Auxiliary paper pulp filtering device for toilet paper production

Abstract

The invention relates to the field of paper pulp filtering, in particular to an auxiliary paper pulp filtering device for toilet paper production, which comprises an inner filter cylinder, a cylinder seat, an outer filter cylinder, a plurality of guide pieces and a connecting seat, the top end and the bottom end of the inner filter cylinder are of open structures and are used for storing to-be-filtered paper pulp; the cylinder seat is detachably mounted at the bottom end of the inner filter cylinder and is used for pushing paper pulp upwards during rotation; the outer filter cartridge is attached to the surface of the inner filter cartridge, and the outer filter cartridge and the inner filter cartridge can rotate relatively, so that residues between the inner filter cartridge and the outer filter cartridge are cut; the plurality of guide pieces are arranged on the outer side of the outer filter cartridge in an annular array and are used for guiding liquid penetrating through the inner filter cartridge and the outer filter cartridge, so that the liquid finally falls to a preset storage position; the adapter is mounted at the top end of the inner filter cylinder and is used for performing transmission connection on the inner filter cylinder and a driving end of driving equipment, so that the driving equipment drives the inner filter cylinder to rotate. The cleaning efficiency is higher, and waste of time and paper cannot be caused.

Description

Technical Field

[0001] The invention relates to the field of pulp filtration, in particular to an auxiliary pulp filtration device for toilet paper production. Background Art

[0002] Currently, waste paper is being recycled, and after the waste paper is crushed and pulped, there will be some solid waste and flocculent residue in the pulp, so it needs to be filtered to ensure the quality of the finished paper.

[0003] The existing filtering method is usually to pass the pulp into the filter box and filter it using a filter screen. However, due to the presence of flocculent residue in the pulp, it will clog the mesh of the filter screen for a long time, affecting the filtration efficiency of the slurry, so that the filtration cannot be carried out normally and needs to be dismantled and cleaned.

[0004] In addition, another treatment method is to manually pour the pulp in the cylinder directly onto the filter screen. A lot of hot pulp will splash, which is quite dangerous. Moreover, since the fluidity of the pulp is not particularly good, it will cause local accumulation of the pulp, which is not conducive to the rapid filtration operation of the pulp. At the same time, since there are a lot of solid fibers in the pulp, the filter holes will be blocked after a period of time of pouring pulp, and need to be manually removed for cleaning, which affects the filtration efficiency of the pulp. In addition, a large amount of pulp will adhere to the discarded solid fibers, resulting in waste of pulp. Summary of the Invention

[0005] Based on this, it is necessary to provide an auxiliary pulp filtration device for toilet paper production to address the above technical problems. The separation of solids and liquids in the device is more obvious. By adding a storage position for the filter screen, effective filtration of the pulp can be achieved, and there is no need for manual cleaning one by one during cleaning. The cleaning efficiency is higher and there is no waste of time and paper.

[0006] The present invention provides an auxiliary pulp filtering device for toilet paper production, comprising:

[0007] The inner filter cartridge has an open structure at both the top and bottom ends and is used to store the pulp to be filtered;

[0008] a cartridge seat, detachably mounted on the bottom end of the inner filter cartridge, for pushing the pulp upward during rotation;

[0009] An outer filter cartridge is fitted on the surface of the inner filter cartridge, and the outer filter cartridge and the inner filter cartridge can rotate relative to each other, thereby cutting the residue between the inner filter cartridge and the outer filter cartridge;

[0010] A plurality of guide members are arranged in an annular array on the outside of the outer filter cartridge, and are used to guide the liquid passing through the inner filter cartridge and the outer filter cartridge so that the liquid finally falls into a predetermined storage position;

[0011] The adapter is installed at the top end of the inner filter cartridge and is used to transmit the inner filter cartridge to the driving end of the driving device, so that the driving device drives the inner filter cartridge to rotate.

[0012] In one embodiment, the inner filter cartridge includes a first annular shell, a first annular tube and a second annular tube; the surface of the first annular shell protrudes away from its own central axis, and a first filter hole is opened on the surface of the first annular shell. The first annular tube and the second annular tube are respectively located above and below the first annular shell, and the central axes of the three coincide and are connected to each other, and the connection is smoothly arranged.

