Oil sludge sucking, discharging and transferring device and method and oil sludge sucking and discharging vehicle

Abstract

The invention provides an oil sludge sucking, discharging and transferring device and method and an oil sludge sucking and discharging vehicle, and belongs to the technical field of oil field drilling auxiliary equipment.The device comprises a vacuum suction system, a storage tank assembly, a lifting system and a control system.The vacuum suction system is connected with the storage tank assembly through a pipeline; the storage tank assembly is mounted on the lifting system; the storage tank assembly comprises a plurality of tank bodies and liquid level detection units installed in the tank bodies, discharge valves are arranged at the bottoms of the tank bodies, feeding valves are arranged on the upper portions of one side faces of the tank bodies, stop valves are arranged on the other opposite side faces of the tank bodies, the stop valves are connected with pipelines, and unloading valves are arranged at the tops of the tank bodies. The control system is in communication connection with the liquid level detection unit, the feeding valve, the discharging valve, the stop valve and the unloading valve, and the control system is used for adjusting the opening and closing states of the feeding valve, the discharging valve, the stop valve and the unloading valve according to measurement data of the liquid level detection unit. The oil sludge transfer device can effectively improve the oil sludge transfer efficiency and safety.

Description

Technical Field

[0001] This invention belongs to the technical field of oilfield drilling auxiliary equipment, and particularly relates to an oil sludge suction and transfer device, method, and oil sludge suction and transfer vehicle. Background Technology

[0002] Currently, large-scale oil and gas drilling and other extraction operations generate substantial amounts of waste mud, which is temporarily stored in mud pits at construction sites and gradually settles to form oily sludge. Oily sludge is typically mixed with crude oil, sediment, rust, and chemical additives. Its high water content increases its volume and weight, making transportation difficult. Transportation carries the risk of leakage or spillage, leading to environmental pollution. According to environmental regulations, oily sludge must be transported to designated locations for treatment, and the mud must not touch the ground during transport.

[0003] Currently, industrial oil sludge transfer mainly involves manually hoisting it using hoppers or pumping it onto transfer vehicles, which then transport the sludge to designated locations for processing. However, this method suffers from drawbacks such as spillage, inconvenient pump movement, and limited suction capacity. Furthermore, oil sludge is corrosive and releases toxic and harmful gases, seriously endangering the health and safety of workers. Existing technology only allows for manual, intermittent suction and discharge, resulting in low efficiency and high costs. Summary of the Invention

[0004] The purpose of this invention is to provide an oil sludge suction and transfer device, method, and oil sludge suction and transfer vehicle to solve the problems of spillage risk and low transfer efficiency of existing oil sludge transfer devices.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides an oil sludge suction and discharge transfer device, comprising: a vacuum suction system, a storage tank assembly, a lifting system and a control system, wherein the vacuum suction system is connected to the storage tank assembly via a pipeline, and the storage tank assembly is mounted on the lifting system;

[0007] The storage tank assembly includes: several tank bodies and a liquid level detection unit installed inside the tank body. The bottom of the tank body is provided with a discharge port and a discharge valve is installed at the discharge port. The upper side of one side of the tank body is provided with a feed port and a feed valve is installed at the feed port. The opposite side of the tank body is provided with a vacuum suction port and a shut-off valve is installed at the vacuum suction port. The shut-off valve is connected to a pipeline and is used to block the connection between the tank body and the vacuum suction system when discharging. The top of the tank body is provided with a pressure relief port and an unloading valve is installed at the pressure relief port to break the vacuum negative pressure state inside the tank body when discharging.

[0008] The control system is communicatively connected to the liquid level detection unit, the feed valve, the discharge valve, the shut-off valve, and the unloading valve. The control system is used to adjust the opening and closing states of the feed valve, the discharge valve, the shut-off valve, and the unloading valve according to the measurement data of the liquid level detection unit.

[0009] The tank includes a main structure, a top cover, and a discharge section. The main structure is cylindrical. The top cover is located above the main structure and is closed and locked by a top cover locking cylinder and a top cover opening cylinder. The discharge section is located below the main structure and is conical. The discharge valve is located at the top of the discharge section.

