An oil chemical product filtering and impurity removing device and method

Abstract

The present invention belongs to the technical field of petroleum processing equipment, and in particular, to a device and method for filtering and removing impurities from petrochemical products, comprising an impurity removal box, the inner wall of which is installed with an impurity removal mechanism, the impurity removal mechanism comprising a filter screen plate and a filter net bag, the filter screen plate being in the shape of a door plate, the cross section of the filter net bag being in the shape of an arc, the inner wall of the impurity removal box being slidably connected with an installation frame, the inner wall of the installation frame and the outer surface of the filter screen plate being fixedly connected and aligned. The device and method for filtering and removing impurities from petrochemical products, by installing an impurity removal mechanism in the impurity removal box, uses the filter screen plate and the filter net bag in the impurity removal mechanism to cooperate, and filters chemical raw materials by horizontal movement and vertical lifting respectively, and the process is relatively slow, avoiding the high-speed operation of the equipment causing the chemical raw materials to heat up and deteriorate, and at the same time, reducing the generation of bubbles, avoiding the dissolution of a large number of bubbles, and affecting the 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:

[0003] 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

[0004] 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.

[0005] 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;

[0006] A driving mechanism is installed between two adjacent filter screen plates. The driving mechanism includes buoyancy columns, which include upper buoyancy columns and lower buoyancy columns. The buoyancy columns are made of compressed air bags. A compression spring is fixedly sleeved on the outer surface of the lower buoyancy column. A material storage groove is formed on the lower surface of the lower buoyancy column. Multiple material storage grooves are distributed in a linear array. The end of the buoyancy column is fixedly connected with a wear-resistant disc. The surface of the wear-resistant disc is in sliding contact with the surface of the filter screen plate. One end of the compression spring is fixedly connected to the side wall surface of the wear-resistant disc. A connecting rod is fixedly connected to the surface of the lower wear-resistant disc, and raw materials are stored by using the material storage groove, so as to facilitate reducing the excessive rise of the liquid level of chemical raw materials in the impurity removal tank caused by the expansion of the buoyancy column.

[0007] Preferably, both installation frames are located in the middle of the impurity removal tank. Two filter bags are respectively located outside the two installation frames. A scraper is fixedly connected to the surface of the filter bag. The scraper and the filter bag are combined into a concave shape. The upper edge of the scraper is in sliding connection with the surface of the filter screen plate.

[0008] Through the above technical solution, the filter bag is prepared by using hard metal wires, and the filter bag and the scraper are combined to collect impurities, so as to facilitate the collection of impurities.

[0009] Preferably, a hinge seat is slidably connected to the surface of the installation frame. The surfaces of two hinge seats on the same side are rotatably connected to the upper surface of the filter bag through a rotating shaft. A chute is formed on the surface of the installation frame. The cross section of the chute is in a T shape. A clamping rod is fixedly connected to the surface of the hinge seat. The inner wall of the chute is in sliding connection with the surface of the clamping rod.

[0010] Through the above technical solution, the filter bag is movably installed on the surface of the hinge seat, so as to facilitate deflecting the filter bag, and then realizing the dumping of impurities.

[0011] Preferably, a thrust spring is fixedly connected to the inner side wall of the chute. The end surface of the thrust spring is fixedly connected with a pressing rod. The pressing rod is located inside the chute. The upper end and the lower end of the inner side wall of the impurity removal tank are fixedly connected with inserting rods. The ends of multiple inserting rods are respectively aligned with the upper end and the lower end of the chute. The end of the clamping rod is fixedly connected to the surface of the connecting rod.

[0012] Through the above technical solution, multiple thrust elastic springs are used to push the pressing rod, so that the pressing rod cooperates with the inner wall of the chute to tightly fix the clamping rod, so as to facilitate hindering the floating of the hinge seat. A rubber strip can also be installed on the surface of the pressing rod to further increase the friction on the surface of the clamping rod, and then fix the clamping rod.

[0013] Preferably, a device rack is fixedly connected to the upper surface of the impurity removal box. The device rack is U-shaped, and an air pump is fixedly connected to the upper surface of the device rack. An air delivery hose is installed on the surface of the air pump.

[0014] Through the above technical solution, using the air pump as the only power source facilitates reducing equipment wear and tear during use and subsequent maintenance costs. To facilitate controlling the air delivery hose, an electromagnetic valve can also be installed on the surface of the air delivery hose. At the same time, the air pump is specifically a two-way air pump, and inflation and suction can be achieved through a single air delivery hose. When selecting air pumps of other specifications, additional air delivery hoses need to be added according to actual situations.

[0015] 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. A mounting seat is fixedly connected to the inner side wall of the buoyancy frame, and the other end of the compression spring is fixedly connected to the side wall surface of the mounting seat.

