A billet roller gradual heat preservation heating device

Abstract

The utility model belongs to the steel billet heat preservation heating technical field especially relates to a steel billet roller gradual heat preservation heating device. Including the roller, be installed with the heat preservation cover on the roller, both ends of heat preservation cover upside and downside all are fixed with the vertical board, and the two vertical boards of same side are rotatably connected with the two -way screw rod and are fixedly connected with the sliding bar, and the two -way screw rod is connected with two sliding blocks, two sliding blocks all are connected with the sliding bar, and the sliding block is rotatably connected with the rotary rod, and the rotary rod sleeve connects with the gas side branch pipe, and the gas side branch pipe is hinged and penetrates on the heat preservation cover, and the heat preservation cover is fixed with the gas middle branch pipe, and the gas side branch pipe, gas middle branch pipe all are connected with the hose outside the heat preservation cover, and all are connected with the nozzle inside the heat preservation cover, and the hose is connected with the gas main pipe, and the gas main pipe is installed with the gas valve. The utility model can heat preservation in the process of transporting the steel billet on the roller, thereby reducing the temperature drop of steel billet, and can meet the rolling temperature requirement when the steel billet is sent to the rolling process.

Description

Technical Field

[0001] This utility model belongs to the field of billet heat preservation and heating technology, and particularly relates to a progressive heat preservation and heating device for billet roller conveyors. Background Technology

[0002] Steel billets produced by continuous casting need to be transported via roller conveyors to the rolling mill for forming. During transportation, the billets experience a temperature drop, requiring reheating upon arrival at the rolling mill. This reheating step increases the complexity of the steelmaking process. To reduce temperature drop, insulation covers are installed on the roller conveyors. However, these conveyors are often quite long, around 80 meters, and the billets still don't reach the required rolling temperature before entering the rolling mill. Therefore, there is an urgent need for a device that can heat and maintain the temperature of the billets during roller conveyor transport, ensuring they reach the required rolling temperature upon entering the rolling mill. Summary of the Invention

[0003] The purpose of this invention is to provide a progressive heat preservation and heating device for steel billet roller conveyors to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A progressive heat preservation and heating device for steel billet roller conveyors includes a roller conveyor with a heat preservation cover installed on it. Vertical plates are fixed to both ends of the upper and lower sides of the heat preservation cover. A bidirectional screw is rotatably connected between two vertical plates on the same side and a sliding rod is fixedly connected thereto. Two sliders are threaded onto the bidirectional screw, and each slider is connected to the sliding rod. A rotating rod is rotatably connected to the sliders. A gas-side branch pipe is sleeved on the rotating rod and is hinged and passes through the heat preservation cover. A gas middle branch pipe is fixedly connected through the heat preservation cover. Both the gas-side branch pipe and the gas middle branch pipe are connected to flexible hoses on the outside of the heat preservation cover and nozzles are connected to the inside of the heat preservation cover. The flexible hoses are connected to a main gas pipe, and a gas valve is installed on the main gas pipe.

[0006] Furthermore, two strip-shaped holes are symmetrically opened on the upper and lower sides of the heat insulation cover, and a support ring is welded to the middle position on both sides of the strip-shaped hole.

[0007] Furthermore, support rods are welded to both sides of the gas-side branch pipe. The support rods on both sides of the gas-side branch pipe pass through the support rings on both sides of the strip hole. The gas-side branch pipe is hinged to the insulation cover through the support rods and support rings. The gas-side branch pipe passes through the insulation cover through the strip hole.

[0008] Furthermore, there is at least one gas branch pipe, which is located between two gas-side branch pipes.

[0009] Furthermore, a sleeve is welded to one end of the rotating rod, and two retaining rings are fixed to the other end of the rotating rod. The rotating rod is connected to the gas-side branch pipe through the sleeve.

[0010] Furthermore, a retaining ring is welded to one side of the slider, and the two sliders are respectively threaded onto two opposite threads of the bidirectional lead screw. The rotating rod passes through the retaining ring, and two retaining rings are located on both sides of the retaining ring.

