Novel ladle slagging-off device

By designing an arc-shaped slag removal plate and reinforcing structure, combined with multi-segment articulated arms and drive cylinder adjustment, the problem of the slag removal plate not being able to fit against the molten iron ladle wall was solved, achieving more efficient slag removal and greater flexibility of the device.

CN224087966UActive Publication Date: 2026-04-07WEIHAI RUIXIANG CASTING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing slag removal device for molten iron ladles cannot effectively adhere to the ladle wall, resulting in a small portion of impurities near the ladle wall not being properly removed.

Method used

A novel slag removal device for molten iron ladles is designed, which uses a reinforcing member at the front end of the slag removal robotic arm to connect to the slag removal plate. The front end of the slag removal plate is designed to be arc-shaped, and angle adjustment is achieved by combining a multi-segment articulated arm and a drive cylinder, thereby enhancing the structural strength and flexibility of the slag removal plate.

Benefits of technology

It improves the fit between the slag removal plate and the molten iron ladle wall, effectively removes slag, reduces residue, and enhances the deformation resistance and operational flexibility of the slag removal plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel ladle slagging-off device which comprises a slagging-off mechanical arm, and a reinforcing piece is hinged to the front end of the slagging-off mechanical arm. The two groups of reinforcers are arranged in parallel and are jointly welded and connected with the slagging-off plate; each reinforcing piece comprises a main body arm, and the main body arm inclines forwards along the top end to form a rib part; the slagging-off plate is provided with a main body plate, the rear end of the main body plate is folded downwards to form a rear back plate, the front end of the main body plate inclines downwards and is connected with a main arc body part with radian, and side arc scraping plates which are upwarped in an arc shape are symmetrically arranged on the two sides of the main arc body part; the main body plate is welded and fixed with the rib part of the reinforcer, and the rear back plate is welded and fixed with the main body arm of the reinforcer. The slagging-off plate better conforming to the internal shape of the ladle is designed, iron slag can be more effectively removed, and residues are reduced.
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Description

Technical Field

[0001] This utility model relates to a slag removal device, and more particularly to a novel slag removal device for molten iron ladles. Background Technology

[0002] Slag removal from molten iron is a crucial step in the steelmaking process. After molten iron flows from the blast furnace and is loaded into the ladle, a layer of slag and other impurities floats on the surface. A slag removal device is needed to remove these floating impurities. Currently, one common method for slag removal devices is to use a crawler conveyor to move forward and backward, with a slag removal plate at the front removing the impurities. However, the slag removal plate is typically L-shaped. Since the molten iron ladle has a cylindrical structure, the ends of the L-shaped plate cannot fit well against the curved surface of the ladle, resulting in some impurities near the ladle wall not being effectively removed. Therefore, there is an urgent need for a new type of slag removal device with an improved slag removal plate. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a novel slag removal device for molten iron ladles.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: a new type of slag removal device for molten iron ladle, including a slag removal mechanical arm, and a reinforcing member is hinged to the front end of the slag removal mechanical arm.

[0005] Two sets of reinforcing members are arranged in parallel, and the two sets of reinforcing members are welded together to the slag removal plate;

[0006] Each reinforcing member includes a main arm, which is inclined forward at the top to form a rib section;

[0007] The slag removal plate has a main plate, the rear end of the main plate is folded down to form a back plate, the front end of the main plate is inclined downward and connected to a curved main arc body, and the two sides of the main arc body are symmetrically arranged with curved upward side arc scrapers.

[0008] The main body plate is welded and fixed to the rib section of the reinforcing member, and the back plate is welded and fixed to the main body arm of the reinforcing member.

[0009] Preferably, the slag removal robotic arm includes a support frame, a main support arm, and a front drive support arm;

[0010] The support frame is hinged to one end of the main support arm, and a No. 1 drive cylinder is provided between the support frame and the main support arm;

[0011] The front drive support arm is hinged to the other end of the main support arm, and a second drive cylinder is provided between the front drive support arm and the main support arm.

[0012] The slag removal plate is hinged to the front end of the front drive support arm via a reinforcing member, and a third drive cylinder is installed between the front drive support arm and the reinforcing member.

[0013] Preferably, the bottom end of the first drive cylinder is hinged to the hinge lug on the support frame, and the output end of the first drive cylinder is hinged to the hinge lug on the main support arm.

