Adipic acid production filtration apparatus

Abstract

The application provides a filter equipment for adipic acid production and relates to the technical field of filter equipment, wherein the filter equipment for adipic acid production comprises a tank body, the inner side wall of the tank body is provided with a scraper, a filter mechanism is rotationally arranged in the tank body, the filter mechanism comprises two groups of filter plate assemblies and two groups of movable plate assemblies, the filter plate assemblies and the movable plate assemblies are alternately arranged and can surround a first cavity, the first cavity is suitable for being communicated with a liquid outlet, the two groups of filter plate assemblies are located at a first position and a second position respectively, the filter plate assembly located at the first position can surround a second cavity with the inner wall of the tank body, and the second cavity is suitable for being communicated with a liquid inlet; the filter mechanism can be rotated to exchange the positions of the two groups of filter plate assemblies, and the scraper can scrape off the waste on the filter plate assemblies during the rotation of the filter mechanism, so that the filter equipment for adipic acid production can greatly reduce the cleaning cost of the filter equipment and is favorable for improving the production efficiency of adipic acid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering equipment, in particular to a filtering equipment for adipic acid production. BACKGROUND

[0002] In the process of producing adipic acid, the separated and washed adipic acid cake contains a small amount of colored impurities, and in the activated carbon treatment section, the crude adipic acid needs to be dissolved and then decolorized with activated carbon. Since activated carbon is a black solid powder, it needs to be removed in the subsequent section to meet the product specification requirements of adipic acid.

[0003] For activated carbon filtration in adipic acid solution, the development, improvement and perfection of the production process particularly pay attention to environmental protection, system safety and convenient waste solid treatment. If the process is unreasonable, environmental pollution problems and personal injuries may occur. Therefore, the design principle of the process method is to improve the reliability of the device as much as possible and reduce the discharge of process materials.

[0004] The traditional activated carbon filtration production process in adipic acid production adopts a filter core filter, and the adipic acid solution containing activated carbon is pumped into the activated carbon filter by a feed pump. During operation, as the adipic acid containing activated carbon solution continuously enters the activated carbon filter, the filter cake thickness in the filter continuously increases, and when the pressure difference of the filter inlet and outlet pipeline reaches a certain value, the filter equipment needs to be closed, and the internal activated carbon filter needs to be cleaned, which is time-consuming and laborious, and will affect the production efficiency.

[0005] It should be noted that the information disclosed in the background section of the present application is only intended to deepen the understanding of the general background of the present application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0006] Therefore, it is necessary to provide a filtering equipment for adipic acid production in view of the problems existing in the current filtering equipment for adipic acid production.

[0007] The above-mentioned purpose is realized by the following technical scheme:

[0008] A filtering equipment for adipic acid production, comprising:

[0009] A tank body, an inner side wall of the tank body is provided with a scraper;

[0010] The filtering mechanism is rotatably arranged in the tank body, and comprises two groups of filtering plate assemblies and two groups of movable plate assemblies, the filtering plate assemblies and the movable plate assemblies are arranged alternately and can surround a first cavity, the first cavity is adapted to communicate with the liquid outlet, the two groups of filtering plate assemblies are located at a first position and a second position respectively, the filtering plate assembly located at the first position can surround a second cavity with the inner wall of the tank body, and the second cavity is adapted to communicate with the liquid inlet;

[0011] The filtering mechanism can rotate to exchange the positions of the two groups of filtering plate assemblies, and the scraper can scrape off the waste on the filtering plate assemblies during the rotation of the filtering mechanism.

[0012] Further, the filtering plate assembly comprises a first filtering plate and a second filtering plate hingedly connected to each other, and the first filtering plate and the second filtering plate are respectively hingedly connected to the movable plate assemblies on opposite sides, and the movable plate assembly comprises a first movable plate and a second movable plate connected to each other in a sliding manner.

[0013] Further, a first return spring is arranged between the first filtering plate and the movable plate assembly adjacent to the first filtering plate, and the first return spring can push the first filtering plate to rotate towards the inner side wall of the tank body.

[0014] Further, the inner bottom wall of the tank body is provided with an annular sliding groove, and the filtering plate assembly is provided with a sliding block, and the sliding block can slide along the sliding groove to exchange the positions of the filtering plate assembly located at the first position and the second position.

