Rolling oil magnetic type iron removing device
Patent Information
- Application Number
- CN202522047069.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0002]在冷轧带钢生产体系中，轧制油承担着润滑轧辊、冷却轧制区域、减少带钢表面摩擦损伤的核心作用，其品质直接决定带钢成品的表面光洁度与轧机设备的运行寿命，然而，轧制过程中带钢与轧辊的高压摩擦、轧机传动部件的磨损，会持续产生铁屑、铁粉等铁磁性杂质并混入轧制油中，此类杂质若未及时清除，一方面会破坏轧制油形成的油膜结构，导致轧辊与带钢间润滑失效，加剧轧辊划伤与带钢表面压痕、斑点等缺陷；另一方面，杂质长期悬浮于轧制油中，会随油液循环进入泵体、管道等部件，造成设备内部磨损，缩短轧机维护周期，增加生产运维成本，因此对轧制油进行高效除铁处理是冷轧生产中不可或缺的关键环节
通过第一驱动电机带动搅拌叶旋转，能对处理筒内的轧制油形成持续扰动，打破油液静置分层状态，使铁磁性杂质随油流均匀分布，大幅增加与磁棒本体的接触概率，避免杂质沉积导致的局部除铁不彻底问题，显著提升整体除铁效果，同时，除铁机构采用气缸驱动磁棒升降的设计，配合连接环开口与磁棒外壁的紧密贴合结构，在磁棒上移过程中可自动刮落表面吸附的铁屑，且磁棒断电消磁的配合设计进一步确保铁屑清除彻底，无需人工干预即可完成清理作业，简化了操作流程，避免了传统人工清理的繁琐与残留风险。
Smart Images
Figure CN224778228U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of iron removal technology for rolling oil, and specifically relates to a magnetic iron removal device for rolling oil. Background Technology
[0002] In the cold-rolled strip steel production system, rolling oil plays a crucial role in lubricating the rolls, cooling the rolling zone, and reducing frictional damage to the strip surface. Its quality directly determines the surface finish of the finished strip and the service life of the rolling mill. However, during the rolling process, the high-pressure friction between the strip and the rolls, as well as the wear of the mill's transmission components, continuously generate ferromagnetic impurities such as iron filings and iron powder, which mix into the rolling oil. If these impurities are not removed in time, they will, on the one hand, damage the oil film structure formed by the rolling oil, leading to lubrication failure between the rolls and the strip, and exacerbating defects such as roll scratches and indentations and spots on the strip surface. On the other hand, impurities suspended in the rolling oil for a long time will enter the pump body, pipelines, and other components with the oil circulation, causing internal wear of the equipment, shortening the mill maintenance cycle, and increasing production and maintenance costs. Therefore, efficient iron removal treatment of the rolling oil is an indispensable key link in cold rolling production. The most basic method for removing iron from rolling oil in the industry is to place a permanent magnet rod directly into the oil storage tank. The rod's magnetism attracts ferromagnetic impurities in the oil. However, the rolling oil in the tank is prone to stratification due to stagnation or slow flow. The magnet rod is usually fixed and suspended in a specific position inside the tank, making it impossible to fully contact the oil at the bottom. Due to impurities and poor flow, iron filings tend to accumulate at the bottom of the tank, and the magnetic field of the rod cannot effectively cover this area. This results in incomplete iron removal and a low iron removal rate. In addition, after the iron filings are adsorbed on the surface of the magnet rod, it is necessary to manually remove the rod from the tank for cleaning. During the cleaning process, the residual rolling oil on the surface of the magnet rod will drip down with the iron filings, causing oil waste and environmental pollution. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a magnetic iron removal device for rolling oil.
