Petrochemical product filtering and impurity removing device and method

Abstract

The invention belongs to the technical field of petroleum processing equipment, and particularly relates to a petrochemical product filtering and impurity removing device and method.The petrochemical product filtering and impurity removing device comprises an impurity removing box, an impurity removing mechanism is installed on the inner wall of the impurity removing box and comprises a filtering net plate and a filtering net bag, the filtering net plate is in a door plate shape, and the section of the filtering net bag is in an arc shape; the inner wall of the impurity removal box is slidably connected with a mounting frame, and the inner wall of the mounting frame is fixedly connected with and aligned to the outer surface of the filter screen plate. According to the filtering and impurity removing device and method for the petrochemical products, the impurity removing mechanism is installed in the impurity removing box, a filter screen plate and a filter net bag in the impurity removing mechanism are matched, chemical raw materials are filtered through horizontal movement and vertical lifting, the process is relatively slow, and the impurity removing efficiency is improved. Temperature rise and deterioration of chemical raw materials caused by high-speed operation of equipment are avoided, bubbles are reduced, and it is avoided that a large number of bubbles are dissolved in to affect later processing of the chemical raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of processing equipment, and in particular to a device and method for filtering and removing impurities from petrochemical products. Background Art

[0002] A fine petrochemical product filtering and impurity removal device (application number: 202110435410.9) disclosed on the Chinese patent website solves the technical problem that the existing filtering device usually sets a filter screen in a box to remove impurities, which not only has low filtering efficiency but is also inconvenient to replace the filter. However, the following problems still exist: In actual use, although stirring can drive impurities in petrochemical raw materials to move and then capture them through filters, excessive stirring increases local friction, thereby generating more heat. Especially in high-viscosity or high-density liquids, the increase in temperature will affect the subsequent chemical reaction rate of petrochemical raw materials or change the physical properties of the product, thereby causing unstable product quality. At the same time, during the stirring process, excessive mixing of gas into the liquid may form bubbles or increase the amount of dissolved gas in the liquid, which may lead to the precipitation of bubbles in subsequent operations, thereby affecting the purity, appearance or stability of the product, making it inconvenient to use. Summary of the invention

[0003] Based on the technical problem that the existing petrochemical product filtering and impurity removal equipment overly relies on stirring, which affects the subsequent processing and use, the present invention proposes a petrochemical product filtering and impurity removal device and method.

[0004] The present invention provides a petrochemical product filtering and impurity removal device, comprising an impurity removal box, an impurity removal mechanism is installed on the inner wall of the impurity removal box, the impurity removal mechanism comprises a filter screen plate and a filter net bag, the filter screen plate is in the shape of a door plate, the cross section of the filter net bag is in an arc shape, the inner wall of the impurity removal box is slidably connected with a mounting frame, the inner wall of the mounting frame is fixedly connected and aligned with the outer surface of the filter screen plate, and the outer surface edge of the mounting frame is adapted to the inner wall of the impurity removal box; A driving mechanism is installed between two adjacent filter screens, and the driving mechanism includes a buoyancy column, and the buoyancy column includes an upper buoyancy column and a lower buoyancy column, and the buoyancy column is made of a compressed air bag, and a compression spring is fixedly sleeved on the outer surface of the lower buoyancy column, and a storage trough is provided on the lower surface of the lower buoyancy column, and a plurality of the storage troughs are distributed in a linear array, and a wear-resistant disk is fixedly connected to the end of the buoyancy column, and the surface of the wear-resistant disk is slidably connected to the surface of the filter screen, and one end of the compression spring is fixedly connected to the side wall surface of the wear-resistant disk, wherein the surface of the lower wear-resistant disk is fixedly connected to a connecting rod, and the storage trough is used to store the raw materials, thereby facilitating the reduction of excessive lifting of the chemical raw material liquid level in the impurity removal box due to the expansion of the buoyancy column.

[0005] Preferably, the two installation frames are located in the middle of the debris removal box, and the two filter net bags are respectively located on the outside of the two installation frames. A scraper is fixedly connected to the surface of the filter net bag, and the scraper and filter net bag are combined in a concave shape. The upper edge of the scraper is slidably connected to the surface of the filter mesh plate.

[0006] Through the above technical solution, a filter net bag is prepared by using hard metal wire, and the filter net bag is combined with a scraper to collect impurities, thereby facilitating the collection of impurities.