[0014] Preferably, the bottom end of the second drive cylinder is hinged to the hinge lug on the main support arm, and the output end of the second drive cylinder is hinged to the hinge lug on the front drive support arm.

[0015] Preferably, the two sets of reinforcing members are symmetrically hinged to the front end of the front drive support arm, and a transmission member is also hinged between the two sets of reinforcing members.

[0016] The bottom end of the No. 3 drive cylinder is hinged to the hinge lug on the front drive support arm, and the output end of the No. 3 drive cylinder is hinged to the transmission component.

[0017] Preferably, an arc-shaped connecting plate is also hinged between the transmission component and the front drive support arm.

[0018] Preferably, the slag removal device also includes a slewing bearing, and the slag removal robotic arm is mounted on the slewing bearing via a support frame.

[0019] Preferably, the slag removal device also includes a tracked machine, with a slewing bearing mounted on the frame of the tracked machine.

[0020] This utility model discloses a novel slag removal device for molten iron ladles, mainly focusing on structural improvements to the slag removal plate. The front working surface of the slag removal plate is designed as an arc shape, which better conforms to the internal shape of the molten iron ladle. This results in better contact between the slag removal plate and the ladle wall during slag removal, enabling more effective removal of slag and reducing residue. Simultaneously, reinforcing members are welded to the slag removal plate. These reinforcing members not only enable the hinged connection of the slag removal plate but also provide structural reinforcement to the main body plate, thereby improving the strength and rigidity of the slag removal plate. This enhances the plate's resistance to deformation and reduces the probability of bending or breakage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the slag removal robotic arm.

[0023] Figure 3 for Figure 1 A schematic diagram of the structure of the slag removal plate.

[0024] Figure 4 for Figure 3 Side view.

[0025] In the diagram: 1. Tracked machine; 2. Frame; 3. Slewing bearing; 4. Slag removal robotic arm; 5. Reinforcing component; 6. Slag removal plate; 41. Support frame; 42. Main support arm; 43. Drive cylinder No. 1; 44. Drive cylinder No. 2; 45. Front drive support arm; 46. Drive cylinder No. 3; 47. Arc-shaped connecting plate; 48. Transmission component; 51. Support arm section; 52. Rib section; 61. Main body plate; 62. Back plate; 63. Main arc body section; 64. Side arc scraper. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] This embodiment discloses a novel slag removal device for molten iron ladles, including as follows: Figure 2 The slag removal robotic arm 4 shown has a reinforcing member 5 hinged at its front end, and a slag removal plate 6 is installed through the reinforcing member 5.

[0029] Preferably, the reinforcing member 5 is provided in two sets, with the two sets of reinforcing members 5 distributed in parallel and welded together to the slag removal plate 6.

[0030] like Figure 3 As shown, the slag removal plate 6 has been structurally optimized compared to the traditional L-shaped slag removal structure. For ease of description, the structure of the slag removal plate 6 is divided into a main plate 61, a back plate 62, a main arc body 63, and a side arc scraper 64.

[0031] The main plate 61 serves as a support part. It is folded down along the rear end of the main plate 61 to form a back plate 62. It is inclined down along the front end of the main plate 61 and connected to a curved main arc part 63. The main arc part 63 has an arc shape feature, which can better fit the inner wall of the barrel-shaped molten iron ladle.

[0032] Preferably, symmetrically arranged on both sides of the main arc body 63 are arc-shaped upward-curving side arc scrapers 64. The side arc scrapers 64 have an arc-shaped corner structure, which will not excessively increase the overall width of the slag removal plate, so as to avoid affecting the contact between the slag removal plate and the inner wall of the farthest end of the molten iron ladle. At the same time, the arc-shaped side arc scrapers 64 can better adapt to the inner wall of the molten iron ladle on both sides.

[0033] Therefore, through Figure 3 The structure of the slag removal plate 6 shown in this embodiment allows the novel slag removal device for molten iron ladles disclosed in this embodiment to fit better against the wall of the molten iron ladle, thereby removing the slag more effectively and reducing residue.

[0034] Furthermore, the addition of reinforcing component 5 enhances the reliability and structural strength of the slag removal device, such as... Figure 3 and Figure 4 As shown, for ease of description, the reinforcing member 5 is divided into a main arm 51 and a rib portion 52. The rib portion 52 is formed by the main arm 51 tilting forward from its top end. The main plate 61 is welded and fixed to the rib portion 52 of the reinforcing member 5, and the back plate 62 is welded and fixed to the main arm 51 of the reinforcing member 5. Thus, the rib portion 52 is welded and fixed above the main plate 61, and as a reinforcing rib, it can play a role in structural reinforcement.

