Petrochemical product filtering and impurity removing device

Abstract

The invention relates to the technical field of filtration and impurity removal, in particular to a petrochemical product filtration and impurity removal device which comprises a shell, an inlet, an outlet and a cover, the inlet and the outlet are formed in the two sides of the shell respectively, the cover is arranged above the shell, the device further comprises a net assembly, and the net assembly comprises an outer net and a dredging assembly rotationally arranged in the outer net. The filtering and impurity removing device for the petrochemical products comprises a dredging assembly, a flow guide strip is arranged on the side wall of the dredging assembly, a flow guide plate is further arranged at the bottom of the dredging assembly, and in the rotating direction of the dredging assembly, the tail end of the flow guide strip inclines downwards, and the tail end of the flow guide plate inclines outwards. Impurities can be guided to move in the preset direction, the tail ends of the flow guide strips incline downwards to guide the impurities attached to the side wall downwards, the tail ends of the flow guide plates incline outwards to guide the impurities to the edge area of the bottom of the dredging assembly, the natural sedimentation path of the impurities in the filtering process is changed, and the impurities are prevented from being locally accumulated on the surface of the filter screen.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of filtering and impurity removal, and particularly relates to a petroleum chemical product filtering and impurity removal device. BACKGROUND

[0002] In a petroleum chemical production process, raw materials or product streams often carry solid particles and other impurities, which can affect the product quality of subsequent process flows, damage reaction equipment or cause pipeline valve blockage. Therefore, a filtering device is one of the key equipment indispensable in the production line. Traditional filters mostly adopt a fixedly installed filter basket or filter screen structure, and impurities are trapped on the filter screen surface when fluid passes. With the continuous filtering process, impurities will continuously accumulate, which can easily cause the filter screen through holes to be blocked, increase the fluid passing resistance, significantly reduce the filtering efficiency, and even possibly cause the equipment to be over-pressured.

[0003] To solve the filter screen blockage problem, a common method is to manually clean or replace the filter screen after stopping the equipment. This method not only increases the labor intensity of the operators, but also needs to interrupt the production process, thereby affecting the overall production efficiency. Some improved filters attempt to introduce backwashing or mechanical scraping mechanisms, but these methods often need additional power sources or complex control systems, thereby increasing the equipment manufacturing cost and operation energy consumption. Some mechanical scraping designs adopt rigid metal parts, which have the risk of scratching or damaging the filter screen surface when cleaning the filter screen, thereby affecting the service life of the filter screen.

[0004] In addition, the traditional filter is insufficient in the collection and flow guiding of impurities, and the trapped impurities are often randomly accumulated at the bottom or corners of the filter basket, which is not convenient and complete for cleaning, and some impurities may be left to affect the filtering effect next time. How to realize effective flow guiding and centralized collection of impurities is also an aspect that needs to be improved. In the prior art, the utilization of the kinetic energy of the fluid itself is also limited, and the energy of fluid flow cannot be effectively converted into mechanical energy for assisting cleaning or impurity removal, thereby causing energy waste to some extent.

[0005] Therefore, the petroleum chemical field needs a filtering and impurity removal device capable of automatically delaying filter screen blockage, facilitating impurity cleaning, and reducing maintenance cost and energy consumption.

[0006] Therefore, the petroleum chemical field needs a filtering and impurity removal device capable of automatically delaying filter screen blockage, facilitating impurity cleaning, and reducing maintenance cost and energy consumption. SUMMARY

[0007] One technical problem to be solved by the application is that the petroleum chemical field needs a filtering and impurity removal device capable of automatically delaying filter screen blockage, facilitating impurity cleaning, and reducing maintenance cost and energy consumption.

[0008] To address the aforementioned technical problems, this application provides a petrochemical product filtration and impurity removal device, comprising a shell, an inlet, an outlet, and a cover. The inlet and outlet are respectively located on both sides of the shell, and the cover is located on top of the shell. The device also includes a basket assembly, which comprises an outer basket and a dredging component rotatably disposed within the outer basket. A guide strip is provided on the side wall of the dredging component, and a guide plate is also provided at the bottom of the dredging component. In the rotation direction of the dredging component, the tail end of the guide strip is inclined downward and the tail end of the guide plate is inclined outward.

