Oil-containing sludge reduction treatment drying device

Abstract

The utility model relates to oil sludge treatment technical field, concretely relates to a kind of drying equipment for oil sludge reduction treatment, including inner cylinder, outer cylinder, moving head and frame, the inner cylinder two ends are feed inlet and discharge outlet respectively, the outer cylinder with the frame fixed connection, the inner cylinder in the outer cylinder and with the outer cylinder rotation connection, the moving head is located in the inner cylinder discharge outlet side, the moving head with the frame sliding connection, the moving head is used to seal the discharge outlet of the inner cylinder.The utility model inner cylinder drives inside oil sludge to overturn, combine gas heating assembly to heat the space between inner and outer cylinder and give the inner cylinder heat transfer, make the moisture in sludge and oil component fully volatilize, to effectively remove the combined water and adsorbed oil in oil sludge, to realize more thorough drying reduction, greatly improve drying effect.

Description

Technical Field

[0001] This utility model relates to the field of oily sludge treatment technology, specifically to a drying device for reducing the volume of oily sludge. Background Technology

[0002] Oily sludge contains a large amount of oil, water, and solid impurities. Direct discharge or improper disposal can cause environmental pollution. Drying treatment of oily sludge is a method to remove water and some oil from the sludge, thereby reducing the overall volume and mass of the sludge. Most existing treatments of oily sludge use screw separators, which separate the oil and solid particles in the sludge through the rotating and squeezing action of the screw, achieving preliminary volume reduction. However, this method can only separate free oil and cannot effectively remove bound water and adsorbed oil from the sludge. After separation, the sludge still contains a high level of water and oil.

[0003] Therefore, a drying device for reducing the volume of oily sludge is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drying device for reducing the volume of oily sludge. The inner cylinder drives the internal oily sludge to rotate, and combined with a gas heating component, the space between the inner and outer cylinders is heated and the heat is transferred to the inner cylinder, allowing the water and oil in the sludge to fully evaporate, thereby effectively removing the bound water and adsorbed oil from the oily sludge, achieving more thorough drying and volume reduction, and significantly improving the drying effect. This can solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes an inner cylinder, an outer cylinder, a moving head, and a frame. The two ends of the inner cylinder are a feed inlet and a discharge outlet, respectively. The outer cylinder is fixedly connected to the frame. The inner cylinder is inside the outer cylinder and rotatably connected to it. The moving head is located on the discharge outlet side of the inner cylinder and is slidably connected to the frame. The moving head is used to seal the discharge outlet of the inner cylinder.

[0006] Preferably, a No. 1 fan, a No. 2 fan, and a gas solenoid valve are fixedly installed inside the frame. A gas heating assembly is provided between the outer cylinder and the inner cylinder. The No. 1 fan is used to pump air into the gas heating assembly. The gas solenoid valve is connected to the gas heating assembly through a gas pipe. The No. 2 fan is connected to the outer cylinder through an exhaust pipe.

[0007] Preferably, an air heating chamber is fixedly connected to one end of the outer cylinder, the No. 1 fan is connected to the air heating chamber through an air pipe, and the air heating chamber is connected to the inside of the outer cylinder through an air pipe.

[0008] Preferably, the air heating chamber is provided with a spiral air passage, and the two ends of the spiral air passage are respectively connected to the first air pipe and the second air pipe.

[0009] Preferably, the inner cylinder has a sealing chamber cover at the feed end and a first sealing surface and a second sealing surface at the discharge end.

[0010] Preferably, the moving head is slidably connected to the frame via a slide rail, and a telescopic rod is provided between the moving head and the frame.

[0011] Preferably, the moving head is provided with a first sealing head and a second sealing head at one end near the inner cylinder, and a plurality of first springs are provided between the second sealing head and the first sealing head, and the second sealing surface is located inside the inner cylinder.

[0012] Preferably, the outer side of the second sealing head is in contact with the second sealing surface, the outer edge of the first sealing head is provided with a sealing gasket, and the moving head is provided with a rotating motor, which is used to drive the first sealing head to rotate.

