Petroleum fracturing sand filtering device

Abstract

The utility model provides a petroleum fracturing sand filtering device, which belongs to the technical field of filtering devices and comprises a filtering device body, a filtering plate is arranged in the filtering device body, a filtering groove is arranged on the filtering plate, the axis of the filtering plate is rotatably connected with a rotating shaft, and a movable plate attached to the surface of the filtering plate is integrally formed on the rotating shaft. The bottom of the movable plate is fixedly connected with a pushing block attached to the filter tank, an exhaust groove inclining in the rotating direction of the movable plate is formed in the movable plate in a penetrating mode, an exhaust channel communicated with the exhaust groove is formed in the movable plate and the rotating shaft, an air blower is arranged at the top of the rotating shaft, and an air outlet of the air blower is communicated with an air inlet of the exhaust channel. A plurality of discharge ports of which the inlet ends are flush with the tops of the filter plates are formed in the filter device body in the circumferential length direction in a penetrating manner. By arranging an exhaust channel, a rotating shaft and a pushing block, air flow exhausted by an exhaust groove blows impurities extruded by a pushing plate to the direction of a discharging opening, the impurities are prevented from rotating along with a movable plate for a long time, and therefore the cleaning efficiency of the impurities in the filter tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a petroleum fracturing sand filtering device. Background Art

[0002] The main function of the petroleum fracturing sand filter device is to remove the fracturing sand of large fracturing. It can safely remove the fracturing sand of large fracturing, filter and measure the amount of sand produced by the formation, and effectively reduce the damage to downstream ground equipment. In addition, the equipment can also realize the dry discharge treatment of solid waste and the recycling and reuse of water resources. The holes on the filter cartridge of the existing petroleum fracturing sand filter device are prone to clogging during filtering work, resulting in poor subsequent filtration effect.

[0003] In order to address the above problems, a Chinese patent with an existing announcement number of CN219424934U proposes a petroleum fracturing sand filtering device, which drives a movable plate to rotate inside a fixed plate through a connecting rod, and squeezes out impurities blocked inside the filter tank by sliding an extrusion block inside the movable groove. The impurities are discharged through the slots under the guidance of the movable plate, thereby avoiding blockage of the filter tank and improving the filtering effect.

[0004] However, although the above-mentioned petroleum fracturing sand filtering device can squeeze out the impurities blocked in the filter tank by the extrusion block through the rotation of the movable plate, and use the movable plate to push it to the slot for discharge, thereby realizing the cleaning of the filter tank, but when the petroleum fracturing sand filtering device rotates the movable plate to drive the extrusion block to clean the filter tank, the impurities squeezed out of the filter tank will follow the rotation of the movable plate, and only when there are more impurities will they be squeezed into the slot during the rotation of the movable plate, resulting in low efficiency in cleaning impurities in the filter tank. Therefore, the utility model provides a petroleum fracturing sand filtering device to meet the needs. Utility Model Content

[0005] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a petroleum fracturing sand filtering device.

[0006] The technical problem to be solved by the utility model is to provide a petroleum fracturing sand filtering device to solve the problem that when the existing petroleum fracturing sand filtering device rotates the movable plate to drive the extrusion block to clean the filter tank, the impurities squeezed out of the filter tank will rotate with the movable plate, and only when there are more impurities will they be squeezed into the slot during the rotation of the movable plate, resulting in low efficiency in cleaning the impurities in the filter tank.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A petroleum fracturing sand filtering device, comprising:

[0009] The filter device body has a filter plate arranged inside, a filter slot is provided on the filter plate, a rotating shaft is rotatably connected to the filter plate axis, the filter slot is coaxially arranged with the rotating shaft and has a circular structure, a movable plate which fits the surface of the filter plate is integrally formed on the rotating shaft, a pushing block which fits the filter slot is fixedly connected to the bottom of the movable plate, an exhaust slot inclined in the rotation direction of the movable plate is penetrated by the movable plate, an exhaust channel connected with the exhaust slot is provided inside the movable plate and the rotating shaft, a blower is provided on the top of the rotating shaft, the air outlet of the blower is connected with the air inlet of the exhaust channel, and a plurality of discharge ports whose inlet ends are flush with the top of the filter plate are penetrated along the circumferential direction of the filter device body.

[0010] Preferably, brushes are evenly distributed on the end surface of the pushing block that contacts the filter tank.

[0011] Preferably, a guide block is integrally formed on the end surface of the pushing block facing the rotation direction of the movable plate, and the guide block is a wedge-shaped structure with the tip facing the rotation direction of the movable plate.

[0012] Preferably, it further comprises a support block, which is sleeved on the rotating shaft, the rotating shaft is rotatably connected to the support block, and a support rod is fixedly connected between the support block and the inner wall of the filter device body.

[0013] Preferably, a protection box is fixedly connected to the top of the rotating shaft, the blower is located in the protection box, and a motor for driving the rotating shaft and thus the protection box to rotate is provided on the top of the filtering device body.

