CN212799961U

CN212799961U - Oil gas field wastewater treatment device

Info

Publication number: CN212799961U
Application number: CN202021506309.5U
Authority: CN
Inventors: 胡猛
Original assignee: Hebei Linjiang Environmental Technology Development Co ltd
Current assignee: Hebei Linjiang Environmental Technology Development Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-26
Anticipated expiration: 2030-07-27

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an oil and gas field wastewater treatment device, which is convenient for treating floating impurities in wastewater, and is convenient for cleaning the impurities attached to a filter screen, thereby ensuring the efficiency of wastewater treatment and improving the practicability, and comprises a filter box, a sludge box, a rotating shaft and a telescopic oil cylinder, wherein a working chamber is arranged in the filter box, a baffle is transversely arranged in the working chamber, the baffle divides the working chamber into a filter chamber and a mixing chamber, the filter chamber is positioned above the mixing chamber, a plurality of groups of intercommunicating pores are arranged on the baffle, the device also comprises a stirring motor, a stirring shaft, a stirring blade, a wastewater pipe, a feeding pipe, a water outlet pipe, a collecting hopper, a first sludge pump, a second sludge pump, a barrel-shaped filter screen, a first ball bearing, a second ball bearing, a gear, a rack, a plurality of groups of connecting rods, a mounting plate, the buoyancy device can slide up and down along the rotating shaft, and a sewage suction groove is arranged on the buoyancy device.

Description

Oil gas field wastewater treatment device

Technical Field

The utility model relates to a technical field of waste water treatment especially relates to an oil gas field effluent treatment plant.

Background

As is well known, the components of drilling sewage are quite complex and mainly comprise drilling fluid, flushing fluid and the like. Other types of sewage mainly comprise percolating water in an oil sludge stacking place, sewage of washing equipment, surface runoff rainwater of an oil field, domestic sewage, polluted water body caused by accidental leakage and discharge and the like, oil and gas field water is in long-term contact with underground rock strata and natural gas, so that soluble salts, suspended matters, harmful gases, organic matters and the like are dissolved in the oil and gas field water besides petroleum, the oil and gas field wastewater needs to be properly treated, the conventional oil and gas field wastewater treatment generally adopts physical flocculation filtration to remove impurities, then the impurities are subjected to filter pressing, the wastewater is subjected to subsequent anaerobic treatment, aerobic treatment, electrochemical treatment and ultraviolet disinfection treatment to realize deep purification of the wastewater and can be directly discharged, but the conventional physical flocculation filtration unit for oil and gas field wastewater treatment is inconvenient to treat floating impurities in the wastewater, and a filter screen is easily blocked by generated flocculants, inconvenient clearance influences the efficiency of waste water treatment, leads to the practicality lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a float impurity in convenient to the waste water is handled to the convenient impurity to attaching to on the filter screen is cleared up, guarantees waste water treatment's efficiency, improves the oil gas field effluent treatment plant of practicality.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an oil and gas field wastewater treatment device comprises a filter tank and a sludge tank; the sludge treatment device is characterized by further comprising a rotating shaft and a telescopic oil cylinder, a working chamber is arranged in the filtering box, a partition plate is transversely arranged in the working chamber and divides the working chamber into a filtering chamber and a mixing chamber, the filtering chamber is positioned above the mixing chamber, a plurality of groups of intercommunicating pores are arranged on the partition plate, the filtering chamber is communicated with the mixing chamber through the plurality of groups of intercommunicating pores, a stirring motor is arranged at the bottom end of the filtering box, a stirring shaft is arranged at the output end of the top of the stirring motor, the top end of the stirring shaft extends into the mixing chamber, a plurality of groups of stirring blades are arranged on the stirring shaft and are positioned in the mixing chamber, a waste water pipe and a feeding pipe which are communicated with the mixing chamber are arranged at the left end of the filtering box, a water outlet pipe which is communicated with the filtering chamber is arranged at the right end of the filtering box, the input end of the first sludge pump extends into the mixing chamber and is communicated with the bottom end of the collecting hopper, the output end of the first sludge pump is communicated with the sludge tank, the top end of the separating plate is provided with a barrel-shaped filtering net, the barrel-shaped filtering net is reversely buckled at the top end of the separating plate, the top end of the barrel-shaped filtering net is provided with a first mounting hole, a first ball bearing is fixedly mounted in the first mounting hole, the top end of the filtering tank is provided with a second mounting hole communicated with the filtering chamber, a second ball bearing is fixedly mounted in the second mounting hole, the bottom end of the rotating shaft sequentially passes through the second ball bearing and the first ball bearing and extends into the barrel-shaped filtering net, the top end of the rotating shaft is provided with a gear, the telescopic oil cylinder is mounted at the top end of the filtering tank, the output end of the telescopic oil cylinder is provided with a rack, the rack is meshed with the, the multiunit connecting rod all is located the tubbiness filter screen to be provided with the mounting panel at the tip of multiunit connecting rod, the outside of mounting panel is provided with the doctor-bar that pastes tightly with the inside wall of tubbiness filter screen, the outside of pivot is provided with buoyancy, buoyancy can slide from top to bottom along the pivot to be provided with the dirt suction groove on buoyancy, the input and the dirt suction groove intercommunication of second sludge pump, the output and the sludge box intercommunication of second sludge pump.

