Water-based drilling waste solid-liquid separation device

Abstract

The utility model relates to the field of water-based well drilling waste treatment, in particular to a water-based well drilling waste solid-liquid separation device which comprises a collection box, a separation barrel is obliquely and rotatably connected to the top of the collection box, a discharging plate is fixedly connected to the front end of the collection box, and the front end and the rear end of the top of the collection box are fixedly connected with a first supporting frame and a second supporting frame respectively. A circular ring is rotationally connected between each first supporting frame and the corresponding second supporting frame, the circular ring at the front end is rotationally connected with the front end of the separating cylinder, the circular ring at the rear end is rotationally connected with the feeding port, a hole cleaning mechanism is rotationally connected between the first supporting frame and the second supporting frame on the left side, and a driving mechanism is fixedly connected to the rear end of the collecting box. A collecting cavity is formed in the upper surface of the collecting box, placing blocks are fixedly connected to the front end and the rear end in the collecting cavity respectively, a subdivision mechanism is arranged at the tops of the placing blocks, the device can effectively prevent separation holes of the roller from being blocked by waste, and meanwhile, the solid-liquid separation effect of the roller on the waste is further improved.

Description

Technical Field

[0001] This utility model relates to the field of water-based drilling waste treatment, and in particular to a solid-liquid separation device for water-based drilling waste. Background Technology

[0002] In oil and gas drilling operations, water-based drilling fluids are widely used due to their low cost and good environmental performance. However, the drilling waste (including rock cuttings, clay, chemical additives, etc.) generated after their use needs to be treated by solid-liquid separation to meet environmental emission requirements and resource recycling needs. Existing solid-liquid separation devices for water-based drilling waste are mainly divided into vertical and drum types. Although drum-type solid-liquid separation devices can have high separation efficiency, if the diameter of the separation holes on the drum surface is set too small, it will be easy to get clogged. If the diameter of the separation holes is set too large, it will reduce the solid-liquid separation effect of the waste. Therefore, a water-based drilling waste solid-liquid separation device is needed to solve the problems of easy clogging of the separation holes on the drum surface and poor solid-liquid separation effect of the drum. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this device provides a water-based drilling waste solid-liquid separation device. This device can effectively prevent the separation holes of the drum from being blocked by waste, and at the same time further improve the effect of the drum on solid-liquid separation of waste.

[0004] The purpose of this utility model is to provide a water-based drilling waste solid-liquid separation device, including a collection box, a separation cylinder that is tilted and rotatably connected to the top of the collection box, a plurality of separation holes on the surface of the separation cylinder, a discharge port at the front end of the separation cylinder, a feed port at the rear end of the separation cylinder, a discharge plate fixedly connected to the front end of the collection box, two first support frames and two second support frames fixedly connected to the front and rear ends of the top of the collection box respectively, and a ring rotatably connected between the two first support frames and the two second support frames respectively. The ring at the front end is rotatably connected to the outer surface of the front end of the separation cylinder, and the ring at the rear end is rotatably connected to the outer surface of the feed port. A cleaning mechanism for cleaning blockages in the separation holes is tilted and rotatably connected between the first support frame and the second support frame on the left side. A drive mechanism for controlling the axial rotation of the separation cylinder and the cleaning mechanism is fixedly connected to one side of the rear end of the collection box. A collection cavity is opened on the upper surface of the collection box, and a drain trough is opened at the bottom of the collection cavity. Placement blocks are fixedly connected to the front and rear ends of the collection cavity respectively, and a subdivision mechanism is provided on the top of the placement blocks.

[0005] Furthermore, the hole cleaning mechanism includes a roller with multiple protrusions on its surface, the protrusions matching the size of the separation hole. The front end of the roller is rotatably connected to the rear end surface of the first support frame on the left side of the displacement, and the rear end of the roller is connected to the drive mechanism.

[0006] Furthermore, the drive mechanism includes a motor mounting bracket, which is fixedly connected to the top side of the rear end of the collection box. A first motor is fixedly connected to the top of the motor mounting bracket. A drive gear is coaxially fixedly connected to the output end of the first motor. An external gear ring meshes with one side of the drive gear. The external gear ring is coaxially fixedly connected to the radial surface of the rear end of the roller. A driven gear meshes with one side of the external gear ring. The driven gear is coaxially fixedly connected to the rear end of the roller. The rear end of the driven gear is rotatably connected to the surface of the second support frame located on the left side.