[0010] The vacuum suction system includes: a fan, a dust removal unit, an overflow prevention unit, a safety valve, and a silencer unit. The overflow prevention unit and the safety valve are installed at the connection between the fan and the pipeline. The dust removal unit is installed at the air inlet of the fan. The high-speed rotation of the fan creates a vacuum negative pressure inside the tank, drawing the sludge into the tank. The safety valve is used to prevent the fan from being damaged due to excessive vacuum. The silencer unit is installed at the air inlet and outlet of the fan. The overflow prevention unit is used to prevent the sludge inside the tank from overflowing into the vacuum suction system.

[0011] The vacuum suction system is equipped with a power system on one side. The vacuum suction system and the power system are connected by a transmission system. The transmission system can be engaged and disengaged at any time through gas-liquid control.

[0012] The lifting system includes: support legs and a lifting frame and lifting cylinder mounted on the support legs. The support legs provide stable support during the lifting process of the tank. The tank is mounted on the lifting frame, and the lifting cylinder provides power for the deployment and retraction of the lifting frame. The first end of the suction hose is connected to the feed valve. The lifting system is activated to lift the tank to the target height, and the second end of the suction hose extends into the target sludge area. The control system is configured to select the suction / discharge operation mode based on the size of the sludge area and includes: single suction mode or cyclic mode. In single suction mode, the control system automatically controls the feed valve and shut-off valve to open, and the vacuum suction system operates at a preset power. When the amount of sludge in the tank reaches the maximum storage threshold or when all the sludge in the target sludge area is transferred, the control system controls the feed valve to open. With the feed valve and shut-off valve closed, the discharge valve and unloading valve opened to discharge all the sludge in the tank into the transport vehicle, and then the discharge valve and unloading valve closed. In circulation mode, the control system automatically controls the feed valve and shut-off valve to open, and the vacuum suction system operates at a preset power. When the amount of sludge in the tank reaches the maximum storage threshold, the control system closes the feed valve and shut-off valve, opens the discharge valve and unloading valve to discharge all the sludge in the tank into the transport vehicle, and then closes the discharge valve and unloading valve. The control system judges the sludge density state based on the feed rate, and adjusts the power of the vacuum suction system according to the preset target suction rate and the sludge density state obtained in the previous suction and discharge operation as the new preset power. The above suction and discharge operation process is repeated until all the sludge in the target sludge area is transferred.

[0013] The tank is equipped with a stirring unit to prevent sludge from clogging the discharge port during discharge.

[0014] The feed valve is connected to the suction hose, and the other end of the suction hose extends into the target sludge area.

[0015] Secondly, the present invention provides a method for suctioning and transferring oil sludge, based on the above-mentioned oil sludge suction and transfer device, the method comprising the following steps:

[0016] Install the first end of the suction hose onto the feed valve, start the lifting system to lift the tank to the target height, and extend the second end of the suction hose into the target sludge area.

[0017] The suction and discharge operation mode should be selected according to the size of the sludge zone: single suction mode or circulation mode.

[0018] In single suction mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold or when all the sludge in the target sludge area is transferred, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve.

[0019] In the circulation mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve.

[0020] The control system determines the density of the sludge based on the feed rate, and adjusts the power of the vacuum suction system according to the preset target suction rate and the sludge density obtained in the previous suction and discharge operation, which serves as the new preset power.

[0021] Repeat the suction and discharge process described above until all the sludge in the target sludge area has been transferred.

[0022] Thirdly, the present invention provides an oil sludge suction and discharge vehicle, including a vehicle body and the aforementioned oil sludge suction and discharge transfer device installed on the vehicle body.

[0023] Beneficial effects: The sludge suction and transfer device of the present invention can greatly shorten the time of manual control of machine suction cycle during the transfer of sludge, realize automated sludge transfer operation, and significantly reduce labor costs; the dedicated vacuum suction system has strong negative pressure suction capacity and can achieve sludge suction and transfer at a high depth. When used with the storage tank assembly, it can effectively prevent the risk of sludge leakage during the transfer process, improving transfer efficiency while ensuring the safety of personnel and the environment; the sludge suction and transfer vehicle is convenient to move to the work location, bringing great convenience to users and is highly applicable to complex terrain environments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the sludge suction and discharge vehicle of the present invention;

[0025] Figure 2 This is a schematic diagram of the storage tank assembly of the present invention.

