CN120794090A - Oil gas field drilling waste liquid processing apparatus - Google Patents
Oil gas field drilling waste liquid processing apparatusInfo
- Publication number
- CN120794090A CN120794090A CN202511288608.3A CN202511288608A CN120794090A CN 120794090 A CN120794090 A CN 120794090A CN 202511288608 A CN202511288608 A CN 202511288608A CN 120794090 A CN120794090 A CN 120794090A
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- Prior art keywords
- oil
- wall
- sedimentation
- communicated
- cylinder body
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Centrifugal Separators (AREA)
- Cyclones (AREA)
Abstract
The invention discloses an oil-gas field drilling waste liquid treatment device, in particular to the technical field of waste water treatment, which comprises an outer cylinder body and a first motor arranged at the upper end of the outer cylinder body, wherein the middle part of the inner cavity of the outer cylinder body is provided with a rotational flow sedimentation structure communicated with a water inlet pipe, the middle part of the inner cavity of the outer cylinder body is provided with a suspended matter collecting structure sleeved outside the rotational flow sedimentation structure and communicated with the inner cavity of the outer cylinder body, and the inner wall of the outer cylinder body and the outer wall of the suspended matter collecting structure are jointly provided with a plurality of active carbon filter layers. The invention realizes preliminary separation of particles by utilizing a sedimentation cylinder and a partition plate through matching of a cyclone sedimentation structure with a scraping assembly and a suspended matter collecting structure, combines double cyclone and reverse cleaning of a cyclone driving shaft and a cross supporting rod to enhance impurity separation, improves negative pressure slag discharging efficiency through matching of a coaxial commutator with a motor I and a stirring blade, realizes water level control and grease collection by means of a central cylinder and a floating plate, and assists the sedimentation cylinder to discharge slag by a vibration part, thereby comprehensively improving the purification effect of oilfield waste liquid.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a drilling waste liquid treatment device for an oil-gas field.
Background
The technical field of wastewater treatment comprises a physical treatment method, a chemical treatment method, a physicochemical treatment method and a biological treatment method. The core is to separate or transform the pollutant in the waste water to purify the waste water. The physical treatment method separates suspended pollutant through physical action, uses settling pond and other equipment, chemical treatment method utilizes chemical reaction to treat dissolved or colloid pollutant, has coagulation unit, combines physical and chemical actions, includes floatation and other methods, and utilizes microbe to convert organic pollutant, and adopts aerobic and anaerobic treatment.
Wherein, the treatment of the drilling waste liquid of the oil and gas field refers to the treatment of the waste liquid generated in the drilling operation. The waste liquid covers waste drilling cuttings liquid, slurry, waste water and the like, and the treatment means generally comprises separating large particulate matters by a vibrating screen, and then conveying the waste liquid to a buffer device by a screw conveyor. Discharging the slurry and drilling fluid as main materials, adding gel breaker and the like into a coagulation tank through a pipeline mixer to break gel and flocculate, then carrying out solid-liquid separation through a filter press, carrying out subsequent treatment on mud cakes, and carrying out oxidation, reduction and other operation treatment on the separated liquid.
In the prior art, large particles are separated through a vibrating screen and then sent to a buffer device, a gel breaker is added, a coagulation tank is flocculated, a filter press is used for separation, a mud cake is treated, and a separating liquid is subjected to oxidation reduction, so that continuous guiding and backflow mechanisms for the particles are lacked in the process, partial particles are easy to remain, the separation effect is influenced, the collection of oil on the water surface is not efficient enough, the treatment steps are dispersed, the equipment is not matched enough, the purification efficiency is possibly limited, and the treatment effect cannot be comprehensively improved.
Disclosure of Invention
The invention mainly aims to provide an oil-gas field drilling waste liquid treatment device which can effectively solve the problems related to the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides an oil gas field well drilling waste liquid processing apparatus, includes outer barrel, sets up in the inlet tube of outer barrel bottom, sets up in the outlet pipe at outer barrel top, sets up in the oil drain pump of outer barrel upper end, installs in the motor one of outer barrel upper end, the inner chamber middle part of urceolus is provided with the whirl precipitation structure with the inlet tube intercommunication, the inner chamber middle part of urceolus is provided with the cover and locates the whirl precipitation structure outside and with the suspended solid collection structure of urceolus inner chamber intercommunication, the outer wall of urceolus body inner wall and suspended solid collection structure outer wall are provided with a plurality of active carbon filter layers jointly, motor one is connected with the whirl precipitation structure transmission through the shaft coupling.
Preferably, the cyclone sedimentation structure comprises a sedimentation cylinder arranged on the bottom wall of the inner cavity of the outer cylinder body, a separation plate is arranged in the middle of the inner surface of the sedimentation cylinder, a sedimentation groove is formed in the portion, located on the lower side of the separation plate, of the sedimentation cylinder, a cyclone driving shaft for disturbing sewage is arranged on the top wall of the inner surface of the sedimentation cylinder, a coaxial reverser driven by a motor is arranged at the upper end of the cyclone driving shaft, a scraping assembly sleeved on the outer surface of the cyclone driving shaft and used for collecting residues is connected with the other output shaft of the coaxial reverser in a transmission manner, a bump driven by a suspended matter collecting structure is arranged on the upper side of the outer surface of the sedimentation cylinder, the lower end of the cyclone driving shaft is connected with the separation plate in a transmission manner, and a plurality of overflow ports communicated with the suspended matter collecting structure are annularly distributed on the upper portion of the inner surface of the sedimentation cylinder.