[0007] Furthermore, the subdivision mechanism includes a filter frame, the bottom two ends of which contact the upper surfaces of two placement blocks. A horizontal plate is hinged to one side of the filter frame, and an opening is provided on one side of the collection chamber. The horizontal plate is slidably connected to the opening. A lifting rod is fixedly connected to the top of the filter frame. A second motor is fixedly connected to the rear end of the collection box. The output end of the second motor extends into the collection chamber and is coaxially fixedly connected to a rotating shaft. Multiple eccentric blocks are coaxially fixedly connected to the radial surface of the rotating shaft, and the eccentric blocks contact the lower surface of the lifting rod.

[0008] Furthermore, the bottom of the collection chamber is designed in a funnel shape, and the drainage trough is set to slope downwards.

[0009] Furthermore, the surfaces of the multiple protrusions and multiple separation holes are respectively provided with rounded corners.

[0010] Furthermore, a handle is fixedly connected to one end of the horizontal plate outside the collection chamber.

[0011] The working principle and usage principle of this utility model are as follows: When performing solid-liquid separation of water-based drilling waste, the waste is first fed into the separation cylinder through the feed inlet. The separation holes on the surface of the separation cylinder are used to perform the initial solid-liquid separation. This separation can separate the larger solids, while the liquid containing smaller wastes falls into the collection tank. The subdivision mechanism in the collection tank further separates the smaller wastes from the liquid, increasing the efficiency of solid-liquid separation. The rotation and tilting of the separation cylinder are controlled by the drive mechanism, which can gradually roll the solid waste to the discharge port of the drum for discharge. At the same time, the hole cleaning mechanism rotates synchronously with the rotation of the separation cylinder. When the hole cleaning mechanism rotates, it can continuously clean the waste blocking the separation holes, avoiding blockage of the separation holes and affecting the efficiency of solid-liquid separation.

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

[0013] 1. Compared with the prior art, the present invention can clean the blockage in the separation hole on the surface of the separation cylinder through the hole cleaning mechanism, which effectively avoids the blockage of the separation hole affecting the efficiency of solid-liquid separation of waste. When the drive mechanism controls the separation cylinder to rotate to separate solid and liquid, it can also drive the hole cleaning mechanism to rotate, which improves the linkage of the device.

[0014] 2. Compared with the prior art, the present invention has a subdivided mechanism at the bottom of the cleaning tank that can collect the liquid separated by the separation cylinder for further filtration, thereby achieving more refined solid-liquid separation and improving the solid-liquid separation effect of water-based drilling waste. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front end of the overall structure of a water-based drilling waste solid-liquid separation device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the rear end of the overall structure of a water-based drilling waste solid-liquid separation device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the subdivided mechanism structure of a water-based drilling waste solid-liquid separation device according to the present invention;

[0018] Figure 4 This is a cross-sectional view of the collection box structure of a water-based drilling waste solid-liquid separation device according to this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Collection box; 11. Collection chamber; 12. Placement block; 13. Opening; 2. Separation cylinder; 21. Ring; 3. Cleaning mechanism; 31. Roller; 32. Protrusion; 33. First support frame; 34. Second support frame; 4. Drive mechanism; 41. Motor mounting frame; 42. First motor; 43. Driving gear; 44. External gear ring; 45. Driven gear; 5. Subdivision mechanism; 51. Filter frame; 52. Horizontal plate; 53. Handle; 54. Picking rod; 55. Second motor; 56. Rotating shaft; 57. Eccentric block; 6. Drainage trough; 7. Discharge plate; 8. Discharge port; 9. Inlet. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of the embodiments of this application easier to understand, the embodiments of this application are further described below in conjunction with the figures and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of this application and are not intended to limit the embodiments of this application.

[0021] according to Figures 1 to 4As shown, a water-based drilling waste solid-liquid separation device includes a collection box 1, a separation cylinder 2 rotatably connected to the top of the collection box 1, multiple separation holes on the surface of the separation cylinder 2, a discharge port 8 at the front end of the separation cylinder 2, a feed port 9 at the rear end of the separation cylinder 2, a discharge plate 7 fixedly connected to the front end of the collection box 1, and two first support frames 33 and second support frames 34 fixedly connected to the front and rear ends of the top of the collection box 1, respectively. A ring 21 is rotatably connected between the two first support frames 33 and the two second support frames 34. The ring 21 at the front end is connected to the separation cylinder 2. The front outer surface is rotatably connected, and the rear ring 21 is rotatably connected to the outer surface of the feed port 9. The first support frame 33 and the second support frame 34 on the left side are rotatably connected to a cleaning mechanism 3 for cleaning the blockage of the separation hole. The rear side of the collection box 1 is fixedly connected to a drive mechanism 4 that controls the axial rotation of the separation cylinder 2 and the cleaning mechanism 3. The upper surface of the collection box 1 is provided with a collection cavity 11. The bottom of the collection cavity 11 is provided with a drain trough 6. The front and rear ends of the collection cavity 11 are fixedly connected to a placement block 12 respectively. The top of the placement block 12 is provided with a subdivision mechanism 5.

