Petrochemical residual oil filtering device

Abstract

The utility model relates to the technical field of petroleum processing, and discloses a petrochemical residual oil filtering device which comprises a filtering device body, a filtering net is movably connected in an inner cavity of the filtering device body, and a driving wheel is movably connected to one side of the top end of the inner cavity of the filtering device body. The other side of the top end of the inner cavity of the filtering device body is movably connected with a driven wheel, the driving wheel and the driven wheel are in transmission connection through a filter screen, a residual oil inlet is formed in the top of the filtering device body, and a liquid outlet is formed in one side of the bottom of the filtering device body; a cleaning structure is arranged on one side, far away from the liquid outlet, of the filtering device body. According to the petrochemical residual oil filtering device, through the arrangement of the cleaning structure, in the petrochemical residual oil filtering process of the device, the filter screen is in a real-time cleaning state, and the filter screen can transport intercepted impurities away, so that the impurities are prevented from influencing the contact between the petrochemical residual oil and the filter screen, and the filtering efficiency of the petrochemical residual oil can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum processing, in particular to a petrochemical residual oil filtering device. Background Art

[0002] In oil refineries, residual oil is often used to process and produce products such as petroleum coke, residual lubricating oil, petroleum asphalt, or as a cracking raw material. Due to the presence of mechanical impurities such as ferrous cyclohexane and ferrous sulfide in residual oil, these impurities will cause scaling, foaming, corrosion, abrasion, and affect the activity of catalysts. Therefore, in the production process of residual oil, the residual oil needs to be filtered before it can be processed.

[0003] After searching, in the prior art, an authorized patent with application number CN202321109074.X discloses a petrochemical residual oil filtering device, including a filter box and a cover plate installed on the top of the filter box, a liquid inlet pipe is provided at the center of the cover plate, a liquid outlet pipe is provided at the bottom center of the filter box, a valve is provided in the liquid outlet pipe, and the bottom surface of the inner cavity of the filter box is inclined at the liquid outlet pipe; a fixed cylinder is provided at the lower center of the inner cavity of the filter box, the outer side of the fixed cylinder is fixedly connected to the side wall of the filter box by a plurality of evenly arranged fixing rods, and a cylindrical rotating block and other components are rotatably connected in the fixed cylinder.

[0004] During use of the above scheme, the impurities in the filter cartridge can only be cleaned after the filter cartridge is taken out of the device, and during the impurity cleaning process, the above scheme is in a state of being unable to work. Therefore, cleaning the filtered impurities will affect the working efficiency of the above scheme; and during use of the above scheme, the impurities intercepted by the filter cartridge are always located inside the filter cartridge, and the impurities will occupy a part of the space inside the filter cartridge, reducing the contact area between the filter cartridge and the residual oil, thereby reducing the filtering efficiency of the residual oil; based on this, the present application proposes a petrochemical residual oil filtering device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a petrochemical residual oil filtering device, which solves the problem proposed in the above-mentioned background technology that when cleaning the intercepted impurities, the filtering device cannot continue to filter the residual oil, the working efficiency of the filtering device is low, and the intercepted impurities occupy a part of the space in the filter cylinder, reducing the contact area between the filter cylinder and the residual oil, thereby reducing the filtering efficiency of the residual oil.

[0006] The utility model provides the following technical solutions: a petrochemical residual oil filtering device, comprising a filtering device body, a filtering screen movably connected in the inner cavity of the filtering device body, a driving wheel movably connected on one side of the top of the inner cavity of the filtering device body, a driven wheel movably connected on the other side of the top of the inner cavity of the filtering device body, the driving wheel and the driven wheel are connected by transmission through the filtering screen, a residual oil inlet is provided on the top of the filtering device body, a liquid discharge port is provided on one side of the bottom of the filtering device body, and a cleaning structure is provided on the side of the filtering device body away from the liquid discharge port;

[0007] The cleaning structure includes a fixed scraper and a collecting frame. A slag discharge port and a liquid return port are provided on the side of the filter device body away from the liquid discharge port. The fixed scraper is fixedly connected to the bottom of the inner cavity of the slag discharge port. One end of the fixed scraper contacts the side of the filter screen away from the liquid discharge port. The other end of the fixed scraper extends to the top of the collecting frame through the slag discharge port. A partition mesh plate is fixed to the bottom end of the inner cavity of the collecting frame. The top of the inner cavity of the collecting frame is connected to an extrusion plate through an electric telescopic rod. The bottom of the extrusion plate contacts the top of the partition mesh plate. A drainage pipe adapted to the liquid return port is provided on one side of the bottom end of the collecting frame. The drainage pipe is located below the partition mesh plate.

