Oil-containing solid waste thermal desorption separation device

Abstract

The utility model relates to oil-containing solid waste treatment technical field discloses oil-containing solid waste heat desorption separation device, including bottom plate and support plate, the bottom plate with support plate top all are fixedly connected with heating device, heating device top is fixedly connected with desorption bucket one and desorption bucket two respectively, desorption bucket one top is fixedly connected with gas duct no.

Description

Technical Field

[0001] This utility model relates to the field of oily solid waste treatment technology, and in particular to an oily solid waste thermal desorption and separation device. Background Technology

[0002] The thermal desorption and separation device for oily solid waste is used to treat oily waste from the petroleum industry. It heats the oil to vaporize it, then recovers it through condensation. The exhaust gas is treated to meet emission standards. It consists of a pretreatment unit, a thermal desorption unit, a condensation collection unit, and an exhaust gas treatment unit. It has advantages such as high resource recovery rate, strong harmlessness, and wide applicability, but it also has limitations such as high energy consumption and high initial investment.

[0003] The currently used thermal desorption separation device for oily solid waste first heats the oil in an oxygen-free or low-oxygen environment through a thermal desorption unit, causing the oil to vaporize and separate from the solid matrix. The oil and gas then enter the condensation system for liquefaction and recovery. The exhaust gas is purified through catalytic oxidation and other processes, while the solid waste is cooled and discharged in compliance with standards, thus achieving the separation and harmless and resource-based treatment of oil, solids, and gas.

[0004] The currently used thermal desorption and separation devices for oily solid waste, although they achieve the separation and harmless treatment of oil, solids and gas, usually adopt a single desorption separation and cannot extract and separate the separated oil and gas again. This results in the recovered oil having mixed components and limited value, and cannot achieve the refined and high-value utilization of resources. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a thermal desorption and separation device for oily solid waste, which aims to improve the problem of mixed oil components in the existing thermal desorption device for oily solid waste due to single separation and no secondary oil and gas extraction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An oily solid waste thermal desorption and separation device includes a base plate and a support plate. A heating device is fixedly connected to the top of both the base plate and the support plate. A desorption tank 1 and a desorption tank 2 are fixedly connected to the top of the heating device, respectively. A gas guide pipe 1 is fixedly connected to the top of the desorption tank 1, and a conversion component is installed at the bottom of the gas guide pipe 1. Multiple support rods are fixedly connected between the base plate and the support plate. A disassembly and assembly component is installed at one end of both the desorption tank 1 and the desorption tank 2. A conveying pipe is fixedly connected to the other end of the desorption tank 1. A discharge hopper is fixedly connected to the top of the conveying pipe. A discharge pipe is fixedly connected to the bottom of the desorption tank 2.

[0008] The conversion assembly includes a catalytic tower, which is fixedly connected to the top of the support plate. One end of the gas guide pipe, which is away from the desorption tank, is fixedly connected to the top of the catalytic tower. A fractionation tower is fixedly connected to the outside of the catalytic tower. An oil storage tank is fixedly connected to the bottom of the fractionation tower. An exhaust pipe is fixedly connected to the top of the fractionation tower.

[0009] As a further description of the above technical solution:

[0010] The disassembly and assembly assembly includes two connecting plates, which are respectively fixedly connected inside the first desorption tank and the second desorption tank. Two fixing blocks are fixedly connected to the outer side of each of the two connecting plates, and bolts are installed in the middle of each of the two fixing blocks.

[0011] As a further description of the above technical solution:

[0012] Motors are fixedly connected to the outer side of each connecting plate, and a rotating shaft is fixedly connected to the output end of each motor. Multiple stirring blades are fixedly connected to the outer side of the rotating shaft.

[0013] As a further description of the above technical solution:

[0014] The top of the desorption tank is fixedly connected to the gas guide pipe, and the end of the gas guide pipe away from the desorption tank is fixedly connected to the condenser. The bottom of the condenser is fixedly connected to the round pipe, and the bottom of the round pipe is fixedly connected to the oil storage tank.

[0015] As a further description of the above technical solution:

[0016] A feeding pipe is fixedly connected between the first desorption tank and the second desorption tank, and the feeding pipe is located in the middle of the support plate.

