporting groove wheel 17 respectively, the guide limiting piece is arranged on the lower end surface of the horizontal truss 13, and the upper part of the moving seat 19 is fixedly connected with the steel wire rope sleeve 18 and the lower part is connected with the moving end of the guide limiting piece. The guide limiting piece includes guide rails 20 and sliding blocks 21. The guide rails 20 are symmetrically arranged on the lower end surface of the horizontal truss 13, and the sliding blocks 21 are slidably sleeved on the guide rails 20 and connected with the moving seat 19. The lifting adjusting assembly includes a cylinder 22, guide columns 23 and guide sleeves 24. The cylinder 22 is arranged on the lower end of the moving seat 19 in the vertical direction and the telescopic end is connected with the scraper 14. The guide columns 23 are symmetrically arranged on the lower end of the moving seat 19. The guide sleeves 24 are slidably sleeved on the guide columns 23 and connected with the scraper 14. In use, the telescopic end of the cylinder 22 is expanded to push the scraper 14 to extend downward below the liquid surface under the limiting cooperation of the two side guide sleeves 24 and the guide columns 23. The servo drive 15 is started to drive the power groove wheel 16 to rotate. During the rotation of the power groove wheel 16, the steel wire rope sleeve 18 is pulled to move under the action of friction. During the movement of the steel wire rope sleeve 18, the moving seat 19 moves in the horizontal direction under the cooperation of the guide rails 20 and the sliding blocks 21 to drive the scraper 14 to move synchronously. The oil-containing floating sludge on the upper part of the liquid surface is hung into the floating sludge collecting groove 9 by the scraper 14 to realize the automatic cleaning of the floating oil and the floating sludge, improve the sewage purification effect, and reduce the difficulty of subsequent purification treatment.

[0018] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A truck-mounted oilfield wastewater treatment plant comprising a truck frame assembly, characterized in that, The frame assembly is provided with a pre-sedimentation tank, one side of the pre-sedimentation tank is provided with a reaction sedimentation tank, the reaction sedimentation tank and the pre-sedimentation tank are communicated through an open channel groove, the side of the reaction sedimentation tank is provided with a clear liquid discharge port, one end of the clear liquid discharge port is connected with a backwashing bag filter through a booster pump, the outlet of the backwashing bag filter is connected with a reinjection pump, the top of the reaction sedimentation tank and the pre-sedimentation tank is provided with a scum cleaning mechanism, one side of the reaction sedimentation tank is provided with a scum collecting groove, the pre-sedimentation tank is symmetrically provided with a dosing mechanism on both sides, the pre-sedimentation tank is provided with an impact stirring assembly in the horizontal direction, the exposed end of the impact stirring assembly is connected with a driving mechanism, the side of the reaction sedimentation tank is provided with an aeration mechanism, one end of the aeration mechanism extends into the reaction sedimentation tank, and the exposed end of the aeration mechanism is connected with a blower.

2. The vehicle-mounted oilfield wastewater purification equipment according to claim 1, characterized in that, The scum cleaning mechanism comprises a horizontal truss arranged on the frame assembly, the horizontal truss is located above the pre-sedimentation tank and the reaction sedimentation tank, a moving adjusting structure is arranged on the horizontal truss, a lifting adjusting assembly is arranged at the lower part of the moving end of the moving adjusting structure, and a scraper is arranged at the moving end of the lifting adjusting assembly.

3. A truck-mounted oilfield wastewater treatment plant according to claim 2, characterized in that, The moving adjusting structure comprises a servo drive, a power groove wheel, a supporting groove wheel, a steel wire rope sleeve, a guide limiting piece and a moving seat, the servo drive is arranged at one end of the horizontal truss, the power groove wheel is fixedly sleeved on the output end of the servo drive, the supporting groove wheel is rotatably arranged on the horizontal truss and symmetrically arranged with the power groove wheel, the steel wire rope sleeve is sleeved in the power groove wheel and the supporting groove wheel at both ends respectively, the guide limiting piece is arranged on the lower end surface of the horizontal truss, and the upper part of the moving seat is fixedly connected with the steel wire rope sleeve and the lower part is connected with the moving end of the guide limiting piece.

4. The truck-mounted oilfield wastewater treatment system of claim 3, wherein, The guide limiting piece comprises a guide rail and a sliding block, the guide rail is symmetrically arranged on the lower end surface of the horizontal truss, and the sliding block is slidably sleeved on the guide rail and connected with the moving seat.

5. The vehicle-mounted oilfield wastewater purification device according to claim 3, characterized in that, The lifting adjusting assembly comprises a cylinder, a guide column and a guide sleeve, the cylinder is arranged on the lower end of the moving seat in the vertical direction and connected with the scraper at the telescopic end, the guide column is symmetrically arranged on the lower end of the moving seat, and the guide sleeve is slidably sleeved on the guide column and connected with the scraper.

6. The vehicle-mounted oilfield wastewater purification apparatus according to claim 1, characterized in that, The impact stirring assembly comprises a stirring shaft and a stirring paddle, the stirring shaft is rotatably arranged in the pre-sedimentation tank and connected with the driving mechanism at one end, and the stirring paddle is fixedly sleeved on the stirring shaft.

Images