[0008] Preferably, one side of the filter device body is fixedly connected to a rotating motor, and the end of the output shaft of the rotating motor is fixedly connected to the middle of one end of the driving wheel; the other side of the top of the inner cavity of the filter device body is fixedly connected to an intercepting plate, and the bottom of the intercepting plate is in contact with the filter screen; the bottom of the inner cavity of the filter device body is inclined, and the drain port is located at the lower end of the bottom of the inner cavity of the filter device body.

[0009] Preferably, the top of the slag discharge port is fixedly connected to an electric telescopic rod 2, the bottom of the electric telescopic rod 2 is fixedly connected to an opening and closing door, and the bottom of the opening and closing door is adapted to the fixed scraper.

[0010] Preferably, a sealing plate is movably connected to the top of the collecting frame, the bottom of the inner cavity of the collecting frame is inclined, and the drain pipe is located at the lower end of the bottom of the inner cavity of the collecting frame.

[0011] Preferably, one end of the drain pipe away from the collecting frame is clamped with the inner cavity of the liquid return port, a through hole is provided in the middle of the other end of the drain pipe, and an electric ball valve is provided in the inner cavity of the through hole and in the inner cavity of one end of the liquid return port close to the filter screen.

[0012] Preferably, the electric ball valve includes a valve plate and a rotating motor 2 for driving the valve plate to rotate, the valve plate is adapted to the inner cavity of the through hole or the inner cavity of the liquid return port, and the rotating motor 2 is fixedly connected to the collection frame or the filter device body.

[0013] Preferably, the mesh diameter of the filter screen is the same as the mesh diameter of the separation screen.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The petrochemical residue oil filtering device, through the setting of the cleaning structure, during the filtering process of the petrochemical residue oil, the filter screen is in a real-time cleaning state, and the filter screen can transport the intercepted impurities to avoid the impurities affecting the contact between the petrochemical residue oil and the filter screen, which can improve the filtering efficiency of the petrochemical residue oil; through the setting of the fixed scraper, the fixed scraper can guide the impurities to fall into the collection frame, and the moving path of the impurities can be blocked by the opening and closing door, so that the collection frame will not affect the use of the device when cleaning, thereby improving the working efficiency of the device.

[0016] 2. The petrochemical residual oil filtering device, through the setting of the collecting frame, the extension and retraction of the electric telescopic rod can drive the extrusion plate fixedly connected thereto to move, and the extrusion plate can squeeze the collected impurities to squeeze out the excess residual oil in the impurities, and the extruded residual oil is merged with the filtered residual oil in the filtering device body through the drain pipe and the return liquid port, so as to avoid the residual oil from being wasted and facilitate the subsequent treatment of the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the structure of the utility model;

[0018] Figure 2 The utility model structure Figure 1 Back side diagram;

[0019] Figure 3 The utility model structure Figure 2 Schematic cross-section;

[0020] Figure 4 The utility model structure Figure 2 Internal front view diagram;

[0021] Figure 5 The utility model structure Figure 1 Explosion diagram;

[0022] Figure 6 It is a cross-sectional schematic diagram of the structure collection frame of the utility model.

[0023] In the figure: 1. Filter device body; 2. Driven wheel; 3. Driving wheel; 4. Interceptor plate; 5. Electric telescopic rod 2; 6. Opening and closing door; 7. Fixed scraper; 8. Collecting frame; 10. Rotating motor 2; 11. Filter screen; 12. Sealing plate; 13. Residual oil inlet; 14. Drain port; 15. Rotating motor 1; 16. Liquid return port; 17. Partitioning mesh plate; 18. Electric telescopic rod 1; 19. Extrusion plate; 20. Drain pipe; 21. Valve plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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] The utility model provides a petrochemical residual oil filtering device, comprising a filtering device body 1, wherein a filter screen 11 is movably connected in the inner cavity of the filtering device body 1, and the filter screen 11 is used to filter the petrochemical residual oil to be filtered, and the filter screen 11 can intercept impurities in the petrochemical residual oil, and the petrochemical residual oil after filtering falls to the bottom of the inner cavity of the filtering device body 1 under the action of gravity. A residual oil inlet 13 is provided at the top of the filtering device body 1, and the petrochemical residual oil to be filtered enters the inner cavity of the filtering device body 1 through the residual oil inlet 13, and under the action of gravity, the petrochemical residual oil can fall on the filter screen 11, and the filter screen 11 filters the petrochemical residual oil. A drainage port 14 is provided on one side of the bottom of the filtering device body 1, and through the setting of the drainage port 14, the filtered residual oil is discharged through the drainage port 14, and the bottom of the inner cavity of the filtering device body 1 is inclined, and the drainage port 14 is located at the lower end of the bottom of the inner cavity of the filtering device body 1.

