Equipment, system and method for detecting refractory material of annealing furnace

Abstract

The invention provides equipment, a system and a method for detecting a refractory material of an annealing furnace. The detection equipment comprises a base plate; the stand column is installed on the base plate and located on one side of the base plate. The stand column is sleeved with the baffle. The proximity switch is located on the other side of the base plate, and one end of the proximity switch is aligned with one end of the baffle. When the other end of the baffle plate is in contact with a refractory material of the annealing furnace, the baffle plate can rotate along the upright post, the relative position between one end of the baffle plate and the proximity switch is changed, the proximity switch generates a first electric signal, and the first electric signal is used for representing that the refractory material has a bulge; therefore, whether the refractory material has the bulge or not can be accurately detected by utilizing the detection equipment, and if the bulge exists, a worker can repair the bulge in time, so that the operation stability of the annealing furnace is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature furnace equipment detection, and in particular to a detection device, system and method for annealing furnace refractory materials. Background Art

[0002] High-temperature annealing furnace is an important equipment for smelting oriented silicon steel. After annealing treatment in a high-temperature annealing furnace, oriented silicon steel can improve its magnetic properties so that it can be better used in power electronics, machinery manufacturing, aerospace and other fields.

[0003] To ensure the load-bearing and wear-resistant requirements of high-temperature annealing furnaces, multiple layers of refractory material are typically used. However, as refractory materials crack during use, impurities such as sealing sand and MgO powder can fall into these cracks, causing them to expand further. Furthermore, due to the thermal expansion and contraction characteristics of refractory materials, these cracks cannot be fully reset after cooling, resulting in bulges in the refractory material.

[0004] However, it is difficult for staff to detect protruding refractory materials. When refractory materials are out of place, they may cause collision damage to heaters, thermocouples and other equipment on the furnace shell during the rotation of the annealing furnace. If the refractory material falls out in its entirety and falls between the furnace shell and the upper trolley, it may cause the trolley to become stuck during rotation. In severe cases, the furnace shell may even be squeezed and deformed by the refractory material. In addition, if the refractory material is squeezed and crushed and then falls into the water seal groove at the bottom, it may cause the water seal groove to become clogged, and water may overflow and flow onto the electrical equipment at the bottom of the furnace, which may easily cause the electrical equipment to short-circuit and lead to production and furnace shutdown.

[0005] Therefore, there is an urgent need for a detection device for annealing furnace refractory materials to solve the above technical problems. Summary of the Invention

[0006] In response to the problems existing in the prior art, the embodiments of the present invention provide a detection device, system and method for refractory materials of an annealing furnace to solve or partially solve the technical problem in the prior art that it is impossible to accurately detect whether there are protrusions in the refractory materials of the annealing furnace, thereby affecting the operational stability of the annealing furnace.

[0007] A first aspect of the present invention provides a detection device for refractory materials of an annealing furnace, wherein the detection device is placed on one side of the annealing furnace and comprises:

[0008] substrate;

[0009] A column is installed on the base plate, and the column is located on one side of the base plate;

[0010] a baffle, sleeved on the column;

[0011] A proximity switch is located on the other side of the substrate, and one end of the proximity switch is aligned with one end of the baffle; wherein,

[0012] When the other end of the baffle touches the refractory material of the annealing furnace, the baffle can rotate along the column, and the relative position between one end of the baffle and the proximity switch changes, and the proximity switch generates a first electrical signal, which is used to indicate the presence of a protrusion in the refractory material.

[0013] In the above solution, the baffle includes: a first baffle, a second baffle and a sleeve;

[0014] The first baffle is connected to one side of the sleeve;

[0015] The second baffle is connected to the other side of the sleeve;

[0016] The sleeve is sleeved on the column.

[0017] In the above solution, the detection device further comprises: a reset component and a vertical plate;

[0018] The vertical plate is installed on the base plate;

[0019] One end of the reset component is connected to the other end of the baffle, and the other end of the reset component is connected to the vertical plate; the reset component is used to reset the baffle to its initial position after the relative position between the other end of the baffle and the proximity switch changes.

