Cold rolling mill oil recovery device

Abstract

This utility model relates to the field of cold rolling mill oil recovery technology and discloses a cold rolling mill oil recovery and utilization device, including a filter barrel. A barrel cover is provided on the side wall of the filter barrel. A fixing component and a collection component are provided inside the filter barrel. An inlet pipe is fixedly connected to the side wall of the barrel cover, and a discharge pipe is fixedly connected to the bottom of the filter barrel. The fixing component includes a locking block. A filter plate is slidably connected inside the filter barrel, and a slag discharge port is opened inside the filter plate. A fixing block is fixedly connected to the bottom of the filter plate, and a connecting frame is fixedly connected inside the filter barrel. In this utility model, when cleaning the filter plate, simply unscrew the fixing ring and pull the filter plate. The fixing block slides and squeezes the locking block, causing the limiting block to compress the spring, causing the locking block to retract into the connecting frame, allowing the filter plate to be quickly removed. Compared to the traditional bolt-fixed method, which requires tools for disassembly, this significantly improves the ease of filter plate disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of cold rolling mill oil recovery technology, and in particular relates to a device for recycling and utilizing rolling oil in cold rolling mills. Background Technology

[0002] In the cold rolling process, rolling oil is used extensively as a cooling and lubricating medium, and its performance directly affects the surface quality of the cold-rolled sheet and the service life of the rolling mill. With increasing environmental requirements and the need to control production costs, the efficient recycling of used rolling oil has become an industry necessity. Cold rolling mill rolling oil recycling devices filter and purify waste rolling oil containing impurities, enabling oil recycling. This reduces waste oil pollution and lowers the cost of purchasing new oil for enterprises, making it of significant application value in the steel processing industry.

[0003] Existing cold rolling mill oil recovery and utilization devices mostly adopt a filtration structure, where the filter plates are typically fixed inside the filter tank using bolts, nuts, and other connectors. During the filtration process, impurities such as iron powder and emulsion in the rolling oil are intercepted by the filter holes on the filter plates. When the filter plates become clogged, the machine must be stopped for disassembly and cleaning. The technical principle of this fixing method is to use the tightening force of the bolts to press the filter plates into the preset installation position, ensuring the stability and sealing of the structure during the filtration process.

[0004] However, this traditional bolt fixing method requires operators to use wrenches and other tools to remove each bolt individually during actual maintenance. The operation is cumbersome and carries risks such as bolt loss and thread damage. Especially in situations where the rolling oil recovery unit requires frequent cleaning, the time-consuming and laborious disassembly process significantly extends equipment downtime. Therefore, a cold rolling mill rolling oil recovery and utilization device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for recycling rolling oil in cold rolling mills, which aims to improve the problem that the traditional method of fixing filter plates with bolts is cumbersome and requires tools for disassembly.

[0006] The technical solution of this utility model is implemented as follows: a cold rolling mill oil recycling device includes a filter barrel, a barrel cover is provided on the side wall of the filter barrel, a fixing component is provided inside the filter barrel, a collection component is provided inside the filter barrel, an inlet pipe is fixedly connected to the side wall of the barrel cover, and a discharge pipe is fixedly connected to the bottom of the filter barrel.

[0007] The fixing component includes a locking block, a filter plate is slidably connected inside the filter barrel, a slag discharge port is opened inside the filter plate, a fixing block is fixedly connected to the bottom of the filter plate, a connecting frame is fixedly connected inside the filter barrel, the side wall of the locking block is slidably connected inside the connecting frame and the fixing block, a limit block is fixedly connected to the side wall of the locking block, a sleeve is fixedly connected inside the connecting frame, a first spring is fixedly connected inside the sleeve, and the side wall of the first spring is fixedly connected to the side wall of the limit block.

[0008] Optionally, the collection component includes a collection frame, the sidewall of which is slidably connected to the inside of the filter bucket and the bottom of the slag discharge port.

[0009] Optionally, a sliding rod is fixedly connected to the bottom of the filter plate, and a horizontal groove is provided inside the collection frame, with the side wall of the sliding rod slidably connected inside the horizontal groove.