[0014] Preferably, a connecting rod is fixedly connected between the rotating shaft and the movable plate, and the rotating shaft is rotatably connected to the filter plate via a bearing.

[0015] Preferably, the discharge port is arranged on the filter device body in an inclined manner downward from the inlet end toward the other end.

[0016] In the above scheme, an exhaust channel, an exhaust slot, a rotating shaft, and a pushing block are provided, and the movable plate and the pushing block are driven to rotate by the rotating shaft. Then, the wind flow discharged through the exhaust slot blows the impurities squeezed out of the pushing plate toward the discharge port, so as to prevent the impurities from rotating with the movable plate for a long time, thereby accelerating the cleaning efficiency of the impurities in the filter tank.

[0017] In the above scheme, by providing a brush and a guide block, the provision of the brush can improve the cleaning effect of the filter tank, and the guide block can reduce the friction between the push block and impurities in the filter tank, making it easier for the push block to slide in the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the filter body of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure from another perspective;

[0022] Figure 4 It is a dotted structural schematic diagram of the exhaust channel and exhaust slot of the utility model;

[0023] Figure 5 It is a partial structural schematic diagram of the push block, brush and guide block of the utility model;

[0024] Figure 6 For this utility model Figure 5 Top view of the .

[0025] [Reference Signs]

[0026] 1. Filter device body; 2. Motor; 3. Support rod; 4. Protective box; 5. Support block; 6. Discharge port; 7. Filter plate; 8. Rotating shaft; 9. Blower; 10. Movable plate; 11. Exhaust slot; 12. Push block; 13. Connecting rod; 14. Bearing; 15. Filter slot; 16. Exhaust channel; 17. Brush; 18. Guide block. DETAILED DESCRIPTION

[0027] like Figures 1 to 6 As shown, an embodiment of the utility model provides a petroleum fracturing sand filtering device, including a filtering device body 1, a filter plate 7 is provided inside the filter plate 7, a filter slot 15 is provided on the filter plate 7, the filter plate 7 is axially rotatably connected to a rotating shaft 8, the filter slot 15 is coaxially arranged with the rotating shaft 8 and is a circular structure, a movable plate 10 that is in contact with the surface of the filter plate 7 is integrally formed on the rotating shaft 8, a pushing block 12 that is in contact with the filter slot 15 is fixedly connected to the bottom of the movable plate 10, an exhaust slot 11 inclined in the rotation direction of the movable plate 10 is penetrated through the movable plate 10, an exhaust channel 16 connected with the exhaust slot 11 is provided inside the movable plate 10 and the rotating shaft 8, a blower 9 is provided on the top of the rotating shaft 8, an air outlet of the blower 9 is connected with an air inlet of the exhaust channel 16, and a plurality of discharge ports 6 whose inlet ends are flush with the top of the filter plate 7 are penetrated along the circumferential direction of the upper circumference of the filtering device body 1.

[0028] Specifically, the movable plate 10 is driven to rotate by the rotation of the rotating shaft 8, so that the movable plate 10 drives the pushing block 12 to squeeze out the impurities in the filter tank 15 to the surface of the filter plate 7, and the blower 9 is started at the same time, so that the blower 9 discharges the wind flow to the exhaust channel 16 and discharges it to the surface of the filter plate 7 along the exhaust slot 11, so that the wind flow discharged from the exhaust slot 11 blows the impurities squeezed out by the pushing plate toward the discharge port 6, thereby accelerating the cleaning efficiency of the impurities in the filter tank 15 and preventing the impurities from rotating for a long time with the movable plate 10. This solves the problem that in the existing oil fracturing sand filtering device, when the movable plate is rotated to drive the squeezing block to clean the filter tank, the impurities squeezed out of the filter tank will follow the rotation of the movable plate, and only when there are more impurities will they be squeezed into the slot during the rotation of the movable plate, resulting in low cleaning efficiency of the impurities in the filter tank.

[0029] It should be noted that the filter device body 1 and the filter plate 7 are both cylindrical structures, so that the movable plate 10 can fit the inner wall of the filter device body 1, thereby improving the cleaning effect of the filter plate 7 and the filter tank 15. Furthermore, the rotation method of the rotating shaft 8 is a prior art and will not be described here. In addition, the blower 9 can be fixed on the rotating shaft 8 or the exhaust duct of the blower 9 is connected to the exhaust channel 16 and is rotatably connected to the rotating shaft 8 at the same time, so that ventilation to the exhaust duct can be achieved.

[0030] like Figure 5 and Figure 6 As shown, in the present embodiment, the end surfaces of the push block 12 that are in contact with the filter tank 15 are evenly provided with brushes 17, and the end surface of the push block 12 that is facing the rotation direction of the movable plate 10 is integrally formed with a guide block 18, and the guide block 18 is a wedge-shaped structure with the tip facing the rotation direction of the movable plate 10. Specifically, the provision of the brush 17 can improve the cleaning effect of the filter tank 15, and the guide block 18 can reduce the friction between the push block 12 and impurities in the filter tank 15, thereby facilitating the sliding of the push block 12 in the filter tank 15.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, it also includes a support block 5, which is sleeved on the rotating shaft 8. The rotating shaft 8 is rotatably connected to the support block 5. A support rod 3 is fixedly connected between the support block 5 and the inner wall of the filter device body 1. Specifically, the arrangement of the support block 5 and the support rod 3 is conducive to improving the stability of the rotation of the rotating shaft 8, and plays a supporting and limiting role.