Preferably, the buoyancy device includes buoyancy plectane, linear bearing and two sets of buoyancy curb plates, linear bearing slides and sets up in the outside of pivot, buoyancy plectane fixed mounting is in linear bearing's outside, two sets of buoyancy curb plates symmetry are installed in the outside of buoyancy plectane, the dirt suction groove is provided with the outside of two sets of buoyancy curb plates.

Preferably, the buoyancy circular plate and the two groups of buoyancy side plates are integrally formed, a limiting rod is arranged at the top end of the buoyancy circular plate, a limiting groove is vertically formed in the outer side of the rotating shaft, and the end part of the limiting rod is arranged in the limiting groove in a sliding mode.

Preferably, the top end of the filter box is provided with a linear slide rail, the top end of the linear slide rail is provided with a slide block in a sliding manner, and the slide block is fixedly connected with the bottom end of the rack.

Preferably, the plurality of groups of communication holes annularly surround the outer side of the collecting hopper, and are all positioned in the barrel-shaped filter screen.

Preferably, the top ends of the plurality of groups of communication holes are provided with water distribution covers, the bottoms of the water distribution covers are provided with water inlets communicated with the communication holes, and the tops of the outer sides of the water distribution covers are provided with a plurality of groups of water outlet holes.

(III) advantageous effects

Compared with the prior art, the utility model provides an oil gas field effluent treatment plant possesses following beneficial effect:

1. the oil and gas field wastewater treatment device comprises a wastewater pipe, a flocculating agent is added into a mixing chamber through a charging pipe, a stirring shaft and a stirring blade are driven by a stirring motor to rotate, so that the wastewater is fully mixed with the flocculating agent, the mixed wastewater and the flocculating agent enter a barrel-shaped filter screen through a communication hole, the mixing chamber and a filter chamber are separately arranged, the wastewater and the flocculating agent can be fully mixed, a stable environment can be provided for impurity flocculation in the wastewater, the flocculating agent is convenient to generate, generated flocculating agents are filtered through the barrel-shaped filter screen, the filtered water is led out through a water outlet pipe for subsequent treatment, and the filtered impurities fall into a collecting hopper under the action of self gravity and are intermittently pumped to a sludge tank by a first sludge pump;

2. according to the oil and gas field wastewater treatment device, the rack is driven by the telescopic oil cylinder, the rotating shaft is driven to rotate in a reciprocating manner by the matching of the rack and the gear, the buoyancy device on the rotating shaft floats on the top of the sewage, and the floating impurities on the top of the sewage are sucked into the sludge tank by the second sludge pump through the sewage suction groove, so that the floating impurities in the wastewater are conveniently treated;

3. this oil gas field effluent treatment plant, the reciprocal pivoted in-process of pivot drives connecting rod and doctor-bar and rotates, clears up the adnexed impurity of tubbiness filter screen inside wall through the doctor-bar, and the convenience is cleared up the impurity of attaching to on the filter screen, guarantees effluent treatment's efficiency, improves the practicality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of the connection between the shaft and the buoyancy device of the present invention;

fig. 4 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention;

fig. 5 is a schematic view of the present invention at a portion B of fig. 1;

in the drawings, the reference numbers: 1. a filter box; 2. a sludge tank; 3. a rotating shaft; 4. a telescopic oil cylinder; 5. a partition plate; 6. a communicating hole; 7. a stirring motor; 8. a stirring shaft; 9. stirring blades; 10. a waste pipe; 11. a feed tube; 12. a water outlet pipe; 13. a collecting hopper; 14. a first sludge pump; 15. a second sludge pump; 16. a barrel-shaped filter screen; 17. a first ball bearing; 18. a second ball bearing; 19. a gear; 20. a rack; 21. a connecting rod; 22. mounting a plate; 23. scraping a blade; 24. a sewage suction tank; 25. a buoyancy disc; 26. a linear bearing; 27. a buoyancy side plate; 28. a limiting rod; 29. a limiting groove; 30. a linear slide rail; 31. a slider; 32. a water distribution cover; 33. and (7) water outlet holes.