Preferably, a plurality of Z-shaped grooves communicated with the inner cavity of the sedimentation tank are formed in annular distribution on the upper end of the isolation plate, arc-shaped diversion grooves are formed in the positions, located at the outlets of the Z-shaped grooves, of the upper ends of the Z-shaped grooves, the portions, located at the inlets of the Z-shaped grooves, of the inner walls of the sedimentation tank are fixedly connected with spoilers, the portions, located at the inner sides of the sedimentation tank, of the water inlet pipe are in vertical states, the outer surfaces of the portions, located at the inner sides of the sedimentation tank, of the water inlet pipe are rotatably connected with a diversion cover through limiting discs, the inner cavity of the diversion cover is communicated with the inner cavity of the water inlet pipe, a plurality of diversion plates are formed in annular distribution on the bottom wall of the inner surface of the diversion cover, and slag discharge pipes are arranged on the bottom wall of the inner surface of the sedimentation tank.
Preferably, the scraping assembly comprises a cross support rod in transmission connection with a reverse output shaft of the coaxial commutator, the cross support rod is sleeved on the outer surface of the rotational flow driving shaft, one side, far away from the rotational flow driving shaft, of the cross support rod is fixedly connected with a U-shaped plate clung to the inner wall of the deposition cylinder, a slag discharging port communicated with the inner cavity of the U-shaped plate is formed in the bottom of the U-shaped plate, a plurality of cleaning shafts are rotatably connected to the inner surface of the opening of one side of the reverse water flow of the U-shaped plate, an air slip ring communicated with the inner cavity of the U-shaped plate is rotatably connected to the lower portion of the outer surface of the rotational flow driving shaft, a plurality of air guide pipes are fixedly connected to the lower portion, close to one side of the rotational flow driving shaft, of the U-shaped plate, and the air guide pipes are communicated with the inner cavities of the adjacent air slip rings and the U-shaped plate.
Preferably, the rotational flow driving shaft is in transmission connection with the forward output shaft of the coaxial commutator, the lower part of the outer surface of the rotational flow driving shaft is fixedly connected with stirring blades, and negative pressure holes communicated with the inner cavity of the rotational flow driving shaft are formed in the outer cambered surfaces of all the blades of the stirring blades.
Preferably, the suspended matter collecting structure comprises a central cylinder fixed on the bottom wall of the inner cavity of the outer cylinder, a sliding ring is slidably connected to the lower portion of the inner wall of the central cylinder, a plurality of communication grooves are formed in the lower side of the inner wall of the central cylinder in a circular distribution mode corresponding to the position where the sliding ring is located, a driving part is slidably connected to the upper side of the inner wall of the central cylinder, a collecting part used for scraping suspended matters and driving the inner wall of the deposition cylinder to vibrate through a protruding block is arranged on the inner surface of the driving part, and a plurality of cables fixedly connected with the sliding ring are annularly distributed on the outer wall of the driving part.
Preferably, the driving part comprises a floating plate which is in sliding connection with the inner wall of the central cylinder, the bottom of the floating plate is an air bag, the outer surface of the floating plate is connected with the sliding ring through a cable, the inner surface of the floating plate is provided with an oil collecting groove which is communicated with the collecting part and is communicated with the oil discharge pump through a hose, and a plurality of motors II used for driving the collecting part to rotate are fixedly arranged on the upper ring of the floating plate in an annular distribution manner.
Preferably, the collecting part comprises a rotating plate which is in sliding connection with the inner surface of the floating plate, a plurality of motors II drive the rotating plate to rotate on the inner side of the floating plate through friction wheels, a plurality of oil scraping blocks are distributed at the lower end of the rotating plate in an array mode, and a plurality of oscillating pieces attached to the outer wall of the deposition cylinder are arranged on the inner cambered surfaces of the oil scraping blocks.
Preferably, the oil scraping block is U-shaped, the opening direction of the oil scraping block is the same as the rotation direction, a wedge block is fixedly connected to one side, with the same rotation direction, of the inner surface of the oil scraping block, an oil guide plate is arranged between the vertical part of the wedge block and the inner wall of the oil scraping block, and the oil scraping block is communicated with the oil collecting groove through the oil guide plate.
Preferably, the vibration piece includes a plurality of arc reeds of array distribution installation in the intrados of the oil scraping block, still including the array distribution through articulated seat with scrape the connecting rod that the intrados of the oil scraping block rotates to be connected, a plurality of one side that the oil scraping block rotation direction was kept away from to the connecting rod is all fixedly connected with rubber ball, rubber ball place highly is unanimous with the lug.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention realizes preliminary separation of particles by utilizing a sedimentation cylinder and a partition plate through matching of a cyclone sedimentation structure with a scraping assembly and a suspended matter collecting structure, combines double cyclone and reverse cleaning of a cyclone driving shaft and a cross supporting rod to enhance impurity separation, improves negative pressure slag discharging efficiency through matching of a coaxial commutator with a motor I and a stirring blade, realizes water level control and grease collection by means of a central cylinder and a floating plate, and assists the sedimentation cylinder to discharge slag by a vibration part, thereby comprehensively improving the purification effect of oilfield waste liquid.
