Mud tank and mud discharge port of mud tank

By controlling the opening and closing of the mud trough discharge gate through a gear winch and wire rope system, the problem of sand accumulation in existing technologies has been solved, achieving convenient operation and efficient work.

CN223510880UActive Publication Date: 2025-11-04SINOPEC OILFIELD SERVICE CORPORATION +2
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Patent Information

Application Number
CN202423160304.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-04
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

The existing mud tank discharge outlet structure causes sand accumulation, increasing operational difficulty and delaying the operation cycle.

Method used

A rotating gear winch is used to control the opening and closing of the slurry discharge gate by winding and unwinding the wire rope. Combined with a tension compensator to compensate for the deviation in the length of the wire rope, the opening and closing of the slurry discharge gate can be adjusted, reducing sand accumulation.

Benefits of technology

It simplifies operation, improves work efficiency, reduces sand accumulation in mud tanks, and ensures the guiding and throttling effect of mud.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of well drilling, and discloses a slurry tank and a slurry discharge port of the slurry tank, and the slurry discharge port of the slurry tank comprises a slurry discharge door hinged to the lower part of a side tank plate of the slurry tank; one end of the outer steel wire rope is connected with the outer side surface of the slurry discharging door, and the other end of the outer steel wire rope is connected with the first gear winch so as to control outward opening of the slurry discharging door by tightening the outer steel wire rope; one end of the inner-side steel wire rope is connected with the inner side surface of the slurry discharging door, and the other end of the inner-side steel wire rope is connected with the second gear winch so as to control inward retraction of the slurry discharging door by tightening the inner-side steel wire rope; the stretching compensator is arranged between the first gear winch and / or the second gear winch and the slurry discharging door so as to compensate the length deviation caused by desynchrony of the inner side steel wire rope and the outer side steel wire rope in the stretching process. The gear winch is rotated to drive the steel wire rope to be wound and unwound so as to control winding and unwinding of the slurry discharging door, the structure is simple, adjustment is convenient, the opening and closing angle of the slurry discharging door can be adjusted, guiding throttling of slurry is facilitated, and the problem of sand accumulation of the slurry tank is solved.
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Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and more specifically, to a mud tank discharge port. Furthermore, this utility model also provides a mud tank including the aforementioned mud tank discharge port. Background Technology

[0002] In the operation of drilling mud solids control system, mud tanks are used to guide and divert mud. The mud tanks need to have a certain length and slope, and the mud tanks are equipped with discharge ports so that the mud can flow into different functional compartments for staged treatment according to the treatment needs.

[0003] Existing mud tanks typically employ a single-plate structure, meaning the mud tank is a single steel plate or a combination of steel plates with vulcanized rubber. The discharge port is also a steel plate with a groove. This structure is difficult to install and remove, and if sand accumulates in the mud tank, mud leakage is likely to occur, which not only increases the difficulty of operation but also delays the work cycle.

[0004] In conclusion, how to reduce sand accumulation in mud tanks is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a slurry discharge port for a mud tank, which can be controlled by rotating a gear winch to drive the wire rope to open and close. The structure is simple and easy to adjust, and the opening and closing angle of the discharge port can be adjusted, which is beneficial to the guidance and throttling of mud and reduces the problem of sand accumulation in the mud tank.

[0006] In addition, this utility model also provides a mud tank including the above-mentioned mud tank discharge port.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A mud slurry discharge port includes:

[0009] A slurry discharge gate for sealing the slurry discharge port of a mud tank, which is hinged to the lower part of the side trough plate of the mud tank;

[0010] An outer steel wire rope, one end of which is connected to the outer side of the slurry gate, and the other end of which is connected to the first gear winch, so as to control the outward opening of the slurry gate by tightening the outer steel wire rope;

[0011] The inner steel wire rope has one end connected to the inner side of the slurry gate and the other end connected to the second gear winch, so as to control the inward retraction of the slurry gate by tightening the inner steel wire rope.

[0012] A tension compensator is provided between the first gear winch and / or the second gear winch and the discharge gate to compensate for the length deviation caused by the asynchronous tensioning of the inner and outer wire ropes.