[0010] Optionally, a handle is fixedly connected to the side wall of the collection frame, and the handle side wall is slidably connected inside the filter bucket.

[0011] Optionally, a rotating shaft is rotatably connected inside the filter barrel, and the filter plate is slidably connected to the side wall of the rotating shaft. A fixing ring is threadedly connected to the side wall of the rotating shaft, and a scraper is fixedly connected to the side wall of the fixing ring. The scraper is rotatably connected to the side wall of the filter plate.

[0012] Optionally, a fixing frame is fixedly connected to the bottom of the filter barrel, and a motor is fixedly connected to the side wall of the fixing frame, with the output end of the motor connected to the rotating shaft.

[0013] Optionally, the sidewall of the fixing block is slidably connected inside the connecting frame, and the sidewall of the limiting block is slidably connected inside the sleeve.

[0014] Optionally, the fixing component further includes a second spring, which is sleeved on the side wall of the sleeve, with one end of the second spring fixedly connected inside the connecting frame and the other end of the second spring fixedly connected to the side wall of the limiting block.

[0015] 1. In this utility model, when cleaning the filter plate, after unscrewing the fixing ring, the filter plate is pulled, the fixing block slides and squeezes the locking block, which drives the limiting block to compress the first and second springs. After the locking block is retracted into the connecting frame, the filter plate can be taken out. This solves the problem that the filter plate is fixed by bolts in the traditional way, and it is more troublesome to disassemble it with the help of tools. The above technical solution improves the convenience of disassembling the filter plate and the maintenance efficiency.

[0016] 2. In this utility model, during filtration, the motor drives the rotating shaft to rotate, and the fixed ring drives the scraper to scrape the surface of the filter plate. Impurities fall into the collection frame through the slag discharge port. The horizontal groove inside the collection frame slides along the slide rod. The operator can pull the handle to clean the impurities. The internal filter holes can filter the residual rolling oil a second time, which solves the problem of impurities accumulating and clogging on the surface of the filter plate and the waste of residual oil in the impurities. The above technical solution improves the continuous filtration performance of the filtration device and the recovery rate of rolling oil.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the cold rolling mill oil recycling device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the filter barrel of the cold rolling mill oil recovery and utilization device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the filter plate structure of the cold rolling mill oil recovery and utilization device proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the filter plate of the cold rolling mill oil recovery and utilization device proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the scraper structure of the cold rolling mill oil recovery and utilization device proposed in this utility model;

[0024] Figure 7 This is a schematic diagram of the collection frame structure of the cold rolling mill oil recycling device proposed in this utility model.

[0025] The names and numbers of the components in the diagram are as follows:

