A fiber separator

Abstract

The utility model belongs to the technical field of fiber separator, especially a fiber separator, including the shell body, the inside rotatory joint of shell body has the rotating shaft, and the outside fixed connection of rotating shaft has a plurality of broken knives, the outside of rotating shaft is equipped with filter screen plate, just the inside fixed connection of filter screen plate in the shell body, a plurality of arc screen holes are seted up on filter screen plate, the inner chamber of filter screen plate's outside and the shell body forms the discharge bunker, can make the component that meets the filtering requirement can more smoothly enter the hole groove along the inclination angle and pass through, reduces the jam, the accumulation of fiber at the orifice, reduces the jam probability, on the other hand can to filter screen plate when bearing material impact, extrusion, makes stress distribution more uniform, reduces the orifice cracking, damage because of local excessive stress, helps to enhance the structural stability of filter screen plate whole.

Description

Technical Field

[0001] This utility model belongs to the technical field of fiber separators, and specifically relates to a fiber separator. Background Technology

[0002] In papermaking operations, pulp separators are commonly used equipment to separate fibers from raw materials. During use, after the material is poured into the separator, it is stirred and crushed by the internal rotating shaft assembly. At the same time, the screen plate inside the equipment filters the pulp, so that the pulp that meets the filtration requirements is filtered and discharged. As the main screening and filtering component inside, the screen plate often gets clogged during long-term use. At the same time, the impact of the material causes severe wear on the wall of the screen plate and deformation of the screen plate. Utility Model Content

[0003] This utility model provides a fiber separator that can reduce fiber jamming and accumulation at the orifice, lower the probability of clogging, and make the stress distribution more uniform when the filter screen plate is subjected to material impact and compression, reducing the cracking and damage of the orifice due to excessive local stress, thus helping to enhance the overall structural stability of the filter screen plate.

[0004] To achieve the above objectives, a fiber separator includes an outer shell, a rotating shaft rotatably connected inside the outer shell, and a plurality of crushing blades fixedly connected to the outside of the rotating shaft. A filter screen plate is provided on the outside of the rotating shaft and is fixedly connected to the inside of the outer shell. A plurality of arc-shaped screen holes are provided on the filter screen plate, and a discharge bin is formed between the outside of the filter screen plate and the inner cavity of the outer shell.

[0005] Preferably, the arc-shaped sieve hole includes a large-diameter trapezoidal groove and a small-diameter trapezoidal groove, and the large-diameter trapezoidal groove and the small-diameter trapezoidal groove are connected. The large-diameter trapezoidal groove is located on the inner side of the filter sieve plate, and the small-diameter trapezoidal groove is located on the outer side of the filter sieve plate.

[0006] Preferably, the interior of the arc-shaped sieve hole is fixedly connected with several reinforcing rods.

[0007] Preferably, a connecting top plate is fixedly connected to the top of the outer shell, and a drive motor is fixedly connected to the top of the connecting top plate, and the output end of the drive motor is fixedly connected to the rotating shaft.

[0008] Preferably, the top of the connecting top plate is fixedly connected to a feed pipe, one side of the outer shell is fixedly connected to a discharge pipe, and the feed pipe is connected to the inner chamber of the filter screen plate, and the discharge pipe is connected to the discharge chamber.

[0009] This invention has the following advantages: With the cooperation of the arc-shaped filter screen plate and the inclined trapezoidal slots, on the one hand, the components that meet the filtration requirements can enter the slots and pass through more smoothly along the inclined angle, reducing the jamming and accumulation of fibers at the opening and reducing the probability of clogging. On the other hand, when the filter screen plate is subjected to material impact and compression, the stress distribution is more uniform, reducing the cracking and damage of the openings caused by excessive local stress, and helping to enhance the overall structural stability of the filter screen plate. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a three-dimensional cross-sectional structural diagram of the outer shell, rotating shaft, and filter screen plate in this utility model;

[0012] Figure 3 This utility model Figure 2 Enlarged detail diagram of section A in the middle;

[0013] Figure 4 This is a three-dimensional structural diagram of the filter screen plate in this utility model.