[0013] Preferably, the first gear winch and the second gear winch are integrated within a gear winch, and the gear winch is spanned between the side trough plates on opposite sides of the mud trough via a gear winch bracket;

[0014] The upper part of the side channel plate where the slurry discharge gate is installed is provided with an outer guide pulley, and the outer steel wire rope is wound around the outer guide pulley and connected to the outer side of the slurry discharge gate. The upper and lower parts of the side channel plate where the slurry discharge gate is not installed are provided with inner guide pulleys, and the inner steel wire rope is wound around the two inner guide pulleys and connected to the inner side of the slurry discharge gate.

[0015] Preferably, the outer guide pulley is disposed inside the horizontal guide pipe, the horizontal guide pipe passes through the side groove plate of the slurry discharge gate, and the outer guide pulley is disposed at the end of the horizontal guide pipe that is relatively far away from the mud trough;

[0016] The inner guide pulleys are all located inside the vertical guide tube, which is arranged along the depth direction of the mud tank.

[0017] Preferably, at least one end of the horizontal conduit and the vertical conduit is provided with a detachable dustproof plug, the size of which is larger than the size of the outer guide pulley or the size of the inner guide pulley.

[0018] Preferably, both the sidewall of the horizontal conduit and the sidewall of the vertical conduit are provided with pulley openings, and the pulley openings are provided in a one-to-one correspondence with the outer guide pulley or the inner guide pulley.

[0019] Preferably, a slurry outlet bottom plate is provided outside the slurry outlet, the slurry outlet gate is hinged to the slurry outlet bottom plate, the area of ​​the slurry outlet gate is larger than the area of ​​the slurry outlet bottom plate, and a sealing step is provided on the inner side of the slurry outlet gate for abutting against the inner edge of the slurry outlet bottom plate.

[0020] Preferably, the top of the slurry outlet bottom plate is provided with a fixed ear plate, and the top of the slurry outlet gate is provided with a connecting ear plate. The fixed ear plate and the connecting ear plate are rotatably connected by a pin.

[0021] Preferably, the sealing step is provided with a sealing strip on the outer end face of the bottom plate of the slurry outlet, which is close to the sealing step. The sealing strip is used to seal the gap between the sealing step and the bottom plate of the slurry outlet to prevent slurry leakage when the slurry outlet door is closed.

[0022] Preferably, the tension compensator is disposed on the outer steel wire rope, and the tension compensator includes a tension spring and connecting lugs disposed at both ends of the tension spring, and the outer steel wire rope is connected to the connecting lugs.

[0023] A mud tank, comprising the mud tank discharge port as described in any of the preceding claims.

[0024] The mud trough discharge port provided by this utility model can be controlled by rotating the first gear winch to tighten the outer steel wire rope, causing the discharge gate to open outward, and by rotating the second gear winch to tighten the inner steel wire rope, causing the discharge gate to close inward. Therefore, the opening and closing of the discharge gate can be controlled by rotating the gear winch to tighten and loosen the steel wire rope. Furthermore, the opening and closing angle of the discharge gate is adjustable, which is beneficial for guiding and throttling the mud, reducing the problem of sand accumulation in the mud trough. In addition, the above-mentioned mud trough discharge port has a simple structure and is easy to operate, effectively saving operation time and improving operation efficiency.

[0025] In addition, this utility model also provides a mud tank including the above-mentioned mud tank discharge port. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the mud tank discharge port of this utility model in the closed state, according to a specific embodiment.

[0028] Figure 2 This is a schematic diagram of the structure of the mud slurry discharge port in the closed state in another direction;

[0029] Figure 3 A schematic diagram of the mud slurry tank discharge port in the open state;

[0030] Figure 4 This is a schematic diagram of the structure of the slurry outlet bottom plate;

[0031] Figure 5 This is a schematic diagram of the slurry discharge gate.

[0032] Figure 6 This is a schematic diagram of the slurry discharge gate in another direction;

[0033] Figure 7 This is a schematic diagram of the gear winch support structure;

[0034] Figure 8 This is a schematic diagram of the structure of a horizontal catheter;

[0035] Figure 9 This is a schematic diagram of a vertical conduit.

[0036] Figure 10 This is a schematic diagram of a tension compensator.