[0015] Further, the inner bottom wall is further provided with a limiting groove at the first position and the second position respectively, the limiting groove communicates with the sliding groove, and the sliding block can slide from the limiting groove into the sliding groove or from the sliding groove into the limiting groove.

[0016] Further, a rack and a force storage shaft are further included, the force storage shaft is engaged with the rack, one end of the rack is connected to the movable plate assembly, when the sliding block slides from the limiting groove to the sliding groove, the first movable plate and the second movable plate slide towards each other and drive the force storage shaft to rotate forward to store force, and when the sliding block slides from the limiting groove into the sliding groove, the force storage shaft rotates reversely to drive the filtering mechanism to rotate.

[0017] Further, a torsional spring is further included, one end of the torsional spring is connected to the force storage shaft, and the other end of the torsional spring is connected to the inner bottom wall of the tank body.

[0018] Further, the sliding groove is provided with a stop block at the opening end of the limiting groove.

[0019] Further, the filter plate assembly located at the second position can form a third cavity with the inner wall of the tank body, and the third cavity is suitable for communicating with the first liquid discharge valve.

[0020] Further, the movable plate assembly can form a fourth cavity with the inner wall of the tank body, and the fourth cavity is suitable for communicating with the second liquid discharge valve.

[0021] The beneficial effects of the present application are:

[0022] The tank body of the adipic acid production filtering device is provided with two groups of filter plate assemblies, and the filtering mechanism can rotate to exchange the positions of the two groups of filter plate assemblies. During the rotation of the filtering mechanism, the scraper can scrape off the waste on the filter plate assemblies, thereby achieving the effect of cleaning the filter plate assemblies, without the need to stop the filtering device for cleaning, thereby greatly reducing the cleaning cost of the filtering device, and being conducive to improving the production efficiency of adipic acid. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of the adipic acid production filtering device according to an embodiment of the present application;

[0024] Figure 2 It is a side view of the adipic acid production filtering device according to an embodiment of the present application;

[0025] Figure 3 It is a perspective view of the adipic acid production filtering device according to an embodiment of the present application; Figure 2 It is a sectional view of the adipic acid production filtering device according to an embodiment of the present application;

[0026] Figure 4 It is a sectional view of the adipic acid production filtering device according to an embodiment of the present application; Figure 3 It is an enlarged view of A of the adipic acid production filtering device according to an embodiment of the present application;

[0027] Figure 5 It is an enlarged view of B of the adipic acid production filtering device according to an embodiment of the present application; Figure 3 It is an enlarged view of B of the adipic acid production filtering device according to an embodiment of the present application;

[0028] Figure 6 It is an enlarged view of B of the adipic acid production filtering device according to an embodiment of the present application; Figure 3 It is an enlarged view of B of the adipic acid production filtering device according to an embodiment of the present application;

[0029] Figure 7 It is a top view of the adipic acid production filtering device according to an embodiment of the present application;

[0030] Figure 8 It is a sectional view of the adipic acid production filtering device according to an embodiment of the present application; Figure 7 It is a sectional view of the adipic acid production filtering device according to an embodiment of the present application;

[0031] Figure 9 It is an enlarged view of C of the adipic acid production filtering device according to an embodiment of the present application; Figure 8 It is an enlarged view of C of the adipic acid production filtering device according to an embodiment of the present application;

[0032] Figure 10 It is a top view of the adipic acid production filtering device according to another embodiment of the present application;

[0033] Figure 11 For Figure 10 A cross-sectional view of C-C of the adipic acid production filtering device shown;

[0034] Figure 12 For Figure 11 An enlarged view of D.