[0020] In the above solution, the detection device further includes:

[0021] The bracket is mounted on the other side of the substrate, and an annular fixing component is provided above the bracket; wherein,

[0022] The proximity switch is placed in the annular fixing component.

[0023] In the above solution, the detection device further includes: a limiting column;

[0024] The limiting column is installed on one side of the base plate, and the limiting column is used to limit the moving distance of the first baffle.

[0025] In the above solution, the reset component includes: a spring.

[0026] A second aspect of the present invention provides a detection system for refractory materials in an annealing furnace, the system comprising: a controller and the detection device described in any one of the first aspects;

[0027] The detection device is placed on one side of the annealing furnace, and is used to generate a first electrical signal if a protrusion is detected in the refractory material in the annealing furnace during the rotation of the annealing furnace;

[0028] The controller is used to trigger an audible and visual alarm signal according to the first electrical signal.

[0029] In the above solution, the system further comprises: an image acquisition device and a host computer;

[0030] The image acquisition device is installed on one side of the detection device, and is used to acquire images of refractory materials located near the detection device; accordingly,

[0031] The controller is further configured to, upon receiving the first electrical signal, switch the image of the refractory material to the display screen of the host computer.

[0032] In the above solution, the annealing furnace includes: an upper trolley and a lower trolley;

[0033] The lower trolley is used to provide support for the upper trolley and drive the annealing furnace to rotate;

[0034] The upper trolley is used to provide an entrance for the steel coil to enter the annealing furnace; wherein,

[0035] The entrance of the upper trolley is adjacent to a preset open base, and the steel coil can enter the annealing furnace from the open base through the entrance of the upper trolley; the detection equipment is installed on one side of the open base.

[0036] A third aspect of the present invention provides a method for detecting refractory materials in an annealing furnace, the method comprising:

[0037] Using a detection device to detect the refractory material of the annealing furnace, if it is determined that the refractory material has a protrusion, a first electrical signal is generated;

[0038] A controller is used to trigger an audible and visual alarm signal according to the first electrical signal.

[0039] The present invention provides a detection device, system and method for refractory materials of an annealing furnace, wherein the detection device is placed on one side of the annealing furnace, and comprises: a base plate; a column mounted on the base plate, the column being located on one side of the base plate; a baffle sleeved on the column; a proximity switch located on the other side of the base plate, one end of the proximity switch being aligned with one end of the baffle; wherein, when the other end of the baffle touches the refractory material of the annealing furnace, the baffle can rotate along the column, and the relative position between one end of the baffle and the proximity switch changes, and the proximity switch generates a first electrical signal accordingly, and the first The electrical signal is used to characterize the presence of a protrusion on the refractory material; in this way, when a protrusion exists on the refractory material on the annealing furnace, as the annealing furnace rotates, the refractory material will touch one end of the baffle, and one end of the baffle will rotate along the column, thereby causing the position of the other end of the baffle to change; when the position of the other end of the baffle changes, the relative position between the other end of the baffle and the proximity switch will change, and then the proximity switch will generate a first electrical signal, and at this time the first electrical signal can characterize the presence of a protrusion on the refractory material; in this way, the detection equipment can be used to accurately detect whether there is a protrusion on the refractory material. If so, the staff can repair the protrusion in time to improve the stability of the annealing furnace operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0041] Figure 1 Shown is a schematic structural diagram of an annealing furnace according to an embodiment of the present invention;

[0042] Figure 2 A schematic structural diagram of a detection system for refractory materials of an annealing furnace according to an embodiment of the present invention is shown;

[0043] Figure 3 A schematic structural diagram of a detection device for refractory materials of an annealing furnace according to an embodiment of the present invention is shown;

[0044] Figure 4 Another structural schematic diagram of a detection system for refractory materials of an annealing furnace according to an embodiment of the present invention is shown;

