Medium frequency furnace smelting excavator slag bucket device
Patent Information
- Application Number
- CN202522397425.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-12
AI Technical Summary
在其冶炼过程中，钢水表面会持续产生浮渣，若不及时处理，不仅会降低钢水纯度、影响成品性能，还会阻碍热传导效率，拖慢冶炼进程，对生产的稳定性与经济性造成双重制约
本装置通过与挖掘机适配，工作人员可在远离高温炉体的位置操作，彻底规避人工近距离捞渣的烫伤风险，同时，隔温材料可以很好的保护装置部件，降低高温对设备的损害，而且本装置集成抓取、卸料、残留清理一体化功能，捞爪可高效抓取浮渣，除料臂通过刮除与振动可彻底清理残留，避免浮渣二次处理，结合挖掘机的移动能力，可同时为多个中频炉清理浮渣，显著提升作业效率，并且由于本装置无需配备专属驱动装置，直接适配施工现场常见的挖掘机，可灵活应对不同规格中频炉的冶炼场景，具有良好的适应性。
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Figure CN224913579U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medium frequency furnace technology, specifically relating to an excavator slag scooping device for medium frequency furnace smelting. Background Technology
[0002] Induction furnaces are core equipment in the industrial smelting field and are widely used in steel smelting operations. During the smelting process, slag continuously forms on the surface of the molten steel. If not treated in time, it will not only reduce the purity of the molten steel and affect the performance of the finished product, but also hinder heat transfer efficiency, slow down the smelting process, and impose a dual constraint on the stability and economy of production.
[0003] In existing technologies, the mainstream slag removal methods fall into two categories: manual slag removal requires workers to be in close contact with the high-temperature furnace body, which is not only labor-intensive and limited in the amount of work done at one time, but also poses a safety hazard of being burned by high-temperature molten steel or slag; simple mechanical slag removal equipment has structural and functional limitations, and can only complete basic grabbing actions, unable to achieve efficient transfer and thorough cleaning of slag, and requires a dedicated drive device, making it unsuitable for engineering equipment such as excavators commonly found on construction sites. This increases equipment investment costs and makes it difficult to flexibly cope with different smelting scenarios due to insufficient versatility. Moreover, existing slag removal methods all have obvious technical shortcomings, such as high safety risks and low efficiency in manual operation, and simple machinery having limited functions, poor adaptability, and insufficient economy. None of them can meet the core requirements of "high efficiency, safety, versatility, and economy" for slag removal in medium-frequency furnace smelting. In summary, there is an urgent need for an excavator slag removal bucket device for medium-frequency furnace smelting. Utility Model Content
[0004] To address some or all of the technical problems existing in the prior art, this utility model provides an excavator slag scooping device for medium-frequency furnace smelting. The excavator slag scooping device is hinged to one end of the excavator's working arm. An ear plate is provided at the top of the working arm. The excavator slag scooping device for medium-frequency furnace smelting includes a main body hinged to one end of the working arm, a first hydraulic cylinder hinged between the ear plate and the main body, a frame connected below the main body, multiple scooping claws hinged to the bottom of the frame, a linkage mechanism connected above the scooping claws, a second hydraulic cylinder connected between the linkage mechanism and the main body, and multiple material removal arms connected to the linkage mechanism. Wherein: The claws are symmetrically hinged to both sides of the bottom of the frame along the length of the frame. The gap between two adjacent claws matches the width of the material removal arm. The claws and the material removal arm are alternately arranged. The claws are connected to the linkage mechanism. A through hole is vertically opened in the frame body, and the second oil cylinder is disposed in the through hole. Both the first oil cylinder and the second oil cylinder are connected to the hydraulic system installed on the excavator.
[0005] Furthermore, in the above-mentioned excavator slag scoop device for medium-frequency furnace smelting, the top of the main body is provided with a first mounting hinge, one end of the first hydraulic cylinder is hinged to the first mounting hinge via a pin, and the other end is hinged to the ear plate via the pin.
[0006] Furthermore, in the above-mentioned excavator slag scoop device for medium-frequency furnace smelting, a second mounting hinge is provided on one side of the main body, and the free end of the working arm is hinged to the second mounting hinge through the pin.
[0007] Furthermore, in the excavator slag scoop device for the above-mentioned medium-frequency furnace smelting, the main body is filled with heat-insulating material.
[0008] The excavator slag hopper device for medium-frequency furnace smelting of this utility model has the following advantages and beneficial effects: This device, adapted to excavators, allows operators to work away from the high-temperature furnace, completely eliminating the risk of burns from close-range slag removal. Simultaneously, the insulation material effectively protects the device components, reducing damage from high temperatures. Furthermore, this device integrates grabbing, unloading, and residue cleaning functions. The grabbing claw efficiently picks up floating slag, while the removal arm thoroughly cleans residue through scraping and vibration, avoiding secondary slag treatment. Combined with the mobility of excavators, it can simultaneously clean slag from multiple induction furnaces, significantly improving operational efficiency. Moreover, since this device does not require a dedicated drive unit and is directly compatible with common excavators found on construction sites, it can flexibly handle smelting scenarios for different sizes of induction furnaces, demonstrating excellent adaptability. Attached Figure Description
[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the excavator slag hopper device for medium-frequency furnace smelting according to this utility model. Figure 2 This is a schematic diagram of the working state of the slag-grabbing device of the excavator slag-collecting bucket in the medium frequency furnace smelting of this utility model. Figure 3 This is a schematic diagram of the unloading operation of the excavator slag hopper device for medium-frequency furnace smelting according to this utility model.
