A furnace slag dam protection device
By designing a furnace slag-blocking protection device, the problems of ladle displacement and molten steel splashing during transportation were solved, achieving stable transportation and safe water injection of the ladle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ZHONGHAN ZHONGXIN RENEWABLE RESOURCES COMPREHENSIVE UTILIZATION CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-26
AI Technical Summary
During the steelmaking process, ladles are prone to shifting during transportation, and molten steel and slag can easily splash out, posing a safety hazard that could cause injury to personnel.
A furnace slag-blocking protection device was designed, including a frame, a ladle, an annular retaining ring, and an anti-deviation component. The ladle is fixed by screws and arc-shaped clamps, and the annular retaining ring changes the direction of molten steel flow to prevent splashing.
It effectively secures the ladle, preventing it from shifting or shaking during transportation, and redirects the molten steel flow back into the ladle by changing its direction, thus preventing splashing and improving safety and operational efficiency.
Smart Images

Figure CN224411809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steelmaking equipment technology, and in particular to a furnace slag-blocking protection device. Background Technology
[0002] In the steelmaking process, molten steel smelted in electric furnaces or converters is placed in ladles and hoisted to the refining furnace station. After the ladle is transported to the refining furnace ladle car, workers need to go to the ladle to insert and remove argon gas pipes. During this operation, high-temperature slag may overflow from the ladle and fall, burning the operators working nearby and causing injury or death. Therefore, slag-blocking protection devices are needed to protect personnel.
[0003] According to the authorized announcement number CN221695260U, a utility model patent for a ladle car relates to the field of metallurgical equipment technology. Its beneficial effects are as follows: the synchronous adjustment device can selectively drive the U-shaped movable frame in the forward direction of the ladle car to rotate so that the L-shaped cleaning block contacts the track for cleaning work, and at the same time drive the U-shaped movable frame in the opposite direction to rotate so that the L-shaped cleaning block moves away from the track to avoid unnecessary wear and extend service life. During the operation of the ladle car, the L-shaped cleaning block can effectively clean foreign objects on the track in the forward direction, preventing foreign objects from affecting the service life of the wheels and tracks and causing derailment.
[0004] In the aforementioned technology, the ladle is placed directly on the vehicle body and lacks a function to secure it. When the vehicle body starts, stops, or moves, the ladle is prone to displacement, posing a certain safety hazard. At the same time, when molten steel is poured into the ladle, the molten steel and the steel slag it carries can easily splash out due to inertia and burn people. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A furnace slag-blocking protection device includes a frame, a steel ladle is provided at the center of the top of the frame, an annular retaining ring is fixedly connected to the top of the steel ladle, anti-deviation components are provided on both sides of the top of the frame, and a steel cover is provided on the top of the annular retaining ring.
[0008] The anti-deviation assembly includes a vertical plate fixed to the top of the frame, a side plate fixedly connected to one side of the vertical plate, a screw threaded to the inner wall of the vertical plate, an arc-shaped clamp plate rotatably connected to one end of the screw via a bearing seat, a handle fixedly connected to the other end of the screw, and the bottom of the side plate fixedly connected to the top of the frame.
[0009] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, the frame includes wheels and anti-slip plates, and the inner wall of the frame is provided with four sets of wheels.
[0010] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, an anti-slip plate is fixedly connected to the center of the top of the frame, and anti-slip textures are distributed on the top of the anti-slip plate, with the ladle located on top of the anti-slip plate.
[0011] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, the ladle includes a steel outlet, and one side of the ladle is connected to the steel outlet.
[0012] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, the steel cover includes a baffle and an insulation layer, and a baffle is fixedly connected to one side of the steel cover.
[0013] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, the bottom of the steel cover is provided with a heat insulation layer, which is made of silicate heat insulation material.
[0014] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, the ladle and the steel cover are each fixedly connected to one side with a lug plate. The number of lug plates is six, and three are arranged in a group. The two groups of lug plates are symmetrically arranged vertically.
[0015] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, a limiting hole is provided on the inner wall of the lug plate on one side of the ladle, and a limiting rod is fixedly connected to the bottom of the lug plate on one side of the steel cover.
[0016] As a preferred embodiment of the furnace slag-blocking protection device of this utility model, an upper fixing plate and a lower fixing plate are fixedly connected to the outer side of the ladle, a support plate and a fixing block are fixedly connected between the upper fixing plate and the lower fixing plate, and a hanging rod is fixedly connected to one side of the fixing block.
[0017] In a preferred embodiment of the furnace slag-blocking protection device of this utility model, the number of support plates is several, and the several support plates are arranged in a ring.