[0022] In practical implementation, the separating cylinder 2 is tilted and rotatably mounted on top of the collecting box 1, with the collecting box 1 located below the separating cylinder 2. A ring 21 is rotatably connected to the inlet 9 and outlet 8 of the separating cylinder 2, respectively. The inner diameters of the two rings 21 are respectively matched with the diameters of the separating cylinder 2 and the outlet 8. Connecting shafts are fixedly connected to both sides of the rings 21, and the rings 21 are fixedly connected to the front and rear ends of the first support frame 33 and the second support frame 34 via the connecting shafts on both sides. Using the rings 21 and the first and second support frames 33 and 34, the separating cylinder 2 can be mounted on top of the collecting box 1. Simultaneously, the height of the first support frame 33 is higher than the second support frame 34, thus making the height of the inlet 9 of the separating cylinder 2 higher than the height of the outlet 8. Waste requiring solid-liquid separation is fed into the separating cylinder 2 through the inlet 9, and the separation is achieved using the separation grooves on the surface of the separating cylinder 2. The separation hole can separate solids and liquids. Solid waste is gradually discharged through the discharge port 8 driven by the tilting and rotating separation cylinder 2, while liquid waste falls into the collection box 1 below the separation cylinder 2 through the separation hole. The fine separation mechanism 5 in the collection box 1 further filters the impurities and liquid in the liquid waste, which facilitates further solid-liquid separation of the waste. At this time, the impurities fall above the fine separation mechanism 5, and the filtered liquid waste is discharged through the drain trough 6 at the bottom of the collection chamber 11. The cleaning mechanism 3 contacts the separation cylinder 2, and the drive mechanism 4 can synchronously control the separation cylinder 2 and the cleaning mechanism 3 to rotate. When the separation cylinder 2 and the cleaning mechanism 3 rotate synchronously, the cleaning mechanism 3 can push the solid waste blocked in the separation hole back to the inside of the separation cylinder 2. This can avoid the separation hole from being blocked and solve the problem of low solid-liquid separation efficiency of the separation cylinder 2 when the separation hole is blocked.

[0023] Furthermore, the hole cleaning mechanism 3 includes a roller 31, the surface of which is provided with a plurality of protrusions 32, the protrusions 32 being matched with the size of the separation hole, the front end of the roller being rotatably connected to the rear end surface of the first support frame 33 on the left side of the displacement, and the rear end of the roller being connected to the drive mechanism 4.

[0024] In specific implementation, the spacing between the multiple protrusions 32 is consistent with the spacing between the separation cylinder 2, thereby ensuring that when the roller 31 and the separation cylinder 2 rotate, the protrusions 32 can be inserted into the corresponding separation holes respectively to realize the cleaning operation of the separation holes. At the same time, the protrusions 32 can be made of rubber or other materials to facilitate the accurate insertion of the protrusions 32 into the separation holes. The front end of the roller is rotatably connected to the rear end of the first support frame 33 on the left side, and the rear end of the roller is connected to the drive mechanism 4 to facilitate the drive mechanism 4 to drive the roller to rotate.

[0025] Furthermore, the drive mechanism 4 includes a motor mounting bracket 41, which is fixedly connected to the top side of the rear end of the collection box 1. A first motor 42 is fixedly connected to the top of the motor mounting bracket 41. A drive gear 43 is coaxially fixedly connected to the output end of the first motor 42. An external gear ring 44 meshes with one side of the drive gear 43. The external gear ring 44 is coaxially fixedly connected to the radial surface of the rear end of the roller. A driven gear 45 meshes with one side of the external gear ring 44. The driven gear 45 is coaxially fixedly connected to the rear end of the roller. The rear end of the driven gear 45 is rotatably connected to the surface of the second support frame 34 located on the left side.