[0010] Explanation of reference numerals in the attached figures: 1. First hydraulic cylinder; 2. Second hydraulic cylinder; 3. Main body; 31. First mounting hinge; 32. Second mounting hinge; 4. Frame; 5. Picking claw; 6. Material removal arm; 7. Linkage mechanism; 100. Working arm; 101. Ear plate. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0012] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model discloses an excavator slag scoop for medium-frequency furnace smelting. The excavator slag scoop device is hinged to one end of the excavator working arm 100. An ear plate 101 is provided at the top of the working arm 100. The excavator slag scoop device for medium-frequency furnace smelting includes a main body 3 hinged to one end of the working arm 100, a first hydraulic cylinder 1 hinged between the ear plate 101 and the main body 3, a frame 4 connected below the main body 3, multiple scooping claws 5 hinged to the bottom of the frame 4, a linkage mechanism 7 connected above the scooping claws 5, a second hydraulic cylinder 2 connected between the linkage mechanism 7 and the main body 3, and multiple material removal arms 6 connected to the linkage mechanism 7. During the assembly of the frame 4 and the main body 3, the frame 4 is fixedly connected to the bottom of the main body 3 to ensure the connection strength between the frame 4 and the main body 3 and to prevent the frame 4 from shaking during operation. The second hydraulic cylinder 2 is installed in the vertical through hole inside the frame 4, so that the piston rod end of the second hydraulic cylinder 2 is connected to the linkage mechanism 7. The hydraulic interface of the second cylinder 2 is connected to the hydraulic system of the excavator to provide power. The claws 5 are symmetrically hinged to both sides of the bottom of the frame 4 along the length of the frame 4. The gap between two adjacent claws 5 matches the width of the material removal arm 6. The claws 5 and the material removal arm 6 are alternately arranged. The claws 5 are connected to the linkage mechanism 7. When assembling the claws 5, the material removal arm 6 and the linkage mechanism 7, multiple claws 5 are symmetrically hinged to both sides of the bottom of the frame 4 along the length of the frame 4 to ensure that the gap between adjacent claws 5 matches the width of the material removal arm 6. The material removal arm 6 and the claws 5 are alternately arranged and hinged to the bottom of the frame 4. Then, the claws 5 and the material removal arm 6 are fixedly connected to the linkage mechanism 7 to ensure that the linkage mechanism 7 can synchronously drive the claws 5 and the material removal arm 6 to rotate when it moves. A through hole is vertically opened in the frame 4. The second cylinder 2 is set in the through hole. Both the first cylinder 1 and the second cylinder 2 are connected to the hydraulic system installed on the excavator.
[0013] In one specific embodiment, in the excavator slag scoop device for medium frequency furnace smelting of this utility model, the top of the main body 3 is provided with a first mounting hinge 31, one end of the first oil cylinder 1 is hinged to the first mounting hinge 31 by a pin, and the other end is hinged to the ear plate 101 by a pin.
[0014] In one specific embodiment, in the excavator slag scoop device for medium-frequency furnace smelting of this utility model, a second mounting hinge 32 is provided on one side of the main body 3. The free end of the working arm 100 is hinged to the second mounting hinge 32 by a pin. When the main body 3 and the excavator working arm 100 are assembled, the second mounting hinge 32 on one side of the main body 3 is hinged to the free end of the excavator working arm 100 by a pin to ensure that the main body 3 can rotate flexibly around the hinge point. Then, one end of the first hydraulic cylinder 1 is hinged to the first mounting hinge 31 on the top of the main body 3 by a pin, and the other end is hinged to the ear plate 101 on the top of the excavator working arm 100 by a pin to complete the power connection between the main body 3 and the excavator.
[0015] As a specific implementation, in the excavator slag scoop device for medium frequency furnace smelting of this utility model, the main body 3 is filled with heat insulation material. During the filling process, it is ensured that the heat insulation material covers the key areas inside the main body 3, especially the positions near the frame 4 and hydraulic components, in order to achieve the best heat insulation effect.
