Material cleaning mechanism of granulation equipment

Abstract

The utility model provides a material cleaning mechanism of granulation equipment, and relates to the technical field of chemical material preparation, the cleaning mechanism comprises a rotating brush, the rotating brush is arranged close to a rotating knife, the axis extension direction of the rotating brush is consistent with the axis extension direction of the rotating knife, and the rotating brush is used for cleaning residual materials on the rotating knife. Compared with the prior art that a fixed brush can only conduct passive cleaning at a single position, the rotary brush forms a dynamic cleaning interface through active rotation.

Description

Technical Field

[0001] This utility model relates to the field of chemical material preparation technology, and in particular to a material cleaning mechanism for a granulation equipment. Background Technology

[0002] Currently, in the chemical industry, rotary cutting technology is used to cut materials into strips when manufacturing pellets. The material often sticks to the blade, and the residue left on the blade directly affects the cutting effect and may even cause the equipment to malfunction.

[0003] Cleaning is usually done with a fixed brush, but the cleaning cycle is short and the effect is not good. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a material cleaning mechanism for a granulation equipment, so as to solve the technical problems of the existing technology that uses fixed brushes for cleaning, which has a short cleaning cycle and is prone to poor effect.

[0005] To achieve the above objectives, this utility model provides a material cleaning mechanism for a granulation equipment, including a rotating brush. The rotating brush is disposed adjacent to a rotating blade, and the axial extension direction of the rotating brush is consistent with the axial extension direction of the rotating blade. The rotating brush is used to clean the material remaining on the rotating blade.

[0006] Optionally, the rotation direction of the rotating brush is opposite to the rotation direction of the rotating blade.

[0007] Optionally, the rotational speed of the rotating brush is not the same as the rotational speed of the rotating blade.

[0008] Optionally, the rotary cutter includes a cutter shaft and a helical blade, the helical blade being disposed on the cutter shaft in a helical manner along the axial direction of the cutter shaft.

[0009] Optionally, the helical blade is fixed on the cutter shaft in a continuous and / or discontinuous manner.

[0010] Optionally, the rotating brush includes a brush shaft and brush bristles, the brush bristles comprising a plurality of bristles and arranged radially on the brush shaft, the brush shaft driving the brush bristles to rotate.

[0011] Optionally, the bristles are fixedly arranged in a row on the brush shaft along the axial direction of the brush shaft.

[0012] Optionally, the bristles can rotate into the gap between the spiral blades.

[0013] The material cleaning mechanism for the granulation equipment provided by this utility model has the following technical effects:

[0014] This cleaning mechanism includes a rotating brush positioned adjacent to a rotating blade, with the axis of the rotating brush extending in the same direction as the axis of the rotating blade. The rotating brush is used to clean residual material on the rotating blade. Compared to existing fixed brushes that can only perform passive cleaning in a single position, the rotating brush of this invention creates a dynamic cleaning interface through active rotation.

[0015] In the optional solution, coaxial rotation allows the brush bristles to circulate and contact different parts of the spiral blade, improving cleaning coverage. Due to the unique curved structure of the spiral blade, the rotating brush can follow the spiral trajectory for cleaning, effectively removing hard-to-reach corners and grooves that are difficult to reach with traditional methods. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the material cleaning mechanism of the granulation equipment of this utility model;

[0018] Figure 2 yes Figure 1 Front view of the material cleaning mechanism of the intermediate pelleting equipment;

[0019] Figure 3 yes Figure 1 Side view of the material cleaning mechanism of the granulation equipment;

[0020] Figure 4 yes Figure 1 A cross-sectional view of the material cleaning mechanism of the pelleting equipment along the AA direction.

[0021] in, Figures 1-4 :

[0022] 1. Rotating brush; 11. Brush bristles; 12. Brush shaft; 2. Rotating blade; 21. Spiral blade; 22. Blade shaft; 3. Material. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In existing technologies, the chemical industry commonly uses rotary cutting technology to cut material into three strips during pellet manufacturing. However, material three tends to stick to the blades during contact, leading to residue accumulation that reduces cutting accuracy and can even cause equipment shutdown. Traditional cleaning methods use a fixed brush structure, but due to a blind spot between the brush and the rotating blades, the cleaning coverage is limited, making it difficult to completely remove material three residue. Maintenance personnel must frequently stop the machine to replace the brush, impacting production efficiency. During continuous production at a pharmaceutical factory, it was found that the fixed brush could only clean a localized area of ​​the blades, and material three easily accumulated and agglomerated in the gaps between the spiral blades 21, increasing the rotational resistance of the cutter shaft 22 and causing an abnormally high motor load.

