Novel steelmaking continuous casting covering slag baking device
By combining a local temperature control component with a movable drive shaft, the problems of high moisture content and temperature control caused by unbaked protective slag in continuous casting molds were solved, achieving stable baking and temperature control of the protective slag and improving the quality of the cast billet.
Patent Information
- Application Number
- CN202520029891.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-07
AI Technical Summary
The existing continuous casting mold flux is not pre-treated by baking before use, resulting in high moisture content, which affects the quality of the cast billet. Furthermore, prolonged heating may cause slag sintering, making it difficult to control the temperature.
A novel protective slag baking device for continuous casting in steelmaking was designed. It adopts a local temperature control component, including a sealed mounting shell and a zone slag protection plate. By switching between the heating output end and the cooling output end, the device uses sensors to detect temperature anomalies and uses a movable drive shaft to drive the zone slag protection plate to move, thereby achieving temperature control of the protective slag.
It improves the baking stability of the protective slag, ensures the slag is dry, avoids gas generation, improves the quality of the cast billet, controls the temperature, and enhances the accuracy of temperature control.
Smart Images
Figure CN223783202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of steelmaking, and particularly relates to a novel steelmaking continuous casting protective slag baking device. BACKGROUND
[0002] The protective slag is an important auxiliary material in continuous casting production, and the protective slag added to the surface of the crystallizer molten steel gradually heats up and sintering and melting occur under the action of heat released by the molten steel, thereby forming a double-layer or multi-layer slag layer structure on the surface of the crystallizer molten steel. Due to the downward movement of the casting blank at a certain blank pulling speed and the up-down vibration of the crystallizer, negative slip movement is generated, and the pressure difference causes the molten slag to be sucked into the space between the crystallizer and the blank shell. Under the cooling of the crystallizer wall, a glass body or crystalline solid slag film is formed on the side of the crystallizer wall, and a liquid slag state is maintained on the side of the blank shell. The original continuous casting crystallizer protective slag is not subjected to baking pretreatment before use, and the use of the crystallizer may generate gas or air gap, which greatly affects the quality of the continuous casting blank.
[0003] Some crystallizer protective slag is baked and dehydrated before use, which can fully remove the excess moisture in the protective slag and ensure the dryness of the protective slag during use, thereby avoiding the generation of air gap and gas in the crystallizer copper pipe due to the high water content of the crystallizer protective slag during use. However, if the heating temperature is too high for a long time, the protective slag may be sintered, which is not conducive to the temperature control of the protective slag in the area. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a novel steelmaking continuous casting protective slag baking device, has the characteristics of the protective slag of temperature control area position is favorable, improves the baking stability.
[0005] The utility model provides the following technical scheme: a novel steelmaking continuous casting protective slag baking device, including baking cylinder, be equipped with local temperature control subassembly on the baking cylinder, local temperature control subassembly includes sealed installation shell and area protective slag board, area protective slag board is located in sealed installation shell, the both sides of area protective slag board are heating output end and cooling output end respectively, area protective slag board inside has two respectively for heating, cooling medium of heating output end and cooling output end, area protective slag board outside fixedly connected with four sealing baffle shell for sealing.
[0006] Among them, the heating output end and the cooling output end are provided with two sealing baffle shells on the outside, and the sealing baffle shells are covered with sealing rings on the outside.
[0007] Among them, the inside of the baking cylinder is provided with a sensor for detecting temperature, and the temperature is in an excessively high state, and the heating output end is located in the baking cylinder.
[0008] The region slag protection plate is rotatably connected with the sealing installation shell through a movable driving shaft, and the movable driving shaft is connected with a driving motor.
[0009] The sealing installation shell is provided with a movable inner cavity, and the region slag protection plate is located in the movable inner cavity.
[0010] The sealing installation shell is provided with a movable inner cavity, and the region slag protection plate is located in the movable inner cavity.
[0011] The sealing installation shell is fixed outside the baking cylinder, and the medium for heating and cooling is a heating wire and cooling water respectively.