[0013] Compared with the prior art, this utility model provides a drying device for reducing the volume of oily sludge, which has the following beneficial effects: 1. The inner cylinder drives the internal oily sludge to turn over, and the gas heating component heats the space between the inner and outer cylinders and transfers the heat to the inner cylinder, so that the water and oil in the sludge can be fully evaporated, thereby effectively removing the bound water and adsorbed oil in the oily sludge, thus achieving more thorough drying and volume reduction, and greatly improving the drying effect.

[0014] 2. The air heating chamber utilizes the heat between the inner and outer cylinders, and the spiral air duct increases the airflow path. The air pumped in by the No. 1 fan is preheated through the spiral air duct, reducing the heat consumption required for gas combustion, and at the same time avoiding the accumulation of condensate in the air in the pipeline.

[0015] 3. The No. 2 sealing head and the No. 1 spring adapt to the pressure inside the inner cylinder, fitting or disengaging from the No. 2 sealing surface to ensure smooth discharge of volatiles. The moving head is easily moved via the slide rail and telescopic rod, facilitating the sealing and unlocking of the inner cylinder outlet, and making it convenient to remove dried materials and clean the equipment. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 An isometric structural schematic diagram of the drying equipment for reducing the volume of oily sludge according to this utility model; Figure 2A schematic diagram of the outer cylinder and moving head structure provided for the drying equipment for reducing the volume of oily sludge according to this utility model; Figure 3 A schematic diagram of the inner cylinder and moving head structure provided for the drying equipment for reducing the volume of oily sludge according to this utility model; Figure 4 A schematic diagram of the isometric structure of the air heating chamber provided by the drying equipment for reducing the volume of oily sludge according to this utility model; Figure 5 A schematic diagram of the internal structure of the air heating chamber provided by the drying equipment for reducing the volume of oily sludge according to this utility model; Figure 6 A schematic diagram of the disassembled structure of the moving head provided by the drying equipment for reducing the volume of oily sludge according to this utility model. Figure 7 A schematic diagram of the cross-sectional structure of the inner and outer cylinders of the drying equipment for reducing the volume of oily sludge according to this utility model.

[0017] In the diagram: 1. Inner cylinder; 2. Outer cylinder; 3. Moving head; 4. Frame; 5. Feed inlet; 6. Discharge outlet; 7. No. 1 blower; 8. No. 2 blower; 9. Gas solenoid valve; 10. Air heating chamber; 11. Air pipe one; 12. Air pipe two; 13. Spiral air passage; 14. Sealed chamber cover; 15. No. 1 sealing surface; 16. No. 2 sealing surface; 17. Slide rail; 18. Telescopic rod; 19. No. 1 sealing head; 20. No. 2 sealing head; 21. No. 1 spring; 22. Sealing gasket; 23. Rotating motor. Detailed Implementation

[0018] 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.