[0009] In some embodiments, the unblocking component is an inner basket mesh, with guide strips disposed on the sidewalls of the inner basket mesh and guide plates disposed on the bottom plate of the inner basket mesh to guide impurities to the bottom edge of the inner basket mesh. The inner basket mesh is rotatably connected to the outer basket mesh via a connecting shaft, and the inner basket mesh can rotate around the connecting shaft under the influence of liquid flow.

[0010] In some embodiments, the unblocking component is an L-shaped scraper, with a guide strip disposed on the side of the L-shaped scraper and a guide plate disposed at the bottom of the L-shaped scraper. The bottom of the L-shaped scraper is rotatably connected to the connecting shaft, and a scraper strip is disposed on the other end facing the inner wall of the outer basket, so that the L-shaped scraper can rotate around the connecting shaft under the drive of the liquid flow.

[0011] In some embodiments, the scraper strip is made of polyurethane or rubber.

[0012] In some embodiments, the unblocking component is an L-shaped telescopic scraper, with a guide strip disposed on the side of the L-shaped telescopic scraper and a guide plate disposed at the bottom of the L-shaped telescopic scraper. The L-shaped telescopic scraper includes a lower scraper and an upper scraper. A lower scraper strip is disposed on the side of the lower scraper facing the outer basket, and an upper scraper strip is disposed on the side of the upper scraper facing the outer basket. The outer basket is configured with a slope that is lower in the front and higher in the back, and a side plate is disposed on the slope. The side plate fits into the upper scraper and the lower scraper.

[0013] In some embodiments, a space is provided on the side of the scraper, and a connecting block is provided in the space. The connecting block is fixedly connected to the upper scraper, and a spring is provided at the bottom of the connecting block. When the fluid drives the L-shaped telescopic scraper to rotate, the upper scraper automatically changes its height according to the change of the side plate.

[0014] In some embodiments, a connecting rod may be provided inside the inner basket, and a rotatable blade is provided on the connecting rod. The fluid flow drives the blade to rotate for impurity removal.

[0015] In some embodiments, another method of setting the first blade is to set the second blade in the outlet. The second blade is connected to the second bevel gear through a connecting shaft. The second bevel gear meshes with the first bevel gear set on the connecting rod. Both the first bevel gear and the second bevel gear are set inside the protective shell.

[0016] In some embodiments, a second sealing ring is provided at the connection between the top of the protective shell and the connecting rod, a first sealing ring is provided at the connection between the bottom of the protective shell and the connecting rod, and a third sealing ring is provided at the connection between the protective shell and the connecting shaft.

[0017] In some embodiments, a collection box is provided between the outer edge of the inner basket and the outer basket. Impurities are collected by providing small holes at the edge of the bottom plate of the inner basket, in conjunction with guide strips and guide plates.

[0018] This invention has at least the following beneficial effects:

[0019] 1. The unblocking component is located inside the outer basket and can rotate under the influence of fluid flow within the casing. It utilizes the system's own fluid energy, eliminating the need for an additional power source and achieving energy-saving and automated operation. The guide strips on the side walls and the guide plates at the bottom of the unblocking component systematically guide impurities to move in a predetermined direction. The downward-sloping design of the guide strips helps to guide impurities attached to the side walls downwards, while the outward-sloping design of the guide plates further guides impurities to the bottom edge area of ​​the unblocking component. This alters the natural settling path of impurities during the filtration process, effectively preventing localized accumulation of impurities on the filter surface, thereby reducing the risk of clogging and extending the service life of the filter component.

[0020] 2. The guide strips and guide plates in the device can guide impurities to flow towards the bottom edge of the inner basket, making it easier for impurities to concentrate and be processed, thereby improving the smoothness of the filtration process.

[0021] 3. The inner basket can rotate under the influence of liquid flow. This rotation not only assists in the diversion of impurities but also achieves an automatic cleaning effect, reducing the frequency and labor intensity of manual cleaning. When the inner basket is replaced with an L-shaped scraper, the scraper blades are made of polyurethane or rubber, which can remove impurities from the inner wall of the outer basket while avoiding scratches or wear on the filter screen surface, thus extending the service life of the filter screen.