[0018] The beneficial effects of this utility model are as follows: the ladle filled with molten steel is transported to the anti-slip plate by an external lifting device, and then the handle is turned to make the screw drive the arc-shaped clamp to move and clamp the ladle, so as to prevent the ladle from shifting or shaking when the frame moves by the wheels. When molten steel is injected into the ladle, the flow direction of the molten steel can be changed by the annular retaining ring, so that it flows back into the ladle and prevents the molten steel from splashing out due to the inertia during injection. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0020] Figure 1 This is an overall structural diagram of a furnace slag-blocking and protection device.
[0021] Figure 2 This is a schematic diagram of the anti-deviation component in the furnace slag-blocking protection device.
[0022] Figure 3 This is a schematic diagram of the structure of the ladle and steel cover in the slag-blocking protection device of the furnace.
[0023] Figure 4 This is a schematic diagram of the steel cover and insulation layer in the slag-blocking protection device for a smelting furnace.
[0024] The following are the labels in the diagram: 1. Frame; 101. Wheel; 102. Anti-slip plate; 2. Steel ladle; 201. Steel outlet; 3. Annular retaining ring; 4. Anti-deviation component; 41. Vertical plate; 42. Side plate; 43. Screw; 44. Arc-shaped clamp; 45. Handle; 5. Steel cover; 501. Cover; 502. Insulation layer; 6. Ear plate; 7. Upper fixing plate; 8. Lower fixing plate; 9. Support plate; 10. Fixing block; 11. Hanging rod. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0028] Example 1:
[0029] Reference Figures 1-4 This is the first embodiment of the present utility model. This embodiment provides a furnace slag-blocking protection device, including a frame 1, a steel ladle 2 is provided at the center of the top of the frame 1, an annular retaining ring 3 is fixedly connected to the top of the steel ladle 2, anti-deviation components 4 are provided on both sides of the top of the frame 1, and a steel cover 5 is provided on the top of the annular retaining ring 3.
[0030] The anti-deviation assembly 4 includes a vertical plate 41 fixed to the top of the frame 1. A side plate 42 is fixedly connected to one side of the vertical plate 41. A screw 43 is threadedly connected to the inner wall of the vertical plate 41. One end of the screw 43 is rotatably connected to an arc-shaped clamp 44 through a bearing seat. The other end of the screw 43 is fixedly connected to a handle 45. The bottom of the side plate 42 is fixedly connected to the top of the frame 1. The arc-shaped clamp 44 is made of 310S stainless steel, and the screw 43 is made of molybdenum steel.
[0031] The frame 1 includes wheels 101 and anti-slip plates 102, and four sets of wheels 101 are provided on the inner wall of the frame 1.
[0032] An anti-slip plate 102 is fixedly connected to the center of the top of the frame 1. Anti-slip textures are distributed on the top of the anti-slip plate 102, and the steel ladle 2 is located on top of the anti-slip plate 102.
[0033] The ladle 2 filled with molten steel is transported to the anti-slip plate 102 by an external lifting device. Then, the handle 45 is turned to move the screw 43 through the upright plate 41. When the screw 43 moves, it drives the arc-shaped clamping plate 44 to move. Through the relative movement of the two sets of arc-shaped clamping plates 44, the ladle 2 can be clamped and fixed to prevent the ladle 2 from shifting or shaking when the frame 1 moves through the wheels 101. When molten steel is injected into the ladle 2, the flow direction of the molten steel can be changed by the annular retaining ring 3, so that it flows back into the ladle 2, preventing the molten steel from splashing out due to the inertia during injection.
[0034] Example 2:
[0035] This is the second embodiment of the present invention, which is based on the previous embodiment.
[0036] Specifically, the ladle 2 includes a steel outlet 201, and one side of the ladle 2 is connected to the steel outlet 201.
[0037] The outlet 201 facilitates the pouring of molten steel from the ladle 2. The water can flow out smoothly through the outlet 201 without being obstructed by the ladle 2 opening, preventing the molten steel from flowing out or splashing. In addition, the outlet can also play a guiding role, making the water flow more concentrated and stable, thereby improving the efficiency and accuracy of pouring.
[0038] Specifically, the steel cover 5 includes a baffle 501 and an insulation layer 502. The baffle 501 is fixedly connected to one side of the steel cover 5. When the steel cover 5 is combined with the steel ladle 2, the baffle 501 is simultaneously combined with the steel outlet 201, thereby sealing the steel ladle 2 and the steel outlet 201.
[0039] Specifically, the bottom of the steel cover 5 is provided with an insulation layer 502, which is made of silicate insulation material.
[0040] The 502 insulation layer can reduce heat loss from molten steel, facilitating subsequent casting processes.
[0041] Specifically, ear plates 6 are fixedly connected to one side of both the steel ladle 2 and the steel cover 5. There are six ear plates 6 in total, and three are arranged in a group. The two groups of ear plates 6 are arranged symmetrically above and below each other.
[0042] Specifically, a limiting hole is opened on the inner wall of the ear plate 6 on one side of the steel ladle 2, and a limiting rod is fixedly connected to the bottom of the ear plate 6 on one side of the steel cover 5.
