A drilling waste mud receiving device

Abstract

The utility model relates to oilfield drilling technical field especially relates to a kind of drilling waste mud receiving device.The drilling waste mud receiving device includes receiving tank, the receiving tank is equipped with the discharge assembly to the solid sludge after separation is discharged, and the liquid discharge assembly to the sewage after separation is discharged;The discharge assembly includes top frame, the top frame is fixedly installed at the top of receiving tank, the bottom of the top frame is installed with the driving rod of rotation connection, and the outside of the driving rod is equipped with the fixed connection of helical blade and guide ring.The drilling waste mud receiving device provided by the utility model can first unfold the bottom plugging disc when discharging the separated sludge, then control driving rod rotation, the rotating driving rod will drive the helical blade on the outer wall to rotate synchronously, at this time, the rotating helical blade will spiral convey the separated solid sludge, and then the discharge of fixed sludge can be more smooth.

Description

Technical Field

[0001] This utility model relates to the field of oilfield drilling technology, and in particular to a drilling waste mud receiving device. Background Technology

[0002] Drilling refers to the work of drilling holes into the ground using mechanical equipment or manpower. It usually refers to the project of drilling wells and large-diameter water supply wells for exploring or developing liquid and gaseous minerals such as oil and natural gas. A large amount of waste mud is generated during the drilling process. In order to prevent the waste mud from coming into contact with the ground and causing pollution, waste mud receiving devices are generally used to receive the waste mud.

[0003] A drilling waste mud receiving device with Chinese patent publication number CN216427073U, as described in its specification, discharges the separated mud by squeezing it downwards using a conical extrusion plate. In this squeezing discharge method, the mud is prone to compaction and reduced fluidity during the downward squeezing process, leading to caking and blockage, which in turn reduces the smoothness of discharge.

[0004] Therefore, it is necessary to provide a new drilling waste mud receiving device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a drilling waste mud receiving device.

[0006] The drilling waste mud receiving device provided by this utility model includes a receiving tank, which is equipped with a discharge component for discharging the separated solid sludge and a discharge component for discharging the separated wastewater. The discharge assembly includes a top frame, which is fixedly installed on the top of the receiving tank. A drive rod is rotatably connected to the bottom of the top frame, and a spiral blade and a guide ring are fixedly connected to the outside of the drive rod. The bottom of the receiving tank is provided with a discharge pipe, and the spiral blade is located inside the discharge pipe.

[0007] Preferably, the drainage assembly includes a mounting plate, which is fixedly mounted on the top of the top frame. Guide rods that are slidably connected are inserted into both sides of the top of the mounting plate, and the bottom ends of the two guide rods are fixedly mounted with the same float plate.

[0008] Preferably, the float plate has a liquid suction hole inside, a liquid suction head is fixedly installed inside the liquid suction hole, a liquid discharge pump is fixedly installed on the mounting plate, a connecting hose is fixedly installed between the input end of the liquid discharge pump and the liquid suction head, and a connecting discharge pipe is fixedly installed at the output end of the liquid discharge pump.

[0009] Preferably, the discharge pipe is fitted with a fixedly connected support frame, and a rotatably connected sealing disc is mounted on the outer wall of the support frame via a shaft, and a motor for controlling the rotation of the sealing disc is also fixedly mounted on the support frame.

[0010] Preferably, the top of the sealing disc abuts against the bottom of the discharge pipe, and the diameter of the sealing disc is larger than the diameter of the discharge pipe.

[0011] Preferably, a feed pipe is fixedly installed on the side wall of the receiving tank.

[0012] Preferably, a motor for controlling the rotation of the drive rod is fixedly installed on the top of the top frame, and the outer wall of the guide ring abuts against and is rotatably connected to the inner wall of the receiving tank.

