A disc for a disc centrifuge

CN224912588UActive Publication Date: 2026-10-30CSSC NANJING LUZHOU MACHINE
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Patent Information

Application Number
CN202522448249.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-10-30
Estimated Expiration
2035-11-19

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种碟式离心机碟片,以解决现有装置在工作时所存在的问题

Benefits of technology

本实用新型通过一种新型碟片结构设计,在不改变原有碟片组设计参数、转鼓其它零部件结构以及保持原有最佳分离效果的同时,通过增加点筋组的形式来解决大型离心机在分离过程中,碟片和碟片之间容易贴在一起,阻断流道,堵塞碟片,影响分离机的分离性能、机械性能和正常使用的问题,且通过碟片上安有定距筋条,这样可使碟片间隙厚度液流速度均匀,其螺旋形结构较好的贴合物料流动性,能够有效的改善碟片间隙内流体流动滞后性,有利于碟片组排渣,从而大大提高了碟式离心机碟片组的分离精度。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disc type centrifuge disc piece, include: disc piece body, the disc piece body presents the conical disc structure of reverse buckle, set for the form of small upper end big lower end to adapt the spatial layout of centrifuge internal material separation channel, the utility model discloses a novel disc piece structure design, in not changing original disc piece group design parameter, the drum other component structure and keeping original best separation effect, through increasing the form of point muscle group to solve the problem that disc piece and disc piece are easy to stick together, block the flow channel, block disc piece, influence the separation performance, mechanical performance and normal use of separator in the separation process of large -scale centrifuge, and through the fixed distance muscle strip of disc piece, make the disc piece clearance thickness liquid flow speed even, its helical structure better fit material flowability, can effectively improve the fluid flow hysteresis in disc piece clearance, thereby greatly improved the separation precision of disc type centrifuge disc piece group.
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Description

Technical Field

[0001] This utility model relates to the field of disc centrifuge technology, specifically to a disc centrifuge disc. Background Technology

[0002] Disc centrifuges are a type of high-speed rotating sedimentation centrifuge. When the centrifuge is working, the powerful centrifugal force generated by the high-speed rotation quickly separates mixtures such as "liquid-solid" and "liquid-liquid-solid". Due to its high efficiency, it is widely used in many industries such as food, chemical, and shipbuilding.

[0003] The disc separator mainly consists of a motor, frame, transmission components, rotating drum, and inlet / outlet devices. The rotating drum is the core component and the primary site for material separation. Inside the drum is a set of discs that divide the drum's interior into numerous thin-layer separation spaces. Material enters the drum, passes through a distributor, and fills these thin-layer separation spaces. High-speed rotation generates different centrifugal forces on materials of varying specific gravities, thus achieving separation. The numerous thin-layer separation spaces formed by the discs also significantly shorten the material settling distance, improving and enhancing the separation effect.

[0004] Discs play a crucial role in the separation of materials. Traditional discs typically consist of a disc body and a set of ribs welded to the conical surface of the disc body. However, in some larger separator models, due to the large size and thinness of the discs, as well as the thinness of the ribs, during the separation process, areas between discs without ribs may stick together due to the disc body being too large, too thin, or deformed. This disrupts the thin separation space between the discs, obstructs the separation flow channel, affects the separation effect, causes material accumulation, and in severe cases, can clog the discs, rendering the separator unusable. Utility Model Content

[0005] The purpose of this invention is to provide a disc centrifuge disc to solve the problems existing in the operation of the existing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a disc centrifuge disc, comprising: The disc body is an inverted conical disc structure, designed with a smaller top and a larger bottom to fit the spatial layout of the material separation channel inside the centrifuge, providing a basic bearing surface for material separation. The spacer ribs are spiral-shaped and extend backward from the small end to the large end of the disc on the conical surface of the disc body in the opposite direction of the disc rotation. They are used to fix the spacing between adjacent discs and guide the material to flow along a preset trajectory to improve separation efficiency. The feed holes have an axis parallel to the axis of the disc body. Their number is equal to the number of spacer ribs, and the feed holes and spacer ribs are evenly distributed at intervals to accurately guide the material to be separated into the separation area between adjacent discs, ensuring uniform feeding. The ribs are welded to the conical surface of the disc body on the same side as the spacer ribs and are distributed at the large end of the disc body between two adjacent spacer ribs. They are used to enhance the structural strength of the large end area of ​​the disc body and prevent deformation caused by material impact during high-speed rotation.