2. The cyclone separator provided by the invention is matched with a deposition cylinder and a separation plate in a cyclone deposition structure, and large-particle residues are primarily deposited and separated by utilizing a deposition groove, the deposition cylinder is matched with a cyclone driving shaft and a scraping assembly, heavy-duty residue impurities are separated by double cyclone centrifugation, a Z-shaped groove is matched with an arc-shaped diversion groove and a spoiler to block and guide particles to fall back into the deposition groove, a diversion cover is matched with the diversion plate to form a small cyclone, so that impurity accumulation is avoided and particle separation effect is enhanced, and the separation plate is matched with the Z-shaped groove in a rotating way to guide upper separated impurities back into the deposition groove, so that the integral separation efficiency is improved.
3. The invention uses the cross support bar in the scraping component to be matched with the U-shaped plate and the cleaning shaft, the reverse water flow cleans the particles on the inner wall of the sedimentation cylinder and collects the particles into the U-shaped plate, the U-shaped plate is matched with the air slip ring, the air duct and the rotational flow driving shaft to form negative pressure to drive the sundries to be wrapped by the sundries to be discharged, the rotational flow driving shaft is matched with the stirring blade and the negative pressure hole to stir sewage to form vortex to separate heavy impurities and enhance the negative pressure effect, and the coaxial reverser drives the scraping component and the rotational flow driving shaft to reversely rotate to improve the impurity cleaning and separating efficiency.
4. The invention realizes sewage water level control and active carbon filter layer protection by matching a central cylinder in a suspended matter collecting structure with a sliding ring, a driving part and a cable, wherein a floating plate of the driving part is matched with a motor II and a collecting part to collect grease impurities on the water surface along with the water level, a rotating plate of the collecting part is matched with an oil scraping block and an oscillating part to scrape grease and discharge the slag through a vibration auxiliary sedimentation cylinder, a wedge block of the oil scraping block is matched with an oil guide plate to efficiently collect grease to an oil collecting tank, and an arc reed of the oscillating part is matched with a connecting rod and a rubber ball to enhance the vibration effect of the sedimentation cylinder and improve the integral purification efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the outer cylinder of the present invention;
FIG. 3 is a schematic diagram of a cyclone precipitation structure according to the present invention;
FIG. 4 is a schematic view of the accessory structure of the separator of the present invention;
FIG. 5 is an enlarged schematic view of the partial structure of FIG. 4A according to the present invention;
FIG. 6 is an enlarged schematic view of a portion of the structure of FIG. 4B in accordance with the present invention;
FIG. 7 is a schematic view of a doctoring assembly of the present invention;
FIG. 8 is a schematic view showing the positional relationship between the U-shaped plate and the cleaning shaft;
FIG. 9 is a schematic structural view of a suspension collection structure of the present invention;
FIG. 10 is a schematic view of the structure of the drive member and the collection member of the present invention;
fig. 11 is a schematic structural diagram of an oscillating member according to the present invention.
In the figure, 1, an outer cylinder, 2, an oil discharge pump, 3, an outlet pipe, 4, an inlet pipe, 5, a first motor, 6, a rotational flow sedimentation structure, 61, a sedimentation cylinder, 611, a sedimentation tank, 612, an overflow port, 62, a coaxial reverser, 63, a rotational flow driving shaft, 631, a negative pressure hole, 632, stirring blades, 64, a scraping component, 641, a cross support rod, 642, a U-shaped plate, 643, an air duct, 644, a cleaning shaft, 645, an air slip ring, 65, a separation plate, 651, a Z-shaped groove, 652, an arc-shaped diversion groove, 653, a diversion cover, 654, a spoiler, 655, a diversion plate, 66, a bump, 67, a slag discharge pipe, 7, a suspended matter collection structure, 71, a central cylinder, 72, a sliding ring, 73, a driving component, 731, a floating plate, 732, a second motor, 733, an oil collecting groove, 74, a collection component, 741, a rotating plate, 742, an oil scraping block, 7421, a wedge block, 7422, an oil guide plate, 743, an oscillating piece, 7431, a connecting rod, 7432, a rubber ball, 7433, a cable, 76 and a connecting groove are communicated.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
First embodiment, refer to fig. 1 and 2, an oil gas field drilling waste liquid processing apparatus, including outer barrel 1, set up in inlet tube 4 of outer barrel 1 bottom, set up in outlet pipe 3 at outer barrel 1 top, set up in the oil drain pump 2 of outer barrel 1 upper end, install in the first motor 5 of outer barrel 1 upper end, outer barrel 1 inner chamber middle part is provided with the whirl sedimentation structure 6 with inlet tube 4 intercommunication, outer barrel 1 inner chamber middle part is provided with the cover and locates whirl sedimentation structure 6 outside and with the suspended solid collection structure 7 of outer barrel 1 inner chamber intercommunication, outer barrel 1 inner wall is provided with a plurality of active carbon filter layers jointly with suspended solid collection structure 7 outer wall, motor 5 passes through the shaft coupling and is connected with whirl sedimentation structure 6 transmission.
