A wet fiber dispersion device

Abstract

The present invention relates to a wet fiber dispersion device, comprising a dispersion plate and an impact hole. The dispersion plate is used to be connected to an external driving device. The impact hole is provided on the dispersion plate, and a protruding impact body is provided in the impact hole. The dispersion plate is moved up and down by the external driving device, and liquid continuously passes through the impact hole. The dispersion plate and the impact hole impact and mix the liquid. The angle between the impact body and the surface of the dispersion plate can make the liquid impact in an orderly manner and enhance the impact effect, so that the mixing is more uniform. More importantly, the protruding impact body can well break up fiber clusters, fiber bundles and other multi-bundle fibers into single bundles during repeated movement. The present invention has good fiber dispersion effect and good liquid mixing uniformity, so that the fibers are evenly dispersed in the liquid environment, so that the fibers in the papermaking machine mesh are evenly distributed in the subsequent papermaking step, and a higher quality carbon paper is obtained, thereby ensuring the quality of the proton exchange membrane made of carbon paper.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking equipment, in particular to a wet fiber dispersing device. Background Art

[0002] Carbon paper is often used as a gas diffusion layer and is widely used in proton exchange membranes of fuel cells. It is one of the indispensable materials for hydrogen fuel cells. It not only supports the catalyst layer and stabilizes the electrode structure, but also undertakes multiple tasks such as providing gas channels, electron channels and drainage channels for electrode reactions. It is one of the key components that affect electrode performance. Papermaking is the process of making paper from pulp. It is initially dehydrated in the wire section of the paper machine to form wet paper sheets, which are then made into paper through pressing, dehydration and drying. The degree of fiber dispersion in the pulp affects the uniformity of papermaking, which will directly affect the quality of the carbon paper produced, and thus affect the quality of the proton exchange membrane.

[0003] In actual production, the high-intensity rotational force in the process of crushing materials to form pulp makes it easy for fibers to aggregate into fiber clumps. These fiber clumps need to be broken up in water. Currently, the fibers are mainly broken up by a rotating agitator, but regular rotation still cannot disperse the stubborn fiber clumps, and the dispersion effect on the fibers is limited. The liquid mixing uniformity is poor, which needs to be improved urgently. Summary of the invention

[0004] Based on this, it is necessary to provide a wet fiber disperser that can mix liquids evenly and disperse fibers well.

[0005] The present invention provides a wet fiber dispersion device, which comprises:

[0006] A dispersion plate, the dispersion plate is used to be connected to an external driving device;

[0007] An impact hole is provided on the dispersion plate, and a protruding impact body is provided in the impact hole.

[0008] In one embodiment, the dispersion plate further comprises a connecting rod, one end of which is connected to the external driving device, and the other end of which comprises a supporting foot, which is connected to the dispersion plate.

[0009] In one embodiment, the dispersion plate is a square plate, and the connecting rod has four legs, the four legs are of the same length and are respectively connected to the four corners of the square dispersion plate.

[0010] In one embodiment, the impact body has a first wall and a second wall, one end of the first wall is connected to one end of the second wall, the other end of the first wall is connected to the inner wall of the impact hole, and the other end of the second wall is connected to the inner wall of the impact hole.

[0011] In one embodiment, the other end of the first wall surface is connected to an edge of one end of the impact hole, and / or the other end of the second wall surface is connected to an edge of another end of the impact hole.

[0012] In one embodiment, the connection between the first wall surface and the second wall surface is located in the middle of the impact hole.

[0013] In one embodiment, the angle between the first wall surface and the axis of the impact hole is β1, wherein 15°≤β1≤85°, and the angle between the second wall surface and the axis of the impact hole is β2, wherein 15°≤β2≤85°.

[0014] In one embodiment, the impact hole is a polygonal hole.

[0015] In one of the embodiments, the opening rate of the impact holes on the dispersion plate is 50%-80%.