[0026] In the diagram, 1-vacuum suction system; 2-storage tank assembly; 3-lifting system; 4-control system; 5-vehicle body; 6-transport vehicle; 7-pipeline; 8-suction hose; 9-power system; 21-discharge valve; 22-liquid level detection unit; 23-unloading valve; 24-feed valve; 25-feed inlet; 26-stirring unit; 27-discharge port; 28-stop valve; 29-tank body. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0028] refer to Figure 1 and Figure 2 As shown, at least some embodiments provide an oil sludge suction and discharge transfer device, including: a vacuum suction system 1, a storage tank assembly 2, a lifting system 3, and a control system 4; the vacuum suction system 1 is connected to the storage tank assembly 2 via a pipeline 7 to form a vacuum negative pressure state inside the tank body 29; the storage tank assembly 2 is installed on the lifting system 3; the lifting system 3 can adjust the height and position of the storage tank assembly 2 according to the size and position of the transport vehicle 6 to ensure that the discharge port of the storage tank assembly 2 is directly facing the transport vehicle 6, thus preventing oil sludge from spilling.

[0029] In some embodiments, the storage tank assembly 2 includes: a plurality of tank bodies 29 and a liquid level detection unit 22 installed inside the tank body 29. The bottom of the tank body 29 is provided with a discharge port 27, and a discharge valve 21 is installed at the discharge port 27. The upper part of one side of the tank body 29 is provided with a feed port 25, and a feed valve 24 is installed at the feed port 25. The other side opposite to the feed port 25 is provided with a vacuum suction port, and a shut-off valve 28 is installed at the vacuum suction port. The shut-off valve 28 is connected to the pipeline 7. The shut-off valve 28 is used to block the connection between the tank body 29 and the vacuum suction system 1 when the discharge state is in operation, so as to prevent the tank body 29 from being in a continuous vacuum negative pressure state and to allow the sludge to be discharged smoothly. The top of the tank body 29 is provided with a pressure relief port, and an unloading valve 23 is installed at the pressure relief port to break the vacuum negative pressure state inside the tank body 29 when the discharge state is in operation, so as to ensure that the sludge can be discharged smoothly from the discharge port 27.

[0030] The control system 4 is communicatively connected to the liquid level detection unit 22, the feed valve 24, the discharge valve 21, the shut-off valve 28, and the unloading valve 23. The control system 4 adjusts the opening and closing states of the feed valve 24, the discharge valve 21, the shut-off valve 28, and the unloading valve 23 according to the measurement data of the liquid level detection unit 22.

[0031] For details on the specific working process of the control system, please refer to the configuration limitations of the control system in the subsequent embodiment of the sludge suction and discharge transfer method.

[0032] In some embodiments, the vacuum suction system 1 includes: a fan, a dust removal unit, an overflow prevention unit, a safety valve, and a silencer unit. The overflow prevention unit and the safety valve are installed at the connection between the fan and the pipeline 7. The dust removal unit is installed at the air inlet of the fan. The safety valve is used to prevent the fan from being damaged due to excessive vacuum. The overflow prevention unit is used to prevent sludge in the tank 29 from overflowing into the vacuum system and entering the fan. The dust removal unit is used to filter impurities in the tank 29 and the external environment to protect the performance of the fan. The high-speed rotation of the fan creates a vacuum negative pressure state inside the tank 29, which creates a high-speed airflow at the feed inlet 25, sucking the sludge into the tank 29. The silencer unit is installed at the air inlet and exhaust outlet of the fan to effectively reduce operating noise. In this embodiment, a Roots blower is used, which has a large air volume, high negative pressure, and strong suction capacity.

[0033] The lifting system 3 includes: support legs and a lifting frame and lifting cylinder mounted on the support legs. The support legs are used to provide stable support during the lifting process of the tank 29. The tank 29 is mounted on the lifting frame. The lifting cylinder provides power for the extension and retraction of the lifting frame to ensure that the tank 29 is lifted to the target position.

[0034] Considering that the tank 29 needs to be used under negative pressure, a high-strength structure is required. The tank 29 includes: a main structure, a top cover, and a discharge section. The main structure is a cylindrical structure. The top cover is located above the main structure and is closed and locked by a top cover locking cylinder and a top cover opening cylinder. The discharge section is located below the main structure and is a conical structure. The discharge valve is located at the top of the discharge section.

[0035] In some embodiments, the main structure of the tank 29 is a smooth cylindrical structure with strong pressure bearing capacity. It is made of high-strength steel plate, which is rust-proof and corrosion-resistant. The top cover of the tank 29 adopts a circumferential hydraulic locking device. The top cover locking cylinder and the top cover opening cylinder are used to ensure the sealing, facilitate opening and cleaning, improve service life, and ensure the vacuum degree inside the tank 29 when the vacuum suction system 1 is working. The discharge part of the tank 29 is a conical structure, which facilitates the smooth discharge of oil sludge.

