Shale oil refining tail gas filter

Abstract

The utility model discloses a shale oil refining tail gas filter, which belongs to the technical field of shale oil refining and comprises a shell, a gas inlet pipe is arranged on one side of the shell, a gas outlet pipe is arranged on the other side of the shell, an oil baffle mechanism is arranged at the bottom of the shell, and a conical oil storage tank is arranged at the bottom of the shell. An oil storage mechanism is arranged on the outer side of the bottom end of the shell, a supporting ring is arranged on the inner wall of the shell, and a stainless steel wire filter element is placed on the top face of the supporting ring and located in an inner cavity of the shell. According to the utility model, the stainless steel wire filter element in the shell is used for filtering oil liquid in tail gas, the servo motor is used for driving the scraping plate to rotate, and the scraping plate is used for scraping the bottom surface of the stainless steel wire filter element, so that the oil liquid filtered from the bottom surface of the stainless steel wire filter element is cleaned; the oil liquid is prevented from blocking the stainless steel wire filter element to influence the filtering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of shale oil refining, and more specifically, to a shale oil refining tail gas filter. Background Art

[0002] Shale oil refers to the oil resources contained in shale formations dominated by shale, including oil in the pores and cracks of mudstone, as well as oil resources in the adjacent layers and interlayers of dense carbonate or clastic rocks in the mudstone formations. Shale oil needs to be refined after it is mined. During the refining process, tail gas will be produced. The tail gas contains a certain amount of shale oil, which needs to be filtered out.

[0003] After searching, the utility model patent with announcement number CN201020324Y discloses a new oil shale refinery tail gas filter, in which the filter element for filtering the oil-containing tail gas and the oil reservoir are arranged in the same housing, the upper part is the filter element, the lower part is the oil reservoir, and the middle is separated by a filter screen; oil recovery filtration is carried out in the oil shale refinery tail gas, which can effectively filter the oil shale refinery tail gas, so that the discharged oil shale refinery tail gas meets the use requirements of the gas engine, and at the same time, the oil in the oil shale refinery tail gas can be effectively recovered; the stainless steel wire filter element used can be replaced once every one to one and a half years, and the replaced filter element can continue to be used for many times after cleaning; the oil filtered by the filter element is stored in the oil reservoir, which will not cause the filter to be blocked, and the oil in the tail gas can be more effectively recovered.

[0004] However, the above patents still have the following shortcomings: the oil has a certain viscosity, and after being filtered by the filter element, the bottom of the filter element is easily attached to the oil, affecting the subsequent filtration; and the filtered oil stored in the oil reservoir is easily carried away by the exhaust gas that enters later, making it inconvenient to automatically discharge the oil. For this reason, we propose a shale refinery exhaust gas filter. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a shale refinery tail gas filter.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A shale refinery exhaust gas filter comprises a shell, one side of the shell is provided with an air inlet pipe, the other side of the shell is provided with an air outlet pipe, the bottom of the shell is provided with an oil baffle mechanism, the bottom of the shell is provided with a conical oil storage tank, the outer side of the bottom end of the shell is provided with an oil storage mechanism, the inner wall of the shell is provided with a support ring, the top surface of the support ring and the inner cavity of the shell are provided with a stainless steel wire filter element, the top of the shell is threadedly installed with a top cover, the inner wall of the shell is fixedly connected with a support plate, the bottom surface of the support plate is fixedly installed with a servo motor, the output shaft of the servo motor extends to the top of the support plate and is fixedly connected with a scraper, the top surface of the scraper is in contact with the bottom surface of the stainless steel wire filter element, and the bottom surface of the support plate and the outer side of the servo motor are fixedly connected with a protective shell.

[0008] As a preferred solution of the utility model, the oil baffle mechanism includes a spring hinge fixedly installed on the bottom surface of the outer shell, the end of the spring hinge is fixedly connected with a lower sealing plate, the top surface of the lower sealing plate is in contact with the bottom surface of the outer shell, and the lower sealing plate is located below the conical oil storage tank.

[0009] As a preferred solution of the utility model, the oil storage mechanism includes an oil storage tank fixedly sleeved on the outside of the outer shell, an air vent is opened on the top surface of the oil storage tank, a filter is provided on the inner wall of the air vent, an oil drain valve is fixedly installed at the end of the oil storage tank, and the end of the oil drain valve extends to the inner cavity of the oil storage tank.

[0010] As a preferred solution of the utility model, flanges are fixedly sleeved on the ends of the air inlet pipe and the air outlet pipe respectively.

