Dust removal filter and washing fractionating tower

Abstract

The utility model belongs to the technical field of gas washing and fractionating equipment, and discloses a dust removal filter and a washing and fractionating device.The dust removal filter comprises a plurality of modular washing parts and a plurality of modular filtering parts, and the modular washing parts and the modular filtering parts are alternately arranged from top to bottom and detachably connected; the upper side of each modular filtering part is connected with one modular flushing part; the modular flushing part is used for being connected with an external liquid supply system so as to flush the modular filtering part on the lower side; the modularized filtering part comprises a plurality of grid carrier plates and filtering fillers filled on the grid carrier plates, and the modularized filtering part is used for filtering flowing airflow; the washing fractionating tower comprises the dust removal filter; therefore, the filler in the dust removal filter can be fully utilized, and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of gas washing and fractionation equipment, and in particular to a dust removal filter and a washing and fractionation tower. Background Art

[0002] Some existing washing and fractionation systems for washing and fractionating plastic pyrolysis oil and gas are as follows: Figure 4 As shown, the system comprises a washing and fractionating tower 1', a recycled component output system 2', a circulating washing system 3', a reflux temperature control system 4', a mid-section extraction system 5', and a top extraction system 6'. A dust removal filter 101' is located at the bottom of the washing and fractionating tower 1', while a plate tray 102' is located at the top. During operation, the system draws plastic pyrolysis oil and gas from the bottom of the washing and fractionating tower 1'. The oil and gas are first removed from the dust by the dust removal filter 101' and the circulating washing system 3'. The oil and gas are then separated at the plate tray 102', where they are then extracted from the mid-section extraction system 5' and the top extraction system 6'.

[0003] The dust removal filter 101 ' in the existing washing fractionation tower 1 ' is usually an integral structure filled with fillers. The fillers absorb dust and are prone to clogging. When the clogging reaches a certain level, the entire structure needs to be replaced.

[0004] However, in reality, the degree of blockage at different upper and lower positions of the dust filter 101' is not uniform, and the blockage degree of the lower part is generally higher than that of the upper part. When replacing it, the upper filler has not been fully used, resulting in waste; in addition, the circulating washing system 3' will regularly use flushing liquid to flush and clean the dust filter 101', but generally only flushes from the top of the dust filter 101', and only the upper part can be subjected to a larger flushing force. The cleaning effect of the lower filler is not ideal, thereby shortening its service life. Utility Model Content

[0005] The purpose of the present application is to provide a dust removal filter and a washing fractionation tower, which can make fuller use of the filler in the dust removal filter and increase its service life.

[0006] In the first aspect, the present application provides a dust removal filter, comprising a plurality of modular flushing sections and a plurality of modular filter sections, wherein the plurality of modular flushing sections and the plurality of modular filter sections are arranged alternately from top to bottom and are connected in a detachable manner, and a modular flushing section is connected to the upper side of each modular filter section; the modular flushing section is used to connect to an external liquid supply system to flush the modular filter section on the lower side; the modular filter section comprises a plurality of grid carrier plates and filter fillers filled on the grid carrier plates, and the modular filter section is used to filter the airflow passing through.

[0007] Preferably, the modular flushing portion includes a first cylinder, the modular filtering portion includes a second cylinder, and the modular flushing portion and the modular filtering portion are connected via the first cylinder and the second cylinder.

[0008] Optionally, the first cylinder and the second cylinder are connected by threads.

[0009] Optionally, the first cylinder and the second cylinder are both provided with a plurality of connecting through holes extending in the up and down directions, and the connecting through holes on the first cylinder and the connecting through holes on the second cylinder are arranged in a one-to-one correspondence; all the modular flushing parts and all the modular filtering parts are connected by a plurality of bolts passing through the connecting through holes.

[0010] Preferably, a plurality of carrier plate layers are provided in the second cylinder, each carrier plate layer comprises a plurality of grid carrier plates arranged parallel to each other at the same height position, and the grid carrier plates in any adjacent carrier plate layers are staggered in the horizontal direction.

[0011] Preferably, the grid carrier plate is a V-shaped grid plate with the tip facing downward.

[0012] Preferably, a flushing pipe is provided in the first cylinder, the flushing pipe is provided with a plurality of downwardly disposed nozzles, and the flushing pipe is further provided with a connection inlet passing through the first cylinder, the connection inlet is used to be connected to an external liquid supply system.

