Waste mineral oil pyrolysis device

Abstract

The utility model discloses a waste mineral oil pyrolysis device and relates to the technical field of petroleum, coal gas and coking industries. The waste mineral oil pyrolysis device comprises a pyrolysis reaction kettle, and a protective cover is fixedly mounted on the outer surface of the pyrolysis reaction kettle; the pyrolysis reaction kettle is provided with a gas filtering structure, the gas filtering structure comprises a Venturi wet washer, an exhaust fan, a connecting pipe, a communicating pipe and a filtering box, the exhaust fan is fixedly mounted on the outer surface of the protective cover, and through cooperation of the connecting pipe, the exhaust fan, the Venturi wet washer, the filtering box, the communicating pipe and an activated carbon filtering plate, the gas can be filtered out through the gas filtering structure. The venturi wet scrubber can filter and purify harmful gas, the filtered gas is discharged into the filter box through the communicating pipe, the activated carbon filter plate can adsorb residual peculiar smell in the gas, and the situation that the gas directly and seriously affects the atmosphere quality and the ecological environment is avoided; and the environmental protection property of pyrolysis of the waste mineral oil is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum, coal gas and coking industry, in particular to a waste mineral oil pyrolysis device. Background Art

[0002] Waste mineral oil is the oil that is replaced when it can no longer be used due to contamination by impurities, oxidation and heat, which changes its original physical and chemical properties. It mainly comes from the sludge and oil footings produced by oil extraction and refining. Waste mineral oil contains a high content of oil sludge; sediments produced during the storage of mineral oils; oil residues and filter media during the replacement and regeneration of machinery, power, transportation and other equipment.

[0003] The current pyrolysis technology is an effective method for treating waste mineral oil. It uses high-temperature heating to crack the organic matter in the oil into small molecular substances, thereby achieving the reduction and resource utilization of oil sludge. However, during the pyrolysis process of waste mineral oil, a large amount of harmful gases will be produced. If these gases are directly discharged into the environment, they will have a serious impact on the air quality and ecological environment. Therefore, we propose a waste mineral oil pyrolysis device. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a waste mineral oil pyrolysis device that can solve the problem that a large amount of harmful gases will be generated during the pyrolysis process of waste mineral oil. If these gases are directly discharged into the environment, they will have a serious impact on the air quality and the ecological environment.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a waste mineral oil pyrolysis device, comprising:

[0006] The pyrolysis reactor has a protective cover fixedly installed on its outer surface; a gas filtering structure is provided on the pyrolysis reactor;

[0007] The gas filtration structure includes a Venturi wet scrubber, an exhaust fan, a connecting pipe, a communicating pipe and a filter box. The exhaust fan is fixedly mounted on the outer surface of the protective cover, one end of the exhaust fan is connected to the interior of the Venturi wet scrubber, the end of the exhaust fan away from the Venturi wet scrubber is fixedly connected to the connecting pipe, the end of the connecting pipe away from the exhaust fan is connected to the interior of the pyrolysis reactor, the filter box is fixedly connected to the outer surface of the Venturi wet scrubber, one end of the communicating pipe is connected to the interior of the Venturi wet scrubber, and the end of the communicating pipe away from the Venturi wet scrubber is connected to the interior of the filter box.

[0008] Preferably, the gas filtration structure further includes an activated carbon filter plate and an exhaust pipe. The activated carbon filter plate is slidably mounted inside the filter box. The exhaust pipe is fixedly connected to a side of the filter box away from the venturi wet scrubber. The exhaust pipe is connected to the interior of the filter box.

[0009] Preferably, a driving motor is fixedly installed on the top of the pyrolysis reactor, and the output end of the driving motor rotates through the top of the pyrolysis reactor and is fixedly connected to a rotating shaft, and a plurality of stirring rods are fixedly connected to the outer surface of the rotating shaft.

[0010] Preferably, a cleaning scraper is fixedly connected to the outer surface of the rotating shaft, and the cleaning scraper is in contact with the inner wall of the pyrolysis reactor.

[0011] Preferably, a heating pipe is fixedly installed on the outer surface of the pyrolysis reactor, and the heating pipe is located inside the protective cover.

