Petroleum exploration rock chip multi-stage screening device

Abstract

The utility model relates to the field of petroleum exploration technology, concretely is a kind of petroleum exploration rock chip multistage screening equipment for solving the problem that sieve plate dismounting is complicated and material receiving tray direction adjustment is inconvenient.Equipment includes support, sieve box and spring between the two, multiple groups of sockets are equipped in sieve box inner side, and sieve plate both sides are inserted between the same group socket.Lock catch mechanism contains the plug-in ring of rotating rod fixation and the plug-in board of sieve plate side wall, plug-in ring rotation passes through plug-in board through-hole and realizes the quick locking of sieve plate.Material receiving tray is located below sieve plate, and its discharge direction is adjusted by adjusting mechanism: guide telescopic rod is composed of guide inner strip hinged in material receiving tray and guide outer strip sleeved, bolt is inserted into material receiving tray side wall slot after being penetrated through rotating strip, and moving bolt can rotate guide outer strip to switch slot position to change discharge direction.The structure simplifies sieve plate replacement step, avoids material receiving tray dismounting adjustment, to improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of petroleum exploration technology, and in particular to a multi-stage screening device for petroleum exploration cuttings. Background Technology

[0002] In oil exploration operations, drilling cuttings need to be graded by particle size using screening equipment for geological analysis. Currently, the equipment has areas for improvement: the screen plates are usually fixed with bolts, which makes disassembly and repair time-consuming when the screen holes are clogged or the screen mesh is worn and broken, wasting considerable operation time; the discharge direction of the receiving tray is fixed, requiring disassembly and reassembly to adjust the conveying path, which is cumbersome and affects the continuity of operations. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of cumbersome operation in existing technologies by proposing a multi-stage screening device for petroleum exploration cuttings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A multi-stage screening device for oil exploration cuttings includes a support frame and a screen box, wherein the support frame and the screen box are connected by springs; Multiple screen plates are provided. The inner wall of the screen box is provided with multiple sets of sockets. Each set of sockets has two columns, and each column is fixedly installed on the inner wall of the screen box. The screen plates are inserted between the two columns of sockets in the same set, and the multiple screen plates are arranged vertically. The outlet end of the screen box is fixedly provided with multiple receiving trays, and the multiple receiving trays are respectively located below the multiple screen plates. A locking mechanism is used to fix the screen plate to the screen box. The locking mechanism includes multiple insert rings. Multiple rotating rods are rotatably arranged on the outer side wall of the screen box. The multiple insert rings are respectively fixedly arranged on the outer wall of the rotating rods. A first insert plate is fixedly arranged on one side of the screen plate. The rotating rods are provided with notches. An adjustment mechanism is used to adjust the discharge direction of the receiving tray. The adjustment mechanism includes multiple sets of telescopic bars. Each set of telescopic bars includes an inner guide bar and an outer guide bar that is slidably sleeved on the outer wall of the inner guide bar. One end of the inner guide bar is rotatably disposed on the surface of the receiving tray, and one end of the outer guide bar is rotatably disposed on a rotating bar. Slots are provided on both sides of the surface of the receiving tray, and the rotating bar and the slot on the same side are connected by the same pin.

[0005] In one possible design, the inner wall of the screen box is provided with multiple sets of spray pipes, which are located above multiple screen plates respectively. Each set of spray pipes has multiple spray pipes, and the spray pipes are fixedly installed on the inner wall of the screen box. The outer wall of the spray pipes is provided with nozzles.

[0006] In one possible design, the inner wall of the screen box is provided with multiple guide plates, and multiple sets of guide plates are respectively located on top of multiple screen plates. Each set of guide plates has two plates, and the guide plates are fixedly installed on the inner wall of the screen box.

[0007] In one possible design, the locking mechanism further includes multiple insert rods. A fixing rod is fixedly installed on the outer wall of the screen box. A sliding rod is slidably sleeved on the outer wall of the fixing rod. One end of each of the multiple insert rods is fixedly installed on the outer wall of the sliding rod. A second insert plate is fixedly installed on one side of the screen plate. The insert rods are inserted into the holes of the second insert plate on the same side. A second spring is sleeved on the outer wall of the fixing rod, and the two ends of the second spring are connected to the sliding rod and the fixing rod respectively through spring seats.

[0008] In one possible design, a fixed shaft is fixedly installed on the outer wall of the screen box, a torsion bar is rotatably sleeved on the outer wall of the fixed shaft, an L-shaped frame is fixedly installed on the outer wall of the slide bar, one end of the torsion bar cooperates with the L-shaped frame, a torsion spring is sleeved on the outer wall of the fixed shaft, and the two ends of the torsion spring are connected to the torsion bar and the fixed shaft respectively through spring seats.