In the specific operation process of the invention, the cyclone sedimentation structure 6 is matched with the scraping assembly 64 and the suspended matter collecting structure 7, the primary separation of particles is realized by utilizing the sedimentation cylinder 61 and the partition plate 65, the separation of impurities is enhanced by combining the double cyclone and reverse cleaning of the cyclone driving shaft 63 and the cross supporting rod 641, the negative pressure deslagging efficiency is improved by matching the coaxial reverser 62 with the motor I5 and the stirring blade 632, the water level control and the oil collection are realized by virtue of the central cylinder 71 and the floating plate 731, the deslagging of the sedimentation cylinder 61 is assisted by the oscillating piece 743, the purification effect of the oilfield waste liquid is comprehensively improved, and the operation mode of the invention is further explained by combining the specific structures.
In the second embodiment, on the basis of the first embodiment, the deposition cylinder 61 in the cyclone deposition structure 6 is matched with the separation plate 65, the primary deposition separation of large-particle residues is realized by utilizing the deposition groove 611, the deposition cylinder 61 is matched with the cyclone driving shaft 63 and the scraping assembly 64, heavy-duty residue impurities are separated by double cyclone centrifugation, the Z-shaped groove 651 is matched with the arc-shaped diversion groove 652 and the spoiler 654 to block and guide particles to fall back into the deposition groove 611, the diversion cover 653 is matched with the diversion plate 655 to form a small cyclone, the accumulation of the impurities is avoided and the particle separation effect is enhanced, the separation plate 65 is matched with the Z-shaped groove 651 in a rotating manner, and the upper separated impurities are led back into the deposition groove 611, so that the integral separation efficiency is improved.
Further, referring to fig. 3, the cyclone sedimentation structure 6 includes a sedimentation cylinder 61 installed on the bottom wall of the inner cavity of the outer cylinder body 1, a partition plate 65 is provided in the middle of the inner surface of the sedimentation cylinder 61, a sedimentation groove 611 is provided at a portion of the sedimentation cylinder 61 located at the lower side of the partition plate 65, a cyclone driving shaft 63 for disturbing sewage is provided at the top wall of the inner surface of the sedimentation cylinder 61, a coaxial commutator 62 driven by the first motor 5 is provided at the upper end of the cyclone driving shaft 63, a scraping assembly 64 sleeved on the outer surface of the cyclone driving shaft 63 for collecting residues is connected with another output shaft of the coaxial commutator 62 in a driving manner, a bump 66 driven by the suspension collecting structure 7 is provided at the upper side of the outer surface of the sedimentation cylinder 61, a plurality of overflow ports 612 communicated with the suspension collecting structure 7 are provided at the upper annular distribution of the inner surface of the sedimentation cylinder 61.
Through the deposition cylinder 61 and the inlet tube 4 intercommunication for receive untreated oil field waste liquid, the division board 65 that its bottom set up can carry out preliminary precipitation separation with the residue waste of part macroparticle, further waste liquid after the division board 65 preliminary treatment upwards flows, and carries out further whirl centrifugal separation under the dual effect of striking off subassembly 64 and striking off subassembly 64, and then realizes to heavy type residue, debris's separation.
Further, referring to fig. 4, 5 and 6, a plurality of Z-shaped grooves 651 communicated with the inner cavity of the deposition groove 611 are annularly distributed on the upper end of the isolation plate 65, arc-shaped diversion grooves 652 are respectively arranged at the outlet of the Z-shaped grooves 651, a spoiler 654 is fixedly connected to the part of the inner wall of the deposition groove 611, which is positioned at the inlet of the Z-shaped groove 651, a diversion cover 653 is rotatably connected to the outer surface of the water inlet pipe 4, which is positioned at the inner side of the deposition groove 611, through a limiting disc, the inner cavity of the diversion cover 653 is communicated with the inner cavity of the water inlet pipe 4, a plurality of diversion plates 655 are annularly distributed on the bottom wall of the inner surface of the diversion cover 653, and a slag discharging pipe 67 is arranged on the bottom wall of the inner surface of the deposition groove 611.
