CN209906510U - Oil recovery effluent disposal system - Google Patents
Oil recovery effluent disposal system Download PDFInfo
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- CN209906510U CN209906510U CN201920359053.0U CN201920359053U CN209906510U CN 209906510 U CN209906510 U CN 209906510U CN 201920359053 U CN201920359053 U CN 201920359053U CN 209906510 U CN209906510 U CN 209906510U
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Abstract
The utility model provides an oil recovery effluent disposal system, including wastewater disposal basin, charge device, stirring sediment device, sludge thickening tank and mud filter pressing device. The stirring and precipitating device comprises a stirring area and a precipitating area which are arranged side by side, wherein the stirring area is cylindrical, a wastewater inlet and a medicament feed inlet are arranged at the upper part of the stirring area, a stirring paddle is arranged at the wastewater inlet, a clear water outlet is arranged at the upper part of the precipitating area, and a precipitating outlet is arranged at the bottom of the precipitating area. The wastewater pool is connected with the wastewater inlet. The bottom of the dosing device is provided with a medicament discharge port connected with the medicament feed port, and the medicament discharge port is connected with the medicament feed port through a feed pipe. The sludge concentration tank is connected with the sedimentation outlet. And the sludge filter pressing device is connected with the sludge concentration tank. The utility model discloses a compact reasonable overall arrangement handles oil recovery waste water high-efficiently, improves the quality of water problem of waste water, retrieves mud, reduces the problem of mud emission and jam pipeline.
Description
Technical Field
The utility model relates to an oil recovery effluent disposal system.
Background
In recent years, with the continuous development of boundary oil fields and ocean deep water oil fields, the production wastewater generated in the production process is increasing, and the production wastewater contains oil slick, emulsified oil, dissolved oil and other solid suspended matters, and can be discharged or utilized only by corresponding treatment. Along with the continuous strengthening and improvement of the treatment process of the oil extraction wastewater, new challenges are also provided for the treatment equipment of the oily wastewater, and the existing equipment is not efficient and compact enough. Furthermore, there is no system consideration for the treatment of sludge settled in wastewater treatment processes.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an oil recovery wastewater treatment system, compact reasonable overall arrangement handles oil recovery wastewater high-efficiently, improves the quality of water problem of waste water, retrieves mud, reduces the mud emission and blocks up the problem of pipeline.
The utility model provides an oil recovery effluent disposal system, including wastewater disposal basin, charge device, stirring sediment device, sludge thickening tank and mud filter pressing device.
The stirring deposits device is including the stirring district and the settling zone that set up side by side, the stirring district is cylindric, and its upper portion is equipped with waste water inlet and medicament feed inlet, in the stirring district in waste water inlet department is equipped with the stirring rake, and the lower part in stirring district is equipped with the floodgate that can open and shut, and the stirring district is through opening floodgate and settling zone UNICOM, the upper portion in settling zone is equipped with the clear water delivery port, and the bottom is equipped with deposits the export.
The wastewater pool is connected with the wastewater inlet.
The charge device includes that first inorganic flocculant adds feed tank, second inorganic flocculant and organic coagulant aid adds feed tank, on charge device was located the stirring sediment device respectively, its bottom all be equipped with the medicament discharge gate that the medicament feed inlet is connected, the medicament discharge gate passes through the filling tube and is connected with the medicament feed inlet, just the lower tip of filling tube extends to waste water inlet department.
The sludge concentration tank is positioned below the stirring and precipitating device, and the upper part of the sludge concentration tank is connected with the precipitation outlet.
The sludge filter pressing device is connected with the lower part of the sludge concentration tank through a discharge pipe, and a sludge pump is arranged on the discharge pipe.
Further, the sludge filter-pressing device sequentially comprises a flocculation gravity settling section, a wedge-shaped dehydration section and a squeezing dehydration section.
The flocculation gravity settling section comprises a flocculation tank, stirring slurry is arranged in the flocculation tank, and a muddy water outlet is formed in the upper part of the flocculation tank.