[0013] In one embodiment, the cylinder seat includes a hemispherical shell, a fixing ring and a guide block; the fixing ring is connected to the planar end of the hemispherical shell, the inner surface of the fixing ring is threadedly connected to the outer surface of the second annular tube, and a plurality of the guide blocks are arranged in a circular array at the inner bottom end of the hemispherical shell, one end of the plurality of the guide blocks are connected to each other, and the other end is arranged on the inner surface of the hemispherical shell along the radial direction of the hemispherical shell.

[0014] In one embodiment, a plurality of guide grooves are provided at the bottom end of the second annular tube, one side of the guide grooves passes through the inner surface of the second annular tube, and the plurality of guide grooves are arranged in an annular array around the central axis of the second annular tube.

[0015] In one embodiment, a limiting ring is provided at the connection between the fixing ring and the hemispherical shell, the upper surface of the limiting ring is attached to the bottom end of the second annular tube, and a bevel is provided at the connection between the lower surface of the limiting ring and the inner ring.

[0016] In one embodiment, a water seepage hole is provided at the inner bottom end of the hemispherical shell, and the water seepage hole is located at the angle between two adjacent guide blocks. The side surface of the guide block is inclined toward the center line position of the guide block. The connection between the two adjacent guide blocks is smoothly arranged, and the inner surface of the water seepage hole and the side surface of the guide block are located on the same curved surface.

[0017] In one embodiment, the outer filter cartridge includes a second annular shell and a third annular tube; the two third annular tubes are respectively arranged at the upper and lower ends of the second annular shell, and the central axes of the three coincide, the inner surface of the second annular shell is attached to the outer surface of the first annular shell, and the second annular shell is provided with a second filter hole facing the first filter hole, and the third annular tube is attached to the first annular tube or the end of the second annular tube connected to the first annular shell.

[0018] In one embodiment, a plurality of first connecting rods are provided on the outer surface of the third annular tube, and the plurality of first connecting rods are distributed in an annular array. The end of the first connecting rod away from the third annular tube is connected to the first annular rod, and the guide member includes an arc guide plate and an arc clamping plate; the two arc clamping plates are respectively provided at the upper and lower ends of the arc guide plate, and the arc clamping plate is clamped on the first annular rod, and the arc guide plate protrudes in the direction away from the second annular shell.

[0019] In one embodiment, the arc guide plate includes a curved portion and a connecting portion; the upper and lower ends of the curved portion are respectively connected to the arc clamping plate through two connecting portions, the width of the curved portion is greater than the width of the connecting portion, and the protruding distance of the curved portion is greater than the protruding distance of the connecting portion, and the connection between the curved portion and the connecting portion has a smooth transition.

[0020] In one embodiment, the arc-shaped clamping plate is elastic, and an opening is provided on a side of the arc-shaped clamping plate that is inclined toward a side away from the center of the second annular shell, constituting a buckle interface of the arc-shaped clamping plate for buckling onto the second connecting rod.

[0021] The above-mentioned auxiliary pulp filtering device for toilet paper production is used by installing the adapter seat on the driving end of the driving device. After the two are fixedly connected, the top end of the inner filter cartridge is plugged and fixed to the bottom end of the adapter seat. The detachable installation method is convenient for taking and handling the filtering device. Then the inner filter cartridge or the outer filter cartridge is rotated and adjusted so that the filter holes of the two filter cartridges are aligned and there is no partial overlap, which affects the filtering effect. Then the cartridge seat is installed at the bottom end of the inner filter cartridge, and the guide is installed on the outside of the inner filter cartridge. At this time, the driving device can be started to drive the inner filter cartridge to rotate. The pulp in the inner filter cartridge will be continuously pushed upward under the rotation of the cartridge seat and will be centrifuged during the rotation of the inner filter cartridge. Under the action of the filter, the fibers are thrown out from the filter holes on the two filter cartridges and directly contact the inner surface of the guide. Under the guidance of the guide, they fall to the predetermined storage position. When there is fiber blockage in the filter holes, the inner filter cartridge and the outer filter cartridge are driven to rotate relative to each other, so that the fibers blocked between the filter holes of the two are cut off. At this time, centrifugal filtration can be performed to flush out the cut fibers. A filter screen can be placed for the predetermined storage position. The solid and liquid separation of the pulp centrifuged by the filter device is more obvious. With the addition of a storage position with a filter screen, effective filtration of the pulp can be achieved, and there is no need to manually clean them one by one during cleaning. The cleaning efficiency is higher and no waste of time and paper is caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the pulp filtering device provided by the present invention;