[0025] To address the aforementioned issues, it was noted that the mismatch between the static cleaning mode of the fixed brush and the dynamic rotating blades resulted in persistent cleaning blind spots. Analysis of the distribution of material adhesion during blade rotation revealed that peeling off residue from the blade surface requires a dynamic counterforce. After multiple experiments, it was verified that a synchronously rotating brush structure could generate continuous contact pressure, and the arrangement of the brush and blades ensured that the cleaning trajectory covered the entire length of the blades. The design process focused on the spatial layout of the rotating components to avoid interference between the brush bristles and the blades, ultimately determining a structural scheme where their axes are parallel and the spacing is adjustable.

[0026] Therefore, this utility model proposes a material cleaning mechanism 3 for granulation equipment, such as... Figures 1-4 As shown, it includes a rotating brush 1, which is disposed adjacent to the rotating blade 2. The axis of the rotating brush 1 extends in the same direction as the axis of the rotating blade 2. The rotating brush 1 is used to clean the material 3 remaining on the rotating blade 2.

[0027] The rotating brush 1 is a cleaning assembly with a rotatable brush body. It is driven by a power source to rotate around its own axis, specifically by a motor driving the brush shaft 12. This structure generates dynamic cleaning force through rotational motion, creating a relative motion relationship with the rotating blade 2.

[0028] The rotating blade 2 is a cylindrical blade with a cutting edge. Specifically, it can be implemented by a hollow shaft structure with a spiral blade 21 on the surface. Its rotational motion is used to cut the material 3. The propulsive action generated by the spiral blade 21 can easily cause material 3 to remain.

[0029] The axis extension direction is consistent, meaning that the central axis of the rotating brush 1 and the rotating blade 2 are kept parallel. This can be achieved by parallel installation in the same direction or parallel installation in opposite directions. This arrangement ensures that the bristles 11 can fully cover the cleaning area along the length of the blade.

[0030] Specifically, the rotating brush 1 is mounted on the side of the rotating blade 2, with their axes parallel and spaced apart. When the rotating blade 2 rotates at high speed to cut the material 3, the brush shaft 12 rotates synchronously, driving the bristles 11 to rotate. The bristles 11 continuously sweep across the blade surface with a specific contact pressure. For the continuous cutting surface formed by the spiral blade 21, the axially distributed bristles 11 can penetrate deep into the blade gaps, and the centrifugal force generated during rotation throws the detached material 3 debris away from the cleaning area. The speed difference between the blade shaft 22 and the brush shaft 12 creates a dynamic cleaning effect, avoiding the uneven wear problem caused by the fixed brush contacting the same area for a long time.

[0031] Compared to existing technologies, fixed brushes can only perform passive cleaning at a single location, while rotating brush 1 creates a dynamic cleaning interface through active rotation. In traditional solutions, the contact area between the brush and the blade is limited by the fixed installation position. This solution uses coaxial rotation to allow the bristles 11 to circulate and contact different parts of the blade, thus improving cleaning coverage. For the unique curved surface structure of the spiral blade 21, the rotating brush 1 can perform follow-up cleaning along the spiral trajectory, effectively removing blade groove dead corners that are difficult to reach with traditional solutions.

[0032] Through the above technical solution, this utility model achieves continuous cleaning of residues on the surface of the rotating blade 2, reducing the dulling of the spiral blade 21 caused by the accumulation of material 3. The dynamically rotating bristles 11 form a self-cleaning mechanism, and the bristles 11 remain in a stretched state under the action of centrifugal force, extending their effective service life compared to a fixed brush. This structure completes the cleaning operation without stopping the machine, avoiding production interruptions, and is particularly suitable for granulation production lines that require continuous operation.

[0033] In detail, the rotation direction of the rotating brush 1 is opposite to the rotation direction of the rotating blade 2.

[0034] The opposite rotation direction means that the brush shaft 12 and the cutter shaft 22 rotate in opposite circular motion trajectories. This can be achieved by using an independent motor drive or a gear reverse transmission mechanism, which generates a relative speed difference through the reverse motion.