Sewage enters the guide cover 653 through the water inlet pipe 4, is sprayed into the inner side of the deposition groove 611 from the guide plate 655 in an inclined spraying mode through the guide plate 655 arranged at the bottom of the guide cover 653, and drives the guide cover 653 to rotate on the outer surface of the water inlet pipe 4 under the backflushing action, so that impurities are prevented from accumulating in the guide cover 653, small rotational flow is formed in the inner side of the deposition groove 611, the centrifugal force generated by the rotational flow can guide large-sized particle impurities to move around, and even if the direction of water flow finally flows upwards, the particles can not continue to float upwards through the isolation plate 65 under the blocking of the vortex plate 654, but are deposited downwards and fall into the bottom of the deposition groove 611;
Further, even if a part of the particles move upward over the spoiler 654 by the impact and water flow, they will collide with the turning point of the Z-shaped groove 651 due to the relatively large inertia of the particles when passing through the Z-shaped groove 651, thereby losing the initial kinetic energy and falling downward, and at the same time, the spacer 65 will rotate due to the driving action of the cyclone driving shaft 63, thereby making the particles move toward the outer arc surface and finally fall back into the deposition groove 611 through the bottom vertical portion;
Meanwhile, due to the rotation of the partition plate 65, the foreign matters separated by the upper cyclone driving shaft 63 and the scraping assembly 64 fall on the upper side of the partition plate 65, and then move toward the Z-shaped groove 651 under the action of the rotational centrifugal force, and finally fall back into the deposition groove 611 through the Z-shaped groove 651.
In the third embodiment, on the basis of the second embodiment, the cross support rod 641 in the scraping assembly 64 is matched with the U-shaped plate 642 and the cleaning shaft 644, particles on the inner wall of the deposition cylinder 61 are cleaned by reverse water flow and collected into the U-shaped plate 642, the U-shaped plate 642 is matched with the air slip ring 645, the air duct 643 and the cyclone driving shaft 63 to form negative pressure so as to promote the foreign matters to be wrapped and discharged, the cyclone driving shaft 63 is matched with the stirring blades 632 and the negative pressure holes 631 to stir sewage to form vortex so as to separate heavy impurities and enhance the negative pressure effect, and the coaxial reverser 62 drives the scraping assembly 64 and the cyclone driving shaft 63 to reversely rotate so as to improve the impurity removal and separation efficiency.
Further, referring to fig. 7, the scraping assembly 64 includes a cross support bar 641 in transmission connection with a reverse output shaft of the coaxial commutator 62, the cross support bar 641 is sleeved on the outer surface of the rotational flow driving shaft 63, one side of the cross support bar far away from the rotational flow driving shaft 63 is fixedly connected with a U-shaped plate 642 which is clung to the inner wall of the deposition cylinder 61, the bottom of the U-shaped plate 642 is provided with a slag discharging port communicated with the inner cavity of the deposition cylinder, one side of the reverse water flow of the plurality of U-shaped plates 642 is provided with a communicating port, the inner surface of the communicating port is rotatably connected with a cleaning shaft 644, the lower part of the outer surface of the rotational flow driving shaft 63 is rotatably connected with an air slip ring 645 communicated with the inner cavity of the air slip ring 645, the lower part of the plurality of the U-shaped plates 642 close to one side of the rotational flow driving shaft 63 is fixedly connected with an air duct 643, and the air duct 643 is communicated with the inner cavity of the adjacent air slip ring 645 and the U-shaped plate 642.
The scraping assembly 64 and the rotational flow driving shaft 63 are driven to reversely rotate through the action of the coaxial reverser 62 and the motor one 5, so that the U-shaped plate 642 slides against the inner wall of the sedimentation cylinder 61, in the process, due to countercurrent movement, the cleaning shaft 644 can relatively rotate, the movement trend of the cleaning shaft 644 is to sweep towards the inner side of the U-shaped plate 642, and then particle impurities attached to the inner wall of the sedimentation cylinder 61 are swept into the inner cavity of the U-shaped plate 642, and the impurities are attached to the inner wall of the U-shaped plate 642 by the action force generated by rotation, meanwhile, due to the fact that the opening at the bottom of the U-shaped plate 642 is immersed in sewage, in the movement process, negative pressure attractive force is generated by sewage flow at the bottom, and further, the rotational flow driving shaft 63 can generate negative pressure attractive force on the inner side of the U-shaped plate 642 through the air duct 643, so that the water in the U-shaped plate 642 is wrapped with the particle impurities to flow downwards, and automatic slag discharging of the U-shaped plate 642 is realized.
Further, referring to fig. 7 and 8, the rotational flow driving shaft 63 is in transmission connection with the forward output shaft of the coaxial commutator 62, the lower part of the outer surface of the rotational flow driving shaft is fixedly connected with a stirring blade 632, and the outer arc surfaces of the blades of the stirring blade 632 are provided with negative pressure holes 631 communicated with the inner cavity of the rotational flow driving shaft 63.
The negative pressure hole 631 rotates under the drive of the cyclone driving shaft 63, sewage in the sedimentation cylinder 61 can be stirred to form a vortex in the rotating process, heavy impurities in the sewage can be thrown around by the vortex to be attached to the inner wall of the sedimentation cylinder 61 or to be deposited downwards, further, the negative pressure hole 631 is positioned at the junction of the vortex and the air, the air in the cyclone driving shaft 63 can be extracted through the negative pressure hole 631 due to the cyclone effect, the negative pressure is formed at the bottom of the U-shaped plate 642 due to the transfer effect of the inner cavity of the cyclone driving shaft 63 and the air duct 643, meanwhile, the U-shaped plate 642 at the bottom of the water flow layer can bear part of the acting force of the cyclone, and the slag can move downwards and finally fall on the separation plate 65 under the combined effect of the two acting forces.
