A cleaning device and bar / wire rolling equipment
By designing a cleaning device in the bar and wire rod rolling equipment, and using a collection trough and flushing mechanism to automatically remove the slag from the roller table, the problems of high cleaning difficulty and high safety risks have been solved, achieving efficient cleaning and stable production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHAGANG STEEL CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-26
AI Technical Summary
During the bar and wire rod rolling process, cleaning the slag under the roller table is difficult and poses a high safety risk, and can easily lead to equipment wear and reduced production efficiency.
Design a cleaning device including a collection tank, a slag discharge mechanism and a flushing mechanism. The slag is quickly discharged through the slag discharge port and nozzle on the bottom wall of the collection tank. Combined with a slag discharge pump and a level gauge, the device achieves automated control and reduces the amount of manual cleaning work.
It improved the efficiency of slag cleaning, reduced equipment maintenance costs, ensured the safety of the production environment and the stable operation of equipment, and improved production efficiency and finished product qualification rate.
Smart Images
Figure CN224272710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hot-rolled steel production equipment, and in particular to a cleaning device and bar and wire rod rolling equipment. Background Technology
[0002] In the steel industry, bar and wire rod rolling is a crucial step in steel production, and its production efficiency and product quality have a significant impact on the development of the entire steel industry. During the bar and wire rod rolling process, iron oxide on the surface of the billet often detaches due to vibration during pre-rolling transportation, a common phenomenon in the industry.
[0003] Currently, the common method for cleaning iron oxide that accumulates under the roller conveyor when billets tumble from the loading platform to the furnace front roller conveyor is regular manual cleaning. However, the dense equipment layout and confined space in the furnace front roller conveyor area make manual cleaning extremely difficult. Furthermore, the roller conveyor is in continuous rotation, posing a significant safety hazard as operators are highly susceptible to mechanical injuries while cleaning iron oxide nearby. In addition, if iron oxide is not cleaned promptly, these fine particles can enter the roller conveyor bearing housings, causing bearing wear and lubrication failure. This not only reduces equipment lifespan but also affects the normal and stable operation of the equipment, leading to decreased efficiency in bar and wire rod rolling production and increased equipment maintenance costs and downtime for repairs. Utility Model Content
[0004] The purpose of this utility model is to provide a cleaning device and bar and wire rolling equipment to solve the problems of difficult cleaning of slag under the roller table, high safety risks and easy damage of bar and wire rolling equipment, improve cleaning efficiency and safety, and reduce maintenance costs.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A cleaning device for cleaning material residue that falls off the billet on the roller conveyor, the cleaning device comprising:
[0007] A collection trough is provided below the roller conveyor along the extension direction of the roller conveyor to receive the slag. The bottom wall of the collection trough is provided with a plurality of slag discharge ports at intervals along the length of the collection trough.
[0008] The slag discharge mechanism includes multiple first slag discharge pipes, each of which corresponds to a multiple slag discharge ports, and the first end of each first slag discharge pipe is connected to the corresponding slag discharge port.
[0009] The flushing mechanism includes multiple nozzles, each of which is disposed between two adjacent slag discharge ports for flushing the slag into the first slag discharge pipe.
[0010] As an alternative to the cleaning device, the slag discharge mechanism also includes a collection bucket, the second ends of which are connected to the collection bucket for collecting the slag.
[0011] As an alternative to the cleaning device, the slag discharge mechanism also includes a slag discharge pump and a second slag discharge pipe. The first end of the second slag discharge pipe is connected to the collection bucket, and the second end of the second slag discharge pipe can be connected to the slag discharge ditch. The slag discharge pump is installed inside the collection bucket and is used to transport the slag material to the slag discharge ditch through the second slag discharge pipe.
[0012] As an alternative to the cleaning device, the slag discharge mechanism also includes a level gauge installed inside the collection tank to detect the liquid level of the slag.
[0013] As an alternative to the cleaning device, the flushing mechanism includes a main pipe and a plurality of first branch pipes. The main pipe is connected to the first end of the plurality of first branch pipes, and the plurality of first branch pipes correspond one-to-one with the plurality of nozzles. The second end of each first branch pipe is connected to the corresponding nozzle.
[0014] As an alternative to the cleaning device, the flushing mechanism also includes a first butterfly valve disposed on the main pipe and located upstream of the plurality of the first branch pipes.
[0015] As an alternative to the cleaning device, the flushing mechanism also includes a second branch pipe, the first end of which is connected to the main pipe and the second end of which is connected to the collection bucket.
