Slag stopping device for stopping slag of steel furnace
By designing an operating rod and support frame assembly of appropriate length, the safety risks in slag-blocking operations of steel furnaces were solved, achieving a safe and efficient slag-blocking effect.
Patent Information
- Application Number
- CN202423003211.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In the existing slag-blocking process of steel furnaces, the operating rod of the slag-blocking plug is too long and requires a lot of force to lift, which poses a safety risk, and the high-temperature environment affects the life of the support frame.
Design a slag-blocking device that uses an operating rod longer than 3.5 meters to connect with a slag-blocking plug, and is equipped with a support frame and a rotating component. The support frame can be placed in front of the steel outlet, and the support rod can be rotated and stored, and fixed on the fire door to reduce the operating force and avoid high-temperature baking.
It improves the safety and stability of slag-blocking operations, reduces the required operating force, extends the service life of the support frame, and avoids the risk of personnel falling.
Smart Images
Figure CN223580650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steelmaking in steel furnaces, and more specifically, to a slag-blocking device for slag blocking in steel furnaces. Background Technology
[0002] Currently, the slag-blocking process in steel plants is a two-stage process, namely, slag-blocking plugs in the early stage and slag-blocking rods in the later stage.
[0003] The existing method of using a slag-blocking plug involves the furnace worker holding one end of a long steel pipe after tapping, inserting the other end into the hole at the tail of the slag-blocking plug, lifting it up, and then inserting it into the tapping port through the gap of the furnace fire baffle.
[0004] Because of the length of the steel pipe, the furnace operator needs to use a lot of strength to lift the slag plug and put it into the tap hole. Furthermore, the 2-meter gap between the fire baffle and the tap hole further increases the length of the steel pipe. Sometimes, the operator has to lean forward while holding onto the fire baffle to properly plug the slag plug, which poses a safety risk of personnel falling into the furnace. Utility Model Content
[0005] The present invention aims to solve, at least to a certain extent, one of the technical problems in the related technologies, and to improve the slag-blocking effect of the steel furnace without affecting the steel furnace production.
[0006] Therefore, embodiments of this utility model propose a slag-blocking device for slag blocking in steel furnaces.
[0007] The slag-blocking device according to an embodiment of the present invention includes: a slag-blocking plug; an operating rod, the length of which is greater than 3.5 meters, one end of which is connected to the slag-blocking plug; the slag-blocking plug is adapted to be inserted into the taphole of a steel furnace.
[0008] The slag-blocking device according to the embodiment of this utility model has a simple structure. The furnace operator holds the end of the 3.5-meter operating rod and inserts the slag-blocking plug at the end of the operating rod into the steel tapping port of the steel furnace, which helps to ensure the safety of steel furnace production.
[0009] In some embodiments, the tail end of the slag-blocking plug is provided with a threaded hole, one end of the operating rod is provided with an external thread, and one end of the operating rod is threaded into the threaded hole.
[0010] In some embodiments, the slag-blocking device further includes a support frame adapted to be placed in front of the taphole of the steel furnace, and the operating lever adapted to abut against the support frame.
[0011] In some embodiments, the support frame is provided with a support opening, and the operating lever is adapted to be placed in the support opening.
[0012] In some embodiments, the length of the operating lever is greater than 4.5 meters.
[0013] In some embodiments, the slag stopping device further comprises a rotating assembly, a fire stopping door is arranged in front of a tapping hole of a steel furnace, the rotating assembly is rotatably arranged on the fire stopping door, and the support frame is arranged on the rotating assembly.
[0014] In some embodiments, the slag stopping device further comprises a limiting piece, the limiting piece is arranged on the fire stopping door, and the support frame is adapted to abut against the limiting piece.
[0015] In some embodiments, the slag stopping device further comprises a receiving basket, the receiving basket is arranged on the fire stopping door, and the support frame is adapted to be received in the receiving basket.
[0016] In some embodiments, the slag stopping device further comprises a fixing mechanism, the fixing mechanism is arranged in the receiving basket to fix the support frame in the receiving basket.
[0017] In some embodiments, a cross section of the support hole is semicircular or U-shaped.
[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present disclosure. Other features and aspects of the present disclosure will be more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0020] Fig. 1 is a schematic view of a slag stopping device according to an embodiment of the present application.