In the fourth embodiment, on the basis of the third embodiment, the central cylinder 71 in the suspended matter collecting structure 7 is matched with the sliding ring 72, the driving part 73 and the cable 75 to realize the sewage water level control and the active carbon filter layer protection, the floating plate 731 of the driving part 73 is matched with the second motor 732 and the collecting part 74 to collect the oil impurities on the water surface along with the water level, the rotating plate 741 of the collecting part 74 is matched with the oil scraping block 742 and the oscillating piece 743 to scrape the oil and discharge the slag through the vibration auxiliary depositing cylinder 61, the wedge-shaped block 7421 of the oil scraping block 742 is matched with the oil guide plate 7422 to efficiently collect the oil stains to the oil collecting groove 733, and the arc-shaped reed 7433 of the oscillating piece 743 is matched with the connecting rod 7431 and the rubber ball 7432 to enhance the vibration effect of the depositing cylinder 61 and improve the integral purifying efficiency.
Further, referring to fig. 9, the suspended matter collecting structure 7 includes a central cylinder 71 fixed on the bottom wall of the inner cavity of the outer cylinder 1, a sliding ring 72 is slidingly connected to the lower portion of the inner wall of the central cylinder 71, a plurality of communication grooves 76 are annularly distributed on the lower side of the inner wall of the central cylinder 71 corresponding to the position of the sliding ring 72, a driving member 73 is slidingly connected to the upper side of the inner wall of the central cylinder 71, a collecting member 74 for scraping suspended matters and driving the inner wall of the deposition cylinder 61 to vibrate through a bump 66 is arranged on the inner surface of the driving member 73, and a plurality of cables 75 fixedly connected with the sliding ring 72 are annularly distributed on the outer wall of the driving member 73.
The sewage pretreated by the cyclone precipitation structure 6 overflows to the inner side of the central cylinder 71 through the overflow port 612, and the treated sewage does not contain particle impurities any more because the opening of the overflow port 612 is higher, and some suspended matters or greasy dopants remain on the inner side of the treated sewage, so that the treated sewage needs to be further treated in a flotation mode;
The driving part 73 is provided with an air bag, under the condition that no sewage exists in the central cylinder 71, the driving part 73 is positioned at the upper side of the inner wall of the central cylinder 71 under the action of gravity, the cable 75 is loosened, the sliding ring 72 is positioned at the bottommost part of the inner wall of the central cylinder 71 under the action of gravity and shields the communicating groove 76, when the sewage is not accumulated to a certain depth, the space where the central cylinder 71 and the active carbon filter layer are positioned is not communicated, and further, the sewage containing greasy dirt is prevented from entering the active carbon layer and polluting the active carbon;
when the sewage reaches a certain depth, the driving part 73 rises under the action of buoyancy, and then the sliding ring 72 is driven to rise through the cable 75, so that the communicating groove 76 is communicated with the inner side of the central cylinder 71, the sewage can pass through the position of the communicating groove 76 where the activated carbon filter layer is located, and the sewage is gradually accumulated and finally flows out through the water outlet pipe 3 through the principle of a communicating vessel.
Further, referring to fig. 10, the driving part 73 includes a floating plate 731 slidably connected to the inner wall of the central cylinder 71, an air bag is disposed at the bottom of the floating plate 731, the outer surface of the floating plate 731 is connected to the sliding ring 72 through a cable 75, an oil collecting groove 733 is formed on the inner surface of the floating plate 731, and the oil collecting groove 733 is communicated with the collecting part 74 and the oil discharging pump 2 through a hose, and a plurality of motors two 732 for driving the collecting part 74 to rotate are fixedly disposed on the upper ring of the floating plate 731 in an annular distribution manner.
The air bags arranged at the bottom of the floating plate 731 are used for enabling the floating plate 731 to move along with the change of the water level of sewage, so that the collecting part 74 is always positioned on the water surface, grease and floater impurities are positioned on the water surface, and the grease impurities are treated by the collecting part 74, so that the grease is prevented from entering the subsequent adsorption process and being stained on the surfaces of adsorption particles to influence the adsorption effect;
Specifically, the second motor 732 is used to drive the collecting member 74 to rotate, so as to improve the treatment efficiency, and the centrifugal effect generated by the rotation is used to make the oil dirt collected by the collecting member 74 enter the oil collecting groove 733 and finally be discharged through the oil discharge pump 2.
Further, referring to fig. 10, the collecting member 74 includes a rotating plate 741 slidably connected to an inner surface of the floating plate 731, the plurality of motors two 732 drive the rotating plate 741 to rotate inside the floating plate 731 through friction wheels, a plurality of oil scraping blocks 742 are disposed at a lower end of the rotating plate 741 in an array, and oscillating members 743 attached to an outer wall of the deposition cylinder 61 are disposed on inner cambered surfaces of the plurality of oil scraping blocks 742.