[0037] Figures 1-10 middle:

[0038] 01-Mud trough; 1-Discharge port bottom plate; 101-Fixed ear plate; 2-Discharge gate; 201-Connecting ear plate; 202-Outer steel wire rope connecting ear plate; 203-Inner steel wire rope connecting ear plate; 3-Gear winch bracket; 4-Gear winch; 51-Horizontal guide pipe; 52-Vertical guide pipe; 501-Rubber dustproof plug; 502-Pulley opening; 503-Steel dustproof plug; 6-Outer steel wire rope; 7-Inner steel wire rope; 8-Tension compensator; 801-Tension spring; 802-Connecting ear ring. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] The core of this utility model is to provide a slurry discharge port for a mud tank. The opening and closing of the discharge gate can be controlled by rotating a gear winch to drive the wire rope. The structure is simple and easy to adjust. The opening and closing angle of the discharge gate is adjustable, which is beneficial for guiding and throttling the mud and reducing the problem of sand accumulation in the mud tank.

[0041] In addition, this utility model also provides a mud tank including the above-mentioned mud tank discharge port.

[0042] The mud slurry discharge port provided by this utility model includes:

[0043] The discharge gate 2, used to seal the discharge port of the mud tank 01, is hinged to the lower part of the side trough plate of the mud tank 01.

[0044] The outer steel wire rope 6 has one end connected to the outer side of the slurry gate 2 and the other end connected to the first gear winch so as to control the outward opening of the slurry gate 2 by tightening the outer steel wire rope 6;

[0045] The inner steel wire rope 7 has one end connected to the inner side of the discharge gate 2 and the other end connected to the second gear winch so as to control the inward retraction of the discharge gate 2 by tightening the inner steel wire rope 7.

[0046] The tension compensator 8 is located between the first gear winch or the second gear winch and the discharge gate 2 to compensate for the length deviation caused by the asynchronous tensioning of the inner and outer wire ropes.

[0047] Please refer to Figure 1 The discharge gate 2 is located at the lower part of the side trough plate of the mud tank 01. The shape and size of the discharge gate 2 are determined according to the shape and size of the discharge port. Usually, the size of the discharge gate 2 is set slightly larger than the size of the discharge port so that the discharge gate 2 can effectively seal the discharge port and prevent mud leakage when the discharge gate 2 is closed.

[0048] The flow area of ​​the discharge port determines the flow rate of the mud. The opening and closing angle of the discharge gate 2 relative to the discharge port can affect the flow area of ​​the discharge channel formed by the discharge port and the discharge gate 2, and thus affect the flow rate of the mud.

[0049] The outer side of the slurry gate 2 is connected to the outer steel wire rope 6, and the inner side of the slurry gate 2 is connected to the inner steel wire rope 7. In order to facilitate the fixing of the inner and outer steel wire ropes, the inner and outer sides of the slurry gate 2 are respectively provided with inner steel wire rope connecting ear plate 203 and outer steel wire rope connecting ear plate 202. The inner and outer connecting ear plates can also be replaced with connecting ear rings or other structures with similar functions.

[0050] The outer steel wire rope 6 is wound around the first gear winch, which can be located inside the mud tank 01 or outside the side trough plate of the mud tank 01 where the discharge gate 2 is located; the inner steel wire rope 7 is wound around the second gear winch, which is located inside the mud tank 01.

[0051] Control the first gear winch and the second gear winch to rotate simultaneously, so that the outer wire rope 6 is tightened and the inner wire rope 7 is relaxed. The outer wire rope 6 pulls the discharge gate 2 outward, and the discharge gate 2 opens outward.

[0052] Conversely, controlling the first gear winch and the second gear winch to rotate in opposite directions simultaneously causes the outer wire rope 6 to loosen while the inner wire rope 7 tightens. The inner wire rope 7 pulls the discharge gate 2 inward, causing the discharge gate 2 to close inward.

[0053] Because the inner and outer wire ropes are not synchronized during the opening and closing of the slurry gate 2, the length change of the outer wire rope 6 is not the same as that of the inner wire rope 7. Therefore, a tension compensator 8 is required to compensate for the above-mentioned length deviation. The tension compensator 8 can be specifically set as a tension spring 801, elastic rope, or other elastic element with good tensile properties.