[0032] like Figure 2 and Figure 3As shown, in this embodiment, a protective box 4 is fixedly connected to the top of the rotating shaft 8, the blower 9 is located in the protective box 4, and a motor 2 for driving the rotating shaft 8 and thus the protective box 4 to rotate is provided on the top of the filter device body 1. A connecting rod 13 is fixedly connected between the rotating shaft 8 and the movable plate 10, and the rotating shaft 8 is rotatably connected to the filter plate 7 through a bearing 14. Specifically, the connecting rod 13 facilitates the connection between the rotating shaft 8 and the movable plate 10, and can improve the overall stability and firmness.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, the discharge port 6 is arranged on the filter device body 1 to be tilted downward from the inlet end toward the other end. Specifically, the tilted arrangement of the discharge port 6 can accelerate the discharge of impurities.

[0034] Working principle:

[0035] The motor 2 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the movable plate 10 to rotate, so that the movable plate 10 drives the pushing block 12 to squeeze the impurities in the filter tank 15 to the surface of the filter plate 7, and at the same time starts the blower 9, so that the blower 9 discharges the wind flow to the exhaust channel 16 and discharges it to the surface of the filter plate 7 along the exhaust slot 11, so that the wind flow discharged from the exhaust slot 11 blows the impurities squeezed out of the pushing plate to the direction of the discharge port 6, thereby accelerating the cleaning efficiency of the impurities in the filter tank 15 and avoiding the impurities from rotating for a long time with the movable plate 10. This solves the problem that when the existing oil fracturing sand filtering device rotates the movable plate to drive the squeezing block to clean the filter tank, the impurities squeezed out of the filter tank will follow the rotation of the movable plate, and only when there are more impurities will they be squeezed into the slot during the rotation of the movable plate, resulting in low cleaning efficiency of the impurities in the filter tank.

Claims

1. A petroleum fracturing sand filtering device, characterized in that: include: A filtering device body (1) is provided with a filter plate (7) inside, a filter slot (15) is provided on the filter plate (7), the filter plate (7) is axially rotatably connected to a rotating shaft (8), the filter slot (15) and the rotating shaft (8) are coaxially arranged and are circular in structure, a movable plate (10) is integrally formed on the rotating shaft (8) and is in contact with the surface of the filter plate (7), a pushing block (12) in contact with the filter slot (15) is fixedly connected to the bottom of the movable plate (10), and a push block (12) in contact with the filter slot (15) is provided on the movable plate (10). An exhaust slot (11) is provided through the movable plate (10) and is inclined in the direction of rotation of the movable plate (10). An exhaust channel (16) connected to the exhaust slot (11) is provided inside the movable plate (10) and the rotating shaft (8). A blower (9) is provided on the top of the rotating shaft (8). The air outlet of the blower (9) is connected to the air inlet of the exhaust channel (16). A plurality of discharge ports (6) with inlet ends flush with the top of the filter plate (7) are provided through the filter body (1) along the circumferential direction of the filter body (1).

2. The petroleum fracturing sand filtering device according to claim 1, characterized in that: Brushes (17) are evenly distributed on the end surfaces of the push block (12) that are in contact with the filter tank (15).

3. The petroleum fracturing sand filtering device according to claim 2, characterized in that: A guide block (18) is integrally formed on the end surface of the push block (12) facing the rotation direction of the movable plate (10); the guide block (18) is a wedge-shaped structure with the tip facing the rotation direction of the movable plate (10).

4. The petroleum fracturing sand filtering device according to claim 1, characterized in that: It also comprises a support block (5) which is sleeved on the rotating shaft (8), the rotating shaft (8) being rotatably connected to the support block (5), and a support rod (3) being fixedly connected between the support block (5) and the inner wall of the filter device body (1).

5. The petroleum fracturing sand filtering device according to claim 4, characterized in that: The top of the rotating shaft (8) is fixedly connected to a protective box (4), the blower (9) is located in the protective box (4), and the top of the filtering device body (1) is provided with a motor (2) for driving the rotating shaft (8) and thus the protective box (4) to rotate.

6. The petroleum fracturing sand filtering device according to claim 4, characterized in that: A connecting rod (13) is fixedly connected between the rotating shaft (8) and the movable plate (10), and the rotating shaft (8) is rotatably connected to the filter plate (7) via a bearing (14).

7. The petroleum fracturing sand filtering device according to claim 1, characterized in that: The discharge port (6) is arranged on the filter device body (1) in an inclined manner downward from the inlet end toward the other end.

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