An automatic integrated device for treating oily sludge, a control system and a treatment method

Abstract

The application discloses a kind of full-automatic oily sludge integrated processing device, control system and processing method, comprising: tank;First baffle, be in the tank and be separated into mixing chamber and oil sludge chamber;Second baffle, be in the oil sludge chamber and be separated into mud discharge chamber and overflow chamber;Mud discharge port, between the mixing chamber and the mud discharge chamber, and the mud discharge port is equipped with mud discharge baffle;Overflow port, between the mixing chamber and the overflow chamber, and the overflow port is equipped with adjustable overflow baffle;Discharge port, be equipped with discharge connection pipe in the bottom end of the mud discharge chamber;Connection tee, its first end is communicated with the discharge connection pipe, its second end is connected with external discharge pipe manifold, and its third end is connected with suction push cylinder.Compared with prior art, the beneficial effects of the application are: through single integrated pry block, oil, water, mud separation of oily sludge can be realized, which greatly reduces the land cost and control difficulty of equipment.

Description

Technical Field

[0001] This invention belongs to the field of integrated treatment technology for oily sludge, specifically relating to a fully automatic integrated treatment device, control system, and treatment method for oily sludge. Background Technology

[0002] Oily sludge is oily solid waste generated in oil exploration, development, transportation, refining, and oily wastewater treatment projects. It mainly consists of oil sludge and oil sands generated during oil exploration and chemical production. It is characterized by large production volume (more than 2 million tons of crude oil produced annually, excluding refinery sludge), high water content (up to 99%), and high oil content (15%-20%).

[0003] Existing oily sludge treatment methods often employ multi-module integrated approaches, which results in large footprints for the entire treatment equipment, complex processing procedures, and the need for corresponding real-time monitoring modules at each stage, making control and monitoring quite cumbersome. Summary of the Invention

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0005] This invention provides a fully automatic integrated treatment device and control system for oily sludge. It can achieve the separation of oil, water and sludge in oily sludge through a single integrated skid, which greatly reduces the equipment's footprint and control difficulty.

[0006] This invention discloses a fully automated integrated treatment device for oily sludge, comprising:

[0007] Tank body;

[0008] A first partition is provided in the tank body and divides it into a mixing chamber and a sludge chamber;

[0009] A second partition is provided inside the sludge chamber and divides it into a sludge discharge chamber and an overflow chamber.

[0010] A sludge discharge port is provided between the mixing chamber and the sludge discharge chamber, and a sludge discharge baffle is provided at the sludge discharge port;

[0011] An overflow port is provided between the mixing chamber and the overflow chamber, and an adjustable overflow baffle is provided at the overflow port;

[0012] The discharge port is located at the bottom of the sludge discharge chamber and is connected to a discharge connecting pipe;

[0013] The connecting tee has its first end connected to the discharge connecting pipe, its second end connected to the external discharge manifold, and its third end connected to the suction push cylinder.

[0014] In some embodiments, the connecting tee is T-shaped, and the external drain manifold and the suction push cylinder are respectively located at opposite ends of the T-shaped connecting tee.

[0015] In some implementations, it also includes:

[0016] A feeding elevator is located on one side of the tank, and its discharge port is connected to the feeding port at the upper end of the mixing chamber through a feeding connecting pipe.

[0017] In some implementations, it also includes:

[0018] A frame for supporting the tank;

[0019] A gravity weighing unit is located between the tank and the frame, and both the unloading connection pipe and the loading connection pipe are flexible hoses.

[0020] In some embodiments, the sludge discharge baffle includes:

[0021] The door panel is hinged to the upper edge of the mud discharge port via a hinge shaft;

[0022] A gantry is hinged to one end of the outer side of the door panel and is hinged to the inner wall of the mud discharge chamber. When the door panel is closed in the mud discharge port, the gantry is set in a horizontal position.

[0023] A mud discharge baffle drive device is connected to the gantry and is used to drive the gantry to deflect along the hinge axis to open the mud discharge port.

