Heat-insulated conveyor roller

Abstract

This utility model discloses a heat-insulating conveying roller, including a frame, a conveying roller, and a steel billet. Bearings are fixedly installed on both sides of the frame, and a water-cooled shaft is rotatably connected between the two bearings. The conveying roller is fixedly installed on the water-cooled shaft, and the steel billet is placed above the conveying roller. The conveying roller includes two fixed plates, multiple retaining rings, and four fixing bolts. The two fixed plates and multiple retaining rings are fixedly connected by the four fixing bolts. The multiple retaining rings are located between the two fixed plates. Fins are provided at the top and bottom of each pair of adjacent retaining rings and at the top and bottom of the two outermost retaining rings and the fixed plates. An upper insulation box and a lower insulation box are respectively provided at the top and bottom of the inner side of the frame. The conveying roller is located between the upper insulation box and the lower insulation box. This utility model of a heat-insulating conveying roller effectively utilizes the residual heat of the steel billet, reduces energy consumption, shortens the production cycle, improves production efficiency, and solves the problem of rapid heat loss and temperature drop of high-temperature steel billets before entering the rolling mill.

Description

Technical Field

[0001] This utility model relates to the field of cast steel production technology, specifically to a heat-insulated conveyor roller. Background Technology

[0002] Continuous casting is a steel production process used to continuously pour molten steel into billets of specific shapes and sizes. The process begins with liquid steel in a ladle, passes through an tundish, and then through a water-cooled crystallizer, where the molten steel is rapidly cooled and solidified to form a primary billet shell. This shell is then drawn out by a leveling machine and continuously cut into billets of predetermined lengths. Compared to traditional ingot casting, continuous casting technology offers advantages such as high production efficiency, low energy consumption, and high product quality, making it a core component of modern steel production.

[0003] Traditional conveyor rollers have the following drawbacks: When using traditional conveyor rollers, the high-temperature steel billets generated during the continuous casting process cool down quickly. As a result, the high-temperature steel billets lose heat rapidly and their temperature drops before entering the rolling mill. Therefore, the steel billets need to be reheated after entering the rolling mill, which increases energy consumption, prolongs the production cycle, and reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a heat-insulated conveying roller to solve the problem mentioned in the background art that, when using traditional conveying rollers, the high-temperature steel billets generated during the continuous casting process cool down quickly, resulting in rapid heat loss and temperature drop before entering the rolling mill. Therefore, the steel billets need to be reheated after entering the rolling mill, leading to increased energy consumption, extended production cycle, and reduced production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating conveying roller, comprising a frame, a conveying roller, and a steel billet. Bearings are fixedly installed on both sides of the frame, and a water-cooled shaft is rotatably connected between two of the bearings. The conveying roller is fixedly installed on the water-cooled shaft, and the steel billet is placed above the conveying roller. The conveying roller includes two fixed plates, multiple retaining rings, and four fixing bolts. The two fixed plates and the multiple retaining rings are fixedly connected by the four fixing bolts. The multiple retaining rings are located between the two fixed plates. Fins are provided at the top and bottom of each pair of adjacent retaining rings and at the top and bottom of the two outermost retaining rings and the fixed plates. The steel billet is continuously conveyed forward on the conveying roller.

[0006] Preferably, an upper insulation box and a lower insulation box are respectively provided at the top and bottom of the inner side of the frame, and the conveying roller is located between the upper insulation box and the lower insulation box. The steel billet is provided with insulation boxes at the top and bottom to reduce heat loss during the steel billet conveying process.

[0007] Preferably, heating plates are fixedly installed on the top of the inner wall of the upper insulation box and the bottom of the inner wall of the lower insulation box. Heating wires are installed on the heating plates to heat the steel billet and play a role in heat supplementation.

[0008] Preferably, both the upper and lower insulation boxes include an outer shell, and an insulation lining is connected to one side of the outer shell. The insulation lining is made of rock wool board and serves as insulation.

[0009] Preferably, the steel billet is in contact with the fins, and the fins support the steel billet.

[0010] Preferably, the two fins located between two adjacent retaining rings are symmetrically arranged, and each fin is connected to two fixing bolts to fix the fins.

[0011] Preferably, the water-cooled shaft has an internal water-cooling channel through which coolant circulates, thus achieving a cooling effect.

[0012] Preferably, a gasket is provided on each of the two fixed plates on opposite sides, and the two fixed plates, multiple retaining rings and multiple retaining rings are all located on the outside of the water-cooling shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are: effectively utilizing the residual heat of the steel billet, reducing energy consumption, shortening the production cycle, improving production efficiency, and solving the problem of rapid heat loss and temperature drop of high-temperature steel billets before entering the rolling mill. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the steel billet and the conveying roller of this utility model;

[0016] Figure 3 This is a side view of the present invention;

[0017] Figure 4 This is a plan view of the heating plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the insulated box of this utility model.

