A device for reducing the temperature drop of hot-feeding plate

Abstract

The utility model discloses a device that reduces the temperature drop of hot delivery plate material, which comprises a pit formed by a pit wall, a first heat preservation wall, a second heat preservation wall and a third heat preservation wall arranged in the pit, a lifting assembly arranged between the three heat preservation walls, a blank placed on the lifting assembly, a blank conveying assembly arranged on the side of the lifting assembly away from the third heat preservation wall, and an automatic push plate machine arranged between the blank conveying assembly and the lifting assembly. The utility model is set according to the ground, has simple materials and low manufacturing cost, corresponds to the rolling mill roll changing time, effectively supplements the influence of the process roll changing on the hot delivery rate, obviously reduces the temperature loss of the hot blank during rolling, improves the furnace charging temperature of the blank to be rolled, and due to the close distance from the rolling mill feeding roller way, the offline and return line operation time of the blank is very short, the heat is saved to the maximum extent, and the hot delivery efficiency is ensured.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling technology, and in particular to a device for reducing the temperature drop of hot-delivered steel sheets. Background Technology

[0002] In hot rolling production, the design and operation are typically based on matching the refining and rolling capacities. However, in actual production, factors such as product specifications, molten iron quality, the condition of converters and continuous casting equipment, the condition of hot rolling equipment, and even minor production accidents can lead to a mismatch between the refining and rolling production rhythms. This is especially true during short stops in the rolling process, such as changing the finishing rolls, when steelmaking and continuous casting continue high-speed billet drawing, but the rolling heating furnace cannot be loaded. Furthermore, the design aims to minimize the distance between the refining and rolling workshops, resulting in generally short hot delivery roller paths. Consequently, some hot billets must be taken offline during these periods, causing a decrease in the actual hot delivery rate. The energy consumption resulting from this process is significant in the long run, leading to unnecessary energy waste.

[0003] Increasing the charging temperature of hot billets and the hot delivery rate are key aspects of saving gas and reducing energy consumption in the hot rolling process. For the former, various coordination methods have been adopted on-site, including increasing the continuous casting speed and installing heat insulation covers on the hot delivery roller conveyor. However, the hot delivery rate is greatly affected by the synchronicity of smelting and rolling production and has not been well resolved. Utility Model Content

[0004] The purpose of this invention is to provide a device for reducing the temperature drop of hot-delivered sheet metal, thereby solving the aforementioned problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a device for reducing the temperature drop of hot-delivered sheet material, comprising a pit enclosed by pit walls, wherein a first insulation wall, a second insulation wall and a third insulation wall are provided in the pit, a lifting assembly is provided between the three insulation walls, the sheet material is placed on the lifting assembly, a sheet material conveying assembly is provided on the side of the lifting assembly away from the third insulation wall, and an automatic pusher is provided between the sheet material conveying assembly and the lifting assembly.

[0007] Furthermore, both the outer sides of the first and second insulation walls are connected to fixing ribs, and the bottom of the fixing ribs is fixed to the bottom surface of the pit.

[0008] Furthermore, the lifting assembly includes a base guard plate and a plurality of refractory bricks arranged at equal intervals on the top surface of the base guard plate. The base guard plate is fixedly connected to the pit floor, and a track support is provided between two adjacent refractory bricks. The track support is connected to the base guard plate.

[0009] Furthermore, the bottom surface of the track support is welded to the top surface of the base guard plate.

[0010] Furthermore, the number of track supports is greater than four.

[0011] Furthermore, the distance between the two ends of the base guard plate and the first and second insulation walls is 20-30cm.

[0012] Furthermore, a pedestrian passage is provided between the third insulation wall and the first and second insulation walls.

[0013] Furthermore, the surfaces of the first, second, and third insulation walls are provided with insulation material.

[0014] Furthermore, the billet conveying assembly includes a steel rolling feed roller table and a steelmaking continuous casting roller table, which are connected by a steering roller table.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This utility model is designed for local use, uses simple materials and has low manufacturing cost. It corresponds to the rolling mill roll changing time, effectively compensates for the impact of process roll changing on the hot delivery rate, significantly reduces the temperature loss of hot billets during rolling, improves the furnace charging temperature of billets, and because it is close to the rolling mill feeding roller table, the time for billet offline and return operations is very short, saving heat to the greatest extent and ensuring hot delivery efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a top view of the device for reducing the temperature drop of hot-delivered sheet metal according to this utility model;

[0019] Explanation of reference numerals in the attached drawings: 1. Automatic pusher; 2. Steel rolling feed roller conveyor; 3. Turning roller conveyor; 4. Steelmaking continuous casting roller conveyor; 5. First insulation wall; 6. Track support; 7. Base guard plate; 8. Refractory brick; 9. Third insulation wall; 10. Billet; 11. Second insulation wall; 12. Pit wall; 13. Fixing rib plate. Detailed Implementation

[0020] like Figure 1 As shown, a device for reducing the temperature drop of hot-delivered sheet metal includes a pit enclosed by a pit wall 12, and a first insulation wall 5, a second insulation wall 11 and a third insulation wall 9 are provided in the pit. The surfaces of the first insulation wall 5, the second insulation wall 11 and the third insulation wall 9 are provided with insulation material.

