Filtering device for oil refining production
By designing a filter device for oil refining production that includes rotating rods, drive components, branch pipes, lifting components and intelligent control components, the problems of reduced fluidity and slow filtration speed caused by the accumulation of impurities on the filter screen in the prior art are solved, and efficient crude oil and oil filtration and intelligent control are achieved.
Patent Information
- Application Number
- CN202510069521.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-02-28
AI Technical Summary
During the use of the existing filtration device in oil refining production, as the crude oil is filtration, a large amount of impurities will be accumulated on the surface of the filter screen, resulting in a decrease in the fluidity of the crude oil, slow filtration speed and low working efficiency.
A filter device for oil refining production is designed, including a filter box, a rotating rod, a drive assembly, a branch pipe, a lift assembly and an intelligent control assembly. Through the cooperation of the rotating rod and the driving component, the fluidity of crude oil is increased; through the use of high-temperature steam, the crude oil is prevented from solidifying and the impurities on the filter net; through the convenience of lifting and lowering the components, the impurities on the filter net are cleaned; through the real-time monitoring and control of the intelligent control component, the filtration process is accurately adjusted.
By enhancing the fluidity of crude oil and removing impurities on the filter net, the device significantly accelerates the filtration rate of crude oil and fluid, improves the filtration efficiency, and realizes intelligent control of the filter device.
Smart Images

Figure CN119524494A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of oil refining production, and in particular relates to a filtering device for oil refining production. Background Art
[0002] Oil refining is a process of distilling crude oil or other oils to change their molecular structure, that is, cracking crude oil into fuels such as kerosene, gasoline, diesel and heavy oil suitable for use in internal combustion engines. In the process of oil refining, crude oil often contains fixed impurities, so it is necessary to use a filtering device to treat it.
[0003] However, most common filtering devices usually use a filter mesh to filter crude oil during use, and as the crude oil is continuously filtered, a large amount of impurities will accumulate on the surface of the filter mesh, and these impurities will not only slow down the fluidity of the crude oil filtration, but also cause clogging of the filter mesh. At the same time, the crude oil itself will become viscous as the temperature decreases, which will further reduce the fluidity of the crude oil filtration, slowing down the filtration speed of the crude oil, thereby resulting in low efficiency of the crude oil filtration. For this reason, we propose a filtering device for oil refining production. Summary of the invention
[0004] The object of the present invention is to provide a filtering device for oil refining production to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a filtering device for oil refining production, the filtering device comprising: A filter box, wherein a top cover is arranged outside the top of the filter box, a mounting screw is fixedly connected to the bottom of the top cover, and a No. 1 filter screen and a No. 2 filter screen are arranged outside the mounting screw from top to bottom respectively; A rotating rod, a driving assembly is arranged outside the top end of the rotating rod, and a steam inlet pipe is movably sleeved on the top end of the rotating rod, a branch pipe is fixedly connected to the side of the rotating rod, a steam outlet hood is fixedly connected to the bottom of the branch pipe, and a one-way pressure safety valve is fixedly installed outside the steam outlet hood.
[0006] As a preferred embodiment, a liquid inlet pipe is fixedly connected to one side of the top of the top cover, a liquid inlet valve is fixedly installed on the outside of the liquid inlet pipe, and a liquid drain pipe is fixedly connected to the bottom of the filter box, and a liquid drain valve is fixedly installed on the outside of the liquid drain pipe.
[0007] As a preferred embodiment, the mounting screw is fixedly connected to the No. 1 filter and the No. 2 filter via a fixing ring, the fixing ring is threadedly sleeved on the outside of the mounting screw, the diameter of the surface mesh of the No. 1 filter is larger than the diameter of the surface mesh of the No. 2 filter, and the No. 1 filter and the No. 2 filter are both movably sleeved inside the filter box.
[0008] As a preferred embodiment, the rotating rod is movably sleeved in the middle of the top cover, and the rotating rod is made of metal material, and the rotating rod is movably sleeved in the middle of the No. 1 filter and the No. 2 filter.