[0035] Therefore, in the novel slag removal device for molten iron ladles disclosed in this embodiment, the front working surface of the slag removal plate is designed as an arc shape, resulting in better contact between the slag removal plate and the ladle wall, enabling more effective removal of slag and reducing residue. Simultaneously, reinforcing members are welded to the slag removal plate to improve its strength and rigidity, thereby enhancing its resistance to deformation and reducing the probability of bending or breakage.

[0036] Example 2

[0037] This embodiment discloses a novel slag removal device for molten iron ladles. Based on the structure disclosed in Embodiment 1, the structural configuration of the slag removal robotic arm 4 is further defined.

[0038] like Figure 1 and Figure 2 As shown, the slag removal robotic arm 4 adopts a multi-segment articulated arm combined with drive cylinders to achieve working angle adjustment. It mainly includes: support frame 41, main support arm 42, front drive support arm 45, and multiple hydraulic cylinders, which are drive cylinder 1 43, drive cylinder 2 44, and drive cylinder 3 46.

[0039] The support frame 41 is hinged to one end of the main support arm 42, and a first drive cylinder 43 is provided between the support frame 41 and the main support arm 42; the bottom end of the first drive cylinder 43 is hinged to the hinge ear on the support frame 41, and the output end of the first drive cylinder 43 is hinged to the hinge ear on the main support arm 42.

[0040] The front drive support arm 45 is hinged to the other end of the main support arm 42, and a second drive cylinder 44 is provided between the front drive support arm 45 and the main support arm 42; the bottom end of the second drive cylinder 44 is hinged to the hinge ear on the main support arm 42, and the output end of the second drive cylinder 44 is hinged to the hinge ear on the front drive support arm 45.

[0041] The slag removal plate 6 is hinged to the front end of the front drive support arm 45 via the reinforcing member 5. A third drive cylinder 46 is provided between the front drive support arm 45 and the reinforcing member 5. Specifically, two sets of reinforcing members 5 are symmetrically hinged to the front end of the front drive support arm 45, and a transmission member 48 is also hinged between the two sets of reinforcing members 5. The bottom end of the third drive cylinder 46 is hinged to the hinge lug on the front drive support arm 45, and the output end of the third drive cylinder 46 is hinged to the transmission member 48.

[0042] Furthermore, in order to enable the transmission component 48 to drive the reinforcing component 5 and the slag removal plate 6 to move, an arc-shaped connecting plate 47 is also hinged between the transmission component 48 and the front drive support arm 45.

[0043] Therefore, by controlling the extension and retraction of the first drive cylinder 43, the working angle of the main support arm 42 can be adjusted; by controlling the extension and retraction of the second drive cylinder 44, the working angle of the front drive support arm 45 can be adjusted; and by controlling the extension and retraction of the third drive cylinder 46, the angle of the slag removal plate 6 can be adjusted.

[0044] Since the main support arm 42, the front drive support arm 45 and the slag removal plate 6 are all adjustable, the three-level adjustment mode can greatly increase the operational flexibility of the new molten iron ladle slag removal device in this embodiment, so as to facilitate the smooth progress of slag removal operation.

[0045] Furthermore, it should be noted that drive cylinders 43 (number one), 44 (number two), and 46 (number three) are all hydraulic cylinders, each connected to the same hydraulic system. The hydraulic system provides power to drive the pistons of these cylinders, enabling the main support arm 42, the front drive support arm 45, and the slag removal plate 6 to complete their respective adjustment actions. The hydraulic system mainly consists of a hydraulic pump, control valves, an oil tank, and pipelines. The control valves are connected to a rocker operating system and are used to regulate the flow and pressure of the hydraulic oil. The hydraulic pump is driven by the engine.

[0046] The position of the valve core of the hydraulic valve is controlled by a manual joystick, thereby changing the flow direction and flow rate of the hydraulic oil. The hydraulic pump draws hydraulic oil from the oil tank, pressurizes it, and delivers it to the pipelines of the hydraulic system. The hydraulic oil is then delivered to the corresponding hydraulic cylinders through the pipelines, converting mechanical energy into hydraulic energy, thereby enabling the hydraulic cylinders to drive and adjust the main support arm 42, the front drive support arm 45, and the slag removal plate 6. Since the above-mentioned driving method is prior art and not the focus of this application's improvement, it will not be described in detail here.