[0016] As an alternative to the cleaning device, the flushing mechanism also includes a second butterfly valve, which is disposed on the second branch pipe.
[0017] As an alternative to the cleaning device, the collection tank includes two opposing sidewalls, both of which extend inclined inwards along the depth direction of the collection tank and form an obtuse angle with the bottom wall of the collection tank.
[0018] The bar and wire rod rolling equipment includes a heating furnace, a roller table, a rolling device, and a cleaning device. The outlet of the heating furnace is connected to the feed end of the roller table. The roller table is used to receive and transport the billet output from the heating furnace to the rolling device. The cleaning device is located below the roller table and is used to clean the slag that falls off the billet on the roller table.
[0019] Beneficial effects:
[0020] This utility model provides a cleaning device and bar and wire rod rolling equipment. The collecting trough is arranged along the extension direction of the roller conveyor and has multiple slag discharge ports on its bottom wall, which can fully collect slag and accurately locate the slag discharge point. The first slag discharge pipe of the slag discharge mechanism is connected to the slag discharge port to ensure that the slag is discharged quickly and avoids accumulation in the collecting trough. The nozzles of the flushing mechanism are respectively arranged between two adjacent slag discharge ports, which can flush the residual slag to the first slag discharge pipe, reducing the amount of manual cleaning while improving the efficiency and thoroughness of slag cleaning, ensuring the long-term stable operation of the roller conveyor, reducing equipment maintenance costs, significantly improving the cleanliness of the production environment, and enhancing the automation and safety of the production process.
[0021] This bar and wire rod rolling equipment integrates the heating furnace, roller conveyor, rolling device, and cleaning device in a well-organized manner, ensuring a continuous and efficient process for billet heating, conveying, and rolling. The cleaning device promptly removes material residue falling from the roller conveyor, preventing it from affecting equipment operation, reducing equipment wear and malfunctions, lowering maintenance costs, and improving production efficiency and finished product qualification rate. Attached Figure Description
[0022] Figure 1 This is a first schematic diagram of the cleaning device provided in an embodiment of the present utility model;
[0023] Figure 2 This is a second schematic diagram of the cleaning device provided in an embodiment of the present invention.
[0024] In the picture:
[0025] 100. Heating furnace;
[0026] 1. Collection tank; 11. Slag discharge port;
[0027] 2. Slag discharge mechanism; 21. First slag discharge pipe; 22. Collection bucket; 23. Second slag discharge pipe;
[0028] 3. Flushing mechanism; 31. Nozzle; 32. Main pipe; 33. First branch pipe; 34. First butterfly valve; 35. Second branch pipe; 36. Second butterfly valve. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0033] This embodiment provides a bar and wire rod rolling mill, which includes a heating furnace 100, a roller table (not shown), a rolling device (not shown), and a cleaning device. The outlet of the heating furnace 100 is connected to the feed end of the roller table. The roller table receives and transports the billet output from the heating furnace 100 to the rolling device. The cleaning device is located below the roller table and is used to clean the slag that falls off the billet on the roller table. This bar and wire rod rolling mill integrates the heating furnace 100, roller table, rolling device, and cleaning device in an orderly manner, ensuring a continuous and efficient process of billet heating, conveying, and rolling. The cleaning device promptly removes the slag that falls off the roller table, preventing slag from accumulating around the roller table and entering the roller table bearing housing, which would affect the operation of the bar and wire rod rolling mill, reduce wear and malfunctions of the bar and wire rod rolling mill, lower maintenance costs, and improve production efficiency and finished product qualification rate.
[0034] In this embodiment, steel is used as the billet. After being heated in the heating furnace 100, iron oxide (i.e., slag) forms on the surface of the steel. During the roller conveyor process, due to vibration, the iron oxide (slag) on the surface of the steel easily falls off and accumulates below the roller conveyor. It is worth noting that the heating furnace 100 and the rolling device are existing technologies, and their specific components and structures will not be described in detail here.