[0004] To achieve the above objectives, this utility model provides a magnetic iron removal device for rolling oil, including a processing cylinder. A cylinder cover is connected to the upper end of the processing cylinder. An oil inlet pipe is connected to the upper part of one side of the processing cylinder, and an oil outlet pipe is connected to the lower part of the other side of the processing cylinder. An iron removal mechanism is connected to the middle of the upper end of the cylinder cover. A first drive motor is connected to the middle of the upper end of the cylinder cover. The output end of the first drive motor extends through into the inside of the cylinder cover. Stirring blades are evenly connected to the outer wall of the output end of the first drive motor. A material collection mechanism is connected to the lower part of the inner wall of the processing cylinder. The material collection mechanism includes a sieve plate. A stabilizing ring is connected below the sieve plate. The outer wall of the stabilizing ring is connected to the lower part of the inner wall of the processing cylinder. A sliding groove is formed on the inner wall of the stabilizing ring. Sliding blocks are evenly slidably connected to the inner wall of the sliding groove. Multiple sliding blocks are arranged in an inverted L-shape. A toothed ring is connected to the lower end of each sliding block. A material collection cylinder is connected to the inner wall of the toothed ring.
[0005] In the above technical solution, the iron removal mechanism further includes a movable ring, and the lower ends of the multiple movable rings are circumferentially connected to magnetic rod bodies. The lower ends of the multiple magnetic rod bodies extend through to the lower end of the cylinder cover. The multiple magnetic rod bodies are located inside the processing cylinder. The upper end of the inner wall of the cylinder cover is connected to a connecting ring. The upper end of the connecting ring has an opening corresponding to the multiple magnetic rod bodies, and the multiple magnetic rod bodies are respectively located inside the multiple openings.
[0006] In the above technical solution, push blocks are connected to the middle of both sides of the moving ring, and connecting blocks are connected to the upper parts of both sides of the processing cylinder. A cylinder is connected to one side of the lower end of the connecting block. The upper ends of the two cylinders extend through to the upper ends of the two connecting blocks, and the upper ends of the two cylinders are connected to one side of the lower end of the two push blocks.
[0007] In the above technical solution, a second drive motor is further connected to one side of the lower end of the processing cylinder. The output end of the second drive motor extends through into the interior of the processing cylinder and is rotatably connected to one side of the lower end of the stabilizing ring. A gear is connected to the upper part of the outer wall of the output end of the second drive motor, and one side of the gear meshes with one side of the gear ring.
[0008] In the above technical solution, a connecting pipe is further provided at the lower middle part of the screen plate. The cross-sectional shape of the screen plate is V-shaped. The lower end of the connecting pipe extends through into the inside of the collecting cylinder. An inlet is provided at the upper end of the collecting cylinder corresponding to the connecting pipe. The lower end of the connecting pipe is located inside the inlet.
[0009] In the above technical solution, further, a feeding pipe is connected to the middle of the lower end of the collecting cylinder, a rotary joint is connected to the lower end of the feeding pipe, a discharge pipe is connected to the lower end of the rotary joint, and the lower end of the discharge pipe extends through to the lower end of the processing cylinder.
[0010] In the above technical solution, the upper end of the collecting cylinder is connected to an oil guide ring, the upper end of the oil guide ring is inclined, and the lower end of the inner wall of the collecting cylinder is connected to a material guide ring, the cross-section of the material guide ring is V-shaped.
[0011] Compared with the prior art, the present invention has the following beneficial effects: The first drive motor rotates the stirring blades, creating continuous disturbance to the rolling oil inside the processing drum. This breaks up the static stratification of the oil, allowing ferromagnetic impurities to be evenly distributed with the oil flow. This significantly increases the probability of contact with the magnetic rod body, avoiding incomplete iron removal caused by impurity deposition and significantly improving the overall iron removal effect. At the same time, the iron removal mechanism adopts a cylinder-driven magnetic rod lifting and lowering design. Combined with the tight fit between the connecting ring opening and the outer wall of the magnetic rod, the iron filings adsorbed on the surface can be automatically scraped off during the upward movement of the magnetic rod. The design of demagnetizing the magnetic rod by power-off further ensures that the iron filings are completely removed. The cleaning operation can be completed without manual intervention, simplifying the operation process and avoiding the tediousness and residual risks of traditional manual cleaning.
