Fracturing flow-back fluid precipitation separation equipment

Abstract

The utility model relates to the technical field of sewage treatment, and provides fracturing flow-back fluid precipitation separation equipment which comprises a precipitation tank and a filter box, the inner wall of the precipitation tank is fixedly connected with a first partition plate and a second partition plate respectively, and the inner bottom of the precipitation tank is fixedly connected with a first splitter plate and a second splitter plate respectively. The first partition plate, the second partition plate, the first splitter plate and the second splitter plate divide the sedimentation tank into a first cavity, a second cavity and a third cavity. The device is reasonable in structure, flow-back liquid is separated through the first cavity, the second cavity and the third cavity in the inner wall of the sedimentation tank, sedimentation of the flow-back liquid is facilitated, meanwhile, a flocculating agent or other agents are added into the sedimentation tank, a rotating shaft and mixing blades are driven by a motor to rotate, mixing of the flow-back liquid and the agents is achieved, and the sedimentation effect is improved. And impurities in the flowback fluid can be conveniently precipitated.

Description

TECHNICAL FIELD

[0001] The utility model discloses the technical field of sewage treatment, and specifically relates to a fracturing flow-back fluid sedimentation and separation equipment. BACKGROUND

[0002] Fracturing technology has been widely used in the reservoir reconstruction of low-permeability oil fields, and guar gum fracturing fluid is the mainstream system of fracturing fluid. Because the composition of the guar gum fracturing fluid flow-back fluid is complex and difficult to handle, it has brought unavoidable pollution to the oilfield development site. In addition, the configuration of the guar gum fracturing fluid requires a large amount of freshwater resources, which brings certain economic pressure to some remote water-deficient areas. Therefore, the reuse of guar gum fracturing flow-back fluid has always been a hot and difficult point in oilfield development. In view of the current situation that the guar gum fracturing fluid flow-back fluid cannot be effectively recycled, the influence analysis and elimination method research of the flow-back fluid reuse have very far-reaching significance.

[0003] It is known that the Chinese open authorization utility model: (publication number: CN222204817U) discloses a fracturing flow-back fluid sedimentation and separation equipment, which comprises a separation equipment main body, a feed inlet is formed in the bottom of the separation equipment main body, a stirring cavity is arranged on the right side of the bottom of the separation equipment main body, a stirring motor is arranged above the inside of the stirring cavity, a transmission bevel gear is arranged at the bottom of the stirring motor, a driven bevel gear is connected to the right side of the transmission bevel gear, and a movable worm is connected to the right side of the driven bevel gear. The separation equipment main body is in communication with the feed inlet, so that the sewage in the separation equipment main body can reach the inside of the stirring cavity through the feed inlet. The stirring motor drives the transmission bevel gear, the transmission bevel gear is engaged with the driven bevel gear, the movable worm is driven by the driven bevel gear, the movable worm is engaged with the coaxial worm gear, the coaxial worm gear rotates to drive the stirring main shaft, and thus the stirring is completed.

[0004] However, it is found in the implementation of the related technology that the above technical scheme has the following problems: in the process of treating the flow-back fluid, a large amount of impurities exist in the flow-back fluid, and the impurities in the flow-back fluid cannot be effectively treated by filtering only. Therefore, a fracturing flow-back fluid sedimentation and separation equipment is proposed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a fracturing flow-back fluid sedimentation and separation equipment, which solves the problem that a large amount of impurities exist in the flow-back fluid in the process of treating the flow-back fluid in the related technology, and the impurities in the flow-back fluid cannot be effectively treated by filtering only.

[0006] The technical scheme of the utility model is as follows: a fracturing flow-back fluid sedimentation and separation equipment comprises a sedimentation tank and a filter box.

[0007] The inner wall of the sedimentation tank is fixedly connected with a partition plate one and a partition plate two respectively, and the inner bottom of the sedimentation tank is fixedly connected with a flow divider one and a flow divider two respectively.

[0008] The surface of the sedimentation tank is fixedly connected with multiple groups of stirring components, the inner wall of the chamber three is clamped with a partition cage, the inside of the partition cage is provided with a conveying component, the inner wall of the filter box is provided with a filter component, and the bottom of the filter box is provided with a discharge component.

[0009] Optionally, the stirring component comprises a motor fixedly connected to the surface of the sedimentation tank, a rotating shaft fixedly connected to the output end of the motor, and multiple mixing blades fixedly connected to the surface of the rotating shaft.

