Colloidal asphaltene crude oil distillation pretreatment device

Abstract

The utility model relates to the technical field of petroleum refining, in particular to a colloid asphaltene crude oil distillation pretreatment device. The colloid asphaltene crude oil distillation pretreatment device comprises a frame body, a movably connected discharging hopper is arranged in the frame body, and a driving assembly is installed on the frame body; the driving assembly comprises a mounting plate, the mounting plate is arranged on the frame body in a sliding and sleeving mode, and the mounting plate is fixedly connected with the discharging hopper. When the colloid asphaltene crude oil distillation pretreatment device is used, the working driving assembly can drive the discharging hopper to make the discharging hopper reciprocate in the vertical direction, and the generated acting force can increase the vibration force of materials in the discharging hopper in the reciprocating process, so that the materials in the discharging hopper are separated from the discharging hopper. Therefore, the materials can be separated downwards from the discharging plate and fall more smoothly, and the phenomenon that the materials are blocked in the discharging plate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum refining, in particular to a device for pre-treating colloid asphaltene crude oil distillation. Background Art

[0002] "Colloidal asphaltene crude oil" refers to crude oil containing a high proportion of colloids and asphaltenes. This type of crude oil is typically classified as heavy or extra-heavy. The core objectives of distillation pretreatment units for this type of crude oil are to reduce crude viscosity, inhibit coking, and minimize metal / impurity content, ensuring stable operation of subsequent distillation columns (especially atmospheric and vacuum distillation). Due to the high density, viscosity, high colloid / asphaltene content, high metal (Ni, V) and sulfur content of this type of crude oil, direct distillation can lead to severe coking and equipment blockage. Therefore, pretreatment is required before processing. Common pretreatment units include solvent deasphalting units, hydrogenation pretreatment units, and electro-desalting and dehydration enhancement units.

[0003] The existing Chinese patent publication number CN211871878U is a solvent deasphalting device. According to the contents recorded in its specification, when in use, the device mainly uses gravity to perform screening. With this screening method, if a relatively large amount of residual asphalt accumulated on the screen, it is easy to cause the screen to be blocked, affecting the overall screening process.

[0004] Therefore, it is necessary to provide a new colloidal asphaltene crude oil distillation pretreatment device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a colloidal asphaltene crude oil distillation pretreatment device.

[0006] The utility model provides a colloidal asphaltene crude oil distillation pretreatment device comprising: a frame, wherein a movable lower hopper is provided in the frame, and a driving assembly is installed on the frame;

[0007] The driving assembly includes a mounting plate, which is slidably mounted on the frame, the mounting plate is fixedly connected to the discharge hopper, a fixedly connected discharge plate is mounted inside the discharge hopper, and a plurality of evenly distributed discharge holes are opened inside the discharge plate, a sealing cover is fixedly mounted on the upper plate surface of the mounting plate, and an airbag is installed between the mounting plate and the frame, the airbag is communicated with the sealing cover through an exhaust pipe, and an air intake pipe for air intake is also installed on the airbag;

[0008] A connecting hose is fixedly installed on the top of the sealing cover;

[0009] A ejector pin for cleaning the blanking hole is installed inside the frame.

[0010] Preferably, a support plate is fixedly mounted on the frame body, the support plate is located below the mounting plate, symmetrically distributed support frames are fixedly mounted on the support plate, rotatably connected cams are installed between the support frames on the same side, and the cams are elliptical structures, and a motor for driving the cams to rotate is fixedly mounted on the outer wall of the support frame.

[0011] Preferably, a spring is arranged between the mounting plate and the support plate, one end of the spring is fixedly connected to the lower surface of the mounting plate, and the other end of the spring is fixedly connected to the top of the support plate.

[0012] Preferably, a support frame is fixedly installed on the support plate by bolts, and the diameter of the top opening of the support frame is larger than the diameter of the bottom opening of the discharge hopper. A plurality of ejectors are provided, and the plurality of ejectors are fixedly installed in the support frame, and the ejectors correspond one-to-one to the discharge holes.

[0013] Preferably, both the air inlet pipe and the exhaust pipe are provided with a one-way valve.

