Device for cleaning bonded slag on edge of steel ladle with ladle cover
By designing a cleaning device for a scraper plate and a supporting structure, the problem of slag sticking to the edge of a covered ladle being difficult to clean is solved, automated cleaning is achieved, safety risks and production costs are reduced, and the ladle covering rate is increased.
Patent Information
- Application Number
- CN202422806439.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The existing technology makes it difficult to clean the slag stuck to the edge of a ladle with a ladle cover, resulting in the ladle cover not being able to cover smoothly, increasing safety hazards and production costs, and making manual cleaning difficult.
A cleaning device including a scraper plate, supporting columns, inclined supports, bottom beams, cross beams and lifting lugs was designed. The scraper plate was placed vertically to scrape the edge of the ladle, and combined with the stable support of the supporting columns and bottom beams, automatic cleaning was achieved.
The invention realizes the timely cleaning of the ladle edge when the ladle is covered, eliminates the risk of the ladle falling off, reduces production cost and labor intensity, reduces environmental pollution, and improves the ladle covering rate.
Smart Images
Figure CN223418339U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a device for cleaning slag adhered to the rim of a ladle with a cover, and belongs to the technical field of ladle maintenance and cleaning equipment. BACKGROUND
[0002] At present, the ladle cover is an effective measure to reduce heat loss and temperature drop during the ladle preparation process, hoisting process and continuous casting process. However, a small amount of steel slag flows across the ladle opening during the furnace tilting process at the end of the tapping process, and the steel slag splashed during the smelting process and the steel slag during the pouring of the remaining continuous casting ladle will cause the steel slag to adhere to the ladle rim and thicken with the furnace. The steel slag adhered to the ladle rim increases the gap between the cover and the ladle, which weakens the heat preservation effect. More importantly, the automatic covering of the cover is difficult in the case of thick slag accumulation on the rim and uneven rim, which may cause the cover to fail to cover or even fall off, resulting in damage and safety hazards, and reducing the ladle covering rate. At present, manual cleaning of the slag adhered to the rim is difficult due to the high temperature environment and the high diameter of the ladle opening, and the slag adhered has a certain strength, which greatly increases the difficulty of cleaning operations. Therefore, the industry uses mechanical rotary cleaning or hydraulic push cleaning mechanism to clean the slag, and the cleaning equipment has a complex structure, runs with hydraulic pressure or power consumption, and the biggest problem is that it cannot clean the slag adhered to the rim with the cover, so it is necessary to improve. SUMMARY
[0003] The technical problem to be solved by the utility model is to provide a device for cleaning the slag adhered to the rim of a ladle with a cover. This cleaning device can clean the slag accumulated on the rim of the ladle with a cover in time, so that the cover can be smoothly covered on the ladle, eliminating the disadvantages of not being able to clean the slag with the cover and the risk of the cover falling off, reducing the temperature drop of the molten steel and the pollution of the flue gas to the environment, reducing the production cost, and eliminating the need for manual cleaning of the accumulated slag, reducing the labor intensity and operation risk of the workers on site.
[0004] The technical solution to solve the above technical problems is:
[0005] A device for cleaning the slag adhered to the rim of a ladle with a cover, comprising a slag scraping plate, a support column, an inclined support, a bottom beam, a cross beam, and a lifting lug. The slag scraping plate is a rectangular steel plate, the plate surface is perpendicular, the length direction of the slag scraping plate is in the horizontal direction, the two ends of the slag scraping plate are respectively welded and connected with the support columns, the support columns are vertical square steels, the lower ends of the two support columns are respectively welded and connected with the middle parts of the two bottom beams, the two bottom beams are placed in parallel, the length direction of the two bottom beams is perpendicular to the length direction of the slag scraping plate, the two sides of the two bottom beams are respectively welded and connected with the two sides of the support columns, the two bottom beams are welded and connected by the cross beam, the cross beam is located directly below the slag scraping plate, and the two lifting lugs are respectively welded on the upper ends of the support columns at the two ends of the slag scraping plate.
