Oil field fracturing fluid wastewater treatment device

Abstract

The utility model relates to the technical field of fracturing fluid waste water treatment, and discloses an oil field fracturing fluid waste water treatment device which comprises a waste water treatment device, a cover plate and two observation plates. The two observation plates are located on the left side and the right side of the wastewater treatment device respectively and fixedly connected with the left side and the right side of the wastewater treatment device, and the observation plates are made of transparent materials. The problems that chemical substances contained in the oil field fracturing fluid wastewater need to be treated in the process of treating the oil field fracturing fluid wastewater through a wastewater treatment device, but the wastewater treatment device is not provided with a device capable of rapidly and fully mixing the chemical agents with the oil field fracturing fluid wastewater are solved; therefore, the treatment efficiency of the oilfield fracturing fluid wastewater is reduced, and the use by a user is inconvenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of fracturing fluid wastewater treatment, in particular to an oilfield fracturing fluid wastewater treatment device. Background Art

[0002] The oilfield fracturing fluid wastewater treatment device is a device used to treat oilfield fracturing fluid wastewater. This device usually includes a pretreatment unit, a separation unit, a filtration unit, a chemical treatment unit and a post-treatment unit. It treats the fracturing fluid wastewater through physical, chemical and biological methods to remove suspended matter, oil pollution, chemicals and microorganisms, so that the wastewater meets the discharge standard or reuse standard. This device can effectively reduce the impact of wastewater generated during oilfield exploitation on the environment, and can also realize the resource utilization of wastewater.

[0003] In the process of treating oilfield fracturing fluid wastewater, the wastewater treatment device first needs to send the original fracturing fluid wastewater to the pretreatment unit for physical treatment, such as filtering to remove larger suspended matter and solid particles, and then send the pretreated wastewater to the separation unit to separate the oil and water by gravity or centrifugal force. Oil-water separation technology is usually used, such as sedimentation tanks, centrifugal separators, etc., and the separated water will still contain tiny particles and residual oil, which needs to be further filtered through the filtration unit to remove fine suspended matter and oil. The water treated in the previous steps will also contain some chemical substances. Through the chemical treatment unit, appropriate chemical agents are added for neutralization, precipitation or oxidation to remove organic matter, heavy metal ions, etc. in the water. Finally, the chemically treated water may need to be disinfected, deodorized and other subsequent treatments to ensure that the discharge or reuse of the wastewater complies with relevant standards. Through the above treatment steps, the oilfield fracturing fluid wastewater treatment device can effectively remove suspended matter, oil pollution, chemical substances and microorganisms in the wastewater, so as to meet the discharge standard or reuse standard. The problem with the above technology is that in the process of treating the oilfield fracturing fluid wastewater through the wastewater treatment device, the chemical substances contained in the oilfield fracturing fluid wastewater need to be treated, but the wastewater treatment device itself does not have a device that can quickly and fully mix the chemical agents with the oilfield fracturing fluid wastewater, thereby reducing the treatment efficiency of the oilfield fracturing fluid wastewater, and is therefore inconvenient for users to use. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides an oilfield fracturing fluid wastewater treatment device which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: an oilfield fracturing fluid wastewater treatment device comprises a wastewater treatment device, a cover plate and two observation plates, wherein the cover plate is located at the top of the wastewater treatment device and is fixedly installed with the top of the wastewater treatment device by bolts, the two observation plates are respectively located at the left and right sides of the wastewater treatment device and are fixedly connected with the left and right sides of the wastewater treatment device, and the material of the observation plates is a transparent material; the left and right sides of the inner cavity of the wastewater treatment device are both provided with a mixing mechanism used in conjunction with the fracturing fluid wastewater; the top of the cover plate is provided with a transmission mechanism used in conjunction with the mixing mechanism; the bottom of the inner cavity of the wastewater treatment device is provided with a filtering mechanism used in conjunction with the fracturing fluid wastewater; the bottom of the inner cavity of the wastewater treatment device is provided with a drainage mechanism used in conjunction with the fracturing fluid wastewater.