[0012] The V-shaped screen plate in the collecting mechanism can quickly collect the scraped iron filings into the connecting pipe and accurately guide them into the collecting cylinder, realizing the centralized collection of iron filings and avoiding secondary pollution caused by scattering. The collecting cylinder adopts a filter cylinder structure. When the second drive motor rotates at high speed through gear and ring drive, it can use centrifugal force to fully throw out the residual oil entrained in the iron filings, realizing the recycling of rolling oil and reducing resource waste. At the same time, the V-shaped guide ring on the inner wall of the collecting cylinder can gather the iron filings towards the center under the action of centrifugal force and smoothly discharge them through the feeding pipe and rotary joint, which not only ensures the dryness of the iron filings after degreasing but also reduces the waste of rolling oil. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the device proposed in this utility model; Figure 2 This is a schematic diagram of the connection structure between the magnetic rod body and the moving ring proposed in this utility model; Figure 3 This is an overall sectional view of the device proposed in this utility model; Figure 4 This is a schematic diagram of the connection structure between the moving ring and the processing cylinder proposed in this utility model; Figure 5 This is a schematic diagram of the connection structure between the slider and the groove proposed in this utility model.
[0014] In the diagram: 1. Processing cylinder; 2. Cylinder cover; 3. Oil inlet pipe; 4. Oil outlet pipe; 5. Moving ring; 6. Magnetic rod body; 7. Connecting ring; 8. Opening; 9. Connecting block; 10. Cylinder; 11. Push block; 12. First drive motor; 13. Stirring blade; 14. Screen plate; 15. Stabilizing ring; 16. Slide groove; 17. Sliding block; 18. Gear ring; 19. Collecting cylinder; 20. Second drive motor; 21. Gear; 22. Discharge pipe; 23. Rotary joint; 24. Discharge pipe. Detailed Implementation
[0015] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0016] like Figures 1-5 The image shows a magnetic iron removal device for rolling oil.
[0017] The device includes a processing cylinder 1, a cylinder cover 2 connected to the upper end of the processing cylinder 1, an oil inlet pipe 3 connected to the upper part of one side of the processing cylinder 1, an oil outlet pipe 4 connected to the lower part of the other side of the processing cylinder 1, an iron removal mechanism connected to the middle of the upper end of the cylinder cover 2, a first drive motor 12 connected to the middle of the upper end of the cylinder cover 2, the output end of the first drive motor 12 extending through into the inside of the cylinder cover 2, stirring blades 13 evenly connected to the outer wall of the output end of the first drive motor 12, and a material collection mechanism connected to the lower part of the inner wall of the processing cylinder 1. The processing cylinder 1 is a closed working space for temporary storage of rolling oil, adsorption of ferromagnetic impurities, and subsequent degreasing of iron filings. An oil inlet valve is installed on the outer wall of the oil inlet pipe 3, and an oil outlet valve is installed on the outer wall of the oil outlet pipe 4. The iron removal mechanism is used to adsorb ferromagnetic impurities such as iron filings and iron powder in the rolling oil by magnetic force to purify the oil. The stirring blades 13 forcefully disturb the rolling oil in the processing cylinder 1, breaking the static stratification state of the oil and making the ferromagnetic impurities uniformly suspended, thereby improving the adsorption efficiency of the magnetic rod. The material collection mechanism is used to collect the iron filings scraped off from the magnetic rod and centrifuge them for degreasing and centralized discharge.