[0022] 4. The L-shaped scraper is further designed as a telescopic structure, which can adapt to the bevel setting of the outer basket net, ensuring that the scraping operation remains close and effective in different positions, improving the adaptability of the device to different working conditions and enhancing the overall operational stability.

[0023] 5. The device also utilizes the energy of fluid flow to drive the connecting rod and blades to rotate, and transmits the power to the blades at the outlet through gear transmission, achieving energy self-sufficiency, reducing external power requirements, and the installation of sealing rings ensures the sealing performance of the device, prevents liquid leakage, and improves the safety and cleanliness of the operating environment.

[0024] 6. The collection box, combined with the small holes on the edge of the inner basket bottom plate, allows impurities to be collected in a concentrated manner, facilitating regular cleaning and maintenance, simplifying the impurity handling process, reducing downtime, and improving the working efficiency of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a front view of Embodiment 1 of the present invention;

[0027] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0028] Figure 4 This is a schematic diagram of the internal basket structure of Embodiment 1 of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal basket structure of Embodiment 2 of the present invention;

[0030] Figure 6 This is a schematic diagram of the internal basket structure of Embodiment 3 of the present invention;

[0031] Figure 7 This is a top view of the internal basket structure of Embodiment 3 of the invention;

[0032] Figure 8 for Figure 7 Cross-sectional view of the middle section (BB);

[0033] Figure 9 for Figure 8 Enlarged view of C;

[0034] Figure 10 This is a cross-sectional view of Embodiment 4 of the present invention;

[0035] Figure 11 This is a cross-sectional view of Embodiment 5 of the present invention;

[0036] Figure 12 for Figure 11 Enlarged view at point D;

[0037] Figure 13 This is a schematic diagram of the internal basket structure of Example 6;

[0038] Figure 14 for Figure 13 Enlarged view of point E in the middle.

[0039] In the diagram, 100 - outer casing; 200 - inlet; 300 - outlet; 400 - cover; 500 - basket assembly; 501 - outer basket; 5011 - connecting shaft; 5012 - side plate; 5013 - support seal; 502 - inner basket; 5021 - guide strip; 5022 - guide plate; 503 - L-shaped scraper; 5031 - scraper strip; 504 - L-shaped telescopic scraper; 5041 - lower scraper; 50411 - Space 1; 5042 - Upper scraper; 50421 - Connecting block; 50422 - Spring; 5043 - Lower scraper 1; 5044 - Upper scraper 1; 505 - Connecting rod; 506 - Blade 1; 507 - Protective shell; 508 - Sealing ring 1; 509 - Sealing ring 2; 510 - Sealing ring 3; 511 - Bevel gear 1; 512 - Bevel gear 2; 513 - Blade 2; 514 - Small hole; 515 - Collection box. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1, see Figures 1-4 This invention provides a technical solution: a petrochemical product filtration and impurity removal device, comprising a shell 100, an inlet 200, an outlet 300, and a cover 400, and further comprising a basket assembly 500. The inlet 200 and outlet 300 are respectively disposed on both sides of the shell 100, and the cover 400 is disposed above the shell 100. The basket assembly 500 includes an outer basket 501 and an inner basket 502. The inner sidewall of the inner basket 502 is provided with a guide strip 5021, and the bottom plate is provided with a guide plate 5022 to guide impurities to the bottom edge of the inner basket 502. The inner basket 502 is rotatably connected to the outer basket 501 via a connecting shaft 5011, and the inner basket 502 can rotate around the connecting shaft 5011 under the drive of liquid flow. The outer basket net 501 is designed with a low front and high rear bevel. The outer basket net 501 is connected to the inner wall of the device housing 100 through a support seal 5013. The contact point between the support seal 5013 at the low bevel and the inner wall of the housing 100 is located at the bottom surface of the inlet 200. The contact point between the support seal 5013 at the high bevel and the inner wall of the housing 100 is higher than the highest surface of the pipe at the outlet 300.