[0019] Example: Please see Figure 1 - Figure 7This embodiment of a drying device for reducing the volume of oily sludge includes an inner cylinder 1, an outer cylinder 2, a moving head 3, and a frame 4. The inner cylinder 1 has an inlet 5 and an outlet 6 at its two ends, respectively. The outer cylinder 2 is fixedly connected to the frame 4. The inner cylinder 1 is inside the outer cylinder 2 and rotatably connected to it. The moving head 3 is located on the side of the outlet 6 of the inner cylinder 1 and is slidably connected to the frame 4. The moving head 3 is used to seal the outlet 6 of the inner cylinder 1. The frame 4 is used to fix the position of each component. The outer cylinder 2 is provided with a heat insulation layer and a bearing is provided between it and the inner cylinder 1. The outer cylinder 2 provides support and protection for the inner cylinder 1 and forms a closed space to reduce heat loss. The inner cylinder 1 can rotate inside the outer cylinder 2. When rotating, it can cause the oily sludge inside to turn over, avoiding uneven heating of the sludge. The moving head 3 can move closer to or away from the outlet 6 of the inner cylinder 1 by sliding with the frame 4, thereby sealing and unlocking the outlet 6. A No. 1 fan 7, a No. 2 fan 8, and a gas solenoid valve 9 are fixedly installed inside the frame 4. A gas heating assembly is installed between the outer cylinder 2 and the inner cylinder 1. The No. 1 fan 7 is used to pump air into the gas heating assembly. The gas solenoid valve 9 is connected to the gas heating assembly through a gas pipe. The No. 2 fan 8 is connected to the inner cylinder 2 through an exhaust pipe. The gas heating assembly is the heat source for heating the inner cylinder 1. The gas heating assembly is an existing mature component, so it will not be described in detail here. The No. 1 fan 7 pumps air into the gas heating assembly to provide sufficient oxygen for gas combustion and ensure heating efficiency. The gas solenoid valve 9 is used to control the gas supply and discharge of the gas pipeline. In addition to the solenoid valve, the gas pipeline is also equipped with a manual valve. Gas will only be supplied after both valves are opened, which improves the safety of gas use.

[0020] The second fan 8 can extract the volatile waste gas between the inner and outer cylinders 2 through the exhaust pipe. The exhaust pipe can also be connected to the waste gas treatment equipment to reduce the pollution of waste gas to the environment. An air heating chamber 10 is fixedly connected to one end of the outer cylinder 2. The first fan 7 is connected to the air heating chamber 10 through air pipe 11. The air heating chamber 10 is connected to the inside of the outer cylinder 2 through air pipe 2 12. The air heating chamber 10 is used to heat the air by utilizing the heat between the inner cylinder 1 and the outer cylinder 2. The air heating chamber 10 is provided with a spiral air passage 13. The two ends of the spiral air passage 13 are connected to air pipe 11 and air pipe 2 12 respectively. The spiral air passage 13 can extend the air flow path in the heating chamber and improve the preheating effect. The inner cylinder 1 has a sealing cover 14 at the feed end, which has a sealing effect. The inner cylinder 1 has a first sealing surface 15 and a second sealing surface 16 at the discharge end. The sealing cover 14 can be opened to add oily sludge to the inner cylinder 1. When closed, it can ensure the sealing of the inner cylinder 1, prevent heat loss and exhaust gas leakage. The first sealing surface 15 and the second sealing surface 16 fit with the sealing structure of the moving head 3 to ensure the sealing effect.

[0021] The moving head 3 and the frame 4 are slidably connected by the slide rail 17. A telescopic rod 18 is provided between the moving head 3 and the frame 4. The telescopic rod 18 is a hydraulic rod and is connected by an external hydraulic pipeline. The pressure of the telescopic rod 18 can push the moving head 3 close to the inner cylinder 1 to achieve sealing. At the same time, the pressure of the telescopic rod 18 and the friction between the moving head 3 and the inner cylinder 1 are sufficient to drive the inner cylinder 1 to rotate.

[0022] The moving head 3 is provided with a first sealing head 19 and a second sealing head 20 at one end near the inner cylinder 1. Multiple first springs 21 are provided between the second sealing head 20 and the first sealing head 19. The inner cylinder 1 is provided with a first sealing surface 15 and a second sealing surface 16 at one end near the moving head 3. The second sealing surface 16 is located inside the inner cylinder 1. The outer side of the second sealing head 20 is in contact with the second sealing surface 16. A sealing gasket 22 is provided on the outer edge of the first sealing head 19. A rotating motor 23 is provided inside the moving head 3. The rotating motor 23 is used to drive the first sealing head 19 to rotate.

[0023] Spring 21 provides elastic support for sealing head 20, enabling sealing head 20 to adaptively fit or detach from sealing surface 16 according to pressure changes inside inner cylinder 1. Steel wire is lined inside sealing gasket 22, which increases friction with inner cylinder 1 under pressure from moving head 3, assisting in rotating inner cylinder 1. Rotating motor 23 can drive sealing head 19 to rotate, thereby transmitting rotational force through friction between sealing gasket 22 and inner cylinder 1, assisting in stable rotation of inner cylinder 1.