[0018] The iron removal mechanism includes a moving ring 5, and a magnetic rod body 6 is circumferentially connected to the lower end of each of the multiple moving rings 5. The lower ends of the multiple magnetic rod bodies 6 extend through to the lower end of the cylinder cover 2. The multiple magnetic rod bodies 6 are located inside the processing cylinder 1. A connecting ring 7 is connected to the upper end of the inner wall of the cylinder cover 2. An opening 8 is opened at the upper end of the connecting ring 7 corresponding to the multiple magnetic rod bodies 6. The multiple magnetic rod bodies 6 are located inside the multiple openings 8. Push blocks 11 are connected to the middle of both sides of the moving ring 5. Connecting blocks 9 are connected to the upper part of both sides of the processing cylinder 1. A cylinder 10 is connected to one side of the lower end of the connecting block 9. The upper ends of the two cylinders 10 extend through to the upper ends of the two connecting blocks 9 respectively. The upper ends of the two cylinders 10 are connected to one side of the lower end of the two push blocks 11 respectively. The moving ring 5 drives the magnetic rod body 6 to achieve vertical linear movement. The magnetic rod body 6 is an electromagnetically controlled structure that generates a strong magnetic field when energized, which is used to efficiently adsorb ferromagnetic impurities in the rolling oil. When the power is turned off, the magnetic force disappears, making it easier for iron filings to detach from the surface. The connecting ring 7 is used to provide guidance and limit for the vertical movement of the magnetic rod body 6. The inner wall of the opening 8 is in close contact with the outer wall of the magnetic rod body 6, which is used to mechanically scrape the surface of the magnetic rod body 6 during its upward movement, forcibly removing the adsorbed iron filings. The cylinder 10 drives the moving ring 5 to rise and fall.
[0019] The collecting mechanism includes a screen plate 14, with a stabilizing ring 15 connected below the screen plate 14. The outer wall of the stabilizing ring 15 is connected to the lower part of the inner wall of the processing cylinder 1. A groove 16 is provided on the inner wall of the stabilizing ring 15, and sliders 17 are evenly slidably connected to the inner wall of the groove 16. The sliders 17 are arranged in an inverted L-shape. A toothed ring 18 is connected to the lower end of the sliders 17. The inner wall of the toothed ring 18 is connected to the collecting cylinder 19. A second drive motor 20 is connected to one side of the lower end of the processing cylinder 1. The output end of the second drive motor 20 extends through into the interior of the processing cylinder 1 and is rotatably connected to one side of the lower end of the stabilizing ring 15. A gear 21 is connected to the upper part of the outer wall of the output end of the second drive motor 20. One side of the gear 21 is connected to the toothed ring 18. The screen plate 14 is connected to the middle of the lower end of the screen plate 14 with a connecting pipe. The screen plate 14 has a V-shaped cross-section. The lower end of the connecting pipe extends through to the inside of the collecting cylinder 19. The upper end of the collecting cylinder 19 has a feed inlet corresponding to the connecting pipe. The lower end of the connecting pipe is located inside the feed inlet. The middle of the lower end of the collecting cylinder 19 is connected to the discharge pipe 22. The lower end of the discharge pipe 22 is connected to the rotary joint 23. The lower end of the rotary joint 23 is connected to the discharge pipe 24. The lower end of the discharge pipe 24 extends through to the lower end of the processing cylinder 1. The upper end of the collecting cylinder 19 is connected to the oil guide ring. The upper end of the oil guide ring is inclined. The lower end of the inner wall of the collecting cylinder 19 is connected to the material guide ring. The cross-section of the material guide ring is V-shaped. The sieve plate 14 is used to receive iron filings scraped off the magnetic rod. Its V-shaped cross-section structure guides the iron filings to the central connecting pipe through gravity, preventing iron filings from scattering and remaining. The stabilizing ring 15 provides a stable support foundation for the rotation of the collecting cylinder 19. The chute 16 and the slider 17 provide a guide trajectory for the rotation of the collecting cylinder 19, reducing rotational friction resistance and ensuring that the toothed ring 18 does not cause axial displacement when driving the collecting cylinder 19 to rotate. The collecting cylinder 19 has a filter-like structure, used to collect iron filings and throw out the residual rolling oil in the iron filings through centrifugal force when rotating at high speed. The connecting pipe guides the iron filings collected on the sieve plate 14 into the collecting cylinder 19. The feed inlet above the collecting cylinder 19 is used to receive the iron filings conveyed by the connecting pipe, so that the iron filings fall accurately into the collecting cylinder 19. The discharge pipe 22 can discharge the deoiled iron filings from the collecting cylinder 19. The guide ring can gather the iron filings towards the center, making it easy to discharge them through the discharge pipe 22.
