CN212476431U

CN212476431U - Oil field hypersalinity sewage treatment plant

Info

Publication number: CN212476431U
Application number: CN202020392320.7U
Authority: CN
Inventors: 于婷; 张秀婷; 刘刚
Original assignee: Daqing Zhongke Qingxi Water Treatment Technology Service Co ltd
Current assignee: Daqing Zhongke Qingxi Water Treatment Technology Service Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-02-05
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses an oil field hypersalinity sewage treatment plant, which relates to the technical field of oil field sewage treatment, and solves the technical problems of the prior sewage treatment plant that the treatment is carried out by adopting a single physical mode, which leads some chemical organic matters to be incapable of being treated, thereby causing secondary pollution to the environment, and the prior sewage treatment plant has long consumption time and reduces the working efficiency of the sewage treatment plant; after being treated by chemical agents, the mineralization degree and calcium, magnesium, boron and other ions in raw water can be greatly reduced and removed, so that the clean water can be used for multiple times.

Description

Oil field hypersalinity sewage treatment plant

Technical Field

The utility model relates to an oil field sewage treatment technical field specifically is an oil field hypersalinity sewage treatment plant.

Background

Along with the increase of the exploration and development force of the oil field, the discharge capacity of oily sewage in the oil field increases year by year, and the sewage contains a large amount of oily substances and organic substances when discharged due to the imperfect treatment technology, thereby causing the pollution of the sewage discharge to the environment, for example, in the utility model patent with the name of a high-efficiency physical oily sewage treatment device and the publication number of CN205204878U, a base is designed, the base is provided with a tank body and a PLC control device, the tank body is respectively connected with a water inlet/back flush water outlet pipeline, a water outlet/back flush water inlet pipeline, an aeration pipeline, an oil discharge pipeline and a sewage discharge pipeline, the water inlet/back flush water outlet pipeline and the water outlet/back flush water inlet pipeline are respectively provided with a booster pump and a back flush pump, the water inlet/back flush water outlet pipeline and the water outlet/back flush water inlet pipeline are respectively arranged on the sewage treatment, however, the existing sewage treatment device adopts a single physical mode for treatment, so that some chemical organic matters cannot be treated, and further secondary pollution is caused to the environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an oil field hypersalinity sewage treatment plant has solved current sewage treatment plant, adopts single physical mode to handle, leads to some chemical organic matters can not handle, and then causes secondary pollution to the environment to current sewage treatment plant consumes time long, has reduced sewage treatment plant's work efficiency's technical problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a high-salinity sewage treatment device for an oil field comprises a sewage collecting tank, wherein a partition plate is fixedly arranged in the sewage collecting tank, a desanding chamber is formed by the lower wall surface of the sewage collecting tank and the partition plate, a water inlet pipe is fixedly connected to the side wall surface of the sewage collecting tank below the partition plate, a scraper is fixedly arranged on the upper wall surface of the sewage collecting tank, a first conduit is fixedly connected to the other side wall surface of the sewage collecting tank, a reaction tank is fixedly connected to the first conduit, a second conduit is fixedly connected to the other side wall surface of the reaction tank, a settling tank is fixedly connected to the other end of the second conduit, a water inlet chamber is arranged in the settling tank, the other end of the second conduit is connected with the water inlet chamber, an inclined plate is fixedly arranged on the lower wall surface in the settling tank, a sludge discharge pipe is fixedly connected to the lower wall surface of the settling tank, and, the utility model discloses a sewage treatment device, including sewage tank, sedimentation tank side wall face fixedly connected with third pipe, third pipe other end fixedly connected with air supporting pond, air supporting pond side wall face fixed mounting has the aeration machine, aeration machine output fixed mounting has the aeration pipe, the aeration pipe is located the air supporting pond, wall fixed mounting has the scraper blade machine the same with sewage collecting tank on the air supporting pond, fixedly connected with fourth pipe on the other side wall face of air supporting pond, fixedly connected with filters the jar on the fourth pipe, filter fixedly connected with drain pipe on the jar, sewage collecting tank and retort antetheca difference fixed mounting have charge device.