[0024] Figure 2 A schematic cross-sectional view of the pulp filtering device provided by the present invention;

[0025] Figure 3 A schematic plan view of the structure of the pulp filtering device provided by the present invention;

[0026] Figure 4 A schematic structural diagram of the inner filter cartridge provided by the present invention;

[0027] Figure 5 A schematic structural diagram of the cartridge holder provided by the present invention;

[0028] Figure 6 A schematic structural diagram of the adapter provided by the present invention;

[0029] Figure 7 A schematic structural diagram of the outer filter cartridge provided by the present invention;

[0030] Figure 8 This is a schematic structural diagram of the guide member provided by the present invention.

[0031] Reference numerals:

[0032] 100, inner filter cartridge; 110, first annular housing; 111, first filter hole; 120, first annular tube; 121, mounting hole; 130, second annular tube; 131, guide groove; 200, outer filter cartridge; 210, second annular housing; 211, second filter hole; 220, third annular tube; 230, first connecting rod; 240, first annular rod; 300, cartridge seat; 310, hemispherical housing; 311, Seepage hole; 320, fixing ring; 330, guide block; 340, limiting ring; 400, guide member; 410, arc guide plate; 411, bending portion; 412, connecting portion; 420, arc clamping plate; 500, adapter; 510, annular shell; 511, mounting cavity; 512, first insertion port; 513, second insertion port; 520, limiting block; 530, second connecting rod; 540, second annular rod. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] The following combination Figures 1 to 8 The present invention describes an auxiliary pulp filtering device for toilet paper production.

[0035] like Figures 1 to 3 As shown in one embodiment, an auxiliary pulp filtering device for toilet paper production includes an inner filter cartridge 100, a cartridge seat 300, an outer filter cartridge 200, a plurality of guides 400 and a connecting seat; the top and bottom ends of the inner filter cartridge 100 are both set as open structures for storing the pulp to be filtered; the cartridge seat 300 is detachably mounted on the bottom end of the inner filter cartridge 100, and is used to push the pulp upward during rotation; the outer filter cartridge 200 is attached to the surface of the inner filter cartridge 100, and the outer filter cartridge 200 and the inner filter cartridge 100 are connected. 0 can rotate relative to each other, so as to cut the residue between the inner filter cartridge 100 and the outer filter cartridge 200; a plurality of guide members 400 are arranged in a ring array on the outside of the outer filter cartridge 200, for guiding the liquid passing through the inner filter cartridge 100 and the outer filter cartridge 200 so that it finally falls into a predetermined storage position; the adapter seat 500 is installed at the top end of the inner filter cartridge 100, for transmission connection between the inner filter cartridge 100 and the driving end of the driving device, so that the driving device drives the inner filter cartridge 100 to rotate.

[0036] The auxiliary pulp filtering device for toilet paper production mentioned above is installed on the driving end of the driving device when in use. After the two are fixedly connected, the top end of the inner filter cartridge 100 is plugged and fixed to the bottom end of the adapter 500. The detachable installation method facilitates the removal and handling of the filtering device. Then, the inner filter cartridge 100 or the outer filter cartridge 200 is rotated and adjusted so that the filter holes of the two filter cartridges are aligned and there is no partial overlap, which affects the filtering effect. Then, the cartridge seat 300 is installed at the bottom end of the inner filter cartridge 100, and the guide 400 is installed on the outside of the inner filter cartridge 100. At this time, the driving device can be started to drive the inner filter cartridge 100 to rotate. The pulp in the inner filter cartridge 100 will be continuously pushed upward under the rotation of the cartridge seat 300. Under the action of the centrifugal rotation of the inner filter cartridge 100, the fibers are thrown out from the filter holes on the two filter cartridges and directly contact the inner surface of the guide 400. Under the guidance of the guide 400, they fall to the predetermined storage position. When there is fiber blockage in the filter hole, the inner filter cartridge 100 and the outer filter cartridge 200 are driven to rotate relative to each other, so that the fibers blocked between the filter holes of the two are cut off. At this time, the cut fibers can be flushed out during centrifugal filtration. A filter screen can be placed for the predetermined storage position. The solid and liquid separation of the pulp centrifuged by the filter device is more obvious. With the help of the storage position with the filter screen, effective filtration of the pulp can be achieved, and there is no need to manually clean them one by one during cleaning. The cleaning efficiency is higher and no waste of time and paper is caused.