Through the effect of motor two 732, the rotor 741 drives the scraping oil block 742 constantly and rotates to strike lug 66 constantly through the effect of the vibration piece 743 that scrapes oil block 742 inboard installation, and through striking constantly producing vibration, promote the vibrations of deposition section of thick bamboo 61 inner wall, thereby supplementary interior particulate impurity of deposition section of thick bamboo 61 moves down, improves its particle separation efficiency.
Further, referring to fig. 11, the oil scraping block 742 is U-shaped, the opening direction of the oil scraping block 742 is the same as the rotation direction, a wedge block 7421 is fixedly connected to one side of the inner surface of the oil scraping block 742, which is the same as the rotation direction, and an oil guiding plate 7422 is provided at a portion between the vertical portion of the wedge block 7421 and the inner wall of the oil scraping block 742, and the oil scraping block 742 is communicated with the oil collecting groove 733 through the oil guiding plate 7422.
In the rotating process of the oil scraping block 742, the oil stains on the water surface are scraped through the wedge-shaped block 7421 to enter the inner side of the oil scraping block 742, and further, the oil stains are moved along the direction of the oil guide plate 7422 through centrifugal action to finally enter the oil collecting groove 733, so that concentrated collection treatment is realized.
Further, referring to fig. 11, the oscillating member 743 includes a plurality of arc-shaped reeds 7433 disposed in an inner arc surface of the oil scraping block 742 in an array manner, and further includes a plurality of connecting rods 7431 disposed in an array manner and rotationally connected to the inner arc surface of the oil scraping block 742 through a hinge base, wherein rubber balls 7432 are fixedly connected to one side of the plurality of connecting rods 7431 away from the rotation direction of the oil scraping block 742, and the height of the rubber balls 7432 is consistent with the height of the protruding blocks 66.
During the process that the oscillating piece 743 follows the oil scraping block 742 to rotate, the arc-shaped reed 7433 is pressed by the bump 66 periodically, at this time, the arc-shaped reed 7433 stores force, when the rubber ball 7432 passes over the bump 66, the rubber ball 7432 will rebound under the action of the arc-shaped reed 7433 and impact on the outer wall of the deposition cylinder 61, so as to generate vibration, and promote the particles to separate from the inner wall of the deposition cylinder 61.
It should be further noted that, the oil drain pump 2, the first motor 5, and the second motor 732 are all conventional devices in the prior art, and the operation process, the installation manner, and the control manner are all conventional technical means in the prior art, so that the specific structure, the installation manner, and the operation principle thereof are not shown and described in detail in the present invention.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The oil-gas field drilling waste liquid treatment device comprises an outer cylinder body (1), a water inlet pipe (4) arranged at the bottom of the outer cylinder body (1), a water outlet pipe (3) arranged at the top of the outer cylinder body (1), an oil discharge pump (2) arranged at the upper end of the outer cylinder body (1), and a motor I (5) arranged at the upper end of the outer cylinder body (1), and is characterized in that a cyclone precipitation structure (6) communicated with the water inlet pipe (4) is arranged in the middle of an inner cavity of the outer cylinder body (1), a suspended matter collecting structure (7) sleeved outside the cyclone precipitation structure (6) and communicated with the inner cavity of the outer cylinder body (1) is arranged in the middle of the inner cavity of the outer cylinder body (1), and a plurality of active carbon filter layers are jointly arranged on the inner wall of the outer cylinder body (1) and the outer wall of the suspended matter collecting structure (7), and the motor I (5) is in transmission connection with the cyclone precipitation structure (6) through a coupler.
2. The device for treating the drilling waste liquid of the oil and gas field according to claim 1, wherein the cyclone sedimentation structure (6) comprises a sedimentation cylinder (61) arranged on the bottom wall of the inner cavity of the outer cylinder body (1), a separation plate (65) is arranged in the middle of the inner surface of the sedimentation cylinder (61), a sedimentation groove (611) is formed in the part, located on the lower side of the separation plate (65), of the sedimentation cylinder (61), a cyclone driving shaft (63) for disturbing sewage is arranged on the top wall of the inner surface of the sedimentation cylinder (61), a coaxial commutator (62) driven by a motor I (5) is arranged at the upper end of the cyclone driving shaft (63), a scraping assembly (64) sleeved on the outer surface of the cyclone driving shaft (63) is connected in a transmission mode, a bump (66) driven by a suspended matter collecting structure (7) is arranged on the upper side of the outer surface of the sedimentation cylinder (61), and a plurality of overflow ports (612) communicated with the suspended matter collecting structure (7) are formed in an annular distribution mode in the upper portion of the inner surface of the sedimentation cylinder (61).
3. The oil-gas field drilling waste liquid treatment device according to claim 2, wherein a plurality of Z-shaped grooves (651) communicated with the inner cavity of the sedimentation tank (611) are formed in the annular distribution of the upper end of the isolation plate (65), arc-shaped diversion grooves (652) are formed in the positions, located at the outlets of the Z-shaped grooves (651), of the upper ends of the Z-shaped grooves (651), flow-disturbing plates (654) are fixedly connected to the positions, located at the inlets of the Z-shaped grooves (651), of the inner walls of the sedimentation tank (611), flow-disturbing plates (654) are fixedly connected to the outer surfaces, located at the inner sides of the sedimentation tank (611), of the water inlet pipe (4) in a vertical state, of the inner cavities of the flow-distributing plates (653) are communicated with the inner cavities of the water inlet pipe (4) through limiting plates, a plurality of diversion plates (655) are formed in the annular distribution of the bottom wall of the inner surfaces of the flow-distributing tank (611), and slag discharging pipes (67) are arranged on the bottom wall of the inner surfaces of the sedimentation tank (611).
