Catalytic treatment device for diesel hydrofining

Abstract

The utility model discloses a catalytic treatment device for diesel oil hydrofining, which belongs to the technical field of diesel oil hydrofining and comprises a treatment tank. The pretreatment barrel is arranged on one side of the treatment tank, the inner wall of the pretreatment barrel is detachably connected with a filter ring, and the top end of the filter ring is connected with a filter screen for refining and filtering diesel oil; the rotating motor is mounted at the top end of the pretreatment barrel, an output shaft of the rotating motor penetrates through the pretreatment barrel and is connected with a rotating rod, and the bottom end of the rotating rod is connected with a cleaning brush for cleaning the filter screen; the mounting circular plate is rotationally connected with the pretreatment barrel through a bearing, a servo motor is mounted at the bottom end of the mounting circular plate, an output shaft of the servo motor penetrates through the mounting circular plate and is connected with an auxiliary rod, and the auxiliary rod is fixedly connected with the pretreatment barrel; and two electric push rods and a vertical support plate are mounted at the top end of the counterweight plate. The catalytic treatment device for diesel hydrofining not only can be cleaned, but also can be adjusted, and discharging is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of diesel hydrotreating technology, and in particular to a catalytic treatment device for diesel hydrorefining. Background Technology

[0002] Diesel fuel is a light petroleum product, a complex mixture of hydrocarbons (approximately 10-22 carbon atoms), and is used as fuel for diesel engines. It is mainly blended from diesel fractions produced through processes such as crude oil distillation, catalytic cracking, thermal cracking, hydrocracking, and petroleum coking. Existing diesel fuel undergoes hydrogenation because hydrogenated diesel primarily involves the chemical reaction of hydrogen and sulfur in the diesel fuel to produce hydrogen sulfide, resulting in high-quality diesel. However, current hydrogenation catalytic reactions are time-consuming and slow, and since the diesel feedstock contains certain impurities, pre-filtration is performed, but without a cleaning function, it affects the need for continuous filtration.

[0003] A search revealed a Chinese patent document (authorization announcement number CN211497520U) entitled "Diesel Hydrorefining Catalytic Processing Device," comprising a main body, a reaction tank, and a mounting frame. The main body contains a filter chamber with grooves fixedly installed on its inner wall. A filter screen is fixedly installed between these grooves, and a sealing shaft is fixedly installed on the filter screen. This invention, through its filter chamber and filter screen, filters the diesel fuel flowing in from the feed pipe during operation, removing impurities and foreign matter from the source diesel. The filtered diesel fuel is then extracted from the bottom of the filter screen via a suction pipe. This allows the device to effectively filter impurities from the diesel fuel, resulting in higher diesel quality. While diesel feedstocks contain certain impurities and require pre-filtration, the lack of a cleaning function hinders continuous filtration. Utility Model Content

[0004] The purpose of this invention is to provide a catalytic treatment device for diesel hydrorefining, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a catalytic treatment device for diesel hydrorefining, comprising:

[0006] Processing tank;

[0007] A pretreatment tank is located on one side of the treatment tank. A filter ring is detachably connected to the inner wall of the pretreatment tank, and a filter screen for refining and filtering diesel fuel is connected to the top of the filter ring.

[0008] A rotary motor is installed at the top of the pretreatment tank. The output shaft of the rotary motor passes through the pretreatment tank and is connected to a rotating rod. The bottom end of the rotating rod is connected to a cleaning brush for cleaning the filter screen.

[0009] The mounting plate is rotatably connected to the pretreatment bucket via bearings. A servo motor is installed at the bottom of the mounting plate. The output shaft of the servo motor passes through the mounting plate and is connected to an auxiliary rod. The auxiliary rod is fixedly connected to the pretreatment bucket.

[0010] The counterweight plate has two electric push rods and a vertical support plate installed at its top. The bottom of the mounting plate is welded with a lifting lug, which is rotatably connected to the vertical support plate via a rotating shaft. The moving parts of the two electric push rods are connected to a pulley for supporting the mounting plate.

[0011] As a preferred embodiment, the top of the processing tank is detachably connected to a tank cover, and the top of the tank cover is connected to a feed pipe for adding hydrogenation catalyst materials.

[0012] As a preferred embodiment, the pretreatment tank has an unloading channel on the outside for easy material handling, and the inner wall of the unloading channel is rotatably connected to a material handling plate.

[0013] As a preferred embodiment, the pretreatment tank is connected to an inclined U-shaped receiving plate on its outer periphery, and the receiving plate is located below the receiving plate.

[0014] As a preferred embodiment, the material receiving plate is connected and fixed to the pretreatment bucket by a locking mechanism.

[0015] As a preferred embodiment, an oil pump is installed at the top of the pretreatment tank. The oil pump is connected to the lower half of the pretreatment tank through an oil inlet pipe and to the upper half of the treatment tank through an oil outlet pipe.