[0014] Preferably, the center of the mounting plate is a through hole, and the lower hopper and the sealing cover are connected to each other through the through hole in the center of the mounting plate.

[0015] Compared with related technologies, the colloid asphaltene crude oil distillation pretreatment device provided by the utility model has the following beneficial effects:

[0016] 1. The utility model is provided with a driving component. During use, the working driving component can drive the lower hopper to make it reciprocate in the vertical direction. During the reciprocating motion, the force generated can increase the vibration force of the material inside the lower hopper, thereby making the material separate and fall downward from the lower plate more smoothly, reducing the phenomenon of material clogging in the lower plate.

[0017] 2. When the utility model drives the discharge hopper, when the discharge hopper drives the internal discharge plate to move downward, the ejector located below can be inserted into the discharge hole in the discharge plate, so that the material blocked in the discharge hole can be lifted and cleaned, thereby further reducing the probability of material blockage in the discharge plate.

[0018] 3. During the operation of the driving component of the utility model, the air bag can be squeezed to inject air and increase pressure into the interior of the lower hopper. Therefore, when the material above the lower plate accumulates, the air injection and pressure increase can also assist in increasing the downward driving force of the material above the lower plate, so that the liquid in the material can be discharged downward from the lower hole more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A schematic structural diagram of a preferred embodiment of a device for distillation and pretreatment of colloidal asphaltene crude oil provided by the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure of the sealing cover when the frame is connected to the drive assembly;

[0021] Figure 3 for Figure 1 The structural diagram of the lower hopper and the support frame is shown;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the frame and its components shown.

[0023] Numbers in the figure: 1. Frame; 11. Support plate; 2. Drive assembly; 21. Mounting plate; 22. Support frame; 221. Cam; 23. Airbag; 231. Intake pipe; 232. Exhaust pipe; 24. Sealing cover; 241. Connecting hose; 25. Spring; 3. Feed hopper; 31. Feed plate; 32. Feed hole; 4. Support frame; 41. Ejector pin. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0026] See also Figures 1 to 4 The embodiment of the present invention provides a pretreatment device for distillation of colloid asphaltene crude oil, which comprises a frame 1, a lower hopper 3 with a movable connection is provided in the frame 1, and a driving assembly 2 is installed on the frame 1.

[0027] In the embodiments of the present invention, please refer to Figures 1 to 4The driving assembly 2 includes a mounting plate 21, which is slidably mounted on the frame 1. The mounting plate 21 is fixedly connected to the hopper 3. A fixedly connected hopper plate 31 is mounted inside the hopper 3, and a plurality of evenly distributed hopper holes 32 are opened inside the hopper plate 31. A sealing cover 24 is fixedly mounted on the upper plate surface of the mounting plate 21, and an air bag 23 is installed between the mounting plate 21 and the frame 1. The air bag 23 is connected to the sealing cover 24 through an exhaust pipe 232, and an air intake pipe 231 for air intake is also installed on the air bag 23; a connecting hose 241 is fixedly mounted on the top of the sealing cover 24; the frame 1 A ejector pin 41 for cleaning the discharge hole 32 is installed on the frame body 1, and a support plate 11 is fixedly installed on the frame body 1, and the support plate 11 is located below the mounting plate 21. Symmetrically distributed support frames 22 are fixedly installed on the support plate 11, and rotatably connected cams 221 are installed between the support frames 22 on the same side, and the cams 221 are elliptical structures. A motor for driving the cams 221 to rotate is fixedly installed on the outer wall of the support frame 22, and a one-way valve is provided on the intake pipe 231 and the exhaust pipe 232. The center of the mounting plate 21 is a through hole, and the discharge hopper 3 and the sealing cover 24 are connected to each other through the through hole in the center of the mounting plate 21.