[0035] like Figure 1 and Figure 2 As shown, the cleaning device is used to clean the slag that falls off the billet on the roller conveyor. The cleaning device includes a collection tank 1, a slag discharge mechanism 2, and a flushing mechanism 3. The collection tank 1 is located below the roller conveyor along the extension direction of the roller conveyor and is used to collect the slag. The bottom wall of the collection tank 1 is provided with a plurality of slag discharge ports 11 at intervals along the length of the collection tank 1. The slag discharge mechanism 2 includes a plurality of first slag discharge pipes 21, which correspond one-to-one with the plurality of slag discharge ports 11. The first end of each first slag discharge pipe 21 is connected to the corresponding slag discharge port 11. The flushing mechanism 3 includes a plurality of nozzles 31, each nozzle 31 being located between two adjacent slag discharge ports 11 and used to flush the slag to the first slag discharge pipes 21.
[0036] The collecting trough 1 is set along the extension direction of the roller conveyor and has multiple slag discharge ports 11 on its bottom wall, which can fully receive the slag and accurately locate the slag discharge point; the first slag discharge pipe 21 of the slag discharge mechanism 2 is connected to the slag discharge port 11 to ensure that the slag is discharged quickly and avoids accumulation in the collecting trough 1; the nozzles 31 of the flushing mechanism 3 are respectively set between two adjacent slag discharge ports 11, which can flush the residual slag to the first slag discharge pipe 21, reduce the amount of manual cleaning, improve the efficiency and thoroughness of slag cleaning, ensure the long-term stable operation of the roller conveyor, reduce the maintenance cost of bar and wire rolling equipment, significantly improve the cleanliness of the production environment, and enhance the automation and safety of the production process.
[0037] like Figure 2 As shown, the collection tank 1 includes two opposing sidewalls, both of which extend inclined inwards along the depth direction of the collection tank 1 and form an obtuse angle with the bottom wall of the collection tank 1. The two inclined sidewalls guide the material residue falling from the roller conveyor to automatically slide and converge towards the bottom of the collection tank 1 under gravity, preventing material residue from accumulating on the sidewalls or the edge of the collection tank 1. Furthermore, the inclined sidewall design makes the bottom space of the collection tank 1 relatively concentrated, facilitating the thorough flushing of residual material residue by the nozzles 31 of the flushing mechanism 3 to the discharge port 11, reducing cleaning blind spots caused by material residue adhering to the dead corners of the sidewalls, and improving the cleaning effect. In this embodiment, the angle between the sidewall and the bottom wall can be 120 degrees, 135 degrees, or 150 degrees, etc., and is not specifically limited here. In other embodiments, both sidewalls of the collection tank 1 are perpendicular to the bottom wall, which can also achieve the collection of material residue and facilitate processing.
[0038] like Figure 1As shown, the slag discharge mechanism 2 also includes a collection bucket 22. The second ends of multiple first slag discharge pipes 21 are all connected to the collection bucket 22, which is used to collect slag. The collection bucket 22 centrally collects slag, effectively improving slag processing efficiency and management convenience. Each first slag discharge pipe 21 uniformly gathers the slag from the collection trough 1 below the roller conveyor into the collection bucket 22, realizing centralized and large-scale slag processing. The collection bucket 22 provides temporary storage space, which can buffer the slag discharge rhythm and ensure the continuity of the slag discharge process. Specifically, the second ends of multiple first slag discharge pipes 21 are connected to the top wall of the collection bucket 22.
[0039] like Figure 1 As shown, the slag discharge mechanism 2 also includes a slag discharge pump (not shown) and a second slag discharge pipe 23. The first end of the second slag discharge pipe 23 is connected to the collection bucket 22, and the second end of the second slag discharge pipe 23 can be connected to the slag discharge ditch. The slag discharge pump is installed inside the collection bucket 22 and is used to transport the slag material through the second slag discharge pipe 23 to the slag discharge ditch. As a power source, the slag discharge pump can overcome the gravity of the slag material and the resistance of the second slag discharge pipe 23, and force the iron oxide and other slag material accumulated in the collection bucket 22 to be transported to the slag discharge ditch. Compared with natural gravity slag discharge, this effectively solves the problem of blockage caused by the viscosity of the slag material and long-distance pipeline transportation. The second slag discharge pipe 23 connects the collection bucket 22 and the slag discharge ditch, realizing centralized discharge and unified treatment of the slag material, avoiding environmental pollution and inconvenience of cleaning caused by decentralized discharge. In addition, the combination of the slag discharge pump and the second slag discharge pipe 23 can flexibly adjust the slag discharge path and discharge position to adapt to different workshop layouts and environmental protection requirements, reduce the frequency of manual transfer, and reduce labor costs; through the automated slag discharge process, the downtime for cleaning of bar and wire rod rolling equipment is reduced, ensuring the continuous and efficient operation of the rolling production line and improving overall production efficiency.