[0007] Furthermore, the thickness of the ribs in the rib group is the same as the thickness of the spacer ribs. The ribs in the rib group can be set at both the large end and the small end of the disc body, and multiple ribs are set between two adjacent spacer ribs at the large end of the disc body.

[0008] Furthermore, the shape of the ribs in the rib group is a circular rib to facilitate uniform stress distribution.

[0009] Furthermore, the shape of the ribs in the rib group is an oblong shape that adapts to the arc of the disc cone surface to achieve a larger contact area.

[0010] Furthermore, the spiral rib has a spiral angle of 70° to 80° at the small end of the disc and a spiral angle of 40° to 50° at the large end of the disc.

[0011] Furthermore, the spaced ribs and feed holes are centrally symmetrically distributed, spaced apart in pairs, and evenly distributed to precisely guide the material to be separated into the separation area between adjacent discs, ensuring uniform feeding.

[0012] Furthermore, the diameter of the center circle of the feed hole can be determined according to the amount of material to be separated.

[0013] Furthermore, the position of the center circle of the feed hole can be determined according to the ratio of light to heavy materials to be separated.

[0014] Furthermore, the design parameters of the disc body are consistent with those of the original disc body without ribs in the centrifuge, and the length of the spaced ribs, the angular position of the welded disc body, and the number of ribs in the original disc group of the centrifuge are all the same.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This invention addresses the problem in large centrifuges where discs tend to stick together during separation, blocking flow channels and clogging discs, thus affecting separation performance, mechanical properties, and normal operation, without altering the original disc assembly design parameters, other drum components, or maintaining optimal separation efficiency. This is achieved by adding ribs to the discs. Furthermore, the spaced ribs on the discs ensure uniform liquid flow velocity across the disc gaps, and the spiral structure better conforms to material flowability, effectively improving fluid flow lag within the disc gaps and facilitating slag discharge from the disc assembly. This significantly enhances the separation accuracy of the disc centrifuge disc assembly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the connection between the disc body, the spaced ribs, and the circular dotted ribs of this utility model. Figure 2 This is a side view of the connection between the disc body and the spacer ribs in this utility model; Figure 3 This is a top view of the connection between the disc body, the spaced ribs, and the circular dotted ribs in this utility model. Figure 4 This is a bottom view of the connection between the disc body, the spaced ribs, and the circular dotted ribs in this utility model. Figure 5 This is a top view of the connection part of the disc body, the spaced ribs and the waist-shaped rib group in this utility model.

[0017] In the diagram: 1. Disc body; 2. Spacing ribs; 3. Feed hole; 4. Point rib group. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1 Please see Figure 1-5 This utility model provides a technical solution: a disc centrifuge disc, comprising: Disc 1 is an inverted conical disc structure, designed with a smaller top and a larger bottom to fit the spatial layout of the material separation channel inside the centrifuge, providing a basic bearing surface for material separation. When the centrifuge is running, the material to be separated enters the equipment and directly contacts the conical surface of disc 1. Relying on its structure of being smaller at the top and larger at the bottom, the material can naturally flow outward along the conical surface. At the same time, the conical surface of disc 1 provides supporting space for the stratification of materials of different densities, thereby achieving the function of fitting the internal spatial layout of the centrifuge and providing a stable bearing foundation for material separation, thus greatly improving the space utilization and stability of the material during the separation process.