[0042] The working process is as follows: After the fluid enters the interior of the outer casing 100 through the inlet 200, it first flows into the inner basket 502. As the core filtration unit, the inner basket 502, with its sidewall guide strips 5021 and bottom guide plate 5022, begins to function under the action of the fluid. The fluid flow drives the inner basket 502 to rotate around the connecting shaft 5011. The guide strips 5021 guide impurities adhering to the sidewall downwards, while the guide plate 5022 pushes the impurities outwards to the edge area of ​​the bottom plate of the inner basket 502. The centrifugal force generated by the rotation accelerates the accumulation of impurities towards the edge. The fluid then flows out through the inner basket 502 into the outer basket 501. Finally, the fluid, after dual filtration and dynamic cleaning by the inner and outer baskets 502 and 501, exits the device from the outlet 300.

[0043] Specifically, the energy of the fluid's own flow and a specific flow guiding structure are used to change the movement trajectory and distribution of impurities within the filter. The aim is to delay filter clogging and improve the concentrated collection effect of impurities, thereby reducing the frequency of equipment downtime for cleaning.

[0044] The purpose of the guide strips 5021 and guide plates 5022 is to address the problem of impurities randomly adhering and accumulating on the filter screen surface. When liquid containing impurities flows through the inner basket 502, the guide strips 5021 guide the impurities adhering near the inner wall downwards, while the guide plates 5022 on the bottom plate further direct these impurities to the bottom edge area of ​​the inner basket 502. This structure alters the natural settling path of the impurities, allowing them to collect more orderly.

[0045] The inner basket 502 is rotatably connected to the outer basket 501 via a connecting shaft 5011, utilizing the kinetic energy of the fluid to convert it into mechanical rotation. As the liquid flows from the inlet 200 to the outlet 300, the flowing liquid exerts a force on the inner basket 502, causing it to slowly rotate around the connecting shaft 5011. This movement aims to ensure that the filter surface of different areas of the inner basket 502 can evenly contact the fluid and impurities, preventing excessive accumulation of impurities in fixed locations and thus avoiding localized blockages. Simultaneously, the rotation of the inner basket 502, combined with its internal flow-guiding structure, creates a dynamic flow-guiding effect, further promoting the sliding of impurities towards the designated area under centrifugal force and gravity.

[0046] The advantages of this design are as follows: First, through the synergistic effect of the guide strips 5021 and the guide plate 5022, impurities are pre-guided to the edge of the inner basket 502, facilitating subsequent collection or discharge. Second, the self-rotation of the inner basket 502 driven by the fluid gives the filtration process a dynamic adaptive characteristic, automatically balancing the dirt-holding capacity of different parts of the filter to a certain extent, thus significantly extending the effective working cycle of the filter. Finally, the entire flow guidance and rotation process is entirely driven by the system's own fluid power, requiring no external energy source or complex control system. This simplifies the device structure, improves operational reliability, and reduces energy consumption.

[0047] Example 2, see Figure 3 One configuration of the inner basket 502 is to replace it with an L-shaped scraper 503. The bottom of the L-shaped scraper 503 is rotatably connected to the connecting shaft 5011, and the other end facing the inner wall of the outer basket 501 is provided with a scraper 5031, so that the L-shaped scraper 503 can rotate around the connecting shaft 5011 under the drive of liquid flow, thereby causing the scraper 5031 to scrape away impurities from the inner wall of the outer basket 501.

[0048] The scraper blade 5031 is made of polyurethane and rubber, which ensures that it adheres to the inner wall of the filter screen to scrape away impurities, while avoiding hard metal contact that could scratch the filter screen.

[0049] Specifically, the principle behind this design lies in transforming the core functional component, replacing the inner basket 502, which primarily intercepts and guides impurities, with an L-shaped scraper 503, whose main function is to clean the outer basket 501. The working principle also utilizes the fluid's own flow energy. When liquid flows through the device, the flowing liquid exerts a force on the L-shaped scraper 503, causing it to rotate around the connecting shaft 5011. The specific shape of the L-shaped scraper 503 allows the scraper strip 5031, installed at one end facing the inner wall of the outer basket 501, to periodically approach and scrape across the filter surface of the outer basket 501 as it rotates.