[0016] In one embodiment, the impact body and the impact hole are integrally formed.

[0017] The wet fiber disperser provided by the present invention has impact holes on the dispersion plate. The dispersion plate is moved up and down by an external driving device. The liquid continuously passes through the impact holes, so that the liquid can be mixed evenly. The impact body in the impact hole can enhance the impact effect of the liquid, making the mixing more uniform. More importantly, the repeated movement of the raised impact body can well break up multiple bundles of fibers into single bundles, so that the fibers are evenly dispersed in the liquid environment, the dispersion effect is good, and the liquid mixing uniformity is good, so that the fibers are evenly distributed in the subsequent papermaking step, and higher quality carbon paper can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a wet fiber dispersion device according to some embodiments of the present application;

[0019] Figure 2 A top view of a wet fiber dispersion device according to some embodiments of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the impact hole in some embodiments of the present application;

[0021] Figure 4 A top view of an impact hole in some embodiments of the present application;

[0022] Figure 5 for Figure 4 Sectional view of AA in the middle;

[0023] Figure 6A cross-sectional view of the impact hole when one end portion of the first wall surface is connected to an edge of one end of the impact hole in some embodiments of the present application;

[0024] Figure 7 A cross-sectional view of the impact hole when one end of the first wall surface is connected to the inner wall of the impact hole in some embodiments of the present application;

[0025] Figure 8 A cross-sectional view of the impact hole when the first wall surface and the second wall surface are both connected to the inner wall of the impact hole in some embodiments of the present application;

[0026] Fig. 9 A cross-sectional view of the impact hole when the connection between the first wall surface and the second wall surface in some embodiments of the present application is not parallel to the surface of the dispersion plate;

[0027] Fig.10 This is a cross-sectional view of the impact hole when the connection between the first wall and the second wall is not located in the middle of the impact hole in some embodiments of the present application.

[0028] Figure Number:

[0029] 1. Wet fiber disperser; 10. Dispersing plate; 11. Connecting rod; 111. Support foot; 12. Impact hole; 121. Impact body; 1211. First wall surface; 1212. Second wall surface. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] See also Figure 1 , Figure 1 The schematic diagram of the structure of the wet fiber disperser 1 of some embodiments of the present invention is shown. The present invention provides a wet fiber disperser 1, which includes a dispersion plate 10 and an impact hole 12. The dispersion plate 10 is used to be connected to an external driving device; the impact hole 12 is opened on the dispersion plate 10, and there is a protruding impact body 121 in the impact hole 12. The impact hole 12 allows liquid to pass through the dispersion plate 10. The impact body 121 is used to disperse the fibers in the liquid. The dispersion plate 10 and the impact hole 12 can mix the liquid.

[0037] The advantage of the above embodiment is that the above wet fiber disperser 1 is provided with an impact hole 12 on the dispersion plate 10, and the dispersion plate 10 is moved up and down by an external driving device. The liquid continuously passes through the impact hole 12, so that the liquid can be mixed evenly. The impact body 121 in the impact hole 12 can enhance the impact effect of the liquid and make the mixing more uniform. More importantly, the raised impact body 121 can well break up multiple bundles of fibers into single bundles during repeated movement, so that the fibers are well dispersed in the liquid environment and the liquid mixing is well uniform, so that the fibers are evenly distributed in the subsequent papermaking step, and higher quality carbon paper can be obtained.

[0038] The dispersion plate 10 is a plate-like structure, and is used to be connected to an external driving device, and can move under the drive of the external driving device. The dispersion plate 10 is provided with an impact hole 12. In some embodiments, the external driving device drives the dispersion plate 10 to move vertically up and down in the liquid to be treated in a direction perpendicular to the dispersion plate 10. In some specific embodiments, according to specific use requirements, the dispersion plate 10 can be square, oval or polygonal, etc.