[0006] In order to improve the mixing effect of oilfield fracturing fluid wastewater and chemical agents, preferably, the mixing mechanism includes a rotating rod, a mixing rod and a connecting rod, and the rotating rod, the mixing rod and the connecting rod are all located in the inner cavity of the wastewater treatment device. The number of the mixing rods is multiple and evenly distributed on the surface of the rotating rod and fixedly connected to the surface of the rotating rod. The number of the connecting rods is multiple and evenly distributed on the surfaces of the mixing rods around and fixedly connected to the surfaces of the mixing rods. By setting up the mixing mechanism, the rotating rod can achieve rapid and sufficient mixing of the oilfield fracturing fluid wastewater and the chemical agents through the mutual cooperation of the multiple mixing rods and the connecting rods, thereby avoiding the situation where the oilfield fracturing fluid wastewater and the chemical agents cannot be quickly mixed and treated after being added to the inner cavity of the wastewater treatment device.

[0007] In order to improve the ease of use of the mixing mechanism, preferably, the transmission mechanism includes a double-headed motor, two transmission gears and two connecting gears, the double-headed motor is located at the top of the cover plate, the two transmission gears are respectively located on the left and right sides of the double-headed motor and are fixedly connected to the left and right sides of the double-headed motor, the two connecting gears are respectively located on the top of the two rotating rods and are fixedly connected to the top of the rotating rods, the connecting ends of the connecting gears and the top of the rotating rods are rotatably connected to the inner cavity of the cover plate, and the bottom of the transmission gear is meshingly connected to the top of the connecting gear. By setting up the transmission mechanism, the double-headed motor can quickly drive the mixing mechanisms on both sides for use through the mutual cooperation of the transmission gears and the connecting gears, and the mixing time of oilfield fracturing fluid wastewater and chemical agents is saved through the mixing mechanisms on both sides, thereby improving the treatment efficiency of oilfield fracturing fluid wastewater.

[0008] In order to improve the impurity filtering effect of oilfield fracturing fluid wastewater, preferably, the filtering mechanism includes a fixed block, a filter cotton block and a filter hole, the fixed block is located at the bottom of the inner cavity of the wastewater treatment device and is fixedly installed with the inner wall of the wastewater treatment device by bolts, the filter cotton block is located in the inner cavity of the fixed block and is fixedly installed with the inner cavity of the fixed block, the number of the filter holes is multiple and evenly distributed in the inner cavity of the fixed block, by setting the filtering mechanism, the fixed block can achieve the effect of efficiently filtering the impurities in the oilfield fracturing fluid wastewater through the filter cotton block, and after the filtration is completed, the oilfield fracturing fluid wastewater can be adapted to the drainage mechanism through the multiple filter holes, thereby avoiding the situation where impurities in the oilfield fracturing fluid wastewater are discharged by the drainage mechanism.

[0009] In order to improve the drainage convenience of oilfield fracturing fluid wastewater, preferably, the drainage mechanism includes a pumping box, two pumping pipes and two drain pipes. The pumping box is located at the bottom of the inner cavity of the wastewater treatment device and is fixedly installed with the inner wall of the wastewater treatment device by bolts. The two pumping pipes are respectively located on the left and right sides of the inner cavity of the pumping box and are fixedly connected with the inner cavity of the pumping box. The two drain pipes are respectively located on the front and rear sides of the pumping box and are fixedly connected with the inner cavity of the pumping box. By setting up the drainage mechanism, the pumping box can quickly absorb the oilfield fracturing fluid wastewater through the pumping pipes on both sides and efficiently discharge it through the drain pipes on both sides.