[0020] Working principle: When using the device, first connect the device in series with the main pipeline for rolling oil delivery through the flange structure of the oil inlet pipe 3 and the oil outlet pipe 4 to ensure reliable sealing. After the connection is completed, open the pipeline valve and the rolling oil is continuously delivered to the inside of the processing cylinder 1 through the oil inlet pipe 3 until the oil level submerges the lower end of the magnetic rod body 6 and achieves stable oil circulation.
[0021] The first drive motor 12 is started, and its output end drives the stirring blade 13 to rotate, which disturbs the rolling oil in the processing cylinder 1. At the same time, the magnetic rod body 6 is energized to generate magnetic force, which adsorbs the ferromagnetic impurities suspended in the oil. As the oil continues to circulate and the stirring blade disturbs, impurities such as iron filings and iron powder continuously accumulate on the surface of the magnetic rod.
[0022] When the amount of iron filings adsorbed on the surface of the magnetic rod body 6 reaches a certain level, the valve of the oil inlet pipe 3 is closed first to stop the supply of rolling oil to the processing cylinder 1; at the same time, the valve of the oil outlet pipe 4 is kept open to completely drain the oil inside the processing cylinder 1. After the oil is drained, the power supply to the magnetic rod body 6 is cut off to make its magnetic force disappear. Then, the cylinder 10 is started, and the piston rod pushes the push block 11 to move upward, which drives the moving ring 5 and the magnetic rod body 6 to rise synchronously along the opening 8 of the connecting ring 7. Since the inner wall of the opening 8 of the connecting ring 7 is tightly attached to the outer wall of the magnetic rod body 6, and the magnetic rod has no magnetic force and there is no oil obstruction in the processing cylinder, the edge of the opening 8 can easily scrape off the iron filings on the surface of the magnetic rod during the rising process, avoiding the iron filings from being difficult to remove due to oil adhesion or magnetic residue. The scraped iron filings fall under the action of gravity and are collected in the middle connecting pipe through the inclined surface of the V-shaped screen plate 14, and then fall into the collecting cylinder 19 through the feed port.
[0023] The second drive motor 20 is started, and the output end of the motor drives the gear 21 to rotate. Through the meshing transmission between the gear and the gear ring 18, the gear ring 18 drives the collecting cylinder 19 to rotate along the sliding groove 16 of the stabilizing ring 15. The centrifugal force generated by the high-speed rotation of the collecting cylinder 19 throws out the residual oil entrained in the iron filings. The oil seeps out through the filter holes of the collecting cylinder, is collected by the inclined oil guide ring at the upper end, and is guided back into the processing cylinder 1 to realize the recovery of rolling oil. The iron filings gather towards the center under the action of centrifugal force and V-shaped guide ring, and are discharged through the feeding pipe 22, rotary joint 23 and discharge pipe 24 to complete the degreasing and collection of iron filings.