[0016] The working principle of the excavator slag hopper device for medium-frequency furnace smelting of this utility model is as follows: Slag grabbing stage: First, operate the excavator and control the movement of the excavator's travel and working arm 100 to move the grabbing claw 5 of the device to above the slag on the surface of the molten steel in the medium frequency furnace. At this time, adjust the angle of the main body 3 by the first hydraulic cylinder 1 so that the grabbing claw 5 is aligned with the slag area, ensuring that the grabbing claw 5 can smoothly penetrate the slag. Then, control the hydraulic system of the excavator to extend the piston rod of the second hydraulic cylinder 2. The piston rod of the second hydraulic cylinder 2 pushes the linkage mechanism 7 to move. The linkage mechanism 7 transmits power to the grabbing claw 5, causing the grabbing claw 5 to rotate forward around its hinge point with the frame 4, realizing the closing action of the grabbing claw 5. Then, while the linkage mechanism 7 drives the grabbing claw 5 to close, the descrambling arm 6 rotates forward synchronously with the linkage mechanism 7, so that the descrambling arm 6 is in the open state, avoiding the descrambling arm 6 from obstructing the slag during the grabbing process of the grabbing claw 5, ensuring that the grabbing claw 5 can penetrate the slag to the surface of the molten steel, and stably grabbing the slag among multiple grabbing claws 5.
[0017] Unloading and Residue Cleaning Stage: First, operate the excavator. Through the working arm 100 and travel motion, move the device that grabs the scum to above the waste bin. Adjust the angle of the main body 3 so that the claw 5 is aligned with the opening of the waste bin, preparing for unloading. Then, control the excavator's hydraulic system to retract the piston rod of the second cylinder 2. The piston rod of the second cylinder 2 pulls the connecting rod mechanism 7 to move in the opposite direction. The connecting rod mechanism 7 drives the claw 5 to rotate in the opposite direction around its hinge point with the frame 4, realizing the opening action of the claw 5. At this time, most of the scum falls naturally into the waste bin under its own gravity. Then, at the same time as the claw 5 opens, the material removal arm 6... As the linkage mechanism 7 rotates in the opposite direction, the material removal arm 6 is in a closed state. During the closing process, the edge of the material removal arm 6 can contact the surface of the claw 5, scraping off the large pieces of scum residue adhering to the claw 5, ensuring that the large pieces of scum fall into the waste bin. Finally, if there are still a small amount of sticky scum residue on the claw 5, the piston rod of the second oil cylinder 2 is repeatedly controlled to extend and retract, driving the claw 5 and the material removal arm 6 to open and close repeatedly. During this process, the material removal arm 6 and the linkage mechanism 7 will have intermittent collisions. The vibration generated by the collisions is transmitted to the claw 5, shaking off the scum adhering to the claw 5, and finally achieving a thorough cleaning of the scum, ensuring that there is no scum residue.
[0018] In summary, compared with the prior art, the excavator slag scoop device for medium-frequency furnace smelting of this utility model has the following advantages and beneficial effects: This device, adapted to excavators, allows operators to work away from the high-temperature furnace, completely eliminating the risk of burns from close-range slag removal. Simultaneously, the insulation material effectively protects the device components, reducing damage from high temperatures. Furthermore, this device integrates grabbing, unloading, and residue cleaning functions. The grabbing claw 5 efficiently grabs slag, while the removal arm 6 thoroughly cleans residue through scraping and vibration, avoiding secondary slag treatment. Combined with the mobility of excavators, it can simultaneously clean slag from multiple induction furnaces, significantly improving operational efficiency. Moreover, since this device does not require a dedicated drive unit and is directly compatible with common excavators found on construction sites, it can flexibly handle smelting scenarios for different sizes of induction furnaces, demonstrating excellent adaptability.
[0019] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable 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 the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover 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. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.
[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A slag scooping device for an excavator used in medium-frequency furnace smelting, wherein the slag scooping device is hinged to one end of the excavator's working arm, and the top of the working arm is provided with an ear plate, characterized in that, The excavator slag scoop device for medium-frequency furnace smelting includes a main body hinged to one end of the working arm, a first hydraulic cylinder hinged between the ear plate and the main body, a frame connected below the main body, multiple scooping claws hinged to the bottom of the frame, a linkage mechanism connected above the scooping claws, a second hydraulic cylinder connected between the linkage mechanism and the main body, and multiple material removal arms connected to the linkage mechanism, wherein: The claws are symmetrically hinged to both sides of the bottom of the frame along the length of the frame. The gap between two adjacent claws matches the width of the material removal arm. The claws and the material removal arm are alternately arranged. The claws are connected to the linkage mechanism. A through hole is vertically opened in the frame body, and the second oil cylinder is disposed in the through hole. Both the first oil cylinder and the second oil cylinder are connected to the hydraulic system installed on the excavator.
2. The excavator slag scoop device for medium-frequency furnace smelting according to claim 1, characterized in that, The top of the main body is provided with a first mounting hinge, one end of the first hydraulic cylinder is hinged to the first mounting hinge by a pin, and the other end is hinged to the ear plate by the pin.
3. The excavator slag scoop device for medium-frequency furnace smelting according to claim 2, characterized in that, A second mounting lug is provided on one side of the main body, and the free end of the working arm is hinged to the second mounting lug via the pin.
4. The excavator slag scoop device for medium-frequency furnace smelting according to claim 1, characterized in that, The interior of the main body is filled with thermal insulation material.