A waste mineral oil storage device

Abstract

A waste mineral oil storage device, relating to the field of mineral oil production and processing, includes an outer tank shell and an inner tank shell. The inner tank shell is located inside the outer tank shell. Side wall gaskets and a bottom gasket are provided between the outer and inner tank shells. Ventilation holes are provided through the side wall gaskets vertically. An air exchange hole is provided at the top edge of the inner tank shell. An exhaust pump is located at the top of the outer tank shell, and an intake pump is located at the bottom. The tops of both the outer and inner tank shells share a common opening. This invention provides dual protection through the outer and inner tank shells to prevent internal damage or leakage. The side wall and bottom gaskets provide cushioning and support between the outer and inner tank shells. The air exchange hole at the top of the inner tank allows for timely evaporation of internal gases, and the intake and exhaust pumps on the outer tank shell promptly transfer the evaporated gases out, preventing gas accumulation and ensuring the safe use of the tank.

Description

Technical Field

[0001] This utility model relates to the field of mineral oil production and processing technology, and in particular to a waste mineral oil storage device. Background Technology

[0002] Mineral oil production begins with crude oil extraction. After extraction, the crude oil is transported via pipeline to refineries, where it undergoes atmospheric and vacuum distillation to separate light fractions such as gasoline and diesel. The remaining heavy fractions then undergo further processing, including catalytic cracking and hydrorefining, to remove impurities such as sulfur and nitrogen and adjust their molecular structure, ultimately yielding various mineral oil products such as lubricating oil, hydraulic oil, and transformer oil. During the reprocessing of waste mineral oil, which becomes waste due to high-temperature oxidation, the introduction of mechanical impurities, and additive failure, reprocessing requires first removing large particles through sedimentation, then separating sludge and base oil through solvent extraction, and finally purifying by distillation to obtain recycled base oil that can be reused in mineral oil production, thus achieving resource recycling. However, existing waste mineral oil storage mainly uses ordinary sealed containers. The light components remaining in waste mineral oil are prone to volatilize and generate gas during storage, which leads to increased pressure inside the container and gas expansion. Ordinary sealed containers are difficult to balance the pressure inside the container, which can not prevent the leakage of volatiles and environmental pollution, and also poses a safety hazard of container rupture due to excessive pressure. Therefore, the safety and stability of the storage process cannot be guaranteed. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to provide a waste mineral oil storage device that ensures effective ventilation of volatile gases inside the oil tank and guarantees the safety of the oil tank.

[0005] To achieve the above objectives, this utility model proposes a waste mineral oil storage device, comprising an outer shell and an inner shell. The inner shell is disposed inside the outer shell. A side wall gasket and a bottom gasket are provided between the outer shell and the inner shell. The side wall gasket has ventilation holes extending vertically. The top edge of the inner shell has ventilation holes. An exhaust pump is provided at the top of the outer shell, and an intake pump is provided at the bottom. The tops of both the outer and inner shells have a common tank opening.

[0006] Furthermore, a rotating head is rotatably installed at the bottom of the inner shell of the oil tank. The rotating head has an internal hollow structure and an oil inlet and outlet on its surface. An oil suction pipe is installed at the top of the rotating head, and the oil suction pipe is connected to the oil inlet and outlet.

[0007] Furthermore, the edge portion of the rotating head is provided with cleaning blades, which are L-shaped, with the horizontal edge of the cleaning blades close to the bottom wall of the inner shell of the oil tank and the vertical edge of the cleaning blades close to the side wall of the inner shell of the oil tank.

[0008] Furthermore, a plug is provided at the top of the oil tank opening, and a sealing gasket is provided at the bottom of the plug. The sealing gasket is adapted to and engages with the top of the oil suction pipe.

[0009] Furthermore, the inner wall of the top end of the oil suction pipe is provided with an internal hexagonal groove, the bottom of the inner shell of the oil tank is provided with a rotating shaft, and the bottom of the rotating head is provided with a rotating groove that is compatible with the rotating shaft.