[0035] Wherein:

[0036] 100, tank body; 101, hook; 102, liquid outlet; 103, liquid inlet; 104, support leg; 105, first liquid discharge valve; 1051, second liquid discharge valve; 106, chute; 1061, limiting groove; 1062, stop block; 107, liquid discharge port; 108, scraper; 109, inner bottom wall; 200, filtering mechanism; 201, filter plate assembly; 2011, sliding block; 2012, first filter plate; 2013, second filter plate; 202, movable plate assembly; 2021, first movable plate; 2022, second movable plate; 203, first return spring; 210, connecting piece; 211, second gear; 212, matching block; 213, second return spring; 214, rack; 220, force storage shaft; 221, torsional spring; 222, first gear; 310, first cavity; 320, second cavity; 330, third cavity; 340, fourth cavity. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0038] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "coupling" of the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0040] Referring to Figures 1 to 12 In some embodiments of the present application, the adipic acid production filtering device comprises a tank body 100, the inner side wall of the tank body 100 is provided with a scraper 108. A filtering mechanism 200 is rotatably arranged in the tank body 100, the filtering mechanism 200 comprises two groups of filtering plate assemblies 201 and two groups of movable plate assemblies 202, the filtering plate assemblies 201 and the movable plate assemblies 202 are arranged alternately and can surround a first cavity 310, the first cavity 310 is suitable for being communicated with a liquid outlet 102, the two groups of filtering plate assemblies 201 are located at a first position and a second position respectively, the filtering plate assembly 201 located at the first position can surround a second cavity 320 with the inner wall of the tank body 100, the second cavity 320 is suitable for being communicated with a liquid inlet 103. Wherein, the filtering mechanism 200 can rotate to exchange the positions of the two groups of filtering plate assemblies 201, and the scraper 108 can scrape off the waste on the filtering plate assembly 201 during the rotation of the filtering mechanism 200.

[0041] Referring to Figure 3 It should be noted that the first position and the second position are symmetrically arranged, the filtering plate assembly 201 located at the first position can surround the second cavity 320 with the inner wall of the tank body 100, the side wall of the tank body 100 is provided with the liquid inlet 103, the unfiltered adipic acid solution enters the second cavity 320 from the liquid inlet 103, the filtering plate assembly 201 can filter the adipic acid solution and then flow into the first cavity 310, and the filtered adipic acid solution can flow out of the liquid outlet 102, completing the filtering.

[0042] Referring to Figure 3It should be noted that when the waste on the filter plate assembly 201 is accumulated too much, the filter holes on the filter plate assembly 201 will be blocked. At this time, the filter mechanism 200 can be rotated to rotate the filter plate assembly 201 in the first position to the second position. The filter mechanism 200 can be rotated clockwise or counterclockwise, and during the rotation, the scraper 108 on the inner side wall of the tank body 100 can scrape off the waste on the filter plate assembly 201. Among them, the scraper 108 is a flexible metal plate welded to the tank body 100, so that the scraper 108 can be in contact with the surface of the filter plate assembly 201, so that during the rotation of the filter plate assembly 201, the scraper 108 can scrape off the waste on the surface of the filter plate assembly 201. The filter plate assembly 201 in the second position can be rotated to the first position to continue filtering the adipic acid solution. This operation cycle does not need to stop for cleaning the filter plate assembly 201, thereby facilitating the improvement of the adipic acid production efficiency.

[0043] With reference to Figures 3 to 6 It can be understood that in some embodiments of the present application, the filter plate assembly 201 includes a first filter plate 2012 and a second filter plate 2013 hingedly connected to each other, and the first filter plate 2012 and the second filter plate 2013 are respectively hingedly connected to the movable plate assemblies 202 on opposite sides, and the movable plate assemblies 202 include first movable plates 2021 and second movable plates 2022 connected in opposite sliding connection.

[0044] It should be noted that each filter plate assembly 201 includes a first filter plate 2012 and a second filter plate 2013, and one end of the first filter plate 2012 and one end of the second filter plate 2013 are hingedly connected. The movable plate assemblies 202 include first movable plates 2021 and second movable plates 2022 connected in opposite sliding connection. One end of the first filter plate 2012 away from the second filter plate 2013 is hingedly connected to one of the movable plate assemblies 202, and one end of the second filter plate 2013 away from the first filter plate 2012 is hingedly connected to the other movable plate assembly 202. The two filter plate assemblies 201 are respectively located at opposite ends of the movable plate assemblies 202.

[0045] With reference to Figures 1 to 3 The tank body 100 is cylindrical. When the filter plate assembly 201 in the first position is not blocked, the two ends of the first filter plate 2012 and the second filter plate 2013 are in contact with the inner side wall of the tank body 100, and the two movable plate assemblies 202 are arranged in a hexagonal structure. When the filter plate assembly 201 in the first position is blocked, the water pressure of the second cavity 320 can push the first filter plate 2012 and the second filter plate 2013 to rotate.