[0037] like Figure 4 As shown, in one embodiment, the inner filter cartridge 100 includes a first annular shell 110, a first annular tube 120 and a second annular tube 130; the surface of the first annular shell 110 protrudes away from its own central axis, and a first filter hole 111 is opened on the surface of the first annular shell 110. The first annular tube 120 and the second annular tube 130 are respectively located above and below the first annular shell 110, and the central axes of the three coincide and are connected to each other, and the connection is smoothly arranged.

[0038] Specifically, the first annular shell 110, the first annular tube 120 and the second annular tube 130 can be regarded as a whole, and the three are formed in one piece. Both ends of the inner filter cartridge 100 are arranged in a tubular structure, and the middle part is convex to form the surface of a sphere. The upper and lower ends of the sphere are replaced by the tubular structure. At the same time, the connection between the sphere and the tubular structure is bent into a curved surface to facilitate the flow of pulp along the surface of the inner filter cartridge 100.

[0039] like Figure 5As shown, in one embodiment, the cartridge seat 300 includes a hemispherical shell 310, a fixing ring 320 and a guide block 330; the fixing ring 320 is connected to the planar end of the hemispherical shell 310, the inner surface of the fixing ring 320 is threadedly connected to the outer surface of the second annular tube 130, and a plurality of guide blocks 330 are arranged in an annular array at the inner bottom end of the hemispherical shell 310, one end of the plurality of guide blocks 330 is connected to each other, and the other end is arranged on the inner surface of the hemispherical shell 310 along the radial direction of the hemispherical shell 310.

[0040] Specifically, the inner surface of the fixing ring 320 and the outer surface of the second annular tube 130 are provided with matching threads. When the fixing ring 320 is installed on the second annular tube 130, the planar end of the hemispherical shell 310 is exactly in the same plane as the bottom end of the second annular tube 130.

[0041] In one embodiment, a plurality of guide grooves 131 are opened at the bottom end of the second annular tube 130 , one side of the guide groove 131 passes through the inner surface of the second annular tube 130 , and the plurality of guide grooves 131 are arranged in an annular array around the central axis of the second annular tube 130 .

[0042] Specifically, when the cartridge seat 300 is driven to rotate by the inner filter cartridge 100, the pulp therein will be driven under the centrifugal action, and at the same time the limit block 520 will guide the pulp to make the pulp surge upward. During the surge, the pulp will collide with the guide groove 131 and the bottom end of the second annular tube 130 respectively, and will be guided to the inner filter cartridge 100 and splashed into the cartridge seat 300 respectively to ensure the uniformity of the pulp.

[0043] In one embodiment, a limiting ring 340 is provided at the connection between the fixing ring 320 and the hemispherical shell 310. The upper surface of the limiting ring 340 is attached to the bottom end of the second annular tube 130. The lower surface of the limiting ring 340 is provided with an inclined surface at the connection with the inner ring.

[0044] Specifically, the limiting ring 340 can seal the connection between the fixing ring 320 and the second annular tube 130 and guide the pulp flowing downstream.

[0045] In one embodiment, a seepage hole 311 is provided at the inner bottom end of the hemispherical shell 310. The seepage hole 311 is located at the angle between two adjacent guide blocks 330. The side of the guide block 330 is inclined toward the center line of the guide block 330. The connection between the two adjacent guide blocks 330 is smoothly arranged, and the inner surface of the seepage hole 311 and the side of the guide block 330 are located on the same curved surface.

[0046] Specifically, the seepage hole 311 is used to release the residual pulp liquid to avoid it from accumulating in the cylinder seat 300. At the same time, by cutting the side of the guide block 330 at an angle and smoothly setting the connection between adjacent guide blocks 330 to a curved surface, the guide block 330 has a better guiding and pushing effect on the pulp, and the inner surface of the seepage hole 311 and the side of the guide block 330 are located on the same curved surface, so that the pulp flows more smoothly.