[0009] In one possible design, a handle is fixedly provided on the side wall of the twist bar.

[0010] In one possible design, the adjustment assembly further includes a first spring sleeved on the outer wall of the pin, and the two ends of the first spring are connected to the outer wall of the pin and the surface of the rotating bar respectively through spring seats.

[0011] In one possible design, multiple vibration motors are installed on the outer wall of the screen box.

[0012] In this application, in actual use, the rock chips conveyed to the surface of the screen plate are screened by driving a vibrating motor. Multiple screen plates screen the rock chips in stages, and the rock chips screened out at each stage enter the corresponding conveyor belt below through the receiving tray. The screen plates are installed by plugging them into sockets on the side walls. When assembling the screen plates, the worker first faces the notch of the insertion ring toward the insertion side, while another worker rotates the torsion bar by the handle, causing one end of the torsion bar to rotate away from the L-shaped frame. At this time, the slide bar will be moved upward by the force of the second spring, and the slide bar will drive the insertion rod upward. Then, the worker can insert the screen plate into the screen box along the socket. After that, the insertion ring is rotated so that the insertion ring passes through the through hole of the first insertion plate, and the screen plate is initially fixed. After multiple screen plates are inserted, the worker who rotated the handle rotates it in the opposite direction, so that it works with the torsion spring to drive the torsion bar to reset. When the torsion bar is reset, it will abut against the horizontal surface of the L-shaped frame and push it downward, so that the L-shaped frame moves downward through the slide bar and drives the insertion rod to insert it into the hole of the second insertion plate, thereby further fixing multiple screen plates and completing the assembly. By moving the pin upwards to disengage it from the slot of the receiving tray, the outer guide bar can be rotated along the rotation point of the inner guide bar to move it to the other side of the receiving tray. Then, the pin is inserted into the slot on the other side, causing the screened rock chips to change their direction of movement.

[0013] In this utility model, the multi-stage screening equipment for petroleum exploration cuttings can achieve rapid assembly of the screen plates through a locking mechanism, making it convenient for workers to disassemble and install, thereby reducing subsequent maintenance time. In this utility model, the multi-stage screening equipment for petroleum exploration cuttings can easily change the screening direction through an adjustment mechanism, thus eliminating the need to disassemble and reassemble it, thereby reducing the subsequent adjustment time. In this invention, during maintenance work, when it is necessary to remove the screen plate to clean the screen holes or repair the screen crack caused by wear, the workers can quickly carry out the disassembly and subsequent installation work, thereby reducing maintenance time and making it easy to change the direction of rock chips being screened out. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a multi-stage screening device for petroleum exploration cuttings proposed in this utility model; Figure 2 This utility model Figure 1 Enlarged view of the structure of section A; Figure 3 This utility model Figure 1 Enlarged view of the structure of section B; Figure 4 This is a rear view structural diagram of a multi-stage screening device for petroleum exploration cuttings proposed in this utility model; Figure 5 This utility model Figure 4 Enlarged view of the structure of section C; Figure 6 This utility model Figure 4 Enlarged view of the structure of part D in the middle.

[0015] In the diagram: 1. Support; 2. Spring; 3. Screen box; 4. Screen plate; 5. Receiving tray; 6. Outer guide bar; 7. Inner guide bar; 8. Guide plate; 9. Socket; 10. Nozzle; 11. Spray pipe; 12. Pin; 13. Rotating bar; 14. Spring No. 1; 15. Insert plate No. 1; 16. Notch; 17. Rotating rod; 18. Insert ring; 19. Fixing rod; 20. Spring No. 2; 21. Slide rod; 22. Torsion bar; 23. Torsion spring; 24. L-shaped frame; 25. Fixing shaft; 26. Insert plate No. 2; 27. Insert rod; 28. Handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In one embodiment: Reference Figure 1-2 A multi-stage screening device includes: a support 1 and a screen box 3, wherein the support 1 and the screen box 3 are connected by multiple sets of springs 2.

[0018] Multiple sets of sockets 9 are evenly spaced vertically along the inner wall of the screen box 3. Each set of sockets 9 includes two rows of symmetrically arranged metal frames. The two sides of the screen plate 4 are inserted between the two rows of sockets 9 in the same set, forming a detachable structure. Screen holes are opened on the surface of the screen plate 4, and the diameter of the screen holes of multiple screen plates 4 decreases from top to bottom to achieve multi-stage screening. A receiving tray 5 is welded to the bottom of each layer of screen plate 4 at the outlet end of the screen box 3, and a corresponding conveyor belt is set below the receiving tray 5.

