CN221906060U - Fracturing reverse drainage filtering device - Google Patents

Abstract

The utility model belongs to the field of filtering devices, and specifically relates to a fracturing reverse drainage filtering device, including a filtering box, the upper end of the filtering box is connected to a box cover by bolts, a filtering barrel is installed on the upper part of the inner wall of the filtering box by bearings, an impurity cleaning mechanism is arranged on the box cover, a drainage pipe is fixedly connected to the lower end of the filtering box, and a sewage pipe is fixedly connected to the upper end of the box cover. The utility model adds a filtering barrel, a sewage pipe, a reamer and other structures inside the filtering box, and in the process of filtering sewage, the centrifugal force generated by the rotation of the filtering barrel can be used to throw fixed waste to the outside of the sewage pipe for accumulation, and at the same time, the reamer is driven to rotate by a reduction motor, the reamer can lift the object, and transport the solid waste through the sewage pipe, so that the waste generated after filtering can be more convenient to clean.

Description

A fracturing reverse drainage filtering device

Technical Field

The utility model relates to the technical field of filtering devices, in particular to a fracturing reverse drainage filtering device.

Background Art

Fracturing return fluid is sewage generated during the pressure process. In order to protect the environment, the return fluid can be treated and reused. According to the patent authorization announcement number: CN211770695U, a filtering device for recycling and treating fracturing return fluid is proposed. The utility model discloses a filtering device for recycling and treating fracturing return fluid, including a main body and a base. A filtering mechanism is arranged on the left side of the inner wall of the main body, and a second box body is installed on the right outer wall of the filtering mechanism. The right outer wall of the second box body is connected with a conveying pipeline, and a transmission mechanism is arranged on the right outer wall of the conveying pipeline. A storage box is installed on the left side of the bottom end of the inner wall of the main body. The filtering device for recycling and treating fracturing backflow fluid can transport the fracturing backflow fluid into the first box body through the setting of the feed port, and at the same time, the inorganic coagulant and the organic flocculant can be placed in the first box body through the pipeline opened at the top. After the fracturing backflow fluid, the inorganic coagulant and the organic flocculant are fully reacted, they can be filtered by using the setting of the grid layer, and the mud contained in the fracturing backflow fluid can be discharged from the discharge pipe by pushing the push plate by the hydraulic cylinder, so that the fracturing backflow fluid can be effectively treated.

However, in the process of using the backflow liquid treatment device in the prior art, the solid impurities inside need to be pre-filtered by the filtering device. In the process of filtering the backflow liquid, the impurities stay inside the filtering device and are not easy to clean. In addition, small fixed impurities are likely to remain inside the filtered liquid, affecting the filtering quality. Therefore, it is necessary to improve the prior art.

Utility Model Content

The utility model aims to provide a fracturing backflow liquid filtering device, which solves the problem that the debris is inconvenient to clean and small fixed debris is easy to remain in the liquid.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fracturing reverse drainage filtering device, comprising a filter box, the upper end of the filter box is connected to a box cover by bolts, the upper part of the inner wall of the filter box is equipped with a filter barrel by a bearing, the box cover is provided with an impurity cleaning mechanism, the lower end of the filter box is fixedly connected to a drainage pipe, the upper end of the box cover is fixedly connected to a sewage pipe, the outer side of one end of the drainage pipe located inside the filter box is slidably connected to a sealing cover, the inner top of the sealing cover is fixedly connected to a rubber column, the upper end of the sealing cover is fixedly connected to a floating plate, the lower end of the sealing cover is fixedly connected to a connecting nail, and a spring is provided on the outer side of the connecting nail.

Preferably, the rubber column is slidably connected to the drainage pipe, and the connecting nail is slidably connected to the drainage pipe, and the rubber column can block the hole of the drainage pipe.

Preferably, one end of the spring is fixedly connected to the drain pipe, and the other end of the spring is fixedly connected to the connecting nail, and the spring can support the connecting nail through elastic force.

Preferably, a fixing frame is fixedly connected to the inner top of the box cover, and a guide frame is fixedly connected to the upper end of the fixing frame and located directly below the sewage pipe, and the guide frame can guide the sewage.

Preferably, the impurity cleaning mechanism includes an internal gear ring, the upper end of the filter barrel is fixedly connected with the internal gear ring, the interior of the box cover is equipped with a gear through a bearing, a drive motor is fixedly installed on the upper end of the box cover and above the gear, a drain pipe is fixedly connected to the right side of the interior of the box cover, a reamer is installed inside the drain pipe through a bearing, a reduction motor is fixedly installed on the upper end of the drain pipe, the drain pipe is in contact with the inner wall of the filter barrel, and the reamer can lift solid matter during rotation.