[0012] The utility model discloses a beneficial effect is:
[0013] The local temperature control assembly includes a sealing installation shell and a region slag protection plate, and the region slag protection plate is provided with a heating output end and a cooling output end on both sides.
[0014] The parts not involved in the device are the same as the prior art or can be realized by using the prior art. DETAILED DESCRIPTION
[0015] Figure 1 The structure schematic view of the utility model is shown in the figure.
[0016] Figure 2 The front view of the utility model is shown in the figure.
[0017] Figure 3 The structure schematic view of the local temperature control assembly in the utility model is shown in the figure.
[0018] Figure 4 The structure schematic view of the region slag protection plate in the utility model is shown in the figure.
[0019] In the figure: 1, baking cylinder; 2, local temperature control assembly; 21, sealing installation shell; 211, movable inner cavity; 22, region slag protection plate; 221, heating output end; 222, cooling output end; 23, sealing blocking shell; 24, movable driving shaft; 25, circulating pipe. CONCRETE IMPLEMENTATION
[0020] Please refer to Figures 1-4The utility model provides the following technical scheme: including baking cylinder 1, be equipped with local temperature control assembly 2 on baking cylinder 1, local temperature control assembly 2 includes sealed installation shell 21 and area slag protection board 22, and area slag protection board 22 is located in sealed installation shell 21, and the both sides of area slag protection board 22 are heating output end 221 and cooling output end 222 respectively, and area slag protection board 22 inside has two media for heating, cooling of heating output end 221 and cooling output end 222 respectively, and four sealing baffle shells 23 for sealing are fixedly connected on the outside of area slag protection board 22.
[0021] In the embodiment: through the local temperature control assembly 2 of setting includes sealed installation shell 21 and area slag protection board 22, and the both sides of area slag protection board 22 are heating output end 221 and cooling output end 222 respectively, and area slag protection board 22 inside has two media for heating, cooling of heating output end 221 and cooling output end 222 respectively, area slag protection board 22 is set at the position of the area position that needs to be warmed, by using heating output end 221 to the protection slag, by detecting temperature under abnormal state, can use movable drive shaft 24 to drive area slag protection board 22 movement, cooling output end 222 is to the protection slag, can timely protect the protection slag, benefit temperature control the protection slag of area position, improve the stability of baking, by starting movable drive shaft 24, drive area slag protection board 22 movement in movable inner cavity 211, heating output end 221 and cooling output end 222 can be switched to use at this time, simultaneously, sealing baffle shell 23 can move in movable inner cavity 211, so that heating output end 221 and cooling output end 222 can be docked with baking cylinder 1 when in use, and multiple sealing baffle shells 23 can be continuously docked on baking cylinder 1, to ensure the sealing property of use, when cooling output end 222 is not used in movable inner cavity 211, circulating pipe 25 can be used, and circulating pipe 25 is opposite to cooling output end 222, so that the medium on cooling output end 222 can be discharged, and the new cooling water is discharged through circulating pipe 25, to facilitate the next use.
[0022] Heating output end 221 and cooling output end 222 outside are equipped with two sealing baffle shells 23, and the outer side of sealing baffle shell 23 is covered with a sealing ring; when multiple sealing baffle shells 23 are set, they can be continuously docked on baking cylinder 1, to ensure the sealing property of use.
[0023] The inside of baking cylinder 1 is provided with a temperature sensor for detecting temperature, and heating output end 221 is located in baking cylinder 1 when the temperature is in an excessively high state; the temperature sensor detects the temperature, and heating output end 221 and cooling output end 222 can be used according to the change of temperature.
[0024] The regional slag protection plate 22 is rotatably connected with the sealing installation shell 21 through a movable driving shaft 24, and the movable driving shaft 24 is connected with a driving motor; the movable driving shaft 24 is started to drive the regional slag protection plate 22 to move in the movable inner cavity 211, and at this time, the heating output end 221 and the cooling output end 222 can be switched for use.