[0019] refer to Figure 3-6 The locking mechanism includes: multiple insert rings 18; rotating rods 17 are rotatably installed at corresponding positions on each layer of screen plate 4 on the outer wall of the screen box 3; the insert rings 18 are fixed on their outer walls; and notches 16 are opened on the surface of the insert rings 18. A first insert plate 15 with through holes is welded to the side wall of the screen plate 4. When the screen plate 4 is fully inserted into the socket 9, rotating rods 17 are rotated to allow the insert rings 18 to pass through the through holes, forming a preliminary fixation. A fixing rod 19 is welded to the outer wall of the screen box 3; a sliding rod 21 is slidably sleeved on the outer wall of the fixing rod 19; multiple insert rods 27 are welded to the outer wall of the sliding rod 21; and a second insert plate 26 with holes is welded to the other side of the screen plate 4. A second spring 20 is sleeved on the outer wall of the fixing rod 19; the two ends of the second spring 20 abut against the bottom surface of the sliding rod 21 and the stepped surface of the fixing rod 19 respectively through spring seats. A fixed shaft 25 is welded to the outer wall of the screen box 3. A torsion bar 22 is sleeved on the outer wall of the fixed shaft 25 through a torsion spring 23. The end of the torsion bar 22 is engaged with the L-shaped frame 24 on the outer wall of the slide bar 21.

[0020] Specifically, the sieve plate 4 is installed by plugging it into the socket 9 on the side wall. When assembling the sieve plate 4, the worker first aligns the notch 16 of the insertion ring 18 with the insertion side, and another worker rotates the toggle bar 22 through the handle 28, causing one end of the toggle bar 22 to rotate and disengage from the L-shaped frame 24. At this time, the slide bar 21 will be moved upward by the force of the second spring 20. The slide bar 21 drives the insertion rod 27 to move upward. Then, the worker can insert the sieve plate 4 into the sieve box 3 along the socket 9. After that, the insertion ring 18 is rotated so that the insertion ring 18 passes through the first insertion plate 15. The screen plates 4 are initially fixed through the through holes. After multiple screen plates 4 are inserted, the operator rotates the handle 18 in the opposite direction, causing it to work with the torsion spring 23 to reset the torsion bar 22. During reset, the torsion bar 22 will abut against the horizontal surface of the L-shaped frame 24 and push it downwards. This causes the L-shaped frame 24 to move downwards via the slide rod 21, allowing the insertion rod 27 to be inserted into the hole of the second insertion plate 26, further fixing the multiple screen plates 4 and completing the assembly. The screen plates can be designed in rectangular, trapezoidal, or polygonal shapes to adapt to different screening needs. For example, rectangular screen plates facilitate standardized production, trapezoidal structures optimize the flow path of rock cuttings, and polygonal designs enhance the strength of the screen mesh.

[0021] This application can be used in the field of petroleum exploration, or in other fields applicable to this application.

[0022] In another embodiment: Reference Figure 1 , Figure 3 A multi-stage screening device for petroleum exploration cuttings is disclosed. Applied to the petroleum exploration field, the adjustment mechanism includes multiple sets of telescopic bars. Each set includes an inner guide bar 7 and an outer guide bar 6. The end of the inner guide bar 7 is hinged to the center of the surface of the receiving tray 5 via a pin, and the end of the outer guide bar 6 is hinged to a rotating bar 13 via a pin. Two symmetrical slots are provided on the side of the receiving tray 5. Through holes are provided on the surface of the rotating bar 13. A pin 12 passes through the through hole and is inserted into the slot. A first spring 14 is fitted on the outer wall of the pin 12, with its two ends abutting against the surface of the rotating bar 13 and the head of the pin 12 respectively via spring seats. When it is necessary to change the discharge direction, the pin 12 is lifted to disengage it from the slot, the outer guide bar 6 is rotated around the hinge point, and then reinserted into the opposite slot to change the discharge direction of the receiving tray 5.

[0023] refer to Figure 2 Each layer of screen plate 4 is equipped with a spray pipe 11 above it. The spray pipe 11 is connected to a water pump through a high-pressure water pipe, and multiple nozzles 10 are provided on the outer wall to spray water onto the surface of the screen plate 4 to suppress dust.

[0024] refer to Figure 1 Two sets of guide plates 8 are set above each layer of screen plate 4 to limit and guide the rock chips on the surface of screen plate 4, helping them to be close to the center position when discharged.