[0010] Furthermore, a hollow cavity is provided between the outer shell and the inner shell of the fuel tank, the side wall gasket is disposed on the vertical surface of the hollow cavity, and the bottom gasket is disposed at the bottom of the hollow cavity. Both the side wall gasket and the bottom gasket include elastic gaskets.

[0011] Beneficial effects: This utility model provides double protection through the outer shell and inner shell of the fuel tank to prevent damage or leakage inside the fuel tank. The outer shell and inner shell of the fuel tank are provided with buffer support by side wall gaskets and bottom gaskets to reduce the impact of external forces on the inside of the fuel tank during use. In addition, the top of the inner shell of the fuel tank has a vent to release the gas inside in time, and the intake pump and exhaust pump on the outer shell of the fuel tank can transfer the gas in time to prevent gas accumulation and ensure the safe use of the fuel tank.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of a waste mineral oil storage device according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a waste mineral oil storage device according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the rotating head in a waste mineral oil storage device according to an embodiment of the present invention.

[0014] As shown in the figure: 1. Fuel tank outer shell; 2. Fuel tank inner shell; 21. Vent hole; 22. Rotating shaft; 3. Hollow cavity; 31. Side wall gasket; 32. Vent hole; 4. Fuel tank opening; 41. Plug; 42. Sealing gasket; 5. Exhaust pump; 51. Exhaust pipe; 6. Oil suction pipe; 61. Rotating head; 62. Oil inlet and outlet; 63. Socket hexagonal groove; 7. Cleaning blade; 8. Bottom gasket; 9. Air intake pump; 91. Air intake pipe. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0016] The waste mineral oil storage device of this utility model embodiment will now be described with reference to the accompanying drawings.

[0017] like Figures 1-3 As shown, the waste mineral oil storage device provided in this embodiment of the present invention includes an outer shell 1 and an inner shell 2. The inner shell 2 is disposed inside the outer shell 1. A side wall gasket 31 and a bottom gasket 8 are provided between the outer shell 1 and the inner shell 2. The side wall gasket 31 has ventilation holes 32 extending through it vertically. A ventilation hole 21 is provided at the top edge of the inner shell 2. An exhaust pump 5 is provided at the top of the outer shell 1, and an intake pump 9 is provided at the bottom of the outer shell 1. The tops of the outer shell 1 and the inner shell 2 are both provided with an oil tank opening 4.

[0018] Specifically, when the waste mineral oil storage device of this application is in use, waste mineral oil is injected or extracted through the oil tank opening 4. In addition, the waste mineral oil storage device of this application provides double protection through the outer shell 1 and the inner shell 2 of the oil tank to prevent damage or leakage inside the oil tank. The outer shell 1 and the inner shell 2 of the oil tank are provided with buffer support by side wall gaskets 31 and bottom gaskets 8 to reduce the impact of external forces on the inside of the oil tank during use.

[0019] When the waste mineral oil inside the inner shell 2 of the fuel tank evaporates, the gas accumulated inside the inner shell 2 is promptly evaporated through the ventilation hole 21 at the top of the inner shell 2. The gas then enters the space between the outer shell 1 and the inner shell 2 of the fuel tank. After a period of time, the gas is sent in and out through the air intake pump 9 and the exhaust pump 5 on the outer shell 1 of the fuel tank, so as to promptly transfer the gas evaporated in the inner shell 2 of the fuel tank, prevent the gas from accumulating, and ensure the safe use of the fuel tank.

[0020] In one embodiment of this utility model, such as Figure 2 and Figure 3As shown, a rotating head 61 is rotatably mounted on the bottom of the inner shell 2 of the oil tank. The rotating head 61 has a hollow internal structure and an oil inlet / outlet 62 on its surface. An oil suction pipe 6 is mounted on the top of the rotating head 61, and the oil suction pipe 6 is connected to the oil inlet / outlet 62. A plug 41 is mounted on the top of the oil tank opening 4, and a sealing gasket 42 is mounted on the bottom of the plug 41. The sealing gasket 42 is fitted and engaged with the top of the oil suction pipe 6.