Wedge dehydration section includes wedge groove, many first rollers and the winding at the epaxial first transmission filter belt of first roller, first roller rotates and drives the motion of first transmission filter belt, the wedge groove is for following the wedge setting that descends left side, and its right-hand member is located muddy water exit accepts muddy water, and the left end is the opening for with muddy water direction to first transmission filter belt on.
The squeezing and dewatering section comprises a press roll, a plurality of second roll shafts and a second transmission filter belt wound on the second roll shafts, the second transmission filter belt is connected with the first transmission filter belt, the second roll shafts rotate to drive the second transmission filter belt to move, and the press roll is arranged on the second transmission filter belt.
Furthermore, the squeezing and dewatering section is divided into an upper part and a lower part, a second roller shaft on the upper part is distributed in an arc shape, a second transmission filter belt wound on the second roller shaft on the upper part is arranged in an arc shape, one end of the second transmission filter belt is connected with the first transmission filter belt, the other end of the second transmission filter belt is a mud cake output end, and the pressing roller is arranged on the second transmission filter belt of the arc-shaped part in a pressing mode.
Further, the wedge-shaped dewatering section is provided with a water collector; and a water collector is arranged at the lower part of the squeezing and dewatering section and is connected with the clean water tank through a water collecting pipeline.
Furthermore, a submersible pump is arranged in the wastewater pool and is connected with the wastewater inlet through a water inlet pipe.
Furthermore, stirring paddles are arranged in the medicine adding device.
Furthermore, a flow control valve is arranged at the medicament discharge port.
Further, the bottom of the settling zone is provided with a plurality of sunken concave parts, and each sunken concave part is provided with a settling outlet.
The utility model has the advantages that:
the utility model discloses a wastewater disposal basin, charge device, stirring sediment device, sludge thickening tank and mud filter pressing device, charge device, stirring sediment device and sludge thickening tank from top to bottom overall arrangement, the material relies on gravity to flow, reduces the use of charge pump, and compact structure is rationally distributed. The utility model discloses a stirring is depositd device stirring district and is set up easily and stirring rake formation swirl for the cylinder type, and the stirring rake locates the output end department of waste water inlet department and filling tube, can be fast evenly with inorganic flocculant and organic flocculant and oil recovery waste water mixed flocculation, later get into the settling zone and separate the flocculation and precipitation. Compared with the existing process equipment for introducing materials into a large cylinder and stirring and mixing the materials, the process equipment is rapid and high in efficiency; and effectively improve the water quality problems of turbidity, chromaticity, oil stain, suspended matters and the like before the wastewater enters a biochemical process (sludge treatment and recovery), and reduce COD.
The sludge filter-pressing device of the utility model comprises a flocculation gravity settling section, a wedge-shaped dewatering section and a squeezing dewatering section in sequence, and most of sludge in the sludge is settled through the flocculation gravity settling section; the flocculated sludge overflows with muddy water under the action of the stirring paddle and enters a wedge-shaped dewatering section, and the sludge is extruded and dewatered; the sewage is then carried into the press dewatering section by a transfer belt. The clear water collecting system is additionally arranged around the transmission filter belt, clear water after squeezing and dewatering can be collected and enters the clear water tank, meanwhile, sludge is pressed into mud cakes to be bagged and transported away, the problems of sludge discharge and pipeline blockage are reduced, and the sludge is recycled.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the sludge filter pressing device of the utility model.
Detailed Description
The application scheme is further described below with reference to the accompanying drawings:
referring to the attached drawings 1-2, an oil extraction wastewater treatment system comprises a wastewater pool 1, a dosing device 2, a stirring and precipitating device 3, a sludge concentration pool 4 and a sludge filter-pressing device 5.
The stirring and precipitating device 3 comprises a stirring area 31 and a precipitating area 32 which are arranged in parallel, wherein the stirring area 31 is cylindrical, a wastewater inlet 33 and a medicament inlet 34 are arranged at the upper part of the stirring area 31, a stirring paddle 6 is arranged at the position of the wastewater inlet 33 in the stirring area 31, an openable gate 38 is arranged at the lower part of the stirring area 31, the stirring area 31 is communicated with the precipitating area 32 by opening the gate 38, a clear water outlet 35 is arranged at the upper part of the precipitating area 32, a plurality of sunken concave parts 37 are arranged at the bottom of the precipitating area 32, and a precipitating outlet 36 is arranged in each sunken concave part 37.