[0007] Preferably, the surface of the mounting frame is slidably connected to a hinge seat, the surfaces of the two hinge seats on the same side are rotatably connected to the upper end surface of the filter net bag through a rotating shaft, a sliding groove is provided on the surface of the mounting frame, the cross-section of the sliding groove is T-shaped, the surface of the hinge seat is fixedly connected to a clamping rod, and the inner wall of the sliding groove is slidably connected to the surface of the clamping rod.

[0008] Through the above technical solution, the filter net bag is movably installed on the surface of the hinged seat, so that the impurities can be dumped out by deflecting the filter net bag.

[0009] Preferably, the inner wall of the slide groove is fixedly connected with a thrust spring, the end surface of the thrust spring is fixedly connected with an extrusion rod, the extrusion rod is located inside the slide groove, the upper and lower ends of the inner wall of the debris removal box are fixedly connected with insertion rods, the ends of the plurality of insertion rods are respectively aligned with the upper and lower ends of the slide groove, and the end of the clamping rod is fixedly connected to the surface of the connecting rod.

[0010] Through the above technical scheme, multiple thrust elastic springs are used to push the extrusion rod, so that the extrusion rod cooperates with the inner wall of the slide groove to tightly fix the clamping rod, thereby facilitating the prevention of the floating of the hinge seat. Rubber strips can also be installed on the surface of the extrusion rod to further increase the friction on the surface of the clamping rod, thereby fixing the clamping rod.

[0011] Preferably, an equipment rack is fixedly connected to the upper surface of the impurity removal box, the equipment rack is U-shaped, an air pump is fixedly connected to the upper surface of the equipment rack, and an air delivery hose is installed on the surface of the air pump.

[0012] Through the above technical solution, the air pump is used as the only power source, which makes it easy to reduce equipment loss during use and subsequent maintenance costs. In order to facilitate the control of the gas hose, a solenoid valve can also be installed on the surface of the gas hose. At the same time, the air pump is specifically a two-way air pump, and inflation and suction can be achieved through one gas hose. When selecting air pumps of other specifications, it is necessary to add gas hoses according to actual conditions.

[0013] Preferably, the lower end of the air delivery hose is fixedly connected to a buoyancy frame, the buoyancy frame is in the shape of a hollow rectangular frame, the buoyancy frame is located between two mounting frames, the inner side wall of the buoyancy frame is fixedly connected to a mounting seat, and the other end of the compression spring is fixedly connected to the side wall surface of the mounting seat.

[0014] Through the above technical solution, the buoyancy column is installed using the buoyancy frame and the mounting seat, so as to facilitate the combination of multiple buoyancy columns to increase the buoyancy. Additional air bags can also be added to the inner side of the buoyancy frame to further enhance the buoyancy of the mechanism.

[0015] Preferably, the interior of the mounting seat is connected to the interior of the gas hose through a buoyancy frame, both side surfaces of the mounting seat are fixedly connected and connected to the buoyancy column, and a limiting groove is provided on the inner side wall of the equipment rack, and the inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame.

[0016] Through the above technical solution, the buoyancy frame is limited by the limiting groove, so as to prevent the buoyancy frame from being deflected after the filter screen plate falls off the surface of the buoyancy frame.

[0017] Preferably, the inner wall of the upper end of the buoyancy frame is rotatably connected to a push rod via a rotating shaft, a movable rod is hinged at the lower end of the push rod, the lower end surface of the movable rod is slidably connected to the inner wall of the limiting groove, and a push ring is hinged on the lower end surface of the push rod, and the push ring is slidably sleeved on the surface of the gas hose.

[0018] Through the above technical solution, the push ring is used to push the gas hose to bend, thereby facilitating the contraction of the gas hose.

[0019] Preferably, a feed pipe is fixedly connected to one side surface of the impurity removal box, and the two feed pipes are respectively located on both sides of the buoyancy frame. A discharge pipe is fixedly connected to the other side surface of the impurity removal box, and the discharge pipe is located between two filter screens.

[0020] Through the above technical solution, the raw materials are injected into both sides of the filter screen plate by using the feed pipe, so that filtering is facilitated by the movement of the filter screen plate.