[0020] The spacer rib 2 is spiral-shaped and extends backward from the small end to the large end of the disc on the conical surface of the disc body 1 against the direction of disc rotation. It is used to fix the spacing between adjacent discs and guide the material to flow along a preset trajectory to improve separation efficiency. When the centrifuge rotates at high speed, the spacer rib 2, with its spiral structure and extension in the opposite direction of disc rotation, precisely separates adjacent discs to maintain a fixed spacing and ensures a stable separation channel width. On the other hand, during the material flow, it guides the material to move along the spiral trajectory from the small end to the large end of the disc, preventing the material from flowing randomly. Thus, it achieves the functions of fixing the spacing between adjacent discs and guiding the material to flow along a preset path, thereby greatly improving the stability of the separation channel and the orderliness of material separation.

[0021] The feed hole 3 has its axis parallel to the axis of the disc body 1. The number of feed holes 3 is equal to the number of spacer ribs 2. The spacer ribs 2 and feed holes 3 are centrally symmetrically distributed, spaced apart, and evenly distributed. This is used to precisely guide the material to be separated into the separation area between adjacent discs, ensuring uniform feeding. When the material is conveyed to the equipment, it enters the separation system through the feed hole 3. Because the axis of the feed hole 3 is parallel to the axis of the disc body 1, its number matches the spacer ribs 2, and it is centrally symmetrically distributed, the material can be uniformly and precisely conveyed to the separation area between adjacent discs. This prepares the material for subsequent flow guided along the ribs, thus achieving the effect of precisely guiding the material into the separation area and ensuring uniform feeding. This greatly improves the uniformity of the initial stage of material separation and the continuity of subsequent separation.

[0022] The rib group 4 is welded to the conical surface of the disc body 1 on the same side as the spacer ribs 2, and is distributed at the large end of the disc body 1 between two adjacent spacer ribs 2. It is used to enhance the structural strength of the large end area of ​​the disc body 1 and prevent deformation caused by material impact during high-speed rotation. When the centrifuge is running at high speed and the material flows towards the large end of the disc and generates impact, the rib group 4, through its structure welded to the large end of the disc body 1, separates the pressure brought by the material impact, strengthens the structural stability of the large end of the disc body 1, and prevents it from deforming due to excessive force. Thus, it achieves the effect of enhancing the structural strength of the large end of the disc body 1 and resisting material impact, thereby greatly improving the structural durability and service life of the disc in the high-speed rotation environment.

[0023] Furthermore, the thickness of the ribs in the rib group 4 is the same as the thickness of the spacer ribs 2. The ribs in the rib group 4 can be set at both the large and small ends of the disc body 1, and multiple ribs can be set between two adjacent spacer ribs 2 at the large end of the disc body 1. The rib group 4 is set with the same thickness as the spacer ribs 2 and is distributed at both the large and small ends of the disc body 1. When multiple ribs are set between adjacent spacer ribs 2 at the large end, the rib group 4 can distribute the stress more evenly during the operation of the centrifuge. The multiple ribs at the large end further enhance the impact resistance, while the ribs at the small end supplement and reinforce the small end structure. The consistent thickness with the spacer ribs 2 also ensures the overall structural stress balance, thereby achieving the effect of more comprehensively dispersing stress and comprehensively reinforcing the structure of the disc body 1, and thus greatly improving the overall structural strength and stress stability of the disc.

[0024] Furthermore, the ribs of the rib group 4 are waist-shaped ribs that adapt to the curvature of the disc cone surface to achieve a larger contact area. The design of the waist-shaped ribs conforming to the curvature of the disc cone surface increases the contact area between them and the disc body 1. When subjected to material impact, the pressure can be distributed to a larger contact area, reducing the stress intensity per unit area. At the same time, it is more firmly bonded to the disc body 1, thereby increasing the contact area with the disc body 1 and reducing the stress per unit area. This greatly improves the connection stability and impact resistance between the rib group 4 and the disc body 1.