[0035] Specifically, when the rotating blade 2 cuts the material 3 in a clockwise direction, the rotating brush 1 is set to rotate counterclockwise. The two sets of rotating bodies form a counter-movement contact surface at adjacent positions, and the brush bristles 11 enter the blade edge gap of the spiral blade 21 in a reverse cutting manner. During the dynamic contact process, the brush bristles 11 generate interlaced friction with the blade surface, and the residual material 3 is peeled off under the action of bidirectional shearing force.

[0036] Furthermore, it should be noted that the rotation speed of the rotating brush 1 of this utility model is not the same as the rotation speed of the rotating blade 2.

[0037] The inconsistent rotation speeds refer to the difference in rotational speed between the brush shaft 12 and the blade shaft 22. This difference can be achieved through a variable speed motor or transmission device. The brush rotational speed can be set to be higher or lower than the blade shaft 22 rotational speed; for example, the brush rotational speed can be 1.2-2 times that of the blade shaft 22. The relative motion generated by this speed difference enhances the dynamic contact between the bristles 11 and the blade surface.

[0038] Specifically, when the spiral blade 21 cuts the material 3 at a first rotational speed, the brush shaft 12 drives the bristles 11 to rotate in the opposite direction at a second rotational speed. The difference in rotational speeds causes the bristles 11 to sweep across the blade surface multiple times per unit time. Especially when sticky material 3 adheres to the blade surface, the shearing action created by the speed difference can effectively remove the residue. For discontinuous spiral blades 21, the bristles 11 can alternately enter the blade gaps for cleaning during high-speed rotation.

[0039] As a preferred embodiment, such as Figure 1-4 As shown, the rotating cutter 2 includes a cutter shaft 22 and a helical blade 21. The helical blade 21 is disposed on the cutter shaft 22 in a helical manner along the axial direction of the cutter shaft 22.

[0040] The cutter shaft 22 is the central rotating component that supports the spiral blades 21. It can be made of stainless steel, and its length and diameter can be adjusted according to the material 3 processing volume. It is used to transmit power and support the spiral blades 21 to complete the cutting action. The spiral blades 21 are cutting components distributed in a spiral shape. They can be fixed to the surface of the cutter shaft 22 by segmented welding or integral molding. The spiral angle is, for example, 15-45 degrees. They are arranged continuously or at intervals to form a cutting surface. The spiral propulsion action simultaneously pushes the material 3 to separate during the cutting process, thereby reducing the residue of material 3 on the blade surface.

[0041] Specifically, the spiral blade 21 is fixed in a spiral shape along the axis of the cutter shaft 22. For example, it can be formed by continuous welding to create a complete spiral cutting surface, or by bolting at intervals to form a segmented cutting structure. When the cutter shaft 22 rotates, the spiral blade 21 cuts the material 3 while simultaneously using the propulsive effect of the spiral structure to push the cut material 3 towards the discharge direction, preventing the material 3 from accumulating in the blade gaps. In addition, the continuous cutting trajectory of the spiral blade 21 can reduce the instantaneous pressure when the material 3 contacts the blade, thereby reducing the probability of adhesion.

[0042] Furthermore, the spiral blade 21 is fixed on the cutter shaft 22 in a continuous and / or discontinuous manner.

[0043] In the continuous method, the helical blades 21 form an uninterrupted helical extension structure along the surface of the cutter shaft 22. Specifically, the helical blades 21 can be combined with the cutter shaft 22 using integral casting or continuous welding processes to maintain the continuity of the cutting trajectory. In the discontinuous method, the helical blades 21 are distributed in segments or at intervals on the surface of the cutter shaft 22. Specifically, multiple helical blade units 21 can be independently installed on the cutter shaft 22 using bolt fixing or segmented welding, thereby creating local material flow spaces 3 during the cutting process.

[0044] Specifically, the continuous arrangement of the spiral blades 21 ensures the continuity and stability of material 3 cutting, making it suitable for uniform cutting of high-density materials 3; while the discontinuous arrangement creates temporary storage areas for material 3 through segmented intervals, reducing material 3 accumulation on the blade surface. For example, continuous spiral segments and discontinuous segments can be alternately arranged on the cutter shaft 22, or a fully continuous or fully discontinuous blade layout can be selected according to the characteristics of the material 3. Furthermore, the gaps between discontinuous blade units allow the rotating brush 1 to contact the blade surface more effectively, reducing the generation of cleaning dead zones.