[0026] 1. Filter barrel; 2. Barrel lid; 3. Feed pipe; 4. Discharge pipe; 5. Filter plate; 6. Slag discharge port; 7. Fixing block; 8. Connecting frame; 9. Clamping block; 10. Limiting block; 11. Sleeve; 12. First spring; 13. Second spring; 14. Sliding rod; 15. Collection frame; 16. Horizontal groove; 17. Handle; 18. Rotating shaft; 19. Fixing ring; 20. Scraper; 21. Fixing frame; 22. Motor. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Please refer to the appendix. Figures 1-4 This utility model provides an embodiment of a cold rolling mill oil recycling device, comprising a filter barrel 1, which is used to contain rolling oil and provide space for filtration operation to ensure stable filtration. A barrel cover 2 is provided on the side wall of the filter barrel 1. A fixing assembly and a collection assembly are provided inside the filter barrel 1. An inlet pipe 3 is fixedly connected to the side wall of the barrel cover 2, which is used to transport the rolling oil to be processed into the filter barrel 1. A discharge pipe 4 is fixedly connected to the bottom of the filter barrel 1, which is used to discharge the filtered rolling oil for recycling or storage. The fixing assembly includes a locking block 9. A filter plate 5 is slidably connected inside the filter barrel 1, which is used to intercept impurities in the rolling oil and achieve solid-liquid separation through filter holes. A slag discharge port 6 is provided inside the filter plate 5, which is used to discharge the impurities intercepted by the filter plate 5 to a collection frame 15 to prevent impurities from accumulating and affecting filtration efficiency. A fixing block 7 is fixedly connected to the bottom of the filter plate 5, and a connecting frame 8 is fixedly connected inside the filter barrel 1. The mounting slot is formed by the mounting block 9 in conjunction with the connecting frame 8 for positioning and supporting the filter plate 5. The side wall of the mounting block 9 is slidably connected to the inside of the connecting frame 8 and the fixing block 7. The mounting block 9 is used to insert into the inside of the connecting frame 8 and the fixing block 7 to fix the filter plate 5 in the filter barrel 1. The side wall of the mounting block 9 is fixedly connected to the limiting block 10. The sleeve 11 is fixedly connected inside the connecting frame 8. The first spring 12 is fixedly connected inside the sleeve 11. The side wall of the first spring 12 is fixedly connected to the side wall of the limiting block 10. The first spring 12 is used to provide elastic force to the mounting block 9 to keep it in the inserted state and fix the filter plate 5. The side wall of the fixing block 7 is slidably connected to the inside of the connecting frame 8. The side wall of the limiting block 10 is slidably connected to the inside of the sleeve 11. The fixing assembly also includes a second spring 13. The second spring 13 is sleeved on the side wall of the sleeve 11. One end of the second spring 13 is fixedly connected to the inside of the connecting frame 8. The other end of the second spring 13 is fixedly connected to the side wall of the limiting block 10. The second spring 13 is used to assist the first spring 12 to enhance the fixing effect and improve the installation reliability of the filter plate 5.

[0029] Reference Figures 5-7The collection assembly includes a collection frame 15, which collects impurities discharged from the filter plate 5 through the slag discharge port 6. Its internal filter holes allow for secondary filtration and recovery of residual rolling oil in the impurities. The side wall of the collection frame 15 is slidably connected to the inside of the filter barrel 1 and to the bottom of the slag discharge port 6. A sliding rod 14 is fixedly connected to the bottom of the filter plate 5. A transverse groove 16 is provided inside the collection frame 15, and the side wall of the sliding rod 14 is slidably connected to the inside of the transverse groove 16. The sliding rod 14 cooperates with the transverse groove 16 to guide the sliding of the collection frame 15, facilitating disassembly and assembly. A handle 17 is fixedly connected to the side wall of the collection frame 15 and slidably connected to the inside of the filter barrel 1. The handle 17 is used to facilitate the operator in pulling the collection frame. 15. Perform impurity cleaning operation. A rotating shaft 18 is rotatably connected inside the filter barrel 1. The filter plate 5 is slidably connected to the side wall of the rotating shaft 18. A fixing ring 19 is threadedly connected to the side wall of the rotating shaft 18. A scraper 20 is fixedly connected to the side wall of the fixing ring 19. The scraper 20 is rotatably connected to the side wall of the filter plate 5. The scraper 20 is used to scrape off impurities on the surface of the filter plate 5 to prevent clogging and maintain filtration performance. A fixing frame 21 is fixedly connected to the bottom of the filter barrel 1. A motor 22 is fixedly connected to the side wall of the fixing frame 21. The output end of the motor 22 is connected to the rotating shaft 18. The motor 22 causes the rotating shaft 18 to rotate, which drives the fixing ring 19 to rotate, thereby driving the scraper 20 to rotate, achieving the effect of cleaning impurities on the surface of the filter plate 5.

[0030] Working principle: The rolling oil to be processed enters the filter tank 1 through the feed pipe 3, and is separated into solid and liquid by the filter plate 5. Impurities are scraped off by the scraper 20 to the slag discharge port 6, and then fall into the collection frame 15 below. The filtered rolling oil is discharged from the discharge pipe 4 for recycling or storage.

[0031] When the filter plate 5 needs to be cleaned due to impurities, first unscrew the fixing ring 19 along the rotating shaft 18 to remove it. Then pull the filter plate 5, which will cause the bottom fixing block 7 to slide inside the connecting frame 8. During the movement, the side wall of the fixing block 7 pushes the locking block 9 to retract into the connecting frame 8. The limiting block 10 connected to the locking block 9 slides synchronously in the sleeve 11, compressing the first spring 12 and the second spring 13. When the locking block 9 is completely retracted into the connecting frame 8, the fixing of the fixing block 7 is released, and the filter plate 5 can be taken out of the filter barrel 1 for cleaning.