[0024] In some embodiments, the sludge discharge baffle drive device includes:

[0025] A pull shaft is mounted on the gantry.

[0026] A hinge block is hinged to the pull shaft;

[0027] A connecting seat is rotatably connected to the hinge block;

[0028] The lead screw is connected to the connecting seat and threaded to the upper end of the mud discharge chamber.

[0029] In some implementations, the overflow baffle includes:

[0030] The guide rail is located at the overflow port;

[0031] The sliding plate is slidably mounted on the guide rail;

[0032] An overflow baffle driving device is connected to the slide plate and is used to drive the slide plate to move along the guide rail to change the overflow height at the overflow port.

[0033] In some embodiments, the discharge connecting pipe is connected to two connecting tees via two distribution pipes; each of the distribution pipes is equipped with a gate valve.

[0034] The present invention also discloses a control system for a fully automatic integrated oily sludge treatment device;

[0035] The control system is connected to two suction and push cylinders to control the two suction and push cylinders to work alternately.

[0036] This invention also discloses an integrated treatment method for oily sludge, comprising the following steps:

[0037] Close the sludge discharge port and overflow port, add the oily sludge to be treated into the mixing chamber, and obtain the total weight of the added oily sludge by real-time weighing; add the treatment agent to be added into the mixing chamber, and obtain the total weight of the added treatment agent by real-time weighing.

[0038] The mixing is carried out by the stirring paddle installed in the mixing chamber, and the oil, water and mud are separated into layers by letting it stand after mixing.

[0039] Then, the position and height of the overflow baffle are adjusted to achieve the discharge and collection of oil overflow into the overflow chamber and water overflow into the overflow chamber.

[0040] Open the sludge discharge port, start the stirring paddle, and use the negative pressure adsorption of the suction cylinder to draw the sludge out from the discharge port and discharge it through the external discharge manifold.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0042] 1. Oil, water, and sludge can be separated using a single tank structure, and the sludge can be discharged quickly and effectively. Specifically, oil and water can be separated sequentially by changing the overflow height at the overflow port. Considering the colloidal state of the remaining sludge mixture, the sludge is discharged quickly through a combination of thrust, gravity, and negative pressure adsorption.

[0043] 2. Based on the physical properties of sludge, the structure of the sludge discharge baffle at the discharge port was optimized, making its closed support more stable and less prone to leakage problems.

[0044] 3. The adjustment method of the overflow baffle has been optimized to make it easier to operate and improve operational efficiency. The height adjustment is improved by using a lead screw to improve the accuracy of the height adjustment, thereby better achieving the balance adjustment between the baffle and the layered interface.

[0045] 4. The suction and push cylinder adopts an alternating suction and push cycle, which can greatly improve the sludge discharge efficiency. Attached Figure Description

[0046] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0047] Figure 1 This is a schematic diagram of the internal structure of the present invention.

[0048] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0049] Figure 3 This is a schematic diagram of the internal structure of the sludge discharge chamber and overflow chamber of the present invention.

[0050] Figure 4 For this Figure 3 Enlarged view of point A in the middle.

[0051] Attached diagram descriptions: 1. Tank body; 2. Mixing chamber; 3. Sludge discharge chamber; 4. Overflow chamber; 5. Overflow port; 6. Sludge discharge port; 7. Feeding port; 8. Feeding elevator; 9. Feeding connection pipe; 10. Agitator; 11. Agitator motor; 12. Distribution pipe; 13. Feeding connection pipe; 14. Gate valve; 15. Suction push cylinder; 16. External discharge manifold; 17. Hinge shaft; 18. Door panel; 19. Door frame; 20. Hinge; 21. Pulling shaft; 22. Hinge block; 23. Threaded seat; 24. Lead screw; 25. Frame; 26. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments provided by this invention without inventive effort are within the scope of protection of this invention.

[0053] Obviously, the accompanying drawings described below are merely some examples or embodiments of the present invention. Those skilled in the art can apply the present invention to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this invention, modifications to design, manufacturing, or production based on the technical content disclosed in this invention are merely conventional technical means and should not be construed as insufficient disclosure of the present invention.