[0009] As a preferred embodiment, the driving assembly includes a driving motor, which is fixedly mounted on the top of the top cover, and a driving gear is fixedly sleeved on the output shaft of the driving motor, and the outside of the driving gear is meshedly connected with a driven gear, and the driven gear is fixedly sleeved on the outside of the top end of the rotating rod.
[0010] As a preferred implementation, a steam inlet valve is fixedly installed on the outside of the steam inlet pipe, and the branch pipe is made of metal material.
[0011] As a preferred embodiment, the filtering device also includes a lifting assembly, which includes a transverse plate, which is fixedly connected to one side of the top cover, and an electric push rod is fixedly connected to the bottom of the transverse plate, and the outside of the electric push rod is fixedly connected to the side of the filter box through a mounting plate.
[0012] As a preferred implementation manner, one side of the transverse plate and one side of the top cover are perpendicular to each other, and the bottom of the transverse plate and the top of the electric push rod are perpendicular to each other.
[0013] As a preferred embodiment, the filtering device also includes an intelligent control component, which includes a liquid level sensing probe and a controller. The liquid level sensing probe is fixedly installed at the bottom of the top cover, and the output end of the liquid level sensing probe is signal-connected to the input end of the controller.
[0014] As a preferred embodiment, the controller includes a signal receiving module, a signal processing module and an instruction transmission module, the input of the signal receiving module is connected to the output signal of the liquid level sensing probe, and the output of the signal receiving module is connected to the input signal of the signal processing module, and the output of the signal processing module is connected to the input signal of the instruction transmission module.
[0015] Compared with the prior art, the present invention has the following beneficial effects: The filtering device for oil refining production can increase the fluidity of the crude oil at the top of the No. 1 filter screen or the No. 2 filter screen during the crude oil filtering process by providing a rotating rod, a driving assembly and a branch pipe, thereby avoiding the problem that impurities hinder the flow of the crude oil due to static accumulation, thereby accelerating the filtering speed of the crude oil, thereby improving the working efficiency of the crude oil filtering; The filtering device for oil refining production can make high-temperature steam flow inside the rotating rod and the branch pipe by arranging the steam inlet pipe and the steam inlet valve, so as to increase the temperature of the rotating rod and the branch pipe surface, and transfer the heat to the crude oil liquid to heat the crude oil liquid, thereby avoiding the problem of coagulation of the crude oil liquid, thereby increasing the fluidity of the crude oil liquid. At the same time, the high-temperature steam can be sprayed out from the steam outlet hood and disperse the impurities accumulated on the top of the No. 1 filter screen (or the No. 2 filter screen), thereby enhancing the permeability of the No. 1 filter screen (or the No. 2 filter screen), so that the crude oil liquid can smoothly pass through the No. 1 filter screen (or the No. 2 filter screen), indirectly accelerating the filtering speed of the crude oil liquid, thereby further improving the working efficiency of the crude oil liquid filtering; The filtering device for oil refining production is provided with a lifting assembly, so that after the crude oil is filtered, the first filter screen and the second filter screen can be easily removed from the inside of the filter box, so that the impurities adhering to the surfaces of the first filter screen and the second filter screen can be cleaned, thereby bringing convenience to the use of the filtering device; The filtering device used in oil refining production, by setting a liquid level sensing probe, a controller, a liquid inlet valve and a steam inlet valve, can facilitate real-time monitoring of the amount of crude oil above the No. 1 filter screen during the crude oil filtration process, and can accurately control the amount of oil filtered in the filter box, thus reflecting the intelligence of the filtering device.