[0054] Considering that the elastic rope can only withstand tension, while the tension spring 801 can withstand compression, it is preferable to set the tension compensator 8 as the tension spring 801. The tension spring 801 is connected to the outer wire rope 6 or the inner wire rope 7 through the connecting lugs 802 at both ends. In addition, considering that the mud environment will reduce the life of the tension compensator 8, the tension compensator 8 is usually set on the outer wire rope 6.

[0055] In this embodiment, the opening and closing of the discharge gate 2 can be controlled by rotating the first gear winch and the second gear winch to drive the wire rope to open and close. The opening and closing angle of the discharge gate 2 is adjustable, which is beneficial for guiding and throttling the mud and reducing the problem of sand accumulation in the mud tank 01. Furthermore, the above-mentioned mud tank discharge port structure is convenient and easy to operate, effectively saving operation time and improving operation efficiency.

[0056] Considering that it is relatively difficult to operate two gear winches at the same time, in order to simplify the opening and closing operation of the discharge gate 2, based on the above embodiment, the first gear winch and the second gear winch can be integrated into the gear winch 4. The gear winch 4 is straddling the two opposite side trough plates of the mud trough 01 through the gear winch bracket 3.

[0057] The upper part of the side channel plate with slurry gate 2 is provided with an outer guide pulley, and the outer steel wire rope 6 is wound around the outer guide pulley and connected to the outer side of slurry gate 2. The upper and lower parts of the side channel plate without slurry gate 2 are provided with inner guide pulleys, and the inner steel wire rope 7 is wound around the two inner guide pulleys and connected to the inner side of slurry gate 2.

[0058] Please refer to Figure 1-3 A gear winch bracket 3 is provided between the two side plates of the mud tank 01. The gear winch bracket 3 is set perpendicular to the side plates of the mud tank 01. In order to ensure the connection strength, the gear winch bracket 3 is usually welded between the two side plates. The gear winch 4 is preferably connected to the gear winch bracket 3 by fasteners such as fastening bolts and connecting pins, so as to facilitate the subsequent maintenance and replacement of the gear winch 4.

[0059] The gear winch 4 has a first gear winch and a second gear winch arranged side by side. The outer steel wire rope 6 is wound around the first gear winch, and the inner steel wire rope 7 is wound around the second gear winch. The inner and outer steel wire ropes do not contact each other to avoid motion interference. When the gear winch 4 is rotated, the first gear winch and the second gear winch rotate synchronously in opposite directions, so that one of the inner and outer steel wire ropes is tightened while the other is relaxed.

[0060] To facilitate the wiring of the inner and outer wire ropes and reduce wear between the wire ropes and the side channel plate, an outer guide pulley is provided on the upper outer side of the side channel plate where the slurry gate 2 is installed. The outer wire rope 6 is wound around the outer guide pulley and connected to the outer side of the slurry gate 2. Meanwhile, the upper and lower inner sides of the side channel plate where the slurry gate 2 is not installed are provided with inner guide pulleys. The inner wire rope 7 is wound around the upper and lower inner guide pulleys and connected to the inner side of the slurry gate 2.

[0061] The inner and outer guide pulleys are used to guide the inner and outer wire ropes to turn, respectively, to avoid the wire ropes from directly contacting the side groove plate and causing wear. The inner and outer guide pulleys are preferably designed to have the same structure, shape and size to reduce the types of parts, improve the interchangeability of parts and facilitate subsequent maintenance.

[0062] In this embodiment, the first gear winch and the second gear winch are integrated into the gear winch 4, which reduces the number of installation positions of the gear winch, simplifies the layout of the wire rope in the mud slurry discharge port, and enables simultaneous control of the tightening and loosening of the inner and outer wire ropes, making operation convenient.

[0063] Based on the above embodiments, considering that the guide pulley is immersed in the mud environment and is prone to clogging and corrosion, the outer guide pulley can be set in the horizontal guide tube 51. The horizontal guide tube 51 is provided with the side groove plate of the slurry discharge gate 2, and the outer guide pulley is set at the end of the horizontal guide tube 51 that is relatively far away from the mud tank 01. The inner guide pulleys are all set in the vertical guide tube 52, which is set along the depth direction of the mud tank 01.