[0025] Furthermore, with the spiral spacer 2, during centrifuge operation, the large spiral angle at the small end of the disc guides the material to quickly enter the separation channel, accelerating the initial flow rate, while the small spiral angle at the large end of the disc slows down the material flow rate, allowing the material more time for stratification and separation. The combination of different spiral angles enables the material flow rate to be precisely matched with the separation requirements, thereby achieving the effect of adjusting the material flow rate according to the functional requirements of different parts of the disc, and thus greatly improving the efficiency and effect of material separation. Furthermore, the spacer ribs 2 on both sides of the central hole of the disc form a separation area after the material enters from the central hole, maintaining a stable width of the separation channel and ensuring that the material has suitable space for separation throughout the flow process, and flows smoothly to the upper and lower ends of the disc. This achieves the effect of optimizing the spatial distribution of the spacer ribs 2 in different parts of the disc, adapting to the material flow and separation requirements, and thus greatly improving the space utilization rate of the separation channel and the stability of material separation.

[0026] Furthermore, the diameter of the feed hole 3 ensures sufficient material throughput to avoid feed congestion, while also preventing excessive dispersion of material during entry due to excessively large diameter. This ensures that the material enters the separation area in a concentrated and uniform manner, matching the size of the large end of the disc and achieving a balance between feed volume and separation capacity. This results in reasonable control of feed speed and feed concentration, and adaptation to the overall size of the disc, thereby greatly improving feed efficiency and feed uniformity.

[0027] Furthermore, the central hole position of the feed hole 3 allows the separated light phase material to flow upward along the conical surface of the disc body during material separation, enabling the light phase material to reach the area suitable for its separation more quickly, reducing the flow path and the possibility of material mixing. This achieves the function of accurately positioning the feed position and adapting to the separation requirements of light phase material, thereby greatly improving the separation efficiency and purity of the light phase material.

[0028] Furthermore, the central hole of the feed hole 3 allows the separated heavy phase material to flow downwards along the conical surface of the disc body during material separation, enabling the heavy phase material to reach the area suitable for its separation more quickly. This adapts to the separation requirements of the heavy dispersed phase material, thereby greatly improving the thoroughness and quality of the separation of the heavy phase material.

[0029] Furthermore, the disc body 1 maintains the same structural design parameters as the original disc body without ribs in the centrifuge, and the length of the spacer ribs 2, the angular position of the welded disc body 1, and the number of ribs in the original disc assembly of the centrifuge are all the same. When replacing or adding this disc, there is no need to adjust the original structure of the centrifuge. The disc body 1 can be directly adapted to the original equipment space, and the parameters of the spacer ribs 2 match the original disc assembly, ensuring that the new disc and the original disc can work together to maintain the stability of the separation system. This achieves compatibility with the original structure of the centrifuge and can be used without equipment modification, thereby greatly improving the versatility of the disc and the convenience of equipment upgrades, and reducing equipment modification costs.

[0030] Example 2 Please see Figure 1-5 This utility model provides a technical solution: a disc centrifuge disc, comprising: Disc 1 is an inverted conical disc structure, designed with a smaller top and a larger bottom to fit the spatial layout of the material separation channel inside the centrifuge, providing a basic bearing surface for material separation. When the centrifuge is running, the material to be separated enters the equipment and directly contacts the conical surface of disc 1. Relying on its structure of being smaller at the top and larger at the bottom, the material can naturally flow outward along the conical surface. At the same time, the conical surface of disc 1 provides supporting space for the stratification of materials of different densities, thereby achieving the function of fitting the internal spatial layout of the centrifuge and providing a stable bearing foundation for material separation, thus greatly improving the space utilization and stability of the material during the separation process.

[0031] The spacer rib 2 is spiral-shaped and extends backward from the small end to the large end of the disc on the conical surface of the disc body 1 against the direction of disc rotation. It is used to fix the spacing between adjacent discs and guide the material to flow along a preset trajectory to improve separation efficiency. When the centrifuge rotates at high speed, the spacer rib 2, with its spiral structure and extension in the opposite direction of disc rotation, precisely separates adjacent discs to maintain a fixed spacing and ensures a stable separation channel width. On the other hand, during the material flow, it guides the material to move along the spiral trajectory from the small end to the large end of the disc, preventing the material from flowing randomly. Thus, it achieves the functions of fixing the spacing between adjacent discs and guiding the material to flow along a preset path, thereby greatly improving the stability of the separation channel and the orderliness of material separation.