[0021] A method for filtering and removing impurities from petrochemical products, the method comprising: Step 1: When in use, the air pump sucks the gas in the buoyancy frame and the buoyancy column through the air delivery hose, the lower buoyancy column is folded and contracted to the surface of the mounting seat under the drive of the compression spring, the wear-resistant disc drives the hinged seat to approach the surface of the buoyancy frame through the connecting rod, the hinged seat drives the filter screen plate to fit the surface of the buoyancy frame through the filter net bag, and the chemical raw materials are injected into the impurity removal box through two feed pipes; Step 2: After the chemical raw materials are injected, the air pump is started. The air pump injects gas into the buoyancy frame and the buoyancy column through the air delivery hose. The buoyancy column expands after being inflated, and the compression spring is stretched. The upper buoyancy column and the lower buoyancy column push the two filter screens to move to the two sides of the impurity removal box. The filter screen performs preliminary filtering on the impurities in the impurity removal box, and as the filter screen and the installation frame move, the edge of the filter net bag contacts the inner wall of the impurity removal box; Step 3: At the same time, the insertion rod is inserted into the slide groove on the surface of the installation frame, the extrusion rod is pushed open, the surface of the clamp rod loses the extrusion of the extrusion rod, and the buoyancy of the buoyancy column in the chemical raw material drives the hinge seat and the filter net bag to float up. When the filter net bag floats up, the chemical raw material is filtered twice, and the impurities adhered to the surface of the filter screen are scraped off by the scraper. The scraped impurities are captured by the filter net bag. After floating out of the surface of the chemical raw material on the filter net bag, the impurities are dumped outward by deflecting the filter net bag; Step 4: While the buoyancy column drives the filter net bag to float up, the buoyancy frame also floats up on the inner side of the equipment frame. The upper surface of the buoyancy frame squeezes the movable rod, the movable rod pushes the push rod, and the push ring on the surface of the push rod bends the gas hose to tighten the gas hose.

[0022] The beneficial effects of the present invention are: 1. Install a cleaning mechanism in the cleaning box, use the filter screen plate and filter net bag in the cleaning mechanism to cooperate, and filter the chemical raw materials through horizontal movement and vertical lifting respectively. The process is relatively slow, which avoids the high-speed operation of the equipment causing the chemical raw materials to heat up and deteriorate. At the same time, it reduces the generation of bubbles and avoids the dissolution of a large number of bubbles, which affects the later processing of chemical raw materials.

[0023] 2. By setting the air pump in the driving mechanism as the only power source, the air pump is used to inflate the buoyancy column, so that the buoyancy column pushes the filter screen in the filter mechanism to move horizontally. At the same time, the buoyancy of the buoyancy column in the liquid chemical raw material is used to drive the filter net bag to float, thereby realizing the driving of the floating filter mechanism in two different directions, and assisting the filter mechanism to complete the filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 2 This is a cross-sectional view of the impurity removal box structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 3 This is a diagram of the deflection state of the filter net bag structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 4 This is a cross-sectional view of the extrusion rod structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 5 This is a cross-sectional view of the filter net bag structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 6 A cross-sectional view of a buoyancy frame structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 7 This is a cross-sectional view of the lower buoyancy column structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Figure 8 A three-dimensional diagram of the gas delivery hose structure of a petrochemical product filtering and impurity removal device proposed by the present invention; Fig. 9 This is a three-dimensional diagram of the filtering scoop structure of a petrochemical product filtering and impurity removal device proposed by the present invention.

[0025] In the figure: 1. debris removal box; 2. filter screen plate; 21. filter net bag; 22. mounting frame; 23. scraper; 24. hinged seat; 25. clamping rod; 26. thrust spring; 27. extrusion rod; 28. insertion rod; 29. ​​filter scoop net; 3. upper buoyancy column; 31. lower buoyancy column; 32. compression spring; 33. storage trough; 34. wear-resistant disc; 35. connecting rod; 36. equipment rack; 37. air pump; 38. air hose; 39. buoyancy frame; 310. mounting seat; 311. push rod; 312. movable rod; 313. push ring; 4. feed pipe; 5. discharge pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-Figure 8 A device for filtering and removing impurities from petrochemical products, comprising an impurity removal box 1, an impurity removal mechanism is installed on the inner wall of the impurity removal box 1, the impurity removal mechanism comprises a filter screen plate 2 and a filter net bag 21, the filter screen plate 2 is in the shape of a door plate, the cross section of the filter net bag 21 is in an arc shape, the inner wall of the impurity removal box 1 is slidably connected with a mounting frame 22, the inner wall of the mounting frame 22 is fixedly connected and aligned with the outer surface of the filter screen plate 2, and the outer surface edge of the mounting frame 22 is adapted to the inner wall of the impurity removal box 1; A driving mechanism is installed between two adjacent filter screens 2, and the driving mechanism includes a buoyancy column, and the buoyancy column includes an upper buoyancy column 3 and a lower buoyancy column 31. The buoyancy column is made of a compressed air bag, and a compression spring 32 is fixedly sleeved on the outer surface of the lower buoyancy column 31. A storage trough 33 is opened on the lower surface of the lower buoyancy column 31, and multiple storage troughs 33 are distributed in a linear array. A wear-resistant disk 34 is fixedly connected to the end of the buoyancy column, and the surface of the wear-resistant disk 34 is slidably connected to the surface of the filter screen 2. One end of the compression spring 32 is fixedly connected to the side wall surface of the wear-resistant disk 34, wherein the surface of the lower wear-resistant disk 34 is fixedly connected to a connecting rod 35, and the storage trough 33 is used to store raw materials, thereby facilitating the reduction of excessive lifting of the chemical raw material liquid level in the impurity removal box 1 due to the expansion of the buoyancy column.