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. 1-5, the utility model relates to an oil and gas field wastewater treatment device, which comprises a filter tank 1 and a sludge tank 2; the filter box comprises a filter box body and is characterized by further comprising a rotating shaft 3 and a telescopic oil cylinder 4, a working cavity is arranged in the filter box body 1, a partition plate 5 is transversely arranged in the working cavity, the partition plate 5 divides the working cavity into a filter chamber and a mixing chamber, the filter chamber is located above the mixing chamber, a plurality of groups of communication holes 6 are formed in the partition plate 5, the filter chamber is communicated with the mixing chamber through the plurality of groups of communication holes 6, a stirring motor 7 is arranged at the bottom end of the filter box body 1, a stirring shaft 8 is arranged at the top output end of the stirring motor 7, the top end of the stirring shaft 8 extends into the mixing chamber, a plurality of groups of stirring blades 9 are arranged on the stirring shaft 8, the stirring blades 9 are located in the mixing chamber, a waste water pipe 10 and a feeding pipe 11 which are communicated with the mixing chamber are arranged at the left end of the filter box body 1, a, the top end of the sludge box 2 is provided with a first sludge pump 14 and a second sludge pump 15, the input end of the first sludge pump 14 extends into the mixing chamber and is communicated with the bottom end of the collecting hopper 13, the output end of the first sludge pump 14 is communicated with the sludge box 2, the top end of the partition plate 5 is provided with a barrel-shaped filter screen 16, the barrel-shaped filter screen 16 is buckled on the top end of the partition plate 5 in an inverted manner, the top end of the barrel-shaped filter screen 16 is provided with a first mounting hole, a first ball bearing 17 is fixedly mounted in the first mounting hole, the top end of the filter box 1 is provided with a second mounting hole communicated with the filter chamber, a second ball bearing 18 is fixedly mounted in the second mounting hole, the bottom end of the rotating shaft 3 sequentially penetrates through the second ball bearing 18 and the first ball bearing 17 to extend into the barrel-shaped filter screen 16, the top end of the rotating shaft 3 is provided with a gear 19, the telescopic oil cylinder 4 is mounted at, a rack 20 is arranged at the output end of the telescopic oil cylinder 4, the rack 20 is meshed with a gear 19, a plurality of groups of connecting rods 21 are arranged on the outer side of the rotating shaft 3, the plurality of groups of connecting rods 21 are all positioned in the barrel-shaped filter screen 16, an installing plate 22 is arranged at the end part of the plurality of groups of connecting rods 21, a scraping blade 23 which is tightly attached to the inner side wall of the barrel-shaped filter screen 16 is arranged on the outer side of the installing plate 22, a buoyancy device is arranged on the outer side of the rotating shaft 3, the buoyancy device can slide up and down along the rotating shaft 3, a sewage suction groove 24 is arranged on the buoyancy device, the input end of the second sludge pump 15 is communicated with the sewage suction groove 24, and; waste water is led into a mixing chamber through a waste water pipe 10, a flocculating agent is added into the mixing chamber through a feeding pipe 11, a stirring shaft 8 and stirring blades 9 are driven to rotate through a stirring motor 7, the waste water and the flocculating agent are fully mixed, the mixed waste water and the flocculating agent enter a barrel-shaped filter screen 16 through a communication hole 6, the mixing chamber and a filter chamber are separately arranged, the waste water and the flocculating agent can be fully mixed, a stable environment can be provided for flocculation of impurities in the waste water, the flocculating agent is convenient to generate, generated flocculating agents are filtered through the barrel-shaped filter screen 16, filtered water is led out through a water outlet pipe 12 for subsequent treatment, and the filtered impurities fall into a collecting hopper 13 under the action of self gravity and are intermittently pumped to a sludge tank 2 by a first sludge pump 14; the rack 20 is driven by the telescopic oil cylinder 4, the rotating shaft 3 is driven to rotate in a reciprocating manner by the matching of the rack 20 and the gear 19, the buoyancy device on the rotating shaft 3 floats on the top of the sewage, and the floating impurities on the top of the sewage are sucked into the sludge tank 2 by the second sludge pump 15 through the sewage suction groove 24, so that the floating impurities in the wastewater can be conveniently treated; the connecting rod 21 and the doctor-bar 23 are driven to rotate by the 3 reciprocating rotation's of pivot in-process, clear up the adnexed impurity of 16 inside walls of tubbiness filter screen through doctor-bar 23, conveniently clear up the impurity of attaching to on the filter screen, guarantee waste water treatment's efficiency, improve the practicality.