[0013] Preferably, the flushing pipe is a spiral coil.

[0014] Preferably, at least one supporting member is connected between the flushing pipe and the first cylinder.

[0015] In a second aspect, the present application provides a washing distillation tower, comprising a tower body, and a filter and a plate tray arranged in the tower body, wherein the plate tray is arranged above the filter; the filter is the dust removal filter described above.

[0016] Beneficial effects: The dust removal filter and washing distillation tower provided in the present application are provided with a modularly designed flushing part and a filtering part, and the modularly designed flushing part and the filtering part are connected in a detachable manner, allowing local module replacement and targeted flushing, so that the filler in the dust removal filter can be more fully utilized, reducing resource waste and extending the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the dust removal filter provided in an embodiment of the present application.

[0018] Figure 2 A top view of the modular flushing section.

[0019] Figure 3 This is a schematic diagram of the structure of the washing distillation tower provided in the embodiment of the present application.

[0020] Figure 4 Schematic diagram of the structure of the existing washing and fractionation system.

[0021] Explanation of reference numerals: 1. Modular flushing section; 101. First cylinder; 102. Flushing pipe; 103. Connection inlet; 104. Support member; 2. Modular filtration section; 201. Grid carrier; 202. Filter filler; 203. Second cylinder; 3. Connection through hole; 4. Bolt; 90. Tower body; 91. Filter; 92. Plate tray. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0024] For this purpose, refer to Figure 1-Figure 2 The present application provides a dust removal filter, comprising a plurality of modular flushing parts 1 and a plurality of modular filtering parts 2, wherein the plurality of modular flushing parts 1 and the plurality of modular filtering parts 2 are alternately arranged from top to bottom and connected in a detachable manner, wherein the upper side of each modular filtering part 2 is connected to a modular flushing part 1; the modular flushing part 1 is used to connect to an external liquid supply system (such as Figure 4 The circulating washing system 3') is connected to the modular filter unit 2 on the lower side to rinse; the modular filter unit 2 includes a plurality of grid carriers 201 and filter fillers 202 filled on the grid carriers 201, and the modular filter unit 2 is used to filter the air flow passing therethrough.

[0025] Specifically, the airflow enters the dust removal filter and passes through the alternately arranged modular filter parts 2 in turn. Each modular filter part 2 has a grid carrier plate 201 and a filter filler 202 to filter impurities. When flushing is required, the external liquid supply system delivers flushing liquid to the modular flushing part 1, and the flushing liquid is sprayed out to clean the modular filter part 2 on the lower side. The modular design allows the blocked parts to be disassembled and replaced separately to avoid overall waste. The detachable connection simplifies the maintenance process.

[0026] Compared with the existing technology, the lower part of the integral dust removal filter is severely clogged and needs to be replaced as a whole, resulting in material waste. Flushing only from the top of the lower part is not thorough. The modular design of this solution allows partial replacement of clogged modules to reduce waste. Each filter part has a dedicated flushing part to ensure direct flushing force and improve the cleaning effect. The detachable connection facilitates maintenance.

[0027] Through the above technical solution, the present application reduces material waste because only the clogged filter module can be replaced; improves the flushing effect so that each modular filter part 2 is fully cleaned; improves the filtration efficiency and extends the service life by optimizing the airflow distribution.

[0028] In some embodiments, see Figure 1 The modular flushing part 1 includes a first cylinder 101 , and the modular filtering part 2 includes a second cylinder 203 . The modular flushing part 1 and the modular filtering part 2 are connected via the first cylinder 101 and the second cylinder 203 .

[0029] Among them, the first cylinder 101 refers to the cylindrical shell structure in the modular flushing part 1, which can be made of metal material to provide an installation position and external connection interface for the flushing functional components (such as the flushing pipe 102) to facilitate docking with the liquid supply system.

[0030] The second cylinder 203 refers to the cylindrical frame structure in the modular filter part 2 , which can be made of metal material to provide a storage space for the filter filler 202 , facilitating the filling and replacement of the filter filler 202 .

[0031] The detachable connection between the first cylinder 101 and the second cylinder 203 enables the separation and reassembly of the modules, facilitating local maintenance.

