A paper machine vacuum suction box

Abstract

The utility model relates to paper machine technical field discloses a paper machine vacuum water suction tank, including water suction tank body, one side fixedly connected with the pipe of water suction tank body, the outer wall fixedly connected with filter bowl of one end of pipe extension water suction tank body, install filter core in filter bowl, the side of filter bowl away from pipe abuts with end cap, the inner wall fixedly connected with the conveying pipe of end cap, when replacing, push the shift lever and make the shift lever drive the clamping block to move, and then make two clamping blocks close to each other, and the clamping block is separated from the clamping groove, can pull out the end cap, then the filter core is replaced, when installing, push the filter core and make it enter filter bowl, and make the locating post enter the locating groove, then push the end cap and make the end cap and filter bowl abut, and the end cap carries out the location to the filter core, at this moment, the effect of spring makes the clamping block enter the clamping groove on the limiting block, and the fixed block is positioned, and then the end cap is fixed, and it is convenient to install and dismount, and it is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of papermaking machine technology, and more specifically, to a vacuum water suction box for a papermaking machine. Background Technology

[0002] In the papermaking process, the vacuum suction box is a key piece of equipment for dewatering wet paper sheets. It uses a vacuum pump to create negative pressure, which draws water and some pulp from the wet paper sheets into the box and then discharges them through the discharge structure. This effectively improves the dryness of the wet paper sheets and lays the foundation for subsequent pressing, drying and other processes.

[0003] This application improves upon existing technologies, which have several problems in actual operation: Firstly, during the vacuuming process, the air inside the suction tank often contains water vapor, pulp fibers, and other fine impurities. These substances, when directly introduced into the vacuum pump, can easily cause wear, corrosion, or blockage of the pump's internal components, shortening its lifespan, increasing equipment maintenance costs, and potentially causing production interruptions due to pump failure, thus affecting papermaking efficiency. Secondly, to address these issues, some equipment adds a filter device between the suction tank and the vacuum pump. However, the existing filter devices have insufficient precision in filter element installation and positioning, and the connection structure between the end cap and the filter cartridge is complex, making filter element replacement cumbersome and requiring significant downtime, further reducing production continuity. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a vacuum water suction box for a papermaking machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum suction box for a papermaking machine, comprising a suction box body, a conduit fixedly connected to one side of the suction box body, a filter cylinder fixedly connected to the outer wall of one end of the conduit extending out of the suction box body, a filter element installed inside the filter cylinder, an end cap abutting against the side of the filter cylinder away from the conduit, and the end cap abutting against the filter element, a conveying pipe fixedly connected to the inner wall of the end cap, symmetrically distributed fixing blocks fixedly connected to both sides of the end cap, symmetrically distributed limiting blocks fixedly connected to both outer walls of the filter cylinder, with the fixing blocks located between the two limiting blocks, symmetrically distributed locking blocks slidably connected to both sides of the fixing blocks, and locking grooves provided on the sides of the two limiting blocks that are close to each other, with the locking grooves matching the locking blocks.

[0006] As a preferred technical solution of this utility model, the inner wall of the filter cylinder is fixedly connected with a plurality of equidistantly distributed positioning posts, and the plurality of positioning posts are circumferentially distributed. The filter element is provided with a plurality of equidistantly distributed positioning grooves, and the positioning grooves are adapted to the positioning posts.

[0007] In a preferred embodiment of this invention, symmetrically distributed mounting grooves are provided on both sides of the fixing block, and the inner wall of the mounting groove is slidably connected to the locking block. The mounting grooves facilitate the movement of the locking block.

[0008] As a preferred embodiment of this utility model, a sliding groove is provided on the side of each of the two locking blocks that are close to each other. A guide rod is slidably connected to the inner wall of the sliding groove, and the guide rod is fixedly connected to the inner wall of the mounting groove. A spring is sleeved on the outside of the guide rod. One end of the spring is fixedly connected to the locking block, and the other end of the spring is fixedly connected to the inner wall of the mounting groove.