[0036] The tank body 29 is equipped with a stirring unit 26 to prevent sludge from clogging the discharge port during discharge.

[0037] A power system 9 is provided on one side of the vacuum suction system 1. The vacuum suction system 1 and the power system 9 are connected by a transmission system. The power of the power system 9 is transmitted to the fan through the transmission system. The transmission system achieves the engagement and disengagement of the power at any time through gas-liquid control. When a large torque is transmitted, the transmission system will slip to protect the power system 9.

[0038] refer to Figure 1 As shown, at least some embodiments also include an oil sludge suction and discharge vehicle, including a vehicle body 5 and the aforementioned oil sludge suction and discharge transfer device mounted on the vehicle body 5.

[0039] The vehicle body 5 is also equipped with a reel system, which enables the rapid retrieval of the suction hose 8. It is used to quickly and automatically reel in the suction hose 8 after the operation is completed. It is compatible with suction hoses of two sizes, DN150 and DN100. It is easy to use, reliable in performance, and indirectly improves the transfer efficiency.

[0040] Some embodiments also provide a method for suction, discharge, and transfer of oil sludge, including the following steps:

[0041] Install the first end of the suction hose 8 onto the feed valve 24, start the lifting system 3 to lift the tank 29 to the target height, and extend the second end of the suction hose 8 into the target sludge area.

[0042] The suction and discharge operation mode should be selected according to the size of the sludge zone: single suction mode or circulation mode.

[0043] In single suction mode, the control system 4 automatically controls the feed valve 24 and the shut-off valve 28 to open, and the vacuum suction system 1 operates according to the preset power. When the amount of sludge in the tank 29 reaches the maximum storage threshold or when all the sludge in the target sludge area is transferred, the control system closes the feed valve 24 and the shut-off valve 28, opens the discharge valve 21 and the unloading valve 23, discharges all the sludge in the tank 29 into the transport vehicle, and closes the discharge valve 21 and the unloading valve 23.

[0044] In the circulation mode, the control system 4 automatically controls the feed valve 24 and the shut-off valve 28 to open, and the vacuum suction system 1 works according to the preset power. When the amount of sludge in the tank 29 reaches the maximum storage threshold, the control system 4 controls the feed valve 24 and the shut-off valve 28 to close, opens the discharge valve 21 and the unloading valve 23, discharges all the sludge in the tank 29 into the transport vehicle, and closes the discharge valve 21 and the unloading valve 23.

[0045] The control system 4 determines the sludge density state based on the feed rate, and adjusts the power of the vacuum suction system 1 according to the preset target suction rate and the sludge density state obtained in the previous suction and discharge operation, as the new preset power.

[0046] Repeat the suction and discharge operation as described above until all the sludge in the target sludge area has been transferred.

[0047] In one possible implementation, the feed valve 24 and the discharge valve 21 can be manually controlled to open and close as needed to ensure production safety.

[0048] Multiple tanks 29 can perform suction and discharge operations simultaneously, or they can be matched together to perform suction or discharge operations.

[0049] In summary, the sludge suction and transfer device of the present invention can greatly shorten the time of manual control of machine suction and circulation during the transfer of sludge, realize automated sludge transfer operations, and significantly reduce labor costs; the dedicated vacuum suction system has strong negative pressure suction capacity, which can achieve sludge suction and transfer at a high depth, and when used with the storage tank assembly, it can effectively prevent the risk of sludge leakage during the transfer process, improving transfer efficiency while ensuring the safety of personnel and the environment; the sludge suction and transfer vehicle is convenient to move to the work location, bringing great convenience to users, and is highly applicable to complex terrain environments.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A sludge suction and transfer device, characterized in that, include: The system includes a vacuum suction system, a storage tank assembly, a lifting system, and a control system. The vacuum suction system is connected to the storage tank assembly via pipelines, and the storage tank assembly is mounted on the lifting system. The storage tank assembly includes: several tank bodies and a liquid level detection unit installed inside the tank body. The bottom of the tank body is provided with a discharge port and a discharge valve is installed at the discharge port. The upper side of one side of the tank body is provided with a feed port and a feed valve is installed at the feed port. The opposite side of the tank body is provided with a vacuum suction port and a shut-off valve is installed at the vacuum suction port. The shut-off valve is connected to a pipeline and is used to block the connection between the tank body and the vacuum suction system when discharging. The top of the tank body is provided with a pressure relief port and an unloading valve is installed at the pressure relief port to break the vacuum negative pressure state inside the tank body when discharging. The control system is communicatively connected to the liquid level detection unit, the feed valve, the discharge valve, the shut-off valve, and the unloading valve. The control system is used to adjust the opening and closing states of the feed valve, the discharge valve, the shut-off valve, and the unloading valve according to the measurement data of the liquid level detection unit.