[0011] As a preferred solution of the utility model, the side surface of the stainless steel wire filter element is in contact with the inner wall of the shell.

[0012] As a preferred solution of the utility model, a perspective plate is sleeved on the outer side of the oil storage tank, and a controller is fixedly installed on the outer side of the oil storage tank.

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

[0014] (1) In the utility model, the stainless steel wire filter element in the housing is used to filter the oil in the exhaust gas, and the servo motor is used to drive the scraper to rotate, and the scraper is used to scrape the bottom surface of the stainless steel wire filter element, so as to clean up the oil filtered from the bottom surface of the stainless steel wire filter element, so as to avoid the oil clogging the stainless steel wire filter element and affecting the filtering effect.

[0015] (2) In the utility model, a conical oil storage tank is used to temporarily store the filtered and cleaned oil. When the weight of the oil in the conical oil storage tank reaches a certain amount, the weight of the oil is used to drive the lower sealing plate to rotate so that the oil can be discharged into the oil storage tank in time, thereby avoiding the problem that the filtered oil stored in the oil storage device is easily carried away by the exhaust gas entering later. The filtered oil is stored in the oil storage tank for a long time, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a cross-sectional schematic diagram of the housing of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the housing of the utility model;

[0019] Figure 4 It is a schematic diagram of the interior of the housing of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the oil storage tank of the utility model;

[0021] Figure 6 For this utility model Figure 2 A is an enlarged schematic diagram.

[0022] Description of the numbers in the figure:

[0023] 1. Outer shell; 2. Oil storage mechanism; 3. Inlet pipe; 4. Outlet pipe; 5. Support ring; 6. Stainless steel wire filter element; 7. Support plate; 8. Protective shell; 9. Servo motor; 10. Scraper; 11. Conical oil storage tank; 12. Oil baffle mechanism; 13. Spring hinge; 14. Lower sealing plate; 15. Oil storage tank; 16. Air vent; 17. Filter screen; 18. See-through plate; 19. Oil drain valve; 20. Controller; 21. Top cover; 22. Flange. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example:

[0028] See also Figure 1-6 A shale refinery tail gas filter comprises a shell 1, one side of the shell 1 is provided with an air inlet pipe 3, the other side of the shell 1 is provided with an air outlet pipe 4, the bottom of the shell 1 is provided with an oil baffle mechanism 12, the bottom of the shell 1 is provided with a conical oil storage tank 11, the outer side of the bottom end of the shell 1 is provided with an oil storage mechanism 2, the inner wall of the shell 1 is provided with a support ring 5, the top surface of the support ring 5 and the inner cavity of the shell 1 are provided with a stainless steel wire filter element 6, the top of the shell 1 is threadedly installed with a top cover 21, the inner wall of the shell 1 is fixedly connected with a support plate 7, the bottom surface of the support plate 7 is fixedly installed with a servo motor 9, the output shaft of the servo motor 9 extends to the top of the support plate 7 and is fixedly connected with a scraper 10, the top surface of the scraper 10 is in contact with the bottom surface of the stainless steel wire filter element 6, and the bottom surface of the support plate 7 and the outer side of the servo motor 9 are fixedly connected with a protective shell 8.

[0029] In this embodiment, the stainless steel wire filter element 6 can be replaced by removing the top cover 21 , and the stainless steel wire filter element 6 is supported by the support ring 5 .

[0030] For details, please refer to Figure 3 The oil retaining mechanism 12 includes a spring hinge 13 fixedly mounted on the bottom surface of the outer shell 1, and the end of the spring hinge 13 is fixedly connected to a lower sealing plate 14, the top surface of the lower sealing plate 14 is in contact with the bottom surface of the outer shell 1, and the lower sealing plate 14 is located below the conical oil storage tank 11.

[0031] In this embodiment, the elastic force of the spring hinge 13 is utilized to drive the lower sealing plate 14 to fit against the bottom surface of the housing 1 .

[0032] For details, please refer to Figure 2 and Figure 5 The oil storage mechanism 2 includes an oil storage tank 15 fixedly sleeved on the outside of the outer shell 1, an air vent 16 is opened on the top surface of the oil storage tank 15, a filter screen 17 is arranged on the inner wall of the air vent 16, an oil drain valve 19 is fixedly installed at the end of the oil storage tank 15, and the end of the oil drain valve 19 extends to the inner cavity of the oil storage tank 15.

[0033] In this embodiment, the filter 17 is used to prevent dust from entering the oil storage tank 15 through the air vent 16, and the oil drain valve 19 is used to drain the oil in the oil storage tank 15.