[0040] The slag discharge mechanism 2 also includes a level gauge (not shown), which is installed inside the collection tank 22 to detect the liquid level of the slag. The level gauge monitors the liquid level of the slag in the collection tank 22 in real time, and accurately grasps the slag accumulation status through feedback data, avoiding blockage of the slag discharge pipe or pollution of the surrounding environment due to slag overflow. Based on the liquid level data, the slag discharge process can be automatically controlled. For example, when the liquid level reaches a preset threshold, the slag discharge pump and the second slag discharge pipe 23 are automatically started to unload the material, reducing the frequency of manual inspection and intervention and lowering labor costs.
[0041] like Figure 1As shown, the flushing mechanism 3 includes a main pipe 32 and multiple first branch pipes 33. The main pipe 32 is connected to the first end of the multiple first branch pipes 33. The multiple first branch pipes 33 correspond one-to-one with multiple nozzles 31. The second end of each first branch pipe 33 is connected to the corresponding nozzle 31. The main pipeline 32 serves as the fluid transmission hub, centrally distributing the flushing medium (such as water or compressed air). By diverting the flow to each first branch pipe 33, it ensures that multiple nozzles 31 operate synchronously, achieving comprehensive flushing of the entire collection tank 1. Each branch pipe corresponds one-to-one with a nozzle 31, allowing for precise placement of flushing points based on the structural characteristics of the collection tank 1 (such as the distribution of slag discharge ports 11 and areas prone to slag accumulation). This targeted flushing of slag to the slag discharge ports 11 avoids blind spots in cleaning. This distributed pipeline layout also reduces the fluid pressure load on a single branch pipe, minimizing the risk of pipe wear or leakage due to localized high pressure and extending the service life of the flushing system. Simultaneously, by adjusting the fluid flow rate and pressure of the main pipeline 32, the flushing intensity of each nozzle 31 can be flexibly controlled to adapt to the slag cleaning needs under different working conditions, significantly improving cleaning efficiency and automation levels, and ensuring the stability of the cleaning effect below the roller conveyor.
[0042] like Figure 1 As shown, the flushing mechanism 3 also includes a first butterfly valve 34, which is installed in the main pipeline 32 and located upstream of multiple first branch pipes 33. The first butterfly valve 34 can adjust the flow rate and pressure of the fluid (water, compressed air, etc.) in the main pipeline 32 in real time. By controlling the total amount of medium entering each first branch pipe 33, it can accurately match the cleaning needs of slag under different working conditions. For example, when the slag accumulation is small, the flushing intensity can be reduced to save energy, and when the accumulation is large, the flushing force can be increased to ensure the cleaning effect. At the same time, the valve can realize the rapid opening and closing of the flushing mechanism 3 to avoid medium leakage or waste during non-operation periods. When a first branch pipe 33 or nozzle 31 is blocked or malfunctions, the medium supply can be quickly cut off by closing the first butterfly valve 34, which is convenient for maintenance and repair without affecting the operation of other pipelines and improving system reliability. In addition, the setting of the first butterfly valve 34 can also help balance the pressure distribution between the branches, prevent the flushing effect of some nozzles 31 from weakening due to uneven flow, ensure the cleaning efficiency and uniformity of the entire collection tank 1, and extend the overall service life of the flushing mechanism 3.
[0043] like Figure 1As shown, the flushing mechanism 3 also includes a second branch pipe 35. The first end of the second branch pipe 35 is connected to the main pipe 32, and the second end of the second branch pipe 35 is connected to the collection tank 22. The second branch pipe 35 can directly introduce the flushing medium (such as water or compressed air) in the main pipe 32 into the collection tank 22. On the one hand, it can perform secondary flushing and stirring of the slag accumulated in the tank, preventing the slag from settling and caking, making the slag pumping out the slag smoother and reducing the risk of blockage. On the other hand, when there is little slag in the collection tank 22 or when the tank needs to be cleaned, the flushing medium can be used to rinse the inner wall of the tank, reducing the frequency of manual cleaning. In addition, the connection design between the second branch pipe 35 and the main pipe 32 can flexibly adjust the flow direction of the flushing medium. After the slag in the collection tank 1 is cleaned, the medium can be guided to the collection tank 22, realizing efficient use of resources, improving the coordination and automation of the entire slag discharge system, and ensuring the continuity and stability of the equipment cleaning and slag discharge process.