[0039] The dispersion plate 10 also has a connecting rod 11, one end of which is connected to an external driving device, and the other end of the connecting rod 11 has a support leg 111, which is connected to the dispersion plate 10, and the external driving device drives the connecting rod 11 and the dispersion plate 10 to move. In some specific embodiments, when the dispersion plate 10 is a square plate, the connecting rod 11 has four support legs 111, and the four support legs 111 are of the same length, one end is connected to the connecting rod 11, and the other end is respectively connected to the four corners of the square dispersion plate 10, and the four support legs 111 support the structure to be more stable during operation, and every two adjacent support legs 111 and the side of the dispersion plate 10 they clamp form a triangular structure, so that the connecting rod 11, the support legs 111 and the dispersion plate 10 form a stable force-bearing structure, which prolongs the service life and reduces the loss. In some specific embodiments, refer to Figure 1 The structural schematic diagram of the wet fiber disperser 1 of some embodiments of the present invention is shown. When the dispersion plate 10 is a square plate, the connecting rod 11 can also be a cross structure, and the legs 111 provided at the ends of the connecting rod 11 are fixedly connected to the four corners of the dispersion plate 10 to form a stable support. In some specific embodiments, the shape of the dispersion plate 10 and the number of connecting rods 11 and legs 111 are selected according to actual use needs, and they are not repeated here. In some specific embodiments, according to the force condition of the dispersion plate 10, a connecting rod 11 with only one leg 111 can also be selected, which is directly fixed at the center point of the dispersion plate 10, and the connecting rod 11 and the dispersion plate 10 are driven to move by an external driving device.

[0040] A plurality of dispersion plates 10 may be provided. In some embodiments, the plurality of dispersion plates 10 may be provided in a vertical direction, and the plurality of dispersion plates 10 may be connected by a vertical connecting rod 11, and may reciprocate together under the drive of an external driving device, or the plurality of dispersion plates 10 may be connected to an external driving device and move within different movement ranges, thereby enhancing the mixing ability of the liquid.

[0041] The use of the dispersion plate 10 is not limited to up and down movement in a linear direction. In some specific embodiments, one or more dispersion plates 10 can be provided. An impact hole 12 with an impact body 121 is opened on the dispersion plate 10, and the dispersion plate 10 is fixed vertically or obliquely on the rotating shaft, so that the dispersion plate 10 rotates in the liquid, which can achieve good liquid mixing and fiber dispersion.

[0042] The impact hole 12 is a geometric hole, which is opened on the dispersion plate 10, and has a protruding impact body 121 in the impact hole 12. In some specific embodiments, the impact hole 12 is a polygonal hole or a circular hole. Figure 2 and Figure 3 , Figure 2 A top view of a wet fiber dispersion device 1 according to some embodiments of the present application is shown. Figure 3 This is a structural schematic diagram of the impact hole 12 in some embodiments of the present application. Preferably, the impact hole 12 is a regular hexagonal hole. While being reasonably and tightly arranged, from the perspective of fluid mechanics, the regular hexagonal, i.e., honeycomb structure has a very good fluid diversion function. When the dispersion plate 10 moves in the liquid, the liquid is more likely to flow through the impact hole 12, and the mixing is smoother and more uniform. When the liquid is diverted and impacted by the impact hole 12, the fiber clusters and fiber bundles in the liquid can be initially dispersed. In addition, the regular hexagonal structure can save materials and has an excellent weight-strength ratio.

[0043] In some specific embodiments, the opening rate of the impact holes 12 on the dispersion plate 10 is 50%-80%. In some specific embodiments, the opening rate can also be selected from any one or any two of the following intervals: 50%, 55%, 60%, 65%, 70%, 75%, 80%. The opening rate is the opening range, that is, the ratio of the total opening area of ​​the impact holes 12 on the upper surface or lower surface of the dispersion plate 10 to the entire upper surface or lower surface area of ​​the dispersion plate 10. The opening rate within this range can play a good role in liquid mixing. If the opening rate is too small, it is difficult for the liquid to pass through. If the opening rate is too large, the liquid is easy to pass directly and the mixing effect cannot be achieved.