[0025] However, as is well known to those skilled in the art, the working principle and wiring method of vibration motors are commonplace and are all conventional methods or common knowledge. Therefore, they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0026] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage screening device for petroleum exploration cuttings, characterized in that, include: A support (1) and a sieve box (3) are connected by a spring (2); Multiple screen plates (4), the inner wall of the screen box (3) is provided with multiple sets of sockets (9), each set of sockets (9) is provided with two columns, and each column is fixedly provided on the inner wall of the screen box (3). The screen plates (4) are inserted between the two columns of sockets (9) in the same set, and the multiple screen plates (4) are arranged vertically. The outlet end of the screen box (3) is fixedly provided with multiple receiving trays (5), and the multiple receiving trays (5) are respectively located below the multiple screen plates (4). A locking mechanism is used to fix the sieve plate (4) to the sieve box (3). The locking mechanism includes multiple insert rings (18). Multiple rotating rods (17) are rotatably provided on the outer side wall of the sieve box (3). The multiple insert rings (18) are respectively fixed on the outer wall of the rotating rods (17). A first insert plate (15) is fixedly provided on one side of the sieve plate (4). The rotating rods (17) are provided with notches (16). An adjustment mechanism is used to adjust the discharge direction of the receiving tray (5). The adjustment mechanism includes multiple sets of telescopic bars. Each set of telescopic bars includes an inner guide bar (7) and an outer guide bar (6) that is slidably sleeved on the outer wall of the inner guide bar (7). One end of the inner guide bar (7) is rotatably disposed on the surface of the receiving tray (5). One end of the outer guide bar (6) is rotatably disposed with a rotating bar (13). Slots are provided on both sides of the surface of the receiving tray (5). The rotating bar (13) and the slot on the same side are connected with the same pin (12).

2. The multi-stage screening equipment for petroleum exploration cuttings according to claim 1, characterized in that, The inner wall of the sieve box (3) is provided with multiple sets of spray pipes (11). The multiple sets of spray pipes (11) are located above multiple sieve plates (4). Each set of spray pipes (11) is provided with multiple spray pipes, and the spray pipes (11) are fixedly installed on the inner wall of the sieve box (3). The outer wall of the spray pipes (11) is provided with nozzles (10).

3. The multi-stage screening equipment for petroleum exploration cuttings according to claim 1, characterized in that, The inner wall of the sieve box (3) is provided with multiple guide plates (8). Multiple sets of guide plates (8) are located on the top of multiple sieve plates (4). Each set of guide plates (8) has two plates, and the guide plates (8) are fixedly installed on the inner wall of the sieve box (3).

4. The multi-stage screening equipment for petroleum exploration cuttings according to claim 1, characterized in that, The locking mechanism also includes multiple insert rods (27). A fixing rod (19) is fixedly installed on the outer wall of the sieve box (3). A sliding rod (21) is slidably sleeved on the outer wall of the fixing rod (19). One end of each of the multiple insert rods (27) is fixedly installed on the outer wall of the sliding rod (21). A second insert plate (26) is fixedly installed on one side of the sieve plate (4). The insert rods (27) are inserted into the holes of the second insert plate (26) on the same side. A second spring (20) is sleeved on the outer wall of the fixing rod (19). The two ends of the second spring (20) are connected to the sliding rod (21) and the fixing rod (19) respectively through spring seats.

5. A multi-stage screening device for petroleum exploration cuttings according to claim 4, characterized in that, A fixed shaft (25) is fixedly installed on the outer wall of the sieve box (3). A torsion bar (22) is rotatably sleeved on the outer wall of the fixed shaft (25). An L-shaped frame (24) is fixedly installed on the outer wall of the slide rod (21). One end of the torsion bar (22) cooperates with the L-shaped frame (24). A torsion spring (23) is sleeved on the outer wall of the fixed shaft (25). The two ends of the torsion spring (23) are connected to the torsion bar (22) and the fixed shaft (25) respectively through spring seats.

6. A multi-stage screening device for petroleum exploration cuttings according to claim 5, characterized in that, A handle (28) is fixedly provided on the side wall of the twist bar (22).

7. The multi-stage screening equipment for petroleum exploration cuttings according to claim 1, characterized in that, The adjustment mechanism also includes a first spring (14) sleeved on the outer wall of the pin (12), and the two ends of the first spring (14) are connected to the outer wall of the pin (12) and the surface of the rotating bar (13) respectively through spring seats.

8. A multi-stage screening device for petroleum exploration cuttings according to claim 1, characterized in that, Multiple vibration motors are installed on the outer wall of the sieve box (3).

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