[0012] Preferably, a pressure gauge is fixedly installed on the top of the pyrolysis reactor, and a feed pipe communicating with the interior of the pyrolysis reactor is fixedly connected to the top of the pyrolysis reactor.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The waste mineral oil pyrolysis device, through the cooperation of the connecting pipe, exhaust fan, Venturi wet scrubber, filter box, connecting pipe and activated carbon filter plate, enables the Venturi wet scrubber to filter and purify harmful gases, and the filtered gas is discharged into the filter box through the connecting pipe, so that the activated carbon filter plate can adsorb the residual odor in the gas, avoiding the gas directly causing serious impact on the air quality and ecological environment, and further improving the environmental protection of the waste mineral oil pyrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the Venturi wet scrubber of the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the pyrolysis reactor of the present invention;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter box of the present invention.

[0020] Figure numerals: 1. Pyrolysis reactor; 2. Protective cover; 3. Heating tube; 4. Feed pipe; 5. Drive motor; 6. Pressure gauge; 7. Connecting pipe; 8. Venturi wet scrubber; 9. Filter box; 10. Connecting pipe; 11. Exhaust fan; 12. Activated carbon filter plate; 13. Rotating shaft; 14. Cleaning scraper; 15. Stirring rod; 16. Exhaust pipe. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] See also Figure 1-4 The utility model provides a technical solution: a waste mineral oil pyrolysis device, comprising:

[0026] The pyrolysis reactor 1 has a protective cover 2 fixedly mounted on its outer surface; the pyrolysis reactor 1 is provided with a gas filtering structure;

[0027] The gas filtration structure includes a Venturi wet scrubber 8, an exhaust fan 11, a connecting pipe 7, a connecting pipe 10 and a filter box 9. The exhaust fan 11 is fixedly mounted on the outer surface of the protective cover 2, one end of the exhaust fan 11 is connected to the interior of the Venturi wet scrubber 8, the end of the exhaust fan 11 away from the Venturi wet scrubber 8 is fixedly connected to the connecting pipe 7, the end of the connecting pipe 7 away from the exhaust fan 11 is connected to the interior of the pyrolysis reactor 1, the filter box 9 is fixedly connected to the outer surface of the Venturi wet scrubber 8, one end of the connecting pipe 10 is connected to the interior of the Venturi wet scrubber 8, and the end of the connecting pipe 10 away from the Venturi wet scrubber 8 is connected to the interior of the filter box 9.

[0028] The gas filtration structure also includes an activated carbon filter plate 12 and an exhaust pipe 16. The activated carbon filter plate 12 is slidably installed inside the filter box 9. The exhaust pipe 16 is fixedly connected to the side of the filter box 9 away from the venturi wet scrubber 8. The exhaust pipe 16 is connected to the interior of the filter box 9. A drive motor 5 is fixedly installed on the top of the pyrolysis reactor 1. The output end of the drive motor 5 rotates through the top of the pyrolysis reactor 1 and is fixedly connected to a rotating shaft 13. A plurality of stirring rods 15 are fixedly connected to the outer surface of the rotating shaft 13. A cleaning scraper 14 is fixedly connected to the outer surface of the rotating shaft 13. The cleaning scraper 14 contacts the inner wall of the pyrolysis reactor 1.

[0029] A heating tube 3 is fixedly installed on the outer surface of the pyrolysis reactor 1, and the heating tube 3 is located inside the protective cover 2. A pressure gauge 6 is fixedly installed on the top of the pyrolysis reactor 1, and a feed pipe 4 communicating with the interior of the pyrolysis reactor 1 is fixedly connected to the top of the pyrolysis reactor 1.

[0030] Furthermore, when using the device, the drive motor 5 is started by connecting an external power supply, and the drive motor 5 drives the rotating shaft 13 to rotate. The rotation of the rotating shaft 13 will drive multiple stirring rods 15 to stir the waste mineral oil in the pyrolysis reactor 1, and the rotation of the rotating shaft 13 will drive the cleaning scraper 14 to scrape off the waste mineral oil attached to the inner wall of the pyrolysis reactor 1. The heating tube 3 is started by connecting an external power supply, so that the heating tube 3 can heat the inside of the pyrolysis reactor 1. The exhaust fan 11 is started by connecting an external power supply, and the exhaust fan 11 can extract the harmful gas from the waste mineral oil pyrolysis tank through the connecting pipe 7, thereby facilitating the exhaust of the extracted harmful gas into the Venturi wet scrubber 8, so that the Venturi wet scrubber 8 can filter and purify the harmful gas. Subsequently, the filtered gas is discharged into the filter box 9 through the connecting pipe 10, so that the activated carbon filter plate 12 can adsorb the residual odor in the gas.