[0021] Fig. 2 is a top view of a slag stopping device according to an embodiment of the present application.
[0022] Reference signs:
[0023] Slag stopping device 100, slag stopping plug 10, operating rod 20, support frame 30, support hole 31, rotating assembly 40, limiting piece 41, receiving basket 42.
[0024] Steel furnace 200, tapping hole 201, fire stopping door 202. DETAILED DESCRIPTION
[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] like Figs. 1-2 As shown, the slag-blocking device 100 according to an embodiment of the present invention includes a slag-blocking plug 10 and an operating rod 20.
[0027] The length of the operating rod 20 is greater than 3.5 meters. One end of the operating rod 20 is connected to the slag-blocking plug 10, which is suitable for being inserted into the tapping port 201 of the steel furnace 200.
[0028] Specifically, such as Figs. 1-2 As shown, the operating lever 20 is a slender steel tube, which helps to extend the working life of the operating lever 20 in high-temperature environments.
[0029] A slag-blocking plug 10 is provided on the end of the operating rod 20. The slag-blocking method of the slag-blocking device 100 in this embodiment of the utility model is as follows: After the steel tapping is completed, the furnace operator holds the tail end of the 3.5-meter operating rod 20, lifts the operating rod 20, and inserts the slag-blocking plug 10 on the head end of the operating rod 20 into the steel tapping port 201.
[0030] According to the embodiment of the present utility model, the slag-blocking device 100 has a simple structure. The furnace operator holds the tail of the 3.5-meter operating rod 20 and inserts the slag-blocking plug 10 at the end of the operating rod 20 into the steel outlet 201 of the steel furnace 200, which helps to ensure the safety of the steel furnace 200 during production.
[0031] In some embodiments, such as Figs. 1-2 As shown, the tail of the slag-blocking plug 10 is provided with a threaded hole, and one end of the operating rod 20 is provided with an external thread, and one end of the operating rod 20 is threaded into the threaded hole.
[0032] It is understandable that the threaded connection between the operating rod 20 and the slag-blocking plug 10 effectively improves the stability between the operating rod 20 and the slag-blocking plug 10.
[0033] Preferably, after the operating rod 20 is inserted into the threaded hole, the operating rod 20 can also be welded together with the tail of the slag-blocking plug 10, which is beneficial to further improve the stability between the operating rod 20 and the slag-blocking plug 10.
[0034] In some embodiments, such as Figs. 1-2 As shown, the slag-blocking device 100 also includes a support frame 30, which is adapted to be placed in front of the tapping port 201 of the steel furnace 200, and the operating rod 20 is adapted to abut against the support frame 30.
[0035] It should be noted that the furnace operator holds the 3.5-meter operating rod 20, which is used to insert the slag-blocking plug 10 into the taphole 201. However, because the operating rod 20 is relatively long, the furnace operator needs to use a lot of strength to lift the slag-blocking plug 10 and put it into the taphole 201. In addition, because the area in front of the taphole 201 is a high-temperature environment, the operating rod 20 cannot be too short. The length of the 3.5-meter operating rod 20 is barely enough. Sometimes the furnace operator also needs to lean forward and hold onto the fire baffle 202 to make sure the slag-blocking plug 10 is properly inserted, which poses a safety risk of personnel falling into the furnace.
[0036] It is understandable that the temperature in front of the steel outlet 201 is high, which can easily reduce the service life of the support frame 30. Therefore, in this embodiment, the support frame 30 is about 2 meters away from the steel outlet 201.
[0037] Because the support frame 30 provides a new support point, the length of the operating rod 20 can be extended to 4.5 meters, allowing the furnace operator to insert the slag plug 10 at a distance from the fire baffle 202, which saves physical strength and eliminates the operational risks when inserting the slag plug 10.
[0038] In some embodiments, such as Figs. 1-2 As shown, the support frame 30 is provided with a support opening 31, and the operating rod 20 is adapted to be placed in the support opening 31.
[0039] Understandably, the support frame 30 is equipped with a support port 31, which helps to improve the stability of the operating rod 20 when plugging the slag plug 10.
[0040] In some embodiments, such as Figs. 1-2 As shown, the slag-blocking device 100 also includes a rotating component 40. A fire-blocking door 202 is provided in front of the steel outlet 201 of the steel furnace 200. The rotating component 40 is rotatably mounted on the fire-blocking door 202, and the support frame 30 is mounted on the rotating component 40.