[0024] After cleaning, cylinder 10 drives the magnetic rod body 6 to reset into the processing cylinder 1, and the magnetic rod is energized again to generate magnetic force; then the valve of oil outlet pipe 4 is closed and the valve of oil inlet pipe 3 is opened to continue to deliver rolling oil into the processing cylinder 1, the device resumes iron removal operation, and the purified rolling oil flows back to the main pipeline from oil outlet pipe 4 through subsequent circulation.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A rolling oil magnetic attraction type iron removal device, comprising a processing cylinder (1), characterized in that, The upper end of the processing cylinder (1) is connected to a cylinder cover (2). An oil inlet pipe (3) is connected to the upper part of one side of the processing cylinder (1), and an oil outlet pipe (4) is connected to the lower part of the other side of the processing cylinder (1). An iron removal mechanism is connected to the middle of the upper end of the cylinder cover (2). A first drive motor (12) is connected to the middle of the upper end of the cylinder cover (2). The output end of the first drive motor (12) extends through into the inside of the cylinder cover (2). Stirring blades (13) are evenly connected to the outer wall of the output end of the first drive motor (12). The lower part of the inner wall of the processing cylinder (1) A material collection mechanism is connected, the material collection mechanism includes a screen plate (14), a stabilizing ring (15) is connected below the screen plate (14), the outer wall of the stabilizing ring (15) is connected to the lower part of the inner wall of the processing cylinder (1), a sliding groove (16) is opened on the inner wall of the stabilizing ring (15), a slider (17) is evenly connected to the inner wall of the sliding groove (16), the sliders (17) are arranged in an inverted L-shaped structure, the lower end of the sliders (17) is connected to a toothed ring (18), and the inner wall of the toothed ring (18) is connected to a material collection cylinder (19).
2. The rolling oil magnetic suction type iron removal device according to claim 1, characterized in that, The iron removal mechanism includes a moving ring (5), and a magnetic rod body (6) is circumferentially connected to the lower end of each of the multiple moving rings (5). The lower ends of the multiple magnetic rod bodies (6) extend through to the lower end of the cylinder cover (2). The multiple magnetic rod bodies (6) are located inside the processing cylinder (1). A connecting ring (7) is connected to the upper end of the inner wall of the cylinder cover (2). An opening (8) is opened at the upper end of the connecting ring (7) corresponding to the multiple magnetic rod bodies (6). The multiple magnetic rod bodies (6) are respectively located inside the multiple openings (8).
3. The rolling oil magnetic suction type iron removal device according to claim 2, characterized in that, Push blocks (11) are connected to the middle of both sides of the moving ring (5), and connecting blocks (9) are connected to the upper part of both sides of the processing cylinder (1). A cylinder (10) is connected to one side of the lower end of the connecting block (9). The upper ends of the two cylinders (10) extend through to the upper ends of the two connecting blocks (9), and the upper ends of the two cylinders (10) are connected to one side of the lower end of the two push blocks (11).
4. The rolling oil magnetic suction type iron removal device according to claim 1, characterized in that, The lower end of the processing cylinder (1) is connected to a second drive motor (20). The output end of the second drive motor (20) extends through into the interior of the processing cylinder (1) and is rotatably connected to the lower end of the stabilizing ring (15). A gear (21) is connected to the upper part of the outer wall of the output end of the second drive motor (20). One side of the gear (21) meshes with one side of the gear ring (18).
5. The rolling oil magnetic suction type iron removal device according to claim 1, characterized in that, The lower middle part of the sieve plate (14) is connected to a connecting pipe. The cross-sectional shape of the sieve plate (14) is V-shaped. The lower end of the connecting pipe extends through to the inside of the collecting cylinder (19). The upper end of the collecting cylinder (19) is provided with a feed inlet corresponding to the connecting pipe. The lower end of the connecting pipe is located inside the feed inlet.
6. The rolling oil magnetic attraction type iron removal device according to claim 1, characterized in that, The lower middle part of the collecting cylinder (19) is connected to the feeding pipe (22), the lower end of the feeding pipe (22) is connected to the rotary joint (23), the lower end of the rotary joint (23) is connected to the discharge pipe (24), and the lower end of the discharge pipe (24) extends through to the lower end of the processing cylinder (1).
7. The rolling oil magnetic attraction type iron removal device according to claim 1, characterized in that, The upper end of the collecting cylinder (19) is connected to an oil guide ring, the upper end of which is inclined, and the lower end of the inner wall of the collecting cylinder (19) is connected to a material guide ring, the cross-section of which is V-shaped.