[0016] Through the above technical solution, the buoyancy columns are installed using the buoyancy frame and the mounting seat, which facilitates the combination of multiple buoyancy columns to increase buoyancy. Additional air bags can also be added inside the buoyancy frame to further enhance the buoyancy of the mechanism.

[0017] Preferably, the interior of the mounting seat is in communication with the interior of the air delivery hose through the buoyancy frame. Both side surfaces of the mounting seat are fixedly connected to and in communication with the buoyancy columns. A limiting groove is provided on the inner side wall of the device rack, and the inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame.

[0018] Through the above technical solution, the buoyancy frame is limited by the limiting groove, which facilitates preventing the buoyancy frame from tilting after the filter mesh plate falls off the surface of the buoyancy frame.

[0019] Preferably, a push rod is rotatably connected to the upper inner side wall of the buoyancy frame through a rotating shaft. The lower end of the push rod is hinged to a movable rod, the lower end surface of the movable rod is slidably connected to the inner wall of the limiting groove, and the lower end surface of the push rod is hinged to a push ring. The push ring is slidably sleeved on the surface of the air delivery hose.

[0020] Through the above technical solution, the air delivery hose is bent by pushing the push ring, which facilitates the bundling of the air delivery hose.

[0021] Preferably, a feed pipe is fixedly inserted into one side surface of the impurity removal box. The two feed pipes are respectively located on both sides of the buoyancy frame. A discharge pipe is fixedly inserted into the other side surface of the impurity removal box. The discharge pipe is located between the two filter mesh plates.

[0022] Through the above technical solution, raw materials are injected into both sides of the filter mesh plate using the feed pipe, which facilitates filtration by the movement of the filter mesh plate.

[0023] A method for a filtering and impurity-removing device of petrochemical products, the method being as follows:

[0024] Step 1: During use, an air pump sucks the gas inside the buoyancy frame and the buoyancy columns through an air delivery hose. The lower buoyancy column folds and contracts towards the surface of the mounting seat driven by a compression spring. The wear-resistant disc drives the hinge seat towards the surface of the buoyancy frame through a connecting rod. The hinge seat drives the filter mesh plate to fit against the surface of the buoyancy frame through a filter mesh bag, and chemical raw materials are injected into the impurity-removing box through two feed pipes.

[0025] Step 2: After the injection of the chemical raw materials is completed, start the air pump. The air pump injects gas into the buoyancy frame and the buoyancy columns through the air delivery hose. After the buoyancy columns are inflated, they expand, the compression spring is stretched, and the upper and lower buoyancy columns push the two filter mesh plates to move towards both sides of the impurity-removing box. The filter mesh plates initially filter the impurities in the impurity-removing box, and as the filter mesh plates and the mounting frame move, the edge of the filter mesh bag contacts the inner wall of the impurity-removing box.

[0026] Step 3: At the same time, the insertion rod is inserted into the chute on the surface of the mounting frame, the extrusion rod is pushed open, and the surface of the clamping rod loses the extrusion of the extrusion rod. The buoyancy column drives the hinge seat and the filter mesh bag to float upward under the buoyancy of the chemical raw materials. When the filter mesh bag floats upward, it performs a secondary filtration on the chemical raw materials, and the impurities adhered to the surface of the filter mesh plate are scraped off by a scraper. The scraped impurities are captured by the filter mesh bag. After the filter mesh bag floats out of the surface of the chemical raw materials, the impurities are poured outwards by deflecting the filter mesh bag.

[0027] Step 4: While the buoyancy column drives the filter mesh bag to float upward, the buoyancy frame also floats upward inside the equipment frame. The upper surface of the buoyancy frame squeezes the movable rod, the movable rod pushes the push rod, and the air delivery hose is bent through the push ring on the surface of the push rod to constrict the air delivery hose.

[0028] The beneficial effects in the present invention are as follows:

[0029] 1. By arranging an impurity-removing mechanism inside the impurity-removing box, the filter mesh plate and the filter mesh bag in the impurity-removing mechanism are used in cooperation, and the chemical raw materials are filtered respectively through horizontal movement and vertical lifting, and the process is relatively slow, avoiding the chemical raw materials from heating and deteriorating due to the high-speed operation of the equipment. At the same time, the generation of bubbles is reduced, avoiding a large amount of bubbles from dissolving and affecting the later processing of the chemical raw materials.