[0054] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention may be combined with other embodiments without conflict.

[0055] A fully automated integrated oily sludge treatment unit includes:

[0056] Tank 1, the tank 1 adopts a horizontal structure as a whole, and the tank 1 must be in a horizontal structure state, and is equipped with a corresponding stirring paddle 11 and a stirring motor 12 for driving the stirring paddle 11 to rotate.

[0057] A first partition is provided in the tank body 1 and divides it into a mixing chamber 2 and a sludge chamber; the structure of the first partition separates the left and right ends of the tank body 1.

[0058] A second baffle is disposed within the sludge chamber and divides it into a sludge discharge chamber 3 and an overflow chamber 4; specifically, the second baffle is L-shaped and disposed on the upper side of one side of the sludge chamber (e.g., Figure 4 (As shown).

[0059] A mud discharge port 6 is provided between the mixing chamber 2 and the mud discharge chamber 3, and a mud discharge baffle is provided at the mud discharge port 6;

[0060] An overflow port 5 is provided between the mixing chamber 2 and the overflow chamber 4, and an adjustable overflow baffle is provided at the overflow port 5;

[0061] The discharge port 7 is located at the bottom end of the mud discharge chamber 3 and is connected to the discharge connecting pipe 14;

[0062] The connecting tee has its first end connected to the discharge connecting pipe 14, its second end connected to the external discharge manifold 17, and its third end connected to the suction push cylinder 16.

[0063] Oily sludge enters the mixing chamber 2, and then the corresponding treatment agent is added. The mixture is stirred by the agitator 11 to ensure a thorough chemical reaction. After stirring for a period of time, the agitator 11 is stopped, and the mixture is allowed to stand for a period to allow for the separation of oil, water, and sludge. After separation, the upper position of the overflow baffle is gradually adjusted to the oil-water interface layer to allow oil overflow, collection, and discharge. Then, the upper position of the overflow baffle is lowered to reach the water-sludge interface layer to allow water overflow, collection, and discharge. After oil and water discharge is completed, the sludge discharge baffle is opened. Driven by the rotation of the agitator 11, the sludge is squeezed into the sludge discharge chamber 3, and the negative pressure suction of the suction cylinder 16 discharges the sludge.

[0064] In some embodiments, the connecting tee is T-shaped, and the external drain manifold 17 and the suction push cylinder 16 are respectively located at opposite ends of the T-shaped connecting tee.

[0065] Specifically, the upper end of the connecting tee is connected to the discharge connecting pipe 14, and the lower end is provided with an external discharge manifold 17 and the suction push cylinder 16 on both sides to improve the working efficiency of the suction push cylinder 16.

[0066] In some embodiments, it also includes:

[0067] A feeding elevator 9 is located on one side of the tank 1. The discharge port of the feeding elevator 9 is connected to the feeding port 8 at the upper end of the mixing chamber 2 via a feeding connecting pipe 10. The feeding elevator 9 can realize automatic feeding of sludge, improving the degree of full automation of the entire equipment. Correspondingly, the stirring motor 12 and the feeding elevator 9 can be arranged opposite each other on both sides of the tank 1, thereby improving the overall space utilization rate.

[0068] In some embodiments, it also includes:

[0069] Frame 26 is used to support the tank 1;

[0070] A gravity weighing unit is located between the tank 1 and the frame 26, and both the unloading connecting pipe 14 and the loading connecting pipe 10 are flexible hoses.

[0071] The above structural design enables real-time monitoring of gravity changes, allowing both sludge and chemicals to have their specific weights determined by the difference in gravity before and after the change, thus ensuring proper mixing ratios. Specifically, corresponding gravity weighing units can be installed at each of the four ends of tank 1.