[0046] With reference to Figure 3It can be understood that, in some embodiments of the present application, a first reset spring 203 is arranged between the first filter plate 2012 and the movable plate assembly 202 adjacent to the first filter plate 2012, and the first reset spring 203 can push the first filter plate 2012 to rotate towards the inner side wall of the tank body 100.

[0047] With reference to Figure 3 It should be noted that the first reset spring 203 is arranged between the first filter plate 2012 and the movable plate assembly 202 adjacent to the first filter plate 2012, one end of the first reset spring 203 abuts against the first filter plate 2012, and the other end abuts against the movable plate assembly 202. The first reset spring 203 is also arranged between the second filter plate 2013 and the movable plate assembly 202 adjacent to the second filter plate 2013, one end of the first reset spring 203 abuts against the second filter plate 2013, and the other end abuts against the movable plate assembly 202. The first reset spring 203 can promote the first filter plate 2012 and the second filter plate 2013 to rotate towards the inner side wall of the tank body 100, so that the hinged end of the first filter plate 2012 and the second filter plate 2013 can abut against the inner wall of the tank body 100.

[0048] With reference to Figure 3 , Figure 5 and Figure 9 It can be understood that, in some embodiments of the present application, the inner bottom wall 109 of the tank body 100 is provided with an annular sliding groove 106, and the filter plate assembly 201 is provided with a sliding block 2011, which can slide along the sliding groove 106, so that the filter plate assembly 201 in the first position and the second position can be exchanged.

[0049] It should be noted that the inner bottom wall 109 of the tank body 100 is provided with an annular sliding groove 106, and the lower end of the filter plate assembly 201 is provided with a sliding block 2011, for example, the lower end of the second filter plate 2013 or the first filter plate 2012 is provided with a sliding block 2011, which is embedded in the sliding groove 106, and the sliding block 2011 can slide along the sliding groove 106, so that the filter mechanism 200 can rotate, thereby enabling the filter plate assembly 201 in the first position and the second position to be exchanged. The annular sliding groove 106 can be a circular sliding groove.

[0050] With reference to Figure 3 , Figure 5 , Figure 11 and Figure 12 It can be understood that, in some embodiments of the present application, the inner bottom wall 109 is further provided with a limiting groove 1061 at the first position and the second position, respectively, the limiting groove 1061 communicates with the sliding groove 106, and the sliding block 2011 can slide from the limiting groove 1061 into the sliding groove 106, or from the sliding groove 106 into the limiting groove 1061.

[0051] As Figure 3 shown, it should be noted that the inner bottom wall 109 of the tank body 100 is provided with a limiting groove 1061 at the first position and the second position respectively. The limiting groove 1061 is in communication with the sliding groove 106. The sliding block 2011 can slide into the limiting groove 1061 to limit the rotation of the filtering mechanism 200. When the filter holes on the filter plate assembly 201 are blocked, the hydraulic pressure of the second cavity 320 increases, which can press the filter plate assembly 201 at the first position to make the filter plate assembly 201 slide along the limiting groove 1061. The limiting groove 1061 is arc-shaped, and the limiting groove 1061 at the first position and the limiting groove 1061 at the second position are symmetrically arranged at the center. During the sliding process, the hinged position of the first filter plate 2012 and the second filter plate 2013 gradually moves to the center axis of the tank body 100, and the two filter plate assemblies 201 gradually approach, and the two movable plate assemblies 202 gradually move away. When the sliding block 2011 slides into the sliding groove 106, the movable plate assembly 202 and the filter plate assembly 201 form a rectangle. Then, the sliding block 2011 slides along the sliding groove 106, and the sliding block 2011 originally at the first position slides into the limiting groove 1061 at the second position, and the sliding block 2011 originally at the second position slides into the limiting groove 1061 at the first position. At this time, the filter plate assembly 201 at the first position is not blocked, and the first return spring 203 can push the first filter plate 2012 and the second filter plate 2013 to rotate towards the inner side wall of the tank body 100, so that the hinged end of the first filter plate 2012 and the second filter plate 2013 can abut against the inner wall of the tank body 100.