[0031] Through the cooperation of the connecting pipe 7, the exhaust fan 11, the Venturi wet scrubber 8, the filter box 9, the connecting pipe 10 and the activated carbon filter plate 12, the Venturi wet scrubber 8 can filter and purify the harmful gas, and the filtered gas is discharged into the filter box 9 through the connecting pipe 10, so that the activated carbon filter plate 12 can adsorb the residual odor in the gas, avoiding the gas directly causing serious impact on the air quality and the ecological environment, and further improving the environmental protection of the waste mineral oil pyrolysis.

[0032] Working principle: By connecting an external power source to start the exhaust fan 11, the exhaust fan 11 can extract the harmful gas generated in the waste mineral oil pyrolysis tank through the connecting pipe 7, thereby facilitating the extraction of the harmful gas into the venturi wet scrubber 8, so that the venturi wet scrubber 8 can filter and purify the harmful gas. Subsequently, the filtered gas is discharged into the filter box 9 through the connecting pipe 10, so that the activated carbon filter plate 12 can adsorb the residual odor in the gas.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A waste mineral oil pyrolysis device, characterized in that: include: A pyrolysis reactor (1), wherein a protective cover (2) is fixedly installed on the outer surface of the pyrolysis reactor (1); a gas filtering structure is provided on the pyrolysis reactor (1); The gas filtering structure comprises a venturi wet scrubber (8), an exhaust fan (11), a connecting pipe (7), a communicating pipe (10) and a filter box (9), wherein the exhaust fan (11) is fixedly mounted on the outer surface of the protective cover (2), and one end of the exhaust fan (11) is communicated with the interior of the venturi wet scrubber (8); wherein one end of the exhaust fan (11) away from the venturi wet scrubber (8) is fixedly connected to the connecting pipe (7), one end of the connecting pipe (7) away from the exhaust fan (11) is in communication with the interior of the pyrolysis reactor (1), and the filter box (9) is fixedly connected to the outer surface of the venturi wet scrubber (8); One end of the connecting pipe (10) is connected to the interior of the venturi wet scrubber (8), and the end of the connecting pipe (10) away from the venturi wet scrubber (8) is connected to the interior of the filter box (9).

2. The waste mineral oil pyrolysis device according to claim 1, characterized in that: The gas filtering structure further comprises an activated carbon filter plate (12) and an exhaust pipe (16), wherein the activated carbon filter plate (12) is slidably mounted inside the filter box (9); The exhaust pipe (16) is fixedly connected to a side of the filter box (9) away from the venturi wet scrubber (8), and the exhaust pipe (16) is communicated with the interior of the filter box (9).

3. The waste mineral oil pyrolysis device according to claim 1, characterized in that: A driving motor (5) is fixedly installed on the top of the pyrolysis reactor (1); the output end of the driving motor (5) rotates through the top of the pyrolysis reactor (1) and is fixedly connected to a rotating shaft (13); and a plurality of stirring rods (15) are fixedly connected to the outer surface of the rotating shaft (13).

4. The waste mineral oil pyrolysis device according to claim 3, characterized in that: A cleaning scraper (14) is fixedly connected to the outer surface of the rotating shaft (13), and the cleaning scraper (14) is in contact with the inner wall of the pyrolysis reactor (1).

5. The waste mineral oil pyrolysis device according to claim 1, characterized in that: A heating pipe (3) is fixedly mounted on the outer surface of the pyrolysis reactor (1), and the heating pipe (3) is located inside the protective cover (2).

6. The waste mineral oil pyrolysis device according to claim 1, characterized in that: A pressure gauge (6) is fixedly installed on the top of the pyrolysis reactor (1), and a feed pipe (4) communicating with the interior of the pyrolysis reactor (1) is fixedly connected to the top of the pyrolysis reactor (1).

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