[0050] The purpose of this design is to actively remove impurities adhering to the inner wall of the outer basket 501. While the outer basket 501 performs the primary filtration and interception function, the L-shaped scraper 503, as a dynamic cleaning component, aims to address the problem of impurities adhering and accumulating on the primary filter screen, leading to a reduction in its effective filtration area and an increase in flow resistance. Through continuous scraping action, the pores of the outer basket 501 can be kept clear.

[0051] The scraper blade 5031 is made of flexible materials such as polyurethane or rubber, which utilizes the elasticity and wear resistance of these materials. This design aims to effectively remove adhering impurities while the scraper blade 5031 adheres to the curved surface of the filter screen due to its flexibility, thus avoiding scratches or structural damage to the filter screen wires that might be caused by rigid metal components.

[0052] The advantages of this design are twofold: First, it provides an online, automatic filter cleaning method. Utilizing the system's own hydraulic drive, it eliminates the need for an external power source, allowing for simultaneous cleaning and maintenance during the filtration process, thus extending the continuous operating time of the outer basket 501. Second, the flexible scraper 5031 protects the filter itself while achieving the cleaning function, preventing secondary damage caused by the cleaning operation. This is beneficial for ensuring filtration accuracy and extending the overall lifespan of the filter. Finally, this configuration offers flexibility in the functional configuration of the same device. Depending on the characteristics of the impurities in the material, a more suitable mode can be selected between dynamic flow guiding and collecting (using the inner basket 502) and dynamic scraping cleaning (using the L-shaped scraper 503).

[0053] Example 3, see Figures 6-9 The L-shaped scraper 503 can be further designed as an L-shaped telescopic scraper 504. The L-shaped telescopic scraper 504 includes a lower scraper 5041 and an upper scraper 5042. The side of the lower scraper 5041 facing the outer basket 501 is provided with a lower scraper strip 5043, and the side of the upper scraper 5042 facing the outer basket 501 is provided with an upper scraper strip 5044. The outer basket 501 is designed with a slope that is lower in the front and higher in the back. The slope is provided with a side plate 5012, which fits the upper scraper 5042 and the lower scraper 5041.

[0054] The lower scraper 5041 has a space 50411 on its side. A connecting block 50421 is installed in the space 50411. The connecting block 50421 is fixedly connected to the upper scraper 5042. A spring 50422 is installed at the bottom of the connecting block 50421. When the fluid drives the L-shaped telescopic scraper 504 to rotate, the upper scraper 5042 automatically changes its height according to the change of the side plate 5012.

[0055] Specifically, the principle behind this design is to upgrade a simple lever-type scraper into a telescopic structure with adaptive adjustment capabilities. The core is that the L-shaped telescopic scraper 504 is designed as a combination of relatively movable components consisting of a lower scraper 5041 and an upper scraper 5042, and it is coordinated with a specially shaped outer basket net 501 through a mechanical structure.

[0056] The outer basket 501 features a beveled design with a lower front and higher rear, and is equipped with a side plate 5012. This structure determines the constraints on the scraper's movement trajectory. When the fluid drives the entire L-shaped telescopic scraper 504 to rotate around the connecting shaft 5011, the side plate 5012 will always engage the upper scraper 5042 and the lower scraper 5041, guiding them to move along a specific path. The space 50411 on the side of the lower scraper 5041 provides a place to accommodate the internal mechanism. The connecting block 50421, which is fixedly connected to the upper scraper 5042, is placed in this space, and the spring 50422 at the bottom of the connecting block 50421 provides elastic support for the up-and-down movement.

[0057] The purpose of this design is to address the potential cleaning dead zones or poor fit that may occur when using a fixed-size scraper on an uneven or varying-height inner wall of the filter. By dividing the scraper into two sections and allowing the upper scraper 5042 to extend and retract within a certain range relative to the lower scraper 5041, the aim is to ensure that the scraper strip 5031 closely conforms to the contour variations of the inner wall of the outer basket 501, especially in the bevel area, ensuring the continuity and consistency of the scraping effect. The spring 50422 continuously provides an outward clamping force, ensuring that the upper scraper strip 5044 on the upper scraper 5042 automatically adjusts with the height changes of the side plate 5012, always maintaining effective contact pressure.