A submersible pump 11 is arranged in the wastewater tank 1, and the submersible pump 11 is connected with the wastewater inlet 33 through a water inlet pipe 12.
The sludge concentration tank 4 is a radial-flow sludge concentration tank, is positioned below the stirring and settling device 3, and is connected with the settling outlet 36 through a pipeline at the upper part.
The sludge filter pressing device 5 sequentially comprises a flocculation gravity settling section 7, a wedge-shaped dehydration section 8 and a squeezing dehydration section 9.
Flocculation gravity subsides section 7 includes flocculation tank 71, be equipped with stirring thick liquid 6 in the flocculation tank 71, the sub-unit connection of blow off pipe 51 and sludge thickening pond 4 is passed through to one side on flocculation tank 71 upper portion, be equipped with sludge pump 52 on the blow off pipe 51, the opposite side is equipped with muddy water outlet 72.
Wedge dewatering section 8 includes wedge groove 81, many first rollers 82 and twines the first transmission cassette 83 on first roller 82, first roller 82 rotates in order to drive first transmission cassette 83 motion through motor drive, wedge groove 81 is the wedge setting that descends from the right side left, and its right-hand member is located muddy water export 72 is in order to receive the muddy water that flocculation tank 71 spills over, and wedge groove 81 left end is the opening setting for on leading muddy water to first transmission cassette 83.
The press dewatering section 9 comprises a press roll 91, a plurality of second roll shafts 92 and a second transmission filter belt 93 wound on the second roll shafts 92, the second transmission filter belt 93 is connected with the first transmission filter belt 83, the second roll shafts 92 rotate to drive the second transmission filter belt 93 to move, and the press roll 91 is arranged on the second transmission filter belt 93 in a pressing mode.
Further, the squeezing and dewatering section 9 is divided into an upper part and a lower part, the second roller shaft 92 at the upper part is distributed in an arc shape, the second transmission filter belt 93 wound on the second roller shaft 92 at the upper part is arranged in an arc shape, one end of the second transmission filter belt 93 is connected with the first transmission filter belt 83, the other end is a mud cake output end 94, and the press roller 91 is pressed on the second transmission filter belt 93 at the arc part.
Further, a water collector 53 is arranged below the first conveying filter belt 83 of the wedge-shaped dewatering section 8; the lower part of the squeezing and dewatering section 9 is provided with a water collector 53, and the water collector 53 is connected with a clean water tank 55 through a water collecting pipeline 54.
During the use, immersible pump 11 of effluent disposal basin 1 starts to pump waste water into stirring sediment device 3 in, lets in inorganic flocculating agent and/or organic coagulant aid through charge device 2 simultaneously, opens the stirring rake 6 of stirring district 31, and inorganic flocculating agent and organic flocculating agent and oil recovery waste water mix the flocculation fast evenly, later opens sluice gate 38 and gets into precipitation district 32 separation flocculation and precipitation. The clear water at the upper layer is output from a clear water outlet 35, the sediment and the muddy water at the lower layer are discharged into a sludge concentration tank 4, the muddy water at the lower layer is pumped into a sludge filter-pressing device 5 after standing and concentration, the flocculated sludge overflows with the muddy water and enters a wedge-shaped dewatering section 8 under the action of a stirring paddle of a flocculation gravity settling section 7 of the sludge filter-pressing device 5, and the sludge is extruded and dewatered; the sewage is then carried into the press dewatering section 9 by means of a transfer belt. A clear water collecting system is additionally arranged around the transmission filter belt, and clear water after squeezing and dewatering can be collected and enters a clear water tank 55.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (8)
1. An oil extraction wastewater treatment system is characterized by comprising a wastewater pool, a dosing device, a stirring and precipitating device, a sludge concentration pool and a sludge filter-pressing device,
the stirring area is cylindrical, a wastewater water inlet and a medicament feed port are arranged in the upper part of the stirring area and are parallel to each other, a stirring paddle is arranged at the wastewater water inlet in the stirring area, an openable gate is arranged at the lower part of the stirring area, the stirring area is communicated with the settling area by opening the gate, a clear water outlet is arranged at the upper part of the settling area, and a settling outlet is arranged at the bottom of the settling area;
the wastewater pool is connected with the wastewater inlet;
the chemical adding device comprises a first inorganic flocculant feeding tank, a second inorganic flocculant feeding tank and an organic coagulant aid feeding tank, the chemical adding device is respectively positioned above the stirring and precipitating device, the bottom of the chemical adding device is provided with a chemical discharging port connected with the chemical feeding port, the chemical discharging port is connected with the chemical feeding port through a feeding pipe, and the lower end part of the feeding pipe extends to the wastewater inlet;
the sludge concentration tank is positioned below the stirring and settling device, and the upper part of the sludge concentration tank is connected with the settling outlet;
the sludge filter pressing device is connected with the lower part of the sludge concentration tank through a discharge pipe, and a sludge pump is arranged on the discharge pipe.