[0032] Specifically, the technical solution separates the modular flushing section 1 and modular filtration section 2 into independent units through a cylindrical structure, and the connection design allows for disassembly. If the dust filter becomes clogged, for example, the lower modular filtration section 2 is severely clogged, the first cylindrical body 101 and the second cylindrical body 203 can be separated to clean or replace only the clogged modular filtration section 2 without affecting the flushing section. This solves the problem of difficult disassembly and reduces material waste.

[0033] Compared to existing technologies, which utilize a monolithic structure and cannot disassemble locally clogged parts, requiring replacement of the entire unit, this solution introduces modular connections within the cartridge body, allowing for independent treatment of clogged locations and reducing maintenance costs. Through this technical solution, the present application enables rapid disassembly and maintenance of the dust filter, requiring only the clogged module, such as the modular filter unit 2, to be handled. The modular flushing unit 1 can be reused, saving replacement time and resources.

[0034] In some embodiments, the first barrel 101 and the second barrel 203 are connected by threads. For example, the upper and lower ends of the first barrel 101 are both provided with external threads (or internal threads), and the upper and lower ends of the second barrel 203 are both provided with corresponding internal threads (or external threads), and the first barrel 101 and the second barrel 203 are connected by the internal and external threads.

[0035] During operation, assembly and disassembly are performed by rotating the filter without the need for additional tools, making it easy to maintain or replace a severely clogged local module, reducing the waste caused by replacing the entire module. Through the above technical solution, this application solves the problem of inconvenient disassembly of modular dust removal filters, realizes the rapid disassembly and replacement of local modules, reduces maintenance costs and time, and avoids the waste of filter materials.

[0036] In other embodiments, see Figure 1 The first cylinder 101 and the second cylinder 203 are both provided with a plurality of connecting through holes 3 extending in the up and down directions, and the connecting through holes 3 on the first cylinder 101 and the connecting through holes 3 on the second cylinder 203 are arranged in a one-to-one correspondence; all modular flushing parts 1 and all modular filtering parts 2 are connected by a plurality of bolts 4 passing through the connecting through holes 3.

[0037] Among them, the connecting through hole 3 refers to a hole set on the first cylinder 101 and the second cylinder 203, extending in the up and down directions and passing through both ends. It can be specifically achieved by drilling to provide a channel for the bolt 4 to pass through, so as to facilitate rapid separation of components during maintenance.

[0038] Among them, the one-to-one corresponding setting means that the connecting through holes 3 on the first cylinder 101 and the connecting through holes 3 on the second cylinder 203 are aligned in position and quantity, ensuring that the bolts 4 pass through all modular components smoothly and solving the alignment problem during the disassembly process.

[0039] Among them, bolt connection refers to the use of bolts 4 to pass through the connecting through holes 3 for tightening, which can be specifically achieved by using bolt and nut assemblies to achieve a detachable connection method, making it easy to independently disassemble specific modules for local maintenance.

[0040] Specifically, this solution achieves the detachability of modular components through a bolt connection mechanism, and sets up multiple connecting through holes extending in the up and down directions, providing physical connection points that run through all modules, ensuring that the components can be quickly separated during disassembly; the connecting through holes 3 are set one by one to ensure precise alignment between the cylinders, facilitating the smooth passage of the bolts 4; all modular flushing parts 1 and modular filtering parts 2 are connected together by bolts 4 to achieve a firm but detachable fastening method. During maintenance, specific modules are independently disassembled without affecting other parts, thereby optimizing cleaning efficiency and reducing resource waste. Through the above technical solution, this application achieves convenient disassembly and local maintenance of modular components, reduces the problem of filler waste, optimizes cleaning operation efficiency, and extends the service life of dust removal filters.

[0041] In some preferred embodiments, see Figure 1 A plurality of carrier plates are provided in the second cylinder 203, each carrier plate layer includes a plurality of grid carrier plates 201 arranged parallel to each other at the same height position, and the grid carrier plates 201 in any adjacent carrier plate layers are staggered with each other in the horizontal direction.

[0042] The carrier layer refers to a plurality of vertical layers arranged in the second cylinder 203, which can be implemented by a fixed frame. Through layered management, maintenance at different heights can be facilitated, thereby alleviating the problem of uneven blockage.

