A medium consistency pulping device with a filter anti-blocking mechanism

Abstract

The utility model discloses a kind of medium concentration pulp grinding device with filtering anti-blocking mechanism, belong to the field of pulp grinding device, the lower end of top sealing cover is connected with waterproof cover by inner fixed shell, driving motor is installed in the cover of waterproof cover, the lower end of driving motor is connected with pulp grinding cutter by connecting shaft, realize medium concentration pulp grinding operation;The lower end of waterproof cover is connected with filter screen cover by connecting seat, filter screen cover covers pulp grinding cutter, realize the filtration of pulp grinding liquid, the side wall of filter screen cover is provided with multiple strip filter holes. Filter screen cover covers pulp grinding cutter, the strip filter hole of its side wall filters pulp grinding liquid, intercepts impurity, improves slurry purity. Bending type blocking strip is located in filter hole, adjust its position can change hole size, adapt to different filtering needs, enhance equipment versatility and filtering effect. Blocking arc-shaped strip and hole form small hole, refine filtering process, prevent tiny particle blockage, and prevent blocking strip deformation caused by blockage.

Description

Technical Field

[0001] This utility model relates to the field of pulping equipment, and in particular to a medium-consistency pulping equipment with a filter anti-clogging mechanism. Background Technology

[0002] Medium-consistency pulping equipment is a highly efficient pulping device widely used in the paper industry for the fine processing of pulp fibers. This device processes pulp fibers through two relatively moving mechanical elements (such as the two grinding discs of a disc mill). As the fibers pass through the tiny gaps between the grinding discs, they are subjected to the direct action of the teeth on the surface of the mechanical elements and the internal friction between the fibers. These actions occur simultaneously, leading to fiber bundle decomposition, pulp agglomeration, and the cross-sectional fracture, longitudinal tearing, and fibrillation of individual fibers, ultimately achieving fine fiberization.

[0003] In practical applications, the filter screens of medium-consistency pulping units are prone to clogging, mainly due to the deposition and accumulation of pulp or other materials during the filtration process. Since the materials processed by medium-consistency pulping units typically have a high solids content, these solid particles easily deposit on the filter screen as they pass through, causing blockage. Once clogging occurs, the filtration efficiency of the equipment will significantly decrease, leading to reduced processing capacity and increased energy consumption.

[0004] Furthermore, clogged filter screens can negatively impact filtration efficiency. Particles deposited on the filter screen can hinder the smooth flow of the filtrate, resulting in the filtered liquid still containing a significant amount of solid particles or impurities. This not only reduces product quality but may also adversely affect subsequent production processes. Utility Model Content

[0005] The main objective of this invention is to provide a medium-consistency pulping device with a filter anti-clogging mechanism, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A medium-consistency pulping device with a filter anti-clogging mechanism includes a pulping machine housing, a lifting component, a top sealing cover, and a pulp outlet. The lifting component is installed on the side wall of the pulping machine housing, the top sealing cover is connected to the top opening of the pulping machine housing, and the pulp outlet is located on the opening of the pulping machine housing and has a duckbill design.

[0008] The lower end of the top sealing cover is connected to a waterproof cover through an inner fixed shell, and a drive motor is installed inside the waterproof cover. The lower end of the drive motor is connected to a grinding blade through a connecting shaft to realize medium-consistency grinding operation.

[0009] The lower end of the waterproof cover is connected to a filter screen via a connecting seat, and the filter screen covers the grinding blade to filter the grinding liquid. The side wall of the filter screen has multiple strip-shaped filter holes, and each filter hole is equipped with a bent blocking strip. The size of the filter hole can be adjusted by the bent blocking strip, and the filter hole can be prevented from being blocked by moving the bent blocking strip.

[0010] In an optional embodiment of this utility model, the inner fixing shell and the waterproof cover are designed as an integral unit, and the waterproof cover and the inner fixing shell are designed in a funnel shape. The inner fixing shell is fixed to the top sealing cover by bolts, and a sealing ring is provided at the connection between the inner fixing shell and the top sealing cover.