[0014] In the diagram: 1. Outer shell; 11. Connecting top plate; 12. Feed pipe; 121. Discharge pipe; 13. Discharge bin; 2. Rotating shaft; 21. Crusher; 3. Filter screen plate; 31. Arc-shaped screen hole; 311. Large-diameter trapezoidal groove; 312. Small-diameter trapezoidal groove; 313. Reinforcing rod. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0016] Example 1:

[0017] like Figure 1As shown in Figure 4: A fiber separator includes an outer shell 1. A rotating shaft 2 is rotatably connected inside the outer shell 1, and several crushing blades 21 are fixedly connected to the outside of the rotating shaft 2. A filter screen plate 3 is provided on the outside of the rotating shaft 2 and is fixedly connected to the inside of the outer shell 1. Several arc-shaped screen holes 31 are provided on the filter screen plate 3. A discharge chamber 13 is formed between the outside of the filter screen plate 3 and the inner cavity of the outer shell 1. The arc-shaped screen holes 31 include a large-diameter trapezoidal groove 311 and a small-diameter trapezoidal groove 312, and the large-diameter trapezoidal groove 311 and the small-diameter trapezoidal groove 312 are connected. Trapezoidal groove 311 is located inside the filter screen plate 3, and small-diameter trapezoidal groove 312 is located outside the filter screen plate 3. Several reinforcing rods 313 are fixedly connected inside the arc-shaped screen hole 31. A connecting top plate 11 is fixedly connected to the top of the outer shell 1, and a drive motor is fixedly connected to the top of the connecting top plate 11. The output end of the drive motor is fixedly connected to the rotating shaft 2. A feed pipe 12 is fixedly connected to the top of the connecting top plate 11. A discharge pipe 121 is fixedly connected to one side of the outer shell 1. The feed pipe 12 is connected to the inner chamber of the filter screen plate 3, and the discharge pipe 121 is connected to the discharge chamber 13.

[0018] In this technical solution: the outer shell 1 is the outer shell of the entire separator. The rotating shaft 2 located in the outer shell 1, with the cooperation of several crushing blades 21, forms the rotating shaft assembly of the entire separation unit, which is used to stir and crush the internal materials, so that the internal materials can be separated by the centrifugal force generated during the stirring process of the rotating shaft assembly. The filter screen plate 3 located outside the rotating shaft assembly is used to screen the materials inside the outer shell 1, so that the materials crushed by the rotating shaft assembly are separated. At this time, the filter screen plate 3 and the bottom of the tank form a filtration area. The large-diameter trapezoidal groove 311, with the cooperation of the small-diameter trapezoidal groove 312, forms the filter holes in the filter element. The diameter of the small-diameter trapezoidal groove 312 located on the inner side is larger than the diameter of the large-diameter trapezoidal groove 311 located on the outer side. The inner diameter of the filter hole formed by the small-diameter trapezoidal groove 312 and the large-diameter trapezoidal groove 311 decreases from the inner side to the outer side, forming an inclined trapezoidal filter hole. At this time, the trapezoidal screen hole with a large inlet and a small outlet allows the material to be separated during the crushing process. During the process, components that meet the filtration requirements, such as fibers, can enter and pass through the slots more smoothly along the inclined angle, reducing fiber jamming and accumulation at the orifice and lowering the probability of clogging. At the same time, compared with traditional straight cylindrical and round holes, trapezoidal inclined holes can play a good "guiding passage" effect on fibers. Moreover, during the operation of the separator, the rotation of the rotating shaft 2 can simultaneously drive the internal slurry flow. At this time, the inclined slots can use the impact force and fluidity of the material itself to make it easier to "wash away" impurities stuck at the orifice, such as small particles and short fiber clumps, further reducing the clogging of the entire filter screen plate 3 during use. It can achieve self-cleaning to a certain extent, reducing the frequency of manual cleaning. In addition, compared with regular shapes such as round holes, the inclined trapezoidal holes can make full use of the "corner space" between holes under the same screen plate area, making the effective area available for fiber passage larger, improving the overall filtration and separation efficiency of the screen plate, and increasing the production capacity of the pulp separator.

[0019] Furthermore, the inclined trapezoidal filter holes can disperse the impact force of the material on the orifice to different inclined surfaces of the orifice, rather than concentrating it on a single plane. During the pulping process of the outer shell 1, this force dispersion design can reduce the local wear and deformation of the arc-shaped screen holes 31 on the filter screen plate 3 caused by the continuous impact of the material driven by the rotating shaft 2. This helps to extend the service life of the screen plate. At the same time, the trapezoidal filter holes can distribute stress more evenly when subjected to material impact and compression, making it less likely for the orifice to crack or break due to excessive local stress, thus enhancing the overall structural stability of the filter screen plate 3.