[0006] The above-mentioned device for cleaning slag stuck on the edge of a covered ladle, each of the supporting columns is composed of two square steels, the two square steels are arranged side by side, there is a gap between the two square steels, the gap matches the thickness of the scraper plate, the scraper plate is placed in the gap between the two square steels, and the scraper plate is welded to the two square steels respectively.
[0007] The above-mentioned device for cleaning slag stuck on the edge of a covered ladle comprises two crossbeams, both ends of which are respectively welded to one side of the lower ends of two square steels of two supporting columns and the upper surface of the bottom beam.
[0008] The above-mentioned device for cleaning slag stuck on the edge of the steel ladle with a cover also has a slag receiving bucket, which is a rectangular bucket body with an open upper end. The length direction of the slag receiving bucket is parallel to the length direction of the scraper plate. The two slag receiving buckets are respectively placed on the ground on both sides of the beam below the scraper plate.
[0009] The beneficial effects of the utility model are:
[0010] The scraper blade of this utility model is placed vertically, and its upper edge can scrape away slag stuck to the edge of the ladle. The support columns and bottom beam can stably support the scraper blade, and the inclined supports and cross beams can secure the support columns and bottom beam. This utility model can reuse continuous casting billets for processing, and its overall structure is strong, lightweight, has a low center of gravity, and is stable. During use, it is stable and not prone to displacement or deformation.
[0011] The utility model discloses a simple structure, is easy to use, can promptly clean the slag on the edge of the ladle with a ladle cover, so that the ladle cover can cover the ladle stably, eliminates the disadvantage that the slag cannot be cleaned with the ladle cover and the risk of the ladle cover falling off, reduces the temperature drop of molten steel and the pollution of smoke to the environment, reduces production cost, eliminates the need for manual cleaning of slag, and reduces the labor intensity and operation risk of on-site employees. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural diagram of the utility model;
[0013] Figure 2 It is the main view of the utility model;
[0014] Figure 3 It is a left view of the utility model;
[0015] Figure 4 It is a top view of the utility model;
[0016] Figure 5 This is the main view of the utility model with the slag receiving bucket placed;
[0017] Figure 6 yes Figure 5 A top view of
[0018] Figure 7 It is a schematic diagram of the use state of the utility model.
[0019] The markings in the figure are as follows: scraper plate 1, supporting column 2, inclined support 3, bottom beam 4, cross beam 5, lifting lug 6, ladle cover 7, overhead crane hook 8, ladle 9, ladle ear shaft 10, ladle edge 11, sticky slag 12, slag receiving bucket 13. DETAILED DESCRIPTION
[0020] The utility model is composed of a scraper plate 1, a supporting column 2, an inclined support 3, a bottom beam 4, a cross beam 5, a lifting lug 6, and a slag receiving bucket 13.
[0021] Figure 1 、 2 Figures 3 and 4 show that the scraper blade 1 is a rectangular steel plate with a vertical surface and a horizontal length. The scraper blade 1 has a length of 4200 to 4800 mm, a height of 2200 mm, and a thickness of 50 to 100 mm. During use, the upper edge of the scraper blade 1 can scrape away slag 12 adhering to the ladle rim 11.
[0022] Figure 1 、 2 Figures 3 and 4 show that the scraper blade 1 is supported and fixed at both ends by support columns 2. Each support column 2 is composed of two square steel bars, placed side by side with a gap between them that matches the thickness of the scraper blade 1. The scraper blade 1 is placed in the gap between the two square steel bars and welded to the two square steel bars. The support columns 2 are 150-200 mm in length, 150-200 mm in width, and 4500-5500 mm in height.