[0044] like Figure 1 As shown, the flushing mechanism 3 also includes a second butterfly valve 36, which is installed on the second branch pipe 35. This valve can autonomously control whether the flushing medium flows to the collection tank 22. When the slag in the collection tank 22 needs to be stirred to assist in slag discharge, or when the tank is being cleaned, opening the valve allows the flushing medium to be introduced in a directional manner. When there is no need to operate on the collection tank 22, closing the valve can avoid media waste and prevent slag or impurities in the collection tank 22 from flowing back into the main pipe 32, causing pipe blockage or damage to the nozzle 31. In addition, the second butterfly valve 36 works in conjunction with the first butterfly valve 34 on the main pipe 32 to flexibly allocate the medium flow rate according to different working conditions (such as the amount of slag accumulation and slag discharge requirements), realizing differentiated flushing management between the collection tank 1 and the collection tank 22, improving cleaning efficiency while reducing energy consumption, and effectively ensuring the stability and reliability of the entire flushing and slag discharge system.
[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A cleaning device for cleaning material residue that falls off the billet on the roller conveyor, characterized in that, The cleaning device includes: A collection trough (1) is provided below the roller conveyor along the extension direction of the roller conveyor and is used to receive the slag. The bottom wall of the collection trough (1) is provided with a plurality of slag discharge ports (11) at intervals along the length direction of the collection trough (1). The slag discharge mechanism (2) includes a plurality of first slag discharge pipes (21), each of the plurality of first slag discharge pipes (21) and a plurality of slag discharge ports (11) corresponding to each other, and the first end of each first slag discharge pipe (21) is connected to the corresponding slag discharge port (11); The flushing mechanism (3) includes multiple nozzles (31), each nozzle (31) being disposed between two adjacent slag discharge ports (11) for flushing the slag to the first slag discharge pipe (21).
2. The cleaning device according to claim 1, characterized in that, The slag discharge mechanism (2) also includes a collection bucket (22), and the second ends of the plurality of first slag discharge pipes (21) are connected to the collection bucket (22), which is used to collect the slag.
3. The cleaning device according to claim 2, characterized in that, The slag discharge mechanism (2) further includes a slag discharge pump and a second slag discharge pipe (23). The first end of the second slag discharge pipe (23) is connected to the collection bucket (22), and the second end of the second slag discharge pipe (23) can be connected to the slag discharge ditch. The slag discharge pump is installed in the collection bucket (22) and is used to transport the slag material to the slag discharge ditch through the second slag discharge pipe (23).
4. The cleaning device according to claim 2, characterized in that, The slag discharge mechanism (2) also includes a level gauge, which is installed in the collection tank (22) and is used to detect the liquid level of the slag.
5. The cleaning device according to claim 2, characterized in that, The flushing mechanism (3) includes a main pipe (32) and a plurality of first branch pipes (33). The main pipe (32) is connected to the first end of the plurality of first branch pipes (33). The plurality of first branch pipes (33) correspond one-to-one with the plurality of nozzles (31). The second end of each first branch pipe (33) is connected to the corresponding nozzle (31).
6. The cleaning device according to claim 5, characterized in that, The flushing mechanism (3) further includes a first butterfly valve (34), which is disposed on the main pipe (32) and located upstream of the plurality of first branch pipes (33).
7. The cleaning device according to claim 5, characterized in that, The flushing mechanism (3) also includes a second branch pipe (35), the first end of which is connected to the main pipe (32), and the second end of which is connected to the collection bucket (22).
8. The cleaning device according to claim 7, characterized in that, The flushing mechanism (3) further includes a second butterfly valve (36), which is disposed on the second branch pipe (35).
9. The cleaning apparatus according to any one of claims 1-8, characterized in that, The collection trough (1) includes two opposing sidewalls, both of which extend inclinedly toward the inside of the collection trough (1) along the depth direction of the collection trough (1) and are at an obtuse angle to the bottom wall of the collection trough (1).
10. A bar and wire rod rolling mill, characterized in that, The device includes a heating furnace (100), a roller conveyor, a rolling device, and a cleaning device as described in any one of claims 1-9. The outlet of the heating furnace (100) is connected to the feed end of the roller conveyor. The roller conveyor is used to receive and transport the billet output from the heating furnace (100) to the rolling device. The cleaning device is located below the roller conveyor and is used to clean the slag that falls off the billet on the roller conveyor.