The buoyancy device comprises a buoyancy circular plate 25, a linear bearing 26 and two groups of buoyancy side plates 27, wherein the linear bearing 26 is arranged on the outer side of the rotating shaft 3 in a sliding manner, the buoyancy circular plate 25 is fixedly arranged on the outer side of the linear bearing 26, the two groups of buoyancy side plates 27 are symmetrically arranged on the outer side of the buoyancy circular plate 25, and the sewage suction groove 24 is provided with the outer sides of the two groups of buoyancy side plates 27; the buoyancy circular plate 25 and the buoyancy side plates 27 are hollow plastic shells, foam layers are arranged inside the hollow plastic shells, the buoyancy circular plate 25 can slide up and down along the rotating shaft 3 through a linear bearing 26, the buoyancy circular plate 25 and the two groups of buoyancy side plates 27 are integrally formed, a limiting rod 28 is arranged at the top end of the buoyancy circular plate 25, a limiting groove 29 is vertically arranged on the outer side of the rotating shaft 3, and the end part of the limiting rod 28 is arranged in the limiting groove 29 in a sliding manner; the matching of the limit rod 28 and the limit groove 29 ensures that the rotating shaft 3 can drive the buoyancy device to rotate back and forth, and impurities floating on the surface of the sewage are sucked into the sewage suction groove 24 and then are sucked away in the rotating process.

The top end of the filter box 1 is provided with a linear slide rail 30, the top end of the linear slide rail 30 is provided with a slide block 31 in a sliding manner, and the slide block 31 is fixedly connected with the bottom end of the rack 20; the stability of the rack 20 is ensured by the cooperation of the linear slide rail 30 and the slide block 31.

The multiunit intercommunicating pore 6 is the annular around the outside of collecting the fill 13 to multiunit intercommunicating pore 6 all is located tubbiness filter screen 16, the top of multiunit intercommunicating pore 6 is provided with water distribution cover 32, water distribution cover 32's bottom is provided with the communicating water inlet with intercommunicating pore 6, and water distribution cover 32's outside top is provided with multiunit apopore 33, and waste water in the mixing chamber passes through in the tubbiness filter screen 16 of intercommunicating pore 6 entering filter chamber, under water distribution cover 32's effect, can prevent that the flocculating constituent that produces from piling up too much and blockking up intercommunicating pore 6 or returning the condition in mixing chamber, and the flocculating constituent deposit that produces in the tubbiness filter screen 16.

When the device is used, wastewater is guided into a mixing chamber through a wastewater pipe 10, a flocculating agent is added into the mixing chamber through a feeding pipe 11, a stirring shaft 8 and stirring blades 9 are driven to rotate through a stirring motor 7, the wastewater and the flocculating agent are fully mixed, the mixed wastewater and the flocculating agent enter a barrel-shaped filter screen 16 through a communication hole 6, the mixing chamber and the filter chamber are separately arranged, the wastewater and the flocculating agent can be fully mixed, a stable environment can be provided for flocculation of impurities in the wastewater, the flocculating agent is convenient to generate, the generated flocculating agent is filtered through the barrel-shaped filter screen 16, the filtered water is guided out through a water outlet pipe 12 for subsequent treatment, and the filtered impurities fall into a collecting hopper 13 under the action of self gravity and are intermittently pumped to a sludge tank 2 by a first sludge pump 14; the rack 20 is driven by the telescopic oil cylinder 4, the rotating shaft 3 is driven to rotate in a reciprocating manner by the matching of the rack 20 and the gear 19, the buoyancy device on the rotating shaft 3 floats on the top of the sewage, and the floating impurities on the top of the sewage are sucked into the sludge tank 2 by the second sludge pump 15 through the sewage suction groove 24, so that the floating impurities in the wastewater can be conveniently treated; the connecting rod 21 and the doctor-bar 23 are driven to rotate by the 3 reciprocating rotation's of pivot in-process, clear up the adnexed impurity of 16 inside walls of tubbiness filter screen through doctor-bar 23, conveniently clear up the impurity of attaching to on the filter screen, guarantee waste water treatment's efficiency, improve the practicality.