[0016] As a preferred embodiment, the top of the pretreatment tank is connected to an inlet pipe.

[0017] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0018] The catalytic treatment device for diesel hydrorefining has a filter screen that can filter the added diesel. During filtration, a rotary motor drives a rotating rod to rotate, which in turn drives a cleaning brush to rotate, so that the cleaning brush can clean the filter screen in a rotating manner, preventing the filter screen from being clogged and affecting subsequent filtration.

[0019] The catalytic treatment device for diesel hydrorefining uses an electric push rod to extend and retract, causing the pulley to lift the mounting plate, indirectly changing the tilt angle of the pretreatment tank and filter screen, thus altering the filtration and cleaning process. The servo motor adjustment changes the position and angle of the material receiving plate, facilitating unloading when it is at a low position.

[0020] This catalytic treatment unit for diesel hydrorefining can not only be cleaned but also adjusted for easy unloading. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a front view of the pretreatment bucket and counterweight plate of this utility model;

[0024] Figure 3 This is a cross-sectional view of the pretreatment bucket of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the picture:

[0027] 1. Processing tank; 2. Pretreatment tank; 3. Filter ring; 4. Filter screen; 5. Rotary motor; 6. Rotating rod; 7. Cleaning brush; 8. Mounting plate; 9. Servo motor; 10. Counterweight plate; 11. Electric push rod; 12. Vertical support plate; 13. Lifting lug; 14. Pulley; 15. Tank cover; 16. Feeding pipe; 17. Receiving plate; 18. Receiving plate; 19. Oil pump; 20. Oil inlet pipe; 21. Oil outlet pipe; 22. Liquid inlet pipe. Detailed Implementation

[0028] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0029] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0030] The connection method can adopt existing methods such as bonding, welding, bolting, etc., depending on the actual needs. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail. However, where appropriate, the techniques, methods and equipment should be regarded as part of the specification. The proportions of the components in the drawings are for reference only and can be adjusted to a certain extent according to the actual use.

[0031] Please see Figures 1 to 3 As shown, the catalytic treatment unit for diesel hydrorefining, in this embodiment, includes:

[0032] Processing tank 1;

[0033] The pretreatment tank 2 is located on one side of the treatment tank 1. The inner wall of the pretreatment tank 2 is detachably connected to a filter ring 3. The top of the filter ring 3 is connected to a filter screen 4 for refining and filtering diesel. Diesel is introduced into the pretreatment tank 2 through the liquid inlet pipe 22. During the falling process, the filter screen 4 will filter the diesel.

[0034] A rotary motor 5 is installed at the top of the pretreatment tank 2. The output shaft of the rotary motor 5 passes through the pretreatment tank 2 and is connected to a rotating rod 6. The bottom end of the rotating rod 6 is connected to a cleaning brush 7 for cleaning the filter screen 4. The length of the cleaning brush 7 is less than the radius of the filter screen 4. After the diesel has been filtered for a period of time, the rotary motor 5 is turned on. The rotary motor 5 drives the rotating rod 6 to rotate, which in turn drives the cleaning brush 7 to rotate, so that the cleaning brush 7 can perform a rotational cleaning of the filter screen 4, so as to prevent the filter screen 4 from being blocked and affecting subsequent filtration.

[0035] The mounting plate 8 is rotatably connected to the pretreatment tank 2 via bearings. A servo motor 9 is mounted at the bottom of the mounting plate 8. The output shaft of the servo motor 9 passes through the mounting plate 8 and is connected to an auxiliary rod. The auxiliary rod is fixedly connected to the pretreatment tank 2.

[0036] The counterweight plate 10 has two electric push rods 11 and a vertical support plate 12 installed at its top. The bottom of the mounting circular plate 8 is welded with a lifting lug 13, which is rotatably connected to the vertical support plate 12 via a rotating shaft. The moving parts of the two electric push rods 11 are connected to a pulley 14 for supporting the mounting circular plate 8. The adjustment range is not large, ensuring overall stability. The extension and retraction of the electric push rods 11 causes the pulley 14 to lift the mounting circular plate 8, indirectly changing the tilt angle of the pretreatment tank 2 and the filter screen 4, thus changing the state of filtration and cleaning. The adjustment of the servo motor 9 changes the position and angle of the material receiving plate 17. Before unloading, the material receiving plate 17 is lowered in advance. After stopping the material feeding, the material receiving plate 17 is opened to remove the debris.

[0037] The pretreatment tank 2 has an unloading channel on its outer side for easy material removal. The inner wall of the unloading channel is rotatably connected to a material removal plate 17. The outer periphery of the pretreatment tank 2 is connected to an inclined U-shaped receiving plate 18, and the receiving plate 18 is located below the material removal plate 17. The material removal plate 17 is connected and fixed to the pretreatment tank 2 by a latch.