[0011] In an optional embodiment of this utility model, the drive motor is fixed inside the waterproof cover by bolts, and the connection between the drive motor and the waterproof cover is mechanically sealed. The connecting seat is fixed on the waterproof cover by bolts, and the output end of the drive motor passes through the opening of the connecting seat, and the connection between the output end of the drive motor and the connecting seat is mechanically sealed.

[0012] In an optional embodiment of this utility model, the filter screen and the connecting seat are fixed by threads and fasteners. The cross-section of the filter screen is designed as a frustum, and multiple filter holes are distributed in a ring on the filter screen, with the edges of the filter holes being arc-shaped.

[0013] In an optional embodiment of this utility model, the bent blocking strip is made of a bendable metal sheet, the upper end of the bent blocking strip is fixed to the filter screen cover by bolts, and the lower end of the bent blocking strip has a gap with the filter screen cover.

[0014] An optional embodiment of this utility model is that the filter hole is provided with a blocking arc strip inside the hole. The blocking arc strip and the filter hole form a small hole and prevent the bent blocking strip from moving inward.

[0015] In an optional embodiment of this utility model, a through hole is provided at the bottom of the bent blocking strip, the through hole is directly opposite the blocking arc strip, and the blocking arc strip and the bent blocking strip are fixed by inserting a bolt into the through hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The filter screen covers the grinding blades, and the grinding liquid is filtered through multiple strip-shaped filter holes on its side wall, effectively intercepting impurities in the slurry and improving the purity of the slurry.

[0018] Bending baffles are installed inside each filter hole. By adjusting the position of the bending baffles, the opening size of the filter holes can be flexibly adjusted to adapt to the filtration needs of different materials and grinding stages. This design not only improves the versatility of the equipment but also enhances the filtration effect.

[0019] The curved blocking strips and filter holes form small pores, further refining the filtration process and effectively preventing fine particles in the slurry from clogging the filter holes. At the same time, the curved blocking strips also prevent the bent blocking strips from moving inwards, avoiding clogging of the filter holes caused by deformation of the bent blocking strips.

[0020] The through-hole design allows the curved blocking strips and the bent blocking strips to be stably fixed with bolts, ensuring the stability and durability of the curved blocking strips during the filtration process. This fixing method is not only simple and easy to implement, but also greatly improves the reliability and durability of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 The diagram shows the top sealing cap, inner fixing shell, waterproof cover, filter screen cover, and grinding blade of this utility model.

[0023] Figure 3 The diagram shows the drive motor, filter screen, and grinding blade of this utility model.

[0024] Figure 4 This is a schematic diagram of the drive motor, filter screen, and grinding blade of this utility model;

[0025] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Pulping machine housing; 2. Lifting components; 3. Top sealing cover; 4. Pulping outlet; 5. Inner fixed shell; 6. Waterproof cover; 7. Drive motor; 8. Connecting seat; 9. Connecting shaft; 10. Filter screen cover; 11. Filter holes; 12. Bending blocking strip; 13. Through hole; 14. Blocking arc strip; 15. Pulping cutter. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 - Figure 5As shown, a medium-consistency pulping device with a filtration and anti-clogging mechanism mainly consists of a pulping machine housing 1, a lifting device 2, a top sealing cover 3, and a pulp outlet 4. The lifting device 2 is installed on the side wall of the pulping machine housing 1 for easy operation. The top sealing cover 3 is connected to the top opening of the pulping machine housing 1 to prevent pulp overflow during the pulping process. The pulp outlet 4 is located on the opening of the pulping machine housing 1 and has a duckbill design to facilitate smooth pulp flow.