[0013] Compared with related technologies, the drilling waste mud receiving device provided by this utility model has the following beneficial effects: 1. When discharging the separated slurry, the bottom sealing plate can be unfolded first, and then the drive rod can be controlled to rotate. The rotating drive rod will drive the spiral blades on the outer wall to rotate synchronously. At this time, the rotating spiral blades will convey the separated solid slurry in a spiral manner, which will make the discharge of the fixed slurry smoother. 2. After the sedimentation and separation of the mud is completed, the float plate moves synchronously with the height of the liquid under the buoyancy of the separated water source, so that the suction head on the float plate and the liquid surface can always maintain a relatively fixed distance. Therefore, when the discharge pump is working, the height of the suction head can be adaptively adjusted, thus improving the smoothness of the discharge of the separated liquid. 3. When the sludge is added to the receiving tank for chemical separation, the rotating drive rod will drive the spiral blades and guide ring on the outer wall to assist in stirring the sludge inside. Therefore, the contact between the agent and the sludge can be more uniform, which helps to improve the subsequent sludge separation effect. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the drilling waste mud receiving device provided by this utility model; Figure 2 for Figure 1 A partial cross-sectional structural diagram of the receiving tank shown. Figure 3 for Figure 1 The diagram shows the structure of the discharge assembly and the liquid discharge assembly. Figure 4 for Figure 3 The diagram shows the structure of the material discharge assembly. Figure 5 for Figure 3The diagram shows the structure of the drainage assembly.

[0015] Numbered in the diagram: 1. Receiving tank; 11. Feed pipe; 12. Discharge pipe; 13. Support frame; 131. Sealing plate; 2. Discharge assembly; 21. Top frame; 22. Drive rod; 23. Spiral blade; 24. Guide ring; 3. Drainage assembly; 31. Mounting plate; 311. Drainage pump; 312. Drainage pipe; 32. Guide rod; 33. Float; 331. Suction hole; 332. Suction head; 34. Connecting hose. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 5 This utility model provides a drilling waste mud receiving device, which includes a receiving tank 1. The receiving tank 1 is equipped with a discharge component 2 for discharging the separated solid sludge and a discharge component 3 for discharging the separated wastewater.

[0019] In the embodiments of this utility model, please refer to Figures 1 to 5 The discharge assembly 2 includes a top frame 21, which is fixedly installed on the top of the receiving tank 1. A drive rod 22 is rotatably connected to the bottom of the top frame 21, and a spiral blade 23 and a guide ring 24 are fixedly connected to the outside of the drive rod 22. The bottom of the receiving tank 1 is provided with a discharge pipe 12, and the spiral blade 23 is located inside the discharge pipe 12. A motor for controlling the rotation of the drive rod 22 is fixedly installed on the top of the top frame 21, and the outer wall of the guide ring 24 abuts against and is rotatably connected to the inner wall of the receiving tank 1.

[0020] It should be noted that when adding sludge into receiving tank 1 for chemical separation, the motor can be started. The rotating motor will drive the drive rod 22 and the spiral blades 23 and guide ring 24 on its outer wall to rotate synchronously, thereby assisting in stirring the sludge in receiving tank 1. This makes the contact between the agent and the sludge more uniform and helps to improve the subsequent sludge separation effect. When the separated sludge needs to be discharged later, the bottom sealing plate 131 can be unfolded first, and then the drive rod 22 can be controlled to rotate. The rotating drive rod 22 will drive the spiral blades 23 on the outer wall to rotate synchronously. At this time, the rotating spiral blades 23 will spirally convey the separated solid sludge, thereby making the discharge of the fixed sludge smoother. In this embodiment: through the rotational connection between the outer wall of the guide ring 24 and the receiving tank 1, when the motor drives the drive rod 22 to rotate, the guide ring 24 will limit the drive rod 22 in the horizontal direction by abutting against the receiving tank 1, thereby supporting the end of the drive rod 22 away from the motor and preventing the end of the drive rod 22 from swinging randomly when rotating, thus improving the stability of the rotation of the drive rod 22. With the insertion installation method, when the material discharge assembly 2 needs to be disassembled and repaired later, after tightening the bolts between the top frame 21 and the receiving tank 1, the top frame 21 can be lifted by external lifting components to complete the disassembly, making the entire disassembly more convenient and flexible.