[0045] Figure 5 A schematic flow chart of a method for detecting refractory materials of an annealing furnace according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0046] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0047] In order to better understand the technical solution of the present invention, the structure of the annealing furnace is first introduced here. Figure 1 As shown, the annealing furnace of the present invention is an intermittent rotary annular furnace, which mainly includes: an upper trolley 11 and a lower trolley ( Figure 1 not shown);

[0048] The lower trolley is used to provide support for the upper trolley 11 and drive the annealing furnace to rotate;

[0049] The upper trolley is used to provide an entrance for the steel coils to enter the annealing furnace;

[0050] The entrance of the upper trolley is adjacent to the preset open base, and the steel coil can enter the annealing furnace from the open base through the entrance of the upper trolley 11.

[0051] The upper trolley is generally composed of steel structure, castable and refractory materials to ensure that the high temperature environment in the furnace can be maintained and the stability of the annealing furnace can be ensured.

[0052] Specifically, the lower trolley is provided with a driving mechanism for driving itself and the upper trolley 11 to rotate. Figure 1 The upper trolley 11 consists of 50 zones, each with a different temperature. After the steel coil enters the upper trolley 11, it needs to stay in each zone for a preset period of time. When the steel coil needs to be transferred from one zone to another, the annealing furnace rotates to move the steel coil from one zone to another.

[0053] In order to facilitate the steel coil to enter the upper trolley 11, an entrance is pre-opened on the upper trolley 11 ( Figure 1 1 zone and 47-50 zones), the entrance of the upper trolley 11 is adjacent to the open base 12, and the steel coil can enter the annealing furnace from the open base 12 through the entrance of the upper trolley 11.

[0054] refer to Figure 1 The annealing furnace further includes: a water seal groove 13 located below the upper trolley 11 , and a radius of the water seal groove 13 is greater than a radius of the upper trolley 11 .

[0055] In order to detect whether there are protrusions in the annealing furnace refractory materials (all located on the upper trolley 11), the present invention provides an annealing furnace refractory material detection device 14, such as Figure 1As shown, the detection device 14 is installed on one side of the open base 12 and is aligned with the edge area (such as area 47) of the open area of ​​the upper trolley 11 to facilitate rapid locking of the position of the protrusion.

[0056] For example, reference Figure 2 During the rotation of the annealing furnace, when the detection device 14 determines that there is a protrusion on the refractory material 15, the protrusion on the refractory material 15 must be near the location of the detection device 14. Since the steel coil will stay in an area for 3 hours after moving to the area, the staff can check the refractory material in the area near the location of the detection device 14 within 3 hours, and then quickly locate the location of the protrusion.

[0057] Furthermore, if Figure 3 As shown, the detection device 14 includes: a base plate 1, a column 2, a baffle, and a proximity switch 3; wherein,

[0058] The column 2 is installed on the base plate 1, and the column is located on one side of the base plate 1;

[0059] The baffle is sleeved on the column 2;

[0060] The proximity switch 3 is located on the other side of the substrate 1 , and one end of the proximity switch 3 is aligned with one end of the baffle.

[0061] The baffle includes: a first baffle 41, a second baffle 42 and a sleeve 43;

[0062] The first baffle 41 is connected to one side of the sleeve 43;

[0063] The second baffle 42 is connected to the other side of the sleeve;

[0064] The sleeve 43 is sleeved on the column 2 .

[0065] One end of the first baffle 41 can be connected to one side of the sleeve 43 by welding, and the other end of the first baffle 41 is close to the annealing furnace side; the other end of the second baffle 42 can be connected to the other side of the sleeve 43 by welding, and one end of the second baffle 42 is aligned with the proximity switch 3 (when the second baffle 42 is in the initial position, the angle between the horizontal axis of the second baffle 42 and the horizontal axis of the proximity switch 3 is 0, and there is a preset distance between one end of the second baffle 42 and the proximity switch 3).

[0066] The detection device 14 further includes: a bracket 4 installed on the other side of the substrate 1 , and an annular fixing component 5 is provided on the bracket; wherein the proximity switch 3 is placed in the annular fixing component 5 .