Preferably, charge device includes the dosing tank, on the wall before dosing tank difference fixed mounting and sewage collecting pit and the retort, dosing tank side fixedly connected with advances the medicine mouth, wall fixed mounting has the protection casing on the dosing tank, fixed mounting has first motor in the protection casing, wall on the dosing tank is run through to first motor drive end, fixed mounting has the bull stick on the first motor drive end, fixed mounting has the blade on the bull stick.

Preferably, the reaction tank upper wall surface is fixedly provided with a fixed box, a second motor is fixedly arranged in the fixed box, the second motor driving end penetrates through the lower wall surface of the fixed box and the upper wall surface of the reaction tank, and the second motor driving end is fixedly provided with a stirring rod.

Preferably, scrape trigger and include the conveyer belt, conveyer belt fixed mounting is wall on sewage collecting pool and air supporting pond, fixed mounting has the scraper blade on the conveyer belt respectively, the scraper blade on the wall is located sewage collecting pool and air supporting pond respectively under the conveyer belt.

Preferably, the sewage collecting tank and the air floatation tank are fixedly provided with a waste collecting tank at one side of the scraper machine.

Preferably, the inclined plate is inclined at an angle of 60 degrees.

Preferably, the cross section of the lower wall surface of the sedimentation tank is shaped into a funnel-shaped structure.

Preferably, a gas dissolving machine is fixedly mounted on the side wall surface of the sewage collecting tank above the partition plate, and the output end of the gas dissolving machine is located in the sewage collecting tank.

Advantageous effects

The utility model provides an oil field hypersalinity sewage treatment device, which solves the problems of the prior sewage treatment device that some chemical organic matters can not be treated by adopting a single physical mode to treat, thereby causing secondary pollution to the environment, and the prior sewage treatment device has long consumption time and reduces the working efficiency of the sewage treatment device; directly removing the sludge in the raw water through flocculation, air flotation and sedimentation, and strongly and effectively removing a large amount of pollutants such as suspended matters, petroleum and the like in the waste liquid, so that the sludge in a water system is reduced, the vicious cycle of water quality pollutants is avoided, and the generated sludge is physically dewatered by a filter pressing system; after being treated by chemical agents, the mineralization degree and calcium, magnesium, boron and other ions in raw water can be greatly reduced and removed, so that the clean water can be used for multiple times.

Drawings

FIG. 1 is the utility model relates to a structure schematic diagram is looked to oil field hypersalinity sewage treatment plant's owner.

FIG. 2 is the utility model discloses a charge device structure sketch map of oil field hypersalinity sewage treatment plant.

FIG. 3 is the utility model discloses a flow structure schematic diagram of an oil field hypersalinity sewage treatment device.