[0052] With reference to Figure 3 , Figure 4 and Figure 8 , it can be understood that, in some embodiments of the present application, the adipic acid production filtering device further comprises a rack 214 and a force storage shaft 220, the force storage shaft 220 is in meshing connection with the rack 214, one end of the rack 214 is connected to the movable plate assembly 202. When the sliding block 2011 slides from the limiting groove 1061 to the sliding groove 106, the first movable plate 2021 and the second movable plate 2022 slide towards each other, and drive the force storage shaft 220 to rotate forward to store force. When the sliding block 2011 slides from the limiting groove 1061 to the sliding groove 106, the force storage shaft 220 reversely rotates to drive the filtering mechanism 200 to rotate.

[0053] It should be noted that the force storage shaft 220 is fixedly provided with a first gear 222, the force storage shaft 220 is connected with the rack 214 through the first gear 222, and one end of the rack 214 is connected with the movable plate assembly 202. The rack 214 is provided with two, the two racks 214 are arranged on the opposite sides of the first gear 222, and the two racks 214 are connected to the two movable plate assemblies 202 respectively. Referring to Figure 4 The first movable plate 2021 and the second movable plate 2022 are provided with meshing teeth, the first movable plate 2021 and the second movable plate 2022 are connected with the second gear 211 through the meshing teeth, so that the first movable plate 2021 and the second movable plate 2022 can move synchronously. The first movable plate 2021 and the second movable plate 2022 are connected with the connecting piece 210, so that the first movable plate 2021 and the second movable plate 2022 are stably engaged. The connecting piece 210 is also provided with a matching block 212, one end of the rack 214 is clamped with the matching block 212. The matching block 212 is provided with a clamping groove, the bottom wall of the clamping groove is inclined, the rack 214 can be inserted into the clamping groove, the clamping groove and the rack 214 are provided with clamping hooks that can be clamped with each other, so as to limit the rack 214 from being separated from the clamping groove, one end of the rack 214 is provided with an inclined surface that abuts against the bottom wall of the clamping groove, and the matching block 212 can slide along the bottom wall of the clamping groove. The second reset spring 213 is arranged in the clamping groove, one end of the second reset spring 213 abuts against the inner wall of the clamping groove, and the other end of the second reset spring 213 abuts against the rack 214.

[0054] When the two movable plate assemblies 202 move away from each other, the two racks 214 are pulled to move away from each other, the force storage shaft 220 is pulled to rotate forward to store force, and the second reset spring 213 abuts against the rack 214 when the force storage shaft 220 rotates, so that the rack 214 can be stably engaged with the first gear 222. When the two movable plate assemblies 202 move close to each other, the two racks 214 are pulled to move close to each other, and the two racks 214 slide away from each other along the bottom wall of the clamping groove due to the resistance of the engagement of the rack 214 and the first gear 222. At this time, the rack 214 can compress the second reset spring 213, and the rack 214 will jump a tooth, and the second reset spring 213 will reset the rack 214 after the rack 214 jumps a tooth. During the process that the two racks 214 move close to each other, the rack 214 will repeatedly jump and reset, so that when the filter mechanism 200 is reset from a rectangle to a hexagon, the torsional spring 221 on the force storage shaft 220 will not store force, so as to avoid that the force storage shaft 220 cannot store force when the filter mechanism 200 rotates next time, so that the filter mechanism 200 cannot be driven to rotate.

[0055] It should be noted that when the sliding block 2011 slides from the limiting groove 1061 to the sliding groove 106, the filter plate assembly 201 can push the two movable plate assemblies 202 away from each other, and push the first movable plate 2021 and the second movable plate 2022 to slide towards each other, so that the overall length of the movable plate assembly 202 gradually shortens. The two movable plate assemblies 202 can drive the rack 214 to move, thereby driving the force storage shaft 220 to rotate forward to store force. The limiting groove 1061 can limit the rotation of the filtering mechanism 200. When the sliding block 2011 slides from the limiting groove 1061 to the sliding groove 106, the force storage shaft 220 can be reversely rotated to drive the filtering mechanism 200 to rotate, so that the filter plate assembly 201 at the first position is rotated to the second position, and the sliding block 2011 can slide into the limiting groove 1061 at the second position.

