A billet oxide layer cleaning device and a billet oxide layer cleaning method

Abstract

Embodiments of the present application provide a billet oxide layer cleaning device and a billet oxide layer cleaning method, and relate to the field of billet production. The billet oxide layer cleaning device comprises a conveying line, a cleaning roller, a driving member and a temperature sensor; wherein the conveying line is used for conveying the billet, the cleaning roller is arranged on the upper side of the billet and is connected to the driving member, the temperature sensor is used for outputting temperature information of the billet and communicating with the driving member, and the driving member is used for driving the cleaning roller to approach the billet and frictionally cooperate with the billet when the billet is below a preset temperature. In the working process, when the temperature sensor detects that the billet is below the preset temperature, the driving member can drive the cleaning roller to approach the billet, and the oxide layer on the surface of the billet is cleaned through the friction between the cleaning roller and the billet, thereby reducing the slag accumulation in the furnace, avoiding affecting the heat conduction, slowing down the heating energy consumption, reducing the slag cleaning frequency and the labor intensity of the workers, and improving the operation efficiency and service life of the heating furnace.

Description

Technical Field

[0001] This invention relates to the field of steel billet production, and more specifically, to a steel billet oxide layer cleaning device and a steel billet oxide layer cleaning method. Background Technology

[0002] During the production process, before the steel billet enters the heating furnace, there is a lot of oxide layer on its surface. After entering the heating furnace, the oxide layer detaches from the steel billet, causing slag to accumulate in the furnace, affecting heat conduction, thereby increasing heating energy consumption. It also increases the frequency of slag cleaning, thus increasing the labor intensity of the workers, and negatively impacting the operating efficiency and service life of the heating furnace. Summary of the Invention

[0003] This invention provides a billet oxide layer cleaning device and a billet oxide layer cleaning method, which can perform oxide layer cleaning operations on billets before they enter the heating furnace, thereby reducing slag accumulation in the furnace, avoiding affecting heat conduction, slowing down the increase in heating energy consumption, reducing the frequency of slag cleaning and the labor intensity of workers, and improving the operating efficiency and service life of the heating furnace.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] An embodiment of the present invention provides a steel billet oxide layer cleaning device, which includes:

[0006] Conveyor line, cleaning roller, drive unit, and temperature sensor;

[0007] The conveyor line is used to transport steel billets. The cleaning roller is disposed on the upper side of the steel billet and connected to the drive unit. The temperature sensor is used to output temperature information of the steel billet and communicate with the drive unit. The drive unit is used to drive the cleaning roller to approach the steel billet and engage with the steel billet in friction when the steel billet is below a preset temperature.

[0008] Optionally, the cleaning roller includes a roller body and a brush body. The roller body is connected to the drive member, and the brush body is arranged circumferentially along the roller body. The brush body is used to hold the steel billet against the steel billet when the steel billet reaches a preset temperature.

[0009] Optionally, the intrusion amount of the brush body when it is held against the steel billet is H, where 5mm ≤ H ≤ 10mm.

[0010] Optionally, the billet oxide layer cleaning device further includes a position sensor, which is used to output position information of the brush body relative to the billet and communicate with the drive component.

[0011] Optionally, the bottom end of the cleaning roller rotates in the opposite direction to the conveying direction of the steel billet.

[0012] Optionally, the linear velocity of the cleaning roller is V1, and the conveying speed of the billet is V2, wherein 2V2≤V1≤3V2.

[0013] Optionally, the billet oxide layer cleaning device further includes a thickness sensor, which is used to output information describing the thickness of the billet and communicate with the drive component.

[0014] Optionally, the conveyor line includes a friction roller and a conveying roller, the conveying roller and the friction roller being spaced apart, the conveying roller being used to transport the steel billet, and the outer diameter of the friction roller being larger than the outer diameter of the conveying roller.

[0015] Optionally, the outer diameter of the friction roller is D1, and the outer diameter of the conveying roller is D2, wherein 5mm≤D1-D2≤10mm.