[0032] During the filtration process, the motor 22 drives the rotating shaft 18 to rotate, which in turn drives the scraper 20 to rotate on the surface of the filter plate 5 through the fixed ring 19, scraping the impurities to the slag discharge port 6 and causing the impurities to fall into the lower collection frame 15. The collection frame 15 can slide along a fixed direction through the guide cooperation of the slide rod 14 and the transverse groove 16. The operator can pull the collection frame 15 with the handle 17 to clean the impurities. Its internal filter holes can perform secondary filtration and recovery of the rolling oil remaining in the impurities.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for the recovery and reuse of rolling oil for cold rolling mills, comprising a filtering vat (1), characterized in that: The filter barrel (1) is provided with a barrel cover (2) on its side wall, a fixing component is provided inside the filter barrel (1), a collection component is provided inside the filter barrel (1), an inlet pipe (3) is fixedly connected to the side wall of the barrel cover (2), and a discharge pipe (4) is fixedly connected to the bottom of the filter barrel (1). The fixing component includes a locking block (9), a filter plate (5) is slidably connected inside the filter barrel (1), a slag discharge port (6) is opened inside the filter plate (5), a fixing block (7) is fixedly connected to the bottom of the filter plate (5), a connecting frame (8) is fixedly connected inside the filter barrel (1), the side wall of the locking block (9) is slidably connected inside the connecting frame (8) and the fixing block (7), a limiting block (10) is fixedly connected to the side wall of the locking block (9), a sleeve (11) is fixedly connected inside the connecting frame (8), a first spring (12) is fixedly connected inside the sleeve (11), and the side wall of the first spring (12) is fixedly connected to the side wall of the limiting block (10).

2. The cold rolling mill oil recovery device according to claim 1, characterized in that: The collection component includes a collection frame (15), the side wall of which is slidably connected to the inside of the filter bucket (1), and the side wall of the collection frame (15) is slidably connected to the bottom of the slag discharge port (6).

3. The cold rolling mill oil recovery and utilization device according to claim 2, characterized in that: The bottom of the filter plate (5) is fixedly connected to a slide rod (14), and a transverse groove (16) is opened inside the collection frame (15). The side wall of the slide rod (14) is slidably connected inside the transverse groove (16).

4. The cold rolling mill oil recovery and utilization device according to claim 3, characterized in that: The collection frame (15) has a handle (17) fixedly connected to its side wall, and the handle (17) is slidably connected to the inside of the filter bucket (1).

5. The cold rolling mill oil recovery and utilization device according to claim 4, characterized in that: The filter barrel (1) is rotatably connected to a rotating shaft (18), and the filter plate (5) is slidably connected to the side wall of the rotating shaft (18). The side wall of the rotating shaft (18) is threadedly connected to a fixing ring (19), and the side wall of the fixing ring (19) is fixedly connected to a scraper (20). The side wall of the scraper (20) is rotatably connected to the side wall of the filter plate (5).

6. The cold rolling mill oil recovery and utilization device according to claim 5, characterized in that: The bottom of the filter barrel (1) is fixedly connected to a fixing frame (21), and a motor (22) is fixedly connected to the side wall of the fixing frame (21). The output end of the motor (22) is connected to the rotating shaft (18).

7. The cold rolling mill oil recovery and utilization device according to claim 1, characterized in that: The side wall of the fixing block (7) is slidably connected inside the connecting frame (8), and the side wall of the limiting block (10) is slidably connected inside the sleeve (11).

8. The cold rolling mill oil recovery and utilization device according to claim 1, characterized in that: The fixing assembly also includes a second spring (13), which is sleeved on the side wall of the sleeve (11). One end of the second spring (13) is fixedly connected inside the connecting frame (8), and the other end of the second spring (13) is fixedly connected to the side wall of the limiting block (10).

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