[0016] The filtering device used in the oil refining production makes full use of the factory's steam resources and is installed at the front end of the crude oil heating furnace input. In this way, the small amount of water content added to the crude oil when it is working in the steam hood during filtering will also be volatilized in the subsequent distillation process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a front schematic diagram of the first embodiment of the structure of the present invention; Figure 2 It is a partial cross-sectional view of the first embodiment of the structure of the present invention; Figure 3 It is a top view of the No. 1 filter screen in the structure of the present invention; Figure 4 In the structure of the present invention Figure 2 A magnified schematic diagram of point A; Figure 5 It is a front schematic diagram of the second embodiment of the structure of the present invention; Figure 6 It is a partial cross-sectional view of the second embodiment of the structure of the present invention; Figure 7 It is a front view schematic diagram of the third embodiment of the structure of the present invention; Figure 8 It is a partial cross-sectional view of the third embodiment of the structure of the present invention; Fig. 9 It is a schematic diagram of telecommunication connection of the controller in the structure of the present invention.
[0018] In the figure: 1. filter box; 2. top cover; 3. liquid inlet pipe; 4. liquid inlet valve; 5. mounting screw; 6. filter screen No. 1; 7. filter screen No. 2; 8. rotating rod; 9. driving assembly; 91. driving motor; 92. driving gear; 93. driven gear; 10. steam inlet pipe; 11. steam inlet valve; 12. branch pipe; 13. steam outlet hood; 14. one-way pressure safety valve; 15. drain pipe; 16. lifting assembly; 161. horizontal plate; 162. electric push rod; 163. mounting plate; 17. liquid level sensor probe; 18. controller; 181. signal receiving module; 182. signal processing module; 183. instruction transmission module. DETAILED DESCRIPTION
[0019] The present invention will be further described below in conjunction with the embodiments.
[0020] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.
[0021] Embodiment 1 See also Figure 1-4 The present invention provides a filtering device for oil refining production, the filtering device comprises a filtering box 1 and a rotating rod 8, a top cover 2 is arranged outside the top of the filtering box 1, a liquid inlet pipe 3 is fixedly connected to one side of the top of the top cover 2, a liquid inlet valve 4 is fixedly installed outside the liquid inlet pipe 3, a mounting screw 5 is fixedly connected to the bottom of the top cover 2, a No. 1 filter screen 6 and a No. 2 filter screen 7 are arranged outside the mounting screw 5 from top to bottom, the mounting screw 5 is fixedly connected to the No. 1 filter screen 6 and the No. 2 filter screen 7 by a fixing ring, the fixing ring is threadedly sleeved on the outside of the mounting screw 5, the diameter value of the mesh on the surface of the No. 1 filter screen 6 is greater than the diameter value of the mesh on the surface of the No. 2 filter screen 7, and the No. 1 filter screen 6 and the No. 2 filter screen 7 are both movably sleeved inside the filtering box 1; In this embodiment, when the liquid inlet valve 4 is opened, the crude oil that needs to be filtered during oil refining production flows into the interior of the filter box 1 along the liquid inlet pipe 3. At this time, the crude oil will flow downward due to its own gravity and pass through the No. 1 filter 6 and the No. 2 filter 7 in turn, thereby facilitating the filtering of impurities in the crude oil.
[0022] The rotating rod 8 is movably sleeved in the middle of the top cover 2, and the rotating rod 8 is made of metal material. The rotating rod 8 is movably sleeved in the middle of the No. 1 filter 6 and the No. 2 filter 7. A driving assembly 9 is arranged outside the top of the rotating rod 8. The driving assembly 9 includes a driving motor 91. The driving motor 91 is fixedly mounted on the top of the top cover 2, and a driving gear 92 is fixedly sleeved on the output shaft of the driving motor 91. The driving gear 92 is meshed and connected with a driven gear 93 on the outside. The driven gear 93 is fixedly sleeved on the outside of the top of the rotating rod 8. The side of the rotating rod 8 is fixedly connected with a branch pipe 12. In this embodiment, during the crude oil filtering process, the driving motor 91 is turned on to rotate the driving gear 92, and the driving gear 92 drives the driven gear 93 to rotate, and the driven gear 93 drives the rotating rod 8 to rotate, so that the rotating rod 8 drives the branch pipe 12 to rotate, and the branch pipe 12 is used to drive the fluidity of the crude oil on the top of the No. 1 filter screen 6 and the No. 2 filter screen 7, which can speed up the filtering speed of the crude oil, thereby improving the working efficiency of the crude oil filtering.