Preferably, the output shaft of the driving motor is fixedly connected to the gear, and the inner gear ring is meshed with the gear, so that the gear can drive the filter barrel to rotate through the inner gear ring.

Preferably, the lower end of the output shaft of the reduction motor is fixedly connected to the reamer, the reamer is in contact with the inner wall of the sewage pipe, and the reduction motor can drive the reamer to rotate.

Preferably, a sealing ring is rotatably connected to the upper outer side of the reamer, and the sealing ring is fixedly connected to the sewage pipe. The sealing ring can increase the sealing between the reamer and the sewage pipe.

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

1. The utility model adds a filter barrel, a sewage pipe, a reamer and other structures inside the filter box. In the process of filtering sewage, the centrifugal force generated by the rotation of the filter barrel can be used to throw fixed waste to the outside of the sewage pipe for accumulation, and the reamer is driven to rotate by the reduction motor at the same time. The reamer can lift the object and transport the solid waste through the sewage pipe, so that the waste generated after filtration can be more convenient to clean.

2. The utility model adds structures such as a floating plate, a spring and a sealing cover to the drainage pipe. During use, the filtered liquid accumulates on the inner bottom of the filter box. When the buoyancy generated by the liquid on the floating plate is greater than the elastic force of the spring, the sealing cover and the rubber column are separated from the drainage pipe, and the precipitated liquid can be discharged into the interior of the drainage pipe, thereby effectively improving the filtration efficiency of sewage.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a perspective view of the overall structure of the utility model;

FIG2 is a three-dimensional cross-sectional view of FIG1 of the present utility model;

FIG3 is an enlarged perspective view of the sewage pipe of FIG1 of the present invention;

FIG4 is a front cross-sectional view of FIG3 of the present utility model;

FIG5 is a partial enlarged cross-sectional view of the filter box of FIG1 of the present invention;

FIG. 6 is an enlarged structural view of section A of FIG. 5 of the present invention.

In the figure: 1. filter box; 2. box cover; 3. filter barrel; 4. impurity cleaning mechanism; 5. drain pipe; 6. sewage pipe; 7. sealing cover; 8. rubber column; 9. floating plate; 10. connecting nail; 11. spring; 12. fixing frame; 13. guide frame; 41. internal gear ring; 42. gear; 43. drive motor; 44. drain pipe; 45. reamer; 46. reduction motor; 47. sealing ring.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1, 2, 3, 4, 5 and 6, a fracturing reverse drainage filtering device includes a filter box 1, the upper end of the filter box 1 is connected to a box cover 2 by bolts, a filter barrel 3 is installed on the upper part of the inner wall of the filter box 1 through a bearing, an impurity cleaning mechanism 4 is provided on the box cover 2, a drainage pipe 5 is fixedly connected to the lower end of the filter box 1, a sewage pipe 6 is fixedly connected to the upper end of the box cover 2, a sealing cover 7 is slidably connected to the outer side of one end of the drainage pipe 5 located inside the filter box 1, a rubber column 8 is fixedly connected to the inner top of the sealing cover 7, a floating plate 9 is fixedly connected to the upper end of the sealing cover 7, a connecting nail 10 is fixedly connected to the lower end of the sealing cover 7, and a spring 11 is provided on the outer side of the connecting nail 10.

Please refer to Figures 1, 5 and 6. The rubber column 8 is slidably connected to the drain pipe 5, and the connecting nail 10 is slidably connected to the drain pipe 5. The rubber column 8 can seal the hole of the drain pipe 5. One end of the spring 11 is fixedly connected to the drain pipe 5, and the other end of the spring 11 is fixedly connected to the connecting nail 10. The spring 11 can support the connecting nail 10 through elastic force. A fixing frame 12 is fixedly connected to the inner top of the box cover 2, and a guide frame 13 is fixedly connected to the upper end of the fixing frame 12 and directly below the sewage pipe 6. The guide frame 13 can divert sewage.

Please refer to Figures 1, 2, 3 and 4. The impurity cleaning mechanism 4 includes an inner gear ring 41, the upper end of the filter barrel 3 is fixedly connected with the inner gear ring 41, the interior of the box cover 2 is equipped with a gear 42 through a bearing, the upper end of the box cover 2 and above the gear 42 is fixedly equipped with a drive motor 43, the right side of the interior of the box cover 2 is fixedly connected with a drain pipe 44, the interior of the drain pipe 44 is equipped with a reamer 45 through a bearing, the upper end of the drain pipe 44 is fixedly equipped with a reduction motor 46, the drain pipe 44 is in contact with the inner wall of the filter barrel 3, and the reamer 45 can rotate during rotation. Solid objects are lifted, the output shaft of the driving motor 43 is fixedly connected to the gear 42, the inner gear ring 41 is meshed with the gear 42, the gear 42 can drive the filter barrel 3 to rotate through the inner gear ring 41, the lower end of the output shaft of the reduction motor 46 is fixedly connected to the reamer 45, the reamer 45 is in contact with the inner wall of the sewage pipe 44, the reduction motor 46 can drive the reamer 45 to rotate, the outer upper part of the reamer 45 is rotatably connected with a sealing ring 47, the sealing ring 47 is fixedly connected to the sewage pipe 44, and the sealing ring 47 can increase the sealing between the reamer 45 and the sewage pipe 44.