[0029] The lower end of the top sealing cover 3 is connected to a waterproof cover 6 via an inner fixed shell 5. A drive motor 7 is installed inside the waterproof cover 6, and the lower end of the drive motor 7 is connected to a grinding blade 15 via a connecting shaft 9, enabling medium-consistency grinding operation. The lower end of the waterproof cover 6 is connected to a filter screen cover 10 via a connecting seat 8. The filter screen cover 10 covers the grinding blade 15, achieving filtration of the grinding liquid. The side wall of the filter screen cover 10 has multiple strip-shaped filter holes 11. Each filter hole 11 is equipped with a bent blocking strip 12. The size of the filter hole 11 can be adjusted by using the bent blocking strip 12, and the filter hole 11 can be prevented from clogging by moving the bent blocking strip 12.

[0030] The inner fixed shell 5 and the waterproof cover 6 are integrated into one unit, forming a funnel shape. The inner fixed shell 5 is bolted to the top sealing cover 3, and a sealing ring is provided at the connection between the inner fixed shell 5 and the top sealing cover 3 to ensure the sealing performance of the device. The drive motor 7 is bolted inside the waterproof cover 6, and a mechanical seal is formed at the connection between the drive motor 7 and the waterproof cover 6. The connecting seat 8 is bolted to the waterproof cover 6, and the output end of the drive motor 7 passes through the opening in the connecting seat 8. A mechanical seal is formed at the connection between the output end of the drive motor 7 and the connecting seat 8 to ensure the stable operation of the drive motor 7.

[0031] The filter screen cover 10 and the connecting seat 8 are fixed together by threads and fasteners. The filter screen cover 10 has a frustum-shaped cross-section, and multiple filter holes 11 are distributed in a ring on the filter screen cover 10. The edges of the filter holes 11 are arc-shaped, which improves the filtration effect. The bent blocking strip 12 is made of bendable metal sheet. The upper end of the bent blocking strip 12 is fixed to the filter screen cover 10 by bolts, and the lower end of the bent blocking strip 12 has a gap with the filter screen cover 10 to facilitate adjustment of the opening size of the filter holes 11.

[0032] Multiple blocking arc-shaped strips 14 are provided inside the filter holes 11. These blocking arc-shaped strips 14 form small holes with the filter holes 11 and prevent the bent blocking strips 12 from moving inward, thus preventing clogging of the filter holes 11. A through hole 13 is provided at the bottom of the bent blocking strip 12. The through hole 13 is directly opposite the blocking arc-shaped strip 14, and the blocking arc-shaped strip 14 is fixed to the bent blocking strip 12 by inserting bolts into the through hole 13, ensuring the stability of the blocking arc-shaped strip 14 and the filtration effect.

[0033] Place the material to be ground into the grinding mill housing 1. Ensure that the lifting device 2 is installed on the side wall of the grinding mill housing 1 for easy operation. Connect the top sealing cover 3 to the top opening of the grinding mill housing 1, ensuring a tight seal. Secure the inner fixed shell 5 to the top sealing cover 3 with bolts, ensuring a sealing ring at the connection. Secure the drive motor 7 inside the waterproof cover 6 with bolts, ensuring a mechanical seal. Pass the output end of the drive motor 7 through the opening of the connecting seat 8, and mechanically seal the connection with the connecting seat 8.

[0034] The filter screen 10 is secured to the connecting seat 8 using threads and fasteners. Ensure the filter screen 10 has a frustum-shaped cross-section, with multiple filter holes 11 arranged in a ring. Adjust the opening size of the filter holes 11 by moving the bent baffle strip 12 to accommodate different material filtration needs. Ensure the upper end of the bent baffle strip 12 is bolted to the filter screen 10, while the lower end has a gap with the filter screen 10 for easy adjustment. Install the blocking arc-shaped strip 14 inside the filter holes 11, ensuring it forms small openings with the filter holes 11. Secure the blocking arc-shaped strip 14 to the bent baffle strip 12 by inserting bolts into the bottom through-hole 13.

[0035] Start the drive motor 7 to begin the pulping operation. The pulping blades 15 are connected to the drive motor 7 via the connecting shaft 9 to achieve medium-consistency pulping. The material is ground by the pulping blades 15 inside the pulper housing 1, and the pulp is filtered through the filter screen 10. The bent baffle bar 12 and the baffle arc bar 14 work together to prevent the filter holes 11 from clogging, ensuring the filtration effect.