[0034] For details, please refer to Figure 1 The ends of the air inlet pipe 3 and the air outlet pipe 4 are respectively fixedly sleeved with flanges 22.

[0035] In this embodiment, the flange 22 is used to connect with the external pipeline.

[0036] For details, please refer to Figure 2 , the side surface of the stainless steel wire filter element 6 is in contact with the inner wall of the housing 1 .

[0037] In this embodiment, it is ensured that the stainless steel wire filter element 6 can completely filter the oil in the exhaust gas.

[0038] For details, please refer to Figure 1 A perspective plate 18 is sleeved on the outer side of the oil storage tank 15 , and a controller 20 is fixedly installed on the outer side of the oil storage tank 15 .

[0039] In this embodiment, the situation inside the oil storage tank 15 is controlled through the perspective plate 18 , and the servo motor 9 is controlled by the controller 20 .

[0040] Working principle: When in use, firstly, the exhaust gas generated by shale refining is introduced into the outer shell 1 through the air inlet pipe 3, and the oil in the exhaust gas is filtered by the stainless steel wire filter element 6 in the outer shell 1, and the filtered exhaust gas is discharged from the air outlet pipe 4, and then the servo motor 9 is started to drive the scraper 10 to rotate, and the scraper 10 is used to scrape the bottom surface of the stainless steel wire filter element 6 to clean up the oil, and the cleaned oil is stored in the conical oil storage tank 11, and then when the oil stored in the conical oil storage tank 11 reaches a certain amount, the weight of the oil squeezes the lower sealing plate 14 to rotate downward, so that the oil in the conical oil storage tank 11 falls into the oil storage tank 15, and the filtered oil is stored in the oil storage tank 15. Finally, when a certain amount of oil is stored in the oil storage tank 15, open the oil drain valve 19 to release the oil in the oil storage tank 15.

[0041] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A shale refinery tail gas filter, comprising a housing (1), characterized in that: An air inlet pipe (3) is arranged on one side of the shell (1), an air outlet pipe (4) is arranged on the other side of the shell (1), an oil retaining mechanism (12) is arranged at the bottom of the shell (1), a conical oil storage tank (11) is arranged at the bottom of the shell (1), an oil storage mechanism (2) is arranged on the outer side of the bottom end of the shell (1), a support ring (5) is arranged on the inner wall of the shell (1), a stainless steel wire filter element (6) is placed on the top surface of the support ring (5) and in the inner cavity of the shell (1), and the outer The top end of the shell (1) is threadedly mounted with a top cover (21); the inner wall of the shell (1) is fixedly connected with a support plate (7); the bottom surface of the support plate (7) is fixedly mounted with a servo motor (9); the output shaft of the servo motor (9) extends to the top of the support plate (7) and is fixedly connected with a scraper (10); the top surface of the scraper (10) is in contact with the bottom surface of the stainless steel wire filter element (6); the bottom surface of the support plate (7) and located outside the servo motor (9) is fixedly connected with a protective shell (8).

2. A shale refinery tail gas filter according to claim 1, characterized in that: The oil blocking mechanism (12) comprises a spring hinge (13) fixedly mounted on the bottom surface of the outer shell (1), the end of the spring hinge (13) being fixedly connected to a lower sealing plate (14), the top surface of the lower sealing plate (14) being in contact with the bottom surface of the outer shell (1), and the lower sealing plate (14) being located below the conical oil storage tank (11).

3. The shale refinery tail gas filter according to claim 1, characterized in that: The oil storage mechanism (2) comprises an oil storage tank (15) fixedly sleeved on the outside of the outer shell (1), a ventilation hole (16) being provided on the top surface of the oil storage tank (15), a filter screen (17) being provided on the inner wall of the ventilation hole (16), an oil drain valve (19) being fixedly mounted on the end of the oil storage tank (15), and the end of the oil drain valve (19) extending into the inner cavity of the oil storage tank (15).

4. The shale refinery tail gas filter according to claim 1, characterized in that: The ends of the air inlet pipe (3) and the air outlet pipe (4) are respectively fixedly sleeved with flange plates (22).

5. The shale refinery tail gas filter according to claim 1, characterized in that: The side surface of the stainless steel wire filter element (6) is in contact with the inner wall of the outer shell (1).

6. A shale refinery tail gas filter according to claim 3, characterized in that: The outer side of the oil storage tank (15) is sleeved with a perspective plate (18), and the outer side of the oil storage tank (15) is fixedly mounted with a controller (20).

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