[0028] The filter screen 21 is provided with a plurality of support members 22, each of which is provided with a plurality of support members 23. The support members 23 are provided with a plurality of support members 24, each of which is provided with a plurality of support members 26. The support members 23 are provided with a plurality of support members 27.

[0029] In order to control the floating of the filter net bag 21, a thrust spring 26 is fixedly connected to the inner wall of the slide, and an extrusion rod 27 is fixedly connected to the end surface of the thrust spring 26. The extrusion rod 27 is located inside the slide, and the upper and lower ends of the inner wall of the debris removal box 1 are fixedly connected with insertion rods 28. The ends of multiple insertion rods 28 are respectively aligned with the upper and lower ends of the slide, and the end of the clamping rod 25 is fixedly connected to the surface of the connecting rod 35. Multiple thrust elastic springs are used to push the extrusion rod 27, so that the extrusion rod 27 cooperates with the inner wall of the slide to tightly fix the clamping rod 25, thereby facilitating the obstruction of the floating of the hinged seat 24.

[0030] By installing a cleaning mechanism in the cleaning box 1, the filter screen plate 2 and the filter net bag 21 in the cleaning mechanism are used to cooperate, and the chemical raw materials are filtered by horizontal movement and vertical lifting respectively. The process is relatively slow, which avoids the high-speed operation of the equipment causing the chemical raw materials to heat up and deteriorate. At the same time, the generation of bubbles is reduced, and a large number of bubbles are prevented from dissolving, which affects the later processing of the chemical raw materials.

[0031] In order to drive the filtering mechanism, an equipment frame 36 is fixedly connected to the upper surface of the impurity removal box 1. The equipment frame 36 is U-shaped. An air pump 37 is fixedly connected to the upper surface of the equipment frame 36. An air hose 38 is installed on the surface of the air pump 37. The air pump 37 is used as the only power source to reduce equipment loss during use and subsequent maintenance costs. In order to facilitate the control of the air hose 38, a solenoid valve can also be installed on the surface of the air hose 38. At the same time, the air pump 37 is specifically a two-way air pump 37. Inflation and suction can be achieved through one air hose 38. When selecting an air pump 37 of other specifications, it is necessary to add an air hose 38 according to actual conditions.

[0032] By setting the air pump 37 in the driving mechanism as the only power source, the air pump 37 is used to inflate the buoyancy column, so that the buoyancy column pushes the filter mesh plate 2 in the filtering mechanism to move horizontally. At the same time, the buoyancy of the buoyancy column in the liquid chemical raw material is used to drive the filter net bag 21 to float, thereby realizing the driving of the floating filtering mechanism in two different directions, assisting the filtering mechanism to complete the filtration.

[0033] In order to install the buoyancy column, a buoyancy frame 39 is fixedly connected to the lower end of the air delivery hose 38. The buoyancy frame 39 is in the shape of a hollow rectangular frame. The buoyancy frame 39 is located between the two mounting frames 22. The inner side wall of the buoyancy frame 39 is fixedly connected to a mounting seat 310. The other end of the compression spring 32 is fixedly connected to the side wall surface of the mounting seat 310. The buoyancy column is installed using the buoyancy frame 39 and the mounting seat 310, so as to facilitate the combination of multiple buoyancy columns and increase buoyancy. An additional air bag is added on the inside to further enhance the buoyancy of the mechanism. The interior of the mounting seat 310 is connected to the interior of the air hose 38 through the buoyancy frame 39. Both side surfaces of the mounting seat 310 are fixedly connected and connected to the buoyancy column. A limiting groove is provided on the inner wall of the equipment frame 36. The inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame 39. The buoyancy frame 39 is limited by the limiting groove, thereby preventing the buoyancy frame 39 from being tilted after the filter screen plate 2 falls off the surface of the buoyancy frame 39.