[0024] The inner cylinder 1 is provided with multiple air outlets, which are located between the first sealing surface 15 and the second sealing surface 16. The inner side of the air outlet is covered with a porous mesh, which is a consumable and needs to be cleaned and replaced in time after use. The air outlet is used to allow the water and oil that evaporate in the inner cylinder 1 to enter the space between the inner and outer cylinders 2, while the porous mesh can filter the solid particles carried in the volatile matter.

[0025] In use, the moving head 3 is first moved towards the inner cylinder 1. The discharge port 6 of the inner cylinder 1 is sealed by the first sealing head 19 and the second sealing head 20 respectively fitting with the first sealing surface 15 and the second sealing surface 16. Then, the space between the inner and outer cylinders 2 is heated by the gas heating component. After the heat is transferred to the inner cylinder 1, the inner cylinder 1 rotates under the action of the rotating motor 23 and friction, causing the oily sludge inside to turn over, so that the water and oil in the sludge can be fully volatilized. The volatiles are pushed open by the second sealing head 20 under the action of internal pressure, and enter the space between the inner and outer cylinders 2 after passing through the air outlet and the porous mesh filter. Finally, they are discharged by the second blower 8 through the exhaust pipe, thereby removing the bound water and adsorbed oil in the oily sludge, achieving more thorough drying and volume reduction, and greatly improving the drying effect. Furthermore, the combination of the air heating chamber 10 and the spiral air duct 13 not only utilizes the heat between the inner and outer cylinders 2 to preheat the air pumped in by the No. 1 fan 7, reducing the heat consumption required for gas combustion, but also extends the airflow path through the spiral air duct 13, preventing condensate in the air from settling in the pipe and ensuring the stability of the air supply; the combination of the No. 2 sealing head 20 and the No. 1 spring 21 can maintain the sealing of the inner cylinder 1 in the early stage of drying, ensuring stable internal temperature, and can also automatically open when the internal pressure increases, allowing volatiles to be discharged; the moving head 3, through the cooperation of the slide rail 17 and the telescopic rod 18, facilitates the backward movement of the head 3 after drying, making it easy to remove the dried material inside; the porous mesh setting can effectively intercept solid particles, reducing the risk of blockage in the exhaust pipe and exhaust gas treatment equipment. The working principle of the above embodiment is as follows: the outer cylinder 2, the first fan 7, the second fan 8, the gas solenoid valve 9 and other components are fixed by the frame 4. The outer cylinder 2 supports the inner cylinder 1 and forms a closed heating space. The inner cylinder 1 can rotate inside the outer cylinder 2 to drive the sludge to turn over. The gas heating component heats the inner cylinder 1 with the air pumped in by the first fan 7 and the gas. The air heating chamber 10 uses the residual heat between the inner and outer cylinders 2 to preheat the air pumped in by the first fan 7 through the spiral air passage 13 to improve energy utilization. The moving head 3 slides along the slide rail 17 under the drive of the telescopic rod 18. The inner cylinder 1 is sealed by the contact between the first sealing head 19 and the first sealing surface 15, and the second sealing head 20 and the second sealing surface 16. The rotating motor 23 drives the first sealing head 19 to rotate. Combined with the friction between the sealing gasket 22 and the inner cylinder 1 and the pressure of the telescopic rod 18, the inner cylinder 1 is driven to rotate.