[0045] As a preferred embodiment, such as Figure 1-4 As shown, the rotating brush 1 includes a brush shaft 12 and brush bristles 11. The brush bristles 11 include several strands and are arranged on the brush shaft 12 radially. The brush shaft 12 drives the brush bristles 11 to rotate.

[0046] The brush shaft 12 is a cylindrical support component used to mount the brush bristles 11 and transmit rotational power. Specifically, it can be implemented using a metal shaft and a motor drive, with a rigid connection ensuring that the brush bristles 11 rotate synchronously with the shaft. The brush bristles 11 are cleaning units, specifically made of nylon or polyester fiber in a bundled structure, arranged radially in a ring, for contacting the surface of the rotating blade 2 and removing residual material 3. Radially mounted on the brush shaft 12, the roots of the brush bristles 11 are fixed to the outer circumference of the brush shaft 12, specifically by welding, gluing, or snap-fitting, allowing the ends of the brush bristles 11 to extend outwards to form a coverage area, thereby increasing the contact area with the rotating blade 2.

[0047] Specifically, the brush shaft 12 is connected to the drive motor via a coupling, driving the bristles 11 to rotate around the axis during operation. Multiple bristles 11 are evenly distributed radially along the brush shaft 12, forming a ring-shaped cleaning area. As the brush shaft 12 rotates, the bristles 11 continuously sweep across the surface of the rotating blade 2. Because the bristles 11 are designed as a dynamic structure that can rotate with the shaft, their relative movement with the rotating blade 2 generates a continuous scraping effect, effectively removing the material 3 adhering to the blade. The radial arrangement of the bristles 11 ensures a more uniform distribution of contact pressure between the bristle tips and the blade surface, preventing excessively rapid localized wear.

[0048] Furthermore, it is proposed that the bristles 11 be fixedly arranged in a row along the axial direction of the brush shaft 12 on the brush shaft 12.

[0049] Specifically, the brush shaft 12 is configured to drive the bristles 11 to rotate around its own axis. When the bristles 11 are arranged in rows along the axial direction of the brush shaft 12, the rotation trajectory of each row forms a continuous coverage area in the axial direction. During rotation, the row-arranged bristles 11 can successively enter the gaps between adjacent spiral lines of the spiral blade 21, removing residual material 3 through contact friction between the bristles 11 and the blade surface. Since the axial coverage range of the row arrangement matches the extension direction of the spiral blade 21, material 3 at different axial positions on the blade surface can be cleaned by the corresponding bristles 11.

[0050] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A material cleaning mechanism for a granulation device, characterized in that, The device includes a rotating brush, which is disposed adjacent to a rotating blade, and the axis of the rotating brush extends in the same direction as the axis of the rotating blade. The rotating brush is used to clean residual material on the rotating blade.

2. The material cleaning mechanism of the granulation equipment according to claim 1, characterized in that, The rotating brush rotates in the opposite direction to the rotating blade.

3. The material cleaning mechanism of the granulation equipment according to claim 2, characterized in that, The rotational speed of the rotating brush is not the same as the rotational speed of the rotating blade.

4. The material cleaning mechanism of the granulation equipment according to claim 1, characterized in that, The rotating cutter includes a cutter shaft and a helical blade, the helical blade being disposed on the cutter shaft in a helical manner along the axial direction of the cutter shaft.

5. The material cleaning mechanism of the granulation equipment according to claim 4, characterized in that, The spiral blade is fixed on the cutter shaft in a continuous and / or discontinuous manner.

6. The material cleaning mechanism of the granulation equipment according to claim 4, characterized in that, The rotating brush includes a brush shaft and brush bristles. The brush bristles consist of several strands and are arranged radially on the brush shaft. The brush shaft drives the brush bristles to rotate.

7. The material cleaning mechanism of the granulation equipment according to claim 6, characterized in that, The bristles are fixedly arranged in a row along the axial direction of the brush shaft on the brush shaft.

8. The material cleaning mechanism of the granulation equipment according to claim 6, characterized in that, The bristles can rotate into the gap between the spiral blades.

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