[0010] In order to improve the drainage effect of oilfield fracturing fluid wastewater, preferably, the front and rear sides of the left and right sides of the wastewater treatment device are fixedly connected with reducers, the inner cavity of the reducer is fixedly connected with an inner lining plate, the material of the inner lining plate is corrosion-resistant ceramic plate, and the left and right sides of the drain pipe are fixedly connected with the inner cavity of the reducer. By arranging the reducer and the inner lining plate, the reducer can cooperate with the drain pipe to quickly discharge the filtered oilfield fracturing fluid wastewater, and the inner lining plate can prevent the reducer from being corroded by the oilfield fracturing fluid wastewater.

[0011] In order to improve the installation convenience of the rotating motor, preferably, the bottom of the double-headed motor is fixedly connected with a support frame, and the bottom of the support frame and the top of the cover plate are fixedly installed by bolts. By setting the support frame, the support frame can facilitate the user to quickly install the double-headed motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model pours the oilfield fracturing fluid wastewater into the inner cavity of the wastewater treatment device by arranging a wastewater treatment device, a cover plate, an observation plate, a mixing mechanism, a transmission mechanism, a filtering mechanism and a drainage mechanism. After the oilfield fracturing fluid wastewater enters the inner cavity of the wastewater treatment device, the impurities inside the oilfield fracturing fluid wastewater can be retained on the top of the filter cotton block through the cooperation of the fixed block, the filter cotton block and the filter hole, and then the chemical agents for decomposing the chemical substances are poured in proportion, and then the top of the wastewater treatment device is sealed through the cover plate, and then the double-headed motor is started, and the double-headed motor will drive the transmission gear to rotate through the output ends on both sides of itself, and the transmission gear will quickly drive the connecting gear to rotate through the meshing connection of the connecting gear during the rotation, and the connecting gear will quickly drive the rotating rod and the mixing rod to rotate during the rotation, and the rotating rod and the mixing rod will also bring The movable connecting rod is rotated to achieve the effect of fully mixing the oilfield fracturing fluid wastewater and the chemical agents, so as to improve the effect of quickly decomposing the chemical substances in the oilfield fracturing fluid wastewater. In the process of mixing the oilfield fracturing fluid wastewater and the chemical agents, the mixing situation inside the wastewater treatment device can be observed through the observation plate, and after mixing to a certain degree, the pumping box is started, and the pumping box will absorb the treated oilfield fracturing fluid wastewater through the pumping pipes on both sides, and quickly discharge it through the cooperation of the two drainage pipes and the reducer on the front and rear sides. In the process of discharge, the oilfield fracturing fluid wastewater above the filtering mechanism will continuously dock with the filter cotton block, so as to achieve the effect of continuously filtering and treating the oilfield fracturing fluid wastewater, and after the filter cotton block has been used to a certain extent, the bolts used to install the fixing block can be removed to remove and clean the impurities intercepted on the top of the filter cotton block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2 The embodiment of the utility model provides a three-dimensional cross-sectional view;

[0016] Figure 3 It is a schematic diagram of the combination of the transmission mechanism and the mixing mechanism provided by the embodiment of the utility model;

[0017] Figure 4 It is an exploded schematic diagram of a filtering mechanism provided by an embodiment of the utility model;

[0018] Figure 5 It is a connection diagram of the drainage mechanism provided in an embodiment of the utility model.