[0017] As a further description of the above technical solution:

[0018] A support block is fixedly connected to the top of the support plate, and the material conveying pipe is fixedly connected to the top of the support block;

[0019] As a further description of the above technical solution:

[0020] A valve one is installed on the outside of the conveying pipe, and a valve two is installed on the outside of the discharge pipe;

[0021] As a further description of the above technical solution:

[0022] Two handles are fixedly connected to the outside of the connecting plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the oil and gas separated by the first desorption tank can be purified and separated again through the conversion component. Under the action of the second desorption tank, the oily solid waste undergoes secondary thermal desorption, which further separates the oil and grease, ultimately resulting in higher purity of the recovered oil and lower oil content in the solid waste, thus achieving deep utilization of resources.

[0025] 2. In this utility model, the flexible disassembly and assembly of the stirring device are realized through the cooperation of the connecting plate, the fixing block and the bolts, which reduces the time spent on replacing parts, makes the replacement and maintenance of the stirring device more convenient, and also facilitates the cleaning of residues inside the desorption tank. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the thermal desorption and separation device for oily solid waste proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the oil storage tank 2 of the thermal desorption and separation device for oily solid waste proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the connecting plate of the thermal desorption and separation device for oily solid waste proposed in this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the stirring blades of the thermal desorption and separation device for oily solid waste proposed in this utility model.

[0031] Legend:

[0032] 1. Base plate; 2. Support plate; 3. Motor; 4. Desorption tank 1; 5. Gas guide pipe 1; 6. Catalytic tower; 7. Exhaust pipe; 8. Fractionating tower; 9. Oil storage tank 1; 10. Valve 1; 11. Discharge hopper; 12. Feed pipe; 13. Support block; 14. Support rod; 15. Desorption tank 2; 16. Heating device; 17. Fixing block; 18. Bolt; 19. Gas guide pipe 2; 20. Condenser; 21. Circular pipe; 22. Oil storage tank 2; 23. Valve 2; 24. Discharge pipe; 25. Handle; 26. Connecting plate; 27. Stirring blade; 28. Feed pipe; 29. ​​Rotating shaft. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an oily solid waste thermal desorption and separation device, comprising a base plate 1 and a support plate 2, which separate the upper and lower spaces. A heating device 16 is fixedly connected to the top of both the base plate 1 and the support plate 2. A desorption tank 4 and a desorption tank 2 15 are respectively fixedly connected to the top of the heating device 16. Both the desorption tank 4 and the desorption tank 2 15 heat the oily solid waste inside through the heating device 16. A gas guide pipe 5 is fixedly connected to the top of the desorption tank 4, and a conversion component is installed at the bottom of the gas guide pipe 5. The oil and gas generated after thermal desorption in the desorption tank 4 enters the conversion component through the gas guide pipe 5, where the conversion component further processes the oil and gas. Purification and separation: Multiple support rods 14 are fixedly connected between the bottom plate 1 and the support plate 2. The support rods 14 connect and support the bottom plate 1 and the support plate 2. Desorption tank 1 4 and desorption tank 2 15 are both equipped with disassembly and assembly components at one end. The stirring device inside the desorption tank 1 4 and desorption tank 2 15 can be quickly disassembled and installed through the disassembly and assembly components, which facilitates later replacement and maintenance. The other end of the desorption tank 1 4 is fixedly connected to the conveying pipe 12. The top of the conveying pipe 12 is fixedly connected to the discharge hopper 11. The oily solid waste enters the interior of the desorption tank 1 4 through the discharge hopper 11 and the conveying pipe 12. The bottom of the desorption tank 2 15 is fixedly connected to the discharge pipe 24. Finally, the oil after desorption is completed is discharged through the discharge pipe 24.

[0035] The conversion assembly includes a catalytic tower 6, which is fixedly connected to the top of the support plate 2. The catalytic tower 6 purifies the oil and gas discharged from the desorption tank 4, ultimately purifying it into harmless gas. The gas guide pipe 5 is fixedly connected to the top of the catalytic tower 6 at the end away from the desorption tank 4. A fractionation tower 8 is fixedly connected to the outside of the catalytic tower 6. The catalytic tower 6 and the fractionation tower 8 are connected by a pipe. An oil storage tank 9 is fixedly connected to the bottom of the fractionation tower 8. The oil and gas purified by the catalytic tower 6 enters the fractionation tower 8 through the pipe. The fractionation tower 8 then separates the gas from the oil in the oil and gas. The separated oil flows into the oil storage tank 9 for storage. An exhaust pipe 7 is fixedly connected to the top of the fractionation tower 8, through which the separated harmless gas is discharged.