2. The oil recovery wastewater treatment system according to claim 1, wherein the sludge press filtration device comprises a flocculation gravity settling section, a wedge-shaped dewatering section and a press dewatering section in sequence;
the flocculation gravity settling section comprises a flocculation tank, stirring slurry is arranged in the flocculation tank, and a muddy water outlet is formed in the upper part of the flocculation tank;
the wedge-shaped dewatering section comprises a wedge-shaped groove, a plurality of first roll shafts and a first transmission filter belt wound on the first roll shafts, the first roll shafts rotate to drive the first transmission filter belt to move, the wedge-shaped groove is in a wedge shape and descends from right to left, the right end of the wedge-shaped groove is arranged at the muddy water outlet to receive muddy water, and the left end of the wedge-shaped groove is provided with an opening and used for guiding the muddy water to the first transmission filter belt;
the squeezing and dewatering section comprises a press roll, a plurality of second roll shafts and a second transmission filter belt wound on the second roll shafts, the second transmission filter belt is connected with the first transmission filter belt, the second roll shafts rotate to drive the second transmission filter belt to move, and the press roll is arranged on the second transmission filter belt.
3. The wastewater treatment system for oil recovery according to claim 2, wherein the press-dewatering section is divided into an upper section and a lower section, the second roll shaft of the upper section is distributed in an arc, the second transmission belt wound around the second roll shaft of the upper section is arranged in an arc, one end of the second transmission belt is connected to the first transmission belt, the other end of the second transmission belt is a cake output end, and the press roll is pressed on the second transmission belt of the arc.
4. The oil recovery wastewater treatment system according to claim 3, wherein the wedge-shaped dewatering section is provided with a water collector; and a water collector is arranged at the lower part of the squeezing and dewatering section and is connected with the clean water tank through a water collecting pipeline.
5. The oil recovery wastewater treatment system according to claim 1, wherein a submersible pump is arranged in the wastewater pool and connected with the wastewater inlet through a water inlet pipe.
6. The oil recovery wastewater treatment system according to claim 1, wherein stirring paddles are arranged in each of the chemical feeding devices.
7. The wastewater treatment system for oil recovery according to claim 1, wherein a flow control valve is disposed at the agent outlet.
8. The wastewater treatment system for oil recovery according to claim 1, wherein the bottom of the settling zone is provided with a plurality of sunken recesses, each sunken recess being provided with a settling outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359053.0U CN209906510U (en) | 2019-03-21 | 2019-03-21 | Oil recovery effluent disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359053.0U CN209906510U (en) | 2019-03-21 | 2019-03-21 | Oil recovery effluent disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209906510U true CN209906510U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359053.0U Active CN209906510U (en) | 2019-03-21 | 2019-03-21 | Oil recovery effluent disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209906510U (en) |
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2019
- 2019-03-21 CN CN201920359053.0U patent/CN209906510U/en active Active
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