[0043] The grid carrier plate 201 refers to a plate-shaped support body with a grid structure, which can be specifically realized by a metal mesh plate, and is used to carry the filter filler 202 to ensure uniform distribution of airflow when passing through.

[0044] The mutually parallel arrangement means that the grid carriers 201 are arranged in parallel at the same height, which can be achieved by fixing with a bracket, thereby enhancing the stability and filtration efficiency of the filter filler 202 .

[0045] Among them, the horizontal staggered arrangement means that the positions of the grid carriers 201 of adjacent carrier layers are staggered, and the vertical downward projection of the upper grid carrier 201 covers the gap between the grid carrier 201 of the lower layer, thereby increasing the tortuosity of the airflow when passing through, avoiding the straight-through effect, and promoting the uniform diffusion of the flushing liquid.

[0046] This solution optimizes the airflow and flushing distribution path by staggering the carrier plate layers, allowing the flushing liquid to more easily penetrate the lower area and improve the uniformity of clogging. Through the above technical solution, this application alleviates the problem of more serious clogging in the lower part of the dust removal filter, reduces waste when replacing the filter packing 202, and extends the overall service life.

[0047] Preferably, the grid carrier 201 may be a V-shaped grid plate with the tip facing downwards, such as Figure 1 shown.

[0048] Among them, the V-shaped mesh plate with the tip facing downward refers to a mesh plate structure with a V-shaped cross section, which can be achieved by bending the mesh material to form a V-shaped angle. The apex of the V-shape faces downward, which is used to guide the liquid to flow along the slope toward the tip.

[0049] Specifically, during the flushing process, the inclined design of the V-shaped mesh plate guides the flushing liquid to naturally converge to the tip and drip downward, optimizing the flow path of the liquid in the filter packing 202, enhancing the penetration and flushing effect on the lower packing, and avoiding liquid retention in the upper area, thereby improving the cleaning effect and reducing blockage accumulation.

[0050] Compared to existing technologies, the grid carriers of existing dust filters typically utilize a flat plate structure, which can lead to uneven distribution of flushing liquid in the upper area, resulting in insufficient cleaning of the lower packing. This solution, however, effectively guides the liquid flow downward through a V-shaped design, improving flushing coverage in the lower area. Through this technical solution, this application solves the problems of severe clogging and suboptimal flushing in the lower area of ​​dust filters. By optimizing the liquid flow path, it enhances the cleaning effect of the lower packing, reduces the risk of clogging, and extends the service life of the filter.

[0051] In some embodiments, see Figure 1 、 Figure 2 A flushing pipe 102 is provided in the first cylinder 101. The flushing pipe 102 has a plurality of downwardly disposed nozzles. The flushing pipe 102 is also provided with a connecting inlet 103 passing through the first cylinder 101. The connecting inlet 103 is used to connect to an external liquid supply system.

[0052] The flushing pipe 102 is a pipe for conveying flushing liquid, which can be realized by metal pipe or plastic pipe for easy installation and maintenance. In the scheme, the flushing pipe 102 is arranged in the first cylinder 101 to ensure that the flushing liquid acts on the lower modular filter part 2.

[0053] The nozzle refers to an opening on the flushing pipe 102 for spraying flushing liquid, which can be achieved by using a small hole or a nozzle. The nozzle is set downward so that the flushing liquid is sprayed vertically downward to directly impact the filter filler 202.

[0054] The connection inlet 103 refers to the inlet on the flushing pipe 102, which is used to connect to the external liquid supply system. Specifically, it can be achieved by using a joint or a flange, passing through the first cylinder 101 to achieve seamless connection with the external system.

[0055] Through the above technical solution, the present application solves the problem of unsatisfactory flushing effect of the lower part of the dust removal filter, and reduces blockage and extends the service life of the filter by directly flushing the lower modular filter part 2 downward.

[0056] The shape and distribution position of the flushing pipe 102 can be adjusted according to actual needs.

[0057] For example, in some embodiments, see Figure 2 , the flushing pipe 102 is a spiral coil.

[0058] The spiral coil refers to a spiral-shaped coil design of the flushing pipe 102, which can be specifically achieved by bending a metal pipe into a spiral shape. In this solution, the spiral coil uses spirally arranged nozzles to spray the flushing liquid at multiple angles, covering different positions of the filter packing, thereby solving the problem of uneven flushing liquid distribution.