[0044] The impact body 121 is a protruding structure in the impact hole 12. When the liquid flows through the impact hole 12, the impact body 121 can impact the fiber clusters and fiber bundles in the liquid, thereby dispersing the fibers. Figure 3 , Figure 3This is a schematic diagram of the structure of the impact hole 12 in some embodiments of the present application. The impact body 121 has a first wall 1211 and a second wall 1212. One end of the first wall 1211 is connected to one end of the second wall 1212. The connection between the first wall 1211 and the second wall 1212 makes the impact body 121 present a sharp cone shape, which can effectively break up multiple bundles of fibers into a single bundle; the other end of the first wall 1211 is connected to the inner wall of the impact hole 12, and the other end of the second wall 1212 is connected to the inner wall of the impact hole 12. In some specific embodiments, the other end of the first wall 1211 is connected to the edge of one end of the impact hole 12, or the other end of the second wall 1212 is connected to the edge of the other end of the impact hole 12. In some specific embodiments, as Figure 3 As shown, the other end of the first wall surface 1211 is connected to one end edge of the impact hole 12 , and the other end of the second wall surface 1212 is connected to the other end edge of the impact hole 12 .

[0045] In some specific embodiments, preferably, the connection between the first wall surface 1211 and the second wall surface 1212 is located in the middle of the impact hole 12 .

[0046] In some specific embodiments, the angle between the first wall 1211 and the axis of the impact hole 12 is β1, wherein 15°≤β1≤85°, and the angle between the second wall 1212 and the axis of the impact hole 12 is β2, wherein 15°≤β2≤85°. In some specific embodiments, β1 and β2 may also be selected from any one or two of the following intervals: 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°.

[0047] The liquid flows through the impact hole 12 and is impacted by the structure of the dispersion plate 10 between the impact hole 12 and the impact hole 12, and is initially dispersed. The angle between the impact hole 12 and the wall of the impact body 121 can make the liquid produce an orderly impact effect. The liquid flows through the first wall 1211 and the second wall 1212 of the impact body 121, which increases the flow distance of the liquid within the same moving height difference, thereby achieving mixing consistency.

[0048] See also Figure 4 and Figure 5 , Figure 4 This is a top view of the impact hole 12 in some embodiments of the present application. Figure 5 for Figure 4In the cross-sectional view of AA in the middle, in some specific embodiments, the connection between the first wall 1211 and the second wall 1212 is located in the middle of the impact hole 12, and the connection between the first wall 1211 and the second wall 1212 presents a sharp cone angle, which can well break up the multi-bundle fibers into a single bundle. The other end of the first wall 1211 is connected to the edge of one end of the impact hole 12, and the other end of the second wall 1212 is connected to the edge of the other end of the impact hole 12. The angle between the first wall 1211 and the axis of the impact hole 12 is β1, wherein 15°≤β1≤85°, and the angle between the second wall 1212 and the axis of the impact hole 12 is β2, wherein 15°≤β2≤85° and β1=β2, forming a basic impact body 121 and the impact hole 12. In this embodiment, preferably, the impact hole 12 is a regular hexagonal hole. The body 121 is arranged around the impact hole 12, the inner wall of the impact hole 12 is the first wall 1211 and the second wall 1212 of the impact body 121, and the bottom surface of the impact body 121 is the hole wall of the impact hole 12 without the impact body 121, the upper surface of the dispersion plate 10 is connected to the first wall 1211, and the lower surface of the dispersion plate 10 is connected to the second wall 1212. The holes of the regular hexagonal honeycomb structure have a good fluid diversion function, and the pointed cone-shaped protrusions formed around the connection between the first wall 1211 and the second wall 1212 can make the water flow produce orderly impact, and can also make the fiber clusters and fiber bundles more easily dispersed by the impact of the pointed cone angle. Therefore, when the external driving device drives the dispersion plate 10 to move up and down, the resistance is small and the liquid can be evenly mixed and the fibers in the liquid can be dispersed into single bundles.