[0032] The feed hole 3 has its axis parallel to the axis of the disc body 1. The number of feed holes 3 is equal to the number of spacer ribs 2. The spacer ribs 2 and feed holes 3 are centrally symmetrically distributed, spaced apart, and evenly distributed. This is used to precisely guide the material to be separated into the separation area between adjacent discs, ensuring uniform feeding. When the material is conveyed to the equipment, it enters the separation system through the feed hole 3. Because the axis of the feed hole 3 is parallel to the axis of the disc body 1, its number matches the spacer ribs 2, and it is centrally symmetrically distributed, the material can be uniformly and precisely conveyed to the separation area between adjacent discs. This prepares the material for subsequent flow guided along the ribs, thus achieving the effect of precisely guiding the material into the separation area and ensuring uniform feeding. This greatly improves the uniformity of the initial stage of material separation and the continuity of subsequent separation.

[0033] The rib group 4 is welded to the conical surface of the disc body 1 on the same side as the spacer ribs 2, and is distributed at the large end of the disc body 1 between two adjacent spacer ribs 2. It is used to enhance the structural strength of the large end area of ​​the disc body 1 and prevent deformation caused by material impact during high-speed rotation. When the centrifuge is running at high speed and the material flows towards the large end of the disc and generates impact, the rib group 4, through its structure welded to the large end of the disc body 1, separates the pressure brought by the material impact, strengthens the structural stability of the large end of the disc body 1, and prevents it from deforming due to excessive force. Thus, it achieves the effect of enhancing the structural strength of the large end of the disc body 1 and resisting material impact, thereby greatly improving the structural durability and service life of the disc in the high-speed rotation environment.

[0034] Furthermore, the thickness of the ribs in the rib group 4 is the same as the thickness of the spacer ribs 2. The ribs in the rib group 4 can be set at both the large and small ends of the disc body 1, and multiple ribs are set between two adjacent spacer ribs 2 at the large end of the disc body 1. When the rib group 4 is set with the same thickness as the spacer ribs 2 and is distributed at both the large and small ends of the disc body 1, and multiple ribs are set between adjacent spacer ribs 2 at the large end, the rib group 4 can distribute stress more evenly during centrifuge operation. The multiple ribs at the large end further enhance the impact resistance, while the ribs at the small end supplement and reinforce the small end structure. The consistent thickness with the spacer ribs 2 also ensures the overall structural stress balance, thereby achieving the effect of more comprehensively dispersing stress and comprehensively reinforcing the structure of the disc body 1, thus greatly improving the overall structural strength and stress stability of the disc.

[0035] Furthermore, the ribs of the rib group 4 are circular ribs that facilitate the uniform distribution of stress. When the material impacts the disc body 1, the circular ribs can transmit the impact force evenly to all directions, avoiding stress concentration in a certain part, making the disc body 1 more evenly stressed, reducing the possibility of local damage, thereby achieving the function of uniformly distributing stress and protecting the local structure of the disc body 1, and thus greatly improving the stress dispersion effect of the rib group 4 and the local durability of the disc body 1.

[0036] Furthermore, with the spiral spacer 2, during centrifuge operation, the spiral angle at the small end of the disc guides the material to quickly enter the separation channel, accelerating the initial flow rate, while the spiral angle at the large end of the disc slows down the material flow rate, allowing the material more time for stratification and separation. The combination of different spiral angles enables the material flow rate to be precisely matched with the separation requirements, thereby achieving the effect of adjusting the material flow rate according to the functional requirements of different parts of the disc, and thus greatly improving the efficiency and effect of material separation. Furthermore, the spacer ribs 2 on both sides of the central hole of the disc form a separation area after the material enters from the central hole, maintaining a stable width of the separation channel and ensuring that the material has suitable space for separation throughout the flow process, and flows smoothly to the upper and lower ends of the disc. This achieves the effect of optimizing the spatial distribution of the spacer ribs 2 in different parts of the disc, adapting to the material flow and separation requirements, and thus greatly improving the space utilization rate of the separation channel and the stability of material separation.