[0056] With reference to Figure 11 and Figure 12 The sliding groove 106 is provided with a stop block 1062 at the opening end of the limiting groove 1061. The stop block 1062 is a protrusion provided on the outer side wall of the sliding groove 106 and facing the inner side wall of the sliding groove 106, and the stop block 1062 has a gap with the inner side wall of the sliding groove 106. The inner side wall of the sliding groove 106 is provided with an opening communicating with the limiting groove 1061, and the sliding direction of the sliding block 2011 is from the first end to the second end of the opening, and the stop block 1062 is located at the second end of the opening. When the sliding block 2011 slides in the sliding groove 106, the first return spring 203 has a tendency to push the first filter plate 2012 to rotate towards the inner side wall of the tank 100, so as to push the sliding block 2011 mounted on the first filter plate 2012 to abut against the outer side wall of the sliding groove 106 and slide along the outer side wall of the sliding groove 106. When the sliding block 2011 at the first position slides to the limiting groove 1061 at the second position, since the inner side wall of the sliding groove 106 is provided with an opening communicating with the limiting groove 1061, the sliding block 2011 can slide into the limiting groove 1061 from the opening of the inner side wall of the sliding groove 106. When the sliding block 2011 fails to slide into the limiting groove 1061 from the opening in time due to too fast sliding or other reasons, the stop block 1062 can block the sliding block 2011, so that the sliding block 2011 can slide into the limiting groove 1061. When the sliding block 2011 at the second position slides to the limiting groove 1061 at the first position, the process is the same as that when the sliding block 2011 at the first position slides to the limiting groove 1061 at the second position.

[0057] It should be noted that when the sliding block 2011 slides into the slide groove 106 from the limiting groove 1061, the first reset spring 203 has a tendency to push the first filter plate 2012 to rotate towards the inner side wall of the tank 100, so as to push the sliding block 2011 installed on the first filter plate 2012 to abut against one end of the limiting groove 1061 provided with the stopper 1062, and slide along the side wall of the limiting groove 1061, so as to slide into the slide groove 106 along the stopper 1062, and slide into the slide groove 106 from the gap between the stopper 1062 and the inner side wall of the slide groove 106, so that the filter mechanism 200 can rotate along the slide groove 106.

[0058] With reference to Figure 8 and Figure 9 The adipic acid production filter device further comprises a torsion spring 221, one end of the torsion spring 221 is connected to the force storage shaft 220, and the other end is connected to the inner bottom wall 109 of the tank 100. The inner bottom wall 109 is provided with a positioning groove, the force storage shaft 220 is partially inserted into the positioning groove, the movable end of the torsion spring 221 is connected to the force storage shaft 220, and the fixed end is connected to the inner wall of the positioning groove. The forward rotation of the force storage shaft 220 is used for storing the force of the torsion spring 221, and when the sliding block 2011 slides into the slide groove 106 from the limiting groove 1061, the torsion spring 221 is released, so as to drive the force storage shaft 220 to rotate reversely, so as to drive the filter mechanism 200 to rotate.

[0059] With reference to Figure 3 and Figure 6 It can be understood that in some embodiments of the present application, the filter plate assembly 201 located at the second position can surround the inner wall of the tank 100 to form a third cavity 330, and the third cavity 330 is suitable for being in communication with the first liquid discharge valve 105.

[0060] It should be noted that the filter plate assembly 201 located at the second position can surround the inner wall of the tank 100 to form a third cavity 330. When the filter plate assembly 201 at the first position rotates to the second position, the residues on the filter plate assembly 201 can be scraped by the scraper 108 and fall into the third cavity 330, or the residues on the filter plate assembly 201 can be washed by the liquid in the first cavity 310 and fall into the third cavity 330. The tank 100 is provided with the first liquid discharge valve 105 at the corresponding position, the first liquid discharge valve 105 is in communication with the third cavity 330, so as to be capable of discharging the waste liquid in the third cavity 330.