[0011] Furthermore, an anti-rotation fixing component is installed at either end of the bidirectional lead screw, and the anti-rotation fixing component is fixed to the vertical plate. A handle is installed at one end of the bidirectional lead screw.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model can heat the billet during its transport on the roller conveyor, thereby reducing the temperature drop of the billet and ensuring that the billet meets the rolling temperature requirements when it is delivered to the rolling process.

[0014] 2. The gas-side branch pipe of this utility model can be adjusted in angle to adapt to different steel billet widths, so that the gas can be accurately sprayed onto the steel billet for heating.

[0015] 3. The angle of the two gas-side branch pipes can be adjusted simultaneously by rotating the handle, making operation convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model (cross-section of the roller conveyor).

[0017] Figure 2 This is a schematic diagram of the structure of this utility model (longitudinal section of the roller conveyor).

[0018] Figure 3 This is a schematic diagram of the upper part of the heat insulation cover of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the lower part of the heat insulation cover of this utility model.

[0020] Figure 5 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Figure 6 This is a schematic diagram of the slider structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the rotating rod structure of this utility model.

[0023] The components are: 1. Roller conveyor; 2. Insulation cover; 3. Vertical plate; 4. Bidirectional lead screw; 5. Slide rod; 6. Slider; 7. Rotating rod; 8. Gas side branch pipe; 9. Gas middle branch pipe; 10. Hose; 11. Nozzle; 12. Gas main pipe; 13. Gas valve; 14. Strip hole; 15. Support ring; 16. Support rod; 17. Sleeve; 18. Snap ring; 19. Fixing ring; 20. Anti-rotation fixing component; 21. Rotating handle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0025] like Figures 1-7 As shown, a progressive heat preservation and heating device for a steel billet roller conveyor 1 includes a roller conveyor 1, an insulation cover 2 installed on the roller conveyor 1, and vertical plates 3 fixed at both ends of the upper and lower sides of the insulation cover 2. A bidirectional screw 4 is rotatably connected between the two vertical plates 3 on the same side and a slide rod 5 is fixedly connected thereto. Two sliders 6 are threaded onto the bidirectional screw 4, and both sliders 6 are connected to the slide rod 5. A rotating rod 7 is rotatably connected to the sliders 6. A gas-side branch pipe 8 is sleeved on the rotating rod 7. The gas-side branch pipe 8 is hinged and passes through the insulation cover 2. A gas middle branch pipe 9 is fixedly passed through the insulation cover 2. Both the gas-side branch pipe 8 and the gas middle branch pipe 9 are connected to hoses 10 on the outside of the insulation cover 2 and nozzles 11 are connected to the inside of the insulation cover 2. The hoses 10 are connected to a gas main pipe 12, and a gas valve 13 is installed on the gas main pipe 12.

[0026] The insulation cover 2 has two symmetrical slots 14 on its upper and lower sides, which provide sufficient rotation space for the gas-side branch pipe 8. Support rings 15 are welded to the middle position on both sides of the slots 14, and the support rings 15 are used to hinge the gas-side branch pipe 8.

[0027] Support rods 16 are welded to both sides of the gas-side branch pipe 8. The support rods 16 on both sides of the gas-side branch pipe 8 pass through the support rings 15 on both sides of the strip hole 14. The gas-side branch pipe 8 is hinged to the heat insulation cover 2 through the support rods 16 and the support rings 15. The gas-side branch pipe 8 passes through the heat insulation cover 2 through the strip hole 14.

[0028] There is at least one gas branch pipe 9, which is located between two gas side branch pipes 8.

[0029] One end of the rotating rod 7 is welded with a sleeve 17, and the other end of the rotating rod 7 is fixed with two retaining rings 18. The rotating rod 7 is connected to the gas side branch pipe 8 through the sleeve 17.

[0030] A retaining ring 19 is welded to one side of the slider 6. The two sliders 6 are respectively threaded onto the two opposite threads of the bidirectional lead screw 4. The rotating rod 7 passes through the retaining ring 19, and the two retaining rings 18 are located on both sides of the retaining ring 19.