[0037] Furthermore, the diameter of the feed hole 3 ensures sufficient material throughput to avoid feed congestion, while also preventing excessive dispersion of material during entry due to excessively large diameter. This ensures that the material enters the separation zone in a concentrated and uniform manner, matching the flow rate and achieving a balance between feed rate and separation capacity. This results in reasonable control of feed speed and feed concentration, as well as compatibility with the overall size of the disc, thereby greatly improving feed efficiency and feed uniformity.

[0038] Furthermore, the central hole position of the feed hole 3 allows the separated light phase material to flow upward along the conical surface of the disc body during material separation, enabling the light phase material to reach the area suitable for its separation more quickly, reducing the flow path and the possibility of material mixing. This achieves the function of accurately positioning the feed position and adapting to the separation requirements of light phase material, thereby greatly improving the separation efficiency and purity of the light phase material.

[0039] Furthermore, the central hole of the feed hole 3 allows the separated heavy phase material to flow downwards along the conical surface of the disc body during material separation, enabling the heavy phase material to reach the area suitable for its separation more quickly. This adapts to the separation requirements of the heavy dispersed phase material, thereby greatly improving the thoroughness and quality of the separation of the heavy phase material.

[0040] Furthermore, the disc body 1 maintains the same structural design parameters as the original disc body without ribs in the centrifuge, and the length of the spacer ribs 2, the angular position of the welded disc body 1, and the number of ribs in the original disc assembly of the centrifuge are all the same. When replacing or adding this disc, there is no need to adjust the original structure of the centrifuge. The disc body 1 can be directly adapted to the original equipment space, and the parameters of the spacer ribs 2 match the original disc assembly, ensuring that the new disc and the original disc can work together to maintain the stability of the separation system. This achieves compatibility with the original structure of the centrifuge and can be used without equipment modification, thereby greatly improving the versatility of the disc and the convenience of equipment upgrades, and reducing equipment modification costs.

[0041] Working Principle: In dairy processing, fat separation; biopharmaceutical applications, cell and fermentation broth separation; and petrochemical industry, oil-water emulsion purification, the discs of this disc centrifuge play a crucial role in material separation. During operation, the material to be separated is first conveyed through a feeding system connected to the centrifuge drum. It then precisely enters the equipment through the centrally symmetrically distributed feed holes 3. Since the axis of the feed holes 3 is parallel to the axis of the disc body 1, and their number is equal to that of the spaced ribs 2 and they are located upstream of the discs, it ensures that the material to be separated enters the separation area between adjacent discs evenly and accurately. This effectively avoids uneven separation caused by localized material accumulation, laying the foundation for subsequent efficient separation. After the material enters the separation zone, under the powerful centrifugal force generated by the high-speed rotation of the centrifuge, it begins to flow along the conical surface of the disc body 1. At this time, the fixed-distance ribs 2, which are spiral-shaped and extend from the small end to the large end of the disc in the opposite direction of the disc rotation, stabilize the preset spacing between adjacent discs and ensure the stability of the separation channel. On the other hand, by guiding the material to flow along the preset spiral trajectory, the residence time of the material in the separation zone is extended, and the turbulence phenomenon during the material flow process is reduced, which significantly improves the separation efficiency of components with different densities. During the flow of material towards the large end of the disc, the denser heavy phase material gradually approaches the conical surface of the disc body 1 under the action of centrifugal force and moves towards the outer layer, while the less dense light phase material is located in the inner layer area. The point rib group 4, which is welded to the large end of the disc body 1 and located between adjacent spacer ribs 2, not only enhances the structural strength of the large end area of ​​the disc body 1 by having the same thickness as the spacer ribs 2 and a shape design that is adapted to the conical surface of the disc, but also effectively resists the deformation risk caused by the impact of material during high-speed rotation, ensuring the long-term stable operation of the disc. The distribution of multiple point ribs can further disperse stress and at the same time help guide the material flow, avoiding sudden changes in the material flow rate in the large end area. Furthermore, the spiral ribs 2 are set with a reasonable spiral angle at both the small and large ends of the disc, and the specific spacing and radial position ratio of the ribs 2 at both ends of the disc, combined with the central circle diameter parameters of the feed hole 3 optimized for the separation of light and heavy phases, further optimize the material flow path and the effect of centrifugal force. Ultimately, the material components of different densities are completely separated when they reach the large end of the disc and discharged through the corresponding discharge channels, completing the entire separation process. At the same time, the disc body 1 is consistent with the structural design parameters of the original disc body 1 without ribs 4 in the centrifuge. The length, welding angle position, and number of ribs of the ribs 2 are also matched with the original disc group, ensuring good compatibility. It can be put into use without modifying the main structure of the centrifuge, reducing the equipment upgrade cost.