[0023] The top of the rotating rod 8 is movably sleeved with a steam inlet pipe 10, and a steam inlet valve 11 is fixedly installed on the outside of the steam inlet pipe 10. The branch pipe 12 is made of metal material, and a steam outlet cover 13 is fixedly connected to the bottom of the branch pipe 12. A one-way pressure safety valve 14 is fixedly installed on the outside of the steam outlet cover 13. A drain pipe 15 is fixedly connected to the bottom of the filter box 1, and a drain valve is fixedly installed on the outside of the drain pipe 15. In this embodiment, during the rotation of the rotating rod 8, the steam inlet valve 11 is opened, so that the high-temperature steam can flow into the interior of the rotating rod 8 along the steam inlet pipe 10, and the high-temperature steam will flow inside the rotating rod 8 and the branch pipe 12, so that the temperature of the surface of the rotating rod 8 and the branch pipe 12 can be increased, and the heat can be transferred to the crude oil liquid to heat the crude oil liquid, thereby avoiding the problem of solidification of the crude oil liquid, thereby increasing the fluidity of the crude oil liquid, and controlling the high-temperature steam pressure to be greater than the pressure of the pressure safety valve 14, through the one-way pressure safety valve 14 from the steam outlet hood 13, and because the bottom of the steam outlet hood 13 is close to the top of the No. 1 filter 6 (or the No. 2 filter 7), the impurities accumulated on the top of the No. 1 filter 6 (or the No. 2 filter 7) will be dispersed at the moment of steam ejection, so that the No. 1 filter 6 (or the No. 2 filter 7) can be prevented from being blocked, and the permeability of the No. 1 filter 6 (or the No. 2 filter 7) is enhanced, so that the crude oil can smoothly pass through the No. 1 filter 6 (or the No. 2 filter 7), indirectly accelerating the filtering speed of the crude oil, thereby further improving the working efficiency of the crude oil filtration.
[0024] In summary, compared with most existing filtering devices, the filtering device for oil refining production in this embodiment has the following advantages: 1. By providing the rotating rod 8, the driving assembly 9 and the branch pipe 12, the fluidity of the crude oil at the top of the No. 1 filter screen 6 or the No. 2 filter screen 7 can be increased during the crude oil filtration process, thereby avoiding the problem that the impurities are blocked from flowing due to static accumulation, thereby speeding up the filtration speed of the crude oil, thereby improving the working efficiency of the crude oil filtration; 2. By providing the steam inlet pipe 10 and the steam inlet valve 11, high-temperature steam can flow inside the rotating rod 8 and the branch pipe 12, causing the temperature of the surface of the rotating rod 8 and the branch pipe 12 to rise, and transferring heat to the crude oil liquid to heat the crude oil liquid, thereby avoiding the problem of coagulation of the crude oil liquid, thereby increasing the fluidity of the crude oil liquid, and controlling the high-temperature steam to be ejected from the steam outlet hood 13 through pressure, and disperse the impurities accumulated on the top of the No. 1 filter screen 6 (or the No. 2 filter screen 7), and the impurities blocked in the mesh of the No. 1 filter screen 6 (or the No. 2 filter screen 7) will also be washed away, thereby enhancing the permeability of the No. 1 filter screen 6 (or the No. 2 filter screen 7), allowing the crude oil liquid to smoothly pass through the No. 1 filter screen 6 (or the No. 2 filter screen 7), indirectly accelerating the filtering speed of the crude oil liquid, thereby further improving the working efficiency of the crude oil liquid filtering.