[0047] Example 3

[0048] This embodiment discloses a novel slag removal device for molten iron ladles. Based on the structure of Embodiment 2, the slag removal device also includes a slewing bearing 3 and a crawler 1.

[0049] The tracked machine 1 provides the driving force for the forward and backward movement of the entire muck-removing device. A slewing bearing 3 is installed on the frame 2 of the tracked machine 1. The slewing bearing 3 is equipped with a slewing bearing seat. The muck-removing mechanical arm 4 is mounted on the slewing bearing 3 through the support frame 41. The slewing bearing 3 can be a single-row four-point contact ball slewing bearing to stably support the load of the upper muck-removing mechanical arm and ensure the smoothness of the slewing action.

[0050] Therefore, by incorporating the slewing bearing 3, the novel slag removal device for molten iron ladles in this embodiment is endowed with slewing capability, further enhancing the flexibility of its use. The tracked machine can utilize the existing tracked machine structure used in existing slag removal devices, providing driving force for the forward and backward movement of the entire slag removal device.

[0051] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A novel slag-removing device for molten iron ladles, comprising a slag-removing robotic arm (4), characterized in that: A reinforcing member (5) is hinged to the front end of the slag removal robotic arm (4); The reinforcing member (5) is arranged in two sets in parallel, and the two sets of reinforcing members (5) are welded together to the slag removal plate (6); Each of the reinforcing members (5) includes a main arm (51), and the main arm (51) is inclined forward along the top end to form a rib portion (52); The slag removal plate (6) has a main plate (61), the rear end of the main plate (61) is folded down to form a back plate (62), the front end of the main plate (61) is inclined downward and connected to a main arc body part (63) with an arc, and the two sides of the main arc body part (63) are symmetrically provided with side arc scrapers (64) that are curved upward. The main plate (61) is welded and fixed to the rib section (52) of the reinforcing member (5), and the back plate (62) is welded and fixed to the main arm (51) of the reinforcing member (5).

2. The novel slag removal device for molten iron ladles according to claim 1, characterized in that: The slag removal robotic arm (4) includes a support frame (41), a main support arm (42), and a front drive support arm (45); The support frame (41) is hinged to one end of the main support arm (42), and a drive cylinder (43) is provided between the support frame (41) and the main support arm (42); The front drive support arm (45) is hinged to the other end of the main support arm (42), and a second drive cylinder (44) is provided between the front drive support arm (45) and the main support arm (42); The slag removal plate (6) is hinged to the front end of the front drive support arm (45) through the reinforcing member (5), and a third drive cylinder (46) is provided between the front drive support arm (45) and the reinforcing member (5).

3. The novel slag removal device for molten iron ladles according to claim 2, characterized in that: The bottom end of the first drive cylinder (43) is hinged to the hinge lug on the support frame (41), and the output end of the first drive cylinder (43) is hinged to the hinge lug on the main support arm (42).

4. The novel slag removal device for molten iron ladles according to claim 2, characterized in that: The bottom end of the second drive cylinder (44) is hinged to the hinge lug on the main support arm (42), and the output end of the second drive cylinder (44) is hinged to the hinge lug on the front drive support arm (45).

5. The novel slag removal device for molten iron ladles according to claim 2, characterized in that: The two sets of reinforcing members (5) are symmetrically hinged to the front end of the front drive support arm (45), and a transmission member (48) is also hinged between the two sets of reinforcing members (5); The bottom end of the third drive cylinder (46) is hinged to the hinge lug on the front drive support arm (45), and the output end of the third drive cylinder (46) is hinged to the transmission component (48).

6. The novel slag removal device for molten iron ladles according to claim 5, characterized in that: An arc-shaped connecting plate (47) is also hinged between the transmission component (48) and the front drive support arm (45).

7. The novel slag removal device for molten iron ladles according to any one of claims 2-5, characterized in that: The slag removal device also includes a slewing bearing (3), and the slag removal mechanical arm (4) is mounted on the slewing bearing (3) via a support frame (41).

8. The novel slag removal device for molten iron ladles according to claim 7, characterized in that: The slag removal device also includes a tracked machine (1), and the slewing bearing (3) is mounted on the frame (2) of the tracked machine (1).