[0026] In specific implementation, the motor mounting bracket 41 provides installation space for the first motor 42. The active gear 43 fixedly connected to the output end of the first motor 42 meshes with the outer gear ring 44 fixedly installed on the radial surface of the drum near the feed inlet 9. When the first motor 42 controls the active gear 43 to rotate, the meshing of the active gear 43 with the outer gear ring 44 drives the separation drum 2 to rotate axially. The rotating separation drum 2 can not only improve the solid-liquid separation efficiency, but also discharge the solid waste after solid-liquid separation from the discharge port 8 of the separation drum 2. When the outer gear ring 44 drives the separation drum 2 to rotate axially, the driven gear 45 coaxially connected to the rear end of the drum meshes with the outer gear ring 44 at the same time. The axial rotation of the separation drum 2 and the outer gear ring 44 drives the driven gear 45 and the drum to rotate axially between the first support frame 33 and the second support frame 34 on the left side. When the drum rotates axially, the protrusion 32 can be controlled to correspond with the separation hole and be inserted into the separation hole to realize the hole cleaning operation, which facilitates the cleaning of solid waste blocked in the separation hole.

[0027] Furthermore, the subdivision mechanism 5 includes a filter frame 51, the bottom two ends of which are in contact with the upper surfaces of two placement blocks 12. A horizontal plate 52 is hinged to one side of the filter frame 51, and an opening 13 is provided on one side of the collection chamber 11. The horizontal plate 52 is slidably connected to the opening 13. A lifting rod 54 is fixedly connected to the top of the filter frame 51. A second motor 55 is fixedly connected to the rear end of the collection box 1. The output end of the second motor 55 extends into the collection chamber 11 and is coaxially fixedly connected to a rotating shaft 56. Multiple eccentric blocks 57 are coaxially fixedly connected to the radial surface of the rotating shaft 56, and the eccentric blocks 57 are in contact with the lower surface of the lifting rod 54.

[0028] In practical implementation, the bottom of the filter frame 51 is provided with multiple filter holes, the diameter of which is smaller than the diameter of the separation hole, so as to facilitate the separation and filtration of finer solid waste and liquid. The bottom of the filter frame 51 and the horizontal plate 52 on opposite sides is provided with a hinge rod, which is used to hinge the filter frame 51 and the horizontal plate 52. At the same time, the horizontal plate 52 facing the filter frame 51 is provided with a chamfer, which facilitates the upward lifting of the filter frame 51 and avoids the filter frame 51 being unable to lift upward due to the obstruction of the horizontal block. A gate-shaped lifting rod 54 is fixedly connected to the top of the filter frame 51. When the second motor 55 controls the rotating shaft 56 to rotate, the rotating shaft 56 drives multiple eccentric blocks 57 fixed on its radial surface to rotate counterclockwise. When the eccentric blocks 57 rotate counterclockwise, one side of the eccentric block 57 contacts the bottom of the lifting rod 54 and rotates further, causing the lifting rod 54 to be lifted upward. Then the eccentric block 57 disengages from the lifting rod 54. After the lifting rod 54 is no longer lifted by the eccentric block 57, it falls back down by gravity. When the lifting rod 54 swings up and down, it causes the filter frame 51 to flip and swing upward around the hinge point of the filter frame 51 and the horizontal plate 52. The continuous upward flipping and falling of the filter frame 51 can improve the separation efficiency of the filter frame 51. An opening 13 is provided on one side of the collection box 1. The filter frame 51 and the horizontal plate 52 are slid into the collection chamber 11 through the opening 13. At the same time, the bottom of the filter frame 51 is supported in the collection chamber 11 by the placement blocks 12 fixed to the front and rear inner walls of the collection chamber 11. The liquid filtered by the filter frame 51 falls to the bottom of the collection chamber 11 and is discharged from the collection box 1 through the drain trough 6.

[0029] Furthermore, the bottom of the collection chamber 11 is set in a funnel shape, and the drainage trough 6 is set at a downward slope.

[0030] In practical implementation, the funnel-shaped collection chamber 11 facilitates the flow of liquid waste to the drainage trough 6 at the bottom of the collection chamber 11, which improves the drainage efficiency of liquid waste. At the same time, the inlet end of the drainage trough 6 is higher than the outlet end of the drainage trough 6, which can further improve the drainage efficiency of liquid waste and save the drainage efficiency of solid-liquid separation.

[0031] Furthermore, the surfaces of the multiple protrusions 32 and the multiple separation holes are respectively provided with rounded corners.

[0032] In practical implementation, the rounded corners make it easy for the protrusion 32 to be accurately inserted into the separation hole, which in turn helps the protrusion 32 to push out the waste that is blocking the separation hole, thus avoiding blockage of the separation hole.

[0033] Furthermore, a handle 53 is fixedly connected to one end of the horizontal plate 52 located outside the collection chamber 11.