[0067] In order to prevent the first baffle 41 from moving too far after being touched by the protrusion of the refractory material, thereby affecting the detection of the next protrusion, refer to Figure 3The detection device 14 further includes a limiting post 6, which is mounted on one side of the base plate 1 and is used to limit the distance of movement of the first stopper 41. The limiting post 6 is located on one side of the column 2, and there is a preset distance between the limiting post 6 and the column 2.

[0068] Furthermore, in order to quickly return the first baffle 41 and the second baffle 42 to their respective initial positions, the detection device 14 further includes: a reset component 7 and a vertical plate 8;

[0069] The vertical plate 8 is installed on the base plate 1;

[0070] One end of the reset component 7 is connected to the other end of the baffle (the other end of the second baffle 42), and the other end of the reset component 7 is connected to the vertical plate 8; the reset component 7 is used to reset the baffle to its initial position after the relative position between the other end of the baffle and the proximity switch 3 changes.

[0071] It is understood that when the relative position between the second baffle 42 and the proximity switch 3 changes, in order not to delay the subsequent detection of the protrusion of the refractory material, the reset component 7 can use elastic force to pull the second baffle 42 back to the initial position. The reset component 7 can be a spring.

[0072] Thus, when the sleeve 43 is mounted on the column 2, in actual operation, the first baffle 41 acts as a detection baffle, the first baffle 41 being closer to the annealing furnace side, and the second baffle 42 acting as a signal baffle, the second baffle 42 being farther away from the annealing furnace side. If there is a protrusion in the refractory material, during the rotation of the annealing furnace, the other end of the baffle (the other end of the first baffle 41) will contact the protrusion in the annealing furnace refractory material. The first baffle 41 can rotate along the column 2, while driving the second baffle 42 to rotate. The relative position between one end of the baffle (one end of the second baffle 42) and the proximity switch 3 changes (the angle between the horizontal axis of the second baffle 42 and the horizontal axis of the proximity switch 3 is not zero, and the distance between one end of the second baffle 42 and the proximity switch 3 is not the preset distance). Then, the proximity switch 3 can generate a first electrical signal. The first electrical signal can be used to indicate the presence of a protrusion in the refractory material, thereby accurately detecting whether the refractory material has a protrusion.

[0073] Based on the same inventive concept as the above embodiment, the present invention also provides a detection system for annealing furnace refractory materials, such as Figure 4 As shown, the system includes: a controller 401 and the detection device 14 described in the above embodiment;

[0074] The detection device 14 is placed on one side of the annealing furnace. The detection device 14 is used to generate a first electrical signal if a protrusion is detected in the refractory material in the annealing furnace during the rotation of the annealing furnace.

[0075] The controller 401 is configured to trigger an audible and visual alarm signal according to the first electrical signal.

[0076] Accordingly, the system further includes: an image acquisition device ( Figure 4 (not shown) and host computer 402;

[0077] The controller 401 is electrically connected to the host computer 402;

[0078] The image acquisition device is installed on one side of the detection device 14, and the image acquisition device is used to acquire images of refractory materials located near the detection device 14; accordingly,

[0079] The controller 401 is further configured to switch the refractory material image to the display screen of the host computer 402 upon receiving the first electrical signal.

[0080] The implementation principle of the specific structure of the detection device 14 can be found in the above-mentioned detailed description of the detection device embodiment, so it will not be repeated here.

[0081] Based on the same inventive concept as the above embodiment, the present invention also provides a method for detecting refractory materials of an annealing furnace, such as Figure 5 As shown, the method includes the following steps:

[0082] S510: Detecting the refractory material of the annealing furnace using a detection device. If it is determined that the refractory material has a protrusion, a first electrical signal is generated.

[0083] As described above, the detection device is placed on one side of the open base and aligned with the edge area (such as area 47) of the open area of ​​the upper trolley.