[0034] The upper inner wall of the buoyancy frame 39 is provided with a push rod 311 which is rotatably connected to the push rod 311 through a rotating shaft. The lower end of the push rod 311 is hinged with a movable rod 312. The lower end surface of the movable rod 312 is slidably connected to the inner wall of the limiting groove. The lower end surface of the push rod 311 is hinged with a push ring 313. The push ring 313 is slidably sleeved on the surface of the gas hose 38. The push ring 313 is used to push the gas hose 38 to bend, so as to facilitate the contraction of the gas hose 38. A feed pipe 4 is fixedly connected to the surface of one side of the impurity removal box 1. The two feed pipes 4 are respectively located on both sides of the buoyancy frame 39. A discharge pipe 5 is fixedly connected to the surface of the other side of the impurity removal box 1. The discharge pipe 5 is located between the two filter screens 2. The feed pipe 4 is used to inject the raw material into both sides of the filter screen 2, so as to facilitate filtering by moving the filter screen 2.

[0035] A method for filtering and removing impurities from petrochemical products, the method comprising: Step 1: When in use, the air pump 37 draws the gas in the buoyancy frame 39 and the buoyancy column through the air delivery hose 38, the lower buoyancy column 31 is folded and contracted toward the surface of the mounting seat 310 under the drive of the compression spring 32, the wear-resistant disc 34 drives the hinged seat 24 to approach the surface of the buoyancy frame 39 through the connecting rod 35, the hinged seat 24 drives the filter screen plate 2 to fit the surface of the buoyancy frame 39 through the filter net bag 21, and the chemical raw materials are injected into the impurity removal box 1 through the two feed pipes 4; Step 2: After the chemical raw material is injected, start the air pump 37, and the air pump 37 injects gas into the buoyancy frame 39 and the buoyancy column through the air hose 38. The buoyancy column expands after being inflated, and the compression spring 32 is stretched. The upper buoyancy column 3 and the lower buoyancy column 31 push the two filter screens 2 to move to the two sides of the impurity removal box 1. The filter screen 2 performs preliminary filtering on the impurities in the impurity removal box 1, and as the filter screen 2 and the mounting frame 22 move, the edge of the filter net bag 21 contacts the inner wall of the impurity removal box 1; Step 3, at the same time, the insertion rod 28 is inserted into the slide groove on the surface of the installation frame 22, the squeezing rod 27 is pushed open, the surface of the clamping rod 25 loses the squeezing of the squeezing rod 27, and the buoyancy of the buoyancy column in the chemical raw material drives the hinge seat 24 and the filter net bag 21 to float up. When the filter net bag 21 floats up, the chemical raw material is filtered twice, and the impurities adhered to the surface of the filter mesh plate 2 are scraped off by the scraper 23. The scraped impurities are captured by the filter net bag 21. After floating on the surface of the chemical raw material on the filter net bag 21, the impurities are dumped outward by deflecting the filter net bag 21; Step 4, while the buoyancy column drives the filter net bag 21 to float up, the buoyancy frame 39 floats up together on the inner side of the equipment frame 36, the upper surface of the buoyancy frame 39 squeezes the movable rod 312, the movable rod 312 pushes the push rod 311, and the push ring 313 on the surface of the push rod 311 bends the gas hose 38 to converge the gas hose 38.

[0036] Example 1: Reference Figure 1-Figure 4 and Figure 6-Figure 9 A device for filtering and removing impurities from petrochemical products comprises an impurity removal box 1, an impurity removal mechanism is installed on the inner wall of the impurity removal box 1, the impurity removal mechanism comprises a filter screen plate 2 and a filter scoop net 29, the filter screen plate 2 is in the shape of a door plate, the lower surface of the filter scoop net 29 is fitted with the inner bottom wall of the impurity removal box 1, an installation frame 22 is slidably connected to the inner wall of the impurity removal box 1, the inner wall of the installation frame 22 is fixedly connected and aligned with the outer surface of the filter screen plate 2, and the outer surface edge of the installation frame 22 is adapted to the inner wall of the impurity removal box 1; A driving mechanism is installed between two adjacent filter screens 2, and the driving mechanism includes a buoyancy column, and the buoyancy column includes an upper buoyancy column 3 and a lower buoyancy column 31. The buoyancy column is made of a compressed air bag, and a compression spring 32 is fixedly sleeved on the outer surface of the lower buoyancy column 31. A storage trough 33 is opened on the lower surface of the lower buoyancy column 31, and multiple storage troughs 33 are distributed in a linear array. A wear-resistant disk 34 is fixedly connected to the end of the buoyancy column, and the surface of the wear-resistant disk 34 is slidably connected to the surface of the filter screen 2. One end of the compression spring 32 is fixedly connected to the side wall surface of the wear-resistant disk 34, wherein the surface of the lower wear-resistant disk 34 is fixedly connected to a connecting rod 35, and the storage trough 33 is used to store raw materials, thereby facilitating the reduction of excessive lifting of the chemical raw material liquid level in the impurity removal box 1 due to the expansion of the buoyancy column.