[0019] In the figure: 1. wastewater treatment device; 2. cover plate; 3. observation plate; 4. mixing mechanism; 5. transmission mechanism; 6. filtering mechanism; 7. drainage mechanism; 401. rotating rod; 402. mixing rod; 403. connecting rod; 501. double-headed motor; 502. transmission gear; 503. connecting gear; 601. fixing block; 602. filter cotton block; 603. filtering hole; 701. water pumping box; 702. water pumping pipe; 703. drainage pipe; 8. reducing pipe; 9. inner lining plate; 10. supporting frame. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5As shown, an oilfield fracturing fluid wastewater treatment device provided by an embodiment of the utility model comprises a wastewater treatment device 1, a cover plate 2 and two observation plates 3, the cover plate 2 is located at the top of the wastewater treatment device 1 and is fixedly installed with the top of the wastewater treatment device 1 by bolts, the two observation plates 3 are respectively located on the left and right sides of the wastewater treatment device 1 and are fixedly connected with the left and right sides of the wastewater treatment device 1, and the material of the observation plates 3 is a transparent material; a mixing mechanism 4 used in conjunction with fracturing fluid wastewater is arranged on the left and right sides of the inner cavity of the wastewater treatment device 1; a transmission mechanism 5 used in conjunction with the mixing mechanism 4 is arranged on the top of the cover plate 2; a filtering mechanism 6 used in conjunction with fracturing fluid wastewater is arranged at the bottom of the inner cavity of the wastewater treatment device 1; the inner cavity of the wastewater treatment device 1 The bottom of the device is provided with a drainage mechanism 7 used in conjunction with fracturing fluid wastewater, the mixing mechanism 4 includes a rotating rod 401, a mixing rod 402 and a connecting rod 403, the rotating rod 401, the mixing rod 402 and the connecting rod 403 are all located in the inner cavity of the wastewater treatment device 1, the number of the mixing rods 402 is multiple and evenly distributed on the surface of the rotating rod 401 and fixedly connected to the surface of the rotating rod 401, the number of the connecting rods 403 is multiple and evenly distributed on the surface of the mixing rod 402 around and fixedly connected to the surface of the mixing rod 402, by setting the mixing mechanism 4, the rotating rod 401 can achieve the goal of quickly and fully mixing the oilfield fracturing fluid wastewater and the chemical agent through the mutual cooperation of the multiple mixing rods 402 and the connecting rod 403, avoiding the oilfield fracturing After the liquid wastewater and chemical agents are added into the inner cavity of the wastewater treatment device 1, the mixing treatment cannot be carried out quickly. The transmission mechanism 5 includes a double-headed motor 501, two transmission gears 502 and two connecting gears 503. The double-headed motor 501 is located at the top of the cover plate 2. The two transmission gears 502 are respectively located on the left and right sides of the double-headed motor 501 and are fixedly connected to the left and right sides of the double-headed motor 501. The two connecting gears 503 are respectively located on the top of the two rotating rods 401 and are fixedly connected to the top of the rotating rods 401. The connecting ends of the connecting gears 503 and the top of the rotating rods 401 are both rotatably connected to the inner cavity of the cover plate 2. The bottom of the transmission gear 502 is meshed with the top of the connecting gear 503. By setting the transmission mechanism 5, the double-headed motor 501 is The motor 501 can quickly drive the mixing mechanisms 4 on both sides to be used through the cooperation of the transmission gear 502 and the connecting gear 503. The mixing mechanisms 4 on both sides save the mixing time of oilfield fracturing fluid wastewater and chemical agents, thereby improving the treatment efficiency of oilfield fracturing fluid wastewater. The filtering mechanism 6 includes a fixed block 601, a filter cotton block 602 and a filter hole 603. The fixed block 601 is located at the bottom of the inner cavity of the wastewater treatment device 1 and is fixedly installed with the inner wall of the wastewater treatment device 1 by bolts. The filter cotton block 602 is located in the inner cavity of the fixed block 601 and is fixedly installed with the inner cavity of the fixed block 601. The number of filter holes 603 is multiple and evenly distributed in the inner cavity of the fixed block 601. By setting the filtering mechanism 6,The fixed block 601 can effectively filter the impurities in the oilfield fracturing fluid wastewater through the filter cotton block 602, and after the filtration is completed, the oilfield fracturing fluid wastewater can be adapted to the drainage mechanism 7 through multiple filter holes 603, so as to avoid the impurities in the oilfield fracturing fluid wastewater being discharged by the drainage mechanism 7. The drainage mechanism 7 includes a pumping box 701, two pumping pipes 702 and two drainage pipes 703. The pumping box 701 is located at the bottom of the inner cavity of the wastewater treatment device 1 and is fixed to the inner wall of the wastewater treatment device 1 by bolts. The two pumping pipes 702 are respectively located on the left and right sides of the inner cavity of the pumping box 701 and are fixedly connected to the inner cavity of the pumping box 701. The two drainage pipes 703 are respectively located on the front and rear sides of the pumping box 701 and are fixedly connected to the inner cavity of the pumping box 701. By setting the drainage mechanism 7, the pumping box 701 can quickly drain the impurities through the pumping pipes 702 on both sides. The wastewater from oilfield fracturing fluid is absorbed and discharged efficiently through the drainage pipes 703 on both sides. The front and rear sides of the left and right sides of the wastewater treatment device 1 are fixedly connected with reducers 8. The inner cavity of the reducer 8 is fixedly connected with an inner lining plate 9. The material of the inner lining plate 9 is a corrosion-resistant ceramic plate. The left and right sides of the drainage pipe 703 are fixedly connected with the inner cavity of the reducer 8. By setting the reducer 8 and the inner lining plate 9, the reducer 8 can cooperate with the drainage pipe 703 to quickly discharge the filtered oilfield fracturing fluid wastewater, and the inner lining plate 9 can prevent the reducer 8 from being corroded by the oilfield fracturing fluid wastewater. The bottom of the double-headed motor 501 is fixedly connected with a support frame 10. The bottom of the support frame 10 is fixedly installed with the top of the cover plate 2 by bolts. By setting the support frame 10, the support frame 10 can facilitate users to quickly install the double-headed motor 501.