[0038] An oil pump 19 is installed at the top of the pretreatment tank 2. The oil pump 19 is connected to the lower half of the pretreatment tank 2 through an oil inlet pipe 20 and to the upper half of the treatment tank 1 through an oil outlet pipe 21. The length of the oil outlet pipe 21 is sufficient to allow the pretreatment tank 2 to rotate. An inlet pipe 22 is connected to the top of the pretreatment tank 2. A tank cover 15 is detachably connected to the top of the treatment tank 1. A feed pipe 16 for adding hydrogenation catalyst material is connected to the top of the tank cover 15. Equipment for hydrogenation catalytic treatment is also installed inside the treatment tank 1. After refueling for a period of time, the oil pump 19 is turned on to pump the diesel fuel in the pretreatment tank 2 into the treatment tank 1. Hydrogenation catalyst material is added through the feed pipe 16 and catalytic treatment for refining is carried out in conjunction with the machinery inside the treatment tank 1.

[0039] The rotary motor 5, servo motor 9, electric actuator 11, and oil pump 19 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the problem solved by this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0040] Working principle

[0041] The catalytic treatment device for diesel hydrorefining introduces diesel into the pretreatment tank 2 through the inlet pipe 22. During the descent, the filter screen 4 filters the diesel. After a period of time, the oil pump 19 is turned on to pump the diesel in the pretreatment tank 2 into the treatment tank 1. Hydrogenation catalyst material is added through the feed pipe 16, and the catalytic treatment for refining is carried out in conjunction with the machinery in the treatment tank 1.

[0042] After the diesel fuel has been filtered for a period of time, the rotary motor 5 is turned on. The rotary motor 5 drives the rotating rod 6 to rotate, which in turn drives the cleaning brush 7 to rotate, so that the cleaning brush 7 can clean the filter screen 4 in a rotating manner, so as to prevent the filter screen 4 from being blocked and affecting subsequent filtration. The extension and retraction of the electric push rod 11 causes the pulley 14 to lift the mounting plate 8, indirectly changing the tilt angle of the pretreatment tank 2 and the filter screen 4, changing the state of filtration and cleaning. The adjustment of the servo motor 9 changes the position and angle of the material receiving plate 17. Before unloading, the material receiving plate 17 is lowered in advance. After stopping the unloading, the material receiving plate 17 is opened to remove the debris.

[0043] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] 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 catalytic treatment unit for diesel hydrorefining, characterized in that, include: Processing tank (1); A pretreatment tank (2) is set on one side of the treatment tank (1). A filter ring (3) is detachably connected to the inner wall of the pretreatment tank (2). A filter screen (4) for refining and filtering diesel is connected to the top of the filter ring (3). A rotary motor (5) is installed at the top of the pretreatment tank (2). The output shaft of the rotary motor (5) passes through the pretreatment tank (2) and is connected to a rotating rod (6). The bottom end of the rotating rod (6) is connected to a cleaning brush (7) for cleaning the filter screen (4). The mounting plate (8) is rotatably connected to the pretreatment bucket (2) via bearings. A servo motor (9) is installed at the bottom of the mounting plate (8). The output shaft of the servo motor (9) passes through the mounting plate (8) and is connected to an auxiliary rod. The auxiliary rod is fixedly connected to the pretreatment bucket (2). The counterweight plate (10) has two electric push rods (11) and a vertical support plate (12) installed at its top. The bottom end of the mounting circular plate (8) is welded with a lifting lug (13). The lifting lug (13) is rotatably connected to the vertical support plate (12) through a rotating shaft. The moving parts of the two electric push rods (11) are connected to a pulley (14) for supporting the mounting circular plate (8).

2. The catalytic treatment apparatus for diesel hydrorefining according to claim 1, characterized in that, The top of the processing tank (1) is detachably connected to a tank cover (15), and the top of the tank cover (15) is connected to a feed pipe (16) for adding hydrogenation catalyst material.

3. The catalytic treatment apparatus for diesel hydrorefining according to claim 1, characterized in that, The pretreatment barrel (2) has an unloading channel on its outer side for easy material handling, and the inner wall of the unloading channel is rotatably connected to a material handling plate (17).

4. The catalytic treatment apparatus for diesel hydrorefining according to claim 3, characterized in that, The pretreatment bucket (2) is connected to an inclined U-shaped receiving plate (18) on its outer periphery, and the receiving plate (18) is located below the receiving plate (17).

5. The catalytic treatment apparatus for diesel hydrorefining according to claim 1, characterized in that, The material receiving plate (17) is connected and fixed to the pretreatment bucket (2) by a latch.

6. The catalytic treatment apparatus for diesel hydrorefining according to claim 1, characterized in that, An oil pump (19) is installed at the top of the pretreatment tank (2). The oil pump (19) is connected to the lower half of the pretreatment tank (2) through the oil inlet pipe (20) and to the upper half of the treatment tank (1) through the oil outlet pipe (21).

7. The catalytic treatment apparatus for diesel hydrorefining according to claim 6, characterized in that, The top of the pretreatment tank (2) is connected to an inlet pipe (22).

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