4. The device for treating the drilling waste liquid of the oil and gas field of claim 2, wherein the scraping assembly (64) comprises a cross support rod (641) in transmission connection with a reverse output shaft of the coaxial commutator (62), the cross support rod (641) is sleeved on the outer surface of the rotational flow driving shaft (63), one side, far away from the rotational flow driving shaft (63), of the cross support rod is fixedly connected with a U-shaped plate (642) which is clung to the inner wall of the deposition cylinder (61), a slag discharging port communicated with the inner cavity of the U-shaped plate is formed in the bottom of the U-shaped plate (642), the inner surfaces of the communication ports are rotatably connected with cleaning shafts (644) at one side, opposite water flows, of the U-shaped plate (642), the lower parts of the outer surfaces of the rotational flow driving shafts (63) are rotatably connected with air slide rings (645) communicated with the inner cavities of the rotational flow driving shaft (62), the lower parts, close to one side of the rotational flow driving shaft (63), of the U-shaped plates (642) are fixedly connected with air guide pipes (643), and the adjacent air slide rings (645) are communicated with the inner cavities of the U-shaped plates (642).
5. The device for treating waste drilling fluid in an oil and gas field according to claim 4, wherein the rotational flow driving shaft (63) is in transmission connection with a forward output shaft of the coaxial commutator (62), a stirring blade (632) is fixedly connected to the lower portion of the outer surface of the rotational flow driving shaft, and negative pressure holes (631) communicated with the inner cavity of the rotational flow driving shaft (63) are formed in the outer cambered surfaces of the blades of the stirring blade (632).
6. The device for treating the drilling waste liquid of the oil and gas field according to claim 2, wherein the suspended matter collecting structure (7) comprises a central cylinder (71) fixed on the bottom wall of the inner cavity of the outer cylinder body (1), sliding rings (72) are slidingly connected to the lower part of the inner wall of the central cylinder (71), a plurality of communication grooves (76) are annularly distributed on the lower side of the inner wall of the central cylinder (71) corresponding to the positions of the sliding rings (72), a driving part (73) is slidingly connected to the upper side of the inner wall of the central cylinder (71), a collecting part (74) for scraping suspended matters and driving the inner wall of the deposition cylinder (61) to vibrate through a bump (66) is arranged on the inner surface of the driving part (73), and a plurality of cables (75) fixedly connected with the sliding rings (72) are annularly distributed on the outer wall of the driving part (73).
7. The device for treating waste drilling fluid in an oil and gas field according to claim 6, wherein the driving part (73) comprises a floating plate (731) which is slidably connected with the inner wall of the central cylinder (71), the bottom of the floating plate (731) is an air bag, the outer surface of the floating plate (731) is connected with the sliding ring (72) through a cable (75), the inner surface of the floating plate (731) is provided with an oil collecting groove (733) which is communicated with the collecting part (74) and is communicated with the oil discharging pump (2) through a hose, and a plurality of motors II (732) for driving the collecting part (74) to rotate are fixedly arranged on the upper ring of the floating plate (731) in an annular distribution manner.
8. The device for treating waste drilling fluid in an oil and gas field according to claim 7, wherein the collecting member (74) comprises a rotating plate (741) slidably connected with the inner surface of the floating plate (731), a plurality of motors II (732) are driven by friction wheels to rotate on the inner side of the floating plate (731), a plurality of oil scraping blocks (742) are distributed at the lower end of the rotating plate (741) in an array manner, and oscillating pieces (743) attached to the outer wall of the deposition cylinder (61) are arranged on the intrados of the oil scraping blocks (742).
9. The device for treating drilling waste liquid of an oil and gas field of claim 8, wherein the oil scraping block (742) is U-shaped, the opening direction of the oil scraping block is the same as the rotation direction, a wedge block (7421) is fixedly connected to one side of the inner surface of the oil scraping block (742) which is the same as the rotation direction, an oil guide plate (7422) is arranged at the part between the vertical part of the wedge block (7421) and the inner wall of the oil scraping block (742), and the oil scraping block (742) is communicated with the oil collecting groove (733) through the oil guide plate (7422).
10. The device for treating the drilling waste liquid of the oil and gas field of claim 9, wherein the oscillating piece (743) comprises a plurality of arc-shaped reeds (7433) which are arranged on the intrados of the oil scraping block (742) in an array manner, and further comprises connecting rods (7431) which are rotationally connected with the intrados of the oil scraping block (742) through hinge bases in an array manner, wherein rubber balls (7432) are fixedly connected to one sides, far away from the rotation direction of the oil scraping block (742), of the connecting rods (7431), and the heights of the rubber balls (7432) are consistent with those of the protruding blocks (66).
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