[0026] A driving wheel 3 is movably connected to one side of the top of the inner cavity of the filter body 1, and a driven wheel 2 is movably connected to the other side of the top of the inner cavity of the filter body 1. The driving wheel 3 and the driven wheel 2 are connected by transmission through the filter screen 11, and one side of the filter body 1 is fixedly connected to a rotating motor 15, and the output shaft end of the rotating motor 15 is fixedly connected to the middle of one end of the driving wheel 3 through a reducer. Through the setting of the rotating motor 15, the rotation of the rotating motor 15 can drive the driving wheel 3 fixedly connected thereto to rotate, and the driving wheel 3 drives the filter screen 11 to rotate. The filter screen 11 can transport the intercepted impurities during the rotation process, so that the impurities are away from the residual oil inlet 13, and the impurities are prevented from affecting the contact between the petrochemical residual oil and the filter screen 11.

[0027] An interception plate 4 is fixedly connected to the top of the inner cavity of the filter device body 1 on the side close to the drain port 14, and the bottom of the interception plate 4 is in contact with the filter screen 11. Through the setting of the interception plate 4, the interception plate 4 can intercept the petrochemical residual oil to prevent the unfiltered petrochemical residual oil from being discharged through the drain port 14.

[0028] A cleaning structure is provided on the side of the filter body 1 away from the liquid discharge port 14, and the cleaning structure includes a fixed scraper 7 and a collection frame 8. A slag discharge port and a liquid return port 16 are provided on the side of the filter body 1 away from the liquid discharge port 14. The fixed scraper 7 is fixedly connected to the bottom of the inner cavity of the slag discharge port. One end of the fixed scraper 7 contacts the side of the filter screen 11 away from the liquid discharge port 14, and the other end of the fixed scraper 7 extends to the top of the collection frame 8 through the slag discharge port. Through the setting of the fixed scraper 7, during the rotation of the filter screen 11, the filter screen 11 can drive impurities close to the fixed scraper 7, and the impurities on the filter screen can fall on the fixed scraper 7 under the action of gravity, and the impurities adhered to the filter screen can be scraped off by the fixed scraper 7, and the impurities on the fixed scraper 7 can fall into the collection frame 8 along the fixed scraper 7 under the action of gravity, so as to achieve the separation of impurities from the filter screen 11 and the collection of impurities.

[0029] The top of the slag discharge port is fixedly connected with an electric telescopic rod 25, and the bottom of the electric telescopic rod 25 is fixedly connected with an opening and closing door 6. The bottom of the opening and closing door 6 is adapted to the fixed scraper 7. Through the setting of the electric telescopic rod 25, the extension and retraction of the electric telescopic rod 25 can change the position of the opening and closing door 6 fixedly connected thereto. When the bottom of the opening and closing door 6 is tightly fitted with the top of the fixed scraper 7, the opening and closing door 6 can block the slag discharge port, and impurities cannot fall into the collection frame 8, which is convenient for the treatment of the impurities collected in the collection frame 8.

[0030] A partition mesh plate 17 is fixed to the bottom end of the inner cavity of the collecting frame 8, the mesh diameter of the filter screen 11 is the same as the mesh diameter of the partition mesh plate 17, and the top of the inner cavity of the collecting frame 8 is connected to an extrusion plate 19 through an electric telescopic rod 18, and the bottom of the extrusion plate 19 contacts the top of the partition mesh plate 17. Through the setting of the electric telescopic rod 18, the extension and retraction of the electric telescopic rod 18 can change the position of the extrusion plate 19 fixedly connected thereto, and the extrusion plate 19 can squeeze the impurities collected in the collecting frame 8, and the excess residual oil between the impurities can be squeezed out. The squeezed residual oil passes through the partition mesh plate 17 and falls to the bottom of the inner cavity of the collecting frame 8.