[0072] In some embodiments, the sludge discharge baffle includes:

[0073] The door panel 19 is hinged to the upper edge of the mud discharge port 6 via the hinge shaft 18;

[0074] The gantry 20 is hinged to one end of the outer side of the door panel 19 and is hinged to the inner wall of the mud discharge chamber 3 via a hinge 21. When the door panel 19 is closed in the mud discharge port 6, the gantry 20 is set in a horizontal state.

[0075] A mud discharge baffle drive device is connected to the gantry 20 and is used to drive the gantry 19 to deflect along the hinge axis 18 to open the mud discharge port 6.

[0076] The purpose of adopting the above structure for the sludge discharge baffle is that, due to the large amount of sludge to be processed, a large outward compressive force will be generated during the mixing process, which will lead to a decrease in the support performance of its sealing part. Through the above structure, the outward thrust can be transmitted to the tank itself through the gantry 20 and hinge 21, thereby improving its support stability.

[0077] Specifically, when the door frame 20 is pulled upwards in the open state, the sludge in the mixing chamber 2 will also exert an outward thrust, thereby causing the door frame 20 to deflect outwards and open. Through the compensation of each hinge, the hinge of the hinge 21 moves upwards to provide opening space. During the opening process, it is not necessary to open the door panel 19 to a large opening angle.

[0078] Specifically, the sludge discharge baffle driving device includes:

[0079] Pull shaft 22 is mounted on the gantry 20;

[0080] Hinged block 23 is hinged to the pull shaft 22;

[0081] Connecting seat 24 is rotatably connected to the hinge block 23;

[0082] The lead screw 25 is connected to the connecting seat 24 and threaded to the upper end of the mud discharge chamber 3.

[0083] The above-described structure is a specific structure for driving the gantry 20 to move upwards, which is achieved by a lead screw structure that causes the lead screw 25 to pull the gantry 20 to move. Similarly, other driving methods can also be used.

[0084] In the opening and closing process described above, the sludge has an outward pushing force when opening, so it is relatively easy to open and does not require too much driving force to open the door panel 19. When closing, it is also relatively easy because there is no internal venting.

[0085] In some embodiments, the overflow baffle includes:

[0086] The guide rail is located at the overflow port 5;

[0087] The sliding plate is slidably mounted on the guide rail;

[0088] An overflow baffle driving device is connected to the slide plate and is used to drive the slide plate to move along the guide rail to change the overflow height at the overflow port 5.

[0089] The overflow baffle drive device can use other methods such as lead screws or cylinders to change the overflow height at overflow port 5.

[0090] In some embodiments, the discharge connecting pipe 14 is connected to two connecting tees via two distribution pipes 13; each distribution pipe 13 is provided with a gate valve 15. This arrangement forms two suction-push cylinders 16, and the alternating operation of the two suction-push cylinders 16 improves work efficiency.

[0091] The control system for the fully automatic integrated oily sludge treatment device includes the fully automatic integrated oily sludge treatment device and control system as described in any of the above embodiments;

[0092] The control system is connected to two suction and push cylinders 16 to control the two suction and push cylinders 16 to work alternately.

[0093] Meanwhile, the control system is also connected to the gravity weighing unit, the feeding elevator 9, the mud discharge baffle drive device, and the overflow baffle drive device, so as to monitor the status of each link in real time.

[0094] An integrated treatment method for oily sludge includes the following steps:

[0095] Close the sludge discharge port 6 and the overflow port 5, add the oily sludge to be treated into the mixing chamber 2, and obtain the total weight of the added oily sludge by real-time weighing; add the treatment agent to be added into the mixing chamber 2, and obtain the total weight of the added treatment agent by real-time weighing.

[0096] The mixing is carried out by the stirring paddle 11 installed in the mixing chamber 2, and the oil, water and mud are separated into layers by letting it stand after mixing.

[0097] Then, the position and height of the overflow baffle are adjusted to achieve the discharge and collection of oil overflow into the overflow chamber 4 and water overflow into the overflow chamber 4.

[0098] Open the sludge discharge port 6, start the stirring paddle 11 to move, and use the negative pressure adsorption of the suction push cylinder 16 to draw the sludge out from the discharge port 7 and discharge it through the external discharge manifold 17.