[0009] As a preferred embodiment of this utility model, the top of the fixing block is provided with symmetrically distributed guide grooves, and the guide grooves are connected to the mounting grooves. A lever is slidably connected to the inner wall of the guide groove, and the lever is fixedly connected to the locking block.

[0010] As a preferred embodiment of this utility model, a water-absorbing plate is fixedly connected to the top of the water-absorbing box body, and a discharge pipe is fixedly connected to the bottom of the water-absorbing box body, and the discharge pipe is connected to the interior of the water-absorbing box body.

[0011] As a preferred technical solution of this utility model, a vacuum pump is provided on the lower side of one side of the water absorption tank body, and the air inlet of the vacuum pump is fixedly connected to the delivery pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, during replacement, pushing the lever causes the lever to move the locking blocks, which in turn bring the two locking blocks closer together. The locking blocks disengage from the locking slots, allowing the end cap to be pulled out for filter element replacement. During installation, pushing the filter element into the filter cartridge causes the positioning pin to enter the positioning groove. Then, pushing the end cap causes it to abut against the filter cartridge, limiting the filter element. At this time, the spring causes the locking blocks to enter the locking slots on the limiting blocks, limiting the fixing blocks and thus fixing the end cap. This facilitates installation, disassembly, and replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the water absorption tank body of this utility model;

[0016] Figure 3 This is a schematic diagram of the filter element installation of this utility model;

[0017] Figure 4 This is a schematic diagram of the end cap installation of this utility model;

[0018] Figure 5In this utility model Figure 3 Enlarged view of point A;

[0019] Figure 6 In this utility model Figure 4 Enlarged view of point B.

[0020] In the diagram: 1. Water suction box body; 2. Water suction plate; 3. Discharge pipe; 4. Guide pipe; 5. Filter cylinder; 6. Conveying pipe; 7. Vacuum pump; 8. Filter element; 9. Positioning column; 10. Positioning groove; 11. Fixing block; 12. Limiting block; 13. End cap; 14. Guide groove; 15. Toggle rod; 16. Slot; 17. Slot; 18. Guide rod; 19. Spring; 20. Mounting groove; 21. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6 As shown, this utility model provides a vacuum suction box for a papermaking machine, including a suction box body 1. A conduit 4 is fixedly connected to one side of the suction box body 1. A filter cylinder 5 is fixedly connected to the outer wall of one end of the conduit 4 extending out of the suction box body 1. A filter element 8 is installed inside the filter cylinder 5. An end cap 13 abuts against the side of the filter cylinder 5 away from the conduit 4, and the end cap 13 abuts against the filter element 8. The inner side wall of the end cap 13 is fitted with the outer peripheral surface of the end of the filter element 8. The filter element 8 is axially and radially limited by the end face abutment and circumferential fitting. A conveying pipe 6 is fixedly connected to the inner wall of the end cap 13. The axis of the conveying pipe 6 is coaxial with the axis of the end cap 13. The end cap 13 is fixedly connected to two symmetrically distributed fixing blocks 11. The outer walls of both sides of the filter cartridge 5 are fixedly connected to symmetrically distributed limiting blocks 12, and the fixing blocks 11 are located between the two limiting blocks 12. The two sides of the fixing blocks 11 are slidably connected to symmetrically distributed locking blocks 17. The two limiting blocks 12 are provided with locking grooves 16 on the side that is close to each other, and the locking grooves 16 are adapted to the locking blocks 17. The locking blocks 17 slide into the locking grooves 16 and engage with the limiting blocks 12 to limit the fixing blocks 11, thereby fixing the end cap 13, which facilitates the installation and removal of the end cap 13, and facilitates the replacement of the filter element 8.

[0023] The filter element 8 is made of water-resistant non-woven fabric and has a cylindrical structure. Its outer wall is attached to the inner wall of the filter cartridge 5. It has multiple layers of filter cotton inside and a filtration accuracy of 5-10μm. It is used to intercept pulp fibers and water vapor in the air.