[0025] Embodiment 2 See also Figure 5 and Figure 6 The filtering device for oil refining production in this embodiment is added with a lifting assembly 16 on the basis of the first embodiment. The lifting assembly 16 includes a horizontal plate 161, which is fixedly connected to one side of the top cover 2, and the bottom of the horizontal plate 161 is fixedly connected to an electric push rod 162, and the outside of the electric push rod 162 is fixedly connected to the side of the filter box 1 through a mounting plate 163, one side of the horizontal plate 161 and one side of the top cover 2 are perpendicular to each other, and the bottom of the horizontal plate 161 and the top of the electric push rod 162 are perpendicular to each other; In this embodiment, when the filtration of crude oil is completed and the impurities on the No. 1 filter 6 and the No. 2 filter 7 need to be cleaned, the electric push rod 162 is started to extend, and the electric push rod 162 uses the cross plate 161 to drive the top cover 2 to move vertically upward, so that the top cover 2 and the filter box 1 are separated, and the No. 1 filter 6 and the No. 2 filter 7 can be moved out from the inside of the filter box 1, so that the impurities adhered to the surface of the No. 1 filter 6 and the No. 2 filter 7 can be cleaned, thereby bringing convenience to the use of the filtering device.
[0026] In summary, the filtering device for oil refining production of the present embodiment, by providing a lifting assembly 16, can facilitate the removal of the No. 1 filter 6 and the No. 2 filter 7 from the interior of the filter box 1 after the crude oil is filtered, so that impurities adhering to the surfaces of the No. 1 filter 6 and the No. 2 filter 7 can be cleaned, thereby bringing convenience to the use of the filtering device.
[0027] Embodiment 3 See also Figure 7-9 The filtering device for oil refining production in this embodiment adds an intelligent control component on the basis of the second embodiment. The intelligent control component includes a liquid level sensing probe 17 and a controller 18. The liquid level sensing probe 17 is fixedly installed at the bottom of the top cover 2, and the output end of the liquid level sensing probe 17 is signal-connected to the input end of the controller 18. The controller 18 includes a signal receiving module 181, a signal processing module 182 and an instruction transmission module 183. The input of the signal receiving module 181 is signal-connected to the output end of the liquid level sensing probe 17, and the output end of the signal receiving module 181 is signal-connected to the input end of the signal processing module 182, the output end of the signal processing module 182 is signal-connected to the input end of the instruction transmission module 183, and the output end of the instruction transmission module 183 is electrically connected to the input ends of the liquid inlet valve 4 and the steam inlet valve 11 respectively; In this embodiment, when the crude oil is being filtered, the liquid level sensing probe 17 will monitor the amount of crude oil above the No. 1 filter 6 in real time, and transmit the liquid level information of the crude oil to the signal receiving module 181 in the form of a signal, and the signal receiving module 181 will transmit the received signal to the signal processing module 182, at which time the signal processing module 182 will analyze and process the signal. If the liquid level of the crude oil is high, the instruction transmission module 183 will disconnect the circuit of the liquid inlet valve 4, so that the liquid inlet valve 4 is closed, thereby stopping the transportation of the crude oil. At the same time, the instruction transmission module 183 will connect the circuit of the steam inlet valve 11, so that the high-temperature steam is continuously transported in an increased amount, so that the temperature of the crude oil in the filter box 1 will gradually increase, and the filtering speed of the crude oil will also increase, so that the liquid level of the crude oil will gradually decrease; If the liquid level of the crude oil is low, the instruction transmission module 183 will connect the circuit of the liquid inlet valve 4, so that the liquid inlet valve 4 opens, prompting the crude oil to be continuously transported to the interior of the filter box 1. At the same time, the instruction transmission module 183 will disconnect the circuit of the steam inlet valve 11 and stop the transportation of high-temperature steam. In this way, the filtration speed of the crude oil will slow down, and as the crude oil is replenished in the liquid inlet pipe 3, the liquid level of the crude oil in the filter box 1 will gradually increase, which is convenient for precise control of the amount of oil filtered in the filter box 1, thereby reflecting the intelligence of the filtering device.