[0084] The first baffle of the detection device acts as a detection baffle, and the first baffle is close to the annealing furnace side. The second baffle of the detection device acts as a signal baffle, and the second baffle is away from the annealing furnace side. If there is a protrusion on the refractory material, during the rotation of the annealing furnace, the other end of the baffle (the other end of the first baffle 1) will touch the protrusion of the refractory material of the annealing furnace. The first baffle can rotate along the column, while driving the second baffle to rotate. The relative position between one end of the baffle (one end of the second baffle) and the proximity switch changes (the angle between the horizontal axis of the first baffle and the horizontal axis of the proximity switch is not 0, and the distance between one end of the second baffle and the proximity switch is not the preset distance). Then, the proximity switch can generate a first electrical signal. The first electrical signal can be used to indicate the presence of a protrusion on the refractory material, thereby accurately detecting whether the refractory material has a protrusion.

[0085] For example, during the rotation of the annealing furnace, when the detection device 14 determines that there is a protrusion on the refractory material 15, the protrusion of the refractory material 15 must be near the location of the detection device 14. Since the steel coil will stay in an area for 3 hours after moving to the area, the staff can check the refractory material in the area near the location of the detection device 14 within 3 hours, and then quickly lock the location of the protrusion.

[0086] S511: Utilize a controller to trigger an audible and visual alarm signal according to the first electrical signal.

[0087] When the detection equipment generates a first electrical signal, the first electrical signal can be sent to the controller. The controller can trigger an audible and visual alarm signal based on the first electrical signal, and switch the image of the refractory material to the display screen of the host computer to remind the staff to check in time.

[0088] Specifically, when the detection device does not detect a bulge in the refractory material, the detection device will generate a second electrical signal; the second electrical signal is different from the first electrical signal (different amplitude), so the controller can accurately determine whether there is a bulge in the refractory material based on the type of electrical signal sent by the detection device. If so, an early warning will be issued to remind the staff to check it in time.

[0089] In this way, the detection equipment can be used to accurately detect whether there are protrusions in the refractory materials. If so, the sound and light alarm will be triggered in time, and the staff can repair the protrusions in time to improve the stability of the annealing furnace operation.

[0090] During the inspection process, if staff discover a small protrusion in the refractory material, they can remove it. If the protrusion is large, the entire piece of refractory material will need to be replaced. Furthermore, if cracks are found in the refractory material, high-temperature adhesive can be applied to the cracks. Once the cracks cool, the refractory material will be completely restored, preventing the protrusion. High-temperature adhesives can remain stable in temperatures exceeding 1500°C, preventing further cracking due to thermal expansion and contraction.

[0091] It can be seen that the detection equipment, system and method provided by the present invention can bring the following beneficial effects:

[0092] 1. It can monitor the condition of the refractory materials on the upper trolley in real time. Once the refractory materials protrude, it can issue a warning in time, thus avoiding the difficulty in leveling the drawbridge and the tripping of personnel caused by the protrusion of refractory materials.

[0093] 2. Detection equipment is used to ensure that any risk of refractory materials falling can be detected in a timely manner. This avoids accidents such as trolley rotation jamming and furnace shell deformation caused by refractory materials. It also reduces electrical equipment short circuits caused by water seal groove blockage, improving production efficiency and safety.

[0094] 3. Through effective prevention and monitoring, the replacement frequency of refractory materials can be reduced, which reduces maintenance costs. At the same time, since damage to annealing furnace equipment is avoided, maintenance costs are also reduced.