[0036] Reference Figure 1 , Figure 4 and Figure 5The disassembly and assembly assembly includes two connecting plates 26, which are fixedly connected to the inside of desorption tank 1 4 and desorption tank 2 15, respectively. The purpose of disassembling and assembling the stirring device is achieved by disassembling and assembling the connecting plates 26. Two fixing blocks 17 are fixedly connected to the outside of each of the two connecting plates 26. Bolts 18 are installed in the middle of each of the two fixing blocks 17. With the help of the fixing blocks 17, the bolts 18 can be precisely positioned to ensure that their installation position is accurate. Motors 3 are fixedly connected to the outside of each of the two connecting plates 26. A rotating shaft 29 is fixedly connected to the output end of the motor 3. The rotating shaft 29 rotates under the drive of the motor 3. Multiple stirring blades 27 are fixedly connected to the outside of the rotating shaft 29. The stirring blades 27 rotate under the action of the rotating shaft 29 and stir the oily solid waste, so that the thermal desorption reaction is more complete and uniform, improving the oil vaporization efficiency, ensuring that the solid waste is heated evenly, and enhancing the separation effect.

[0037] Reference Figures 1-3 A gas guide pipe 19 is fixedly connected to the top of the desorption tank 15. A condenser 20 is fixedly connected to the end of the gas guide pipe 19 furthest from the desorption tank 15. The oil and gas generated inside the desorption tank 15 can stably enter the condenser 20 through the gas guide pipe 19, where they are condensed into liquid. A circular pipe 21 is fixedly connected to the bottom of the condenser 20, and an oil storage tank 22 is fixedly connected to the bottom of the circular pipe 21. Oil inside the condenser 20 is transferred to the oil storage tank 22 through the circular pipe 21. A feed pipe 28 is fixedly connected between the desorption tank 14 and the desorption tank 15. The oil-containing liquid inside the desorption tank 14 after the reaction is completed is fed through the feed pipe 28. Solid waste is fed into the desorption tank 15 for secondary thermal desorption. The feeding pipe 28 is located in the middle of the support plate 2. The support block 13 is fixedly connected to the top of the support plate 2. The conveying pipe 12 is fixedly connected to the top of the support block 13. The support block 13 supports the conveying pipe 12 to prevent it from tilting due to uneven force. A valve 10 is installed on the outside of the conveying pipe 12, and a valve 23 is installed on the outside of the discharge pipe 24. The opening and closing of the conveying pipe 12 and the discharge pipe 24 are controlled by the valves 10 and 23. Two handles 25 are fixedly connected to the outside of the connecting plate 26. The stirring device can be pulled out more conveniently and effortlessly through the handles 25.

[0038] Working principle: First, turn on the heating device 16 and put the oily solid waste into the conveying pipe 12 through the discharge hopper 11. The oily solid waste enters the desorption tank 4 through the conveying pipe 12. Then, turn on the motor 3 on the outside of the desorption tank 4. The rotating shaft 29 drives the stirring blade 27 to stir the oily solid waste under the action of the motor 3. Under the heating of the heating device 16 and the stirring of the stirring blade 27, the oily solid waste begins to undergo thermal desorption reaction. The oil and gas produced by the reaction will enter the catalytic tower 6 through the gas guide pipe 5. The catalytic tower 6 will purify the oil and gas. After purification, the oil and gas will be transferred to the fractionation tower 8 through the pipeline. The fractionation tower 8 will convert the oil and gas. The gas produced by the conversion will be discharged through the exhaust pipe 7. The oil produced by the conversion will flow into the bottom oil storage tank 9. At this time, the conversion of the gas produced by the desorption tank 4 is completed.