[0037] In order to assist the filter screen plate 2 in filtering, the two installation frames 22 are both located in the middle of the impurity removal box 1, and the two filter scoop nets 29 are respectively located on the outside of the two installation frames 22. The surface of the filter scoop net 29 is fixedly connected with a scraper 23. The scraper 23 and the filter scoop net 29 are combined in a triangular prism shape. The upper edge of the scraper 23 is slidably connected to the surface of the filter screen plate 2. The filter scoop net 29 is prepared by hard metal wire, and the filter scoop net 29 is combined with the scraper 23 to collect impurities, thereby facilitating the collection of impurities, and passing through the net bag and the inner part of the impurity removal box 1. The bottom wall fits together, so it is convenient to collect the sediment. The surface of the mounting frame 22 is slidably connected with a hinge seat 24. The surfaces of the two hinge seats 24 on the same side are rotatably connected to the upper end surface of the filter scoop net 29 through a rotating shaft. A slide groove is opened on the surface of the mounting frame 22. The cross-section of the slide groove is T-shaped. The surface of the hinge seat 24 is fixedly connected with a clamping rod 25. The inner wall of the slide groove is slidably connected to the surface of the clamping rod 25. The filter scoop net 29 is movably installed on the surface of the hinge seat 24, so that the filter scoop net 29 can be deflected to facilitate the dumping of impurities.

[0038] In order to control the floating of the filter scoop net 29, a thrust spring 26 is fixedly connected to the inner wall of the slide groove, and an extrusion rod 27 is fixedly connected to the end surface of the thrust spring 26. The extrusion rod 27 is located inside the slide groove, and the upper and lower ends of the inner wall of the debris removal box 1 are fixedly connected with insertion rods 28. The ends of multiple insertion rods 28 are respectively aligned with the upper and lower ends of the slide groove. The end of the clamping rod 25 is fixedly connected to the surface of the connecting rod 35. Multiple thrust elastic springs are used to push the extrusion rod 27, so that the extrusion rod 27 cooperates with the inner wall of the slide groove to tightly fix the clamping rod 25, thereby facilitating the obstruction of the floating of the hinged seat 24.

[0039] By installing a cleaning mechanism in the cleaning box 1, the filter screen plate 2 and the filter scoop net 29 in the cleaning mechanism are used to cooperate, and the chemical raw materials are filtered by horizontal movement and vertical lifting respectively. The process is relatively slow, which avoids the high-speed operation of the equipment causing the chemical raw materials to heat up and deteriorate. At the same time, the generation of bubbles is reduced, and a large number of bubbles are prevented from dissolving, which affects the later processing of the chemical raw materials.

[0040] In order to drive the filtering mechanism, an equipment frame 36 is fixedly connected to the upper surface of the impurity removal box 1. The equipment frame 36 is U-shaped. An air pump 37 is fixedly connected to the upper surface of the equipment frame 36. An air hose 38 is installed on the surface of the air pump 37. The air pump 37 is used as the only power source to reduce equipment loss during use and subsequent maintenance costs. In order to facilitate the control of the air hose 38, a solenoid valve can also be installed on the surface of the air hose 38. At the same time, the air pump 37 is specifically a two-way air pump 37. Inflation and suction can be achieved through one air hose 38. When selecting an air pump 37 of other specifications, it is necessary to add an air hose 38 according to actual conditions.

[0041] By setting the air pump 37 in the driving mechanism as the only power source, the air pump 37 is used to inflate the buoyancy column, so that the buoyancy column pushes the filter screen plate 2 in the filtering mechanism to move horizontally. At the same time, the buoyancy of the buoyancy column in the liquid chemical raw material is used to drive the filter scoop net 29 to float up, thereby realizing the driving of the floating filtering mechanism in two different directions, and assisting the filtering mechanism to complete the filtration.