[0030] 2. By setting the air pump in the driving mechanism as the only power source, and using the air pump to inflate the buoyancy column, while the buoyancy column pushes the filter mesh plate in the filtering mechanism to move horizontally, the buoyancy of the buoyancy column in the liquid chemical raw materials is used to drive the filter mesh bag to float upward, thereby realizing the driving of the floating filtering mechanism in two different directions and assisting the filtering mechanism to complete the filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a petrochemical product filtering and impurity removal device proposed by the present invention;

[0032] 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;

[0033] 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;

[0034] 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;

[0035] 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;

[0036] 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;

[0037] 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;

[0038] 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;

[0039] Figure 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.

[0040] 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

[0041] 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.

[0042] ReferenceFigures 1-8 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;

[0043] 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 in sliding contact with 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, and a connecting rod 35 is fixedly connected to the surface of the lower wear-resistant disk 34. The storage trough 33 is used to store raw materials, thereby reducing the excessive increase in the liquid level of the chemical raw materials in the impurity removal box 1 caused by the expansion of the buoyancy column.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] A method for filtering and removing impurities from petrochemical products, the method comprising:

[0052] 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;

[0053] 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;

[0054] 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;

[0055] 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 supply hose 38 to converge the gas supply hose 38. Example

[0056] Reference Figures 1-4 and Figures 6-9 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;

[0057] 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 in sliding contact with 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, and a connecting rod 35 is fixedly connected to the surface of the lower wear-resistant disk 34. The storage trough 33 is used to store raw materials, thereby reducing the excessive increase in the liquid level of the chemical raw materials in the impurity removal box 1 caused by the expansion of the buoyancy column.

[0058] To assist the filter mesh plate 2 in filtering, both mounting frames 22 are located in the middle of the impurity removal box 1, and two filter scoops 29 are respectively located outside the two mounting frames 22. A scraper 23 is fixedly connected to the surface of the filter scoop 29. The scraper 23 and the filter scoop 29 are combined into a triangular prism shape. The upper edge of the scraper 23 is slidably connected to the surface of the filter mesh plate 2. The filter scoop 29 is prepared with hard metal wire, and the filter scoop 29 and the scraper 23 are combined to collect impurities, so as to facilitate the collection of impurities. The filter scoop is attached to the inner bottom wall of the impurity removal box 1, so as to facilitate the collection of sediment. A hinge seat 24 is slidably connected to the surface of the mounting frame 22. The surfaces of two hinge seats 24 on the same side are rotatably connected to the upper surface of the filter scoop 29 through a rotating shaft. A chute is provided on the surface of the mounting frame 22, and the cross section of the chute is in a T shape. A clamping rod 25 is fixedly connected to the surface of the hinge seat 24, and the inner wall of the chute is slidably connected to the surface of the clamping rod 25. The filter scoop 29 is movably installed on the surface of the hinge seat 24, so as to facilitate the deflection of the filter scoop 29, and thus realize the dumping of impurities.

[0059] To control the floating of the filter scoop 29, a thrust spring 26 is fixedly connected to the inner side wall of the chute. The end surface of the thrust spring 26 is fixedly connected to a pressing rod 27. The pressing rod 27 is located inside the chute. The upper and lower ends of the inner side wall of the impurity removal box 1 are fixedly connected with inserting rods 28. The ends of multiple inserting rods 28 are respectively aligned with the upper and lower ends of the chute. The end of the clamping rod 25 is fixedly connected to the surface of a connecting rod 35. Multiple thrust elastic springs are used to push the pressing rod 27, so that the pressing rod 27 cooperates with the inner wall of the chute to tightly press and fix the clamping rod 25, so as to facilitate hindering the floating of the hinge seat 24.

[0060] By arranging an impurity removal mechanism in the impurity removal box 1, the filter mesh plate 2 and the filter scoop 29 in the impurity removal mechanism are used in cooperation, and the chemical raw materials are filtered by horizontal movement and vertical lifting respectively. The process is relatively slow, avoiding the chemical raw materials from heating and deteriorating due to the high-speed operation of the equipment. At the same time, the generation of bubbles is reduced, and a large amount of bubbles are prevented from dissolving and affecting the later processing of the chemical raw materials.

[0061] To drive the filtering mechanism, a device rack 36 is fixedly connected to the upper surface of the impurity removal box 1. The device rack 36 is U-shaped, and an air pump 37 is fixedly connected to the upper surface of the device rack 36. An air delivery hose 38 is installed on the surface of the air pump 37. Using the air pump 37 as the only power source is convenient for reducing equipment loss during use and the later maintenance cost. To facilitate the control of the air delivery hose 38, a solenoid valve can also be installed on the surface of the air delivery 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 a single air delivery hose 38. When selecting air pumps 37 of other specifications, it is necessary to add air delivery hoses 38 according to the actual situation.