[0028] In summary, the filtering device for oil refining production of the present embodiment, by providing a liquid level sensing probe 17, a controller 18, a liquid inlet valve 4 and a steam inlet valve 11, can facilitate real-time monitoring of the amount of crude oil above the No. 1 filter screen 6 during the crude oil filtration process, and can accurately control the amount of oil filtered in the filter box 1, thereby reflecting the intelligence of the filtering device.
[0029] The working principle and use process of the present invention are as follows: first, the liquid inlet valve 4 is opened, so that the crude oil liquid that needs to be filtered during oil refining production flows into the interior of the filter box 1 along the liquid inlet pipe 3. At this time, the crude oil liquid will flow downward due to its own gravity, and pass through the No. 1 filter screen 6 and the No. 2 filter screen 7 in sequence. At the same time, the driving motor 91 is turned on to rotate the driving gear 92, and the driving gear 92 drives the driven gear 93 to rotate, and the driven gear 93 drives the rotating rod 8 to rotate, so that the rotating rod 8 drives the branch pipe 12 to rotate, and the branch pipe 12 is used to drive the fluidity of the crude oil liquid on the top of the No. 1 filter screen 6 and the No. 2 filter screen 7, so that the filtering speed of the crude oil liquid can be accelerated; Then, the steam inlet valve 11 is opened, so that the high-temperature steam can flow into the interior of the rotating rod 8 along the steam inlet pipe 10, and the high-temperature steam will flow inside the rotating rod 8 and the branch pipe 12, so that the temperature of the surface of the rotating rod 8 and the branch pipe 12 can be increased, and the heat can be transferred to the crude oil liquid, so as to heat up the crude oil liquid, avoid the problem of solidification of the crude oil liquid, and thus increase the fluidity of the crude oil liquid. When the high-temperature steam pressure is adjusted to be less than the pressure of the one-way pressure safety valve 14, the one-way pressure safety valve 14 is closed. When the high-temperature steam pressure is adjusted to be greater than the pressure of the one-way pressure safety valve 14, it will be sprayed out from the steam outlet hood 13 through the one-way pressure safety valve 14, and the impurities accumulated on the top of the No. 1 filter 6 (or the No. 2 filter 7) will be dispersed at the moment of steam spraying, and the impurities blocked in the mesh of the No. 1 filter 6 (or the No. 2 filter 7) will also be washed away, so that the crude oil liquid can smoothly pass through the No. 1 filter 6 (or the No. 2 filter 7), indirectly accelerating the filtering speed of the crude oil liquid, thereby improving the working efficiency of the crude oil liquid filtering; Then, when the crude oil is being filtered, the liquid level sensor probe 17 monitors the amount of crude oil above the No. 1 filter 6 in real time, and transmits the liquid level information of the crude oil to the controller 18 in the form of a signal, and then uses the controller 18 to control the opening or closing state of the liquid inlet valve 4 and the steam inlet valve 11, and replenishes or stops the delivery of the crude oil on the top of the No. 1 filter 6 in time, so that the amount of oil filtered in the filter box 1 can be accurately controlled, thereby reflecting the intelligence of the filtering device; Finally, when the crude oil filtering is completed, the electric push rod 162 is started to extend, and the electric push rod 162 will use the cross plate 161 to drive the top cover 2 to move vertically upward, so that the top cover 2 and the filter box 1 are separated, and the No. 1 filter 6 and the No. 2 filter 7 can be moved out from the inside of the filter box 1, so that the impurities adhered to the surface of the No. 1 filter 6 and the No. 2 filter 7 can be cleaned, thereby bringing convenience to the use of the filtering device.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A filtering device for oil refining production, characterized in that: The filtering device comprises: A filter box (1), wherein a top cover (2) is arranged outside the top of the filter box (1), a mounting screw (5) is fixedly connected to the bottom of the top cover (2), and a No. 1 filter screen (6) and a No. 2 filter screen (7) are arranged outside the mounting screw (5) from top to bottom; A rotating rod (8), wherein a driving assembly (9) is arranged outside the top end of the rotating rod (8), and a steam inlet pipe (10) is movably sleeved on the top end of the rotating rod (8), a branch pipe (12) is fixedly connected to the side of the rotating rod (8), a steam outlet hood (13) is fixedly connected to the bottom of the branch pipe (12), and a one-way pressure safety valve (14) is fixedly installed outside the steam outlet hood (13).