[0061] It should be noted that, when the filter plate assembly 201 at the first position is rotated to the second position, the hydraulic pressure in the first cavity 310 can reversely flush the filter plate assembly 201 at the second position, that is, after the waste liquid in the third cavity 330 is discharged from the first liquid discharge valve 105, the partially filtered liquid in the first cavity 310 will flow to the third cavity 330, thereby back-flushing the filter plate assembly 201 at the second position, so as to further clean the filter plate assembly 201.

[0062] With reference to Figure 3 It can be understood that, in some embodiments of the present application, the movable plate assembly 202 can be surrounded by the inner wall of the tank body 100 to form a fourth cavity 340, and the fourth cavity 340 is adapted to communicate with the second liquid discharge valve 1051.

[0063] It should be noted that the movable plate assembly 202 and the inner wall of the tank body 100 form a fourth cavity 340, and when the filter plate assembly 201 and the movable plate assembly 202 surround a rectangular structure, the residues in the second cavity 320 or the third cavity 330 can flow into the fourth cavity 340. The tank body 100 is provided with a second liquid discharge valve 1051 at a corresponding position, and the second liquid discharge valve 1051 can communicate with the fourth cavity 340, so as to discharge the waste liquid in the fourth cavity 340.

[0064] As Figure 1 It can be understood that, in some embodiments of the present application, the outer wall of the tank body 100 is also provided with a hook 101, and the tank body 100 can be hoisted by the hook 101. The hook 101 can be provided at intervals, for example, two, three or four, etc.

[0065] With reference to Figure 1 The bottom end of the tank body 100 is also provided with a plurality of legs 104, which can be used to support the tank body 100.

[0066] With reference to Figure 11 The lower side of the tank body 100 is also provided with a plurality of liquid discharge ports 107, which are used to discharge the residual liquid in the tank body 100.

[0067] The adipic acid production filtering device of the embodiment of the present application does not need to stop cleaning, thereby greatly reducing the cleaning cost of the filtering device, and is beneficial to improving the adipic acid production efficiency.

[0068] The filtering process of the adipic acid production filtering device of the present application comprises: when the waste on the filtering plate assembly 201 in the first position is too much, the filtering holes on the filtering plate assembly 201 in the first position are blocked, resulting in slow liquid outflow, while the liquid inflow speed of the liquid inflow port 103 remains unchanged, which causes the pressure in the second cavity 320 to increase, so that the larger water pressure of the second cavity 320 can drive the first filtering plate 2012 and the second filtering plate 2013 in the first position to rotate along the limiting groove 1061, and the sliding block 2011 at the lower end of the filtering plate assembly 201 slides in the limiting groove 1061, and in the sliding process of the sliding block 2011 in the limiting groove 1061, the filtering plate assembly 201 can drive the two movable plate assemblies 202 to move away from each other, so that the movable plate assembly 202 can drive the force storage shaft 220 to rotate through the rack 214, so that the force storage shaft 220 stores force. When the sliding block 2011 slides into the sliding groove 106, the force storage shaft 220 releases, that is, the force storage shaft 220 reversely rotates, thereby driving the filtering mechanism 200 to rotate as a whole until the filtering plate assembly 201 in the first position rotates to the second position, and the filtering plate assembly 201 in the second position rotates to the first position, and the inner bottom wall 109 of the tank body 100 is provided with a limiting groove 1061 at the first position and the second position. The limiting groove 1061 communicates with the sliding groove 106. After the sliding block 2011 in the first position slides to the second position, it can slide into the limiting groove 1061 at the second position. After the sliding block 2011 in the second position slides to the first position, it can slide into the limiting groove 1061 at the second position to limit the rotation of the filtering mechanism 200. In the sliding process of the sliding block 2011 in the limiting groove 1061, the first return spring 203 can drive the first filtering plate 2012 and the second filtering plate 2013 to rotate towards the inner side wall of the tank body 100, that is, the hinge joint position of the first filtering plate 2012 and the second filtering plate 2013 moves away from the center axis of the tank body 100, at the same time, the two movable plate assemblies 202 move close to each other until the hinge joint end of the first filtering plate 2012 and the second filtering plate 2013 abuts against the inner wall of the tank body 100, so that the two oppositely arranged filtering plate assemblies 201 and the two oppositely arranged movable plate assemblies 202 can form a hexagon. At this time, the filtering plate assembly 201 in the first position is clean and can continue to perform filtering work. During the rotation of the filtering mechanism 200, the scraper 108 on the inner side wall of the tank body 100 can scrape off the waste on the filtering plate assembly 201 in the first position, thereby achieving the effect of cleaning the filtering plate assembly 201.