[0049] Figure 6-Figure 8 The cross-sectional views of the impact hole 12 in some embodiments of the present application are shown respectively. In these embodiments, the impact hole 12 is a regular hexagonal hole as an example to illustrate different changes in the shape of the impact body 121. As mentioned above, the impact hole 12 can also be other polygonal or elliptical shapes, and technicians can freely combine and transform them, which will not be described here one by one. Figure 6 , Figure 6 A cross-sectional view of the impact hole 12 is shown when one end portion of the first wall 1211 is connected to the edge of one end of the impact hole 12 in some embodiments of the present application, one end of the first wall 1211 is connected to one end of the second wall 1212, the connection between the first wall 1211 and the second wall 1212 is located in the middle of the impact hole 12, the other end of the first wall 1211 is connected to the inner wall of the impact hole 12, and the other end of the second wall 1212 is connected to the edge of one end of the impact hole 12, wherein the other end of the first wall 1211 can be located at any position on the inner wall of the impact hole 12, but the angle between the first wall 1211 and the axis of the impact hole 12 is β1, where 15°≤β1≤85°, and the angle between the second wall 1212 and the axis of the impact hole 12 is β2, where 15°≤β2≤85°, as shown in FIG. Figure 6 The first wall surface 1211 shown in FIG. 1 may be partially located on the inner wall of the impact hole 12 and partially located on an edge of the impact hole 12. Figure 7 The cross-sectional view of the impact hole when one end of the first wall surface 1211 is connected to the inner wall of the impact hole 12, and one end of the first wall surface 1211 is completely located on the inner wall of the impact hole 12 and not at the edge of one end of the impact hole 12. Figure 8 , Figure 8 A cross-sectional view of the impact hole 12 is shown when the first wall 1211 and the second wall 1212 are both connected to the inner wall of the impact hole 12 in some embodiments of the present application, one end of the first wall 1211 is connected to one end of the second wall 1212, the connection between the first wall 1211 and the second wall 1212 is located in the middle of the impact hole 12, the other end of the first wall 1211 is connected to the inner wall of the impact hole 12, and the other end of the second wall 1212 is connected to the inner wall of the impact hole 12, wherein 15°≤β1≤85°, 15°≤β2≤85°, in some specific embodiments, under the conditions of 15°≤β1≤85°, 15°≤β2≤85°, the connection between the first wall 1211 and the second wall 1212 can be located at any height in the impact hole 12.

[0050] See also Fig. 9 , Fig. 9 The cross-sectional view of the impact hole 12 is shown when the connection between the first wall 1211 and the second wall 1212 is not parallel to the surface of the dispersion plate 10 in some embodiments of the present application. One end of the first wall 1211 is connected to one end of the second wall 1212, the other end of the first wall 1211 is connected to one end edge of the impact hole 12, and the other end of the second wall 1212 is connected to the other end edge of the impact hole 12. The connection between the first wall 1211 and the second wall 1212 is not parallel to the surface of the dispersion plate 10, so that the sharp cone angle structure of the connection between the first wall 1211 and the second wall 1212 is obliquely distributed. Fig.10 , Fig.10 A cross-sectional view of the impact hole 12 is shown when the connection between the first wall 1211 and the second wall 1212 is not located in the middle of the impact hole 12 in some embodiments of the present application, one end of the first wall 1211 is connected to one end of the second wall 1212, the other end of the first wall 1211 is connected to the edge of one end of the impact hole 12, and the other end of the second wall 1212 is connected to the edge of the other end of the impact hole 12. The connection between the first wall 1211 and the second wall 1212 is parallel to the surface of the dispersion plate 10 and is located at any height of the impact hole 12, but satisfies 15°≤β1≤85° and 15°≤β2≤85°. In some specific embodiments, the other end of the first wall 1211 and the other end of the second wall 1212 can be set on the inner wall of the impact hole 12 instead of the edge.