In the figure: 1-a sewage collecting tank; 2-a separator; 3-a desanding chamber; 4-water inlet pipe; 5-a first conduit; 6-a reaction tank; 7-a second conduit; 8-a sedimentation tank; 9-a water inlet chamber; 10-inclined plate; 11-a sludge discharge pipe; 12-a blowdown tank; 13-a third conduit; 14-an air floatation tank; 15-an aerator; 16-an aerator pipe; 17-a fourth conduit; 18-a filtration tank; 19-a drain pipe; 20-dosing boxes; 21-a medicine inlet; 22-a protective cover; 23-a first motor; 24-a rotating rod; 25-blades; 26-a second motor; 27-a stirring rod; 28-a conveyor belt; 29-a scraper; 30-waste accumulation box; 31-dissolved air machine.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-salinity sewage treatment device for an oil field comprises a sewage collecting tank 1, wherein a partition plate 2 is fixedly arranged in the sewage collecting tank 1, a desanding chamber 3 is formed by the lower wall surface of the sewage collecting tank 1 and the partition plate 2, a water inlet pipe 4 is fixedly connected below the partition plate 2 on the side wall surface of the sewage collecting tank 1, a scraper is fixedly arranged on the upper wall surface of the sewage collecting tank 1, a first conduit 5 is fixedly connected on the other side wall surface of the sewage collecting tank 1, a reaction tank 6 is fixedly connected on the first conduit 5, a second conduit 7 is fixedly connected on the other side wall surface of the reaction tank 6, the other end of the second conduit 7 is fixedly connected with a sedimentation tank 8, a water inlet chamber 9 is arranged in the sedimentation tank 8, the other end of the second conduit 7 is connected with the water inlet chamber 9, an inclined plate 10 is fixedly arranged on the lower wall surface in the sedimentation tank 8, a sludge discharge pipe 11 is fixedly connected on the lower wall surface, the other end of the sludge discharge pipe 11 is fixedly connected with a sewage discharge tank 12, the sewage discharge tank 12 is connected with a sludge press filtration device, the side wall surface of the sedimentation tank 8 is fixedly connected with a third guide pipe 13, the other end of the third guide pipe 13 is fixedly connected with an air floatation tank 14, the side wall surface of the air floatation tank 14 is fixedly provided with an aerator 15, the output end of the aerator 15 is fixedly provided with an aerator pipe 16, the aerator pipe 16 is positioned in the air floatation tank 14, the upper wall surface of the air floatation tank 14 is fixedly provided with a scraper which is the same as the sewage collection tank 1, the other side wall surface of the air floatation tank 14 is fixedly connected with a fourth guide pipe 17, the fourth guide pipe is fixedly connected with a filter tank 18, the filter tank 18 is fixedly connected with a drain pipe 19, the front walls of the sewage collection tank 1 and the reaction tank 6 are respectively fixedly provided with a chemical dosing device, the chemical dosing device comprises a chemical dosing box 20, the chemical dosing box, the dosing tank 20 side fixedly connected with advances medicine mouth 21, wall fixed mounting has protection casing 22 on the dosing tank 20, fixed mounting has first motor 23 in the protection casing 22, wall on the first motor 23 drive end runs through the dosing tank 20, fixed mounting has bull stick 24 on the first motor 23 drive end, fixed mounting has blade 25 on the bull stick 24, wall fixed mounting has fixed case on retort 6, fixed mounting has second motor 26 in the fixed case, the second motor 26 drive end runs through fixed case lower wall and retort 6 upper wall, fixed mounting has puddler 27 on the second motor 26 drive end, the scraper blade machine includes conveyer belt 28, conveyer belt 28 fixed mounting is on wall on sewage collection pool 1 and air supporting pond 14, respectively fixed mounting has scraper blade 29 on the conveyer belt 28, scraper blade 29 on the wall is located sewage collection pool 1 and air supporting pond 14 respectively under the conveyer belt 28, it has long-pending useless case 30 to lie in scraper blade machine one side fixed mounting on sewage collecting tank 1 and the air supporting pond 14, hang plate 10 inclination is 60 inclinations, the wall cross-section shape becomes to be hopper-shaped structure under the sedimentation tank 8, lie in baffle 2 top fixed mounting on the wall surface of sewage collecting tank 1 and dissolve mechanism of qi 31, dissolve mechanism of qi 31 output and lie in sewage collecting tank 1.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from the attached drawings of the specification, when in use, the first conduit 5, the second conduit 7, the third conduit 13 and the fourth conduit 17 are respectively provided with a water pump, the aerator 15, the first motor 23, the second motor 26, the conveyor belt 28 and the gas dissolving machine 31 are respectively in electric control connection with an external power supply and a controller through leads, sewage is discharged into the sewage collecting tank 1 through the water inlet pipe 4, due to the factors of the partition plate 2, a sand removing chamber 3 is formed between the partition plate 2 and the sewage collecting tank 1, the sand removing chamber 3 removes sand, crude oil in the sewage passes through holes on the upper partition plate 2 and rises to the water surface, the gas dissolving machine 31 is started at the same time, the gas dissolving machine 31 generates micro bubbles to be mixed with the sewage, the micro bubbles are adsorbed, the emulsion oil and separable suspended matters are carried to the water surface, and the emulsion oil and the separated suspended matters rising along with the crude oil are scraped into, the scraper mechanism rotates as a conveyor belt 28 and drives a scraper 29 to scrape upper-layer suspended matters of the sewage one by one, meanwhile, a