[0058] The L-shaped telescopic scraper 504 automatically compensates for manufacturing tolerances, installation errors, and slight deformation of the filter screen, ensuring that the scraper blade 5031 maintains appropriate contact with the filter screen surface at different positions. This prevents impurities from remaining due to poor fit or premature wear of the filter screen or scraper blade 5031 due to excessive pressure. This adaptive characteristic enhances adaptability to complex operating conditions, reduces reliance on precise installation, helps maintain long-term stable filtration performance, and lowers maintenance requirements. The entire operation is still driven by hydrodynamics, requiring no external control, thus maintaining the simplicity and energy efficiency of the device.

[0059] Example 4, see Figure 10 A connecting rod 505 can also be installed inside the inner basket 502. A rotatable blade 506 is installed on the connecting rod 505. The fluid flow drives the blade 506 to rotate for impurity removal.

[0060] Specifically, this design utilizes the kinetic energy generated when fluid passes through the filtration device to drive the movement of mechanical components. When petrochemical products flow from inlet 200 into the housing 100 and through the inner basket 502, the fluid flow impacts the blades 506 mounted on the connecting rod 505. The blades 506 are designed to rotate around the connecting rod 505, thus the continuous flow of fluid drives their rotation. This rotational motion generates agitation and swirling effects in the fluid, helping to break up or disturb clumps of impurities trapped near the inner basket 502.

[0061] The main purpose of the connecting rod 505 and the blade 506 is to enhance the device's ability to handle impurities. During the filtration process, impurities easily adhere to the surface of the inner basket 502 or accumulate in specific areas, leading to a decrease in filtration efficiency. The rotation of the blade 506 continuously agitates the fluid and impurity mixture, preventing impurities from settling and promoting their flow towards the preset collection area or making them easier for the filter screen to intercept. This dynamic impurity removal method aims to maintain the long-term unobstructed flow of the inner basket 502.

[0062] The rotation of blade 506 is entirely powered by fluid flow, requiring no additional energy input and reducing the operating cost of the device. The continuous movement of blade 506 enables automatic cleaning of the inner basket 502 area, reducing the risk of clogging and extending the lifespan of the filter components. Simultaneously, this agitation effect ensures more uniform fluid distribution, improving filtration efficiency and consistency. The entire structure is integrated within the inner basket 502, occupying minimal space and maintaining the device's compactness.

[0063] Example 5, see Figures 11-12 Another method of setting blade 506 is to set blade 513 inside the outlet 300. Blade 513 is connected to bevel gear 512 through a connecting shaft. Bevel gear 512 meshes with bevel gear 511 set on connecting rod 505. Both bevel gear 511 and bevel gear 512 are set inside the protective shell 507.

[0064] A second sealing ring 509 is provided at the connection between the top of the protective shell 507 and the connecting rod 505, a first sealing ring 508 is provided at the connection between the bottom of the protective shell 507 and the connecting rod 505, and a third sealing ring 510 is provided at the connection between the protective shell 507 and the connecting shaft. The flow of liquid drives the connecting rod 505 to rotate, which in turn drives the first bevel gear 511 to rotate. Finally, the meshing of the first bevel gear 511 and the second bevel gear 512 drives the second blade 513 to rotate for impurity removal.

[0065] Specifically, this design separates the power extraction and impurity removal operations, and transmits and converts the power through a mechanical transmission mechanism. The fundamental principle remains the use of the kinetic energy of fluid flow. When the liquid flows through the inner basket 502 area, it drives the connecting rod 505 located within it to rotate. The rotation of the connecting rod 505 constitutes the initial power source of the system.

[0066] The purpose of meshing bevel gear 511 and bevel gear 512 is to change the direction of power transmission. The rotation of connecting rod 505 directly drives the rotation of bevel gear 511 connected to it. Through this pair of meshing bevel gears, the direction of rotational motion is changed, and power is transmitted to the connecting shaft connected to bevel gear 512, ultimately driving the rotation of blade 513 installed inside outlet 300. This design transfers and applies the mechanical energy generated by the fluid drive in the inner basket 502 area to the outlet 300 position.