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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An oil and gas field wastewater treatment device comprises a filter tank (1) and a sludge tank (2); the device is characterized by further comprising a rotating shaft (3) and a telescopic oil cylinder (4), wherein a working chamber is arranged in the filter box (1), a partition plate (5) is transversely arranged in the working chamber, the partition plate (5) partitions the working chamber into a filter chamber and a mixing chamber, the filter chamber is positioned above the mixing chamber, a plurality of groups of communication holes (6) are formed in the partition plate (5), the filter chamber is communicated with the mixing chamber through the plurality of groups of communication holes (6), a stirring motor (7) is arranged at the bottom end of the filter box (1), a stirring shaft (8) is arranged at the top output end of the stirring motor (7), the top end of the stirring shaft (8) extends into the mixing chamber, a plurality of groups of stirring blades (9) are arranged on the stirring shaft (8), the stirring blades (9) are positioned in the mixing chamber, a waste water pipe (10) and a feeding pipe (11) which are communicated with the mixing chamber are arranged, a water outlet pipe (12) communicated with the filter chamber is arranged at the right end of the filter box (1), a collecting hopper (13) communicated with the filter chamber is arranged at the bottom end of the partition plate (5), a first sludge pump (14) and a second sludge pump (15) are arranged at the top end of the sludge box (2), the input end of the first sludge pump (14) extends into the mixing chamber and is communicated with the bottom end of the collecting hopper (13), the output end of the first sludge pump (14) is communicated with the sludge box (2), a barrel-shaped filter screen (16) is arranged at the top end of the partition plate (5), the barrel-shaped filter screen (16) is reversely buckled at the top end of the partition plate (5), a first mounting hole is arranged at the top of the barrel-shaped filter screen (16), a first ball bearing (17) is fixedly arranged in the first mounting hole, a second mounting hole communicated with the filter chamber is arranged at the top end of the filter box (1), and a second ball bearing (18) is fixedly arranged in the second, the bottom of the rotating shaft (3) sequentially penetrates through the second ball bearing (18) and the first ball bearing (17) to extend into the barrel-shaped filter screen (16), a gear (19) is arranged at the top end of the rotating shaft (3), the telescopic oil cylinder (4) is installed at the top end of the filter box (1), a rack (20) is arranged at the output end of the telescopic oil cylinder (4), the rack (20) is meshed with the gear (19), a plurality of groups of connecting rods (21) are arranged on the outer side of the rotating shaft (3), the plurality of groups of connecting rods (21) are all located in the barrel-shaped filter screen (16), an installation plate (22) is arranged at the end part of each group of connecting rods (21), a scraper blade (23) tightly attached to the inner side wall of the barrel-shaped filter screen (16) is arranged on the outer side of the rotating shaft (3), a buoyancy device is arranged on the outer side of the rotating shaft (3), and a sewage suction groove (24) is arranged on the buoyancy device, the input end of the second sludge pump (15) is communicated with the sewage suction groove (24), and the output end of the second sludge pump (15) is communicated with the sludge tank (2).

2. The oil and gas field wastewater treatment device according to claim 1, wherein the buoyancy device comprises a buoyancy circular plate (25), a linear bearing (26) and two sets of buoyancy side plates (27), the linear bearing (26) is slidably arranged on the outer side of the rotating shaft (3), the buoyancy circular plate (25) is fixedly arranged on the outer side of the linear bearing (26), the two sets of buoyancy side plates (27) are symmetrically arranged on the outer side of the buoyancy circular plate (25), and the sewage suction groove (24) is provided with the outer sides of the two sets of buoyancy side plates (27).

3. The oil and gas field wastewater treatment device according to claim 2, wherein the buoyancy circular plate (25) and the two groups of buoyancy side plates (27) are integrally formed, a limiting rod (28) is arranged at the top end of the buoyancy circular plate (25), a limiting groove (29) is vertically arranged at the outer side of the rotating shaft (3), and the end part of the limiting rod (28) is slidably arranged in the limiting groove (29).

4. The oil and gas field wastewater treatment device according to claim 3, characterized in that the top end of the filter box (1) is provided with a linear slide rail (30), a slide block (31) is arranged at the top end of the linear slide rail (30) in a sliding manner, and the slide block (31) is fixedly connected with the bottom end of the rack (20).

5. The oil and gas field wastewater treatment device according to claim 4, characterized in that the plurality of sets of communication holes (6) annularly surround the outside of the collecting hopper (13), and the plurality of sets of communication holes (6) are all located in the barrel-shaped filter screen (16).

6. The oil and gas field wastewater treatment device according to claim 5, characterized in that the top ends of the multiple groups of communication holes (6) are provided with water distribution covers (32), the bottoms of the water distribution covers (32) are provided with water inlets communicated with the communication holes (6), and the tops of the outer sides of the water distribution covers (32) are provided with multiple groups of water outlet holes (33).