[0051] In some specific implementations, the impact body 121 may also be arranged around the inner wall gap of the impact hole 12 to form one or more independent protrusions, which can also play a good role in breaking up the fibers.

[0052] In some specific embodiments, the impact body 121 is integrally formed with the impact hole 12. In the case of a large number of openings, the integral forming is more convenient to process and more stable. In some embodiments, the dispersion plate 10 is integrally formed with the impact hole 12.

[0053] The wet fiber dispersing device 1 provided by the present invention has an impact hole 12 on the dispersing plate 10. The dispersing plate 10 is driven by an external driving device to reciprocate up and down. The liquid is continuously stirred by the physical structure of the dispersing plate 10 and passes through the impact hole 12, so that the liquid is evenly mixed. At the same time, the liquid is impacted by the physical structure of the dispersing plate 10 between the impact holes 12 and the impact holes 12, and is initially dispersed. The impact body 121 in the impact hole 12 presents a sharp cone-shaped protrusion. The angle between the surface of the impact hole 12 and the first wall 1211 and the second wall 1212 of the impact body 121 can make the liquid produce an orderly impact effect, increase the flow of the liquid, and make the liquid mixed. More importantly, the raised pointed cone-shaped impact body 121 can effectively break up the fiber clusters, fiber bundles and other fibers in the liquid into single bundles during the repeated movement, and make the fibers evenly dispersed in the liquid environment, solving the problems of limited effect of traditional rotary agitators in dispersing fibers by rotation and the existence of fiber clusters that are difficult to stir and disperse. The present invention has good effect in dispersing fibers, improves fiber utilization, saves resources, protects the environment, and has good liquid mixing uniformity, so that the fibers in the papermaking machine mesh in the subsequent papermaking step are evenly distributed, and higher quality carbon paper can be obtained, thereby improving the quality compliance rate and ensuring the quality of the proton exchange membrane made of carbon paper.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0055] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A wet fiber dispersion device, characterized in that: include: A dispersion plate, the dispersion plate is used to be connected to an external driving device; An impact hole, wherein the impact hole is opened on the dispersion plate and has a protruding impact body in the impact hole; The external driving device is used to drive the dispersion plate to move vertically up and down in the liquid to be treated in a direction perpendicular to the dispersion plate; There are multiple impact holes; the impact body has a first wall surface and a second wall surface, one end of the first wall surface is connected to one end of the second wall surface, the other end of the first wall surface is connected to the inner wall of the impact hole, and the other end of the second wall surface is connected to the inner wall of the impact hole; The angle between the first wall surface and the axis of the impact hole is β1, where 15°≤β1≤85°, and the angle between the second wall surface and the axis of the impact hole is β2, where 15°≤β2≤85°; The impact holes are polygonal holes, and the impact holes are closely arranged.

2. The wet fiber dispersion device according to claim 1, characterized in that: The dispersion plate further comprises a connecting rod, one end of which is connected to the external driving device, and the other end of which comprises a supporting foot, which is connected to the dispersion plate.

3. The wet fiber dispersion device according to claim 2, characterized in that: The dispersion plate is a square plate, and the connecting rod has four legs, which are of the same length and are respectively connected to the four corners of the square dispersion plate.

4. The wet fiber dispersion device according to claim 1, characterized in that: The other end of the first wall surface is connected to one end edge of the impact hole, and / or the other end of the second wall surface is connected to the other end edge of the impact hole.

5. The wet fiber dispersion device according to claim 1, characterized in that: The connection point between the first wall surface and the second wall surface is located in the middle of the impact hole.

6. The wet fiber dispersion device according to claim 1, characterized in that: The opening rate of the impact holes on the dispersion plate is 50%-80%.

7. The wet fiber dispersion device according to claim 1, characterized in that: The impact body and the impact hole are integrally formed.

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