[0043] After the steel cover 5 and the steel ladle 2 are combined, the two sets of ear plates 6 are simultaneously attached and merged so that the limiting rod is inserted into the limiting hole to prevent the steel cover 5 from rotating.
[0044] Example 3:
[0045] This is the third embodiment of the present invention, which is based on the first two embodiments.
[0046] Specifically, an upper fixing plate 7 and a lower fixing plate 8 are fixedly connected to the outer side of the steel ladle 2. A support plate 9 and a fixing block 10 are fixedly connected between the upper fixing plate 7 and the lower fixing plate 8, respectively. A hanging rod 11 is fixedly connected to one side of the fixing block 10. There are two sets of hanging rods 11, which are symmetrically arranged.
[0047] Specifically, there are several support plates 9, and these support plates 9 are arranged in a ring.
[0048] The upper fixing plate 7, the lower fixing plate 8, the support plate 9 and the fixing block 10 form a ring-shaped support component, which provides stable support force to the hanging rod 11. The hook of the external lifting equipment is hung on the hanging rod 11 to facilitate the lifting and transportation of the steel ladle 2.
[0049] In use, the ladle 2 filled with molten steel is transported to the anti-slip plate 102 by an external lifting device. Then, the handle 45 is turned to move the screw 43 through the upright plate 41. When the screw 43 moves, it drives the arc-shaped clamping plate 44 to move. Through the relative movement of the two sets of arc-shaped clamping plates 44, the ladle 2 can be clamped and fixed to prevent the ladle 2 from shifting or shaking when the frame 1 moves through the wheels 101. When molten steel is injected into the ladle 2, the flow direction of the molten steel can be changed by the annular retaining ring 3, so that it flows back into the ladle 2, preventing the molten steel from splashing out due to the inertia during injection.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A furnace slag-blocking protection device, comprising a frame (1), characterized in that: A steel ladle (2) is provided at the center of the top of the frame (1), and an annular retaining ring (3) is fixedly connected to the top of the steel ladle (2). Anti-deviation components (4) are provided on both sides of the top of the frame (1), and a steel cover (5) is provided on the top of the annular retaining ring (3). The anti-deviation assembly (4) includes a vertical plate (41) fixed to the top of the frame (1), a side plate (42) fixedly connected to one side of the vertical plate (41), a screw (43) threadedly connected to the inner wall of the vertical plate (41), an arc-shaped clamp (44) rotatably connected to one end of the screw (43) through a bearing seat, a handle (45) fixedly connected to the other end of the screw (43), and the bottom of the side plate (42) fixedly connected to the top of the frame (1).
2. The furnace slag-blocking protection device as described in claim 1, characterized in that: The frame (1) includes wheels (101) and anti-slip plates (102), and the inner wall of the frame (1) is provided with four sets of wheels (101).
3. The furnace slag-blocking protection device as described in claim 1, characterized in that: An anti-slip plate (102) is fixedly connected to the center of the top of the frame (1). Anti-slip textures are distributed on the top of the anti-slip plate (102). The steel ladle (2) is located on the top of the anti-slip plate (102).
4. The furnace slag-blocking protection device as described in claim 1, characterized in that: The ladle (2) includes a steel outlet (201), and the steel outlet (201) is connected to one side of the ladle (2).
5. The furnace slag-blocking protection device as described in claim 1, characterized in that: The steel cover (5) includes a baffle (501) and an insulation layer (502), and the baffle (501) is fixedly connected to one side of the steel cover (5).
6. The furnace slag-blocking protection device as described in claim 1, characterized in that: The bottom of the steel cover (5) is provided with a heat insulation layer (502), which is made of silicate heat insulation material.
7. The furnace slag-blocking protection device as described in claim 1, characterized in that: The steel ladle (2) and the steel cover (5) are each fixedly connected to one side of an ear plate (6). There are six ear plates (6) in total, and three are arranged in a group. The two groups of ear plates (6) are arranged symmetrically up and down.
8. The furnace slag-blocking protection device as described in claim 7, characterized in that: A limiting hole is provided on the inner wall of the ear plate (6) on one side of the steel ladle (2), and a limiting rod is fixedly connected to the bottom of the ear plate (6) on one side of the steel cover (5).
9. The furnace slag-blocking protection device as described in claim 1, characterized in that: The outer side of the steel ladle (2) is fixedly connected to an upper fixing plate (7) and a lower fixing plate (8). A support plate (9) and a fixing block (10) are fixedly connected between the upper fixing plate (7) and the lower fixing plate (8). A hanging rod (11) is fixedly connected to one side of the fixing block (10).
10. The furnace slag-blocking protection device as described in claim 9, characterized in that: The number of the support plates (9) is several, and the several support plates (9) are arranged in a ring.