2. The sludge suction and transfer device according to claim 1, characterized in that, The tank includes a main structure, a top cover, and a discharge section. The main structure is cylindrical. The top cover is located above the main structure and is closed and locked by a top cover locking cylinder and a top cover opening cylinder. The discharge section is located below the main structure and is conical. The discharge valve is located at the top of the discharge section.

3. The sludge suction and transfer device according to claim 1, characterized in that, The vacuum suction system includes: a fan, a dust removal unit, an overflow prevention unit, a safety valve, and a silencer unit. The overflow prevention unit and the safety valve are installed at the connection between the fan and the pipeline. The dust removal unit is installed at the air inlet of the fan. The high-speed rotation of the fan creates a vacuum negative pressure inside the tank, drawing the sludge into the tank. The safety valve is used to prevent the fan from being damaged due to excessive vacuum. The silencer unit is installed at the air inlet and outlet of the fan. The overflow prevention unit is used to prevent the sludge inside the tank from overflowing into the vacuum suction system.

4. The sludge suction and transfer device according to claim 1, characterized in that, The vacuum suction system is equipped with a power system on one side. The vacuum suction system and the power system are connected by a transmission system. The transmission system can be engaged and disengaged at any time through gas-liquid control.

5. The sludge suction and transfer device according to claim 1, characterized in that, The lifting system includes: support legs, a lifting frame mounted on the support legs, and lifting cylinders. The support legs provide stable support during the lifting process of the tank. The tank is mounted on the lifting frame, and the lifting cylinders provide power for the deployment and retraction of the lifting frame. Install the first end of the suction hose onto the feed valve, start the lifting system to lift the tank to the target height, and extend the second end of the suction hose into the target sludge area. The control system is configured to select the suction and discharge operation mode according to the size of the sludge zone and includes: single suction mode or circulation mode; In single suction mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold or when all the sludge in the target sludge area is transferred, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve. In the circulation mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve. The control system determines the density of the sludge based on the feed rate, and adjusts the power of the vacuum suction system according to the preset target suction rate and the sludge density obtained in the previous suction and discharge operation, which serves as the new preset power. Repeat the suction and discharge process described above until all the sludge in the target sludge area has been transferred.

6. The sludge suction and transfer device according to claim 1, characterized in that, The tank is equipped with a stirring unit to prevent sludge from clogging the discharge port during discharge.

7. The sludge suction and transfer device according to claim 1, characterized in that, The feed valve is connected to the suction hose, and the other end of the suction hose extends into the target sludge area.

8. A method for suction, discharge, and transfer of oily sludge, characterized in that, Based on the sludge suction and transfer device according to any one of claims 1-7, the method includes the following steps: Install the first end of the suction hose onto the feed valve, start the lifting system to lift the tank to the target height, and extend the second end of the suction hose into the target sludge area. The suction and discharge operation mode should be selected according to the size of the sludge zone: single suction mode or circulation mode. In single suction mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold or when all the sludge in the target sludge area is transferred, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve. In the circulation mode, the control system automatically controls the opening of the feed valve and the shut-off valve, and the vacuum suction system works according to the preset power. When the amount of sludge in the tank reaches the maximum storage threshold, the control system closes the feed valve and the shut-off valve, opens the discharge valve and the unloading valve, discharges all the sludge in the tank into the transport vehicle, and closes the discharge valve and the unloading valve. The control system determines the density of the sludge based on the feed rate, and adjusts the power of the vacuum suction system according to the preset target suction rate and the sludge density obtained in the previous suction and discharge operation, which serves as the new preset power. Repeat the suction and discharge process described above until all the sludge in the target sludge area has been transferred.

9. A sludge suction and discharge vehicle, characterized in that, Includes a vehicle body and an oil sludge suction and transfer device as described in any one of claims 1-7, mounted on the vehicle body.

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