[0031] A drain pipe 20 is provided on one side of the bottom end of the collecting frame 8, and the drain pipe 20 is located below the partition mesh plate 17. The bottom of the inner cavity of the collecting frame 8 is inclined, and the drain pipe 20 is located at the lower end of the bottom of the inner cavity of the collecting frame 8. Through the arrangement of the drain pipe 20, the residual oil squeezed out between the impurities can be discharged through the drain pipe 20.

[0032] The drain pipe 20 is adapted to the liquid return port 16, and one end of the drain pipe 20 away from the collection frame 8 is clamped with the inner cavity of the liquid return port 16. Through the arrangement of the drain pipe 20, the drain pipe 20 plays a positioning function, which facilitates the connection between the collection frame 8 and the filter device body 1. A through hole is arranged in the middle of the other end of the drain pipe 20, and an electric ball valve is arranged in the inner cavity of the through hole and in the inner cavity of the end of the liquid return port 16 close to the filter screen 11. Through the arrangement of the electric ball valve, the operation of the electric ball valve can control the opening and closing of the inner cavity of the through hole or the opening and closing of the inner cavity of the liquid return port 16.

[0033] In some embodiments of the present application, the electric ball valve includes a valve plate 21 and a rotating motor 2 10 that drives the valve plate 21 to rotate, the valve plate 21 is adapted to the inner cavity of the through hole or the inner cavity of the liquid return port 16, and the rotating motor 2 10 is fixedly connected to the collection frame 8 or the filter device body 1. The rotation of the rotating motor 2 10 can drive the valve plate 21 fixedly connected thereto to rotate, and the rotation of the valve plate 21 enables the inner cavity of the through hole or the inner cavity of the liquid return port 16 to be opened and closed, so that the residual oil squeezed out of the collection frame 8 is merged with the filtered residual oil.

[0034] The top of the collecting frame 8 is movably connected with a sealing plate 12. Through the setting of the sealing plate 12, the sealing plate 12 can achieve sealing of the collecting frame 8, and can prevent the residual oil from flowing out of the collecting frame during the extrusion process.

[0035] From the above description, it can be known that during the filtering process of petrochemical residual oil by the device, the filter screen 11 is in a real-time cleaning state, and the contact portion of the filter screen 11 with the petrochemical residual oil is not blocked by impurities, which can avoid the impurities from affecting the contact between the petrochemical residual oil and the filter screen, thereby improving the filtering efficiency of the petrochemical residual oil; the collecting frame and the filtering device body 1 are separable, which is convenient for the treatment of impurities, and the impurities will not affect the treatment of the petrochemical residual oil by the filtering device body 1 during the treatment process, that is, during the use of the device, the cleaning of impurities will not affect the working efficiency of the device. Compared with the prior art, the working efficiency of the device is significantly improved.

[0036] Among them, the electrical components involved in this application are all existing technologies, and technical personnel in this field understand their connection methods. Through these personnel, all electrical components in this application are connected to their compatible power supplies through wires, and according to actual conditions, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order between each electrical component, and the detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0037] To sum up, when the present application is in use, the petrochemical residual oil to be filtered enters the inner cavity of the filter body 1 through the residual oil inlet 13, and the petrochemical residual oil falls on the filter screen 11 under the action of gravity, the filter screen 11 filters the petrochemical residual oil, and the filtered petrochemical residual oil is discharged through the drain port 14. During the injection of the petrochemical residual oil, the rotating motor 15 is in a rotating state, and the rotating motor 15 drives the driving wheel 3 fixedly connected thereto to rotate, and the driving wheel 3 drives the filter screen 11 to rotate. The rotation of the filter screen 11 enables the filter screen to transport the intercepted impurities away, and prevents the impurities from affecting the contact between the petrochemical residual oil and the filter screen 11. The transported impurities can fall on the fixed scraper 7 under the action of gravity, and the impurities adhered to the filter screen 11 are scraped off by the fixed scraper 7. The scraped impurities and the impurities falling on the fixed scraper 7 fall into the collecting frame 8 under the guidance of the fixed scraper 7 and are collected by the collecting frame 8. If it is necessary to squeeze out the residual oil among the impurities in the collecting frame 8, the opening and closing door 6 blocks the slag discharge port under the action of the electric telescopic rod 2 5, and the staff pushes the sealing plate 12 so that the sealing plate 12 seals the top of the collecting frame 8. The inner cavity of the through hole is in an open state under the action of the electric ball valve, and the inner cavity of the return liquid port 16 is in an open state under the action of the electric ball valve. The electric telescopic rod 18 drives the extrusion plate 19 to move, and the extrusion plate 19 squeezes the impurities, and the residual oil among the impurities is squeezed out. The squeezed residual oil merges with the filtered residual oil along the through hole and the return liquid port 16 to avoid the residual oil being wasted. In addition, the impurity cleaning process in the collecting frame 8 will not affect the filtration of the petrochemical residual oil by the device, thereby improving the working efficiency of the device.