[0010] Optionally, the conveying component comprises a water pump arranged in the inside of the partition cage and a conveying pipe fixedly connected to the output of the water pump.

[0011] The conveying pipe is connected with the filter box.

[0012] Optionally, the filter component comprises a frame, multiple filter screens fixedly connected to the inner wall of the frame, multiple filter screens fixedly connected to the inner surface of the frame, and activated carbon particles arranged between the two filter screens.

[0013] The outer surface of the frame is fixedly connected with multiple clamping blocks.

[0014] Optionally, the discharge component comprises a drain pipe fixedly connected to the bottom of the filter box and a switch valve arranged on the surface of the drain pipe.

[0015] Optionally, the surfaces of the sedimentation tank and the filter box are sprayed with protective paint.

[0016] Optionally, one side of the sedimentation tank is provided with a platform, one side of the platform is connected with the filter box, and the other side of the platform is connected with the sedimentation tank.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] The application has reasonable structure, the return flow is separated by the chamber one, the chamber two and the chamber three of the inner wall of the sedimentation tank, the return flow is conveniently precipitated, the flocculating agent or other medicaments are added into the inside of the sedimentation tank, the rotating shaft and the mixing blades are driven by the motor to rotate, the return flow is mixed with the medicaments, and the impurities in the return flow are conveniently precipitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be explained in further detail in combination with the drawings and specific embodiments.

[0020] Figure 1The utility model discloses a three -dimensional structure schematic diagram Figure 1 ;

[0021] Figure 2 The utility model discloses a three -dimensional structure schematic diagram Figure 2 ;

[0022] Figure 3 The utility model discloses a three -dimensional structure schematic diagram Figure 3 ;

[0023] Figure 4 It is partial section structure schematic drawing for the sedimentation tank in the utility model;

[0024] Figure 5 It is partial section structure schematic drawing for the frame in the utility model;

[0025] In the drawing: 1, sedimentation tank, 2, filter box, 3, platform, 4, filter screen, 5, motor, 6, rotating shaft, 7, mixing blade, 8, baffle one, 9, baffle two, 10, cage, 11, conveying pipe, 12, shunt plate one, 13, shunt plate two, 14, drain pipe, 15, on-off valve, 16, frame, 17, filter screen, 18, activated carbon granule, 19, clamping block. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are all involved in the protection scope of the utility model.

[0027] EMBODIMENT

[0028] Please refer to Figure 1 Figure 5 The utility model provides a kind of fracturing flowback fluid sedimentation separation equipment, it include: sedimentation tank 1 and filter box 2;

[0029] The inner wall of sedimentation tank 1 is respectively fixedly connected with baffle one 8 and baffle two 9, the inner bottom of sedimentation tank 1 is respectively fixedly connected with shunt plate one 12 and shunt plate two 13, baffle one 8, baffle two 9, shunt plate one 12 and shunt plate two 13 divide sedimentation tank 1 into chamber one, chamber two and chamber three;

[0030] The surface of sedimentation tank 1 is fixedly connected with multiple groups of stirring components, chamber three inner wall is clamped with cage 10, the inside of cage 10 is equipped with conveying component, the inner wall of filter box 2 is equipped with filter component, the bottom of filter box 2 is equipped with discharge component.

[0031] ​Further, the stirring component comprises a motor 5 fixedly connected to the surface of the sedimentation tank 1, a rotating shaft 6 fixedly connected to the output end of the motor 5, and a plurality of mixing blades 7 fixedly connected to the surface of the rotating shaft 6.

[0032] Specifically, the flocculating agent or other medicament is added into the sedimentation tank 1, and then the rotating shaft 6 and the mixing blades 7 are driven to rotate by the motor 5, so that the produced water and the medicament are mixed, and the impurities in the produced water are precipitated.

[0033] Further, the conveying component comprises a water pump arranged in the cage 10 and a conveying pipe 11 fixedly connected to the output end of the water pump.

[0034] The conveying pipe 11 is connected to the filter box 2, and the filtering component comprises a frame 16, a plurality of filter screens 4 fixedly connected to the inner wall of the frame 16, a plurality of filter screens 17 fixedly connected to the inner surface of the frame 16, and activated carbon particles 18 arranged between the two filter screens 17.