[0064] Both the horizontal conduit 51 and the vertical conduit 52 are made of corrosion-resistant materials such as steel plates. In order to reduce the entry of mud into the horizontal conduit 51 and the vertical conduit 52, dustproof plugs are provided at both ends of the horizontal conduit 51 and the vertical conduit 52. The dustproof plugs are also made of corrosion-resistant materials such as steel plates and rubber plates.

[0065] To facilitate subsequent maintenance and replacement of the guide pulleys, it is preferable to provide a dustproof plug at at least one end of both the horizontal guide tube 51 and the vertical guide tube 52. The size of the dustproof plug is larger than the size of the outer guide pulley or the inner guide pulley, so as to facilitate the disassembly and assembly of the guide pulleys.

[0066] Please refer to Figure 8 and Figure 9 Both the horizontal conduit 51 and the vertical conduit 52 have a steel dustproof plug 503 at one end, which is welded to the conduit body, and a rubber dustproof plug 501 at the other end, which is snapped to the conduit body.

[0067] In this embodiment, the horizontal conduit 51 can effectively separate the outer guide pulley from the mud environment, and the vertical conduit 52 can effectively separate the inner guide pulley from the mud environment, avoiding mud blockage and corrosion of the inner and outer guide pulleys, which helps to extend the service life of the inner and outer guide pulleys.

[0068] For the routing of the inner and outer wire ropes, preferably, both the horizontal conduit 51 and the vertical conduit 52 are provided with pulley openings 502 on their side walls. The pulley openings 502 are provided one-to-one with the outer guide pulley or the inner guide pulley. The shape of the pulley openings 502 is not limited, but the size of the pulley openings 502 should not be too large, so as to meet the requirements of the wire rope routing.

[0069] Based on the above embodiments, a slurry outlet bottom plate 1 can be provided outside the slurry outlet, and a slurry outlet gate 2 can be hinged to the slurry outlet bottom plate 1. The area of ​​the slurry outlet gate 2 is larger than the area of ​​the slurry outlet bottom plate 1, and a sealing step is provided on the inner side of the slurry outlet gate 2 for abutting against the inner edge of the slurry outlet bottom plate 1.

[0070] The discharge port bottom plate 1 can be connected to the side plate of the mud tank 01 by fasteners such as bolts and connecting pins. In order to reduce gaps and improve sealing performance, it is preferable to weld the discharge port bottom plate 1 to the outside of the side plate of the mud tank 01.

[0071] The shape and size of the bottom plate 1 of the slurry outlet are adapted to the shape and size of the sealing step inside the slurry outlet 2 so that the sealing step of the slurry outlet 2 can abut against the bottom plate 1 of the slurry outlet to form a sealing structure.

[0072] The discharge gate 2 is hinged to the discharge port bottom plate 1. This connection can be achieved by hinges or by a fixed ear plate 101 on the top of the discharge port bottom plate 1 and a connecting ear plate 201 on the top of the discharge gate 2. The fixed ear plate 101 and the connecting ear plate 201 are rotatably connected by a pin.

[0073] In this embodiment, a discharge port bottom plate 1 is provided at the discharge port of the mud tank 01, and a sealing step is provided on the inner side of the discharge gate 2 for contacting the discharge port bottom plate 1. Compared with the discharge gate 2 directly sealing the discharge port, the surface contact between the sealing step and the discharge port bottom plate 1 increases the contact area between the two, thereby improving the sealing performance between them.

[0074] To further enhance the sealing performance of the slurry discharge gate 2, preferably, a sealing strip is provided on the outer end face of the sealing step that is relatively close to the bottom plate 1 of the slurry discharge port. The sealing strip is used to seal the gap between the sealing step and the bottom plate 1 of the slurry discharge port to prevent slurry leakage when the slurry discharge gate 2 is closed.

[0075] In addition to the mud tank discharge port mentioned above, this utility model also provides a mud tank 01 including the mud tank discharge port disclosed in the above embodiments. For the structure of other parts of the mud tank 01, please refer to the prior art, which will not be repeated here.