viscosity reducer is added into a dosing tank 20 on a sewage collecting tank 1, the viscosity reducer enters the dosing tank 20 through a medicine inlet 21, a first motor 23 is started, a driving end of the first motor 23 rotates and drives a rotating rod 24 to rotate, when the rotating rod 24 rotates, a blade 25 rotates and stirs the viscosity reducer, the dosing tank 20 is connected with the sewage collecting tank 1 through a discharging pipe, the stirred viscosity reducer is discharged into the sewage collecting tank 1 through the discharging pipe to be mixed with dissolved air water, the viscosity of the wastewater is reduced, the sewage with the reduced viscosity enters a reaction tank 6 through a first guide pipe 5, three dosing devices are arranged on the reaction tank 6, one of the three dosing devices is used for adding a coagulant, the second iron ore powder is added, the second motor 26 is started at the moment, the driving end of the second motor 26 rotates to further rotate a stirring rod 27, stirring a coagulant, iron ore powder and sewage with reduced viscosity, putting a polyacrylamide solution by a third dosing device, adding the coagulant to ensure that the waste liquid breaks the stability and adjusts the pH value of the waste liquid, reducing suspended matters, COD, petroleum and chroma, simultaneously putting the iron ore powder, separating magnetic particles in the waste liquid from the sewage and adsorbing the magnetic particles around the iron ore powder by virtue of tiny magnetic poles of the iron ore powder, stirring the mixture by a reaction tank to form micro floccules with the iron ore powder as a core, adding the polyacrylamide solution to perform flocculation reaction, forming the suspended matters into large concentrated floccules by virtue of the bridging action of long molecular chains of polymers, guiding liquid in the reaction tank 6 into a settling pond 8 by a second conduit 7, introducing the liquid into the settling pond 1 by a water inlet chamber 9, discharging water from the lower end of the water inlet chamber 9, gradually raising the liquid level, and settling floccules, the upper part of the suspension layer is built by an inclined plate 10 with an inclination angle of 60 degrees, the bottom side surface of the inclined plate 10 is accumulated into a thin mud layer, the thin mud layer slides back to the mud slag suspension layer under the action of gravity, then the thin mud layer is sunk into a mud collecting hopper at the lower end of the sedimentation tank 8 and is discharged into a set sewage discharge tank 12 through a mud discharge pipe 19 for comprehensive treatment, the mud filter press device is provided with a filter press, when the liquid level in the sewage discharge tank 12 reaches a certain height, mud water in the tank is pumped into a stirring tank at the top of the filter press, a certain amount of grain material is added into the stirring tank, the fully stirred mud water can automatically flow on the filter press, the filter press device is used for dehydration, at the moment, supernatant liquid gradually rises to a third conduit 13 and then flows into an air floatation tank 14, at the moment, an aerator 15 is started, the aerator 15 generates micro bubbles and sprays out through an aerator pipe 16, the micro suspended matters remained in the, the water after the air floatation treatment enters the filter tank 18 through the fourth conduit to remove tiny impurities and suspended matters in the water, so as to ensure the water quality of the discharged water, and the clear water filtered by the filter tank 18 is pumped out by the external pump and pumped into the original set clear water tank by the drain pipe 19 for reuse.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. The utility model provides an oil field high salinity sewage treatment plant, includes sewage catch pit (1), its characterized in that, fixed mounting has baffle (2) in sewage catch pit (1), wall and baffle (2) form desanding chamber (3) under sewage catch pit (1), lie in baffle (2) below fixedly connected with inlet tube (4) on the side wall face of sewage catch pit (1), wall fixed mounting has the scraper on sewage catch pit (1), fixedly connected with first pipe (5) on the side wall face of sewage catch pit (1), fixedly connected with retort (6) on first pipe (5), fixedly connected with second pipe (7) on the side wall face of retort (6), second pipe (7) other end fixed connection has sedimentation tank (8), install intake chamber (9) in sedimentation tank (8), the other end of the second conduit (7) is connected with the water inlet chamber (9), a sloping plate (10) is fixedly mounted on the lower wall surface in the sedimentation tank (8), a sludge discharge pipe (11) is fixedly connected to the lower wall surface of the sedimentation tank (8), a sewage discharge tank (12) is fixedly connected to the other end of the sludge discharge pipe (11), a sludge filter pressing device is connected to the sewage discharge tank (12), a third conduit (13) is fixedly connected to the side wall surface of the sedimentation tank (8), an air floatation tank (14) is fixedly connected to the other end of the third conduit (13), an aerator (15) is fixedly mounted on the side wall surface of the air floatation tank (14), an aerator pipe (16) is fixedly mounted at the output end of the aerator (15), the aerator pipe (16) is located in the air floatation tank (14), and a scraper machine which is the same as the sewage collection tank (1) is fixedly mounted on the upper wall surface of, fixedly connected with fourth pipe (17) on the wall surface of another side of air supporting pond (14), fixedly connected with filters jar (18) on the fourth pipe, filter fixedly connected with drain pipe (19) on jar (18), there is charge device sewage collecting tank (1) and retort (6) antetheca fixed mounting respectively.