[0031] An anti-rotation fixing component 20 is installed at either end of the bidirectional lead screw 4. The anti-rotation fixing component 20 is existing technology and can lock the rotation of the bidirectional lead screw 4, thereby fixing the angle of the gas-side branch pipe 8. The anti-rotation fixing component 20 is fixed on the vertical plate 3, and a handle 21 is installed at one end of the bidirectional lead screw 4.

[0032] The working principle of this utility model is as follows:

[0033] In use, several units of this invention are installed at intervals on the insulation cover 2, ensuring they are positioned between the support rollers of the roller conveyor 1. The angles of the two gas-supported pipes are adjusted according to the width of the billet. Specifically, the handle 21 is rotated to rotate the bidirectional screw 4. The two oppositely oriented threads of the bidirectional screw 4 drive the two sliders 6 to move synchronously and in opposite directions. The sliders 6 drive the rotating rod 7 to move, and the rotating rod 7, through the sleeve 17, drives one end of the gas-supported pipe to rotate. Since the gas-supported pipe is hinged to the insulation cover 2, the other end of the gas-supported pipe rotates in the opposite direction, thus adjusting the jet angle of the gas-supported pipe to adapt to the width of the billet. After adjustment, the bidirectional screw 4 is locked by the anti-rotation fixing part 20 to prevent further rotation. After the billet enters the roller conveyor 1, the gas valve 13 is opened according to the square steel rhythm. Gas is sprayed from the nozzle 11 onto the billet. Due to the high temperature of the billet after tapping (above 950℃), the gas is ignited, thus heating the billet.

[0034] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0035] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A progressive heat preservation and heating device for steel billet roller conveyors, comprising roller conveyors and heat preservation covers installed on the roller conveyors, characterized in that, Both ends of the upper and lower sides of the heat insulation cover are fixed with upright plates. A two-way screw is rotatably connected between the two upright plates on the same side and a slide rod is fixedly connected to them. Two sliders are threaded onto the two-way screw, and both sliders are connected to the slide rod. A rotating rod is rotatably connected to the sliders. A gas-side branch pipe is sleeved on the rotating rod. The gas-side branch pipe is hinged and passes through the heat insulation cover. A gas middle branch pipe is fixedly connected through the heat insulation cover. Both the gas-side branch pipe and the gas middle branch pipe are connected to hoses on the outside of the heat insulation cover and nozzles are connected to them on the inside of the heat insulation cover. The hoses are connected to the main gas pipe, and a gas valve is installed on the main gas pipe.

2. The progressive heat preservation and heating device for steel billet roller conveyors according to claim 1, characterized in that, The heat insulation cover has two symmetrical strip holes on its upper and lower sides, and a support ring is welded to the middle position on both sides of the strip hole.

3. The progressive heat preservation and heating device for billet roller conveyors according to claim 2, characterized in that, Support rods are welded to both sides of the gas-side branch pipe. The support rods on both sides of the gas-side branch pipe pass through the support rings on both sides of the strip hole. The gas-side branch pipe is hinged to the heat insulation cover through the support rods and support rings. The gas-side branch pipe passes through the heat insulation cover through the strip hole.

4. The progressive heat preservation and heating device for steel billet roller conveyors according to claim 3, characterized in that, The number of gas middle branch pipes is at least one, and the gas middle branch pipe is located between two gas side branch pipes.

5. The progressive heat preservation and heating device for steel billet roller conveyors according to claim 1, characterized in that, One end of the rotating rod is welded with a sleeve, and the other end of the rotating rod is fixed with two retaining rings. The rotating rod is connected to the gas-side branch pipe through the sleeve.

6. The progressive heat preservation and heating device for billet roller conveyors according to claim 5, characterized in that, A fixing ring is welded to one side of the slider, and the two sliders are respectively threaded onto two opposite threads of the bidirectional lead screw. The rotating rod passes through the fixing ring, and two retaining rings are located on both sides of the fixing ring.

7. The progressive heat preservation and heating device for steel billet roller conveyors according to claim 1, characterized in that, An anti-rotation fixing component is installed at either end of the bidirectional lead screw, and the anti-rotation fixing component is fixed to the vertical plate. A rotating handle is installed at one end of the bidirectional lead screw.

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