[0035] A plurality of clamping blocks 19 are fixedly connected to the outer surface of the frame 16, and the discharging component comprises a drain pipe 14 fixedly connected to the bottom of the filter box 2 and a switch valve 15 arranged on the surface of the drain pipe 14.

[0036] Specifically, the produced water precipitated in the sedimentation tank 1 is conveyed into the filter box 2 through the conveying pipe 11 by the water pump, and is preliminarily filtered through the filter screens 4, and then is secondarily filtered through the filter screens 17 and the activated carbon particles 18, and the filtered produced water is discharged through the drain pipe 14 by opening the switch valve 15.

[0037] Further, the sedimentation tank 1 is provided with a platform 3, one side of the platform 3 is connected to the filter box 2, the other side of the platform 3 is connected to the sedimentation tank 1, and the surfaces of the sedimentation tank 1 and the filter box 2 are sprayed with protective paint.

[0038] Specifically, the platform 3 facilitates the inspection of the sedimentation tank 1 and the filter box 2 by the staff.

[0039] The working process of the present application is as follows:

[0040] The produced water is separated by the chambers one, two and three in the inner wall of the sedimentation tank 1, so as to facilitate the precipitation of the produced water, and the flocculating agent or other medicament is added into the sedimentation tank 1, and the rotating shaft 6 and the mixing blades 7 are driven to rotate by the motor 5, so as to mix the produced water and the medicament, and facilitate the precipitation of the impurities in the produced water.

[0041] The return flow liquid after precipitation in the inside of the sedimentation tank 1 is transported to the inside of the filter box 2 through the conveying pipe 11 by a water pump, and is preliminarily filtered through the filter screen 4, then is secondarily filtered through the filter screen 17 and the activated carbon particles 18, and the filtered return flow liquid is discharged through the drain pipe 14 by opening the switch valve 15.

[0042] The above only is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fracturing flowback fluid settling separation apparatus, characterized in that, Include: The sedimentation tank (1) and filter box (2); The inner wall of the sedimentation tank (1) is respectively fixedly connected with the partition one (8) and the partition two (9), the inner bottom of the sedimentation tank (1) is respectively fixedly connected with the flow divider one (12) and the flow divider two (13), the partition one (8), the partition two (9), the flow divider one (12) and the flow divider two (13) divide the sedimentation tank (1) into chamber one, chamber two and chamber three; The surface of the sedimentation tank (1) is fixedly connected with a plurality of stirring components, the inner wall of the chamber three is clamped with a cage (10), the inside of the cage (10) is provided with a conveying component, the inner wall of the filter box (2) is provided with a filter component, the bottom of the filter box (2) is provided with a discharge component.

2. The fracturing flowback fluid sedimentation separation device according to claim 1, characterized in that: The stirring component includes a motor (5) fixedly connected to the surface of the sedimentation tank (1), a rotating shaft (6) fixedly connected to the output end of the motor (5) and a plurality of mixing blades (7) fixedly connected to the surface of the rotating shaft (6).

3. The fracturing flowback fluid sedimentation separation device according to claim 1, characterized in that: The conveying component includes a water pump arranged in the inside of the cage (10) and a conveying pipe (11) fixedly connected to the output of the water pump; The conveying pipe (11) is connected with the filter box (2).

4. The fracturing flowback fluid settling separation apparatus of claim 1, wherein: The filter component includes a frame (16), a plurality of filter screens (4) fixedly connected to the inner wall of the frame (16), a plurality of filter screens (17) fixedly connected to the inner surface of the frame (16) and activated carbon particles (18) arranged between the two filter screens (17). The outer surface of the frame (16) is fixedly connected with a plurality of clamping blocks (19).

5. The fracturing flowback fluid settling separation apparatus of claim 1, wherein: The discharge component includes a drain pipe (14) fixedly connected to the bottom of the filter box (2) and a switch valve (15) arranged on the surface of the drain pipe (14).

6. The fracturing flowback fluid settling separation apparatus of claim 1, wherein: The surface of the sedimentation tank (1) and the filter box (2) is sprayed with protective paint.

7. The fracturing flowback fluid settling separation apparatus of claim 1, wherein: One side of the sedimentation tank (1) is provided with a platform (3), one side of the platform (3) is connected with the filter box (2), and the other side of the platform (3) is connected with the sedimentation tank (1).

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