[0038] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A petrochemical residual oil filtering device, comprising a filtering device body (1), characterized in that: A filter screen (11) is movably connected to the inner cavity of the filter device body (1); a driving wheel (3) is movably connected to one side of the inner cavity top of the filter device body (1); a driven wheel (2) is movably connected to the other side of the inner cavity top of the filter device body (1); the driving wheel (3) and the driven wheel (2) are transmission-connected via the filter screen (11); a residual oil inlet (13) is provided at the top of the filter device body (1); a liquid discharge port (14) is provided at one side of the bottom of the filter device body (1); and a cleaning structure is provided at the side of the filter device body (1) away from the liquid discharge port (14); The cleaning structure comprises a fixed scraper (7) and a collecting frame (8); a slag discharge port and a liquid return port (16) are provided on a side of the filtering device body (1) away from the liquid discharge port (14); the fixed scraper (7) is fixedly connected to the bottom of the inner cavity of the slag discharge port; one end of the fixed scraper (7) contacts the side of the filter screen (11) away from the liquid discharge port (14); the other end of the fixed scraper (7) extends to the top of the collecting frame (8) through the slag discharge port; a partitioning mesh plate (17) is fixed to the bottom end of the inner cavity of the collecting frame (8); the top end of the inner cavity of the collecting frame (8) is connected to an extrusion plate (19) via an electric telescopic rod (18); the bottom of the extrusion plate (19) contacts the top of the partitioning mesh plate (17); a liquid discharge pipe (20) adapted to the liquid return port (16) is provided on one side of the bottom end of the collecting frame (8); the liquid discharge pipe (20) is located below the partitioning mesh plate (17).

2. A petrochemical residual oil filtering device according to claim 1, characterized in that: One side of the filter device body (1) is fixedly connected to a rotating motor (15), and the end of the output shaft of the rotating motor (15) is fixedly connected to the middle of one end of the driving wheel (3); the other side of the top of the inner cavity of the filter device body (1) is fixedly connected to an interception plate (4), and the bottom of the interception plate (4) is in contact with the filter screen (11); the bottom of the inner cavity of the filter device body (1) is inclined, and the drainage port (14) is located at the lower end of the bottom of the inner cavity of the filter device body (1).

3. A petrochemical residual oil filtering device according to claim 1, characterized in that: The top of the slag discharge port is fixedly connected to an electric telescopic rod 2 (5), the bottom of the electric telescopic rod 2 (5) is fixedly connected to an opening and closing door (6), and the bottom of the opening and closing door (6) is adapted to a fixed scraper (7).

4. A petrochemical residual oil filtering device according to claim 1, characterized in that: The top of the collecting frame (8) is movably connected to a sealing plate (12), the bottom of the inner cavity of the collecting frame (8) is inclined, and the drainage pipe (20) is located at the lower end of the bottom of the inner cavity of the collecting frame (8).

5. The petrochemical residual oil filtering device according to claim 1, characterized in that: One end of the liquid discharge pipe (20) away from the collecting frame (8) is clamped with the inner cavity of the liquid return port (16), and a through hole is provided in the middle of the other end of the liquid discharge pipe (20). Electric ball valves are provided in the inner cavity of the through hole and in the inner cavity of one end of the liquid return port (16) close to the filter screen (11).

6. A petrochemical residual oil filtering device according to claim 5, characterized in that: The electric ball valve comprises a valve plate (21) and a second rotating motor (10) for driving the valve plate (21) to rotate; the valve plate (21) is adapted to the inner cavity of the through hole or the inner cavity of the liquid return port (16); and the second rotating motor (10) is fixedly connected to the collection frame (8) or the filter device body (1).

7. The petrochemical residual oil filtering device according to claim 5, characterized in that: The mesh diameter of the filter screen (11) is the same as the mesh diameter of the partition screen (17).

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