[0042] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A disc for a disc centrifuge, characterized in that, include: Disc body (1), the disc body (1) is an inverted conical disc structure, and is set to be small at the top and large at the bottom to adapt to the spatial layout of the material separation channel in the centrifuge, and to provide a basic bearing surface for material separation; The spacer rib (2) is spiral in shape and extends backward from the small end to the large end of the disc on the conical surface of the disc body (1) in the opposite direction of the disc rotation. It is used to fix the spacing between adjacent discs and guide the material to flow along a preset trajectory to improve the separation efficiency. Feed hole (3), the axis of the feed hole (3) is parallel to the axis of the disc body (1), the number of which is equal to the number of spacer ribs (2), and is located upstream of spacer ribs (2); The rib group (4) is welded to the conical surface of the disc body (1) on the same side as the spacer rib (2) and distributed at the large end of the disc body (1) between two adjacent spacer ribs (2) to enhance the structural strength of the large end area of ​​the disc body (1) and avoid deformation caused by material impact during high-speed rotation.

2. The disc of a disc centrifuge according to claim 1, characterized in that: The thickness of the ribs in the rib group (4) is the same as the thickness of the spacer ribs (2). The ribs in the rib group (4) can be set at both the large end and the small end of the disc body (1). Multiple ribs are set between two adjacent spacer ribs (2) at the large end of the disc body (1).

3. The disc of a disc centrifuge according to claim 1, characterized in that: The shape of the ribs in the rib group (4) is a circular rib to facilitate uniform stress distribution.

4. The disc of a disc centrifuge according to claim 1, characterized in that: The shape of the ribs in the rib group (4) is a waist-shaped rib that adapts to the arc of the disc cone surface to achieve a larger contact area.

5. A disc centrifuge disc according to claim 1, characterized in that: The helix angle of the spacer rib (2) at the small end of the disc is 70° to 80°, and the helix angle at the large end of the disc is 40° to 50°.

6. A disc centrifuge disc according to claim 1, characterized in that: The spaced ribs (2) and feed holes (3) are centrally symmetrically distributed, spaced apart from each other, and evenly distributed to precisely guide the material to be separated into the separation area between adjacent discs, ensuring uniform feeding.

7. A disc centrifuge disc according to claim 1, characterized in that: The diameter of the center circle of the feed hole (3) can be determined according to the amount of material to be separated.

8. A disc centrifuge disc according to claim 1, characterized in that: The position of the center circle of the feed hole (3) can be determined according to the ratio of light to heavy materials to be separated.

9. A disc centrifuge disc according to claim 1, characterized in that: The disc body (1) has the same structural design parameters as the original disc body without ribs in the centrifuge, and the length of the spaced ribs (2) is the same as the angle position of the welding of the disc body (1) and the number of ribs in the original disc group of the centrifuge.