[0042] In order to install the buoyancy column, a buoyancy frame 39 is fixedly connected to the lower end of the air delivery hose 38. The buoyancy frame 39 is in the shape of a hollow rectangular frame. The buoyancy frame 39 is located between the two mounting frames 22. The inner side wall of the buoyancy frame 39 is fixedly connected to a mounting seat 310. The other end of the compression spring 32 is fixedly connected to the side wall surface of the mounting seat 310. The buoyancy column is installed using the buoyancy frame 39 and the mounting seat 310, so as to facilitate the combination of multiple buoyancy columns and increase buoyancy. An additional air bag is added on the inside to further enhance the buoyancy of the mechanism. The interior of the mounting seat 310 is connected to the interior of the air hose 38 through the buoyancy frame 39. Both side surfaces of the mounting seat 310 are fixedly connected and connected to the buoyancy column. A limiting groove is provided on the inner wall of the equipment frame 36. The inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame 39. The buoyancy frame 39 is limited by the limiting groove, thereby preventing the buoyancy frame 39 from being tilted after the filter screen plate 2 falls off the surface of the buoyancy frame 39.

[0043] The upper inner wall of the buoyancy frame 39 is provided with a push rod 311 which is rotatably connected to the push rod 311 through a rotating shaft. The lower end of the push rod 311 is hinged with a movable rod 312. The lower end surface of the movable rod 312 is slidably connected to the inner wall of the limiting groove. The lower end surface of the push rod 311 is hinged with a push ring 313. The push ring 313 is slidably sleeved on the surface of the gas hose 38. The push ring 313 is used to push the gas hose 38 to bend, so as to facilitate the contraction of the gas hose 38. A feed pipe 4 is fixedly connected to the surface of one side of the impurity removal box 1. The two feed pipes 4 are respectively located on both sides of the buoyancy frame 39. A discharge pipe 5 is fixedly connected to the surface of the other side of the impurity removal box 1. The discharge pipe 5 is located between the two filter screens 2. The feed pipe 4 is used to inject the raw material into both sides of the filter screen 2, so as to facilitate filtering by moving the filter screen 2.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A petrochemical product filtering and impurity removal device, comprising an impurity removal box (1), characterized in that: The inner wall of the impurity removal box (1) is installed with an impurity removal mechanism, the impurity removal mechanism comprises a filter screen plate (2) and a filter screen bag (21), the filter screen plate (2) is in the shape of a door plate, the cross section of the filter screen bag (21) is in the shape of an arc, the inner wall of the impurity removal box (1) is slidably connected with a mounting frame (22), the inner wall of the mounting frame (22) is fixedly connected and aligned with the outer surface of the filter screen plate (2), and the outer surface edge of the mounting frame (22) is adapted to the inner wall of the impurity removal box (1); A driving mechanism is installed between two adjacent filter screen plates (2), the driving mechanism comprising a buoyancy column, the buoyancy column comprising an upper buoyancy column (3) and a lower buoyancy column (31), the buoyancy column being made of a compressed air bag, the outer surface of the lower buoyancy column (31) being fixedly sleeved with a compression spring (32), the lower surface of the lower buoyancy column (31) being provided with a material storage trough (33), a plurality of the material storage troughs (33) being distributed in a linear array, the end of the buoyancy column being fixedly connected with a wear-resistant disk (34), the surface of the wear-resistant disk (34) being slidably connected to the surface of the filter screen plate (2), one end of the compression spring (32) being fixedly connected to the side wall surface of the wear-resistant disk (34), wherein the surface of the lower wear-resistant disk (34) being fixedly connected with a connecting rod (35).

2. A petrochemical product filtering and impurity removal device according to claim 1, characterized in that: The two installation frames (22) are both located in the middle of the impurity removal box (1), and the two filter net bags (21) are respectively located outside the two installation frames (22). A scraper (23) is fixedly connected to the surface of the filter net bag (21), and the scraper (23) and the filter net bag (21) are combined into a concave shape. The upper edge of the scraper (23) is slidably connected to the surface of the filter screen plate (2).

3. A petrochemical product filtering and impurity removal device according to claim 2, characterized in that: The surface of the installation frame (22) is slidably connected to a hinge seat (24); the surfaces of the two hinge seats (24) on the same side are rotatably connected to the upper end surface of the filter net bag (21) via a rotating shaft; a slide groove is provided on the surface of the installation frame (22); the cross section of the slide groove is T-shaped; the surface of the hinge seat (24) is fixedly connected to a clamping rod (25); the inner wall of the slide groove is slidably connected to the surface of the clamping rod (25).

4. A petrochemical product filtering and impurity removal device according to claim 3, characterized in that: The inner wall of the slide groove is fixedly connected to a thrust spring (26), the end surface of the thrust spring (26) is fixedly connected to an extrusion rod (27), and the extrusion rod (27) is located inside the slide groove. The upper and lower ends of the inner wall of the debris removal box (1) are fixedly connected to insertion rods (28), and the ends of the plurality of insertion rods (28) are respectively aligned with the upper and lower ends of the slide groove. The end of the clamping rod (25) is fixedly connected to the surface of the connecting rod (35).