[0047] like Figure 7 As shown, in one embodiment, the outer filter cartridge 200 includes a second annular shell 210 and a third annular tube 220; the two third annular tubes 220 are respectively arranged at the upper and lower ends of the second annular shell 210, and the central axes of the three coincide, the inner surface of the second annular shell 210 is attached to the outer surface of the first annular shell 110, and the second annular shell 210 is provided with a second filter hole 211 facing the first filter hole 111, and the third annular tube 220 is attached to one end of the first annular tube 120 or the second annular tube 130 connected to the first annular shell 110.

[0048] Specifically, a plurality of first connecting rods 230 are provided on the outer surface of the third annular tube 220, and the plurality of first connecting rods 230 are distributed in an annular array. The end of the first connecting rod 230 away from the third annular tube 220 is connected to the first annular rod 240, and the guide member 400 includes an arc guide plate 410 and an arc clamping plate 420; the two arc clamping plates 420 are respectively arranged at the upper and lower ends of the arc guide plate 410, and the arc clamping plate 420 is clamped on the first annular rod 240, and the arc guide plate 410 protrudes in the direction away from the second annular shell 210.

[0049] like Figure 8 As shown, in one embodiment, the arc guide plate 410 includes a bending portion 411 and a connecting portion 412; the upper and lower ends of the bending portion 411 are respectively connected to the arc clamping plate 420 through two connecting portions 412, the width of the bending portion 411 is greater than the width of the connecting portion 412, and the protruding distance of the bending portion 411 is greater than the protruding distance of the connecting portion 412, and the connection between the bending portion 411 and the connecting portion 412 has a smooth transition.

[0050] Specifically, the width of the curved portion 411 is wider than that of the connecting portion 412, and preferably fits closely to the side ends of two adjacent curved portions 411. The sufficient width can effectively intercept the thrown pulp. At the same time, the degree of curvature of the curved portion 411 is also greater than that of the connecting portion 412, so that the pulp entering the curved portion 411 will only exist in the curved portion 411 when it collides and splashes, and will eventually only fall to the predetermined storage position along with the curved portion 411.

[0051] In one embodiment, the arc-shaped clamping plate 420 is elastic, and an opening is provided on the side of the arc-shaped clamping plate 420 that is inclined toward the side away from the center of the second annular shell 210 to constitute a buckle interface of the arc-shaped clamping plate 420 for buckling onto the second connecting rod 530 .

[0052] like Figure 6 As shown, in one embodiment, the adapter 500 includes an annular shell 510 and a limit block 520; a plurality of limit blocks 520 are arranged in an annular array on the upper surface of the annular shell 510 for being plugged into the driving end of the driving device, and a mounting cavity 511 is provided on the lower surface of the annular shell 510, and a plurality of first insertion openings 512 are provided on the inner surface of the annular shell 510, and the first insertion openings 512 are communicated with the mounting cavity 511. A plurality of second insertion openings 513 are also provided on the inner surface of the annular shell 510, and each second insertion opening 513 is respectively located between two adjacent first insertion openings 512, and the second insertion openings 513 are communicated with the mounting cavity 511.

[0053] The specific connection method between the driving end of the driving device and the limit block 520 is not specifically limited in this embodiment, and any structure and method that can drive the adapter group can be adopted.

[0054] Furthermore, a plurality of mounting holes 121 are provided on the first annular tube 120 , and the plurality of mounting holes 121 are distributed in an annular array, and a second connecting rod 530 is inserted into each mounting hole 121 , and the two ends of the plurality of second connecting rods 530 are respectively connected to two second annular rods 540 of different sizes.

[0055] Among them, the second connecting rod 530 is also inserted into the first insertion port 512, a second annular rod 540 is located in the installation cavity 511, and the other second annular rod 540 is located within the inner circle of the first annular tube 120. The second insertion port 513 is used to insert or install fasteners, thereby limiting and fixing the second annular rod 540 located in the installation cavity 511.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An auxiliary pulp filtering device for toilet paper production, characterized in that: include: The inner filter cartridge has an open structure at both the top and bottom ends and is used to store the pulp to be filtered; a cartridge seat, detachably mounted on the bottom end of the inner filter cartridge, for pushing the pulp upward during rotation; An outer filter cartridge is fitted on the surface of the inner filter cartridge, and the outer filter cartridge and the inner filter cartridge can rotate relative to each other, thereby cutting the residue between the inner filter cartridge and the outer filter cartridge; A plurality of guide members are arranged in an annular array on the outside of the outer filter cartridge, and are used to guide the liquid passing through the inner filter cartridge and the outer filter cartridge so that the liquid finally falls into a predetermined storage position; The adapter is installed at the top end of the inner filter cartridge and is used to transmit the inner filter cartridge to the driving end of the driving device, so that the driving device drives the inner filter cartridge to rotate.