[0020] The outer contour of the entire filter screen plate 3 is arc-shaped. The curved surface structure of the arc-shaped filter screen plate 3 can change the direction of force transmission when the material collides with the filter screen plate 3. When the material impacts the arc-shaped screen plate, the impact force will be transmitted to multiple directions simultaneously along the arc surface. At this time, the structure of the arc-shaped filter screen plate 3 allows these external forces to be more evenly distributed on the entire filter screen plate 3, avoiding stress concentration in a certain local area. At the same time, the arc-shaped filter screen plate 3 can help guide the material to form a smoother flow path on the surface of the filter screen plate 3. At this time, the material is more likely to form a spiral or rotating motion trajectory on the arc surface, thereby increasing the contact time and contact area between the material and the filter screen plate 3, allowing materials such as fibers to pass through the filter holes more fully, which helps to improve the filtration efficiency of the filter screen plate 3 and reduce the accumulation and clogging of materials at the screen holes.

[0021] The large-diameter trapezoidal grooves 311 located in the arc-shaped screen holes 31 are used to improve the structural strength of individual grooves. When the filter screen plate 3 is subjected to material impact and extrusion, and when the outer shell 1 vibrates during operation, the large-diameter trapezoidal grooves 311 can reduce the risk of deformation and collapse of the grooves due to stress. At the same time, the cooperation of several large-diameter trapezoidal grooves 311 can help improve the overall rigidity of the entire filter screen plate 3. Since the filter screen plate 3 has to withstand the impact of the slurry caused by the rotation of the internal rotating shaft 2 and the stress of its own arc surface in the outer shell 1, the reinforcing rods 313 can make the filter screen plate 3 maintain the relative position stability of other parts of the equipment, so that the pulp separation process maintains good stability and avoids the deformation of the grooves due to stress, changes in the actual size and tilt angle of the filter holes, and adverse effects on the filtration accuracy.

[0022] The workflow of this technical solution is as follows: When fiber separation is required, the slurry is first poured into the inner side of the filter screen plate 3 through the feed pipe 12. At the same time, the drive motor connected to the top of the top plate 11 is turned on. The rotating shaft 2 rotates under the drive motor, breaking up the external slurry. During this process, the slurry that meets the filtration requirements enters the discharge bin 13 through the arc-shaped screen holes 31 on the filter screen plate 3 and is discharged to the outside through the discharge pipe 121. Specific examples have been used in this paper to illustrate the principle and implementation of the invention. The above examples are only for the purpose of helping to understand the method and core idea of ​​the invention. The above description is only a preferred embodiment of the invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principle of the invention, and the above technical features can be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the invention.

Claims

1. A fiber separator, comprising an outer casing (1), characterized in that: The outer shell (1) is rotatably connected to a rotating shaft (2), and a number of crushing blades (21) are fixedly connected to the outside of the rotating shaft (2). A filter screen plate (3) is provided on the outside of the rotating shaft (2), and the filter screen plate (3) is fixedly connected to the inside of the outer shell (1). A number of arc-shaped screen holes (31) are opened on the filter screen plate (3). A discharge chamber (13) is formed between the outside of the filter screen plate (3) and the inner cavity of the outer shell (1).

2. The fiber separator according to claim 1, characterized in that: The arc-shaped sieve hole (31) includes a large-diameter trapezoidal groove (311) and a small-diameter trapezoidal groove (312), and the large-diameter trapezoidal groove (311) and the small-diameter trapezoidal groove (312) are connected. The large-diameter trapezoidal groove (311) is located on the inner side of the filter sieve plate (3), and the small-diameter trapezoidal groove (312) is located on the outer side of the filter sieve plate (3).

3. The fiber separator according to claim 1, characterized in that: The arc-shaped sieve hole (31) is internally fixedly connected with several reinforcing rods (313).

4. A fiber separator according to claim 1, characterized in that: The top of the outer shell (1) is fixedly connected to a connecting top plate (11), and the top of the connecting top plate (11) is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to the rotating shaft (2).

5. A fiber separator according to claim 4, characterized in that: The top of the connecting top plate (11) is fixedly connected to the feed pipe (12), and the side of the outer shell (1) is fixedly connected to the discharge pipe (121). The feed pipe (12) is connected to the inner chamber of the filter screen plate (3), and the discharge pipe (121) is connected to the discharge chamber (13).

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