[0021] In the embodiments of this utility model, please refer to Figures 1 to 5 The drainage assembly 3 includes a mounting plate 31, which is fixedly mounted on the top of the top frame 21. Guide rods 32 with sliding connection are inserted on both sides of the top of the mounting plate 31, and the same float plate 33 is fixedly mounted on the bottom end of the two guide rods 32. A suction hole 331 is opened inside the float plate 33, and a suction head 332 is fixedly mounted inside the suction hole 331. A drainage pump 311 is fixedly mounted on the mounting plate 31, and a connecting hose 34 is fixedly installed between the input end of the drainage pump 311 and the suction head 332. A drainage pipe 312 is fixedly installed at the output end of the drainage pump 311.

[0022] It should be noted that the buoyancy of the float plate 33 is greater than the weight of the guide rod 32, the suction head 332, and the connecting hose 34 acting on the float plate 33. Therefore, the float plate 33 can float smoothly on the surface of the separated sludge liquid. During use, when the float plate 33 moves upward with the sewage liquid surface, the upward-moving float plate 33 can drive the connecting hose 34 through the suction head 332. At this time, the connecting hose 34 will bend under the force, thus avoiding the connecting hose 34 from blocking the upward floating trajectory of the float plate 33. During the floating process, the guide rod 32 can also limit the horizontal movement of the float plate 33, thus preventing the float plate 33 from drifting randomly and causing the connecting hose 34 to become entangled. Among them, the connecting hose 34 can be made of spiral steel wire reinforced corrugated pipe to avoid the phenomenon of bending and blockage of the connecting hose 34 along the top of the float during normal use; In this embodiment: a limiting sleeve is fitted on the upper part of the outer wall of the guide rod 32 to block the downward sliding trajectory of the guide rod 32, and after the bottom of the limiting sleeve abuts against the top of the mounting plate 31, the float plate 33 at the bottom of the guide rod 32 is located above the guide ring 23. Thus, when the guide rod 32 is fully inserted into the receiving tank 1, the float plate 33 and the guide ring 24 can be prevented from contacting each other, thus avoiding the phenomenon of blockage of the subsequent rotation of the guide ring 24. Meanwhile, the float plate 33 is located outside the feed pipe 11, so when the feed pipe 11 injects sludge, the sludge falling into the receiving tank 1 will not fall above the float plate 33, so that the float plate 33 can rise synchronously with the rise of the sludge liquid level, thereby preventing the float plate 33 from being buried by the sludge.

[0023] In the embodiments of this utility model, please refer to Figures 1 to 5 The discharge pipe 12 is fitted with a fixed support frame 13, and a rotatably connected sealing disc 131 is mounted on the outer wall of the support frame 13 via a shaft. A motor for controlling the rotation of the sealing disc 131 is also fixedly mounted on the support frame 13. The top of the sealing disc 131 abuts against the bottom of the discharge pipe 12, and the diameter of the sealing disc 131 is larger than the diameter of the discharge pipe 12.

[0024] It should be noted that a rubber sheet is fixedly installed on the top of the sealing disc 131. Due to the large diameter of the sealing disc 131, when the top of the sealing disc 131 abuts against the bottom of the discharge pipe 12, the abutting force can deform the rubber sheet, thereby filling the gap between the sealing disc 131 and the discharge pipe 12, thus improving the sealing effect of the sealing disc 131. Therefore, it can prevent the sludge inside the receiving tank 1 from leaking randomly.

[0025] In the embodiments of this utility model, please refer to Figures 1 to 5 A feed pipe 11 is fixedly installed on the side wall of the receiving tank 1.

[0026] It should be noted that during use, by connecting the feed pipe 11 to the external discharge pipe of drilling waste mud, the drilling waste mud can be injected into the receiving tank 1, which facilitates the subsequent separation and treatment of the mud.