[0026] Under pressure, the volatiles inside the inner cylinder 1 push open the second sealing head 20, and after passing through the outlet and the porous mesh filter, enter the space between the inner and outer cylinders 2. They are then discharged through the exhaust pipe by the second blower 8. During use, the sealing gasket 22 of the first sealing head 19 is in contact with the first sealing surface 15, and the second sealing head 20 is in contact with the second sealing surface 16. First, open the sealing chamber cover 14 at the feed end of the inner cylinder 1, and add the oily sludge to be treated into the inner cylinder 1. Close the sealing chamber cover 14, open the manual valve and the gas solenoid valve 9 of the gas pipe, and start the first blower 7. Air passes through the air heating chamber 10 and enters the gas heating assembly, where it mixes and burns with the gas to fuel the inner cylinder 1. Heating is initiated by starting the rotating motor 23, which drives the first sealing head 19 to rotate. Through friction, the inner cylinder 1 rotates within the outer cylinder 2, causing the sludge to tumble and heat up. During the drying process, the volatiles push the second sealing head 20 through the air outlet and perforated mesh between the inner and outer cylinders 2. The second blower 8 is started to discharge the volatiles through the exhaust pipe, which can be connected to waste gas treatment equipment. After drying is completed, the gas valve, the first blower 7, and the rotating motor 23 are closed. The telescopic rod 18 is started to move the moving head 3 backward and remove the dried material. Before the next use, the first sealing surface 15 and the second sealing surface 16 are cleaned, and the perforated mesh is cleaned or replaced.

[0027] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0028] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for reducing the volume of oily sludge, characterized in that: The device includes an inner cylinder (1), an outer cylinder (2), a moving head (3), and a frame (4). The inner cylinder (1) has an inlet (5) and an outlet (6) at its two ends. The outer cylinder (2) is fixedly connected to the frame (4). The inner cylinder (1) is inside the outer cylinder (2) and rotatably connected to it. The moving head (3) is located on the side of the outlet (6) of the inner cylinder (1). The moving head (3) is slidably connected to the frame (4). The moving head (3) is used to seal the outlet (6) of the inner cylinder (1).

2. The drying equipment for reducing the volume of oily sludge according to claim 1, characterized in that: A first fan (7), a second fan (8), and a gas solenoid valve (9) are fixedly installed inside the frame (4). A gas heating assembly is provided between the outer cylinder (2) and the inner cylinder (1). The first fan (7) is used to pump air into the gas heating assembly. The gas solenoid valve (9) is connected to the gas heating assembly through a gas pipe. The second fan (8) is connected to the inner cylinder (2) through an exhaust pipe.

3. The drying equipment for reducing the volume of oily sludge according to claim 2, characterized in that: An air heating chamber (10) is fixedly connected to one end of the outer cylinder (2). The No. 1 fan (7) is connected to the air heating chamber (10) through an air pipe (11). The air heating chamber (10) is connected to the inside of the outer cylinder (2) through an air pipe (12).

4. The drying equipment for reducing the volume of oily sludge according to claim 3, characterized in that: The air heating chamber (10) is provided with a spiral air passage (13), and the two ends of the spiral air passage (13) are respectively connected to the first air pipe (11) and the second air pipe (12).

5. The drying equipment for reducing the volume of oily sludge according to claim 1, characterized in that: The inner cylinder (1) has a sealing cover (14) at the feed end and a first sealing surface (15) and a second sealing surface (16) at the discharge end.

6. The drying equipment for reducing the volume of oily sludge according to claim 1, characterized in that: The moving head (3) and the frame (4) are slidably connected by a slide rail (17), and a telescopic rod (18) is provided between the moving head (3) and the frame (4).

7. The drying equipment for reducing the volume of oily sludge according to claim 5, characterized in that: The moving head (3) is provided with a first sealing head (19) and a second sealing head (20) at one end near the inner cylinder (1). Multiple first springs (21) are provided between the second sealing head (20) and the first sealing head (19). The second sealing surface (16) is located inside the inner cylinder (1).

8. The drying equipment for reducing the volume of oily sludge according to claim 7, characterized in that: The outer side of the second sealing head (20) is in contact with the second sealing surface (16). The outer edge of the first sealing head (19) is provided with a sealing pad (22). The moving head (3) is provided with a rotating motor (23), which is used to drive the first sealing head (19) to rotate.

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