[0021] The outer sides of the first insulation wall 5 and the second insulation wall 11 are both connected to fixing ribs 13, and the bottom of the fixing ribs 13 is fixed to the bottom surface of the pit.

[0022] A pedestrian passage is provided between the third insulation wall 9 and the first insulation wall 5 and the second insulation wall 11.

[0023] A support assembly is provided between the three insulated walls. The blank 10 is placed on the support assembly. The support assembly includes a base guard plate 7 and several refractory bricks 8 arranged at equal intervals on the top surface of the base guard plate 7. The base guard plate 7 is fixedly connected to the pit floor. A track support 6 is provided between two adjacent refractory bricks 8. The number of track supports 6 is greater than 4. The bottom surface of the track support 6 is welded to the top surface of the base guard plate 7.

[0024] The distance between the two ends of the base guard plate 7 and the first insulation wall 5 and the second insulation wall 11 is 20-30cm.

[0025] A billet conveying assembly is provided on the side of the lifting assembly away from the third insulation wall 9. The billet conveying assembly includes a steel rolling feeding roller table 2 and a steelmaking continuous casting roller table 4. The steel rolling feeding roller table 2 and the steelmaking continuous casting roller table 4 are connected by a turning roller table 3. The billet is conveyed through the steelmaking continuous casting roller table 4, then turned by the turning roller table 3, and then conveyed through the steel rolling feeding roller table 2.

[0026] An automatic pusher 1 is provided between the billet conveying assembly and the lifting assembly. The automatic pusher 1 is existing technology and is the most common pusher mechanism on the market. Its specific structure will not be described in detail here.

[0027] The operation process of this utility model is as follows:

[0028] When the heating furnace stops loading steel, the billet is pushed off the steel rolling feed roller 2 by the automatic pusher 1, and then the billet is hoisted onto the track support 6 by the overhead crane. It is then insulated by the first insulation wall 5, the second insulation wall 11 and the third insulation wall 9. The billets 10 are numerically stacked, with a maximum of 6 billets.

[0029] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A device for reducing the temperature drop of hot-delivered sheet metal, characterized in that: The facility includes a pit enclosed by a pit wall (12), and a first insulation wall (5), a second insulation wall (11) and a third insulation wall (9) are provided in the pit. A lifting assembly is provided between the three insulation walls. The billet (10) is placed on the lifting assembly. A billet conveying assembly is provided on the side of the lifting assembly away from the third insulation wall (9). An automatic pusher (1) is provided between the billet conveying assembly and the lifting assembly.

2. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 1, characterized in that: The outer sides of the first insulation wall (5) and the second insulation wall (11) are both connected to a fixing rib plate (13), and the bottom of the fixing rib plate (13) is fixed to the bottom surface of the pit.

3. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 1, characterized in that: The lifting assembly includes a base guard plate (7) and several refractory bricks (8) arranged at equal intervals on the top surface of the base guard plate (7). The base guard plate (7) is fixedly connected to the pit floor. A track support (6) is provided between two adjacent refractory bricks (8). The track support (6) is connected to the base guard plate (7).

4. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 3, characterized in that: The bottom surface of the track support (6) is welded to the top surface of the base guard plate (7).

5. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 4, characterized in that: The number of track supports (6) is greater than 4.

6. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 5, characterized in that: The distance between the two ends of the base guard plate (7) and the first insulation wall (5) and the second insulation wall (11) is 20-30cm.

7. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 1, characterized in that: A pedestrian passage is provided between the third insulation wall (9) and the first insulation wall (5) and the second insulation wall (11).

8. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 1, characterized in that: The surfaces of the first insulation wall (5), the second insulation wall (11) and the third insulation wall (9) are provided with insulation material.

9. The device for reducing the temperature drop of hot-delivered sheet metal according to claim 1, characterized in that: The billet conveying assembly includes a steel rolling feed roller table (2) and a steelmaking continuous casting roller table (4), which are connected by a turning roller table (3).

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