2. The filtering device for oil refining production according to claim 1, characterized in that: A liquid inlet pipe (3) is fixedly connected to one side of the top of the top cover (2), and a liquid inlet valve (4) is fixedly installed on the outside of the liquid inlet pipe (3); a liquid discharge pipe (15) is fixedly connected to the bottom of the filter box (1), and a liquid discharge valve is fixedly installed on the outside of the liquid discharge pipe (15).
3. The filtering device for oil refining production according to claim 1, characterized in that: The mounting screw (5) is fixedly connected to the first filter screen (6) and the second filter screen (7) via a fixing ring, the fixing ring being threadedly sleeved on the outside of the mounting screw (5), the diameter of the mesh holes on the surface of the first filter screen (6) being greater than the diameter of the mesh holes on the surface of the second filter screen (7), and the first filter screen (6) and the second filter screen (7) are both movably sleeved inside the filter box (1).
4. The filtering device for oil refining production according to claim 1, characterized in that: The rotating rod (8) is movably sleeved in the middle of the top cover (2), and the rotating rod (8) is made of a metal material. The rotating rod (8) is movably sleeved in the middle of the first filter screen (6) and the second filter screen (7).
5. The filtering device for oil refining production according to claim 1, characterized in that: The driving assembly (9) comprises a driving motor (91), the driving motor (91) being fixedly mounted on the top of the top cover (2), and a driving gear (92) being fixedly sleeved on the output shaft of the driving motor (91), the outside of the driving gear (92) being meshingly connected with a driven gear (93), and the driven gear (93) being fixedly sleeved on the outside of the top end of the rotating rod (8).
6. The filtering device for oil refining production according to claim 1, characterized in that: A steam inlet valve (11) is fixedly mounted on the outside of the steam inlet pipe (10), and the branch pipe (12) is made of a metal material.
7. The filtering device for oil refining production according to claim 1, characterized in that: The filter device further comprises a lifting assembly (16), the lifting assembly (16) comprising a transverse plate (161), the transverse plate (161) being fixedly connected to one side of the top cover (2), and an electric push rod (162) being fixedly connected to the bottom of the transverse plate (161), the outside of the electric push rod (162) being fixedly connected to the side of the filter box (1) via a mounting plate (163).
8. The filtering device for oil refining production according to claim 7, characterized in that: One side of the transverse plate (161) and one side of the top cover (2) are perpendicular to each other, and the bottom of the transverse plate (161) and the top of the electric push rod (162) are perpendicular to each other.
9. The filtering device for oil refining production according to claim 1, characterized in that: The filtering device further comprises an intelligent control component, the intelligent control component comprising a liquid level sensing probe (17) and a controller (18), the liquid level sensing probe (17) being fixedly mounted on the bottom of the top cover (2), and the output end of the liquid level sensing probe (17) being signal-connected to the input end of the controller (18).
10. The filtering device for oil refining production according to claim 9, characterized in that: The controller (18) comprises a signal receiving module (181), a signal processing module (182) and an instruction transmission module (183); the input of the signal receiving module (181) is connected to the output signal of the liquid level sensing probe (17); the output of the signal receiving module (181) is connected to the input signal of the signal processing module (182); and the output of the signal processing module (182) is connected to the input signal of the instruction transmission module (183).