[0059] Through the above technical solution, the present application solves the problem of poor cleaning effect on the lower part of the dust removal filter due to uneven distribution of the flushing liquid, improves the overall cleaning efficiency, and extends the service life of the equipment.

[0060] Furthermore, at least one support member 104 is connected between the flushing pipe 102 and the first cylinder 101 .

[0061] The support member 104 refers to a connection structure for fixing the flushing pipe 102 , which can be implemented by a metal bracket or a buckle to prevent the pipe from being displaced due to fluid pressure or vibration.

[0062] In some specific embodiments, the support member 104 can be a metal rod welded to the inner wall of the first cylinder 101; or, the support member 104 can be a detachable clamp; for example, the number of support members 104 can be more than two, distributed at different positions of the spiral coil.

[0063] Through the above technical solution, this application effectively prevents pipeline displacement, ensures consistent coverage of the flushing liquid, improves the cleaning effect of the filter filler, and extends the service life of the dust removal filter.

[0064] refer to Figure 3 The present application provides a washing distillation tower, comprising a tower body 90 and a filter 91 and a plate tray 92 arranged in the tower body 90, wherein the plate tray 92 is arranged above the filter 91; the filter 91 is the dust removal filter mentioned above.

[0065] A connection nozzle for connecting the corresponding connection inlet 103 and the external liquid supply system may be provided at a position on the tower body 90 facing each connection inlet 103 , so as to achieve communication between each connection inlet 103 and the external liquid supply system.

[0066] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0067] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A dust removal filter, characterized in that: The invention comprises a plurality of modular flushing sections (1) and a plurality of modular filter sections (2), wherein the plurality of modular flushing sections (1) and the plurality of modular filter sections (2) are alternately arranged from top to bottom and are connected in a detachable manner, and the upper side of each modular filter section (2) is connected to one modular flushing section (1); the modular flushing section (1) is used to be connected to an external liquid supply system to flush the modular filter section (2) on the lower side; the modular filter section (2) comprises a plurality of grid carriers (201) and filter fillers (202) filled on the grid carriers (201), and the modular filter section (2) is used to filter the airflow flowing therethrough.

2. The dust removal filter according to claim 1, characterized in that The modular flushing section (1) comprises a first cylinder (101), the modular filtering section (2) comprises a second cylinder (203), and the modular flushing section (1) and the modular filtering section (2) are connected via the first cylinder (101) and the second cylinder (203).

3. The dust removal filter according to claim 2, characterized in that: The first cylinder (101) and the second cylinder (203) are connected via threads.

4. The dust removal filter according to claim 2, characterized in that The first cylinder (101) and the second cylinder (203) are both provided with a plurality of connecting through holes (3) extending in an up-down direction, and the connecting through holes (3) on the first cylinder (101) and the connecting through holes (3) on the second cylinder (203) are provided in a one-to-one correspondence; all the modular flushing parts (1) and all the modular filtering parts (2) are connected by a plurality of bolts (4) passing through the connecting through holes (3).

5. The dust removal filter according to claim 2, characterized in that A plurality of carrier plates are provided in the second cylinder (203), each carrier plate layer comprising a plurality of grid carrier plates (201) arranged parallel to each other at the same height, and the grid carrier plates (201) in any adjacent carrier plate layers are staggered in the horizontal direction.

6. The dust removal filter according to claim 5, characterized in that The grid carrier plate (201) is a V-shaped grid plate with the tip facing downward.

7. The dust removal filter according to claim 2, characterized in that A flushing pipe (102) is provided in the first cylinder (101), and the flushing pipe (102) is provided with a plurality of downwardly disposed nozzles. The flushing pipe (102) is also provided with a connection inlet (103) passing through the first cylinder (101), and the connection inlet (103) is used to connect to an external liquid supply system.

8. The dust removal filter according to claim 7, characterized in that The flushing pipe (102) is a spiral coil.

9. The dust removal filter according to claim 8, characterized in that At least one support member (104) is connected between the flushing pipe (102) and the first cylinder (101).

10. A washing fractionation tower, comprising a tower body (90), a filter (91) and a plate tray (92) arranged in the tower body (90), wherein the plate tray (92) is arranged above the filter (91); characterized in that: The filter (91) is the dust removal filter according to any one of claims 1 to 9.

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