The specific implementation process of the utility model is as follows: when in use, the sewage pipe 6 discharges the sewage into the interior of the filter barrel 3. During the discharge process, the sewage can be diverted by the guide frame 13, and then the sewage falls into the interior of the filter barrel 3. After being filtered by the filter barrel 3, the liquid and fine particles enter the inner bottom of the filter box 1 through the filter screen. When the water level rises to a certain height, the buoyancy of the floating plate 9 is greater than the elastic force of the spring 11, and the floating plate 9 drives the sealing cover 7 and the rubber column 8 to move. When the sealing cover 7 and the rubber column 8 are separated from the sewage pipe 6, the precipitated liquid can be discharged through the sewage pipe 6, which can effectively improve the filtration quality of the sewage.

During the process of filtering sewage, the drive motor 43 is started, and the drive motor 43 drives the gear 42 to rotate. The gear 42 drives the filter barrel 3 to rotate through the inner gear ring 41. During the rotation of the filter barrel 3, the solid waste on the outside of the filter screen can be thrown away by the centrifugal force generated, and accumulated at the bottom of the sewage pipe 44 through the obstruction of the sewage pipe 44. At the same time, the reduction motor 46 is started, and the reduction motor 46 drives the reamer 45 to rotate. The reamer 45 can lift the debris through the contact between the reamer and the sewage pipe 44, so that the waste can be discharged conveniently.

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

Claims (8)

1. A fracturing reverse drainage filtering device, comprising a filter box (1), characterized in that: the upper end of the filter box (1) is connected to a box cover (2) by bolts, a filter barrel (3) is installed on the upper part of the inner wall of the filter box (1) through a bearing, an impurity cleaning mechanism (4) is provided on the box cover (2), a drainage pipe (5) is fixedly connected to the lower end of the filter box (1), a sewage pipe (6) is fixedly connected to the upper end of the box cover (2), a sealing cover (7) is slidably connected to the outer side of one end of the drainage pipe (5) located inside the filter box (1), a rubber column (8) is fixedly connected to the inner top of the sealing cover (7), a floating plate (9) is fixedly connected to the upper end of the sealing cover (7), a connecting nail (10) is fixedly connected to the lower end of the sealing cover (7), and a spring (11) is provided on the outer side of the connecting nail (10). 2. A fracturing reverse drainage filtering device according to claim 1, characterized in that: the rubber column (8) is slidably connected to the drainage pipe (5), and the connecting nail (10) is slidably connected to the drainage pipe (5). 3. A fracturing reverse drainage filtering device according to claim 1, characterized in that one end of the spring (11) is fixedly connected to the drainage pipe (5), and the other end of the spring (11) is fixedly connected to the connecting nail (10). 4. A fracturing reverse flow filtering device according to claim 1, characterized in that: a fixing frame (12) is fixedly connected to the inner top of the box cover (2), and a guide frame (13) is fixedly connected to the upper end of the fixing frame (12) and located directly below the sewage pipe (6). 5. A fracturing reverse drainage filtering device according to claim 1, characterized in that: the impurity cleaning mechanism (4) includes an internal gear ring (41), the upper end of the filter barrel (3) is fixedly connected to the internal gear ring (41), the interior of the box cover (2) is equipped with a gear (42) through a bearing, a drive motor (43) is fixedly installed at the upper end of the box cover (2) and above the gear (42), a sewage pipe (44) is fixedly connected to the right side of the interior of the box cover (2), a reamer (45) is installed inside the sewage pipe (44) through a bearing, a reduction motor (46) is fixedly installed at the upper end of the sewage pipe (44), and the sewage pipe (44) is in contact with the inner wall of the filter barrel (3). 6. A fracturing reverse drainage filtering device according to claim 5, characterized in that: the output shaft of the driving motor (43) is fixedly connected to the gear (42), and the inner gear ring (41) is meshed with the gear (42). 7. A fracturing reverse drainage filtering device according to claim 5, characterized in that the lower end of the output shaft of the reduction motor (46) is fixedly connected to the reamer (45), and the reamer (45) is in contact with the inner wall of the sewage pipe (44). 8. A fracturing reverse drainage filtering device according to claim 5, characterized in that a sealing ring (47) is rotatably connected to the upper outer side of the reamer (45), and the sealing ring (47) is fixedly connected to the sewage pipe (44).