[0025] The sealing installation shell 21 is provided with a movable inner cavity 211, and the regional slag protection plate 22 is located in the movable inner cavity 211; the regional slag protection plate 22 has a movable space, which is beneficial to use the heating output end 221 and the cooling output end 222 respectively.
[0026] The sealing installation shell 21 is provided with a movable inner cavity 211, and the regional slag protection plate 22 is located in the movable inner cavity 211; the regional slag protection plate 22 has a movable space, which is beneficial to use the heating output end 221 and the cooling output end 222 respectively.
[0027] The sealing installation shell 21 is fixed outside the baking cylinder 1, and the medium for heating and cooling is a heating wire and cooling water respectively; an interface opposite to the cooling output end 222 can be arranged on the sealing installation shell 21, and when the cooling output end 222 is located in the sealing installation shell 21, the circulating pipe 25 can be used.
[0028] The working principle and use process of the utility model are as follows: the two sides of the regional slag protection plate 22 are respectively provided with a heating output end 221 and a cooling output end 222, and the regional slag protection plate 22 is internally provided with two mediums respectively used for heating and cooling of the heating output end 221 and the cooling output end 222; the regional slag protection plate 22 is arranged at a position of a region needing to be heated, the heating output end 221 is used to protect the slag, the temperature is detected to be in an abnormal state, the movable driving shaft 24 is used to drive the regional slag protection plate 22 to move, the cooling output end 222 is used to protect the slag, the temperature of the slag in the region position can be controlled, the baking stability is improved, the movable driving shaft 24 is started to drive the regional slag protection plate 22 to move in the movable inner cavity 211, at this time, the heating output end 221 and the cooling output end 222 can be switched for use, the sealing blocking shell 23 can move in the movable inner cavity 211, the heating output end 221 and the cooling output end 222 can be connected with the baking cylinder 1 when used, a plurality of sealing blocking shells 23 are arranged, the sealing blocking shells 23 can be continuously connected with the baking cylinder 1, the sealing property in use is ensured, when the cooling output end 222 is not used and located in the movable inner cavity 211, the circulating pipe 25 can be used, the circulating pipe 25 is opposite to the cooling output end 222, the medium on the cooling output end 222 can be discharged through the circulating pipe 25 and new cooling water is discharged, and the next use is facilitated.
Claims
1. A novel steelmaking continuous casting protective slag baking device, comprising a baking cylinder (1), characterized in that: The baking cylinder (1) is provided with a local temperature control component (2). The local temperature control component (2) includes a sealing mounting shell (21) and a zone slag protection plate (22). The zone slag protection plate (22) is located inside the sealing mounting shell (21). The two sides of the zone slag protection plate (22) are a heating output end (221) and a cooling output end (222), respectively. The zone slag protection plate (22) has two media inside for heating and cooling the heating output end (221) and the cooling output end (222), respectively. Four sealing baffles (23) for sealing are fixedly connected to the outside of the zone slag protection plate (22).
2. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: Two sealing baffles (23) are provided on the outside of both the heating output end (221) and the cooling output end (222), and a sealing ring is wrapped around the outside of the sealing baffle (23).
3. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: The baking cylinder (1) is equipped with a temperature sensor inside. When the temperature is too high, the heating output terminal (221) is located inside the baking cylinder (1).
4. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: The area slag protection plate (22) is rotatably connected to the sealed mounting shell (21) via a movable drive shaft (24), and the movable drive shaft (24) is connected to a drive motor.
5. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: The sealed mounting shell (21) has a movable inner cavity (211), and the regional slag protection plate (22) is located inside the movable inner cavity (211).
6. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: The outer side of the sealed mounting shell (21) is sealed with a circulation pipe (25), one end of which is opposite to the cooling output end (222).
7. The novel steelmaking continuous casting protective slag baking device according to claim 1, characterized in that: The sealed mounting shell (21) is fixed to the outside of the baking cylinder (1), and the heating and cooling media are heating wire and cooling water, respectively.