[0027] The working principle of the drilling waste mud receiving device provided by this utility model is as follows: Before use, the feed pipe 11 in the device can be connected to the discharge pipe of the drilling waste mud, and the drain pipe 312 can be connected to the external sewage pipe. After the device pipe is connected, the drilling waste mud can be injected into the receiving tank 1 through the feed pipe 11. After the sludge is injected, chemicals such as coagulants can be added to the receiving tank 1. After the chemicals are added, the motor can be started. The working motor will drive the drive rod 22 at the output end to rotate. At this time, the rotating drive rod 22 will drive the spiral blades 23 and guide rings 24 on the outer wall to rotate synchronously. The rotating spiral blades 23 and guide rings 24 will stir the sludge inside, so that the sludge and chemicals can be in more thorough contact. After stirring is completed, the motor can be turned off to allow the chemicals to react with the sludge. After the sludge separation is completed, the discharge pump 311 can be controlled to work. The working discharge pump 311 will absorb the separated sewage through the suction head 332 at the output end and discharge it to the outside through the discharge pipe 312. During the sewage discharge process, since the suction head 332 is installed on the float plate 33, the float plate 33 will drive the suction head 332 to move synchronously with the change of liquid level through the buoyancy between the float plate 33 and the sewage. This allows the suction head 332 to always maintain a relative distance with the liquid surface, so that the suction head 332 can stably absorb sewage. Furthermore, since the bottom end of the suction head 332 is located inside the suction hole 331 in the float plate 33, it can also avoid the suction head 332 coming into contact with sludge and sucking in too much sludge, which would cause the discharge pump 311 to become blocked. After the wastewater is discharged after separation, the motor that drives the sealing disc 131 can be started. At this time, the motor can drive the sealing disc 131 to rotate, so that the sealing disc 131 unfolds outward at the bottom of the discharge pipe 12 to release the blockage of the discharge pipe 12. Then the transfer trolley can be moved to the bottom of the discharge pipe 12. Then the motor that drives the drive rod 22 can be started. The working motor will drive the spiral blade 23 and the guide ring 24 to rotate again. At this time, the rotating spiral blade 23 will convey the separated sludge outward in a spiral, while the rotating guide ring 24 will stir the sludge, making the sludge more dispersed, thus making the sludge discharge smoother.

[0028] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0029] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drilling waste mud receiving device, comprising a receiving tank (1), wherein the receiving tank (1) is provided with a discharge assembly (2) for discharging separated solid sludge and a discharge assembly (3) for discharging separated wastewater. Its features are: The discharge assembly (2) includes a top frame (21), which is fixedly installed on the top of the receiving tank (1). A drive rod (22) is rotatably connected to the bottom of the top frame (21), and a spiral blade (23) and a guide ring (24) are fixedly connected to the outside of the drive rod (22). The bottom of the receiving tank (1) is provided with a discharge pipe (12) and the spiral blade (23) is located inside the discharge pipe (12).

2. The drilling waste mud receiving device according to claim 1, characterized in that, The drainage assembly (3) includes a mounting plate (31), which is fixedly installed on the top of the top frame (21). Guide rods (32) are slidably connected on both sides of the top of the mounting plate (31), and the bottom ends of the two guide rods (32) are fixedly installed with the same float plate (33).

3. The drilling waste mud receiving device according to claim 2, characterized in that, The float (33) has a suction hole (331) inside, a suction head (332) is fixedly installed inside the suction hole (331), a drain pump (311) is fixedly installed on the mounting plate (31), a connecting hose (34) is fixedly installed between the input end of the drain pump (311) and the suction head (332), and a connecting drain pipe (312) is fixedly installed at the output end of the drain pump (311).

4. The drilling waste mud receiving device according to claim 1, characterized in that, The discharge pipe (12) is fitted with a fixed support frame (13), and a rotatably connected sealing disc (131) is installed on the outer wall of the support frame (13) via a shaft. A motor for controlling the rotation of the sealing disc (131) is also fixedly installed on the support frame (13).

5. The drilling waste mud receiving device according to claim 4, characterized in that, The top of the sealing disc (131) abuts against the bottom of the discharge pipe (12), and the diameter of the sealing disc (131) is larger than the diameter of the discharge pipe (12).

6. The drilling waste mud receiving device according to claim 1, characterized in that, A feed pipe (11) is fixedly installed on the side wall of the receiving tank (1).

7. The drilling waste mud receiving device according to claim 1, characterized in that, The top of the top frame (21) is fixedly equipped with a motor that controls the rotation of the drive rod (22), and the outer wall of the guide ring (24) abuts against and is rotatably connected to the inner wall of the receiving tank (1).

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