[0067] The bevel gear 511 and bevel gear 512 are enclosed within the protective housing 507 to protect this precision transmission mechanism, isolating it from flowing petrochemical products and impurities, and preventing particulate matter intrusion that could cause gear jamming or wear. Sealing rings 509 and 508 are installed at the connection between the protective housing 507 and the connecting rod 505, and sealing ring 510 is installed at the connection between the protective housing 507 and the connecting shaft. The principle is to use elastic seals to fill gaps. The purpose of these sealing rings is to allow the shafts to rotate while strictly preventing liquid from inside the housing 100 from seeping into the protective housing 507 through gaps in the rotating parts, ensuring the airtightness of the transmission chamber.

[0068] The advantages of this design are twofold: First, it expands the flexibility of mechanical energy utilization, allowing the power collected in the inner basket 502 area, where fluid energy is concentrated, to be effectively transferred and used in other parts of the device that require movement. Second, the rotating blades 513 inside the outlet 300 provide final agitation or cutting of the fluid to be discharged, helping to break up fine impurity clumps that may have passed through the filter and are suspended near the outlet 300, thus improving the purity of the final product. The sealing system, consisting of the protective shell 507 and multiple sealing rings, reliably protects the transmission mechanism, significantly improving the long-term reliability and service life of the gear transmission under harsh operating conditions. The entire system maintains its self-sufficient energy characteristics, requiring no external power intervention.

[0069] Example 6, see Figures 13-14 A collection box 515 is provided between the outer edge of the inner basket 502 and the outer basket 501. Impurities are collected by setting small holes 514 on the edge of the bottom plate of the inner basket 502, in conjunction with the guide strip 5021 and the guide plate 5022.

[0070] Specifically, the principle behind this design is to construct a complete impurity guiding and collection path, integrating filtration, flow guidance, concentration, and storage functions. Its operation relies on the existing flow guidance structure within the inner basket 502. The function of the flow guide strips 5021 and the flow guide plates 5022 is to systematically guide the intercepted impurities to the edge area of ​​the bottom plate of the inner basket 502.

[0071] Small holes 514 are provided at the edge of the bottom plate of the inner basket 502. The principle is to create a specific channel that allows impurities to pass through. Impurities guided to the edge can be discharged from the internal cavity of the inner basket 502 through these small holes 514 under the action of fluid force and their own gravity. The purpose of setting these small holes 514 is to provide impurities with a controlled outlet, allowing them to leave the main filtration area.

[0072] A collection box 515 is provided in the gap between the outer edge of the inner basket 502 and the outer basket 501 to receive impurities discharged from the small hole 514. The collection box 515 acts as a separate container specifically for containing and temporarily storing these separated solid particles. This design allows the impurities to be guided in an orderly manner to a fixed and easily managed area.

[0073] The fundamental purpose of this entire design is to achieve effective separation and centralized management of impurities. It changes the state of impurities in traditional filters, which are randomly scattered inside or at the bottom of the filter basket. Through active flow guidance and directional discharge, impurities are collected to a designated collection point.

[0074] The advantages of this design are twofold: First, it greatly simplifies maintenance. When cleaning impurities is required, operators can target the contents of collection box 515 without needing to open the entire basket assembly 500 or interrupt the main process, thus simplifying cleaning procedures and reducing downtime. Second, by promptly removing impurities from the main filtration area, the clogging pressure on the inner and outer baskets 502 is reduced, helping to maintain more stable and sustained filtration efficiency. Finally, centralized impurity collection also reduces the risk of contamination to other areas within the device, contributing to maintaining the cleanliness of the equipment's interior.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0076] Although embodiments of the 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 invention.

Claims

1. A petroleum chemical product filtering and impurity removing device, comprising a shell (100), an inlet (200), an outlet (300) and a cover (400), the inlet (200) and the outlet (300) are respectively arranged on both sides of the shell (100), and the cover (400) is arranged above the shell (100), characterized in that: Also include the basket net assembly (500), the basket net assembly (500) includes the outer basket net (501) and the rotation setting in the outer basket net (501) unobstructed assembly, the side wall of the unobstructed assembly is provided with the guide vane (5021), and the unobstructed assembly bottom is also provided with the guide plate (5022), in the rotation direction of the unobstructed assembly, the tail end of the guide vane (5021) is inclined downward and the tail end of the guide plate (5022) is inclined outward.