[0016] An embodiment of the present invention also provides a method for cleaning the oxide layer of a steel billet, implemented by the aforementioned steel billet oxide layer cleaning device, the method comprising:

[0017] Control the conveyor line to transport the steel billet;

[0018] The temperature sensor is controlled to acquire the temperature of the steel billet;

[0019] When the steel billet is below the preset temperature, the driving component is controlled to drive the cleaning roller to approach and rub the steel billet;

[0020] When the steel billet is at a temperature higher than the preset temperature, the driving component is controlled to move the cleaning roller at a distance from the steel billet.

[0021] The beneficial effects of the billet oxide layer cleaning device and method according to embodiments of the present invention include, for example:

[0022] This billet oxide layer cleaning device includes a conveyor line, a cleaning roller, a drive unit, and a temperature sensor. The conveyor line transports the billet, the cleaning roller is positioned above the billet and connected to the drive unit, the temperature sensor outputs temperature information about the billet and communicates with the drive unit, and the drive unit moves the cleaning roller closer to the billet and engages it in frictional contact when the billet's temperature is below a preset level. During operation, the conveyor line transports the billet to the heating furnace. When the temperature sensor detects that the billet's temperature is below the preset level, the drive unit moves the cleaning roller closer to the billet, and the friction between the roller and the billet cleans the oxide layer on the billet's surface, thereby reducing slag accumulation in the furnace, preventing impaired heat conduction, slowing down the increase in heating energy consumption, reducing the frequency of slag removal and the labor intensity of workers, and improving the operating efficiency and service life of the heating furnace. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the steel billet oxide layer cleaning device provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the cleaning roller provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic flowchart of a method for cleaning the oxide layer of a steel billet provided in an embodiment of the present invention.

[0027] Icons: 100-Steel billet oxide layer cleaning device; 110-Conveyor line; 111-Conveyor roller; 112-Friction roller; 120-Cleaning roller; 121-Roller body; 122-Brush body; 130-Driver; 140-Temperature sensor; 150-Position sensor; 160-Thickness sensor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0036] Please refer to Figure 1 and Figure 3 The billet oxide layer cleaning device 100 and billet oxide layer cleaning method provided in the embodiments of the present invention can solve the above problems, and will be described in detail below.

[0037] refer to Figure 1 The billet oxide layer cleaning device 100 includes a conveyor line 110, a cleaning roller 120, a drive unit 130, and a temperature sensor 140. The conveyor line 110 is used to transport the billet. The cleaning roller 120 is disposed on the upper side of the billet and connected to the drive unit 130. The temperature sensor 140 is used to output temperature information of the billet and communicate with the drive unit 130. The drive unit 130 is used to drive the cleaning roller 120 to approach the billet and engage in friction with the billet when the billet temperature is lower than a preset temperature.

[0038] During operation, the conveyor line 110 transports the steel billet to the heating furnace. When the temperature sensor 140 detects that the steel billet is below the preset temperature, the drive unit 130 can drive the cleaning roller 120 to approach the steel billet and clean the oxide layer on the surface of the steel billet through friction with the steel billet, thereby reducing slag accumulation in the furnace, avoiding affecting heat conduction, slowing down the increase in heating energy consumption, reducing the frequency of slag cleaning and the labor intensity of the workers, and improving the operating efficiency and service life of the heating furnace.

[0039] It is worth noting that the cleaning roller is located on the upper side of the billet and is mainly used to clean the oxide layer on the upper surface of the billet. Furthermore, the preset temperature refers to 300℃. If the billet temperature exceeds this, and the cleaning roller 120 performs the cleaning operation first, a new oxide layer will still form on the billet after cleaning. Therefore, when the billet exceeds the preset temperature, the cleaning roller 120 can be positioned separately from the billet to avoid performing oxide layer cleaning.