[0019] In the diagram: 1. Steel billet; 2. Retaining ring; 3. Fin; 4. Fixing bolt; 5. Water-cooled shaft; 6. Fixing plate; 7. Gasket; 8. Water-cooled channel; 9. Bearing; 10. Conveying roller; 11. Frame; 12. Heating plate; 13. Upper insulation box; 14. Lower insulation box; 15. Heating wire; 16. Insulation lining; 17. Outer shell. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a heat-insulating conveying roller, including a frame 11, a conveying roller 10, and a steel billet 1. Bearings 9 are fixedly installed on both sides of the frame 11, and a water-cooled shaft 5 is rotatably connected between the two bearings 9. The conveying roller 10 is fixedly installed on the water-cooled shaft 5, and the steel billet 1 is placed above the conveying roller 10. The conveying roller 10 includes two fixing plates 6, multiple retaining rings 2, and four fixing bolts 4. The two fixing plates 6 and the multiple retaining rings 2 are fixedly connected by the four fixing bolts 4. The multiple retaining rings 2 are located between the two fixing plates 6. The top and bottom of each pair of adjacent retaining rings 2 and the top and bottom of the outermost two retaining rings 2 and the fixing plates 6 are provided with fins 3. The steel billet 1 is in contact with the fins 3. The steel billet 1 is continuously conveyed forward on the conveying roller 10. The conveying roller 10 contacts the steel billet 1 through the fins 3. The small contact area between the conveying roller 10 and the steel billet 1 reduces heat transfer and heat loss from the steel billet 1.

[0022] The top and bottom of the inner side of the frame 11 are respectively provided with an upper insulation box 13 and a lower insulation box 14. The conveying roller 10 is located between the upper insulation box 13 and the lower insulation box 14. Heating plates 12 are fixedly installed on the top of the inner wall of the upper insulation box 13 and the bottom of the inner wall of the lower insulation box 14. Heating wires 15 are installed on the heating plates 12. Both the upper insulation box 13 and the lower insulation box 14 include an outer shell 17. An insulation lining 16 is connected to one side of the outer shell 17. The insulation lining 16 is made of rock wool board. The steel billet 1 is provided with insulation boxes at the top and bottom to reduce the heat loss of the steel billet 1 during the conveying process and to heat the steel billet 1 through the heating plates 12, so as to keep the steel billet 1 warm and replenish its heat.

[0023] The two fins 3 located between two adjacent retaining rings 2 are symmetrically arranged. Each fin 3 is connected to two fixing bolts 4. Each fin 3 is fixed by two fixing bolts 4 and fixed by fixing plate 6 and retaining ring 2.

[0024] The water-cooled shaft 5 has a water-cooling channel 8 inside, which contains flowing coolant. The water-cooled shaft 5 cools the conveyor roller 10, thereby reducing the temperature of the conveyor roller 10 and extending its service life.

[0025] Each of the two fixing plates 6 has a gasket 7 on one side opposite to the other. The two fixing plates 6, multiple retaining rings 2 and multiple retaining rings 2 are all located on the outside of the water-cooled shaft 5. The conveying roller 10 is composed of two fixing plates 6, multiple retaining rings 2 and multiple retaining rings 2, and the conveying roller 10 is fixed on the water-cooled shaft 5.

[0026] In practical use, this utility model provides a heat-insulating conveying roller. The steel billet 1 is continuously conveyed forward on the conveying roller 10. Insulation boxes are set above and below the steel billet 1 to reduce heat loss during the conveying process. The steel billet 1 can be heated by the heating plate 12 to keep it warm and replenish heat. The conveying roller 10 contacts the steel billet 1 through the fins 3. The small contact area between the conveying roller 10 and the steel billet 1 reduces heat transfer and heat loss from the steel billet 1. It can effectively utilize the residual heat of the steel billet 1, reduce energy consumption, shorten the production cycle, and improve production efficiency.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat-insulating conveyor roller, comprising a frame (11), a conveyor roller (10), and a steel billet (1), characterized in that: Bearings (9) are fixedly installed on both sides of the frame (11). A water-cooled shaft (5) is rotatably connected between the two bearings (9). The conveying roller (10) is fixedly installed on the water-cooled shaft (5). The steel billet (1) is set above the conveying roller (10). The conveying roller (10) includes two fixed plates (6), multiple retaining rings (2) and four fixing bolts (4). The two fixed plates (6) and multiple retaining rings (2) are fixedly connected by four fixing bolts (4). Multiple retaining rings (2) are located between the two fixed plates (6). The top and bottom of each pair of adjacent retaining rings (2) and the top and bottom of the outermost two retaining rings (2) and the fixed plate (6) are provided with fins (3).

2. The heat-insulating conveyor roller according to claim 1, characterized in that: The upper insulation box (13) and the lower insulation box (14) are respectively provided at the top and bottom of the inner side of the frame (11), and the conveying roller (10) is located between the upper insulation box (13) and the lower insulation box (14).

3. The heat-insulating conveyor roller according to claim 2, characterized in that: Heating plates (12) are fixedly installed on the top of the inner wall of the upper insulation box (13) and the bottom of the inner wall of the lower insulation box (14), and heating wires (15) are installed on the heating plates (12).

4. The heat-insulating conveyor roller according to claim 2, characterized in that: Both the upper insulation box (13) and the lower insulation box (14) include an outer shell (17), and an insulation lining (16) is connected to one side of the outer shell (17). The insulation lining (16) is made of rock wool board.

5. The heat-insulating conveyor roller according to claim 1, characterized in that: The steel billet (1) is in contact with the fin (3).

6. The heat-insulating conveyor roller according to claim 1, characterized in that: The two fins (3) located between two adjacent retaining rings (2) are symmetrically arranged, and each fin (3) is connected to two fixing bolts (4).

7. The heat-insulating conveyor roller according to claim 1, characterized in that: The water-cooled shaft (5) has a water-cooling channel (8) inside.

8. The heat-insulating conveyor roller according to claim 1, characterized in that: Gaskets (7) are provided on opposite sides of the two fixed plates (6), and the two fixed plates (6), multiple retaining rings (2) and multiple retaining rings (2) are all located on the outside of the water-cooled shaft (5).

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