[0041] It is understandable that the rotating component 40 is installed on the fire baffle 202 so that the support frame 30 can be flipped back after the slag is blocked, thus avoiding high-temperature baking during the steel tapping process and extending the service life of the support frame 30.
[0042] In some embodiments, such as Figs. 1-2 As shown, the slag-blocking device 100 also includes a limiting member 41, which is disposed on the fire door 202, and the support frame 30 is adapted to abut against the limiting member 41.
[0043] Understandably, by installing the limiting component 41 on the fire door 202, the support frame 30 can stay on the limiting component 41 when in use, thereby effectively improving the stability of the support frame 30.
[0044] In some embodiments, as shown in Figs. 1-2 The slag stopping device 100 further comprises a receiving basket 42, which is arranged on the fire door 202, and the support frame 30 is adapted to be received in the receiving basket 42.
[0045] It can be understood that the support frame 30 is turned back to be received in the receiving basket 42 after the slag stopping is finished, so as to avoid high-temperature baking during the tapping process and prolong the service life of the support frame 30.
[0046] In some embodiments, as shown in Figs. 1-2 The slag stopping device 100 further comprises a fixing mechanism (not shown), which is arranged in the receiving basket 42 and used to fix the support frame 30 in the receiving basket 42.
[0047] It can be understood that the fixing mechanism is used to fix the support frame 30.
[0048] In some embodiments, as shown in Figs. 1-2 The cross section of the support opening 31 is semicircular or U-shaped.
[0049] It can be understood that the operating rod 20 is in a round rod type structure, so that the cross section of the support opening 31 can be designed as semicircular or U-shaped.
[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0051] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0052] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the specific meaning of above terms in the utility model according to specific circumstances.
[0053] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can be that first and second features directly contact, or first and second features indirectly contact through intermediate medium.Moreover, first feature "over", "above" and "on" second feature can be that first feature is directly above or obliquely above second feature, or just indicates that the horizontal height of first feature is higher than that of second feature.First feature "under", "below" and "under" second feature can be that first feature is directly below or obliquely below second feature, or just indicates that the horizontal height of first feature is less than that of second feature.
[0054] In the utility model, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.
[0055] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model.The ordinary skilled person in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.
Claims
1. A slag-blocking device for slag blocking in steel furnaces, characterized in that, include: Slag plug; An operating rod, the length of which is greater than 3.5 meters, and one end of which is connected to the slag-blocking plug; The slag-blocking plug is suitable for insertion into the taphole of the steel furnace.
2. The slag-blocking device for steel furnace slag blocking according to claim 1, characterized in that, The tail end of the slag-blocking plug is provided with a threaded hole, and one end of the operating rod is provided with an external thread, and one end of the operating rod is threaded into the threaded hole.
3. The slag-blocking device for steel furnace slag blocking according to claim 1, characterized in that, Also includes: A support frame, the support frame being adapted to be placed in front of the tapping opening of a steel furnace, and the operating lever being adapted to abut against the support frame.
4. The slag-blocking device for steel furnace slag blocking according to claim 3, characterized in that, The support frame is provided with a support opening, and the operating rod is adapted to be placed in the support opening.
5. The slag-blocking device for steel furnace slag blocking according to claim 3, characterized in that, The length of the operating lever is greater than 4.5 meters.
6. The slag-blocking device for steel furnace slag blocking according to claim 3, characterized in that, Also includes: The rotating assembly is rotatably mounted on the fire baffle door in front of the steel tapping port of the steel furnace, and the support frame is mounted on the rotating assembly.
7. The slag-blocking device for steel furnace slag blocking according to claim 6, characterized in that, Also includes: A limiting member is provided on the fire door, and the support frame is adapted to abut against the limiting member.
8. The slag-blocking device for steel furnace slag blocking according to claim 6, characterized in that, Also includes: A storage basket is installed on the fire door, and the support frame is adapted to be stored inside the storage basket.
9. The slag-blocking device for steel furnace slag blocking according to claim 8, characterized in that, Also includes: A fixing mechanism is provided inside the storage basket to fix the support frame inside the storage basket.
10. The slag-blocking device for steel furnace slag blocking according to claim 4, characterized in that, The cross-section of the support opening is semi-circular or U-shaped.