[0023] Figure 1 、 2 Figures 3 and 4 show that the lower ends of the two support columns 2 are welded to the two middle bottom beams 4. The two bottom beams 4 are placed in parallel, with their lengths perpendicular to the length of the scraper 1. Diagonal supports 3 are welded to the sides of the support columns 2 on both sides of the two bottom beams 4. The support columns 2 and bottom beams 4 can provide stable support for the scraper 1. The bottom beam 4 is 4000mm long, 300-350mm wide, and 300-350mm thick. The diagonal supports 3 are 1500mm long, 150-200mm wide, and 150-200mm thick.
[0024] Figure 1 、 2Figures 3 and 4 show that the two bottom beams 4 are welded together by a crossbeam 5, which is located directly below the scraper blade 1. There are two crossbeams 5, and their ends are welded to the lower ends of the two square steel bars of the two support columns 2 and the upper surface of the bottom beam 4. The crossbeam 5 can connect and fix the two bottom beams 4.
[0025] Figure 1 、 2 , 3, and 4 show that two lifting lugs 6 are respectively welded to the upper ends of the support columns 2 at both ends of the scraper plate 1. The lifting lugs 6 are used to lift the device to the position of cleaning the ladle 9 when in use.
[0026] Figure 5 、 6 The scrap receiving bucket 13 is a rectangular bucket with an open top. The length of the scrap receiving bucket 13 is parallel to the length of the scraping plate 1. The two scrap receiving buckets 13 are placed on the ground on both sides of the crossbeam 5 below the scraping plate 1. When in use, the bag edge sticky residue 12 scraped off by the scraping plate 1 falls into the scrap receiving bucket 13 to prevent it from being scattered on the ground and polluting the environment.
[0027] Figure 7 The usage process of the utility model is as follows:
[0028] Place the bottom beam 4 on the horizontal ground, lift the ladle 9 to the top of the slag cleaning device by the overhead crane hook 8, and then use another overhead crane hook 8 to lift the bottom of the ladle 9. After the ladle 9 is in a horizontal state, continue to raise the bottom of the ladle 9. The front end of the ladle 9 is tilted downward, and the upper end of the ladle cover 7 is connected to the upper end of the ladle 9 through a rotating shaft. The ladle cover 7 is in a vertical position under the action of gravity. Due to the tilt of the ladle 9, the lower end of the ladle cover 7 has a gap with the lower end of the ladle rim 11;
[0029] The bottom of the ladle 9 is lifted by the overhead crane to increase the gap between the ladle cover 7 and the ladle rim 11 at the lower end of the ladle 9, so that the gap reaches a width that the scraper plate 1 can extend along the ladle rim 11, and then the overhead crane is controlled to move the ladle 9 up and down. Since the slag cleaning device is fixed on the ground, during the downward movement of the ladle 9, the gravity of the ladle 9 causes the upper end of the scraper plate 1 and the lower end of the ladle rim 11 to produce relative movement, and the scraper plate 1 can scrape off the sticky slag 12 on the ladle rim 11. The sticky slag 12 falls into the slag receiving bucket 13 after separating from the ladle rim 11, completing the processing of the sticky slag 12 on the ladle rim 11, thereby achieving the purpose of slag cleaning.
[0030] During the above working process, the crane operator correctly, carefully and delicately operates the height, position and lifting of the ladle controlled by the crane, and under the premise of keeping a distance from the ladle and ensuring the safety of the operator, the operator closely communicates and cooperates to ensure safety. The tilting angle of the ladle 9 and the ladle cover 7 cannot be greater than 135°, so as to prevent the ladle cover 7 from falling off due to the too large tilting angle. When the slag 12 is too large, the ladle cover 7 must be removed first, so as to prevent the ladle cover 7 from falling off during the cleaning process. The crane needs to operate slowly, and after the ladle cover 7 and the lower end of the ladle 9 are opened at a certain angle, the ladle 9 is slowly lowered by the crane, and the connection state of the ladle cover 7 and the hinge shaft of the ladle is observed at any time, so as to prevent the ladle cover 7 from falling off due to the top of the ladle cover 7 hitting the slag cleaning device or the upper end of the slag scraping plate 1.