[0021] Specifically, when injecting or extracting waste mineral oil into the inner shell 2 of the oil tank, a suction pipe 6 is connected via a pipeline. The suction pipe 6 is connected to a rotating head 61. The inlet and outlet ports 62 at the bottom of the rotating head 61 can directly output the oil from the bottom of the inner shell 2 of the oil tank upwards, so that the oil in the inner shell 2 of the oil tank is more thoroughly emptied during the oil extraction process. After the waste mineral oil is injected or extracted, the oil tank opening 4 is sealed with a plug 41. The sealing gasket 42 at the bottom of the plug 41 seals the top of the suction pipe 6 to prevent the waste mineral oil in the inner shell 2 of the oil tank from overflowing.

[0022] In one embodiment of this utility model, such as Figure 2 As shown, the edge of the rotating head 61 is provided with cleaning blades 7. The cleaning blades 7 have an L-shaped structure, and the horizontal side of the cleaning blades 7 is close to the bottom wall of the inner shell 2 of the oil tank, and the vertical side of the cleaning blades 7 is close to the side wall of the inner shell 2 of the oil tank.

[0023] The inner wall of the top of the oil suction pipe 6 is provided with an internal hexagonal groove 63, the bottom of the inner shell 2 of the oil tank is provided with a rotating shaft 22, and the bottom of the rotating head 61 is provided with a rotating groove that is compatible with the rotating shaft 22.

[0024] Specifically, the waste mineral oil in the inner shell 2 of the oil tank will precipitate after a certain period of time. The precipitate will adhere to the inner wall of the inner shell 2 of the oil tank, especially the bottom wall. When pumping oil, an Allen wrench is inserted into the Allen groove 63 at the top of the suction pipe 6, which drives the cleaning blade 7 to rotate. The horizontal edge of the cleaning blade 7 scrapes the bottom wall of the inner shell 2 of the oil tank, and the vertical edge of the cleaning blade 7 scrapes the side wall of the inner shell 2 of the oil tank, so that the precipitate in the inner shell 2 of the oil tank mixes with the mineral oil again, reducing the residual sludge in the inner shell 2 of the oil tank.

[0025] In one embodiment of this utility model, such as Figure 2 As shown, an intake pipe 91 is provided on the intake pump 9, an exhaust pipe 51 is provided on the exhaust pump 5, a hollow cavity 3 is provided between the outer shell 1 and the inner shell 2 of the fuel tank, a side wall gasket 31 is provided on the vertical surface of the hollow cavity 3, and a bottom gasket 8 is provided at the bottom of the hollow cavity 3. Both the side wall gasket 31 and the bottom gasket 8 include elastic gaskets.

[0026] Specifically, the side wall gasket 31 and the bottom gasket 8 provide cushioning support for the inner shell 2 of the fuel tank to prevent direct collision with the inner shell 2 of the fuel tank during transportation. In addition, the side wall gasket 31 and the bottom gasket 8 form a hollow cavity 3 between the outer shell 1 of the fuel tank and the inner shell 2 of the fuel tank, which is conducive to the air pump 9 to fully mix the gas into the hollow cavity 3, drive the volatile gas in the hollow cavity 3 upward and discharge it from the exhaust pump 5, thereby reducing the potential risk of volatile gas accumulation in the hollow cavity 3.

[0027] To clearly illustrate the above embodiments, refer to Figures 1-3 The specific working principle of the waste mineral oil storage device of this utility model is as follows: During use, waste mineral oil is injected or extracted through the suction pipe 6 in the oil tank opening 4. During this process, the oil supply pipeline is connected to the suction pipe 6, which in turn is connected to a rotating head 61. The inlet / outlet 62 at the bottom of the rotating head 61 can directly discharge oil from the bottom of the inner tank shell 2 into the inner tank shell 2, or output oil from the inner tank shell 2 upwards. The inlet / outlet 62 ensures that the oil in the inner tank shell 2 is more thoroughly emptied during the extraction process. After the waste mineral oil is injected or extracted, the oil tank opening 4 is sealed with a plug 41. The sealing gasket 42 at the bottom of the plug 41 seals the top of the suction pipe 6, preventing the waste mineral oil in the inner tank shell 2 from overflowing.