[0034] In practice, the handle 53 makes it easy to pull the horizontal plate 52 and the filter frame 51 out of the collection box 1, thereby facilitating the cleaning of solid waste left on the filter frame 51.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A water-based drilling waste solid-liquid separation device, comprising a collection box (1), a separation cylinder (2) rotatably connected to the top of the collection box (1), a plurality of separation holes being provided on the surface of the separation cylinder (2), a discharge port (8) being provided at the front end of the separation cylinder (2), a feed port (9) being provided at the rear end of the separation cylinder (2), and a discharge plate (7) being fixedly connected to the front end of the collection box (1), characterized in that: The top front and rear ends of the collection box (1) are fixedly connected to two first support frames (33) and two second support frames (34). A ring (21) is rotatably connected between the two first support frames (33) and the two second support frames (34). The front ring (21) is rotatably connected to the front outer surface of the separation cylinder (2), and the rear ring (21) is rotatably connected to the outer surface of the feed port (9). A hole cleaning mechanism (3) for cleaning the blockage of the separation hole is rotatably connected between the first support frame (33) and the second support frame (34) on the left side. A drive mechanism (4) for controlling the axial rotation of the separation cylinder (2) and the hole cleaning mechanism (3) is fixedly connected to one side of the rear end of the collection box (1). A collection cavity (11) is opened on the upper surface of the collection box (1). A drain trough (6) is opened at the bottom of the collection cavity (11). Placement blocks (12) are fixedly connected to the front and rear ends of the collection cavity (11). A subdivision mechanism (5) is set on the top of the placement block (12).

2. The water-based drilling waste solid-liquid separation device according to claim 1, characterized in that: The hole cleaning mechanism (3) includes a roller (31), and multiple protrusions (32) are provided on the surface of the roller (31). The protrusions (32) are matched with the size of the separation hole. The front end of the roller is rotatably connected to the rear end surface of the first support frame (33) on the left side of the displacement, and the rear end of the roller is connected to the drive mechanism (4).

3. The water-based drilling waste solid-liquid separation device according to claim 2, characterized in that: The drive mechanism (4) includes a motor mounting bracket (41), which is fixedly connected to the top side of the rear end of the collection box (1). A first motor (42) is fixedly connected to the top of the motor mounting bracket (41). A drive gear (43) is fixedly connected to the output end of the first motor (42) on the same axis. An external gear ring (44) meshes with one side of the drive gear (43). The external gear ring (44) is fixedly connected to the radial surface of the rear end of the roller on the same axis. A driven gear (45) meshes with one side of the external gear ring (44). The driven gear (45) is fixedly connected to the rear end of the roller on the same axis. The rear end of the driven gear (45) is rotatably connected to the surface of the second support frame (34) located on the left side.

4. A water-based drilling waste solid-liquid separation device according to claim 1, 2 or 3, characterized in that: The subdivision mechanism (5) includes a filter frame (51), the bottom ends of the filter frame (51) are in contact with the upper surfaces of two placement blocks (12), a horizontal plate (52) is hinged to one side of the filter frame (51), an opening (13) is opened on one side of the collection chamber (11), the horizontal plate (52) is slidably connected to the opening (13), a lifting rod (54) is fixedly connected to the top of the filter frame (51), a second motor (55) is fixedly connected to the rear end of the collection box (1), the output end of the second motor (55) extends into the collection chamber (11) and is coaxially fixedly connected to a rotating shaft (56), a plurality of eccentric blocks (57) are coaxially fixedly connected to the radial surface of the rotating shaft (56), and the eccentric blocks (57) are in contact with the lower surface of the lifting rod (54).

5. A water-based drilling waste solid-liquid separation device according to claim 1, 2 or 3, characterized in that: The bottom of the collection chamber (11) is set in a funnel shape, and the drain trough (6) is set to slope downward.

6. The water-based drilling waste solid-liquid separation device according to claim 4, characterized in that: The bottom of the collection chamber (11) is set in a funnel shape, and the drain trough (6) is set to slope downward.

7. A water-based drilling waste solid-liquid separation device according to claim 2, characterized in that: The surfaces of multiple protrusions (32) and multiple separation holes are respectively provided with rounded corners.

8. A water-based drilling waste solid-liquid separation device according to claim 4, characterized in that: A handle (53) is fixedly connected to one end of the horizontal plate (52) located outside the collection chamber (11).

9. A water-based drilling waste solid-liquid separation device according to claim 6, characterized in that: A handle (53) is fixedly connected to one end of the horizontal plate (52) located outside the collection chamber (11).

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