[0095] Through one or more embodiments of the present invention, the present invention has the following beneficial effects or advantages:

[0096] The present invention provides a detection device, system and method for refractory materials of an annealing furnace, wherein the detection device is placed on one side of the annealing furnace, and comprises: a base plate; a column mounted on the base plate, the column being located on one side of the base plate; a baffle sleeved on the column; a proximity switch located on the other side of the base plate, one end of the proximity switch being aligned with one end of the baffle; wherein, when the other end of the baffle touches the refractory material of the annealing furnace, the baffle can rotate along the column, and the relative position between one end of the baffle and the proximity switch changes, and the proximity switch generates a first electrical signal accordingly, and the first The electrical signal is used to characterize the presence of a protrusion on the refractory material; in this way, when a protrusion exists on the refractory material on the annealing furnace, as the annealing furnace rotates, the refractory material will touch one end of the baffle, and one end of the baffle will rotate along the column, thereby causing the position of the other end of the baffle to change; when the position of the other end of the baffle changes, the relative position between the other end of the baffle and the proximity switch will change, and then the proximity switch will generate a first electrical signal, and at this time the first electrical signal can characterize the presence of a protrusion on the refractory material; in this way, the detection equipment can be used to accurately detect whether there is a protrusion on the refractory material. If so, the staff can repair the protrusion in time to improve the stability of the annealing furnace operation.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detection device for refractory materials of an annealing furnace, characterized in that: The detection equipment is placed on one side of the annealing furnace, and the detection equipment includes: substrate; A column is installed on the base plate, and the column is located on one side of the base plate; a baffle, sleeved on the column; A proximity switch is located on the other side of the substrate, and one end of the proximity switch is aligned with one end of the baffle; wherein, When the other end of the baffle touches the refractory material of the annealing furnace, the baffle can rotate along the column, and the relative position between one end of the baffle and the proximity switch changes, and the proximity switch generates a first electrical signal, which is used to indicate the presence of a protrusion in the refractory material.

2. The detection device according to claim 1, characterized in that The baffle comprises: a first baffle, a second baffle and a sleeve; The first baffle is connected to one side of the sleeve; The second baffle is connected to the other side of the sleeve; The sleeve is sleeved on the column.

3. The detection device according to claim 1, characterized in that The detection equipment further comprises: a reset component and a vertical plate; The vertical plate is installed on the base plate; One end of the reset component is connected to the other end of the baffle, and the other end of the reset component is connected to the vertical plate; the reset component is used to reset the baffle to its initial position after the relative position between the other end of the baffle and the proximity switch changes.

4. The detection device according to claim 1, characterized in that The detection device also includes: The bracket is mounted on the other side of the substrate, and an annular fixing component is provided above the bracket; wherein, The proximity switch is placed in the annular fixing component.

5. The detection device according to claim 1, wherein: The detection device further comprises: a limiting column; The limiting column is installed on one side of the base plate, and the limiting column is used to limit the moving distance of the first baffle.

6. The detection device according to claim 3, characterized in that The reset component includes a spring.

7. A detection system for refractory materials of an annealing furnace, characterized in that: The system comprises: a controller and the detection device according to any one of claims 1 to 6; The detection device is placed on one side of the annealing furnace, and is used to generate a first electrical signal if a protrusion is detected in the refractory material in the annealing furnace during the rotation of the annealing furnace; The controller is used to trigger an audible and visual alarm signal according to the first electrical signal.

8. The detection system according to claim 6, wherein: The system also includes: an image acquisition device and a host computer; The image acquisition device is installed on one side of the detection device, and is used to acquire images of refractory materials located near the detection device; accordingly, The controller is further configured to, upon receiving the first electrical signal, switch the image of the refractory material to the display screen of the host computer.

9. The detection system according to claim 7, wherein: The annealing furnace includes: an upper trolley and a lower trolley; The lower trolley is used to provide support for the upper trolley and drive the annealing furnace to rotate; The upper trolley is used to provide an entrance for the steel coil to enter the annealing furnace; wherein, The entrance of the upper trolley is adjacent to a preset open base, and the steel coil can enter the annealing furnace from the open base through the entrance of the upper trolley; the detection equipment is installed on one side of the open base.

10. A method for detecting refractory materials of an annealing furnace, characterized in that: The method comprises: Using a detection device to detect the refractory material of the annealing furnace, if it is determined that the refractory material has a protrusion, a first electrical signal is generated; A controller is used to trigger an audible and visual alarm signal according to the first electrical signal.

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