2. The auxiliary pulp filtering device for toilet paper production according to claim 1, characterized in that: The inner filter cartridge includes a first annular shell, a first annular tube and a second annular tube; the surface of the first annular shell protrudes away from its own central axis, and a first filter hole is opened on the surface of the first annular shell; the first annular tube and the second annular tube are respectively located above and below the first annular shell, and the central axes of the three coincide and are connected to each other, and the connection is smoothly arranged.

3. The auxiliary pulp filtering device for toilet paper production according to claim 2, characterized in that: The cylinder seat includes a hemispherical shell, a fixing ring and a guide block; the fixing ring is connected to the planar end of the hemispherical shell, the inner surface of the fixing ring is threadedly connected to the outer surface of the second annular tube, and multiple guide blocks are arranged in a ring array at the inner bottom end of the hemispherical shell, one end of the multiple guide blocks is connected to each other, and the other end is arranged on the inner surface of the hemispherical shell along the radial direction of the hemispherical shell.

4. The auxiliary pulp filtering device for toilet paper production according to claim 3, characterized in that: A plurality of guide grooves are provided at the bottom end of the second annular tube, one side of the guide grooves passes through the inner surface of the second annular tube, and the plurality of guide grooves are arranged in an annular array around the central axis of the second annular tube.

5. The auxiliary pulp filtering device for toilet paper production according to claim 4, characterized in that: A limiting ring is provided at the connection between the fixing ring and the hemispherical shell, the upper surface of the limiting ring is fitted on the bottom end of the second annular tube, and an inclined surface is provided at the connection between the lower surface of the limiting ring and the inner ring.

6. The auxiliary pulp filtering device for toilet paper production according to claim 5, characterized in that: A water seepage hole is provided at the inner bottom end of the hemispherical shell, and the water seepage hole is located at the angle between two adjacent guide blocks. The side surface of the guide block is inclined toward the center line position of the guide block. The connection between the two adjacent guide blocks is smoothly arranged, and the inner surface of the water seepage hole and the side surface of the guide block are located on the same curved surface.

7. The auxiliary pulp filtering device for toilet paper production according to claim 6, characterized in that: The outer filter cartridge includes a second annular shell and a third annular tube; the two third annular tubes are respectively arranged at the upper and lower ends of the second annular shell, and the central axes of the three coincide, the inner surface of the second annular shell is attached to the outer surface of the first annular shell, and the second annular shell is provided with a second filter hole facing the first filter hole, and the third annular tube is attached to the first annular tube or the end of the second annular tube connected to the first annular shell.

8. The auxiliary pulp filtering device for toilet paper production according to claim 7, characterized in that: The outer surface of the third annular tube is provided with a plurality of first connecting rods, and the plurality of first connecting rods are distributed in an annular array. The end of the first connecting rod away from the third annular tube is connected to the first annular rod, and the guide member includes an arc guide plate and an arc clamping plate; the two arc clamping plates are respectively provided at the upper and lower ends of the arc guide plate, and the arc clamping plate is clamped on the first annular rod, and the arc guide plate protrudes in the direction away from the second annular shell.

9. The auxiliary pulp filtering device for toilet paper production according to claim 8, characterized in that: The arc guide plate includes a curved portion and a connecting portion; the upper and lower ends of the curved portion are respectively connected to the arc clamping plate through two connecting portions, the width of the curved portion is greater than the width of the connecting portion, and the protruding distance of the curved portion is greater than the protruding distance of the connecting portion, and the connection between the curved portion and the connecting portion has a smooth transition.

10. The auxiliary pulp filtering device for toilet paper production according to claim 9, characterized in that: The arc-shaped clamping plate is elastic, and an opening is provided on a side of the arc-shaped clamping plate that is inclined toward a side away from the center of the second annular shell, constituting a buckle interface of the arc-shaped clamping plate for buckling onto the second connecting rod.

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