[0062] By setting the air pump 37 in the driving mechanism as the only power source, using the air pump 37 to inflate the buoyancy column, while the buoyancy column pushes the filter mesh plate 2 in the filtering mechanism to move horizontally, and using the buoyancy of the buoyancy column in the liquid chemical raw material to drive the filtering scoop net 29 to float upward, thereby realizing driving the floating filtering mechanism in two different directions and assisting the filtering mechanism to complete filtration.

[0063] 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 two mounting frames 22. A mounting seat 310 is fixedly connected to the inner side wall of the buoyancy frame 39. The other end of the compression spring 32 is fixedly connected to the side wall surface of the mounting seat 310. Installing the buoyancy column using the buoyancy frame 39 and the mounting seat 310 is convenient for combining multiple buoyancy columns to increase buoyancy. Additional air bags can also be added inside the buoyancy frame 39 to further enhance the buoyancy of the mechanism. The inside of the mounting seat 310 is communicated with the inside of the air delivery hose 38 through the buoyancy frame 39. Both side surfaces of the mounting seat 310 are fixedly connected to and communicated with the buoyancy column. A limiting groove is opened on the inner side wall of the device rack 36, and the inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame 39. Limiting the buoyancy frame 39 using the limiting groove is convenient for preventing the buoyancy frame 39 from tilting after the filter mesh plate 2 falls off the surface of the buoyancy frame 39.

[0064] The inner side wall of the upper end of the buoyancy box 39 is rotatably connected by a rotating shaft to a push rod 311. The lower end of the push rod 311 is hinged 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 hinged to a push ring 313. The push ring 313 is slidably sleeved on the surface of the gas transmission hose 38. The push ring 313 is used to push the gas transmission hose 38 to be bent, so as to facilitate the bundling of the gas transmission hose 38. One side surface of the impurity removal box 1 is fixedly inserted with a feed pipe 4. The two feed pipes 4 are respectively located on both sides of the buoyancy box 39. The other side surface of the impurity removal box 1 is fixedly inserted with a discharge pipe 5. The discharge pipe 5 is located between the two filter net plates 2. The raw materials are injected through the feed pipe 4 on both sides of the filter net plate 2, so as to facilitate filtration through the movement of the filter net plate 2.

[0065] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and 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, characterized in that: The inner wall of the impurity removal box is installed with an impurity removal mechanism, which includes a filter screen plate and a filter screen bag, the filter screen plate is in the shape of a door plate, the cross section of the filter screen bag is arc-shaped, 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 material storage groove is opened on the lower surface of the lower buoyancy column, and a plurality of the material storage grooves 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 in sliding contact with 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, and a connecting rod is fixedly connected to the surface of the lower wear-resistant disk; The two installation frames are both located in the middle of the debris removal box, the two filter net bags are respectively located on the outsides of the two installation frames, the surface of the filter net bag is fixedly connected with a scraper, the scraper and the filter net bag are combined in a concave shape, and the upper edge of the scraper is slidably connected to the surface of the filter screen plate; The surface of the installation frame is slidably connected with an articulated seat, and the surfaces of the two articulated seats on the same side are rotatably connected with the upper end surface of the filter net bag through a rotating shaft. A sliding groove is provided on the surface of the installation frame, and the cross-section of the sliding groove is T-shaped. The surface of the articulated seat is fixedly connected with a clamping rod, and the inner wall of the sliding groove is slidably connected with the surface of the clamping rod; The inner wall of the slide groove is fixedly connected with a thrust spring, and the end surface of the thrust spring is fixedly connected with an extrusion rod, and 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, and the ends of multiple 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.

2. A petrochemical product filtering and impurity removal device according to claim 1, characterized in that: An equipment rack is fixedly connected to the upper surface of the impurity removal box, and the equipment rack is in a U shape. 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.

3. A petrochemical product filtering and impurity removal device according to claim 2, characterized in that: The lower end of the air delivery hose is fixedly connected to a buoyancy frame, which is in the shape of a hollow rectangular frame and 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.

4. A petrochemical product filtering and impurity removal device according to claim 3, characterized in that: 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. A limiting groove is provided on the inner side wall of the equipment rack. The inner wall of the limiting groove is slidably connected to the outer surface of the buoyancy frame.

5. A petrochemical product filtering and impurity removal device according to claim 4, characterized in that: The inner side wall of the upper end of the buoyancy frame is rotatably connected to a push rod via a rotating shaft, the lower end of the push rod is hinged with a movable rod, the lower end surface of the movable rod is slidably connected to the inner wall of the limiting groove, the lower end surface of the push rod is hinged with a push ring, and the push ring is slidably sleeved on the surface of the gas hose.

6. A petrochemical product filtering and impurity removal device according to claim 5, characterized in that: 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.

7. A method for filtering and removing impurities from petrochemical products according to any one of claims 1 to 6, wherein the method comprises: 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 floats up together 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.

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