[0040] refer to Figure 1 In order to clean the oxide layer on the lower surface of the steel billet, the conveyor line 110 can include a friction roller 112 and a conveyor roller 111. The conveyor roller 111 and the friction roller 112 are spaced apart. The conveyor roller 111 is used to transport the steel billet. The outer diameter of the friction roller 112 is larger than the outer diameter of the conveyor roller 111.

[0041] That is, the conveying roller 111 drives the steel billet toward the heating furnace by friction with the steel billet. The friction roller 112 has a larger outer diameter than the conveying roller 111. When it contacts the lower surface of the steel billet, it can provide a stronger squeezing force on the lower surface of the steel billet, thereby achieving the cleaning operation of the oxide layer on the lower surface of the steel billet.

[0042] Specifically, the outer diameter of the friction roller 112 is D1, and the outer diameter of the conveying roller 111 is D2, wherein 5mm ≤ D1 - D2 ≤ 10mm. Furthermore, ΔD = D1 - D2 = 5mm, or ΔD = D1 - D2 = 6mm, ΔD = D1 - D2 = 7mm, ΔD = D1 - D2 = 8mm, ΔD = D1 - D2 = 9mm, ΔD = D1 - D2 = 10mm; the specific value of ΔD is not limited.

[0043] refer to Figure 1 and Figure 2 The cleaning roller 120 includes a roller body 121 and a brush body 122. The roller body 121 is connected to the drive member 130. The brush body 122 is arranged along the circumference of the roller body 121 and is used to hold the steel billet against the steel billet when the steel billet reaches the preset temperature.

[0044] Specifically, the brush body 122 can be composed of multiple brush strips with a certain degree of elasticity. The multiple brush strips are densely arranged along the circumference and axial direction of the roller body 121. When the roller body 121 moves toward the steel billet under the action of the drive member 130, the multiple brush strips will contact the steel billet and generate friction, thereby realizing the cleaning operation of the oxide layer.

[0045] Furthermore, in order to ensure the cleaning effect on the oxide layer and avoid over-cleaning the steel billet, the intrusion amount of the brush body 122 against the steel billet can be H, where 5mm≤H≤10mm, and H=5mm, H=6mm, H=7mm, H=8mm, H=9mm, H=10mm, etc. The specific value of H is not limited.

[0046] refer to Figure 1 The billet oxide layer cleaning device 100 also includes a position sensor 150, which is used to output information describing the position of the brush body 122 relative to the billet and communicate with the drive unit 130. That is, whether the brush body 122 is in position when it contacts the billet can be detected by the position sensor 150.

[0047] In this embodiment, the number of position sensors 150 can be two, and the two position sensors 150 are arranged at intervals. Of course, in other embodiments of the present invention, the number of position sensors 150 can also be one, three, five, eight, etc., and the specific number of position sensors 150 is not limited.

[0048] refer to Figure 1 To increase the contact force between the brush body 122 and the oxide layer, the bottom end of the cleaning roller 120 can be rotated in the opposite direction to the billet conveying direction. That is, the bottom end of the roller body 121 rotates in the opposite direction to the billet conveying direction, and when the brush body 122 rotates with the roller body 121 to the bottom position of the roller body 121 and rubs against the conveying of the billet, the relative movement direction of the brush body 122 and the oxide layer is opposite, thereby generating greater friction and collision to ensure thorough cleaning of the oxide layer.

[0049] Specifically, the linear speed of the cleaning roller 120 is V1, and the conveying speed of the steel billet is V2, wherein 2V2≤V1≤3V2, and V1=2V2, V1=2.2V2, V1=2.4.V2, V1=2.5V2, V1=2.6V2, V1=2.8V2, V1=3V2. The specific ratio of V1 and V2 is not limited.