[0099] Its working principle and steps are as follows:

[0100] The control system closes the sludge discharge port 6 and overflow port 5, starts the feeding elevator 9 to feed the oily sludge to be treated into the mixing chamber 2. The weight of the added oily sludge is monitored by the gravity weighing unit, and then the corresponding total weight of the treatment agent is proportioned according to its value. Then the stirring motor 12 is started to stir it. After the mixing is completed, it is left to stand for a period of time to achieve the separation of oil, water and mud through sedimentation. At this time, the slide plate is first moved down to the oil-water interface layer to discharge the oil, and then the slide plate is moved down to the water-mud interface layer to discharge the water. After the discharge is completed, the door plate 19 is opened so that the remaining mud-water mixture flows into the sludge discharge chamber 3. Under the action of gravity and the suction action of the suction push cylinder 16, the sludge is drawn out from the discharge port 7 and discharged through the external discharge manifold 17.

[0101] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic integrated oily sludge treatment device, characterized in that, include: Tank body; A first partition is provided in the tank body and divides it into a mixing chamber and a sludge chamber; A second partition is provided inside the sludge chamber and divides it into a sludge discharge chamber and an overflow chamber. A sludge discharge port is provided between the mixing chamber and the sludge discharge chamber, and a sludge discharge baffle is provided at the sludge discharge port; An overflow port is provided between the mixing chamber and the overflow chamber, and an adjustable overflow baffle is provided at the overflow port; The discharge port is located at the bottom of the sludge discharge chamber and is connected to a discharge connecting pipe; The three-way connector has its first end connected to the discharge connecting pipe, its second end connected to the external discharge manifold, and its third end connected to the suction push cylinder. The sludge discharge baffle includes: The door panel is hinged to the upper edge of the mud discharge port via a hinge shaft; A gantry is hinged to one end of the outer side of the door panel and is hinged to the inner wall of the mud discharge chamber. When the door panel is closed in the mud discharge port, the gantry is set in a horizontal position. A mud discharge baffle driving device is connected to the gantry and is used to drive the gantry to deflect along the hinge axis to open the mud discharge port; The sludge discharge baffle driving device includes: A pull shaft is mounted on the gantry. A hinge block is hinged to the pull shaft; The connecting seat is rotatably connected to the hinge block; The lead screw is connected to the connecting seat and threaded to the upper end of the mud discharge chamber.

2. The fully automatic integrated oily sludge treatment device according to claim 1, characterized in that, The connecting tee is T-shaped, and the external drain manifold and the suction push cylinder are respectively located at opposite ends of the T-shaped connecting tee.

3. The fully automatic integrated oily sludge treatment device according to claim 1, characterized in that, Also includes: A feeding elevator is located on one side of the tank body, and the discharge port of the feeding elevator is connected to the feeding port at the upper end of the mixing chamber through a feeding connecting pipe.

4. The fully automatic integrated oily sludge treatment device according to claim 3, characterized in that, Also includes: A frame for supporting the tank; A gravity weighing unit is located between the tank and the frame, and both the unloading connection pipe and the loading connection pipe are flexible hoses.

5. The fully automatic integrated oily sludge treatment device according to claim 1, characterized in that, The overflow baffle includes: The guide rail is located at the overflow port; The sliding plate is slidably mounted on the guide rail; An overflow baffle driving device is connected to the slide plate and is used to drive the slide plate to move along the guide rail to change the overflow height at the overflow port.

6. The fully automatic integrated oily sludge treatment device according to claim 1, characterized in that, The feeding connection pipe is connected to two connecting tees via two distribution pipes; each of the distribution pipes is equipped with a gate valve.

7. A fully automatic integrated oily sludge treatment device control system, characterized in that, Includes the fully automated integrated oily sludge treatment device and control system as described in claim 6; The control system is connected to two suction and push cylinders to control the two suction and push cylinders to work alternately.

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