[0028] It should be noted that: through the arrangement of the spring 25 and the elliptical cam 221, when in use, when the relatively longer end of the elliptical cam 221 presses the mounting plate 21, the mounting plate 21 can be smoothly moved upward along the frame body 1, and when the part where the elliptical cam 221 abuts against the mounting plate 21 rotates from the relatively longer side to the relatively shorter side, during this process, the mounting plate 21 can be smoothly moved downward along the frame body 1 under the combination of gravity and the force of the spring 25, and then the mounting plate 21 can drive the internal lower hopper 3 to swing back and forth up and down. In this process, the vibration force generated by the swing can shake the material in the lower hopper 3, thereby reducing the phenomenon of material clogging at the fixed position above the lower plate 31 in the lower hopper 3, thereby helping to improve the separation effect of the material;

[0029] It should also be noted that: due to the sealing of the sealing cover 24, when the mounting plate 21 squeezes the airbag 23 during use, the gas in the airbag 23 can smoothly flow from the exhaust pipe 232 into the sealing cover 24 and the lower hopper 3. Then, when material accumulates on the discharge plate 31 in the lower hopper 3, the pressurized gas injection method can also help increase the downward force of the liquid in the material, so that the liquid can be discharged downward from the discharge hole 32 more smoothly, thereby helping to improve the separation effect of the lower hopper 3 on the material.

[0030] After the separation of the materials is completed in the later use process, the bolts fixing the mounting plate 21 and the lower hopper 3 can be released, so that the lower hopper 3 can be removed from under the mounting plate 21 to facilitate the discharge of the solid materials at the filtration separation point in the lower hopper 3;

[0031] By setting up the connecting hose 241, when the mounting plate 21 drives the sealing cover 24 to move in the vertical direction, the connecting hose 241 can move synchronously with the movement of the sealing cover 24, thereby avoiding the connected pipe from blocking the vertical movement trajectory of the sealing cover 24. At the same time, it can also realize the connection between the top end of the sealing cover 24 and the bottom end of the discharge valve in the document with publication number CN211871878U, so that the material discharged from the discharge valve can fall smoothly into the lower hopper 3.

[0032] In the embodiments of the present invention, please refer to Figures 1 to 4 A spring 25 is provided between the mounting plate 21 and the support plate 11 , one end of the spring 25 is fixedly connected to the lower surface of the mounting plate 21 , and the other end of the spring 25 is fixedly connected to the top of the support plate 11 .

[0033] It should be noted that: through the setting of the spring 25, when in use, when the outer wall of the relatively short diameter of the elliptical cam 221 rotates to the upward position, the spring 25 will drive the mounting plate 21 with its own force, so that it can be smoothly reset.

[0034] In the embodiments of the present invention, please refer to Figures 1 to 4 A support frame 4 is fixedly installed on the support plate 11 by bolts, and the diameter of the top opening of the support frame 4 is larger than the diameter of the bottom opening of the discharge hopper 3. A plurality of ejector pins 41 are provided, and the plurality of ejector pins 41 are fixedly installed in the support frame 4, and the ejector pins 41 correspond one-to-one to the discharge holes 32.

[0035] It should be noted that: since the top opening of the support frame 4 is relatively large, during use, when the lower hopper 3 moves downward with the driving assembly 2, the lower hopper 3 can be smoothly inserted downward into the support frame 4, thereby avoiding the support frame 4 from blocking the downward movement trajectory of the lower hopper 3, and then the ejector pin 41 in the support frame 4 can be smoothly inserted into the discharge hole 32 to lift and clean the material blocked in the discharge hole 32.

[0036] The working principle of the colloidal asphaltene crude oil distillation pretreatment device provided by the utility model is as follows:

[0037] Before using this device, the frame 1 of this device can be installed above the solvent collection tank in the center of the fixed base in the publication number CN211871878U to replace the screen, and the top end of the connecting hose 241 of this device can be connected to the bottom end of the discharge valve to complete the installation of the device.

[0038] Then, when in use, the previous steps in the document with publication number CN211871878U can be performed first until the discharge valve is opened to discharge the solvent and asphalt residue materials. The discharged materials can fall onto the discharge plate 31 in the discharge hopper 3 of the device, and then the materials can be filtered and screened through the discharge holes 32 in the discharge plate 31, so that the liquid can be discharged downward smoothly through the discharge plate 31;