[0050] Furthermore, when the billet temperature exceeds the preset temperature (i.e., 300℃), if the brush body 122 comes into contact with the billet's oxide layer, not only will the cleaning effect be limited, but it will also easily damage the brush body 122. To reduce the slag buildup caused by the oxide layer entering the heating furnace, the drive component 130 can move the brush body 122 away from the billet, while the roller body 121 can continue to rotate, causing the brush body 122 to rotate in the opposite direction to the billet's conveying direction. As the brush body 122 rotates with the roller body 121, its structure, similar to a fan blade, can generate a certain reverse airflow on the billet, thereby blowing away any residue, dust, and impurities that may be present on the billet's surface. Even when the billet exceeds the preset temperature, the roller body 121 can still drive the brush body 122 to rotate, generating a certain airflow to achieve a cleaning effect.

[0051] In addition to the oxide layer on the surface of the steel billet, there may also be an oxide layer on its sides. This allows the width of the roller body 121 on the cleaning roller 120 to be wider than the width of the steel billet, and the length of the brush bodies 122 located on both sides of the roller body 121 to be longer than the length of the brush body 122 located in the middle, so that the brush bodies 122 located on both sides can perform cleaning operations on the oxide layer located on both sides. When the temperature of the steel billet is higher than the preset temperature, and the brush bodies 122 do not directly contact the steel billet, the brush bodies located on both sides can also generate reverse airflow on both sides of the steel billet to blow away the residue, dust and impurities located on both sides of the steel billet. Because the residue, dust and impurities on the sides are subject to limited support, the reverse airflow combined with the influence of gravity makes it easier for the residue, dust and impurities on the sides to detach from the steel billet, thereby preventing them from entering the heating furnace with the steel billet and thus reducing the accumulation of slag.

[0052] Optionally, the billet oxide layer cleaning device 100 also includes a thickness sensor 160, which is used to output information describing the thickness of the billet and communicate with the drive unit 130.

[0053] Existing steel billets are usually of different thicknesses. When the thickness of the steel billet is different, the moving displacement of the cleaning roller 120 driven by the drive component 130 is also different. By enabling the thickness sensor 160 to communicate with the drive component 130, the drive component 130 can drive the cleaning roller 120 to the appropriate position according to the real-time thickness of the steel billet.

[0054] An embodiment of the present invention also provides a method for cleaning the oxide layer of a steel billet, implemented by a steel billet oxide layer cleaning device 100, the method comprising:

[0055] Step S100: Control the conveyor line 110 to transport the steel billet;

[0056] Step S200: Control the temperature sensor 140 to obtain the temperature of the steel billet;

[0057] Step S300: When the steel billet is below the preset temperature, control the drive component 130 to drive the cleaning roller 120 to approach and rub the steel billet;

[0058] Alternatively, step S300 may further include: when the billet temperature is higher than a preset temperature, controlling the drive component 130 to drive the cleaning roller 120 to be spaced apart from the billet. When the cleaning roller 120 is spaced apart from the billet, the cleaning roller 120 can still rotate in the opposite direction relative to the billet, thereby generating a reverse airflow to blow away the residue, dust and impurities remaining on the upper surface and oxide layer of the billet.

[0059] In summary, the billet oxide layer cleaning apparatus 100 and billet oxide layer cleaning method provided by the embodiments of the present invention have at least the following advantages:

[0060] (1) When the temperature sensor 140 detects that the billet is below the preset temperature, the drive component 130 can drive the cleaning roller 120 to approach the billet and clean the oxide layer on the surface of the billet through friction between the roller and the billet, thereby reducing the slag accumulation in the furnace, avoiding affecting heat conduction, slowing down the increase in heating energy consumption, thereby reducing the frequency of slag cleaning and the labor intensity of the workers, and improving the operating efficiency and service life of the heating furnace.

[0061] (2) When the temperature sensor 140 detects that the billet is higher than the preset temperature, the roller 121 can continue to rotate, causing the brush 122 to rotate in the opposite direction to the billet conveying direction. As the brush 122 rotates with the roller 121, it has a fan blade structure similar to a fan, which can generate a certain reverse airflow on the billet, thereby blowing away any residues, dust and impurities that may exist on the upper surface of the billet.