[0028] In addition, during the oil extraction process, the waste mineral oil in the inner shell 2 of the oil tank will precipitate after a certain period of time. The precipitate will adhere to the inner wall of the inner shell 2 of the oil tank, especially the bottom wall. When the oil is extracted, the internal hexagonal groove 63 at the top of the suction pipe 6 is inserted with an internal hexagonal wrench, which drives the cleaning blade 7 to rotate. The horizontal edge of the cleaning blade 7 scrapes the bottom wall of the inner shell 2 of the oil tank, and the vertical edge of the cleaning blade 7 scrapes the side wall of the inner shell 2 of the oil tank, so that the precipitate in the inner shell 2 of the oil tank mixes with the mineral oil again, reducing the residual sludge in the inner shell 2 of the oil tank.

[0029] When the waste mineral oil inside the inner shell 2 of the fuel tank evaporates, the gas accumulated inside the top of the inner shell 2 is promptly evaporated through the ventilation hole 21. The gas then enters the hollow cavity 3 between the outer shell 1 and the inner shell 2 of the fuel tank. After a period of time, the gas is sent in and out through the air intake pump 9 and the exhaust pump 5 on the outer shell 1 of the fuel tank, so as to promptly transfer the evaporated gas out, prevent the gas from accumulating, and ensure the safe use of the fuel tank.

[0030] In addition, this application provides double protection through the outer shell 1 and the inner shell 2 of the fuel tank to prevent damage or leakage inside the fuel tank. The outer shell 1 and the inner shell 2 of the fuel tank are provided with buffer support by side wall gaskets 31 and bottom gaskets 8 to reduce the impact of external forces on the inside of the fuel tank during use.

[0031] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A waste mineral oil storage device, characterized by, The tank includes an outer shell (1) and an inner shell (2). The inner shell (2) is located inside the outer shell (1). A side wall gasket (31) and a bottom gasket (8) are provided between the outer shell (1) and the inner shell (2). The side wall gasket (31) has a vent hole (32) extending through it vertically. The inner shell (2) has a ventilation hole (21) at the top edge. An exhaust pump (5) is provided at the top of the outer shell (1). An air intake pump (9) is provided at the bottom of the outer shell (1). The top of the outer shell (1) and the inner shell (2) are both provided with a tank opening (4).

2. The waste mineral oil storage device of claim 1, wherein, The bottom of the inner shell (2) of the oil tank is provided with a rotating head (61). The rotating head (61) has an internal hollow structure and an oil inlet / outlet (62) is provided on its surface. The top of the rotating head (61) is provided with an oil suction pipe (6), which is connected to the oil inlet / outlet (62).

3. The waste mineral oil storage device of claim 2, wherein, The edge of the rotating head (61) is provided with cleaning blades (7). The cleaning blades (7) are L-shaped, and the horizontal side of the cleaning blades (7) is close to the bottom wall of the inner shell (2) of the oil tank, and the vertical side of the cleaning blades (7) is close to the side wall of the inner shell (2) of the oil tank.

4. The waste mineral oil storage device of claim 2, wherein, A plug (41) is provided at the top of the oil tank opening (4), and a sealing gasket (42) is provided at the bottom of the plug (41). The sealing gasket (42) is adapted to and engaged with the top of the oil suction pipe (6).

5. The waste mineral oil storage device of claim 2, wherein, The inner wall of the top end of the oil suction pipe (6) is provided with an internal hexagonal groove (63), the bottom of the inner shell of the oil tank (2) is provided with a rotating shaft (22), and the bottom of the rotating head (61) is provided with a rotating groove that is compatible with the rotating shaft (22).

6. The waste mineral oil storage device of claim 1, wherein, A hollow cavity (3) is provided between the outer shell (1) and the inner shell (2) of the oil tank. The side wall gasket (31) is provided on the vertical surface of the hollow cavity (3). The bottom gasket (8) is provided at the bottom of the hollow cavity (3). Both the side wall gasket (31) and the bottom gasket (8) include elastic gaskets.

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