[0023] The working principle of this utility model:

[0024] When in use, the oilfield fracturing fluid wastewater is poured into the inner cavity of the wastewater treatment device 1. After the oilfield fracturing fluid wastewater enters the inner cavity of the wastewater treatment device 1, the impurities inside the oilfield fracturing fluid wastewater can be retained on the top of the filter cotton block 602 through the cooperation of the fixed block 601, the filter cotton block 602 and the filter hole 603, and then the chemical agents for decomposing the chemical substances are poured in proportion, and then the top of the wastewater treatment device 1 is sealed through the cover plate 2, and then the double-headed motor 501 is started. The double-headed motor 501 will drive the transmission gear 502 to rotate through the output ends on both sides of itself, and the transmission gear 502 will quickly drive the connecting gear 503 to rotate through the meshing connection of the connecting gear 503 during the rotation, and the connecting gear 503 will quickly drive the rotating rod 401 and the mixing rod 402 to rotate during the rotation, and the rotating rod 401 and the mixing rod 402 will also drive the connecting rod 403 to rotate during the rotation. In this way, the oilfield fracturing fluid wastewater and chemical agents are fully mixed, thereby improving the effect of quickly decomposing the chemical substances in the oilfield fracturing fluid wastewater. In the process of mixing the oilfield fracturing fluid wastewater and chemical agents, the mixing situation inside the wastewater treatment device 1 can be observed through the observation plate 3, and after mixing to a certain degree, the pumping box 701 is started, and the pumping box 701 will absorb the treated oilfield fracturing fluid wastewater through the pumping pipes 702 on both sides, and quickly discharge it through the cooperation of the two drainage pipes 703 on the front and rear sides and the reducer 8. In the process of discharge, the oilfield fracturing fluid wastewater above the filtering mechanism 6 will continuously dock with the filter cotton block 602, so as to achieve the effect of continuously filtering and treating the oilfield fracturing fluid wastewater, and after the filter cotton block 602 has been used to a certain extent, the bolts used to install the fixing block 601 can be removed to remove and clean the impurities intercepted on the top of the filter cotton block 602.

[0025] The specific models and specifications of the wastewater treatment device 1, double-head motor 501 and pumping box 701 proposed in this application need to be selected and determined based on the actual specifications of the device. The specific selection calculation method, line connection method and control method all adopt the existing technology in the field, so they will not be described in detail.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] The above description is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent will not depart from the scope of the technical solution of the utility model.