[0024] The filter cartridge 5 has multiple equidistantly distributed positioning posts 9 fixedly connected to its inner wall, and the multiple positioning posts 9 are circumferentially distributed. The filter element 8 has multiple equidistantly distributed positioning grooves 10, and the positioning grooves 10 are adapted to the positioning posts 9. The positioning posts 9 and positioning grooves 10 facilitate the positioning of the filter element 8 during installation.

[0025] The positioning post 9 is 2-3cm long and 0.5-1cm in diameter. The depth of the positioning groove 10 is the same as the length of the positioning post 9 to ensure that the filter element 8 does not wobble radially after installation.

[0026] The fixing block 11 has symmetrically distributed mounting grooves 21 on both sides. The inner wall of the mounting groove 21 is slidably connected to the locking block 17, and the mounting groove 21 facilitates the movement of the locking block 17.

[0027] Each of the two locking blocks 17 has a sliding groove 18 on one side that is close to each other. A guide rod 19 is slidably connected to the inner wall of the sliding groove 18, and the guide rod 19 is fixedly connected to the inner wall of the mounting groove 21. A spring 20 is sleeved on the outside of the guide rod 19. One end of the spring 20 is fixedly connected to the locking block 17, and the other end of the spring 20 is fixedly connected to the inner wall of the mounting groove 21. The spring 20 facilitates the locking block 17 to move and then reset, so that the locking block 17 enters the locking groove 16. The movement of the locking block 17 is guided by the guide rod 19 and the sliding groove 18.

[0028] Spring 20 is a compression spring with an elastic coefficient of 5-10 N / cm, a free length of 3-4 cm, and a maximum compression of 1-1.5 cm, ensuring that the locking block 17 can be stably locked into the locking slot 16 and that the lever 15 is easy to operate.

[0029] The top of the fixing block 11 is provided with symmetrically distributed guide grooves 14, and the guide grooves 14 are connected to the mounting groove 21. The inner wall of the guide groove 14 is slidably connected with a lever 15, which is fixedly connected to the locking block 17. The lever 15 can be pulled to move the locking block 17 and thus disassemble the end cover 13.

[0030] The top of the water-absorbing box body 1 is fixedly connected to a water-absorbing plate 2, which is a multi-groove metal plate. The bottom of the water-absorbing box body 1 is fixedly connected to a discharge pipe 3, which is connected to the inside of the water-absorbing box body 1. Water and pulp are discharged through the discharge pipe 3.

[0031] The discharge pipe 3 has a diameter of 10-15cm and is inclined at a 5-10° angle (towards the discharge direction) at the connection with the water suction tank body 1. The discharge pipe 3 is equipped with a manual valve (not shown) to facilitate control of the discharge speed and clear blockages.

[0032] The water suction box body 1 is equipped with a vacuum pump 7 on one side below. The air inlet of the vacuum pump 7 is fixedly connected to the delivery pipe 6. The vacuum pump 7 is used to evacuate the water suction box body 1.

[0033] The filter cylinder 5 and the end cap 13 are provided with a rubber sealing ring (not shown), and the connection between the conduit 4 and the filter cylinder 5 and the connection between the delivery pipe 6 and the vacuum pump 7 are provided with sealing gaskets (not shown) to prevent vacuum leakage.

[0034] Working principle and usage process of this utility model:

[0035] In this application, when in use, wet paper is placed on top of the absorbent plate 2, and the vacuum pump 7 is started. The vacuum pump 7 evacuates the absorbent box body 1, so that the water and pulp on the wet paper are sucked into the absorbent box body 1 and finally discharged through the discharge pipe 3 after being guided by the bottom of the absorbent box body 1.

[0036] In this application, during the vacuuming process, the air inside the water suction box 1 enters the filter cartridge 5 through the conduit 4, and enters the delivery pipe 6 after being filtered by the filter element 8, so as to prevent water vapor and impurities from entering the vacuum pump 7 and affecting the vacuum pump 7.