[0039] During this process, the motor in the driving assembly 2 can be controlled to drive the cam 221 to rotate, and the rotating cam 221 can squeeze the mounting plate 21 to make the mounting plate 21 perform a vertical reciprocating motion on the frame 1. During the reciprocating motion, the force generated can vibrate the solvent and asphalt residue materials in the lower hopper 3, thereby preventing the falling materials from accumulating on the lower plate 31 in the lower hopper 3, causing the probability of clogging the lower hole 32 in the lower plate 31, and thus making the lower hopper 3 more stable in screening the liquid in the material;

[0040] When the lower hopper 3 drives the internal discharge plate 31 to move downward, the discharge hole 32 inside the discharge plate 31 can be sleeved on the outside of the corresponding ejector pin 41 below. When the ejector pin 41 is inserted into the discharge hole 32, the material blocked inside the discharge hole 32 can be lifted and cleaned, thereby reducing the probability of the material causing the discharge hole 32 to be blocked, so that the liquid in the solvent and asphalt residue material can flow downward more smoothly and separate;

[0041] At the same time, when the mounting plate 21 moves up and down, the air bag 23 above can also be squeezed, and the gas in the air bag 23 can flow into the sealing cover 24 through the exhaust pipe 232, thereby realizing the air injection and pressurization inside the sealing cover 24. In the process of separating the solvent and asphalt residue materials, the air pressure generated by the air injection can increase the driving force for the liquid in the material to flow downward, thereby further assisting in increasing the power of the liquid to flow downward, and thus assisting in improving the separation effect of the device on the solvent and asphalt residue materials.

[0042] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0043] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A colloidal asphaltene crude oil distillation pretreatment device, characterized in that: include: A frame (1), wherein a movably connected lower hopper (3) is provided in the frame (1), and a drive assembly (2) is installed on the frame (1); The driving assembly (2) includes a mounting plate (21), the mounting plate (21) is slidably mounted on the frame (1), the mounting plate (21) is fixedly connected to the discharge hopper (3), a fixedly connected discharge plate (31) is mounted inside the discharge hopper (3), and a plurality of evenly distributed discharge holes (32) are opened inside the discharge plate (31), a sealing cover (24) is fixedly mounted on the upper plate surface of the mounting plate (21), and an air bag (23) is mounted between the mounting plate (21) and the frame (1), the air bag (23) is communicated with the sealing cover (24) through an exhaust pipe (232), and an air intake pipe (231) for air intake is also mounted on the air bag (23); A connecting hose (241) is fixedly mounted on the top of the sealing cover (24); A ejector pin (41) for cleaning the feed hole (32) is installed inside the frame (1).

2. The device for distillation pretreatment of colloidal asphaltene crude oil according to claim 1, characterized in that: A support plate (11) is fixedly mounted on the frame body (1), the support plate (11) is located below the mounting plate (21), symmetrically distributed support frames (22) are fixedly mounted on the support plate (11), rotatably connected cams (221) are mounted between the support frames (22) on the same side, and the cams (221) are elliptical in structure. A motor for driving the cams (221) to rotate is fixedly mounted on the outer wall of the support frame (22).

3. The device for distillation pretreatment of colloidal asphaltene crude oil according to claim 2, characterized in that: A spring (25) is provided between the mounting plate (21) and the support plate (11), one end of the spring (25) is fixedly connected to the lower surface of the mounting plate (21), and the other end of the spring (25) is fixedly connected to the top of the support plate (11).

4. The device for distillation pretreatment of colloidal asphaltene crude oil according to claim 3, characterized in that: A support frame (4) is fixedly mounted on the support plate (11) by bolts, and the diameter of the top opening of the support frame (4) is larger than the diameter of the bottom opening of the discharge hopper (3). A plurality of ejector pins (41) are provided, and the plurality of ejector pins (41) are fixedly mounted in the support frame (4), and the ejector pins (41) correspond one-to-one to the discharge holes (32).

5. The device for distillation pretreatment of colloidal asphaltene crude oil according to claim 1, characterized in that: Both the air inlet pipe (231) and the air outlet pipe (232) are provided with a one-way valve.

6. The device for distillation pretreatment of colloidal asphaltene crude oil according to claim 1, characterized in that: The center of the mounting plate (21) is a through hole, and the lower hopper (3) and the sealing cover (24) are connected to each other through the through hole in the center of the mounting plate (21).

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