Claims

1. An oilfield fracturing fluid wastewater treatment device, comprising a wastewater treatment device (1), a cover plate (2) and two observation plates (3), characterized in that: The cover plate (2) is located on the top of the wastewater treatment device (1) and is fixedly mounted to the top of the wastewater treatment device (1) by means of bolts; the two observation plates (3) are respectively located on the left and right sides of the wastewater treatment device (1) and are fixedly connected to the left and right sides of the wastewater treatment device (1); the material of the observation plates (3) is a transparent material; The left and right sides of the inner cavity of the wastewater treatment device (1) are provided with mixing mechanisms (4) for use with fracturing fluid wastewater; A transmission mechanism (5) for use with the mixing mechanism (4) is provided on the top of the cover plate (2); The bottom of the inner cavity of the wastewater treatment device (1) is provided with a filtering mechanism (6) used in conjunction with fracturing fluid wastewater; The bottom of the inner cavity of the wastewater treatment device (1) is provided with a drainage mechanism (7) used in conjunction with fracturing fluid wastewater; The mixing mechanism (4) comprises a rotating rod (401), a mixing rod (402) and a connecting rod (403); the rotating rod (401), the mixing rod (402) and the connecting rod (403) are all located in the inner cavity of the wastewater treatment device (1); the mixing rods (402) are multiple and evenly distributed on the surface of the rotating rod (401) and fixedly connected to the surface of the rotating rod (401); the connecting rods (403) are multiple and evenly distributed on the surface of the mixing rod (402) and fixedly connected to the surface of the mixing rod (402); The transmission mechanism (5) comprises a double-headed motor (501), two transmission gears (502) and two connecting gears (503); the double-headed motor (501) is located at the top of the cover plate (2); the two transmission gears (502) are respectively located at the left and right sides of the double-headed motor (501) and are fixedly connected to the left and right sides of the double-headed motor (501); the two connecting gears (503) are respectively located at the tops of two rotating rods (401) and are fixedly connected to the tops of the rotating rods (401); the connecting ends of the connecting gears (503) and the tops of the rotating rods (401) are both rotatably connected to the inner cavity of the cover plate (2); and the bottom of the transmission gear (502) is meshingly connected to the top of the connecting gears (503); The filtering mechanism (6) comprises a fixed block (601), a filter cotton block (602) and filter holes (603); the fixed block (601) is located at the bottom of the inner cavity of the wastewater treatment device (1) and is fixedly mounted to the inner wall of the wastewater treatment device (1) by bolts; the filter cotton block (602) is located in the inner cavity of the fixed block (601) and is fixedly mounted to the inner cavity of the fixed block (601); and the number of the filter holes (603) is multiple and evenly distributed in the inner cavity of the fixed block (601); The drainage mechanism (7) comprises a water pumping box (701), two water pumping pipes (702) and two drainage pipes (703); the water pumping box (701) is located at the bottom of the inner cavity of the wastewater treatment device (1) and is fixedly mounted to the inner wall of the wastewater treatment device (1) by means of bolts; the two water pumping pipes (702) are respectively located on the left and right sides of the inner cavity of the water pumping box (701) and are fixedly connected to the inner cavity of the water pumping box (701); and the two drainage pipes (703) are respectively located at the front and rear sides of the water pumping box (701) and are fixedly connected to the inner cavity of the water pumping box (701).

2. The oilfield fracturing fluid wastewater treatment device according to claim 1, characterized in that: The front and rear sides of the left and right sides of the wastewater treatment device (1) are fixedly connected to reducers (8); the inner cavity of the reducer (8) is fixedly connected to an inner lining plate (9); the inner lining plate (9) is made of a corrosion-resistant ceramic plate; the left and right sides of the drainage pipe (703) are fixedly connected to the inner cavity of the reducer (8).

3. The oilfield fracturing fluid wastewater treatment device according to claim 1, characterized in that: The bottom of the double-headed motor (501) is fixedly connected to a support frame (10), and the bottom of the support frame (10) and the top of the cover plate (2) are fixedly mounted by bolts.

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