[0037] In this application, during replacement, pushing the lever 15 causes the lever 15 to move the locking block 17, thereby bringing the two locking blocks 17 closer together. The locking blocks 17 disengage from the locking groove 16, allowing the end cover 13 to be pulled out. Then, the filter element 8 is replaced. During installation, the filter element 8 is pushed into the filter cylinder 5, causing the positioning post 9 to enter the positioning groove 10. Then, the end cover 13 is pushed so that it abuts against the filter cylinder 5, limiting the filter element 8. At this time, the spring 20 causes the locking block 17 to enter the locking groove 16 on the limiting block 12, limiting the fixing block 11 and thus fixing the end cover 13, which facilitates installation and disassembly and replacement.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum suction box for a papermaking machine, comprising a suction box body (1), characterized in that: A conduit (4) is fixedly connected to one side of the water suction tank body (1). A filter cylinder (5) is fixedly connected to the outer wall of one end of the conduit (4) extending out of the water suction tank body (1). A filter element (8) is installed inside the filter cylinder (5). An end cap (13) abuts against the side of the filter cylinder (5) away from the conduit (4), and the end cap (13) abuts against the filter element (8). A conveying pipe (6) is fixedly connected to the inner wall of the end cap (13). A symmetrically distributed fixing block (11) is fixedly connected to both sides of the end cap (13). A symmetrically distributed limiting block (12) is fixedly connected to both outer walls of the filter cylinder (5), and the fixing block (11) is located between the two limiting blocks (12). A symmetrically distributed locking block (17) is slidably connected to both sides of the fixing block (11). A locking groove (16) is opened on the side of the two limiting blocks (12) that are close to each other, and the locking groove (16) is compatible with the locking block (17).

2. The vacuum water suction box for a papermaking machine according to claim 1, characterized in that: The inner wall of the filter cylinder (5) is fixedly connected with a plurality of equidistant positioning posts (9), and the plurality of positioning posts (9) are circumferentially distributed. The filter element (8) is provided with a plurality of equidistant positioning grooves (10), and the positioning grooves (10) are adapted to the positioning posts (9).

3. The vacuum water suction box for a papermaking machine according to claim 1, characterized in that: The fixing block (11) has symmetrically distributed mounting grooves (21) on both sides, and the inner wall of the mounting groove (21) is slidably connected to the card block (17).

4. The vacuum water suction box for a papermaking machine according to claim 1, characterized in that: Each of the two locking blocks (17) has a sliding groove (18) on one side that is close to each other. A guide rod (19) is slidably connected to the inner wall of the sliding groove (18), and the guide rod (19) is fixedly connected to the inner wall of the mounting groove (21). A spring (20) is sleeved on the outside of the guide rod (19). One end of the spring (20) is fixedly connected to the locking block (17), and the other end of the spring (20) is fixedly connected to the inner wall of the mounting groove (21).

5. A vacuum water suction box for a papermaking machine according to claim 1, characterized in that: The top of the fixing block (11) is provided with symmetrically distributed guide grooves (14), and the guide grooves (14) are connected to the mounting groove (21). The inner wall of the guide groove (14) is slidably connected with a lever (15), and the lever (15) is fixedly connected to the locking block (17).

6. A vacuum water suction box for a papermaking machine according to claim 1, characterized in that: The top of the water-absorbing box body (1) is fixedly connected to a water-absorbing plate (2), and the bottom of the water-absorbing box body (1) is fixedly connected to a discharge pipe (3), and the discharge pipe (3) is connected to the inside of the water-absorbing box body (1).

7. A vacuum water suction box for a papermaking machine according to claim 1, characterized in that: A vacuum pump (7) is provided on one side of the water absorption tank body (1), and the air inlet of the vacuum pump (7) is fixedly connected to the delivery pipe (6).

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