2. The oil field high-salinity sewage treatment device according to claim 1, characterized in that the dosing device comprises a dosing tank (20), the dosing tank (20) is respectively and fixedly mounted on the front wall surface of the sewage collection tank (1) and the reaction tank (6), a medicine inlet (21) is fixedly connected to the side of the dosing tank (20), a protective cover (22) is fixedly mounted on the upper wall surface of the dosing tank (20), a first motor (23) is fixedly mounted in the protective cover (22), the driving end of the first motor (23) penetrates through the upper wall surface of the dosing tank (20), a rotating rod (24) is fixedly mounted on the driving end of the first motor (23), and blades (25) are fixedly mounted on the rotating rod (24).

3. The oilfield hypersalinity sewage treatment device according to claim 1, wherein a fixed box is fixedly installed on the upper wall surface of the reaction tank (6), a second motor (26) is fixedly installed in the fixed box, the driving end of the second motor (26) penetrates through the lower wall surface of the fixed box and the upper wall surface of the reaction tank (6), and a stirring rod (27) is fixedly installed on the driving end of the second motor (26).

4. The oil field hypersalinity sewage treatment device according to claim 1, characterized in that the scraper conveyor comprises a conveyor belt (28), the conveyor belt (28) is fixedly installed on the upper wall surface of the sewage collection tank (1) and the air floatation tank (14), scrapers (29) are respectively fixedly installed on the conveyor belt (28), and the scrapers (29) on the lower wall surface of the conveyor belt (28) are respectively positioned in the sewage collection tank (1) and the air floatation tank (14).

5. The oil field hypersalinity sewage treatment device according to claim 1, characterized in that a waste collecting box (30) is fixedly installed on one side of the scraper machine on the sewage collecting tank (1) and the air flotation tank (14).

6. The oilfield hypersalinity wastewater treatment device according to claim 1, wherein the inclined plate (10) is inclined at an angle of 60 degrees.

7. The oilfield hypersalinity wastewater treatment device according to claim 1, characterized in that the cross section of the lower wall of the sedimentation basin (8) is shaped as a funnel structure.

8. The oilfield hypersalinity sewage treatment device according to claim 1, characterized in that a gas dissolving machine (31) is fixedly installed on the side wall surface of the sewage collection tank (1) above the partition plate (2), and the output end of the gas dissolving machine (31) is located in the sewage collection tank (1).