[0036] The slurry flows smoothly out through the slurry outlet 4, which has a duckbill design for easy operation. Collect or further process the slurry as needed. After completing the grinding operation, turn off the drive motor 7. Clean the filter screen 10 and the bent baffle bar 12 to ensure proper operation of the equipment for the next use.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A medium-consistency pulping device with a filter anti-clogging mechanism, comprising a pulping machine housing (1), a lifting component (2), a top sealing cover (3), and a pulp outlet (4), wherein the lifting component (2) is installed on the side wall of the pulping machine housing (1), the top sealing cover (3) is connected to the top opening of the pulping machine housing (1), and the pulp outlet (4) is located on the opening of the pulping machine housing (1) and is designed as a duckbill, characterized in that: The lower end of the top sealing cover (3) is connected to a waterproof cover (6) through an inner fixed shell (5), and a drive motor (7) is installed inside the waterproof cover (6). The lower end of the drive motor (7) is connected to a grinding tool (15) through a connecting shaft (9) to realize medium-concentration grinding operation. The lower end of the waterproof cover (6) is connected to a filter screen cover (10) via a connecting seat (8), and the filter screen cover (10) covers the grinding blade (15) to achieve the filtration of the grinding liquid. The side wall of the filter screen cover (10) is provided with multiple strip-shaped filter holes (11), and each filter hole (11) is equipped with a bent blocking strip (12). The size of the opening of the filter hole (11) can be adjusted by the bent blocking strip (12), and the filter hole (11) can be prevented from being blocked by moving the bent blocking strip (12).

2. The medium-consistency pulping apparatus with a filter anti-clogging mechanism according to claim 1, characterized in that: The inner fixing shell (5) and the waterproof cover (6) are designed as a single unit, and the waterproof cover (6) and the inner fixing shell (5) are designed in a funnel shape. The inner fixing shell (5) is fixed to the top sealing cover (3) by bolts, and a sealing ring is provided at the connection between the inner fixing shell (5) and the top sealing cover (3).

3. A medium-consistency pulping apparatus with a filter anti-clogging mechanism according to claim 2, characterized in that: The drive motor (7) is fixed inside the waterproof cover (6) by bolts, and the connection between the drive motor (7) and the waterproof cover (6) is mechanically sealed. The connecting seat (8) is fixed on the waterproof cover (6) by bolts, and the output end of the drive motor (7) passes through the opening of the connecting seat (8), and the connection between the output end of the drive motor (7) and the connecting seat (8) is mechanically sealed.

4. A medium-consistency pulping apparatus with a filter anti-clogging mechanism according to claim 3, characterized in that: The filter screen (10) and the connecting seat (8) are fixed by threads and fasteners. The cross-section of the filter screen (10) is a frustum-shaped design. Multiple filter holes (11) are distributed in a ring on the filter screen (10), and the edges of the filter holes (11) are arc-shaped.

5. A medium-consistency pulping apparatus with a filter anti-clogging mechanism according to claim 4, characterized in that: The bent barrier strip (12) is made of a bendable metal sheet. The upper end of the bent barrier strip (12) is fixed to the filter screen (10) by bolts, and the lower end of the bent barrier strip (12) has a gap with the filter screen (10).

6. A medium-consistency pulping apparatus with a filter anti-clogging mechanism according to any one of claims 1 to 5, characterized in that: The filter hole (11) is provided with a blocking arc strip (14) inside the hole. The blocking arc strip (14) forms a small hole with the filter hole (11) and blocks the bending blocking strip (12) from moving inward.

7. A medium-consistency pulping apparatus with a filter anti-clogging mechanism according to claim 6, characterized in that: The bottom of the bent blocking strip (12) has a through hole (13), which is directly opposite the blocking arc strip (14). The blocking arc strip (14) and the bent blocking strip (12) are fixed by inserting a bolt into the through hole (13).

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