[0076] It should be noted that the "first" and "second" in the first gear winch and the second gear winch mentioned in this application are only used to distinguish the different positions and do not contain any limitation on the order.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0078] The mud tank and mud tank discharge port provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A mud slurry discharge port, characterized in that, include: A slurry gate (2) for sealing the slurry outlet of the slurry tank (01) is hinged to the lower part of the side trough plate of the slurry tank (01); An outer steel wire rope (6) is connected at one end to the outer side of the discharge gate (2) and at the other end to the first gear winch, so as to control the outward opening of the discharge gate (2) by tightening the outer steel wire rope (6); The inner wire rope (7) has one end connected to the inner side of the discharge gate (2) and the other end connected to the second gear winch so as to control the inward retraction of the discharge gate (2) by tightening the inner wire rope (7); A tension compensator (8) is provided between the first gear winch and / or the second gear winch and the discharge gate (2) to compensate for the length deviation caused by the asynchronous tensioning of the inner and outer wire ropes.

2. The mud slurry discharge port according to claim 1, characterized in that, The first gear winch and the second gear winch are integrated in the gear winch (4), and the gear winch (4) is spanned between the side trough plates on opposite sides of the mud trough (01) by the gear winch bracket (3); The upper part of the side channel plate of the slurry gate (2) is provided with an outer guide pulley. The outer steel wire rope (6) is wrapped around the outer guide pulley and connected to the outer side of the slurry gate (2). The upper and lower parts of the side channel plate without the slurry gate (2) are provided with inner guide pulleys. The inner steel wire rope (7) is wrapped around the two inner guide pulleys and connected to the inner side of the slurry gate (2).

3. The mud slurry discharge port according to claim 2, characterized in that, The outer guide pulley is located inside the horizontal guide tube (51), the horizontal guide tube (51) is provided through the side groove plate of the slurry discharge gate (2), and the outer guide pulley is located at the end of the horizontal guide tube (51) that is relatively far away from the mud tank (01). The inner guide pulleys are all located inside the vertical guide tube (52), which is arranged along the depth direction of the mud tank (01).

4. The mud slurry discharge port according to claim 3, characterized in that, At least one end of the horizontal conduit (51) and the vertical conduit (52) is provided with a removable dustproof plug, the size of which is larger than the size of the outer guide pulley or the size of the inner guide pulley.

5. The mud slurry discharge port according to claim 3, characterized in that, The side wall of the horizontal conduit (51) and the side wall of the vertical conduit (52) are provided with pulley openings (502), and the pulley openings (502) are provided in a one-to-one correspondence with the outer guide pulley or the inner guide pulley.

6. The mud slurry discharge port according to any one of claims 1-5, characterized in that, The discharge port is provided with a discharge port bottom plate (1), and the discharge gate (2) is hinged to the discharge port bottom plate (1). The area of ​​the discharge gate (2) is larger than the area of ​​the discharge port bottom plate (1). The inner side of the discharge gate (2) is provided with a sealing step for abutting against the inner edge of the discharge port bottom plate (1).

7. The mud slurry discharge port according to claim 6, characterized in that, The top of the slurry outlet bottom plate (1) is provided with a fixed ear plate (101), and the top of the slurry outlet gate (2) is provided with a connecting ear plate (201). The fixed ear plate (101) and the connecting ear plate (201) are rotatably connected by a pin.

8. The mud slurry discharge port according to claim 7, characterized in that, The sealing step is provided with a sealing strip on the outer end face of the bottom plate (1) of the slurry outlet. The sealing strip is used to seal the gap between the sealing step and the bottom plate (1) of the slurry outlet to prevent slurry leakage when the slurry outlet gate (2) is closed.

9. The mud slurry discharge port according to any one of claims 1-5, characterized in that, The tension compensator (8) is disposed on the outer steel wire rope (6). The tension compensator (8) includes a tension spring (801) and connecting lugs (802) disposed at both ends of the tension spring (801). The outer steel wire rope (6) is connected to the connecting lugs (802).

10. A mud tank, characterized in that, Includes the mud slurry discharge port as described in any one of claims 1-9.