[0039] The oily solid waste in the first desorption tank 4 will flow into the second desorption tank 15 through the feeding pipe 28. Then, the heating device 16 at the bottom of the second desorption tank 15 and the motor 3 on the outside are turned on. The rotating shaft 29 inside the second desorption tank 15 drives the stirring blade 27 to rotate through the motor (3). At this time, the oily solid waste in the second desorption tank 15 is heated and desorbed for the second time. The oil and gas generated in the second desorption tank 15 are transmitted to the condenser 20 through the gas guide pipe 2 19. The condenser 20 condenses the oil and gas into liquid. The oil that has been condensed flows into the oil storage tank 22 at the bottom through the round pipe 21. The oil that has been reacted in the second desorption tank 15 is discharged through the discharge pipe 24.

[0040] When maintenance or replacement of the agitator and cleaning of the desorption tank are required, first turn the bolt 18 outward. When the bolt 18 separates from the desorption tank, pull the two handles 25 outward. Under the action of the handles 25, the connecting plate 26 drives the agitator to move outward gradually until it is removed from the desorption tank. At this time, the agitator can be maintained or replaced, or the inside of the desorption tank can be cleaned. The operation is simple and convenient.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal desorption and separation device for oily solid waste, comprising a bottom plate (1) and a support plate (2), characterized in that: Heating devices (16) are fixedly connected to the top of the base plate (1) and the support plate (2). Desorption tank 1 (4) and desorption tank 2 (15) are fixedly connected to the top of the heating device (16) respectively. A gas guide pipe 1 (5) is fixedly connected to the top of the desorption tank 1 (4). A conversion component is installed at the bottom of the gas guide pipe 1 (5). Multiple support rods (14) are fixedly connected between the base plate (1) and the support plate (2). A disassembly and assembly component is installed at one end of the desorption tank 1 (4) and the desorption tank 2 (15). A conveying pipe (12) is fixedly connected to the other end of the desorption tank 1 (4). A discharge hopper (11) is fixedly connected to the top of the conveying pipe (12). A discharge pipe (24) is fixedly connected to the bottom of the desorption tank 2 (15). The conversion assembly includes a catalytic tower (6), which is fixedly connected to the top of the support plate (2). One end of the gas guide pipe (5) away from the desorption tank (4) is fixedly connected to the top of the catalytic tower (6). A fractionation tower (8) is fixedly connected to the outside of the catalytic tower (6). An oil storage tank (9) is fixedly connected to the bottom of the fractionation tower (8). An exhaust pipe (7) is fixedly connected to the top of the fractionation tower (8).

2. The thermal desorption and separation device for oily solid waste according to claim 1, characterized in that: The disassembly and assembly assembly includes two connecting plates (26), which are fixedly connected to the inside of the first desorption tank (4) and the second desorption tank (15) respectively. Two fixing blocks (17) are fixedly connected to the outside of each of the two connecting plates (26), and bolts (18) are installed in the middle of each of the two fixing blocks (17).

3. The thermal desorption and separation device for oily solid waste according to claim 2, characterized in that: Motors (3) are fixedly connected to the outer sides of both connecting plates (26), and a rotating shaft (29) is fixedly connected to the output end of the motor (3). Multiple stirring blades (27) are fixedly connected to the outer side of the rotating shaft (29).

4. The thermal desorption and separation device for oily solid waste according to claim 1, characterized in that: The top of the desorption tank 2 (15) is fixedly connected to the gas guide pipe 2 (19), and the end of the gas guide pipe 2 (19) away from the desorption tank 2 (15) is fixedly connected to the condenser (20). The bottom of the condenser (20) is fixedly connected to the round pipe (21), and the bottom of the round pipe (21) is fixedly connected to the oil storage tank 2 (22).

5. The thermal desorption and separation device for oily solid waste according to claim 1, characterized in that: A feeding pipe (28) is fixedly connected between the first desorption tank (4) and the second desorption tank (15), and the feeding pipe (28) is located in the middle of the support plate (2).

6. The thermal desorption and separation device for oily solid waste according to claim 2, characterized in that: The support plate (2) is fixedly connected to the top of the support block (13), and the material conveying pipe (12) is fixedly connected to the top of the support block (13).

7. The thermal desorption and separation device for oily solid waste according to claim 1, characterized in that: A valve (10) is installed on the outside of the conveying pipe (12), and a valve (23) is installed on the outside of the discharge pipe (24).

8. The thermal desorption and separation device for oily solid waste according to claim 3, characterized in that: Two handles (25) are fixedly connected to the outside of the connecting plate (26).

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