5. A petrochemical product filtering and impurity removal device according to claim 4, characterized in that: An equipment rack (36) is fixedly connected to the upper surface of the impurity removal box (1), the equipment rack (36) is in a U shape, an air pump (37) is fixedly connected to the upper surface of the equipment rack (36), and an air delivery hose (38) is installed on the surface of the air pump (37).

6. A petrochemical product filtering and impurity removal device according to claim 5, characterized in that: The lower end of the gas delivery hose (38) is fixedly connected to a buoyancy frame (39), the buoyancy frame (39) is in the shape of a hollow rectangular frame, the buoyancy frame (39) is located between two mounting frames (22), the inner side wall of the buoyancy frame (39) is fixedly connected to a mounting seat (310), and the other end of the compression spring (32) is fixedly connected to the side wall surface of the mounting seat (310).

7. A petrochemical product filtering and impurity removal device according to claim 6, characterized in that: The interior of the mounting seat (310) is connected to the interior of the gas delivery hose (38) via a buoyancy frame (39); both side surfaces of the mounting seat (310) are fixedly connected to and connected to the buoyancy column; a limiting groove is provided on the inner side wall of the equipment rack (36); the inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame (39).

8. A petrochemical product filtering and impurity removal device according to claim 7, characterized in that: The inner side wall of the upper end of the buoyancy frame (39) is rotatably connected to a push rod (311) via a rotating shaft, the lower end of the push rod (311) is hingedly connected to a movable rod (312), the lower end surface of the movable rod (312) is slidably connected to the inner wall of the limiting groove, the lower end surface of the push rod (311) is hingedly connected to a push ring (313), and the push ring (313) is slidably sleeved on the surface of the gas delivery hose (38).

9. A petrochemical product filtering and impurity removal device according to claim 8, characterized in that: A feed pipe (4) is fixedly plugged into one side surface of the impurity removal box (1), and the two feed pipes (4) are respectively located on both sides of the buoyancy frame (39); a discharge pipe (5) is fixedly plugged into the other side surface of the impurity removal box (1), and the discharge pipe (5) is located between the two filter screen plates (2).

10. A method for filtering and removing impurities from petrochemical products according to any one of claims 1 to 9, wherein the method comprises: Step 1: When in use, the air pump (37) sucks the gas in the buoyancy frame (39) and the buoyancy column through the air delivery hose (38), the lower buoyancy column (31) is folded and contracted toward the surface of the mounting seat (310) under the drive of the compression spring (32), the wear-resistant disc (34) drives the hinge seat (24) to approach the surface of the buoyancy frame (39) through the connecting rod (35), the hinge seat (24) drives the filter screen plate (2) to fit the surface of the buoyancy frame (39) through the filter net bag (21), and the chemical raw materials are injected into the impurity removal box (1) through the two feed pipes (4); Step 2: After the chemical raw material is injected, the air pump (37) is started. The air pump (37) injects gas into the buoyancy frame (39) and the buoyancy column through the air delivery hose (38). The buoyancy column expands after being inflated, and the compression spring (32) is stretched. The upper buoyancy column (3) and the lower buoyancy column (31) push the two filter screens (2) to move toward the two sides of the impurity removal box (1). The filter screens (2) perform preliminary filtering on the impurities in the impurity removal box (1). As the filter screens (2) and the mounting frame (22) move, the edge of the filter net bag (21) contacts the inner wall of the impurity removal box (1). Step 3, at the same time, the insertion rod (28) is inserted into the slide groove on the surface of the installation frame (22), the squeezing rod (27) is pushed open, the surface of the clamping rod (25) loses the squeezing of the squeezing rod (27), and the buoyancy of the buoyancy column in the chemical raw material drives the hinge seat (24) and the filter net bag (21) to float up. When the filter net bag (21) floats up, the chemical raw material is filtered twice, and impurities adhering to the surface of the filter screen plate (2) are scraped off by the scraper (23). The scraped impurities are captured by the filter net bag (21). After floating on the surface of the chemical raw material on the filter net bag (21), the impurities are dumped outward by deflecting the filter net bag (21); Step 4: While the buoyancy column drives the filter net bag (21) to float upward, the buoyancy frame (39) floats upward together with the inner side of the equipment frame (36), and the upper surface of the buoyancy frame (39) squeezes the movable rod (312). The movable rod (312) pushes the push rod (311), and the push ring (313) on the surface of the push rod (311) bends the gas supply hose (38), thereby constricting the gas supply hose (38).

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