[0062] (3) It can make the width of the roller body 121 on the cleaning roller 120 wider than the width of the billet, and the length of the brush body 122 on both sides of the roller body 121 is longer than the length of the brush body 122 in the middle position; when the billet temperature is lower than the preset temperature, the brush body 122 on both sides can clean the oxide layer on both sides; when the billet temperature is higher than the preset temperature, the brush body on both sides can also generate reverse airflow on both sides of the billet, which, together with the gravity of the residue, dust and impurities on the side, makes it easier for the residue, dust and impurities on the side to detach from the billet, thereby avoiding entering the heating furnace with the billet.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for cleaning the oxide layer of steel billets, characterized in that, include: Conveyor line (110), cleaning roller (120), drive unit (130) and temperature sensor (140); The conveyor line (110) is used to transport the steel billet. The cleaning roller (120) is disposed on the upper side of the steel billet and connected to the drive unit (130). The temperature sensor (140) is used to output temperature information of the steel billet and communicate with the drive unit (130). The drive unit (130) is used to drive the cleaning roller (120) to approach the steel billet and rub against the steel billet when the steel billet is below the preset temperature. It is also used to drive the cleaning roller (120) to be spaced apart from the steel billet when the steel billet is above the preset temperature, and to make the cleaning roller (120) rotate continuously, thereby generating airflow to blow away the residue and dust on the surface of the steel billet.

2. The billet oxide layer cleaning device according to claim 1, characterized in that, The cleaning roller (120) includes a roller body (121) and a brush body (122). The roller body (121) is connected to the drive member (130). The brush body (122) is arranged circumferentially along the roller body (121). The brush body (122) is used to hold the steel billet against the steel billet when the steel billet is below a preset temperature.

3. The billet oxide layer cleaning device according to claim 2, characterized in that, The amount of intrusion of the brush body (122) against the steel billet is H, where 5mm≤H≤10mm.

4. The billet oxide layer cleaning device according to claim 3, characterized in that, The billet oxide layer cleaning device further includes a position sensor (150), which is used to output position information of the brush body (122) relative to the billet and communicate with the drive unit (130).

5. The billet oxide layer cleaning device according to any one of claims 1-4, characterized in that, The bottom end of the cleaning roller (120) rotates in the opposite direction to the conveying direction of the steel billet.

6. The billet oxide layer cleaning device according to claim 5, characterized in that, The linear velocity of the cleaning roller (120) is V1, and the conveying speed of the billet is V2, wherein 2V2≤V1≤3V2.

7. The billet oxide layer cleaning device according to any one of claims 1-4, characterized in that, The billet oxide layer cleaning device also includes a thickness sensor (160), which is used to output information describing the thickness of the billet and communicate with the drive unit (130).

8. The billet oxide layer cleaning device according to any one of claims 1-4, characterized in that, The conveyor line (110) includes a friction roller (112) and a conveyor roller (111). The conveyor roller (111) and the friction roller (112) are spaced apart. The conveyor roller (111) is used to transport the steel billet. The outer diameter of the friction roller (112) is larger than the outer diameter of the conveyor roller (111).

9. The billet oxide layer cleaning device according to claim 8, characterized in that, The outer diameter of the friction roller (112) is D1, and the outer diameter of the conveying roller (111) is D2, wherein 5mm≤D1-D2≤10mm.

10. A method for cleaning the oxide layer of a steel billet, characterized in that, The billet oxide layer cleaning device according to any one of claims 1-9 is used to achieve the billet oxide layer cleaning method, which includes: Control the conveyor line (110) to transport the steel billet; The temperature sensor (140) is controlled to acquire the temperature of the steel billet; When the steel billet is below the preset temperature, the drive unit (130) is controlled to drive the cleaning roller (120) to approach and rub the steel billet; When the steel billet is above the preset temperature, the drive unit (130) is controlled to drive the cleaning roller (120) to be spaced apart from the steel billet, and the cleaning roller (120) is made to rotate continuously, thereby generating airflow to blow away the residue and dust on the surface of the steel billet.

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