[0069] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0070] The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A filtration device for adipic acid production, characterized in that, include: A tank body (100) is provided with a scraper (108) on its inner side wall; A filtration mechanism (200) is rotatably disposed within the tank (100). The filtration mechanism (200) includes two sets of filter plate assemblies (201) and two sets of movable plate assemblies (202). The filter plate assemblies (201) and the movable plate assemblies (202) are alternately arranged and can surround each other to form a first cavity (310). The first cavity (310) is adapted to communicate with the liquid outlet (102). The two sets of filter plate assemblies (201) are respectively located in a first position and a second position. The filter plate assembly (201) located in the first position can surround the inner wall of the tank (100) to form a second cavity (320). The second cavity (320) is adapted to communicate with the liquid inlet (103). The filter mechanism (200) is rotatable so that the positions of the two sets of filter plate assemblies (201) are interchanged. During the rotation of the filter mechanism (200), the scraper (108) can scrape off the waste material on the filter plate assembly (201).

2. The adipic acid production filtration equipment according to claim 1, characterized in that, The filter plate assembly (201) includes a first filter plate (2012) and a second filter plate (2013) that are hinged to each other. The first filter plate (2012) and the second filter plate (2013) are respectively hinged to a movable plate assembly (202) on opposite sides. The movable plate assembly (202) includes a first movable plate (2021) and a second movable plate (2022) that are slidably connected to each other.

3. The adipic acid production filtration equipment according to claim 2, characterized in that, A first return spring (203) is provided between the adjacent first filter plate (2012) and movable plate assembly (202), and the first return spring (203) can push the first filter plate (2012) to rotate toward the inner wall of the tank (100).

4. The adipic acid production filtration equipment according to claim 2, characterized in that, The inner bottom wall (109) of the tank (100) is provided with an annular groove (106), and the filter plate assembly (201) is provided with a sliding block (2011). The sliding block (2011) can slide along the groove (106) so that the filter plate assembly (201) located in the first position and the second position can interchange positions.

5. The adipic acid production filtration equipment according to claim 4, characterized in that, The inner bottom wall (109) is further provided with limiting grooves (1061) at the first position and the second position, respectively. The limiting grooves (1061) are connected to the sliding groove (106). The sliding block (2011) can slide from the limiting groove (1061) into the sliding groove (106), or slide from the sliding groove (106) into the limiting groove (1061).

6. The adipic acid production filtration equipment according to claim 5, characterized in that, It also includes a rack (214) and a power storage shaft (220), the power storage shaft (220) being meshed with the rack (214), one end of the rack (214) being connected to the movable plate assembly (202); When the sliding block (2011) slides from the limiting groove (1061) to the sliding groove (106), the first movable plate (2021) and the second movable plate (2022) slide towards each other, and drive the power storage shaft (220) to rotate in the forward direction to store power. When the sliding block (2011) slides from the limiting groove (1061) into the sliding groove (106), the power storage shaft (220) rotates in the reverse direction to drive the filter mechanism (200) to rotate.

7. The adipic acid production filtration equipment according to claim 6, characterized in that, It also includes a torsion spring (221), one end of which is connected to the energy storage shaft (220) and the other end is connected to the inner bottom wall (109) of the tank (100).

8. The adipic acid production filtration equipment according to claim 5, characterized in that, The slide (106) is provided with a stop (1062) at the opening end of the limiting groove (1061).

9. The adipic acid production filtration equipment according to claim 1, characterized in that, The filter plate assembly (201) located in the second position is able to form a third cavity (330) around the inner wall of the tank (100), the third cavity (330) being adapted to communicate with the first drain valve (105).

10. The adipic acid production filtration equipment according to claim 1, characterized in that, The movable plate assembly (202) is capable of forming a fourth cavity (340) around the inner wall of the tank (100), the fourth cavity (340) being adapted to communicate with the second drain valve (1051).

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