2. The petroleum chemical product filtering and impurity removing device according to claim 1, characterized in that: The unobstructed assembly is an inner basket net (502), the guide vane (5021) is arranged on the side wall of the inner basket net (502), and the guide plate (5022) is arranged on the bottom plate of the inner basket net (502) to guide the impurities to the edge of the bottom of the inner basket net (502), the inner basket net (502) is rotatably connected with the outer basket net (501) through a connecting shaft (5011), and the inner basket net (502) can rotate around the connecting shaft (5011) under the driving of liquid flow.

3. The petroleum chemical product filtering and impurity removing device according to claim 2, characterized in that: The unobstructed assembly is an L-shaped scraper (503), the guide vane (5021) is arranged on the side edge of the L-shaped scraper (503), the guide plate (5022) is arranged on the bottom of the L-shaped scraper (503), the bottom of the L-shaped scraper (503) is rotatably connected with the connecting shaft (5011), and one end of the L-shaped scraper (503) is provided with a scraping strip (5031) facing one side of the inner wall of the outer basket net (501), so that the L-shaped scraper (503) rotates around the connecting shaft (5011) under the driving of liquid flow.

4. The petroleum chemical product filtering and impurity removing device according to claim 3, characterized in that: The scraping strip (5031) is made of polyurethane or rubber.

5. The petroleum chemical product filtering and impurity removing device according to claim 4, characterized in that: The unobstructed assembly is an L-shaped telescopic scraper (504), the guide vane (5021) is arranged on the side edge of the L-shaped telescopic scraper (504), the guide plate (5022) is arranged on the bottom of the L-shaped telescopic scraper (504), the L-shaped telescopic scraper (504) includes a lower scraper (5041) and an upper scraper (5042), one side of the lower scraper (5041) facing the outer basket net (501) is provided with a lower scraping strip (5043), and one side of the upper scraper (5042) facing the outer basket net (501) is provided with an upper scraping strip (5044), the outer basket net (501) is provided with a front-low rear-high bevel, and the bevel is provided with a side plate (5012) which just clamps the upper scraper (5042) and the lower scraper (5041).

6. The petroleum chemical product filtering and impurity removing device according to claim 5, characterized in that: The side surface of the lower scraper (5041) is provided with a space (50411), the space (50411) is provided with a connecting block (50421), the connecting block (50421) is fixedly connected with the upper scraper (5042), and the bottom of the connecting block (50421) is provided with a spring (50422), when the L-shaped telescopic scraper (504) rotates under the driving of fluid, the upper scraper (5042) automatically changes the height according to the change of the side plate (5012).

7. The petroleum chemical product filtering and impurity removing device according to claim 6, characterized in that: The inner basket net (502) can be further provided with a connecting rod (505), and a rotatable blade one (506) is arranged on the connecting rod (505), and the fluid flow drives the blade one (506) to rotate to remove impurities.

8. The petroleum chemical product filtering and impurity removing device according to claim 7, characterized in that: Another arrangement method of the blade one (506) is to arrange a blade two (513) in the outlet (300), the blade two (513) is connected with a bevel gear two (512) through a connecting shaft, the bevel gear two (512) is engaged with a bevel gear one (511) arranged on the connecting rod (505), and the bevel gear one (511) and the bevel gear two (512) are arranged in a protective shell (507).

9. The petroleum chemical product filtering and impurity removing device according to claim 8, characterized in that: A sealing ring two (509) is arranged at the connecting position of the top of the protective shell (507) and the connecting rod (505), a sealing ring one (508) is arranged at the connecting position of the bottom of the protective shell (507) and the connecting rod (505), and a sealing ring three (510) is arranged at the connecting position of the protective shell (507) and the connecting shaft.

10. The petroleum chemical product filtering and impurity removing device according to claim 9, characterized in that: A collecting box (515) is arranged between the outer wall edge of the inner basket net (502) and the outer basket net (501), small holes (514) are arranged at the bottom plate edge of the inner basket net (502), and the impurities are collected through cooperation of the flow guide strips (5021) and the flow guide plates (5022).

Images