[0031] The slag 12 on the ladle rim 11 can be cleaned in time and effectively, so that the ladle cover 7 of the ladle 9 can be effectively and safely covered, and the ladle cover 7 will not be uneven or even fall off from the ladle due to the too large and protruding slag 12 on the ladle rim. The ladle cover rate of the ladle 9 is improved, and operable space, stability and feasibility are provided for covering the ladle 9.
[0032] The slag cleaning device can be used for old continuous casting billets, and is convenient for local material supply. The slag cleaning device is integrally welded and is full-welded with beveled grooves, has large overall structural strength, large total weight, low gravity center and stable structure, and is placed on the ground in the steelmaking workshop. During use, the slag cleaning device is stable and is not easy to displace and deform. If the slag cleaning device needs to be moved, the crane can be used to lift and displace the slag cleaning device through the lifting lugs 6 at the top of the two side support columns 2, and the slag cleaning device does not need to be disassembled or fixed with nuts, so that the slag cleaning device is convenient and easy to use.
[0033] An embodiment of the slag cleaning device is as follows:
[0034] The slag scraping plate 1 is made of MnCr high-temperature alloy steel or carbon steel, has a length of 4600 mm, a height of 2200 mm and a thickness of 70 mm.
[0035] The support column 2 is made of square billet or square steel, has a length of 200 mm, a height of 4500 mm and a thickness of 200 mm. The inclined support 3 is made of square billet or square steel, has a length of 1500 mm, a height of 1061 mm, a width of 200 mm and a thickness of 200 mm.
[0036] The bottom beam 4 is made of square billet or square steel, has a length of 4000 mm, a height of 300 mm and a width of 340 mm.
[0037] The cross beam 5 is made of square billet or square steel, has a length of 4600 mm, a height of 200 mm and a thickness of 200 mm. The lifting lug 6 is made of high-strength hot-rolled plate and has a thickness of 70 mm.
Claims
1. A device for cleaning slag from the rim of a ladle with a ladle cover, characterized by: It comprises a scraper plate (1), a support column (2), an inclined support (3), a bottom beam (4), a cross beam (5), and a lifting lug (6). The scraper plate (1) is a rectangular steel plate. The plate surface of the scraper plate (1) is vertical. The length direction of the scraper plate (1) is in the horizontal direction. The two ends of the scraper plate (1) are respectively welded to the support columns (2). The support columns (2) are upright square steel. The lower ends of the two support columns (2) are respectively connected to the middle of the two bottom beams (4). The two bottom beams (4) are placed in parallel, and the length direction of the two bottom beams (4) is perpendicular to the length direction of the scraper plate (1). The two sides of the two bottom beams (4) are respectively provided with oblique supports (3) welded to the two sides of the support column (2). The two bottom beams (4) are welded to each other by a cross beam (5), and the cross beam (5) is located directly below the scraper plate (1). The two lifting lugs (6) are respectively welded to the upper ends of the support columns (2) at both ends of the scraper plate (1).
2. The device for cleaning slag from the rim of a covered ladle according to claim 1, characterized in that: Each of the supporting columns (2) is composed of two square steels, which are arranged side by side with a gap between them. The gap matches the thickness of the scraper plate (1). The scraper plate (1) is placed in the gap between the two square steels, and the scraper plate (1) is welded to the two square steels respectively.
3. The device for cleaning slag from the rim of a covered ladle according to claim 1, characterized in that: There are two cross beams (5), and the two ends of the two cross beams (5) are respectively welded to the lower end side of the two square steels of the two supporting columns (2) and the upper surface of the bottom beam (4).
4. The device for cleaning slag from the rim of a covered ladle according to claim 1, characterized in that: It also has a slag receiving bucket (13), which is a rectangular bucket body. The upper end of the slag receiving bucket (13) is open, and the length direction of the slag receiving bucket (13) is parallel to the length direction of the scraping plate (1). The two slag receiving buckets (13) are respectively placed on the ground on both sides of the beam (5) below the scraping plate (1).